Model FHC 50/FHM10 Fume Hood Controller/Monitor Operation and

Model FHC 50/FHM10 Fume Hood Controller/Monitor Operation and

C r i t i c a l E n v i r o n m e n t s

Model FHC50/FHM10

Fume Hood Controller/Monitor

Operation and Service Manual

P/N 6003830, Revision D

March 2012

U.S. AND CANADA

Sales & Customer Service:

(800) 874-2811/(651) 490-2811

Fax:

(651) 490-3824

SHIP/MAIL TO:

TSI Incorporated

ATTN: Customer Service

500 Cardigan Road

Shoreview, MN 55126

USA

Model FHC50/FHM10

Fume Hood Controller/Monitor

Operation and Service Manual

P/N 6003830, Revision D

March 2012

OTHER COUNTRIES

Sales & Customer Service:

(001 651) 490-2811

Fax:

(001 651) 490-3824

E-MAIL

[email protected]

WEB SITE

www.tsi.com

Copyright

TSI Incorporated / 2010-2012 / All rights reserved.

Part number

6003830/ Revision D / March 2012

LIMITATION OF WARRANTY AND LIABILITY

(effective June 2011)

(For country-specific terms and conditions outside of the USA, please visit www.tsi.com

.)

Seller warrants the goods sold hereunder, under normal use and service as described in the operator's manual, shall be free from defects in workmanship and material for

24 months

, or if less, the length of time specified in the operator's manual, from the date of shipment to the customer. This warranty period is inclusive of any statutory warranty. This limited warranty is subject to the following exclusions and exceptions: a. Hot-wire or hot-film sensors used with research anemometers, and certain other components when indicated in specifications, are warranted for 90 days from the date of shipment; b. Pumps are warranted for hours of operation as set forth in product or operator’s manuals; c. Parts repaired or replaced as a result of repair services are warranted to be free from defects in workmanship and material, under normal use, for 90 days from the date of shipment; d. Seller does not provide any warranty on finished goods manufactured by others or on any fuses, batteries or other consumable materials. Only the original manufacturer's warranty applies; e. Unless specifically authorized in a separate writing by Seller, Seller makes no warranty with respect to, and shall have no liability in connection with, goods which are incorporated into other products or equipment, or which are modified by any person other than Seller.

The foregoing is

IN LIEU OF

all other warranties and is subject to the

LIMITATIONS

stated herein.

NO OTHER

EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR PARTICULAR PURPOSE OR MERCHANTABILITY

IS MADE

.

WITH RESPECT TO SELLER’S BREACH OF THE IMPLIED WARRANTY AGAINST

INFRINGEMENT, SAID WARRANTY IS LIMITED TO CLAIMS OF DIRECT INFRINGEMENT AND

EXCLUDES CLAIMS OF CONTRIBUTORY OR INDUCED INFRINGEMENTS. BUYER’S EXCLUSIVE

REMEDY SHALL BE THE RETURN OF THE PURCHASE PRICE DISCOUNTED FOR REASONABLE WEAR

AND TEAR OR AT SELLER’S OPTION REPLACEMENT OF THE GOODS WITH NON-INFRINGING

GOODS.

TO THE EXTENT PERMITTED BY LAW, THE EXCLUSIVE REMEDY OF THE USER OR BUYER, AND THE

LIMIT OF SELLER'S LIABILITY FOR ANY AND ALL LOSSES, INJURIES, OR DAMAGES CONCERNING THE

GOODS (INCLUDING CLAIMS BASED ON CONTRACT, NEGLIGENCE, TORT, STRICT LIABILITY OR

OTHERWISE) SHALL BE THE RETURN OF GOODS TO SELLER AND THE REFUND OF THE PURCHASE

PRICE, OR, AT THE OPTION OF SELLER, THE REPAIR OR REPLACEMENT OF THE GOODS. IN THE

CASE OF SOFTWARE, SELLER WILL REPAIR OR REPLACE DEFECTIVE SOFTWARE OR IF UNABLE TO

DO SO, WILL REFUND THE PURCHASE PRICE OF THE SOFTWARE. IN NO EVENT SHALL SELLER BE

LIABLE FOR LOST PROFITS OR ANY SPECIAL, CONSEQUENTIAL OR INCIDENTAL DAMAGES. SELLER

SHALL NOT BE RESPONSIBLE FOR INSTALLATION, DISMANTLING OR REINSTALLATION COSTS OR

CHARGES. No Action, regardless of form, may be brought against Seller more than 12 months after a cause of action has accrued. The goods returned under warranty to Seller's factory shall be at Buyer's risk of loss, and will be returned, if at all, at Seller's risk of loss.

Buyer and all users are deemed to have accepted this LIMITATION OF WARRANTY AND LIABILITY, which contains the complete and exclusive limited warranty of Seller. This LIMITATION OF WARRANTY AND

LIABILITY may not be amended, modified or its terms waived, except by writing signed by an Officer of Seller.

SERVICE POLICY

Knowing that inoperative or defective instruments are as detrimental to TSI as they are to our customers, our service policy is designed to give prompt attention to any problems. If any malfunction is discovered, please contact your nearest sales office or representative, or call TSI's Customer Service department at (800) 874-

2811 or (651) 490-2811.

TRADEMARKS

TSI, TSI logo, V

ELOCI

C

ALC

, are trademarks of TSI Incorporated.

BACnet is a trademark of ASHRAE.

Modbus is a registered trademark of Modicon, Inc.

LonWorks is a registered trademark of Echelon

®

Corporation. ii

CONTENTS

HOW TO USE THIS MANUAL ...................................................................................................... 1

Safety Information ................................................................................................ 1

Description of Caution Symbol .......................................................................... 1

Access Code ..................................................................................................... 1

PART ONE ..................................................................................................................................... 3

User Basics .......................................................................................................... 3

The Instrument ..................................................................................................... 3

Face Velocity ..................................................................................................... 3

Exhaust Flow ..................................................................................................... 3

Useful User Information .................................................................................... 3

Operator Panel ..................................................................................................... 4

LED Lights ......................................................................................................... 4

Display Screen .................................................................................................. 5

User Soft Keys (Normal Operating Mode) ........................................................ 5

Quick Keys ........................................................................................................ 5

Operator Keys ................................................................................................... 6

USB Port ........................................................................................................... 6

Alarms................................................................................................................... 6

Visual Alarm ...................................................................................................... 6

Audible Alarm—EMERGENCY key .................................................................. 7

Audible Alarms—All Except Emergency ........................................................... 7

Before Calling TSI ................................................................................................ 7

PART TWO ..................................................................................................................................... 9

Technical Section ................................................................................................. 9

Software Programming ....................................................................................... 10

Programming Keys .......................................................................................... 10

Menu Soft Keys ............................................................................................... 10

Quick Keys ...................................................................................................... 11

Keystroke Procedure ....................................................................................... 11

Programming Example .................................................................................... 12

Hardware Configurations .................................................................................... 13

Model FHC50 Controller Modes ..................................................................... 13

Model FHM10 Fume Hood Monitor Modes ..................................................... 14

Menu and Menu Items ........................................................................................ 15

CONFIGURE MENU ....................................................................................... 17

SETPOINT/ALARM CONSTRAINTS .............................................................. 29

INTERFACE MENU ........................................................................................ 30

NETWORK SETTINGS SUBMENU ................................................................ 30

Calibration .......................................................................................................... 49

Face Velocity Calibration ................................................................................ 49

Sash Position Calibration ................................................................................ 50

Flow Calibration............................................................................................... 51

Sash Opening Calibration ............................................................................... 54 iii

Optimizing Controller Performance .................................................................... 55

Maintenance and Repair Parts ........................................................................... 56

System Component Inspection ....................................................................... 56

Velocity Sensor Cleaning ................................................................................ 56

Replacement Parts .......................................................................................... 57

Troubleshooting Section ..................................................................................... 57

Hardware Test ................................................................................................. 58

Diagnostics Menu ............................................................................................ 58

Troubleshooting Chart ..................................................................................... 62

APPENDIX A ................................................................................................................................ 71

Specifications ..................................................................................................... 71

APPENDIX B ................................................................................................................................ 73

Network Communications .................................................................................. 73

Modbus

®

Communications ................................................................................. 73

Unique to TSI .................................................................................................. 73

Network Points ................................................................................................ 73

N2 Communications Description of Variables ................................................... 77

Description of Variables .................................................................................. 77

Variable Map ................................................................................................... 78

LonWorks

®

Object .............................................................................................. 80

Node Object Network Variables ...................................................................... 80

Fume Hood Controller Object Network Variables ........................................... 80

Description of LON SNVTs ............................................................................. 82

FHC50 BACnet

®

MS/TP Protocol Implementation Conformance Statement..... 83

BACnet

®

MS/TP Object Set ................................................................................ 85

APPENDIX C ................................................................................................................................ 89

Wiring Information .............................................................................................. 89

Back Panel Wiring ........................................................................................... 89

APPENDIX D ................................................................................................................................ 97

Access Codes / Password .................................................................................. 97 iv

How to Use This Manual

The Operation and Service Manual describes how to operate, configure, calibrate, maintain and troubleshoot the Model FHM10 Fume Hood Monitor and Model FHC50 Fume Hood Controller. The

manual is divided into two parts. Part one describes the unit and how to interface with the device. This

section should be read by users, facilities staff, and anyone who requires a basic understanding of how the device operates.

Part two describes the technical aspects of the product which include operation, configuration, calibration, maintenance and troubleshooting. Part two should be read by personnel programming or maintaining the unit.

TSI recommends thoroughly reading this manual before changing any software items.

NOTE:

This operation and service manual assumes that the controller has been properly installed. Refer to the Installation Instructions if there is any question as to whether the controller has been installed properly.

Safety Information

This section gives instructions to promote safe and proper handling of Model FHM10 Fume Hood

Monitors and Model FHC50 Fume Hood Controllers.

There are no user-serviceable parts inside the instrument. Opening the instrument case will void the warranty. Refer all service of the unit to a qualified technician.

Description of Caution Symbol

C a u t i o n

Caution

indicates:

Equipment may be damaged if procedures are not followed.

Improper settings may result in loss of containment.

Important information about unit operation.

Access Code

Model FHM10 Fume Hood Monitors and FHC50 Fume Hood Controllers have an access code to limit unauthorized access to the menu system. The access code can be turned on or off through the

ACCESS CODE

menu item. When the units ship from TSI, they are configured with the access code on.

Refer to Appendix D, Access Codes , for instructions on entering the access code. Entering the access code

enables access to the menu system for a 15-minute period.

1

(This page intentionally left blank)

2

Part One

User Basics

This section is designed to provide a brief but thorough overview of the product installed. These few pages explain the purpose (The Instrument) and the operation (Useful user information, Operator panel, Alarms) of the product. Technical product information is available in Part Two of the manual.

The Instrument

The Model FHM10 Fume Hood Monitor is able to measure and report air flow in fume hoods and other exhaust devices such as snorkels and canopies. The Model FHC50 Fume Hood Controller adds the ability to control airflow to maintain safety and energy efficiency.

There are two main monitor and control strategies that can be used with the Model FHC50 Fume

Hood Controller:

Face Velocity

One of the key components of air flow in a fume hood is adequate face velocity, which is needed to protect fume hood users. An adequate face velocity will help contain contaminants inside of the fume hood.

A fume hood exhaust system produces a negative pressure differential between the fume hood’s interior and the laboratory, causing air to be drawn into the hood. The speed of air entering the fume hood is called the face velocity. The Model FHC50 Fume Hood Controller can be configured to continuously monitor fume hood face velocity by measuring the air velocity across a sensor mounted in the sidewall of the hood.

The sensor and opening in the fume hood are driven by the same pressure differential so the velocity across each is related.

As an alternative to this sidewall sensing methodology, the Model FHC50 can determine average fume hood face velocity by measuring the fume hood exhaust flow and sash area. When measuring face velocity in this fashion, the Model FHC50 must use a venturi valve with feedback to control and measure the exhaust volume. A sash sensor then measures the vertical opening of the fume hood sash. As an option, the

Model FHC50 can use a sidewall sensor to monitor or trim the face velocity when calculated from sash position and exhaust flow rate.

The Model FHC50 controller modulates the exhaust to maintain an adequate face velocity at all times through the fume hood.

Exhaust Flow

Certain devices such as laminar flow benches, canopy hoods and snorkels need to exhaust a certain amount of air to function properly. For these applications, the Model FHC50 can be configured to measure and control the air flow to a constant volume using a venturi valve or a flow station with damper.

Useful User Information

The controller has a green light (normal operation) and red alarm light (low and high alarms). The green light is on when the face velocity and/or exhaust flow is adequate. The red alarm light comes on when the face velocity and/or exhaust flow drops below a safe level, or exceeds a safe level. The display provides additional information depending on the configuration of the unit. Some of the available information includes continuously indicating the actual face velocity, exhaust flow, alarms, and controller status.

User Basics

3

Operator Panel

The Model FHM10 Fume Hood Monitor and Model FHC50 Fume Hood Controller are easy to use. All the information you need to know about face velocity and flow rates is displayed on the Display Interface

Module (DIM). In addition, all configuration, control, and calibration programming is accessible using the soft keys and menus. Specific details about the Model FHC50 controller front panel display and controls

are described on the following pages. The front panel, shown in Figure 1 identifies the important features:

display, keys and lights.

LEDs

Display

Soft Keys

Quick Keys

Mute Key

Emergency Key

USB Port

Figure 1

LED Lights

Green Light

The green light (

NORMAL

) is on when the face velocity and/or exhaust flow is adequate. This light indicates the fume hood is operating safely. If a set point cannot be maintained or an alarm limit has been reached, the green light turns off and the red alarm light turns on.

Yellow Light

The yellow light is on to indicate that the Model FHC50 controller is muted or in setback mode. The

LCD display will read “Setback” or “Mute” at the top of the screen to indicate the meaning of the yellow light. Note that when in Setback mode, the Model FHC50 will also turn on the Red or Green light.

Red Light

The red light is on to indicate an alarm or emergency status. If the red light flashes, then the Model

FHC50 is in emergency mode. If the red light is continually lit, then the Model FHC50 is in an alarm mode. The display screen will also indicate the type of alarm or an emergency message.

4 Part One

Display Screen

The LCD display is highly configurable and can display various critical information including actual face velocity, exhaust flow rate, alarm status, menu options, and error messages. In addition, the LCD display shows various soft key labels that enable user interaction and programming the unit.

When programming the unit, the display will update soft keys and show menus, menu items, and current value of the menu item, depending on the specific programming function being performed.

User Soft Keys (Normal Operating Mode)

There are four soft keys on the front of the unit just below the LCD screen that can be used to interact with the unit.

WARNING:

Pressing these keys will change how the unit functions. Please thoroughly review the manual before using these keys or changing menu items.

NOTE:

The unit can be programmed so that the User Soft Keys will not be displayed

during normal operating mode (see Software Programming section, menu item

DISPL SOFTKEYS ).

The list below contains soft keys that will appear at the display screen during normal operating mode, depending on the state of the unit.

MENU

Provides access to the menus when in the normal operating mode (see

Programming section).

Software

RESET

SETBACK

NORMAL

Resets the alarm light, alarm contacts, and audible alarm when in a latched or nonautomatic reset mode. If an alarm is reset before alarm conditions exited, the monitor or controller will reset the alarm but the alarm mode will be re-entered after the

ALARM DELAY .

Resets the emergency function after the emergency key has been pressed (see

EMERGENCY key).

Clears any displayed error messages.

The SETBACK soft key activates the setback or second control set point. In setback mode, the controller controls at the setback set point, the display indicates

SETBACK , and the yellow light turns on.

The NORMAL soft key will appear if the unit has been placed into Setback mode. If the

NORMAL

soft key is pressed, the controller returns to normal control set point.

Quick Keys

There are two Quick Keys on the front of the unit just below the Soft Keys. The Quick-Keys function as left and right arrows or to increase/decrease values.

User Basics

5

Operator Keys

There are two dedicated keys on the front of the unit that each provides a critical function.

MUTE key

The

MUTE

key silences an audible alarm. The alarm remains silent until the MUTE

TIMEOUT

value has been reached or the unit returns to control set point. Pressing the

MUTE

key twice will permanently mute the alarm.

NOTE

You can program the unit so that the audible alarm cannot be muted (see menu

item

MUTE_BUTTON

).

EMERGENCY key

The

EMERGENCY

key puts the controller into emergency mode. The controller maximizes the exhaust flow and face velocity (if applicable) by modulating the damper or venturi valve to full open position.

Pressing the

EMERGENCY

key will cause ”EMERGENCY” to appear on the display, the red alarm light to flash on and off, and the audible alarm to beep intermittently. To return to control mode press the

EMERGENCY

key or the

RESET

key.

The Model FHM10 monitor and FHC50 controller can be configured so the audible alarm

is silenced during emergency mode. See menu item

EMERGENCY_AUD

.

USB Port

There is a USB port at the bottom of the case. This USB port can be used with TSI’s Fume Hood

Configuration Software.

Alarms

The Model FHC50 controller has visual (red light) and audible alarms to inform you of changing fume hood conditions. The alarm levels (set points) are determined by facilities staff, which could be

Engineering, Industrial Hygiene, or a facilities group depending on how the safety staff is organized.

The alarms, audible and visual, will activate whenever the preset alarm level is reached. The alarms will activate if the face velocity is low or inadequate, high or too great, or when the exhaust airflow is too low or too high (need optional flow device installed). When the fume hood is operating safely, no alarms will sound.

Example: The low alarm is preset to activate when the face velocity falls below 60 ft/min. When the face velocity drops below 60 ft/min, the audible and visual alarms activate. The alarms turn off

(when set to unlatched) when the unit returns to the safe range, which is defined as 20 ft/min greater than alarm set point (80 ft/min).

Visual Alarm

The red light on the front of the unit indicates an alarm condition. The red light is on for all alarm conditions, low alarms, high alarms, and emergency. The light is on continuously in a low or high alarm condition, and flashes in an emergency condition.

6 Part One

Audible Alarm—EMERGENCY key

When the

EMERGENCY

key is pressed, the audible alarm beeps intermittently until the

EMERGENCY

or

RESET

key is pressed terminating the emergency alarm. Pressing the MUTE key will silence the

emergency alarm, although the red LED will continue to flash (if enabled - see menu item

MUTE_KEY )

.

The Model FHM10 monitor and FHC50 controller can be configured so the audible alarm

is silenced during emergency mode. See menu item

EMERGENCY_AUD

.

Audible Alarms—All Except Emergency

The audible alarm is continuously on in all low and high alarm conditions. The audible alarm can be silenced by pressing the

MUTE

key (if enabled - see menu item MUTE_BUTTON )

.

If the audible alarm has been muted, the alarm is silenced for a configurable period of time (see menu item

MUTE TIMEOUT ) or the measurement returns to the safe range. The safe range is 20 ft/min (50 cfm)

above the low alarm set point and 20 ft/min (50 cfm) below the high alarm set point.

The audible and visual alarms can be programmed to either automatically turn off when the unit returns to the safe range or to stay in alarm until the

RESET

key is pressed (See menu item

ALARM_RESET

).

Before Calling TSI

This manual should answer most questions and resolve most problems you may encounter. If you need assistance or further explanation, contact your local TSI representative or TSI. TSI is committed to providing high quality products backed by outstanding service.

Please have the following information available prior to contacting your authorized TSI Manufacturer’s

Representative or TSI:

- Model number of unit*

- Software revision level*

FHC50-____ or FHM10-____

- Facility where unit is installed

* Can be determined by entering the

SELF TEST

item under the Diagnostics menu.

Due to the different Model FHM10 monitors and Model FHC50 controllers available, the above information is needed to accurately answer your questions.

For the name of your local TSI representative or to talk to TSI service personnel, please call TSI at

(800) 874-2811 (U.S. and Canada) or (001 651) 490-2811 (other countries).

Prior to shipping any components to TSI for service or repair, please utilize our convenient Return Material

Authorization (RMA) Form, which is available online at http://service.tsi.com

.

User Basics

7

(This page intentionally left blank)

8 Part One

Part Two

Technical Section

The Fume Hood Controller is ready to use after being properly installed and calibrated. The calibration procedure should take less than

15 minutes. Figure 2 shows the Digital Interface

Module (DIM) which is programmed with a default configuration that can be easily modified to fit your application.

The technical section is separated into six parts that cover all aspects of the unit. Each section is written as independently as possible to minimize flipping back and forth through the manual for an answer.

Figure 2

The Software Programming

section explains the programming keys on the DIM. In addition, the programming sequence is described, which is the same regardless of the menu item being changed. At the end of this section is an example of how to program the DIM.

The Hardware Configurations section covers the different ways the DIM can be configured to

accommodate the hardware and sequence of operation that is required. This section explains how to compare the installed hardware to the necessary settings that are needed.

The Menu and Menu Items section lists all of the software items available to program and change. The

items are grouped by menu which means all set points are in one menu, control signal items in another, etc.

The menu items and all related information is provided including; programming name, description of menu item, range of programmable values, and how the unit shipped from the factory (default value).

The Calibration

section describes the required procedure to calibrate the controller. This section explains how to compare the controller’s velocity reading to a portable thermal anemometer and then adjust the zero and span to establish an accurate calibration. This section also describes how to zero a TSI flow station transducer (if installed).

The Maintenance and Repair Part section covers all routine maintenance of equipment, along with a list of

repair parts.

The Troubleshooting section is split into two areas: mechanical operation of the unit and system

performance. Many external variables will affect how the unit functions so it is critical to first determine if the system is having mechanical problems—i.e., no display on unit, alarms don’t function, damper doesn’t modulate, etc. If no mechanical problems exist, look for performance problems (i.e., doesn’t seem to read correctly, display fluctuates, etc.). The first step is to determine that the system is mechanically operating correctly, followed by modifying the configuration to eliminate the performance problems.

Technical Section

9

Software Programming

Programming the Model FHC50 controller is quick and easy if the programming keys are understood, and the proper keystroke procedure is followed. The programming keys are defined first, followed by the required keystroke procedure. At the end of this section is a programming example.

NOTE:

It is important to note that the unit is always operating (except when checking the

CONTROL

OUTPUT ) when programming. When a menu item value is changed, the new value takes effect

immediately

after saving the change, not when the unit returns to normal operating mode.

This section covers programming the instrument through the keypad and display. If programming

through network communications (see Appendix B ), use the host computer’s procedure. The

changes take place immediately upon saving data in the instrument.

Programming Keys

The four vertical programming soft keys (refer to Figure 3) are used to program or configure the unit to fit

your particular application. Programming the instrument will change how the unit functions, so thoroughly review the menu items to be changed.

Programming Keys

Quick Keys

Figure 3

Menu Soft Keys

The list below contains soft keys that will appear while in the menu structures.

ESC

The

ESC

soft key is used to escape from the current menu or menu item, and will also cancel any change that is currently being made to an item value.

/

The

/

 soft keys are used to scroll through the menus, menu items, and through the range of item values that can be selected. Depending on the item type the values may be numerical, specific properties (on/off), or a list of options.

NOTE:

When programming a numerical menu item, continuously pressing the arrow key will scroll through the values faster than if arrow key is pressed and released.

The

(

ENTER

)

soft key performs three functions.

1.

Provides access to specific menus and submenus.

2.

Provides access to menu items.

3.

Saves data.

10 Part Two

Quick Keys

There are two dedicated adjustment keys on the front of the unit (refer to Figure 3) that become active

when accessing a menu item. These keys change choices of a menu item while that item is highlighted on the display. The left adjustment key will decrease the value of an item, and the right adjustment key will increase the value of an item. If there are no choices available for a particular menu item, or if that menu item is for reference only, the adjustment keys will have no effect.

The item data will be automatically saved when either of the

/

 soft keys are used to highlight a different menu item, or when the

( ENTER )

soft key is pressed. Pressing the

ESC

soft key while the menu item is still highlighted will discard changes and restore the item to its last saved value.

NOTE:

When programming a numerical menu item, continuously pressing a quick adjustment key will scroll through the values faster than if they key is repeatedly pressed and released.

Keystroke Procedure

The keystroke operation is consistent for all menus. The keystroke sequence is the same regardless of the menu item being changed.

1.

Press the

MENU

soft key from the normal operating screen to access the main menu.

2.

Use the

/

 soft keys to scroll through the menu choices until the item you want to access is highlighted.

3.

Press the

( ENTER )

soft key to access chosen menu.

4.

The menu selected is now displayed at the top of the display, followed by a list of available menu items. Use the

/

 soft keys to scroll through the menu items. Scroll through the menu items until desired item is highlighted.

Standard Data Entry Method

5a.

Press the

(

ENTER

)

soft key to access chosen menu item. The top line of display shows menu item selected, and below that shows current menu item value. Use the

/

 soft keys to change menu item value.

6a. Save the new value by pressing the

(

ENTER

)

soft key (pressing the

ESC

soft key will exit out of menu item without saving data). The display will automatically return to the current menu.

Quick Data Entry Method

5b.

With the desired menu item highlighted, use the quick adjustment keys to change menu item value.

6b. Save the new value by pressing the

( ENTER )

soft key OR by using the

/

 soft keys to highlight a different menu item

(pressing the

ESC

soft key will exit out of menu item without saving data).

7.

Press the

ESC

soft key to exit current menu and return to main menu.

8. Press the

ESC

soft key again to return to normal instrument operation.

If more than one item is to be changed, skip steps 7 and 8 until all changes are complete. If more items in the same menu are to be changed, scroll to them after saving the data (step 6a or 6b). If other menus need to be accessed, press the

MENU

key once to access list of menus (the instrument is now at step 2 of the keystroke sequence).

Technical Section

11

Programming Example

The following example demonstrates the keystroke sequence. In this example the low alarm set point will be changed from 80 ft/min to 60 ft/min.

Unit is in normal operation.

0

ft/min

MENU

SETBACK

Press the

MENU

key to gain access to the menus.

The first menu choices are displayed.

Configure

Setpoints

Interface

Calibration

Control

Diagnostics

ESC

MENU

Press the

and

↵ keys to access the SETPOINTS menu.

Press the

 highlighted.

soft key until

Lo Vel Alarm

is

SETPOINTS

Setpoint

Setback

Min Control Pos

Max Control Pos

Lo Vel Alarm

-------

ESC

100 ft/min

60 ft/min

25%

100%

OFF

Standard Data Entry Method

Press the

key to access the

Lo Vel Alarm

screen.

ESC

LO VEL ALARM

60

ft/min

Quick Data Entry Method

Press the Quick-Adjust keys to change the alarm set point. Then press the

or

soft key to save the change.

SETPOINTS

Setpoint

Setback

Min Control Pos

Max Control Pos

Lo Vel Alarm

-------

ESC

100 ft/min

60 ft/min

25%

100%

OFF

Press the

/

 soft keys to change the alarm set point to 60 fpm, then press the

↵ key to save the new set point.

12 Part Two

Hardware Configurations

The Model FHM10 Fume Hood Monitor can be field-configured to monitor face velocity or flow rates, while the Model FHC50 Fume Hood Controller can be field-configured to control face velocity or flow rates. These models feature a configuration wizard to easily select the desired monitor or controller configuration.

The following tables will assist in determining which configuration will need to be programmed into the controller for proper operation. You can also use the tables as a check to ensure that the monitor or controller has been properly configured after changing default settings from the configuration wizard.

Please note that in some applications, there may be a flow sensing device present at the fume hood exhaust

(flow station, venturi valve linear feedback, etc), but which is not used by the fume hood controller. The flow sensing information may be intended only to be received by a room controller for flow tracking purposes. This will not affect the operation of the fume hood controller provided it is configured correctly.

Model FHC50 Controller Modes

SETTING

NORMAL &

SETBACK

CONTROL

TYPES

FACE

VELOCITY

METHOD

1) SIDEWALL

ONLY

Face Velocity Sidewall

Sensor

FLOW

METHOD

N/A

PARAMETERS

DISPLAYED

ANALOG

OUTPUT INPUT 1

Velocity Velocity Night

Setback**

2) SIDEWALL

PRESSFLOW

Face Velocity

With Flow

Limits

Sidewall

Sensor

Pressure-

Based Flow

Station

Velocity No

Change*

Night

Setback**

3) SIDEWALL

LINEARFLOW

Face Velocity

With Flow

Limits

Sidewall

Sensor

4) SIDEWALL

LOMVENTURI

Face Velocity

With Flow

Limits

Sidewall

Sensor

Linear Flow

Station

Velocity No

Change*

No

Change*

Night

Setback**

Night

Setback**

5) SIDEWALL

6PTVENTURI

Face Velocity

With Flow

Limits

Sidewall

Sensor

6) FLOW

PRESSFLOW

Flow N/A

7) FLOW

LINEARFLOW

Flow

8) FLOW

LOMVENTURI

Flow

9) FLOW

6PTVENTURI

Flow

N/A

N/A

N/A

Venturi

Valve With

LOM

Feedback

Velocity

Venturi

Valve (No

Feedback)

Velocity

Pressure-

Based Flow

Station

Flow

Linear Flow

Station

Flow

Venturi

Valve With

LOM

Feedback

Flow

Venturi

Valve (No

Feedback)

Flow

No

Change*

Night

Setback**

Flow Rate Night

Setback**

Flow Rate Night

Setback**

Flow Rate Night

Setback**

Flow Rate Night

Setback**

Technical Section

13

SETTING

10) SASHPOS

LOMVENTURI

NORMAL &

SETBACK

CONTROL

TYPES

Face Velocity

With Flow

Limits

FACE

VELOCITY

METHOD

Sash-

Position

FLOW

METHOD

Venturi

Valve With

LOM

Feedback

PARAMETERS

DISPLAYED

ANALOG

OUTPUT INPUT 1

Velocity No

Change*

Vertical

Sash

Sensor

11) N/A N/A N/A N/A N/A N/A

No

Change*

N/A

Vertical

Sash

Sensor

12) SIDEWALL

SASHCALC-

FLOW

Face Velocity

With Flow

Limits

Sidewall

Sensor

Calculated from measured

Sash

Opening and

Sidewall

Sensor

Velocity

Model FHM10 Fume Hood Monitor Modes

SETTING SIDEWALL

SENSOR

FLOW

METHOD

PARAMETERS

DISPLAYED

ANALOG

OUTPUT

INPUT 1

1) SIDEWALL

VELMONITOR

Enabled

2) PRESSFLOW

MONITOR

Disabled

N/A Velocity

Pressure-

Based Flow

Station

Flow

Linear Flow

Station

Flow

Velocity Night

Setback**

Flow Rate Night

Setback**

3) LINEARFLOW

MONITOR

Disabled Flow Rate Night

Setback**

4) LOMVENTURI

FLOWMONITOR

Disabled Venturi

Valve With

LOM

Feedback

Flow Flow Rate Night

Setback**

* Analog Output is reset if previous setting would now be invalid. Otherwise, Analog Output is not changed.

** Input 1 is changed to Night Setback only if it was previously set to Vertical Sash Sensor.

14 Part Two

Menu and Menu Items

The Model FHM10 monitor and Model FHC50 controller are very versatile devices which can be configured to meet your specific application. This section lists all of the menu items available to program and change (except diagnostics menu). Changing items is accomplished by using the keypad or through communications with the Building Automation System. If you are unfamiliar with the keystroke procedure

please see Software Programming section

for a detailed explanation. This section provides the following information:

Complete list of menus and all menu items.

Gives the menu or programming name.

Defines each menu item’s function; what it does, how it does it, etc.

Gives the range of values that can be programmed.

Gives default item value (how it shipped from factory).

The menus covered in this section are divided into groups of related items to ease programming. As an example all set points are in one menu, alarm information in another, etc. The manual follows the menus as programmed in the controller. The menu items are always grouped by menu and then listed in menu item

order, not alphabetical order. Figure 4 shows the Model FHM10 monitor menu items, while Figure 5

shows the Model FHC50 controller menu items.

CONFIGURE SETPOINTS CALIBRATION

DIAGNOSTICS

**

CONFIG WIZARD

VEL SENSOR

FLOW DEVICE

DISPL SOFTKEYS

DISPLAY MEAS

DISPLAY AVG

DISPLAY UNITS

ALARM RESET

EMERGENCY AUD

MUTE BUTTON

MUTE TIMEOUT

ALARM DELAY

ANALOG OUT TYPE

ANALOG OUT SIG

ANALOG OUT F.S.

RELAYS OUT

RELAY SEL B

INPUT SEL 1

INPUT SEL 2

INPUT SEL 3

NUMBER FORMAT

CONTRAST

ACCESS CODE

LO VEL ALARM

HI VEL ALARM

LO FLOW ALARM

HI FLOW ALARM

SETB LOVEL ALARM

SETB HIVEL ALARM

SETB LOFLO ALARM

SETB HIFLO ALARM

INTERFACE

NET PROTOCOL

NETWORK SETTINGS*

VEL SENSOR ZERO

VEL SENSOR SPAN

CALIBRATE FLOW

VEL SENSOR INPUT

FLOW STATION INPUT

SHOW FLOW

ANALOG OUT

ALARM RELAY A

ALARM RELAY B

IN1 SASH CONTACT

IN2 EMERG PURGE

IN3 NIGHT SETBACK

SELF TEST

RESET SETTINGS

RESET ALL CALIBS

Figure 4. Menu Items – Model FHM10 Monitor

* Items in

NETWORK SETTINGS

submenu depend on

NET PROTOCOL

setting. See

NETWORK SETTINGS item description for details.

**

Menu items located in Troubleshooting section.

Technical Section

15

CONFIGURE

CONFIG WIZARD

NORM CTRL MODE

SETB CTRL MODE

VEL SENSOR

FLOW DEVICE

DISPL SOFTKEYS

DISPLAY MEAS

DISPLAY AVG

DISPLAY UNITS

ALARM RESET

EMERGENCY AUD

MUTE BUTTON

MUTE TIMEOUT

ALARM DELAY

ANALOG OUT TYPE

ANALOG OUT SIG

ANALOG OUT F.S.

RELAYS OUT

RELAY SEL A

RELAY SEL B

INPUT SEL 1

INPUT SEL 2

INPUT SEL 3

NUMBER FORMAT

CONTRAST

SPECIALS MENU

ACCESS CODE

CONTROL

SENSITIVITY

SPEED

CONTROL SIG

KC VALUE

TI VALUE

SETPOINTS

SETPOINT

SETBACK

SETB CNTL POS

MIN CONTROL POS

MAX CONTROL POS

MIN FLOW

MAX FLOW

LO VEL ALARM

HI VEL ALARM

LO FLOW ALARM

HI FLOW ALARM

SETB LOVEL ALARM

SETB HIVEL ALARM

SETB LOFLO ALARM

SETB HIFLO ALARM

HI SASH POS ALARM

INTERFACE

NET PROTOCOL

NETWORK

SETTINGS**

CALIBRATION

VEL SENSOR ZERO

VEL SENSOR SPAN

CALIBRATE FLOW

BALANCE MODE

SASH CAL CLOSED

SASH CAL OPEN

SASH AREA OPEN

SASH AREA CLOSED

BALANCE MODE

*

DESIRED FLOW

FLOW KFACTOR

UNCORRECTED

FLOW

KF USED

FLOW * KF

DIAGNOSTICS

***

CONTROL OUT

VEL SENSOR INPUT

SHOW FACE VEL

FLOW STATION ANALOG INPUT

SHOW FLOW

ANALOG OUT

ALARM RELAY A

ALARM RELAY B

IN1 SASH CONTACT****

SHOW SASH%OPEN

SHOW SASH AREA

IN2 EMERG PURGE****

IN3 NIGHT SETBACK****

SELF TEST

RESET SETTINGS

RESET ALL CALIBS

Figure 5: Menu Items – Model FHC50 Controller

*

**

BALANCE FLOW submenu only appears if flow sensor is enabled ( FLOW DEVICE not set to NONE).

Items in NETWORK SETTINGS submenu depend on NET PROTOCOL setting. See

NETWORK SETTINGS

item description for details.

***

Menu items located in Troubleshooting section.

****

Menu item name depends on INPUT SEL 1 , INPUT SEL 2 and INPUT SEL 3 in CONFIGURE menu.

16 Part Two

CONFIGURE MENU

MENU ITEM

Monitor/

Controller

CONFIGURATION

WIZARD

SOFTWARE

NAME

CONFIG

WIZARD

FHM10 and FHC50

ITEM DESCRIPTION

The

CONFIG WIZARD

item is used to select the desired sequence of operations. Using the CONFIG WIZARD will also configure inputs and outputs for the selected sequence of operations. Refer to the

Hardware Configurations section to see the inputs and outputs.

NOTE:

Use the

CONFIG WIZARD

to change the sequence of operations. Some settings can only be changed through the CONFIG

WIZARD

.

ITEM RANGE

DEFAULT

VALUE

FHC50 Controller:

1) Sidewall only

2) Sidewall PressFlow

3) Sidewall

LinearFlow

4) Sidewall

LOMVenturi

5) Sidewall 6ptVenturi

6) Flow PressFlow

7) Flow LinearFlow

8) Flow LOMVenturi

9) Flow 6ptVenturi

10) SashPos

LOMVenturi

12) Sidewall

SashCalcFlow

FHM10 Monitor

1) Sidewall

VelMonitor

2) PressFlow Monitor

3) LinearFlow Monitor

4) LOMVenturi

FlowMonitor

FHC50 Controller:

1) Sidewall only

FHM10 Monitor

1) Sidewall

VelMonitor

CONFIGURE MENU

MENU ITEM

Monitor/

Controller

NORMAL

CONTROL MODE

SOFTWARE

NAME

NORM CTRL

MODE

FHC50 Only

SETBACK

CONTROL MODE

FHC50 Only

ITEM DESCRIPTION

The NORM CTRL MODE item selects the measurement on which the control function is based during

NORMAL

(Occupied) Mode.

If

VelSidewall

is selected, the controller will control face velocity using a sidewall sensor.

If

VelSashPos

is selected, the controller will control face velocity using a sash sensor and venturi valve with LOM feedback.

If

VelSide+Sash

is selected, the controller will control face velocity using both the sash sensor with LOM feedback and a sidewall sensor.

If

Flow

is selected, the controller will control flow using the flow

device (see menu item

FLOW DEVICE

).

SETB CTRL

MODE

The SETB CTRL MODE item selects the measurement on which the control function is based during

SETBACK

(Unoccupied) Mode.

If

VelSidewall

is selected, the controller will control face velocity using a sidewall sensor.

If

VelSashPos

is selected, the controller will control face velocity using a sash sensor and venturi valve with LOM feedback.

If

VelSide+Sash

is selected, the controller will control face velocity using both the sash sensor with LOM feedback and a sidewall sensor.

If

Flow

is selected, the controller will control flow using the flow

device (see menu item FLOW DEVICE ).

If

FixedPos

is selected, the controller will hold the damper or venturi valve at a fixed percentage at all times during SETBACK Mode, while ignoring the measured face velocity or flow for control purposes. All

SETBACK

-related alarms are still active with this configuration, unless set to OFF.

NOTE

:

To shutdown a fume hood with the Model FHC50 controller, set the SETB CTRL MODE item to FixedPos and the SETBACK

POS

item to 0%.

ITEM RANGE

VelSidewall

VelSashPos

VelSide+Sash

Flow

VelSidewall

VelSashPos

VelSide+Sash

Flow

FixedPos

DEFAULT

VALUE

VelSideWall

VelSideWall

CONFIGURE MENU

MENU ITEM

Monitor/

Controller

VELOCITY

SENSOR

FHM10 and FHC50

SOFTWARE

NAME

ITEM DESCRIPTION

VEL SENSOR

The VEL SENSOR item shows if the velocity sensor input is enabled.

If this item shows

Enabled

, then the controller will look for and use an installed sidewall sensor. If this item shows

Disabled

, the controller will not look for or use an installed sidewall sensor.

FLOW DEVICE

FHM10 and FHC50

FLOW

DEVICE

DISPLAY

SOFTKEYS

FHM10 and FHC50

DISPL

SOFTKEYS

The

FLOW DEVICE

item shows the type of air flow device being used for flow based measurements and control. Choose:

None

no flow device installed, or there is to be no flow information used by the controller.

Lin Flo Sta

when a linear output flow station, typically thermal anemometer based, is installed.

Press Flo Sta

when a TSI flow station with pressure transducer is installed.

LOM Venturi

when a TSI venturi valve with a Linear Output Module with Linear Feedback is installed.

6pt Venturi

when a standard TSI venturi valve (without Linear

Output Module) is installed.

Calculated

when both a sidewall velocity sensor and a sash sensor are installed, and the flow rate is to be calculated using the data obtained from the two sensors (face velocity X sash open area = flow rate)

The

DISPL SOFTKEYS

item selects if the menu and programming soft keys are to be displayed during normal operating mode.

NOTE:

Press left and right quick-keys and right-most soft key simultaneously to gain access to menu system if

DISPL SOFTKEYS is set to OFF.

ITEM RANGE

Enabled

Or

Disabled

FHC50 Controller:

None

Lin Flo Sta

Press Flo Sta

LOM Venturi

6pt Venturi

Calculated

FHM10 Monitor:

None

Lin Flo Sta

Press Flo Sta

LOM Venturi

6pt Venturi

ON

OFF

DEFAULT

VALUE

None

(Read-only value)

None

(Read-only value)

ON

CONFIGURE MENU

MENU ITEM

Monitor/

Controller

DISPLAY

MEASUREMENT

SOFTWARE

NAME

DISPLAY

MEAS

FHM10 and FHC50

DISPLAY

AVERAGE

FHM10 and FHC50

DISPLAY

AVG

DISPLAY UNITS

FHM10 and FHC50

DISPLAY

UNITS

ALARM RESET

FHM10 and FHC50

ALARM

RESET

ITEM DESCRIPTION ITEM RANGE

The DISPLAY MEAS item selects which measurements will be presented on the display during normal operating mode. Use the

DISPLAY UNITS item to choose the units of measure:

Vel

displays only the current face velocity.

Vel

,

Flow

displays both the current face velocity and the current flow.

Flow

displays only the current flow.

None

does not display face velocity or flow during normal operating mode.

The DISPLAY AVG item selects the display’s running average period.

The display-averaging period is the length of time the face velocity has been averaged before being displayed. The

DISPLAY AVG

item value may be set between 0.5 and 40 seconds. The higher the averaging value, the more stable the display.

The DISPLAY UNITS item selects the unit of measure that the controller displays all velocity and flow related menu items: set points, alarms, calibration, etc.

The ALARM RESET item selects how the alarms terminate after the unit returns to control set point.

UNLATCHED

(alarm follow) automatically resets the alarm when the face velocity is 20 ft/min

(50 cfm for flow alarms) greater than the low alarm set point, or

20 ft/min (50 cfm for flow alarms) below the high alarm set point.

LATCHED requires the staff to press the

RESET

key to clear alarms.

The

ALARM RESET

affects the audible alarm, visual alarm, and relay output, which means all are latched or unlatched.

Vel

Vel, Flow

Flow

None

0.5, 1, 2, 3, 5, 10, 20, or

40 seconds ft/min, cfm m/s, m

3

/h m/s, l/s

LATCHED

or

UNLATCHED

DEFAULT

VALUE

Vel

5 seconds ft/min, cfm

UNLATCHED

CONFIGURE MENU

MENU ITEM

Monitor/

Controller

EMERGENCY

AUDIBLE ALARM

SOFTWARE

NAME

EMERGENCY

AUD

FHM10 and FHC50

MUTE BUTTON

FHM10 and FHC50

MUTE

BUTTON

ITEM DESCRIPTION

The EMERGENCY AUD menu item determines of the audible alarm sounds when the controller enters emergency mode. If set to ON, the audible alarm will sound intermittently to indicate an emergency. If set to OFF, the audible alarm will not sound in emergency mode.

NOTE:

The

EMERGENCY AUD

item does not affect messages on the display or operation of the red LED.

The

MUTE BUTTON

item enables the mute button on the front of the controller. Select

ON

if the Audible Alarm can be muted from the keypad. Select

OFF

if the Audible Alarm cannot be muted.

MUTE TIMEOUT

FHM10 and FHC50

MUTE

TIMEOUT

ALARM DELAY

FHM10 and FHC50

ALARM

DELAY

ANALOG OUTPUT

TYPE

FHM10 and FHC50

ANALOG

OUT TYPE

The

MUTE TIMEOUT

item sets the length of time the audible alarm will be silenced if the mute button is pressed ( MUTE BUTTON must be set to

ON

). The

MUTE TIMEOUT

can be set from 1 to 60 minutes or Permanent. If Permanent is selected, the audible alarm will not be activated during the current alarm, but the audible alarm will reset when the alarm clears.

The

ALARM DELAY

item sets the period of time the face velocity

(flow) must be above the high alarm set point or below the low alarm set point before the controller enters alarm mode. Use the ALARM

DELAY

function to avoid momentary, nuisance alarms.

The ANALOG OUT TYPE item selects the measurement that the

ANALOG OUTPUT SIGNAL

will represent.

ANALOG OUTPUT

SIGNAL

FHM10 and FHC50

ANALOG

OUT SIG

The

ANALOG OUT SIG item selects the type of analog

Velocity,

Flow, or %Sash Open

signal output (not control output signal). See

menu item ANALOG OUT TYPE .

ITEM RANGE

ON

or

OFF

ON

OFF

1 to 60 Minutes

Permanent

5 to 120 seconds

FHC50 Controller:

Velocity

Flow rate

%Sash Open

FHM10 Monitor:

Velocity

Flow rate

0 to 10 VDC or

4 to 20 mA

DEFAULT

VALUE

ON

ON

1 Minute

5 seconds

Velocity

0 to 10 VDC

CONFIGURE MENU

MENU ITEM

Monitor/

Controller

ANALOG OUTPUT

FULL SCALE

SOFTWARE

NAME

ANALOG

OUT F.S.

FHM10 and FHC50

RELAY OUTPUT

DIRECTION

FHM10 and FHC50

ITEM DESCRIPTION

The ANALOG OUT F.S. item selects the full scale range that the

ANALOG OUTPUT SIGNAL

will represent. If

ANALOG OUT

TYPE is set to velocity, the ANALOG OUT F.S

. item can be set between 0 to 1000 ft/min. If

ANALOG OUT TYPE

is set to flow rate, the ANALOG OUT F.S.

item can be set between 0 to 10,000 cfm. See

menu item

ANALOG OUT TYPE

. If

ANALOG OUT TYPE

is set to

% Sash Open, the ANALOG OUT F.S

is set to 100%.

RELAYS OUT

The RELAYS OUT item configures the state of the alarm relays. Select

OK=OPEN

for normally open (N.O.) relays that close during alarm conditions. Select

OK=CLOSED

for normally closed (N.C.) relays that open during alarm conditions.

RELAY OUTPUT 1

SELECT

FHM10 and FHC50

RELAY SEL A

NOTE:

Relays will always close during power loss conditions.

The

RELAY SEL A item shows the desired alarm output to be used with

Relay Contact Output 1.

RELAY OUTPUT 2

SELECT

FHM10 and FHC50

RELAY SEL B

The

RELAY SEL B item selects the desired alarm output to be used with

Relay Contact Output 2. The user can select either HIGH ALARM or

SASH OPEN

as the condition that toggles this relay.

ITEM RANGE

0 to 1000 ft/min

or

0 to 10000 cfm

or

100% to 105%

OK = OPEN

or

OK = CLOSED

Low Alarm

High Alarm

or

Sash Open

DEFAULT

VALUE

1000 ft/min

OK = OPEN

None

(Read-only value)

High Alarm

CONFIGURE MENU

MENU ITEM

Monitor/

Controller

INPUT SELECT 1

INPUT SELECT 2

INPUT SELECT 3

FHM10 and FHC50

SOFTWARE

NAME

INPUT SEL 1

INPUT SEL 2

INPUT SEL 3

ITEM DESCRIPTION

The INPUT SEL # item selects the desired input type to be used with the corresponding input terminals.

Night Setb

enables the input to be used with a switch/contact closure to enable night setback mode.

Emerg Purge

enables the input to be used with a switch/contact closure to enable emergency mode.

Sash Contact

enables the input to be used with a switch/contact closure to monitor the fume hood sash height.

Sash Pos V

enables the input to be used with a TSI Vertical Sash

Position sensor. This option applies to

INPUT SEL 1

Only. The

Sash Pos V

option is only available on the FHC50.

NUMBER

FORMAT

FHM10 and FHC50

NUMBER

FORMAT

The NUMBER FORMAT displayed.

menu item selects the way that numbers are

DISPLAY

CONTRAST

FHM10 and FHC50

CONTRAST

The CONTRAST menu item changes the level of contrast on the display screen. Decreasing this value will decrease the contrast, and increasing this value will increase the contrast.

SPECIALS MENU

FHC50 Only

SPECIALS

MENU

The

SPECIALS MENU

item is used to set the Model FHC50 controller for certain custom configuration. Access to the

SPECIALS

MENU item is restricted with a password. Contact TSI for information about these configurations.

ITEM RANGE

Night Setb

Emerg Purge

Sash Contact

Sash Pos V

(INPUT 1 Only)

XX,XXX.YY

XX.XXX,YY

1 to 10

N/A

DEFAULT

VALUE

INPUT SEL 1:

Night Setb

INPUT SEL 2:

Night Setb

INPUT SEL 3:

Emerg Purge

XX,XXX.YY

5

N/A

CONFIGURE MENU

MENU ITEM

Monitor/

Controller

ACCESS CODE

SOFTWARE

NAME

ACCESS

CODE

FHM10 and FHC50

SETPOINTS MENU

MENU ITEM

SOFTWARE

NAME

CONTROL

SETPOINT

SETPOINT

FHC50 Only

ITEM DESCRIPTION

The ACCESS CODE item selects whether an access code (pass code) is required to enter the menu items. The

ACCESS CODE

item prevents unauthorized access to a menu. If the ACCESS CODE is

OFF, no code is required to enter the menu screens. Conversely, if the

ACCESS CODE is ON, a code is required before the menu screens can be entered.

NOTE:

Entering the code when the

ACCESS CODE

item is ON disables the ACCESS CODE for a period of 15 minutes.

ITEM DESCRIPTION

The

SETPOINT

item sets the control set point. The control set point can be for either face velocity or flow control, depending on the setting of menu item NORMAL CONTROL MODE . The FHC50 controller will maintain this set point when normal operating conditions exist.

If NORMAL CONTROL MODE = VelSideWall, VELSashPos or

VelSide+Sash

, enter a face velocity set point between 60 to

980 ft/min.

If

NORMAL CONTROL MODE

=

Flow

, enter a value between 0 and

10,000 cfm.

ITEM RANGE

ON or OFF

ITEM RANGE

60 to 980 ft/min

or

0 to 10000 cfm

DEFAULT

VALUE

ON

DEFAULT

VALUE

100 ft/min

or

0 cfm

SETPOINTS MENU

MENU ITEM

SOFTWARE

NAME

CONTROL

SETBACK

SETPOINT

SETBACK

FHC50 Only

ITEM DESCRIPTION

The SETBACK item sets an alternate control set point, typically used when the laboratory is unoccupied. The

SETBACK

control set point can be for either face velocity or flow control, depending on the setting of menu item

SETBACK CONTROL MODE

. The FHC50 controller will maintain this set point when normal operating conditions exist.

If

SETBACK CONTROL MODE

= VelSideWall, VELSashPos or

VelSide+Sash, enter a value between 60 to 980 ft/min.

If SETBACK CONTROL MODE = Flow, enter a value between 0 and 10,000 cfm.

A SETBACK condition is initiated when the SETBACK key has been pressed, the

SETBACK

contact input has been closed, or a command is received through network communications.

WARNING:

The Model FHC50 may not maintain the fume hood’s containment at low SETBACK face velocities.

SETBACK

CONTROL

POSITION

FHC50 Only

SETBACK

CNTRL POS

The

SETBACK CNTRL POS

item is used to program a setback mode fixed damper or venturi valve position. The menu item

SETBACK CONTROL MODE

must be set to

FIXED POS

to enable the SETBACK CNTRL POS menu item. During SETBACK , the controller will set the control output to the value programmed for

SETBACK CNTRL POS .

NOTE :

To shutdown a fume hood with the Model FHC50 controller, set the

SETB CTRL MODE

item to Fixed Position and the

SETBACK CNTRL POS item to 0%.

WARNING:

The Model FHC50 may not maintain the fume hood’s average face velocity or flow at the setback set point item value when a SETBACK CNTRL POS has been programmed.

The average face velocity or exhaust flow may fall below the setback alarm value; this could result in a setback velocity or flow alarm condition.

ITEM RANGE

0 to 980 ft/min

or

0 to 10000 cfm

0 to 100%

DEFAULT

VALUE

100 ft/min

or

0 cfm

100%

SETPOINTS MENU

MENU ITEM

SOFTWARE

NAME

MINIMUM

DAMPER

POSITION

SETPOINT

MIN

CONTROL

POS

FHC50 Only

ITEM DESCRIPTION

The MIN CONTROL POS item is used to set the minimum damper position. The minimum damper position allows the setting of a minimum airflow through the fume hood

.

When the fume hood exhaust volume needed to maintain the set face velocity is less than the set minimum damper position (typically sash closed), the damper maintains the minimum damper position. Closing the sash further will result in an increase in the face velocity above the control set point which may cause a high alarm.

MAXIMUM

DAMPER

POSITION

SETPOINT

FHC50 Only

MINIMUM FLOW

SETPOINT

FHC50 Only

MAX

CONTROL

POS

MIN FLOW

The MAX CONTROL POS item is used to set the maximum damper position. The maximum damper position allows the setting of a maximum airflow through the fume hood. When the fume hood exhaust volume needed to maintain the set face velocity is greater than the set maximum damper position (typically sash open), the damper maintains the maximum damper position. Opening the sash further will result in a decrease in face velocity, which may cause a low alarm indicating an unsafe hood condition exists.

The

MIN FLOW

item sets the minimum flow set point when the

NORMAL CONTROL MODE is set to VelSidewall, VelSashPos or

VelSide+Sash. When the fume hood exhaust reaches the minimum flow set point, as the fume hood sash is lowered, the controller will modulate the hood exhaust to maintain this minimum flow.

WARNING:

The Model FHC50 may not maintain the fume hoods average face velocity at the SETPOINT item value when a

MINIMUM FLOW has been programmed. The average face velocity may exceed the SETPOINT item value, resulting in a

HIGH ALARM condition.

NOTE:

The MINIMUM FLOW set point must be 50 cfm less than the

MAXIMUM FLOW

set point.

ITEM RANGE

0 to 100%

0 to 100%

OFF, 0 to 10,000 cfm

DEFAULT

VALUE

0% OPEN

100% OPEN

OFF

SETPOINTS MENU

MENU ITEM

SOFTWARE

NAME

MAXIMUM FLOW

SETPOINT

FHC50 Only

ITEM DESCRIPTION

MAX FLOW

The MAX FLOW item sets the maximum flow set point when the

NORMAL CONTROL MODE

is set to VelSidewall, VelSashPos or

VelSide+Sash. When the fume hood exhaust reaches the maximum flow set point, as the fume hood sash is raised, the controller will modulate the hood exhaust damper to maintain this maximum flow.

LOW VELOCITY

ALARM SETPOINT

FHM10 and FHC50

LOW VEL

ALARM

HIGH VELOCITY

ALARM SETPOINT

FHM10 and FHC50

HIGH VEL

ALARM

LOW FLOW

ALARM SETPOINT

FHM10 and FHC50

LO FLOW

ALARM

WARNING :

The Model FHC50 may not maintain the fume hoods average face velocity at the SETPOINT item value when a MAX FLOW has been programmed. The average face velocity may fall below the SETPOINT item value, resulting in a LOW

ALARM condition.

NOTE:

The

MAX FLOW

set point must be 50 cfm greater than the

MIN FLOW set point.

The LOW VEL ALARM item sets the face velocity low alarm set point during Normal mode. A low alarm condition is defined as when the face velocity is less than the low alarm set point during Normal mode.

NOTE:

The LOW VEL ALARM must be at least 20 ft/min less than the

SETPOINT

.

The

HIGH VEL ALARM

item sets the face velocity high alarm set point during Normal mode. A high alarm condition is defined as when the face velocity exceeds the high alarm set point during Normal mode.

NOTE:

The

HIGH VEL ALARM

must be at least 20 ft/min greater than the SETPOINT .

The

LO FLOW ALARM

item sets the low flow alarm set point during

Normal mode. A low flow alarm condition is defined as when the exhaust flow is less than the low flow alarm set point during Normal mode.

NOTE:

The LO FLOW ALARM must be at least 50 cfm less than the

SETPOINT.

ITEM RANGE

OFF, 0 to 10,000 cfm

OFF, 5 to 980 ft/min

OFF, 80 to 1000 ft/min

OFF, 0 to 10000 cfm

DEFAULT

VALUE

OFF

OFF

OFF

OFF

SETPOINTS MENU

MENU ITEM

SOFTWARE

NAME

HIGH FLOW

ALARM SETPOINT

FHM10 and FHC50

SETBACK LOW

VELOCITY ALARM

SETPOINT

FHM10 and FHC50

SETBACK HIGH

VELOCITY ALARM

SETPOINT

FHM10 and FHC50

SETBACK HIGH

FLOW ALARM

SETPOINT

FHM10 and FHC50

HI FLOW

ALARM

SETB LOVEL

ALARM

SETB HIVEL

ALARM

SETBACK LOW

FLOW ALARM

SETPOINT

FHM10 and FHC50

SETB LOFLO

ALARM

SETB HIFLO

ALARM

ITEM DESCRIPTION

The HI FLOW ALARM item sets the high flow alarm set point during

Normal mode. A high flow alarm condition is defined as when the exhaust flow is greater than the high flow alarm set point during

Normal mode.

NOTE:

The

HI FLOW ALARM

must be at least 50 cfm greater than the SETPOINT.

The

SETB LOVEL ALARM

item sets the face velocity low alarm set point during Setback mode. A setback low velocity alarm condition is defined as when the face velocity is less than the setback low velocity alarm set point during Setback mode.

NOTE:

The SETB LOVEL ALARM must be at least 20 ft/min less than the

SETBACK

set point.

The

SETB HIVEL ALARM

item sets the face velocity high alarm set point during Setback mode. A setback high velocity alarm condition is defined as when the face velocity exceeds the setback high velocity alarm set point during Setback mode.

NOTE:

The SETB HIVEL ALARM must be at least 20 ft/min greater than the

SETBACK

set point.

The SETB LOFLO ALARM item sets the low flow alarm set point during

SETBACK

. A setback low flow alarm condition is defined as when the exhaust flow is less than the setback low flow alarm set point during SETBACK .

NOTE:

The

SETB LO FLOW ALARM

must be at least 50 cfm less than the SETPOINT.

The SETB HIFLO ALARM item sets the high flow alarm set point during

SETBACK

. A setback high flow alarm condition is defined as when the exhaust flow is greater than the setback high flow alarm set point during

SETBACK

.

NOTE:

The

SETB HI FLOW ALARM

must be at least 50 cfm greater than the SETPOINT.

ITEM RANGE

OFF, 0 to 10000 cfm

OFF, 5 to 980 ft/min

OFF, 80 to 1000 ft/min

OFF, 0 to 10000 cfm

OFF, 0 to 10000 cfm

DEFAULT

VALUE

OFF

OFF

OFF

OFF

OFF

SETPOINTS MENU

MENU ITEM

SOFTWARE

NAME

HIGH SASH

POSITION ALARM

HI SASH POS

ALARM

FHC50 Only

ITEM DESCRIPTION

The HI SASH POS ALARM item is used to set the position of the high sash alarm.

INPUT SEL 1

, must be set to

SASH POS VERT before setting this item.

NOTE

: The Sash Position Potentiometer must be calibrated before using this menu item.

ITEM RANGE

OFF, 10 to 105%

DEFAULT

VALUE

OFF

SETPOINT/ALARM CONSTRAINTS

There are a number of constraints that prohibit you from incorrectly adjusting the set points. These are as follows: a.

The control SETPOINT and SETBACK set point have a lower limit of 60 ft/min. This is because generally accepted lab practices indicate that fume hood containment is lost below this face velocity. b.

The controller has been designed so that the

LOW ALARM

set point must be set at least 20 ft/min below the control

SETPOINT

when the

FHC50 is set for face velocity control and 50 cfm when the FHC50 is set for flow control. For example, if the control

SETPOINT

is

100 ft/min, the LOW ALARM set point cannot be greater than 80 ft/min. This prevents nuisance alarms from occurring during natural system fluctuations. c.

The controller has been designed so that the

HIGH ALARM

set point must be set at least 20 ft/min above the control

SETPOINT

when the

FHC50 is set for face velocity control and 50 cfm when the FHC50 is set for flow control. For example, if the control SETPOINT is

100 ft/min, the

HIGH ALARM

set point cannot be less than 120 ft/min. This prevents nuisance alarms from occurring during natural system fluctuations. d.

e.

The monitor has been designed so that the

LOW ALARM

set point must be at least 40 fpm below the

HIGH ALARM

set point when the

FHM10 is set for face velocity control and 100 cfm below the HIGH ALARM set point when the FHM10 is set for flow control.

The ALARM RESET item selects how the alarms will terminate when controller returns to the safe range. The face velocity alarms all terminate the same; they are either

LATCHED

or

UNLATCHED

. If

UNLATCHED

is selected, the low alarm automatically turns off when the face velocity exceeds the low face velocity alarm value by 20 ft/min or the low flow alarm value by 50 cfm. Conversely, the high alarm automatically turns off when the face velocity drops 20 ft/min below the high face velocity alarm set point or 50 cfm below the high flow alarm set point. If

LATCHED

is selected, the alarms will not terminate until the

RESET

key is pressed.

INTERFACE MENU

MENU ITEM

NETWORK

PROTOCOL

SOFTWARE

NAME

ITEM DESCRIPTION

NET PROTOCOL

The NET PROTOCOL item selects the communications protocol used to interface with the building management system.

FHM10 and FHC50

NETWORK

ADDRES AND

SETTINGS

FHM10 and FHC50

NETWORK

SETTINGS

The

NETWORK SETTINGS

item enters a sub-menu with settings, such as network address, that are configured for each protocol.

NETWORK SETTINGS SUBMENU

PROTOCOL

Modbus, N2

SOFTWARE

NAME

NETWORK

ADDRESS

FHM10 and FHC50

ITEM DESCRIPTION

The

NETWORK ADDRESS

item sets the main network address of the fume hood controller. Each unit on the network must have its own unique address.

BACnet

FHM10 and FHC50

BACnet

FHM10 and FHC50

BACnet

FHM10 and FHC50

MAC ADDRESS

The

MAC ADDRESS

item sets the main network address of the fume hood controller. Each unit on the network must have its own unique address.

MAC ID The MAC ID item combines with the MAC ADDRESS to form the Device ID. The Device ID is the 3 digits of the

MAC ID

with the 3 digits of the MAC ADDRESS . For example, if the MAC ID is 865 and the MAC ADDRESS is 1, then the Device ID is

865001.

AUTO BAUD When the AUTO BAUD item is selected, the FHC50 will automatically set its baud rate for BACnet MS/TP communications.

ITEM RANGE

Modbus

®

N2

LonWorks

®*

BACnet

®

*

ITEM RANGE

1 to 247

1 to 127

1 to 999

DEFAULT

VALUE

MODBUS

DEFAULT

VALUE

1

1

1

NETWORK SETTINGS SUBMENU

PROTOCOL

LON

SOFTWARE

NAME

SERVICE PIN

FHM10 and FHC50

ITEM DESCRIPTION

When the SERVICE PIN option is selected, the Model FHC50 sends a broadcast message containing its Neuron ID and program

ID. This is required to install the Model FHC50 on the

LonWorks

®

network, or to reinstall the Model FHC50 after using the GO UNCONFIGURED command.

LON

FHM10 and FHC50

GO

UNCONFIGURED

Selecting the GO UNCONFIGURED option resets the Model

FHC50 controller’s authentication key. This is required in the event a foreign network tool inadvertently acquires a Model

FHC50 and installs it with network management authentication.

The Model FHC50 controller’s owner will then be unable to reclaim the Model FHC50 over the network.

ITEM RANGE

DEFAULT

VALUE

CALIBRATION MENU

MENU ITEM

SOFTWARE

NAME

VELOCITY

SENSOR ZERO

VEL SENSOR

ZERO

FHM10 and FHC50

VEL SENSOR

SPAN

FHM10 and FHC50

ITEM DESCRIPTION

VEL SENSOR

SPAN

The VEL SENSOR ZERO item is used to calibrate the Sidewall velocity sensor at zero flow.

A sensor zero should be established prior to adjusting the sensor span

(see Calibration section following menu item listing).

NOTE

: The menu item

VEL SENSOR

under the

CONFIGURE menu must be set to ENABLED , by choosing an appropriate setting in the CONTROL WIZARD , to activate the VEL SENSOR ZERO function.

The VEL SENSOR SPAN item is used to calibrate the Sidewall velocity sensor to match the fume hood average face velocity. The average face velocity is measured by traversing the fume hood face

with a portable air velocity meter (see Calibration section following

menu item listing).

A velocity sensor zero should be established prior to adjusting the

velocity sensor span (see Calibration section following menu item

listing).

CALIBRATE FLOW

FHM10 and

FHC50

NOTE

: The menu item VEL SENSOR under the CONFIGURE menu must be set to

ENABLED

, by choosing an appropriate setting in the CONTROL WIZARD , to activate the VEL SENSOR ZERO function.

CALIBRATE

FLOW

The

CALIBRATE FLOW

item is used to enter a

CALIBRATE FLOW sub-menu that is specific to the FLOW DEVICE that is selected (see

Calibrate Flow section following menu item listing).

NOTE

: The

CALIBRATE FLOW

menu item will not appear if the

FLOW DEVICE

under the

CONFIGURE

menu has been set to

NONE.

ITEM RANGE

NONE

DEFAULT

VALUE

Unit needs to be calibrated upon initial installation

NONE

NONE

Unit needs to be calibrated upon initial installation

Unit needs to be calibrated upon initial installation

CALIBRATION MENU

MENU ITEM

SOFTWARE

NAME

BALANCE MODE BALANCE

MODE

FHC50 Only

ITEM DESCRIPTION

The BALANCE MODE item is used to enter a BALANCE MODE sub-menu. After a flow device has been calibrated, the

BALANCE

MODE screen can be used to compare the Measured Flow against the

Actual Flow as determined by a pitot tube traverse.

NOTE

: The

CALIBRATE FLOW

submenu must be completed before entering the BALANCE MODE submenu.

SASH CLOSED

POSITION

CALIBRATION

FHC50 Only

SASH CAL

CLOSED

The

SASH CAL CLOSED

item is used to record sash position of the fume hood. This is determined in one of two ways:

1.

If a Vertical Sash Position Sensor is being used, this menu item will record the physical position of the Potentiometer with the sash closed.

2.

If there is no Vertical Sash Position sensor, the controller will use both the face velocity and flow information in the sash closed position to calibrate the sash % open equation.

Upon entering this menu item, the display will read “Lower Sash, then

Press Enter.” Make sure the sash is lowered completely, and then press the

Enter

key.

This menu item will timeout after a period of one hour if the

Enter

key is not pressed. No information will be saved if timeout occurs.

This menu item will not appear if the controller is not configured to accept a sash sensor or flow measurement with sidewall sensor.

ITEM RANGE

NONE

NONE

DEFAULT

VALUE

N/A

Unit needs to be calibrated upon initial installation

CALIBRATION MENU

MENU ITEM

SOFTWARE

NAME

SASH OPEN

POSITION

CALIBRATION

FHC50 Only

SASH CAL

OPEN

CALIBRATE FLOW SUBMENU

PRESSURE FLOW STATION

MENU ITEM

SOFTWARE

NAME

FLOW DEVICE

SELECTED

FHM10 and FHC50

FLOW

DEVCE =

ITEM DESCRIPTION

The SASH CAL OPEN item is used to record sash position of the fume hood. This is determined in one of two ways:

1.

If a Vertical Sash Position Sensor is being used, this menu item will record the physical position of the Potentiometer with the sash open.

2.

If there is no Vertical Sash Position sensor, then the controller will use both the face velocity and flow information in the sash open position to calibrate the sash % open equation.

Upon entering this menu item, the display will read “Raise Sash, then

Press Enter.” Make sure the sash is raised, and then press the

Enter

key.

This menu item will timeout after a period of one hour if the

Enter

key is not pressed. No information will be saved if timeout occurs.

This menu item will not appear if the controller is not configured to accept a sash sensor or flow measurement with sidewall sensor.

This item displays the

ITEM DESCRIPTION

FLOW DEVICE through the CONFIG WIZARD item.

that was previously selected

RESET FLOW

CALIBRATION

FHM10 and FHC50

FLOW

RESET CAL

The

RESET CAL

menu item zeroes out the flow calibration adjustments. When this menu item is entered, the controller will prompt the user to verify that they want to do this by displaying the message

“Are You Sure.” Entering YES resets the flow calibration factors for this flow device to defaults and shows the message “Changes Saved.”

Entering NO will cancel the reset and show the message “Changes

Not Saved.”

ITEM RANGE

NONE

DEFAULT

VALUE

Unit needs to be calibrated upon initial installation

ITEM RANGE

Lin Flo Sta

Press Flo Sta

LOM Venturi

6pt Venturi

Calculated

NONE

DEFAULT

VALUE

Press Flo Sta

(Read-only value)

CALIBRATE FLOW SUBMENU

PRESSURE FLOW STATION

MENU ITEM

SOFTWARE

NAME

FLOW STATION

DUCT AREA

FHM10 and FHC50

FLO STA

AREA

ITEM DESCRIPTION

The

FLO STA AREA

item is used to program the cross sectional area of the duct where the flow station is mounted. Since the flow station is used to measure duct velocity, the

FLO STA AREA

is necessary to calculate the duct air flow.

NOTE

: The DIM does not compute duct area. The area must be first calculated and then entered into the unit.

Use the following equations to calculate the duct area (in ft

2

)

For

round

ducts

For

rectangular

ducts

FLOW STATION

PRESSURE FULL

SCALE

FHM10 and FHC50

FLOW STATION

PRESSURE ZERO

FHM10 and

FHC50

FLO STA

PRESS FS

FLO STA

PRESS

ZERO

WARNING:

If the proper FLO STA AREA is not programmed into the Model FHC50, the flow measurement will be incorrect.

Thus, all the other information that uses the flow measurement, such as the flow alarms and percent sash open, will also be incorrect.

The

FLO STA PRESS FS

menu item allows the user to select the maximum range of the pressure transducer used with the flow station.

The

FLO STA PRESS ZERO

item is used to calibrate the zero in the pressure transducer. See Calibration section for the procedure to zero the flow station.

ITEM RANGE

0 to50.00 ft

2

(0 to 4.6450 m

2

)

DEFAULT

VALUE

0.00 ft

2

(0.0000 m

2

)

0.10 inH

2

O

0.25 inH

2

O

0.50 inH

2

O

1.0 inH

2

O

NONE

1.0 inH

2

O

CALIBRATE FLOW SUBMENU

PRESSURE FLOW STATION

MENU ITEM

SOFTWARE

NAME

FLOW STATION

OUTPUT RANGE

FHM10 and FHC50

FLO STA FS

V

ITEM DESCRIPTION

The

FLO STA FS V

item is used to set the voltage signal output range of the pressure transducer. Set this item to match the pressure transducer used.

NOTE

: If a pressure transducer with a 1-5 V output is used, select 0 to

5V. If a pressure transducer with a 2-10 V output is used, select 0 to 10V

FLOW STATION

LOW CAL

FHM10 and FHC50

FLO STA LO

CAL

The FLO STA LO CAL menu item enters the FLO STA LO CAL

Submenu.

FLOW STATION

HIGH CAL

FHM10 and

FHC50

FLO STA HI

CAL

The FLO STA HI CAL menu item enters the FLO STA HI CAL

Submenu.

FLOW K FACTOR

FHM10 and

FHC50

FLOW

KFACTOR

The K FACTOR menu item sets the “K” factor for the flow signal. The flow signal is multiplied by the K FACTOR so that the flow measurement matches the actual flow, determined with a pitot tube traverse.

NOTE:

FLOW K FACTOR modifies the entire range of the calibrated flow, not just a single point.

MENU ITEM

CALIBRATE FLOW SUBMENU

LINEAR FLOW STATION ONLY

SOFTWARE

NAME

FLOW DEVICE

SELECTED

FLOW

DEVCE =

ITEM DESCRIPTION

This item displays the FLOW DEVICE that was previously selected through the

CONFIG WIZARD

item.

FHM10 and

FHC50

ITEM RANGE

0 to 5V, 0 to 10V

See FLO STA LO

CAL

Menu

See FLO STA HI CAL

Menu

0.01 to 10.00

ITEM RANGE

Lin Flo Sta

Press Flo Sta

LOM Venturi

6pt Venturi

Calculated

1.00

DEFAULT

VALUE

0 to 10V

DEFAULT

VALUE

Lin Flo Sta

(Read-only value)

CALIBRATE FLOW SUBMENU

LINEAR FLOW STATION ONLY

MENU ITEM

SOFTWARE

NAME

RESET FLOW

CALIBRATION

FHM10 and

FHC50

FLOW

RESET CAL

ITEM DESCRIPTION

The

RESET CAL

menu item zeroes out the flow calibration adjustments. When this menu item is entered, the controller will prompt the user to verify that they want to do this by displaying the message

“Are You Sure.” Entering YES resets the flow calibration factors for this flow device to defaults and shows the message “Changes Saved.”

Entering NO will cancel the reset and show the message “Changes Not

Saved.”

FLOW STATION

DUCT AREA

FHM10 and

FHC50

FLO STA

AREA

The

FLO STA AREA

item is used to program the cross sectional area of the duct where the flow station is mounted. Since the flow station is used to measure duct velocity, the

FLO STA AREA

is necessary to calculate the duct air flow.

NOTE

: The DIM does not compute duct area. The area must be first calculated and then entered into the unit.

Use the following equations to calculate the duct area (in ft

2

)

For

round

ducts

For

rectangular

ducts

FLOW STATION

TOP VELOCITY

FHM10 and

FHC50

FLO STA

TOP VEL

WARNING:

If the proper FLO STA AREA is not programmed into the Model FHC50, the flow measurement will be incorrect.

Thus, all the other information that uses the flow measurement, such as the flow alarms and percent sash open, will also be incorrect.

The TOP VELOCITY item is used to input the maximum velocity of a linear flow station output. A

TOP VELOCITY

must be input for the linear flow station to operate.

ITEM RANGE

NONE

0 to50.00 ft

2

(0 to 4.6450 m

2

)

0 to 10,000 ft/min

(0 to 50.8 m/s)

DEFAULT

VALUE

0.00 ft

2

(0.0000 m

2

)

0 ft/min

(0 m/s)

CALIBRATE FLOW SUBMENU

LINEAR FLOW STATION ONLY

MENU ITEM

SOFTWARE

NAME

FLOW STATION

OUTPUT RANGE

FLO STA

FS V

ITEM DESCRIPTION

The

FLO STA FS V

item is used to set the voltage signal output range of the pressure transducer. Set this item to match the pressure transducer used.

FHM10 and

FHC50

FLOW K FACTOR

FHM10 and

FHC50

FLOW

KFACTOR

The K FACTOR menu item sets the “K” factor for the flow signal.

The flow signal is multiplied by the K FACTOR so that the flow measurement matches the actual flow, determined with a pitot tube traverse.

CALIBRATE FLOW SUBMENU

LOM VENTURI VALVE ONLY

MENU ITEM

SOFTWARE

NAME

NOTE:

FLOW K FACTOR modifies the entire range of the calibrated flow, not just a single point.

ITEM DESCRIPTION

FLOW DEVICE

SELECTED

FLOW

DEVCE =

This item displays the FLOW DEVICE that was previously selected through the

CONFIG WIZARD

item.

FHM10 and FHC50

RESET FLOW

CALIBRATION

FHM10 and FHC50

FLOW

RESET CAL

The

RESET CAL

menu item zeroes out the flow calibration adjustments. When this menu item is entered, the controller will prompt the user to verify that they want to do this by displaying the message

“Are You Sure.” Entering YES resets the flow calibration factors for this flow device to defaults and shows the message “Changes Saved.”

Entering NO will cancel the reset and show the message “Changes

Not Saved.”

WARNING:

Monitor and/or controller alarm functions will not be maintained after resetting flow calibration. Immediately recalibrate monitor or controller after resetting flow calibration.

ITEM RANGE

0 to 5V, 0 to 10V

0.01 to 10.00

ITEM RANGE

Lin Flo Sta

Press Flo Sta

LOM Venturi

6pt Venturi

Calculated

NONE

DEFAULT

VALUE

0 to 10V

1.00

DEFAULT

VALUE

LOM Venturi

(Read-only value)

CALIBRATE FLOW SUBMENU

LOM VENTURI VALVE ONLY

MENU ITEM

SOFTWARE

NAME

MINIMUM FLOW

FHM10 and FHC50

VENTURI LF

MIN FLOW

ITEM DESCRIPTION

The

VENTURI LF MIN FLOW

item sets the flow rate through the venturi valve when it is fully closed. The display will indicate a volumetric flow rate. Adjust the displayed value to match the flow through the venturi valve.

MAXIMUM FLOW

FHM10 and FHC50

FLOW K FACTOR

FHM10 and FHC50

VENTURI LF

MAX FLOW

FLOW

KFACTOR

NOTE:

The flow information can be obtained from the label on the

TSI Venturi Valve or by closing the venturi valve using the

CONTROL

OUT item in the DIAGNOSTICS menu and performing a pitot tube traverse of the duct.

The VENTURI LF MIN FLOW menu item must be completed before moving on to the

VENTURI LF MAX FLOW menu item.

The VENTURI LF MAX FLOW item sets the flow rate through the venturi valve when it is fully open. The display will indicate a volumetric flow rate. Adjust the displayed value to match the flow through the venturi valve.

NOTE:

The flow information can be obtained from the label on the

TSI Venturi Valve or by opening the venturi valve using the

CONTROL OUT

item in the DIAGNOSTICS menu and performing a pitot tube traverse of the duct.

The

VENTURI LF MIN FLOW

menu item must be completed before moving on to the VENTURI LF MAX FLOW menu item.

The

K FACTOR

menu item sets the “K” factor for the flow signal. The flow signal is multiplied by the K FACTOR so that the flow measurement matches the actual flow, determined with a pitot tube traverse.

NOTE

: FLOW K FACTOR modifies the entire range of the calibrated flow, not just a single point.

ITEM RANGE

0 to 10000 cfm

0 to 10000 cfm

0.01 to 10.00

DEFAULT

VALUE

0 cfm

0 cfm

1.00

CALIBRATE FLOW SUBMENU

6PT VENTURI VALVE ONLY

MENU ITEM

SOFTWARE

NAME

FLOW DEVICE

SELECTED

ITEM DESCRIPTION

FLOW DEVCE =

This item displays the

FLOW DEVICE

that was previously selected through the CONFIG WIZARD item.

FHC50 Only

RESET FLOW

CALIBRATION

FHC50 Only

FLOW RESET

CAL

VENTURI VALVE

POSITION 1 FLOW

VENTURI PT1

FHC50 Only

The RESET CAL menu item zeroes out the flow calibration adjustments. When this menu item is entered, the controller will prompt the user to verify that they want to do this by displaying the message “Are You Sure.” Entering YES resets the flow calibration factors for this flow device to defaults and shows the message “Changes Saved.” Entering NO will cancel the reset and show the message “Changes Not Saved.”

WARNING:

Controller alarm functions will not be maintained after resetting flow calibration. Immediately recalibrate controller after resetting flow calibration.

The

VENTURI PT1 item is used to calibrate a venturi valve without feedback. When this item is entered, the display will indicate a volumetric flow rate. Adjust the displayed value to match the flow through the venturi valve when the venturi valve is at the 0% OPEN position.

NOTE:

The flow information can be obtained through a direct

flow measurement (i.e. duct traverse) after using the CONTROL

OUT

item to set the damper to 0% Open or from the label on the

TSI Venturi Valve.

The

VENTURI PT1

menu item must be completed before moving on to the

VENTURI PT2

menu item.

ITEM RANGE

Lin Flo Sta

Press Flo Sta

LOM Venturi

6pt Venturi

Calculated

NONE

DEFAULT

VALUE

6Pt Venturi

(Read-only value)

0 to 10000 cfm 0 cfm

CALIBRATE FLOW SUBMENU

6PT VENTURI VALVE ONLY

MENU ITEM

SOFTWARE

NAME

VENTURI VALVE

POSITION 2 FLOW

VENTURI PT2

FHC50 Only

VENTURI VALVE

POSITION 3 FLOW

FHC50 Only

VENTURI PT3

ITEM DESCRIPTION

The

VENTURI PT2 item is used to calibrate a venturi valve without feedback. When this item is entered, the display will indicate a volumetric flow rate. Adjust the displayed value to match the flow through the venturi valve when the venturi valve is at the 20% OPEN position.

NOTE:

The flow information can be obtained through a direct

flow measurement (i.e. duct traverse) after using the CONTROL

OUT

item to set the damper to 20% Open or from the label on the

TSI Venturi Valve.

The

VENTURI PT2

menu item must be completed before moving on to the VENTURI PT3 menu item.

The

VENTURI PT3 item is used to calibrate a venturi valve without feedback. When this item is entered, the display will indicate a volumetric flow rate. Adjust the displayed value to match the flow through the venturi valve when the venturi valve is at the 40% OPEN position.

NOTE:

The flow information can be obtained through a direct

flow measurement (i.e. duct traverse) after using the CONTROL

OUT

item to set the damper to 40% Open or from the label on the

TSI Venturi Valve.

The

VENTURI PT3

menu item must be completed before moving on to the VENTURI PT4 menu item.

ITEM RANGE

0 to 10000 cfm

0 to 10000 cfm

DEFAULT

VALUE

0 cfm

0 cfm

CALIBRATE FLOW SUBMENU

6PT VENTURI VALVE ONLY

MENU ITEM

SOFTWARE

NAME

VENTURI VALVE

POSITION 4 FLOW

VENTURI PT4

FHC50 Only

VENTURI VALVE

POSITION 5 FLOW

FHC50 Only

VENTURI PT5

ITEM DESCRIPTION

The

VENTURI PT4 item is used to calibrate a venturi valve without feedback. When this item is entered, the display will indicate a volumetric flow rate. Adjust the displayed value to match the flow through the venturi valve when the venturi valve is at the 60% OPEN position.

NOTE:

The flow information can be obtained through a direct

flow measurement (i.e. duct traverse) after using the CONTROL

OUT

item to set the damper to 60% Open or from the label on the

TSI Venturi Valve.

The

VENTURI PT4

menu item must be completed before moving on to the VENTURI PT5 menu item.

The

VENTURI PT5 item is used to calibrate a venturi valve without feedback. When this item is entered, the display will indicate a volumetric flow rate. Adjust the displayed value to match the flow through the venturi valve when the venturi valve is at the 80% OPEN position.

NOTE:

The flow information can be obtained through a direct

flow measurement (i.e. duct traverse) after using the CONTROL

OUT

item to set the damper to 80% Open or from the label on the

TSI Venturi Valve.

The

VENTURI PT5

menu item must be completed before moving on to the VENTURI PT6 menu item.

ITEM RANGE

0 to 10000 cfm

0 to 10000 cfm

DEFAULT

VALUE

0 cfm

0 cfm

CALIBRATE FLOW SUBMENU

6PT VENTURI VALVE ONLY

MENU ITEM

SOFTWARE

NAME

VENTURI VALVE

POSITION 6 FLOW

VENTURI PT6

FHC50 Only

ITEM DESCRIPTION

The

VENTURI PT6 item is used to calibrate a venturi valve without feedback. When this item is entered, the display will indicate a volumetric flow rate. Adjust the displayed value to match the flow through the venturi valve when the venturi valve is at the 100% OPEN position.

NOTE:

The flow information can be obtained through a direct

flow measurement (i.e., duct traverse) after using the

CONTROL

OUT item to set the damper to 100% Open or from the label on

the TSI Venturi Valve.

FLOW K FACTOR

FHC50 Only

FLOW

KFACTOR

The

K FACTOR

menu item sets the “K” factor for the flow signal. The flow signal is multiplied by the K FACTOR so that the flow measurement matches the actual flow, determined with a pitot tube traverse.

NOTE:

FLOW K FACTOR modifies the entire range of the calibrated flow, not just a single point.

ITEM RANGE

0 to 10000 cfm

0.01 to 10.00 1.00

DEFAULT

VALUE

0 cfm

CALIBRATE FLOW SUBMENU

CALCULATED FLOW ONLY

MENU ITEM

SOFTWARE

NAME

FLOW DEVICE

SELECTED

ITEM DESCRIPTION

FLOW DEVCE =

This item displays the

FLOW DEVICE

that was previously selected through the CONFIG WIZARD item.

FHC50 Only

RESET FLOW

CALIBRATION

FHC50 Only

FLOW K FACTOR

FHC50 Only

FLOW RESET

CAL

FLOW

KFACTOR

The RESET CAL menu item zeroes out the flow calibration adjustments. When this menu item is entered, the controller will prompt the user to verify that they want to do this by displaying the message “Are You Sure.” Entering YES resets the flow calibration factors for this flow device to defaults and shows the message “Changes Saved.” Entering NO will cancel the reset and show the message “Changes Not Saved.”

WARNING:

Controller alarm functions will not be maintained after resetting flow calibration. Immediately recalibrate controller after resetting flow calibration.

The

K FACTOR

menu item sets the “K” factor for the flow signal. The flow signal is multiplied by the

K FACTOR

so that the flow measurement matches the actual flow, determined with a pitot tube traverse.

NOTE

: FLOW K FACTOR modifies the entire range of the calibrated flow, not just a single point.

ITEM RANGE

Lin Flo Sta

Press Flo Sta

LOM Venturi

6pt Venturi

Calculated

NONE

DEFAULT

VALUE

Calculated

(Read-only value)

0.01 to 10.00 1.00

BALANCE MODE SUBMENU

MENU ITEM

SOFTWARE

NAME

DESIRED FLOW

FHC50 Only

ITEM DESCRIPTION

DESIRED FLOW The DESIRED FLOW item is used to set and hold the controller at a desired flow to enable a balancing technician to verify flow through the fume hood.

BALANCE MODE

K FACTOR

FHC50 Only

UNCORRECTED

FLOW

FHC50 Only

FLOW

KFACTOR

The FLOW KFACTOR item is used to adjust the measured flow to match the actual flow measured by the balancing technician.

UNCORRECTED

FLOW

NOTE

: Changing the

FLOW KFACTOR

item also adjusts the

FLOW KFACTOR item stored under the CALIBRATE FLOW submenu.

The

UNCORRECTED FLOW

item displays the measured flow without applying a K Factor. This item is for reference only.

K FACTOR USED

FHC50 Only

KF USED

The

KF USED

item is used to display the K Factor currently being used to adjust the flow. This value is for reference only, and will update when

BAL MODE Kf

is adjusted.

CORRECTED

FLOW

FHC50 Only

FLOW * Kf The FLOW*Kf item is used to display the corrected flow, which multiplies the uncorrected flow by the K Factor currently being used. This value is for reference only, and will update when BAL

MODE Kf is adjusted.

ITEM RANGE

0 to 10000 cfm

0.01 to 10.00

0 to 10000 cfm

0.01 to 10.00

0 to 10000 cfm

DEFAULT

VALUE

0

1.00

NONE

(Read-only value)

NONE

(Read-only value)

NONE

(Read-only value)

CONTROL MENU

MENU ITEM

SENSITIVITY

SOFTWARE

NAME

SENSITIVITY

FHC50 Only

SPEED

ITEM DESCRIPTION

The SENSITIVITY item selects the integral dead band. The integral dead band determines when the controller uses integral control (slow control), and when the controller enters PID control

(fast control).

Each % of SENSITIVITY represents 1 ft/min (5 cfm) that the face velocity (flow rate) must be away from set point before the

FHC50 controller enters PID control (fast control). For example, if the SENSITIVITY is set to 80% and the set point is 100 fpm

(500 cfm), the face velocity must drop below 80 fpm (400 cfm) or rise above 120 fpm (600 cfm) for the controller to enter PID control.

WARNING:

Controller may hunt if SENSITIVITY is set too high, resulting in poor control and loss of containment.

The SPEED item selects the control output speed. The greater the

SPEED

setting, the faster the control output.

SPEED

FHC50 Only

CONTROL

SIGNAL

FHC50 Only

CONTROL SIG

The

CONTROL SIG

item determines the control signal’s output direction. As an example: if the control system closes the exhaust damper instead of opening the damper, this option will reverse the control signal to now open the damper.

ITEM RANGE

10% to 100%

10% to 100%

DIRECT OR

REVERSE

DEFAULT

VALUE

80%

80%

DIRECT

CONTROL MENU

MENU ITEM

Kc VALUE

Ti VALUE

SOFTWARE

NAME

Kc VALUE

Ti VALUE

FHC50 Only

ITEM DESCRIPTION

The Kc VALUE item changes the gain control coefficient. When this item is entered, a value for

Kc

is indicated on the display. If the controller is not controlling correctly (hunting, oscillating, or controlling slowly) the

Kc VALUE

control coefficient may need adjusting. Decreasing

Kc

will slow the control system down making it more stable.

The Ti VALUE item changes the integral control coefficient.

When this item is entered, a value for

Ti

is indicated on the display. If the controller is not controlling correctly, the unit may have an inappropriate

Ti VALUE

control coefficient. Increasing

Ti will slow the control system down making it more stable.

WARNING

: The Kc VALUE and Ti VALUE items provide you with the ability to manually change the PI control loop variables.

DO NOT CHANGE THESE VALUES UNLESS

YOU HAVE A THOROUGH UNDERSTANDING OF PID

CONTROL LOOPS. CONTACT TSI FOR ASSISTANCE

PRIOR TO CHANGING ANY VALUES

. Incorrectly changing a value will result in poor or non-existent control.

Suggestion

: Before changing

Kc or Ti

, change the

SPEED

or adjust the SENSITIVITY to try to eliminate the problem.

ITEM RANGE

Kc = 0 to 1000

Ti = 0-1000

The range of values is very large. Poor control may occur if values are more than twice or less than 1/2 the default value

DEFAULT

VALUE

Kc = 100

Ti = 110

(This page intentionally left blank)

48 Part Two

Calibration

The calibration section explains how to calibrate the controller and how to zero a TSI flow station pressure transducer (optional). The Fume Hood Monitor or Controller must be calibrated, after being installed on the fume hood, to provide accurate indication of fume hood face velocity and/or exhaust flow. The FHM10

Monitor and FHC50 Controller will warn the user with a display message if it has not been calibrated.

NOTE:

This section assumes that the appropriate sensor has been correctly installed. Inaccurate readings may be detected if sensor is not installed correctly. Review the Installation Instructions and verify that the sensor is installed correctly (usually only a problem on initial set up).

The following items are needed to calibrate a Model FHM10 Fume Hood Monitor or Model FHC50 Fume

Hood Controller:

Masking tape

Tape measure

Portable Air Velocity Meter such as TSI V

ELOCI

C

ALC

®

Model 9545 or Model 9515.

WARNING:

The controller is disabled during calibration. Containment may not be maintained.

To begin the calibration process, enter

CALIBRATION

menu (see Software Programming if not familiar

with keystroke procedure).

Face Velocity Calibration

Face velocity can be controlled using either a sidewall sensor or sash-position sensor with a venturi valve.

Sidewall Velocity Sensor—Sensor Zero

1.

Select VEL SENSOR ZERO item.

2.

The controller will prompt to “Tape over sensor, then press

.” Place a piece of tape over the velocity sensor opening to seal off air flowing past the sensor and press the

soft key.

3.

The display will indicate a countdown for the automatic sensor zero procedure, which takes

120 seconds. While counting down the 120 seconds, the controller will also display the current sensor voltage.

4.

After the 120 second countdown, the controller will display “Remove tape from sensor, then press

.” Remove tape from sensor and press the

key to save the zero point.

Sidewall Velocity Sensor—Sensor Span

NOTE:

Always zero sensor prior to adjusting the sensor span. A comparison thermal anemometer is required to calibrate the velocity span. Confirm a good average face velocity is present in the fume face before adjusting the span.

1.

Open the fume hood sash 60% (or to working height) and let the controller reach face velocity set point.

2.

Select VEL SENSOR SPAN item (30 second countdown). After the countdown, the VEL

SENSOR SPAN submenu will be displayed.

3.

Use a thermal anemometer to traverse the open sash area and obtain the average face velocity of the air passing into the hood.

49

4.

Compare the thermal anemometer reading to the

SPANNED VEL

reading on the controller.

5.

At the ENTER SPAN FACT menu item, press the quick keys to adjust the factor until the

SPANNED VEL

reading on the controller display matches the thermal anemometer velocity.

6.

Press the

ENTER (

)

soft key to save the sensor span calibration.

NOTE

: To verify proper calibration, re-enter

VEL SENSOR SPAN

item and compare

SPANNED VEL reading to a new thermal anemometer traverse.

7.

Exit menu, sidewall sensor calibration is complete.

WARNING:

Calibrating the sidewall velocity span on the controller may be an iterative process that takes 1 to 3 trials to get an accurate calibration. After adjusting the span factor, check the calibration to verify an accurate calibration.

Sash Position Calibration

1.

Calibrate flow using LOM VENTURI Calibration section.

2.

Calibrate vertical sash sensor using CALIBRATE SASH POT section.

3.

Enter

SASH FLOW CONTROL

item.

4.

Controller will prompt “Raise sash to 24 inches height then press

.” Open the sash(es) to the 24-inch height and press the

key. a.

The FHC50 controller will display following items:

Desired Flow

Show Sash % Open

Actual Flow

Save & Continue

Set flow for

Flow set point to achieve desired face velocity

Readout of current sash % open

Readout of current measured flow

Use to save data point

Desired face velocity b.

Perform a face velocity traverse using a thermal anemometer. Compare the face velocity traverse reading to the face velocity set point. c.

Adjust the Desired Flow to change the flow control set point for the 24-inch sash position until actual face velocity matches the Set flow for set point. d.

Repeat steps b. and c. as needed before selecting Save & Continue to save the high sash position calibration.

5.

Controller will prompt “Lower sash to 12 inches height then press

.” Lower the sash(es) to the

12-inch height, so the fume hood bypass (if present) is just covered, and press the

key. a.

The FHC50 controller will display following items:

Desired Flow

Show Sash % Open

Actual Flow

Save & Continue

Set flow for

Flow set point to achieve desired face velocity

Readout of current sash % open

Readout of current measured flow

Use to save data point

Desired face velocity b.

Perform a face velocity traverse using a thermal anemometer. Compare the face velocity traverse reading to the face velocity set point.

50 Part Two

c.

Adjust the Desired Flow to change the flow control set point for the 24-inch sash position until actual face velocity matches the Set flow for set point. d.

Repeat steps b. and c. as needed before selecting Save & Continue to save the sash mid-point calibration.

6.

Controller will prompt “Lower sash to 2 inches height then press

.” Lower the sash(es) to the 2-inch height, so the sash(es) are nearly closed, and press the

key. a.

The FHC50 controller will display following items: b.

Perform a face velocity traverse using a thermal anemometer. Compare the face velocity traverse reading to the face velocity set point.

Desired Flow

Show Sash % Open

Actual Flow

Save & Continue

Set flow for

Flow set point to achieve desired face velocity

Readout of current sash % open

Readout of current measured flow

Use to save data point

Desired face velocity c.

Adjust the Desired Flow to change the flow control set point for the 24-inch sash position until actual face velocity matches the Set flow for set point. d.

Repeat steps b. and c. as needed before selecting Save & Continue to save the sash closed calibration.

7.

Controller will display “Sash position vs. flow is done calibrating. Press

.” Press the

key to save calibration and continue.

Flow Calibration

Flow can be measured using a Pressure Flow Station, Linear Flow Station, LOM Venturi, 6-Pt Venturi, or

Calculated from face velocity and open sash area.

Pressure Flow Station Calibration

NOTE:

Flow stations are optional and may not be installed in your system.

1.

Enter CALIBRATE FLOW item.

2.

Set

FLO STA AREA

to the duct area at the flow station location.

3.

Set

FLO STA PRESS FS

to match the range of the pressure transducer used.

Flow Station Pressure Transducer Zero

1.

Disconnect tubing between pressure transducer and flow station.

2.

Select FLO STA PRESS ZERO menu item.

3.

Press the

ENTER

(

)

soft key. Flow zero procedure, which takes 10 seconds, is automatic.

During the 10 second flow zero procedure, the display will indicate the current flow station pressure transducer voltage.

4.

Connect tubing between pressure transducer and flow station.

Technical Section

51

Low Flow Calibration

1.

Set FLO STA FS V to match the voltage output (0 to 10V or 0 to 5V) of the pressure transducer used.

2.

Close the sash.

3.

Select

FLO STA LO CAL

to enter a submenu with the following items:

FLO STA LO SETPT

PRESS ZERO VOLTAGE

PRESSURE VOLTAGE

MEASURED FLOW

ENTER ACTUAL FLOW

Damper position for low flow calibration

Voltage from pressure transducer during Flow Station Pressure

Transducer Zero

Current voltage from pressure transducer

Current flow rate

Input actual flow as measured with reference instrument here

5.

With the

FLO STA LO SETPT

at 0% (default), observe the

PRESSURE VOLTAGE

displayed on the screen, or use a voltmeter to read the voltage at the pressure input terminals 7-8 on the back of the controller.

6.

Slowly

increase

the

FLO STA LO SETPT

percentage value to adjust the damper position until the PRESSURE VOLTAGE (pressure transducer output) shows the first noticeable increase in voltage from the 0% position. A general rule of thumb is that the voltage change should occur with the damper between approximately 10 to 30% open.

NOTE:

Adjusting the FLO STA LO SETPT with the quick keys allows the

PRESSURE VOLTAGE to be displayed in real time.

7.

For reference only, the MEASURED FLOW item will display the default measured flow based on the current settings of the flow station (duct area, etc.).

8.

Determine the actual flow with a duct traverse.

9.

Enter the actual flow measurement under the

ENTER ACTUAL FLOW

menu item.

10.

Press the

ENTER

(

) soft key to save the flow data.

11.

The low flow calibration is complete. Exit the menu with the

ESC

key.

High Flow Calibration

1.

Enter CALIBRATION FLOW menu and raise the sash height to approximately 18 inches

(sash stop).

2.

Select

FLO STA HI CAL

to enter a submenu with the following items:

FLO STA LO SETPT

PRESS ZERO VOLTAGE

PRESSURE VOLTAGE

MEASURED FLOW

ENTER ACTUAL FLOW

Damper position for low flow calibration

Voltage from pressure transducer during Flow Station Pressure

Transducer Zero

Current voltage from pressure transducer

Current flow rate

Input actual flow as measured with reference instrument here

3.

With the FLO STA HI SETPT at 100% (default), observe the PRESSURE VOLTAGE displayed on the screen, or use a voltmeter to read the voltage at the pressure signal transducer input terminals 7-8 on the back of the controller.

4.

Slowly

decrease

the FLO STA HI SETPT percentage value to adjust the damper position until the

PRESSURE VOLTAGE

(pressure transducer output) shows the first noticeable

decrease

in

52 Part Two

voltage from the 100% position. A general rule of thumb is that the voltage change should occur with the damper between approximately 70 to 90% open.

NOTE:

Adjusting the FLO STA HI SETPT with the quick keys allows the

PRESSURE VOLTAGE to be displayed in real time.

5.

For reference only, the MEASURED FLOW item will display the default measured flow based on the current settings of the flow station (duct area, etc.).

6.

Determine the actual flow with a duct traverse.

7.

Enter the actual flow measurement under the

ENTER ACTUAL FLOW

menu item

8.

Press the

ENTER

(

)

soft key to save the flow data.

9.

The high flow calibration is complete. Exit the menu with the

ESC

key.

NOTE

: Use

BALANCE MODE

to verify flow station calibration.

Linear Flow Station Calibration

NOTE:

Flow stations are optional and may not be installed in your system.

1.

Enter

CALIBRATE FLOW

item.

2.

Set FLO STA AREA to the duct area at the linear flow station location.

3.

Set

FLO STA TOP VEL

to match the range of the linear flow station used.

4.

Set FLO STA FS V to match the voltage output (0 to 10V or 0 to 5V) of the linear flow station used.

5.

Linear flow station calibration should be complete. Exit the menu.

NOTE

: Use BALANCE MODE to verify flow station calibration.

LOM Venturi Calibration

NOTE:

LOM Venturi Valves are optional and may not be installed in your system.

1.

Obtain the venturi valve minimum and maximum flow, either by reading the label on the venturi valve or by performing duct traverses when the venturi valve is fully closed and fully opened.

2.

Enter CALIBRATE FLOW item.

3.

Set

VENTURILOM MIN

to the minimum venturi valve flow.

4.

Set VENTURILOM MAX to the maximum venturi valve flow.

5.

LOM Venturi Calibration can be adjusted using the

Flow KFactor

item.

6.

LOM venturi valve calibration is now complete. Exit the menu.

NOTE

: Use BALANCE MODE to verify LOM Venturi calibration.

6Pt Venturi Calibration

NOTE:

6Pt Venturi Valves are optional and may not be installed in your system.

If venturi valve flow data cannot be obtained from venturi valve label, perform duct traverse with venturi valve at 0%, 20%, 40%, 60%, 80% and

100% open (see item

CONTROL_OUT

in

DIAGNOSTICS

menu).

1.

Obtain the venturi valve calibration data by reading the label on the venturi valve.

2.

Enter

CALIBRATE FLOW

item.

Technical Section

53

3.

Enter venturi valve minimum flow in item

VENTURI PT1

.

4.

Enter 2nd point flow in item VENTURI PT2 .

5.

Enter 3rd point flow in item

VENTURI PT3

.

6.

Enter 4th point flow in item VENTURI PT4 .

7.

Enter 5th point flow in item VENTURI PT5 .

8.

Enter 6th point flow in item

VENTURI PT6

.

9.

6pt venturi valve calibration is now complete. Exit the menu.

NOTE

: Use

BALANCE MODE

to verify 6Pt Venturi calibration.

Calculated Flow Calibration

NOTE:

Calibrating Calculated Flow requires first calibrating the Face Velocity using the Sidewall Sensor and calibrating the Sash Pot.

1.

Enter

CAL SASH AREA

menu item.

2.

Controller will display current sash position and prompt “Fully close sash then press

.” Close the sash and press the

key.” After closing the sash(es) and pressing the

, controller will count down for 5 seconds while it allows control to stabilize.

3.

Controller will prompt to “Enter Actual Flow”. Perform a duct traverse or otherwise measure fume hood exhaust volume and enter it into the controller.

4.

Press the

ESC

key to continue.

5.

Controller will display current sash pot position and prompt “Fully open sash then press

.” Open the sash and press the

key.” After opening the sash and pressing the

, controller will count down for 5 seconds while it allows control to stabilize.

6.

Controller will prompt to “Enter Actual Flow”. Perform a duct traverse or otherwise measure fume hood exhaust volume and enter it into the controller.

7.

Press the

ESC

key to continue.

8.

Controller will display “Sash area vs position is calibrated. Press

.” Press the

key to save calibration.

NOTE:

Use BALANCE MODE to verify Calculated Flow calibration or use

CALIBRATE FLOW item to adjust the

FLOW K-FACTOR

.

Sash Opening Calibration

The Sash Opening may be calibrated using a Sash Pot (Vertical Sash Sensor).

Calibrate Sash Pot

1.

Enter CAL SASH POT item.

2.

Controller will display current sash pot voltage and prompt “Fully close sash then press

.” Close the sash(es) and press the

key.

3.

Controller will display current sash pot voltage and prompt “Fully open sash then press

.” Open the sash(es) and press the

key.

4.

Controller prompts “Sash position sensor is calibrated. Press

.” Press the

key to save calibration and exit the menu.

54 Part Two

5.

Verify Sash Pot calibration by entering the

Show Sash%Open

item in the

DIAGNOSTICS

menu. a.

For fume hoods with a single vertical sash, verify that the displayed sash opening moves from

0% to 100% as the sash is moved from full closed to full open. b.

For fume hoods with two vertical sashes, verify that the displayed sash opening is: i.

0% with both sashes closed. ii.

50% with 1 sash open and 1 sash closed. Verify operation with each sash individually opened. iii.

100% with both sashes open. c.

For fume hoods with 3 vertical sashes, verify that the displayed sash opening is: i.

0% with all sashes closed. ii.

33% with 1 sash open and 2 sashes closed. Verify calibration with each of the 3 sashes individually opened. iii.

66% with 2 sashes open and 1 sash closed. Verify calibration with each of the 3 sashes individually closed. iv.

100% with all sashes open.

NOTE:

Verify Sash Pot Calibration to ensure proper wiring and installation.

Optimizing Controller Performance

The Model FHC50 controller uses both integral and PI control methods. Integral control (slower control signal) is used when the controller is near set point. Integral control provides stability when natural system fluctuations occur such as operators working at hoods and lab doors opening. PI control (fast control) is used when responding to large disturbances to face velocity such as sash movements. PI control rapidly returns the face velocity to set point, thus assuring containment. Once the controller is in PI control, it continues to control in this mode until the operating set point is met.

There are four menu items that change the characteristics of the control output signal;

1)

SENSITIVITY

2) SPEED

3) Kc VALUE

4) Ti VALUE

TSI recommends only adjusting the

SENSITIVITY

and

SPEED

to fine tune the control signal. Only when the

SPEED

and

SENSITIVITY

items cannot provide a stable system should

Kc VALUE and Ti VALUE

be adjusted. The role of each menu item is covered in the Menu and Menu Items section of the manual.

This section provides some guidance of when a menu item should be changed.

The controller is shipped with PI values that are appropriate for 95+ % of the fume hoods installed. In fume hoods where some adjustment is needed, minor changes to the SENSITIVITY and SPEED menu items will yield excellent control. The

SENSITIVITY

item selects when the unit goes into PI control. Each percent of the setting from 100% indicates that the controller must be 1 ft/min away from control set point prior to activating PI control. If the

SENSITIVITY

setting is 60% (40% missing), the face velocity must be

40 ft/min off set point before PI control is activated. Conversely, if the SENSITIVITY setting is 80% (20% missing), the face velocity must only be 20 ft/min off set point before PI control is activated. The default of

80% is usually a good compromise between PID and integral control.

The

SPEED

menu item slows down the control output. The controller is shipped with a control signal capable of rotating the damper 90 degrees in 1.5 seconds. This may be too fast if the damper is in an unstable flow area (very near the exhaust fan), or there are competing air flows in the laboratory.

Technical Section

55

Controllers modulating a VFD system will probably need to be slowed down, since the control signal is substantially faster than the VFD/fan can respond.

The remaining menu items , Kc VALUE and Ti VALUE should not be adjusted unless severe stability problems exist. Adjusting these variables may improve the response and stability, but the exact opposite may happen causing the controller to become unstable, hunt substantially, or have very slow response. If controller performance cannot be improved by adjusting the SPEED and SENSITIVITY , the two menu items can be manually set to their default values.

Maintenance and Repair Parts

The Model FHC50 Fume Hood Controller requires minimal maintenance. Periodic inspections of system components as well as an occasional velocity sensor cleaning are all that are needed to ensure that the

Model FHC50 is operating properly. The Model FHC50 should be calibrated annually. Refer to the

Calibration section for further information.

System Component Inspection

It is recommended that the velocity sensor be periodically inspected for accumulation of contaminants. The frequency of these inspections is dependent upon the quality of the air being drawn across the sensor. Quite simply, if the laboratory air is dirty, the sensors will require more frequent inspection and cleaning.

Visually inspect the velocity sensor. The air flow orifice should be free of obstructions. The small, cylindrical, ceramic sensor protruding from the orifice wall should be white and free of accumulated debris.

Figure 5: Velocity Sensor

Periodically inspect the other system components for proper performance and physical signs of excessive wear.

Velocity Sensor Cleaning

Accumulations of dust or dirt can be removed with a dry soft-bristled brush (such as an artist's brush).

If necessary, water, alcohol, acetone, or trichlorethane may be used as a solvent to remove other contaminants.

56 Part Two

Use extreme care when cleaning the velocity sensors. The ceramic sensor may break if excessive pressure is applied, if sensor is scraped to remove contaminants, or if the cleaning apparatus abruptly impacts the sensor.

WARNING:

If you are using a liquid to clean the sensor, turn off power to the

Model FHC50. Do

NOT

apply power before velocity sensor completely dries.

Do

NOT

use compressed air to clean the velocity sensors.

Do

NOT

attempt to scrape contaminants from the velocity sensors.

The velocity sensors are quite durable; however, scraping may cause mechanical damage and possibly break the sensor.

Mechanical damage due to scraping voids the sensor warranty.

Replacement Parts

All components of the Face Velocity Control system are field replaceable. Contact TSI or your nearest TSI

Manufacturer's Representative for replacement part pricing and delivery.

Part Number Description

Found on back of unit

800320

800325

800414

800199

800380

Model FHC50 Fume Hood Controller

Velocity Sensor

Velocity/Controller Sensor Cable

Transformer Cable

Controller Output Cable

Electric Actuator

Troubleshooting Section

The Model FHM10 Fume Hood Monitor and FHC50 Fume Hood Controller is designed to be trouble free.

However, installation problems or interaction with other HVAC components may cause system problems.

The system is easy to troubleshoot if an organized approach to evaluate the system is taken.

Troubleshooting is broken down into hardware (mechanical) and software problems. Hardware problems deal with the physical installation of the device. Hardware problems include wiring problems, incorrectly installed equipment, and add-ons or non-TSI equipment. Software problems include control problems, configuration problems, or interaction problems with the HVAC system.

The hardware test described in this section determines that all TSI mechanical components are functioning correctly. The hardware test requires the diagnostics menu items to be accessed. If you are unfamiliar with

the controller menus, see Software Programming for keystroke procedure. Troubleshooting the majority of

problems is usually quick if the hardware test is followed.

Software and hardware problems are covered in the troubleshooting chart. Pick the problem that most closely resembles your problem and review the possible symptoms and corrective action. Software or system performance problems can and are affected by the supply air system, exhaust air system, or physical configuration of the room. Separating TSI system problems from the laboratory HVAC system can sometimes be difficult. TSI recommends confirming all hardware is operating correctly before troubleshooting software problems.

Technical Section

57

Hardware Test

Three tests need to be performed in order to determine all hardware is functioning correctly. The tests are broken down into:

Confirming wiring is correct .

Confirming physical installation is correct .

Verifying mechanical components .

Confirming wiring is correct

The most common problem with installed hardware equipment is incorrect wiring. This problem usually exists on initial installation, or when modifications to the system take place. The wiring should be very closely checked to verify it

exactly

matches the wiring diagram. Wiring diagrams are located in Appendix B of this manual. Wiring associated with non-TSI components should be closely checked for correct installation. If non-TSI components are installed, consider disconnecting them for testing purposes.

Confirming physical installation is correct

All of the hardware components need to be installed properly. Review the installation instructions and verify components are installed properly at the correct location. This is easily done when the wiring is checked.

Verifying mechanical components

Verifying all TSI components are operating correctly requires following a simple procedure. The fastest procedure to confirm all equipment is operating is to first test the Digital Interface Module

(DIM), and then go into the diagnostic menu to test each component.

NOTE:

These tests require power to the units, so if unit has no power, refer to hardware troubleshooting chart to eliminate power problem.

TEST - DIM

Enter the SELF TEST menu item in the diagnostics menu to verify DIM electronics are functioning correctly. During the self test, the display will show the model number and software revision of the controller. At the end of the self test, the display will show a message. The display shows:

NO ERRORS if all DIM electronics are good.

FRAM error if settings may have been lost. Press

RESET

to clear error and check all settings for correct values.

CALIB error if sensor calibration may have been lost. Verify face velocity, sash sensor and/or flow calibration.

If

NO ERRORS

is displayed, proceed to test individual components in the Diagnostics Menu . If the

controller passes each of the tests, the mechanical piece parts are all functioning correctly.

Diagnostics Menu

The items in the Diagnostic Menu aid in identifying problems the staff may encounter. Upon entering the

Diagnostics Menu, all of the associated outputs hold at their most recent state. Output can be temporarily changed by entering the item or by pressing the quick keys. No permanent change occurs with these menu items. All of the associated inputs in the Diagnostics Menu will continually update in order to monitor their function. The Diagnostics menu is exited by pressing the

ESC

soft key. When the Diagnostics menu is exited, the controller returns to its normal state.

58 Part Two

Control Output

Menu item - CONTROL OUT

Enter

CONTROL OUT

menu item in diagnostics menu. A number between 0% open and 100% open representing the current damper or venturi valve position will be displayed. Close the damper or venturi valve fully using the quick keys or entering the CONTROL OUT item and using the

key.

Note the position of the control damper or venturi valve. Open the damper or venturi valve fully using the quick keys or the

key. The damper should have rotated 90 degrees, or the venturi valve should have moved its full stroke. If the damper rotated less than 85 degrees (or the venturi valve moved less

than 90% of full stroke), see Troubleshooting chart

:

Control system is not controlling

. If the damper or

valve is fully closed when the CONTROL OUT item is 100% open, change direction of control using

CONTROL SIG item in CONTROL menu.

WARNING:

The CONTROL OUT function overrides the face velocity or flow control signal. Adequate face velocity or flow will

NOT

be maintained while in this menu item.

Velocity Sensor Input

Menu item – VEL SENSOR INPUT

The

VEL SENSOR INPUT

item verifies that the controller electronics is receiving a signal from a sidewall sensor. When this item is entered, a voltage will be indicated on the display. The exact number displayed is relatively unimportant. It is more important that the displayed number changes when the velocity changes (blow on sensor, move sash, etc.). If display does not change, see

Troubleshooting chart

;

“SENSOR ERROR” flashing on display

.

Menu item – SHOW FACE VEL

The

SHOW FACE VEL

item is used to display the current face velocity, either as measured by a sidewall sensor or calculated from exhaust flow rate and open sash area.

NOTE:

If face velocity does not match actual readings, recalibrate face velocity.

Flow Station Input

Menu item –

FLOW ANALOG INPUT

The FLOW ANALOG INPUT item is used to read the input from the flow station. When this item is entered, a voltage is indicated on the display. The exact number displayed is relatively unimportant. It is more important that the voltage is changing which indicates the flow station is working correctly.

0 VDC displayed equals zero flow.

10 VDC displayed equals maximum flow.

NOTE:

FHM10 monitors and FHC50 controllers can be field configured so 5 VDC displayed equals maximum flow.

Show Flow

Menu item – SHOW FLOW

The

SHOW FLOW INPUT

item is used to display the current measured or calculated rate of the fume hood exhaust flow in cfm, l/s or m

3

/hr.

NOTE:

If flow does not match actual readings, recalibrate flow.

Technical Section

59

Analog Output

Menu Item - ANALOG OUT

The

ANALOG OUT

item varies the analog output from the unit. When this item is entered, a number will be shown on the display indicating the last analog output value. The value displayed ranges from

0 to 100%. The value 0% corresponds to 0 volts (4 mA) output and 100% corresponds to 10 Volts

(20 mA) output. Pressing the

 key will increase the analog output. Pressing the

 key will decrease the analog output.

The ANALOG OUT function can be used in conjunction with a volt meter to verify the analog output is correct.

Alarm Relay A

Menu Item -

ALARM RELAY A

The ALARM RELAY A item changes the state of the alarm relay. When this item is entered, the display will indicate either OK or ALARM . The

/

keys are used to toggle the state of the relay.

See menu item RELAYS OUT under the CONFIGURE menu for the desired contact state

(OK=OPEN or OK=CLOSED) during an alarm condition.

Alarm Relay B

Menu Item -

ALARM RELAY B

The ALARM RELAY B item changes the state of the alarm relay. When this item is entered, the display will indicate either OK or ALARM . The

/

keys are used to toggle the state of the relay.

See menu item RELAYS OUT under the CONFIGURE menu for the desired contact state

(OK=OPEN or OK=CLOSED) during an alarm condition.

Sash Contact Input

Menu Item –

IN# SASH CONTACT

The IN# SASH CONTACT item reads the current state of a sash contact input. This item will only be displayed when the corresponding

INPUT SEL #

item has been set to SASH CONTACT under the

CONFIGURE menu. When this item is entered, the display will indicate either OPEN or CLOSED. If the display indicates closed, the unit is in High Sash Alarm mode.

NOTE:

IN# SASH CONTACT

is a read-only menu item.

Emergency Contact Input

Menu Item –

IN# EMERG PURGE

The IN# EMERG PURGE item reads the current state of an emergency contact input. This item will only be displayed when the corresponding

INPUT SEL #

item has been set to EMERG PURGE under the CONFIGURE menu. When this item is entered, the display will indicate either OPEN or

CLOSED. If the display indicates CLOSED, the controller has been put into emergency mode through the contact input. If the display indicates OPEN, the controller has not been put into emergency mode through the contact input. However, the controller may be in emergency mode if it has been initiated through the keypad or via network communications.

NOTE:

IN# EMERG PURGE is a read-only menu item.

60 Part Two

Setback Input

Menu Item – IN# NIGHT SETB

The

IN# NIGHT SETB

item reads the current state of a setback contact input. This item will only be displayed when the corresponding INPUT SEL # item has been set to NIGHT SETB under the

CONFIGURE

menu. When this item is entered, the display will indicate either OPEN or CLOSED. If the display indicates CLOSED, the controller has been put into setback mode through the contact input. If the display indicates OPEN, the controller has not been put into setback mode through the contact input. However, the controller may be in setback mode if it has been initiated through the keypad or via network communications.

NOTE:

IN# NIGHT SETB is a read-only item.

Sash Position Input

Menu item – IN1 SASH POS VER

The

IN1 SASH POS VER

item is used to read the input from the sash position potentiometer. This item will only be displayed when the INPUT SEL 1 item has been set to SASH POS VERT under the

CONFIGURE

menu. When this item is entered, a voltage is indicated on the display. The exact number displayed is relatively unimportant. More important is that as the fume hood sash is moved, the voltage on the display should also change, which indicates the sash position potentiometer is working correctly.

NOTE:

IN1 SASH POS VER is a read-only item.

Show Sash % Open

Menu item – SHOW SASH%OPEN

The

SHOW SASH%OPEN

item is used to display the current measured or calculated sash open percentage.

Show Sash Open Area

Menu item – SHOW SASH AREA

The

SHOW SASH AREA

item is used to display the current measured or calculated sash open area in ft

2

(or m

2

).

Unit Self Test

Menu item –

SELF TEST

Enter the SELF TEST menu item to verify DIM electronics are functioning correctly. During the self test, the display will show the model number and software revision of the controller. At the end of the self test, the display will show NO ERRORS if all DIM electronics are good. If unit displays an

FRAM error at the end of the test, settings may be corrupted. Check all menu items to determine cause of DATA ERROR. If unit displays a CALIB error at the end of the test, calibration may have been lost. Verify face velocity, sash sensor and/or flow calibration.

Reset Settings

Menu Item –

RESET SETTINGS

The RESET SETTINGS item is used to change all settings to factory default. RESET SETTINGS will not affect calibration.

WARNING:

Unconfiguring the unit with the RESET SETTINGS item may change critical settings including control set point. Always reconfigure unit after using RESET SETTINGS item.

Technical Section

61

Reset Calibration

Menu Item – RESET ALL CALIBS

The

RESET ALL CALIBS

item is used to clear field calibration data.

WARNING:

Clearing field calibration data with the RESET ALL CALIBS item may result in incorrect calibration and/or loss of containment.

Always recalibrate unit after using RESET ALL CALIBS item.

Troubleshooting Chart

Symptom Possible Cause Corrective Action

Display is blank. Fuse is blown. Measure voltage at pins 1 and 2 on DIM 4-pin connector.

The voltage should nominally be:

24 to 40 VDC when using TSI electric actuators.

24 to 30 VAC when using motor speed drives.

If correct voltage is measured, internal DIM fuse is probably blown. Unplug 4-pin connector from DIM for 2 minutes. The internal fuse will automatically reset. Plug unit back in and check display. If display is still blank, check all wiring, etc.

If approximately 5 volts is measured, the fuse in the electric actuator is blown. Disconnect power to the electric actuator for two minutes to reset fuse. Disconnecting power requires either shutting off circuit breaker or disconnecting the wires on pins 1 and 2 on the electric actuator.

If zero volts are measured, see

No power to DIM

.

Verify circuit breaker is on.

Verify transformer primary measures 110 VAC.

Verify transformer secondary measures 24 to 30 VAC.

If using DC power output from TSI electric actuator:

Verify electric actuator is receiving 24 to 30 VAC between pins 1 and 2.

Verify 18 to 40 VDC is found between pins 3 and 4 of the electric actuator.

No power to

DIM.

Verify circuit breaker is on.

Verify transformer primary measures 110 VAC.

Verify transformer secondary measures 24 to 30 VAC.

Verify 24 to 40 VDC is found between pins 3 and 4 of the electric actuator.

Verify DIM voltage on pins 1 and 2 is 24 to 30 VAC for VFD systems, or 32 to 40 VDC on electric actuators.

DIM is defective. If proper voltage is found between pins 1 and 2 of the DIM, all wiring has been checked, fuses have been reset, and screen is still blank, the DIM is probably defective. Replace DIM.

62 Part Two

Symptom

Menu soft key not displayed.

Possible Cause Corrective Action

DISPL

SOFTKEYS set to OFF.

Press left and right quick-keys and right-most soft key simultaneously to gain access to menu system. Set

DISPL SOFTKEYS

item in

CONFIGURE

menu to ON.

Need to display model number and firmware revision

-- Select SELF TEST

item in DIAGNOSTICS menu or display

hello screen by simultaneously pressing the three right-most soft keys while in the running screen.

Controller is not controlling.

Incorrect wiring.

Damper/Valve moving opposite direction.

No control output signal.

Verify correct wiring (see Wiring diagram ; Appendix C). DIM

must be wired exactly as shown.

If damper is full open when it should be closed or full closed when it should be open, go into

CONTROL

menu

CONTROL SIG

menu item. Change

DIRECT

to

REVERSE

or

REVERSE

to

DIRECT

to change control output direction.

Go into

DIAGNOSTICS

menu ,

CONTROL OUT

item. A number between 0% OPEN and 100% OPEN will be displayed.

Pressing the

key increases the number. Pressing the

key decreases the number. Measure the DC voltage between pins 1 and 2 (4-pin connector) on the controller. Change the CONTROL

OUT value about 40%. The voltage output should change approximately 4 volts. Change the CONTROL OUT value to

50% OPEN. The voltage should read approximately 5 VDC.

If no change occurs, disconnect control wires on pins 1 and 2

(4-pin connector) and repeat test. If DIM still fails to change voltage output, DIM is probably defective. If voltage changed

DIM is working, and either wiring or actuator (VFD) needs to be examined.

Technical Section

63

.

Symptom

Controller is not controlling.

(continued)

Possible Cause Corrective Action

Bad actuator or valve (damper or valve linkage doesn't move).

Go into

DIAGNOSTICS

menu

,

CONTROL OUT item. A number between 0% OPEN and 100% OPEN will be displayed.

Pressing the

key increases the number. Pressing the

key decreases the number. Change the CONTROL OUT value to read 0% OPEN or 100% OPEN. Note damper/valve position.

Press an arrow key to change 0% OPEN to 100% OPEN or 100%

OPEN to 0% OPEN. Note position of damper/valve. Damper should have rotated 90 degrees (or valve linkage moved full stroke). If damper rotated 90 degrees (or valve linkage moved full stroke), actuator is installed and operating correctly.

If damper/valve did not move, check that:

Damper/valve is not physically stuck (screws, etc.).

Wiring is correct between actuators and controller. Check that voltage varies between 0 and 10 volts on pins 5 and 6 on

electric actuator (see

No

c

ontrol output signal

).

Electric actuator is not over torqued. The electric actuator has current limiting protection. If damper is physically stuck or actuator is over current, the actuator will shut down. To restart either kill power to actuator or move damper/valve in opposite direction ( CONTROL OUT menu item).

Defective variable frequency drive

(VFD).

Damper/Valve is full open or full closed, won’t move.

Controller not calibrated.

Perform test described in

Control system is not controlling

. If

CONTROL OUT

is functioning, verify wiring to VFD by confirming

CONTROL OUT

voltage changes at VFD. If voltage changes, a problem with VFD exists. See VFD manual for further troubleshooting.

Control wires are loose. Check wires and verify control output is

working (see

No control output signal

). If control output test

passes, verify damper/valve is moving correct direction (see

Damper/Valve moving opposite direction

). If damper/valve is

moving correctly and set point cannot be reached, DIM will fully move damper/valve to get as close to set point as possible. Fume hood exhaust; fan, static pressure, etc. needs to be adjusted.

Calibrate controller. Controller is not calibrated leaving the factory; it must be field calibrated.

64 Part Two

Symptom

“Check the Sensor

Cable” flashing on display.

Possible Cause Corrective Action

Poor sensor connections.

Verify the sensor cable is correctly plugged into the DIM and sensor. Connector is polarized but can be forced on backwards.

Defective sensor. Disconnect the velocity sensor cable from the back of DIM.

Depress the latching piece on the connector to pull it out. Use an ohm meter to measure the resistance between the sensor connections indicated in figure below. The resistance between pins 3 and 4 should be between 10 and 12.5 ohms. The resistance between pins 2 and 4 should be between 120 and 140 ohms. If resistance does not measure correctly, verify that sensor cable is good.

Remote emergency doesn’t work.

Remote setback doesn’t work.

Defective sensor cable.

Excessive face velocity.

Controller not calibrated.

Incorrect wiring or defective switch.

Defective controller.

Figure 6

: Velocity Sensor

Verify wire is terminated the same on both ends of cable. Confirm wire colors match pin 1 to 1, pin 2 to 2, etc. Test sensor cable with an Ohmmeter to ensure that cable terminations are good.

Confirm the fume hood face velocity is over 1000 ft/min. If face velocity exceeds 1,000 ft/min, exhaust system needs balancing.

Calibrate controller.

Disconnect emergency remote wires from DIM. Verify wiring with an Ohmmeter by switching the emergency switch open and closed. If operational, reconnect to DIM.

Verify wiring and switch are good. Enter DIAGNOSTICS menu

IN# EMERG PURGE item. Display will indicate OPEN or

CLOSED . Toggle the remote emergency switch, and the display should change between OPEN and CLOSED . If no change, replace DIM.

Incorrect wiring or defective

Disconnect remote wires from DIM. Verify wiring with an

Ohmmeter by switching the setback switch open and closed. If switch. operational, reconnect to DIM.

Defective DIM.

Verify wiring and switch are good. Enter

DIAGNOSTICS

menu

IN# NIGHT SETB

item. Display will indicate

OPEN

or

CLOSED

. Toggle the remote setback switch, and display should change between

OPEN

and

CLOSED

. If no change, replace

DIM.

Technical Section

65

Symptom

DIM does not respond to network communications.

Possible Cause Corrective Action

Network protocol is incorrect.

Go into INTERFACE menu ,

NET PROTOCOL item. The protocol must match host system. Select correct interface.

Alarm relays don't work.

Actuator hunting.

Display indicates steady velocity.

Incorrect network address.

The network address at the building automation system and at the

DIM must match. The network address must be unique for each

DIM.

Incorrect polarity. Verify and/or change polarity of RS-485 A and B wires.

Incompatible software.

LonWorks

®

or

BACnet

® board not installed.

Bad LonWorks

® or BACnet

® board.

Data sent to DIM may be in form that the controller cannot recognize.

Contact factory for further assistance.

Contact factory for assistance.

Foreign network acquired controller.

(LonWorks

®

only)

Alarms are turned off.

Relay may be defective.

Go into CONFIGURE menu , LON item. Select

GO

UNCONFIG

option, press the

SELECT

key. Return to the LON item, select the

SERVICE PIN

option and press the

SELECT

key. Selecting

GO UNCONFIG

will reset the FHC50’s authentication key, allowing the

SERVICE PIN

to install or reclaim the FHC50 to the LonWorks

®

network.

Enter the Set Points menu. Verify that the alarm that is supposed to trigger the relay is not set to 0 (OFF). If the alarm set point is zero, alarm relay is not active, so relay will not be required to change state.

Incorrect wiring. Check the wiring from DIM relay's output to the device that is connected to the relays.

Disconnect the wiring (6-pin connector) from relay contact pins 1 and 2 for low alarm relay and pins 3 and 4 for relay “B”. Go into

DIAGNOSTICS

menu ,

ALARM RELAY A

or

ALARM RELAY B

. Connect an ohm-meter to relay terminals to verify contact open and closes. Press the

/

key to manually trip the relay. If relay responds (contact opens and closes), the device connected is incompatible or defective. If relay doesn’t respond, relay is defective (may be caused by incompatible device). Replace DIM.

Control system is unstable.

Go into CONTROL menu ,

SPEED item. Turn speed down until hunting is eliminated. If speed is too slow see Manual Section:

Optimizing Controller Performance

and adjust accordingly to eliminate problem.

66 Part Two

Symptom

Displayed velocity wildly fluctuating.

Analog output doesn't work properly.

Displayed velocity doesn't match measured velocity.

Display does not read zero flow at zero flow.

Caution

light on continuously.

Display indicates steady velocity.

“Flow Calibration

Required” on the display

Velocity sensor is dirty.

Controller is not calibrated.

Velocity sensor is not referenced to room air.

Controller is not calibrated.

Velocity sensor is not referenced to room air.

Monitor/controller is in setback mode.

Monitor/controller is muted.

Possible Cause Corrective Action

Exhaust system unstable.

Turn DIM to emergency if using a Model FHC50 controller. If velocity stabilizes, exhaust system is not unstable.

Laboratory supply air is affecting the sensor.

Display averaging is very short.

Check location of supply air diffusers. They should be located as far from the velocity sensor as is realistic, 10 feet preferred, 6 feet minimum. Supply diffuser terminal throw velocity must be less than 50% of the average controlled face velocity. Velocity in the fume hood chase (back side of sensor) should be less than 25% of the average controlled face velocity. The supply diffuser must be relocated if these parameters cannot be met.

Lengthen the time constant by entering the

CONFIGURATION menu ,

DISPLAY AVG

item, and increase the average time.

Calibrate controller. Controller needs calibration.

Controller is connected to incompatible equipment.

Enter the DIAGNOSTICS menu ,

ANALOG OUT

If no change occurs, disconnect the analog out device and repeat above procedure. If voltage now changes, the controller is good, and the external device is defective. If no change occurs, DIM is defective.

See Maintenance and Repair Parts .

item. A number is displayed. Connect a voltmeter to pins 5 and 6 (6 pin connector). Pressing the

key increases the displayed number and increases the voltage (current) output. Pressing the

 key decreases the number and decreases the voltage (current) output.

See Calibration

The velocity sensor must reference air from the same space as the fume hood space. If fume hood cabinet extends above to the ceiling, a Model 8691 Sensor Venting Kit must be installed.

Display will read SETBACK . Press SETBACK key, and control should return to normal.

Display will read Mute. Press Mute key to return to normal function.

.

The velocity sensor must reference air from the same space as the fume hood space. If fume hood cabinet extends above to the ceiling, a Model 8691 Sensor Venting Kit must be installed.

See Calibration .

Flow measurement needs calibration,

Calibrate flow using instructions in Calibration section.

Technical Section

67

Symptom

“Cannot Measure

Flow” on the display

“The configuration is not supported.

Reconfiguration is required.” on the display.

“LON

OVERRIDE ON” on the display

“EMERGENCY” on the display.

Possible Cause Corrective Action

Low pressure drop across venturi valve with feedback.

Verify venturi valve pressure drop with a micromanometer like

TSI DP-C

ALC

™ Model 5825. Adjust fan or other flows to provide sufficient duct static pressure.

Verify 24VAC power provided to venturi valve feedback module. No power to venturi valve feedback module.

Sash sensor not connected or malfunctioned.

Incorrect configuration.

Enter

DIAGNOSTICS

IN1 SASH POS VER

menu

. Sash input should be at minimum

(maximum) when sash(es) are open and maximum (minimum) when sash(es) are closed. and view menu item

Run Configuration Wizard to correct configuration.

BAS

Communications have taken control of FHC50.

Release control at BMS to clear.

Unit put into

Emergency mode.

WARNING:

Adequate face velocity may not be maintained while LON overrides the control signal.

Verify chemical spill or other reason Emergency mode was enabled has been resolved. Exit Emergency Mode by pressing:

“Check the Sash

Pot” on the display.

Sash Sensor slipped.

.

Reconnect sash sensor to fume hood sash cable and recalibrate sash sensor.

68 Part Two

Symptom

Error message on display.

Possible Cause Corrective Action

Clear error using Self_Test

item in DIAGNOSTICS menu . If

error recurs, return unit to factory. controller.

Error messages:

ADC Read Error

Interrupt Fail Error

Data C Checksum Error

Data U Checksum Error

I2C FRAM Write Error

Flow Setup Data Error

Control Calib Data Error

AOut Calib Data Error

AIn Calib Data Error

Configuration Data Error

Meter ID Data Error

FRAM RD Meter ID Error

FRAM RD User Config Error

FRAM Rd Meas Cals Error FRAM

Rd Control Cal Error

FRAM Rd Aout Cal Error

FRAM Rd Ain Cal Error

FRAM Rd Stored Errs Error

FRAM Wr Stored Errs Error

FRAM Wr Clear Errs Error

FRAM Wr Changed Data Error

FRAM Wr Clear FRAM Error

Flow Calib Data Error

Sash Position Calib Error

Sash Sensor Calib Error

Sash Area Calib Error

Vel Calib Data Error

Internal error in monitor or

Technical Section

69

(This page intentionally left blank)

70 Part Two

Appendix A

Specifications

Digital Interface Module

Display

Range .............................................. 0 to 1,000 ft/min (0 to 5.08 m/s)

0 to 10,000 cfm (0 to 4,720 l/s, 0 to 16,990 m

3

/hr)

Resolution ...................................... 1 ft/min (0.01 m/s)

1 cfm (1 l/s, 1 m

3

/hr)

Inputs

Type ................................................ Three (3) Total

Choice of: Sash Position, Sash Contact, Setback In,

Emergency In

Signal .............................................. Sash Position: 0-10,000

Sash Contact, Setback In, Emergency In: SPST (N.O.)

Switch. Closing switch initiates condition.

Flow Input ....................................... 0 to 10VDC

Pressure-based flow station, linear flow station or venturi valve with feedback

Outputs

Analog Output

Type ................................................ 0 to 10 VDC or 4 to 20 mA

Range .............................................. 0 to configurable maximum representing face velocity, flow or sash position

Alarm Contacts ............................... SPST, 60 W max

2A @ 30 VDC Nominal

Contacts field-configurable to open or close in alarm condition.

Contacts close on loss of power.

Low Alarm Range ........................... 5 to 980 ft/min (0.03 to 4.88 m/s)

0 to 10,000 cfm (0 to 4,720 l/s, 0 to 16,990 m

3

/hr)

High Alarm Range .......................... 80 to 1,000 ft/min (0.41 to 5.08 m/s)

0 to 10,000 cfm (0 to 4,720 l/s, 0 to 16,990 m

3

/hr)

Communications Protocols ............. Modbus

®

RTU or N2 (standard) 9600 baud

BACnet

®

MS/TP (Optional) 76.8k, 38.4k 19.2k,9600 baud)

LonWorks

®

(Optional)

Operating Temperature ................... 32 to 120°F (0 to 48.9

°

C)

Input Power ..................................... 24 VAC, 50/60 Hz

15 to 40 VDC

5 Watt maximum (50 VA with TSI Actuator)

Dimensions ...................................... 6.67 in x 2.92 in x 1.25 in (169 mm x 74 mm x 32 mm)

Weight ............................................. 0.5 lb (0.2 kg)

71

Velocity Sensor

Range: ............................................. 0 to 1,000 ft/min (0 to 5.08 m/s)

Resolution: ...................................... 1 ft/min (0.00508 m/s)

Temperature Compensation Range . 55 to 95°F

Power Dissipation ........................... 0.09 watts at 0 ft/min. (0 m/s)

0.14 watts at 100 ft/min. (0.508 m/s)

Dimensions (D x H) ........................ 2.75 in.

×

1.25 in. (70 mm

×

32 mm)

Weight ............................................. 0.2 lb (0.1 kg)

Sensor Cable Specifications ............ 4-conductor, 22 AWG, 4-pin polarized at both ends with a standard length of 6 ft (a maximum length of 10 ft).

Vertical Sash Sensor

Cable Type ...................................... Nylon-coated stainless steel

Maximum Retraction ...................... 50 in. (1,270 mm)

Resistance ........................................ 0 to 10,000

Electrical Cable ............................... 2-conductor, 24 AWG

12 ft (3.6 m)

Dimensions ...................................... 2.0 in

×

3.5 in

×

3.1 in (51 mm

×

88 mm

×

79 mm)

Damper/Actuator

Types of Actuator ............................ Electric

Input Power ..................................... Electric: 24 VAC, 50 VA max

Time for 90° Rotation ..................... 1.5 sec.

72 Appendix A

Appendix B

Network Communications

Network communications are available on the Model FHC50. The Model FHC50 can communicate with a building management system through Modbus

®

, N2, LonWorks

®

or BACnet

®

MS/TP protocols. Please refer to the appropriate section below for more detailed information.

Modbus

®

Communications

Modbus

®

communications are installed in the Model FHC50 fume hood controllers. This document provides the technical information needed to communicate between the host DDC system and the Model

FHC50 units. This document assumes the programmer is familiar with Modbus

®

protocol. Further technical assistance is available from TSI if your question is related to TSI interfacing to a DDC system. If you need further information regarding Modbus

®

programming in general, please contact:

Modicon Incorporated (a division of Schneider-Electric)

One High Street

North Andover, MA 01845

Phone (800) 468-5342

The Modbus

®

protocol utilizes the RTU format for data transfer and Error Checking. Check the Modicon

Modbus

®

Protocol Reference Guide (PI-Mbus-300) for more information on CRC generation and message structures.

The messages are sent at 9600 baud with no start bit, 8 data bits, and 2 stop bits. Do

not

use the parity bit.

The system is set up as a master slave network. The TSI units act as slaves and respond to messages when their correct address is polled.

Blocks of data can be read from each device. Using a block format will speed up the time for the data transfer. The size of the blocks is limited to 255 bytes. This means the maximum message length that can be transferred is 255 bytes. The typical response time of the device is around 0.05 seconds with a maximum of 0.1 seconds.

Unique to TSI

The list of variable addresses shown below skips some numbers in the sequence due to internal Model

FHC50 functions. This information is not useful to the DDC system and is therefore deleted. Skipping numbers in the sequence will not cause any communication problems. If a variable is not used by the particular FHC50 configuration, it will be reported with a value of -1.

All variables are outputted in English units: ft/min, and cfm. If the DDC system is to display different units, the DDC system needs to make the conversion.

Network Points

These variables can be read using Modbus

®

command

03 Read Holding Registers

. They can be written to using Modbus

®

command

06 Write Single Register

. Many of these variables are the same “menu items” that are configured from the controller keypad. The calibration and control items are not accessible from the DDC system. This is for safety reasons since each hood is individually setup for maximum performance.

Modbus is a registered trademark of Modicon, Inc.

73

Modbus Communications (continued)

FHC50 Variable List

Feature

Holding

Register

(Decimal) Range Unit

40001 0 to 1000 fpm Face Velocity

Current Face

Velocity Setpoint

Flow Rate

Current Flow Rate

Setpoint

Damper or Valve

Position

Sash Position

Percent

Sash Open Area

Low Velocity Alarm

Status

High Velocity Alarm

Status

Low Flow Alarm

Status

High Flow Alarm

Status

High Sash Position

Alarm Status

Velocity Sensor

Error Status

Data Error Status

Setback Status

Emergency Status

40002

40003

40004

40005

40006

40007

40008

40009

40010

40011

40012

40013

40014

40015

40016

0 to 1000 fpm

0 to 10000 cfm

0 to 10000 cfm

0 to 100

0 to 100

%

%

0 to 1000 ft

2

* 100

0, 1

0: Inactive

1: Active

0, 1

0, 1

0, 1

0, 1

0, 1

0,1

0, 1

0, 1

0: Inactive

1: Active

0: Inactive

1: Active

0: Inactive

1: Active

0: Inactive

1: Active

0: Inactive

1: Active

0: Inactive

1: Active

0: Inactive

1: Active

0: Inactive

1: Active

Normal Face

Velocity Setpoint

Setback Face

Velocity Setpoint

Normal Low Face

Velocity Alarm

Setpoint

Normal High Face

Velocity Alarm

Setpoint

Setback Low Face

Velocity Alarm

Setpoint

Setback High Face

Velocity Alarm

Setpoint

Normal Flow

Setpoint

Setback Flow

Setpoint

40021

40022

40023

40024

40025

40026

40027

40028

60 to 1000 fpm

60 to 1000 fpm

5 to 980

80 to 1000 fpm

5 to 945 fpm fpm

50 to 1000 fpm

0 to 10000 cfm

0 to 10000 cfm

74

R

R

R

Read /

Write Notes

R

R

R

R

R

R

R

R

R

R

R

R

R

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

Appendix B

Modbus Communications (continued)

Feature

Min Flow Setpoint

Holding

Register

(Decimal) Range

40029

Unit

0 to 10000 cfm

0 to 10000 cfm Max Flow Setpoint

Normal Low Flow

Alarm Setpoint

Normal High Flow

Alarm Setpoint

Setback Low Flow

Alarm Setpoint

Setback High Flow

Alarm Setpoint

40030

40031

40032

40033

40034

Min Damper Position 40035

Max Damper

Position

40036

Setback Damper

Position Setpoint

High Sash Position

Alarm Setpoint

40037

40038

0 to 10000 cfm

0 to 10000 cfm

0 to 10000 cfm

0 to 10000 cfm

0 to 100

0 to 100

0 to 100

0 to 105

%

%

%

%

Units Value

Display Averaging

Emergency Mode

Setback Mode

40041

40042

40043

40044

0, 1, 2

0 to 7

0, 1

0, 1

0: FPM, cfm

1: m/s & m

3

/h

2: m/s & l/s

0: 0.5 sec avg

1: 1 sec avg

2: 2 sec avg

3: 3 sec avg

4: 5 sec avg

5: 10 sec avg

6: 20 sec avg

7: 40 sec avg

0: Exit Emergency

Mode

1: Enter

Emergency Mode

0: Exit Setback

Mode

1: Enter Setback

Mode

R/W

R/W

W

W

Read /

Write Notes

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

For display only

Not Used

Not Used

Mute Timeout

Not Used

Not Used

Not Used

40045

40046

40047

40048

40049

40050

N/A

N/A

1 to 120

N/A

N/A

N/A

N/A

N/A

Minutes

N/A

N/A

N/A

R/W

R/W

R/W

R/W

R/W

R/W

Not used on standard configuration.

Not used on standard configuration.

0: Permanent Mute

Not used on standard configuration.

Not used on standard configuration.

Not used on standard configuration.

Network/Modbus

®

Communications

75

Modbus Communications (continued)

Feature

Holding

Register

(Decimal) Range

Alarm Reset 40051 0, 1

Unit

0: Unlatched

1: Latched

Read /

Write Notes

R/W

Not Used

Not Used

40052

40053

N/A

N/A

N/A

N/A

R

R/W

EXAMPLE of

06 Write Single Register

function format:

This example changes the normal low face velocity alarm set point to 60 ft/min.

QUERY RESPONSE

Field Name

Slave Address

(Hex)

01

Field Name

Slave Address

(Hex)

01

Function

Starting Address Hi

Starting Address Lo

Data Value (High)

Data Value (Low)

Error Check (CRC)

06

00

16

00

3C

--

Function

Starting Address Hi

Starting Address Lo

Error Check (CRC)

EXAMPLE of

03 Read Holding Registers

function format:

This example reads the face velocity and current face velocity set point.

QUERY RESPONSE

Field Name

Slave Address

(Hex)

01

Field Name

Slave Address

(Hex)

01

06

00

16

--

Function 03

Starting Address Hi 00

Starting Address Lo

No. Of Registers Hi

00

00

No. Of Registers Lo 02

Error Check (CRC) --

Function

Byte Count

Data Hi

Data Lo

Data Hi

Data Lo

Error Check (CRC)

03

04

00

64 (100 ft/min)

00

64 (100 ft/min)

Not used on standard configuration.

Not used on standard configuration.

76 Appendix B

N2 Communications

Description of Variables

Description of Variables

NPT - Network Point Type

Variables are defined as analog inputs, binary inputs, and analog outputs. Analog inputs are current control parameters and items that the controller is measuring. Binary inputs represent controller states. Analog outputs are the programmable set points for the Fume Hood Controller. These set points can be changed through the keypad or by over-writing the current set point.

NPA - Network Point Address

Address of the desired point.

Change of Status (COS) - Face Velocity Analog Input

The FHC50 has the ability to change control set points locally. The alarm set points need to be based on the controllers control set point (AI #2). The unit can be changed from Normal Mode to Setback Mode. For example the set point could go from 100 ft/min to 60 ft/min when the Setback key is pressed. If the COS alarm set points are not changed to accommodate you could get low alarm or low warning messages when the unit is working correctly. If these alarm points are set outside of the setback and main velocity set point values, incorrect alarm messages can be prevented.

Override Analog Input Command

The Damper Position Analog Input value can be set using the override command. This value will be reset to the correct item when the Override is released. There is not a time-out on the override command.

Other Analog Input values cannot be Overridden.

Override Binary Input Command

Overriding a 1 to the Setback or Emergency binary inputs enables the respective mode. To return the controller to normal mode from setback mode, press the Setback key on the controller, toggle the setback contact input, or release the override. To release controller from emergency state, override a 0 to the Emergency input, toggle the emergency contact input, or press either the emergency or reset key. Releasing the override will return the controller to the state it was in previous to the emergency, either Normal or Setback.

The alarm, data error, and sensor error variables can be overridden, but this will not affect the controller. Overriding the low alarm variable will result in a change of status, but will not put the controller into low alarm mode. The local alarm modes can only be controlled locally. Only override these variables for diagnostic purposes, and release them for normal operation.

Binary Inputs, Sensor Error and Data Error

Sensor Error and Data Error binary inputs are used to indicate if something has gone wrong with the controller. The

Sensor Error is set when the sensor on the controller has a malfunction. This indicates that service should be done on the controller. Data Error indicates when some of the data stored on the device has been corrupted. The calibration and set point values should be checked on the controller.

Override Analog Output Command

The analog output variables can be overridden to change their values. The overridden value will be checked for validity. If invalid, the override command will be ignored, and the value will not change. The override flag will not be set when the value is ignored. The override command will be cleared when the variable is reset in the menus. The variable will not reset with the release command.

N2 Communications Description of Variables

77

Supported Commands

Command

Request Device ID

Synchronize Time Command

Poll without/With Ack Message

Read Analog Input Command

Read Binary Input Command

Read Analog Output Command

Write Analog Input

Write Binary Input

Write Analog Output

Override Analog Input Command

Override Binary Input Command

Override Analog Output Command

Override Release Request

Response

Returns 0x10

Acknowledged. There is no internal clock to synchronize.

Any change of status is returned

Variable value

Variable value

Variable Value

Acknowledge

Acknowledge

Acknowledge

Acknowledge

Acknowledge

Acknowledge

Acknowledge

Identify Device Type Command Returns 0x10H

Note

: Poll Without/With Ack Message will need to be sent twice in order to receive all of the possible change of status variables.

Variable Map

AO

AO

AO

AO

AO

AI

AO

AO

AO

AO

NPT

AI

AI

AI

AI

AI

AI

AO

AO

AO

AO

AO

AO

AO

6

7

8

9

1

2

3

4

5

4

5

6

7

NPA

1

2

3

10

11

12

13

14

15

16

Feature

Face Velocity

Current Face Velocity Setpoint

Flow Rate

Current Flow Rate Setpoint

Sash Position Percent

Sash Open Area

Damper or Valve Position

Normal Face Velocity Setpoint

Setback Face Velocity Setpoint

Min. Damper Position

Max. Damper Position

Normal Flow Setpoint

Setback Flow Setpoint

Minimum Flow Setpoint

Maximum Flow Setpoint

Normal Low Face Velocity Alarm Setpoint

Normal High Face Velocity Alarm Setpoint

Normal Low Flow Alarm Setpoint

Normal High Flow Alarm Setpoint

Setback Low Face Velocity Alarm Setpoint

Setback High Face Velocity Alarm Setpoint

Setback Low Flow Alarm Setpoint

Setback High Flow Alarm Setpoint fpm, m/s fpm, m/s cfm or L/s cfm or L/s

% ft

2

or m

2

% fpm, m/s fpm, m/s

%

% cfm or L/s cfm or L/s cfm or L/s cfm or L/s fpm, m/s fpm, m/s cfm or L/s cfm or L/s fpm, m/s fpm, m/s cfm or L/s cfm or L/s

Unit

78 Appendix B

NPT

AO

AO

AO

NPA

17

18

19

Feature

Setback Damper Position Setpoint

High Sash Position Alarm Setpoint

Units Value

Unit

%

%

0: English Units (fpm, cfm)

1: Metric Units (m/s, m

3

/h)

2: Metric Units (m/s, l/s)

BI

BI

BI

1

2

3

Low Velocity Alarm Status

High Velocity Alarm Status

Low Flow Alarm Status

0: Inactive

1: Active

0: Inactive

1: Active

0: Inactive

1: Active

BI

BI

BI

BI

BI

4

5

6

7

8

High Flow Alarm Status

High Sash Position Alarm Status

Velocity Sensor Error Status

Data Error Status

Setback Status

0: Inactive

1: Active

0: Inactive

1: Active

0: Inactive

1: Active

0: Inactive

1: Active

0: Inactive

1: Active

BI

9 Emergency Status

0: Inactive

1: Active

* Not available on standard Model FHC50s.

** The units of the variables are based on the units variable. When the units variable is set to 0 the values are in

English form. When the units variable is set to 1or 2 the units are metric. English is the default units.

N2 Communications Description of Variables

79

LonWorks

®

Object

Node Object Network Variables

SNVT

Number

4

5

6

7

Bit

1

2

3

4

5

Description

AL_LOW_LMT_1

Low Face Velocity Alarm

AL_HIGH_LMT_1

High Face Velocity Alarm

AL_LOW_LMT_2

Low Exhaust Flow Alarm

AL_HIGH_LMT_2

High Exhaust Flow Alarm

AL_ALM_CONDITION

Sash Alarm

SNVT Name

nviRequest nviSetTime nvoStatus nvoAlarm

Fume Hood Controller Object Network Variables

SNVT

Number

15

16

Bit Description

Setback Mode

Emergency Mode

SNVT Name nviControlMode nviEmergency

17 Remote Control Override

nviOverrideOn

24

18

19

20

21

22

23

5

6

7

8

9

0

1

2

3

4

Face Velocity

Flow Rate.

Damper or Valve Position

Sash Position Percent.

Sash Open Area.

Status

Setback Status

Low Velocity Alarm Status

High Velocity Alarm Status

Low Flow Alarm Status

High Flow Alarm Status

High Sash Position Alarm Status

Velocity Sensor Error Status

Data Error Status

Emergency Status

Remote Control Override Status

Normal Face Velocity Setpoint

nvoFaceVelocity nvoExhaust Flow nvoControlPos nvoSashPosPcnt nvoSashOpenArea nvoUnitState nvoNormFVSetp

SNVT Type

SNVT_obj_request

SNVT_time_stamp

SNVT_obj_status

SNVT_alarm

SNVT Type

SNVT_occupancy

SNVT_hvac_emerg

SNVT_switch

SNVT_speed_mil

SNVT_flow

SNVT_lev_percent

SNVT_lev_percent

SNVT_area

SNVT_state

SNVT_speed_mil

80 Appendix B

SNVT

Number

25

26

27

28

29

34

35

36

37

38

39

40

41

30

31

32

33

Bit Description

Setback Face Velocity Setpoint

Normal Low Face Velocity Alarm

Setpoint

Normal High Face Velocity Alarm

Setpoint

Setback Low Face Velocity Alarm

Setpoint

Setback High Face Velocity Alarm

Setpoint

Normal Flow Setpoint

Setback Flow Setpoint

Normal Low Flow Alarm Setpoint

Normal High Flow Alarm Setpoint

Setback Low Flow Alarm Setpoint

Setback High Flow Alarm Setpoint

Minimum Flow Setpoint

Maximum Flow Setpoint

Minimum Damper Setpoint

Maximum Damper Setpoint

Setback Damper Position Setpoint

High Sash Position Alarm Setpoint nciMaxSendTime nciMinSendTime nciSndDeltaFlow nciSndDeltaSpeed nciSndDeltaPos

SNVT Name SNVT Type nvoSetbFVSetp SNVT_speed_mil nvoNormLoFVAlmSetp SNVT_speed_mil nvoNormHiFVAlmSetp SNVT_speed_mil nvoSbLoFVAlmSetp SNVT_speed_mil nvoSbHiFVAlmSetp nvoNormFlowSetp nvoSetbFlowSetp nvoNmLoFloAlSetp nvoNmHiFloAlSetp nvoSbLoFloAlSetp nvoSbHiFloAlSetp nvoMinFlowSetp nvoMaxFlowSetp nvoMinDampSp nvoMaxDampSp nvoSetbCtrlPos nvoHiSashAlmPos

SNVT_speed_mil

SNVT_flow

SNVT_flow

SNVT_flow

SNVT_flow

SNVT_flow

SNVT_flow

SNVT_flow

SNVT_flow

SNVT_lev_percent

SNVT_lev_percent

SNVT_lev_cont

SNVT_lev_cont

LonWorks

®

Object

81

Description of LON SNVTs

SNVT

nviEmergency:

SNVT

nviControlMode:

SNVT

nviRequest object_request

SNVT

nviOverrideOn

Command Supported

EMERG_NORMAL

EMERG_PURGE

Action

Sets NORMAL mode

Sets EMERGENCY mode

NOTE

: All other commands set NORMAL mode

Command Supported Action

OC_OCCUPIED

OC_STANDBY

OC_UNOCCUPIED

Sets NORMAL mode

Sets SETBACK mode

Sets SETBACK mode

NOTE

: All other commands set NORMAL mode

Command Supported

CLEAR_ALARM

Action

Clears alarm (See SNVT nvoAlarm)

Value Sent Action

x.x 1 x.x 0

Moves damper to override position

Exit Override mode x.x is damper position between 0.0 to 100.0

82 Appendix B

FHC50 BACnet

®

MS/TP Protocol Implementation Conformance

Statement

Date:

April 7, 2010

Vendor Name:

TSI Inc.

Product Name:

Fume Hood Controller

Product Model Number:

FHC50-BAC

Applications Software Version:

1.0

Firmware Revision:

1.0

BACnet Protocol Revision:

2

Product Description:

TSI's Fume Hood Fume Hood Controller provides a closed-loop VAV control system for proper lab hood containment. controller assures safety by responding quickly during sash movement, or to disturbances within the sash plane, to maintain a constant face velocity and contain hazardous chemicals. The controller provides opportunities for energy savings, lower fan brake horsepower, smaller chillers and lower duct work cost by reducing the volume of air exhausted from a hood when the sash is not fully open. This model controller is capable of acting as a stand-alone device or as part of a building automation system via BACnet

®

MS/TP protocol.

BACnet Standardized Device Profile (Annex L):

BACnet Operator Workstation (B-OWS)

BACnet Building Controller (B-BC)

BACnet Advanced Application Controller (B-AAC)

BACnet Application Specific Controller (B-ASC)

BACnet Smart Sensor (B-SS)

BACnet Smart Actuator (B-SA)

List all BACnet Interoperability Building Blocks Supported (Annex K):

DS-RP-B

DS-WP-B

DS-RPM-B

Segmentation Capability:

DM-DDB-B

DM-DOB-B

DM-DCC-B

Segmented requests not supported

Segmented responses not supported

FHC50 BACnet

®

MS/TP Protocol Implementation Conformance Statement

83

Standard Object Types Supported:

Analog Input

Analog Value

Dynamically

Createable

No

No

Binary Input

No

Binary Value

No

Multi-state Input

No

Multi-state Value

No

Device Object

No

Dynamically

Deletable

No

No

No

No

No

No

No

Optional

Properties

Supported

Active_Text,

Inactive_Text

Active_Text,

Inactive_Text

State_Text

State_Text

Writable

Properties (Data

Type)

Present_Value

(Real)

Present_Value

(Enumerated)

Present_Value

(Unsigned Int)

Object Name

(Char String)

Max Master

(Unsigned Int)

Data Link Layer Options:

BACnet IP, (Annex J)

BACnet IP, (Annex J), Foreign Device

ISO 8802-3, Ethernet (Clause 7)

ANSI/ATA 878.1, 2.5 Mb. ARCNET (Clause 8)

ANSI/ATA 878.1, RS-485 ARCNET (Clause 8), baud rate(s)

MS/TP master (Clause 9), baud rate(s): 76.8k 38.4k, 19.2k, 9600 bps

MS/TP slave (Clause 9), baud rate(s):

Point-To-Point, EIA 232 (Clause 10), baud rate(s):

Point-To-Point, modem, (Clause 10), baud rate(s):

LonTalk, (Clause 11), medium:

Other:

Device Address Binding:

Is static device binding supported? (This is currently necessary for two-way communication with MS/TP slaves and certain other devices.)

Yes

No

Networking Options:

Router, Clause 6 - List all routing configurations, e.g., ARCNET-Ethernet, Ethernet-MS/TP, etc.

Annex H, BACnet Tunneling Router over IP

BACnet/IP Broadcast Management Device (BBMD)

Character Sets Supported:

Indicating support for multiple character sets does not imply that they can all be supported simultaneously.

ANSI X3.4

ISO 10646 (UCS-2)

IBM

®

/Microsoft

®

DBCS

ISO 10646 (UCS-4)

ISO 8859-1

JIS C 6226

If this product is a communication gateway, describe the types of non-BACnet

®

equipment/networks(s) that the gateway supports:

Not Applicable

84 Appendix B

BACnet

®

MS/TP Object Set

Feature

Face Velocity

Object

Type

Analog

Input

Device

Instance

1

Flow Rate

Damper or Valve

Position

Sash Position

Percent

Sash Open Area

MAC Address**

MAC ID**

Analog

Input

Analog

Input

Analog

Input

Analog

Input

Analog

Value

Analog

Value

2

3

4

5

1

2

Normal Face

Velocity Setpoint

Setback Face

Velocity Setpoint

Normal Low Face

Velocity Alarm

Setpoint

Normal High

Face Velocity

Alarm Setpoint

Setback Low

Face Velocity

Alarm Setpoint

Setback High

Face Velocity

Alarm Setpoint

Normal Flow

Setpoint

Analog

Value

Analog

Value

Analog

Value

Analog

Value

Analog

Value

Analog

Value

Analog

Value

3

4

5

6

7

8

9

Setback Flow

Setpoint

Analog

Value

Normal Low Flow

Alarm Setpoint

Analog

Value

Normal High

Flow Alarm

Setpoint

Analog

Value

10

11

12

N/A m/s fpm m/s fpm m/s cfm m

3

/h l/s cfm m

3

/h l/s cfm m

3

/h l/s cfm m

3

/h l/s fpm m/s fpm m/s fpm m/s fpm

Units

fpm m/s cfm m

3

/h l/s

%

% ft

2 m

2

-

Range

0 to 1000

0 to 5.08

0 to 10000

0 to 16990

0 to 4719

0 to 100

0 to 100

0 to 1000

0 to 93

1 to 127

1 to 999

0, 60 to 1000

0, 0.03 to 5.08

0, 60 to 1000

0, 0.03 to 5.08

0, 5 to 980

0, 0.03 to 4.98

0, 80 to 1000

0, 0.42 to 5.08

0, 5 to 980

0, 0.03 to 4.98

0, 80 to 1000

0, 0.42 to 5.08

0 to 10000

0 to 16990

0 to 4719

0 to 10000

0 to 16990

0 to 4719

0 to 10000

0 to 16990

0 to 4719

0 to 10000

0 to 16990

0 to 4719

Read/

Write

R

Notes

R

R

R

R

R/W

R/W

Communications will be lost until front-end updated with new MAC

Address

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

BACnet

®

MS/TP Object Set

85

Feature

Setback Low

Flow Alarm

Setpoint

Setback High

Flow Alarm

Setpoint

Min. Damper

Position

Max. Damper

Position

Minimum Flow

Setpoint

Maximum Flow

Setpoint

Setback Damper

Position Setpoint

High Sash

Position Alarm

Setpoint

Low Velocity

Alarm Status

High Velocity

Alarm Status

Low Flow Alarm

Status

High Flow Alarm

Status

High Sash

Position Alarm

Status

Velocity Sensor

Error Status

Data Error Status

Setback Status

Emergency

Status

Auto Baud

Emergency Mode

Object

Type

Analog

Value

Device

Instance

13

Analog

Value

Analog

Value

Analog

Value

Analog

Value

Analog

Value

Analog

Value

Analog

Value

Binary

Input

Binary

Input

Binary

Input

Binary

Input

Binary

Input

Binary

Input

Binary

Input

Binary

Input

Binary

Input

Multi-State

Multi-State

14

15

16

17

18

19

20

1

2

3

4

5

6

7

8

9

1

2

%

0: Inactive

1: Active

0: Inactive

1: Active

0: Inactive

1: Active

0: Inactive

1: Active

0: Inactive

1: Active

0: Inactive

1: Active

0: Inactive

1: Active

0: Inactive

1: Active

0: Inactive

1: Active

0: No Action

1 Set Auto Baud

1: Exit Emergency

Mode

2: Enter

Emergency Mode

3: Normal

% cfm m

3

/h l/s cfm m

3

/h l/s

%

Units

cfm m

3

/h l/s cfm m

3

/h l/s

%

Range

0 to 10000

0 to 16990

0 to 4719

0 to 10000

0 to 16990

0 to 4719

0 to 100

0 to 100

0 to 10000

0 to 16990

0 to 4719

0 to 10000

0 to 16990

0 to 4719

0 to 100

0, 10 to 105

0;1

0;1

0;1

0;1

0;1

0;1

0;1

0;1

0;1

0;1

1; 2; 3

Read/

Write

R/W

Notes

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R

R

R

R

R

R

R

R

R

R/W

Controller will reset variable to

0 after setting baud rate.

R/W

86 Appendix B

Feature

Setback Mode

Object

Type

Multi-State

Device

Instance

3

Units

1: Exit Setback

Mode

2: Enter Setback

Mode

3: Normal

Range

1; 2; 3

Read/

Write

R/W

Notes

Units Value Multi-State 4

1: fpm and cfm

2: m/s and m

3

/h

3: m/s & l/s

1; 2; 3 R/W

* The units are based on the value of the Units Value object. When the Units Value is set to 1 the units are in

English form. When the Units Value is set to 2 or 3 the units are metric. English is the default value.

** The Device Instance defaults 1,The device index is the Device Instance multiplied by 1000 plus the MAC

Address The default device index is therefore 1001.

BACnet

®

MS/TP Object Set

87

(This page intentionally left blank)

88 Appendix B

Appendix C

Wiring Information

Back Panel Wiring

PIN #

Input/Output/

Communication

1, 2 Input

3, 4 Output

5, 6 Communications

7, 8, 9 Output

10, 11 Output

12, 13 Output

14, 15 Output

16, 17 Input

18, 19 Input

20, 21 Input

22, 23 Input

Description

24 VAC to power Digital Interface Module (DIM).

0 to 10 VDC fume hood exhaust control signal. See menu item

CONTROL SIG

Not used on fume hood monitor.

LONworks

®

/BACnet

®

MS/TP communications (optional)

RS-485 communications to building management system (Modbus

®

or N2)

0 to 10 VDC/4 to 20 mA analog output signal. See menu item

ANALOG OUT TYPE .

Alarm Relay B. See menu items RELAYS OUT and RELAY SEL B .

Alarm Relay A. Low face velocity/flow alarm. See menu item RELAYS

OUT .

Non-powered input #1. Accepts sash sensor, sash switch, emergency

switch or night setback switch. See menu item INPUT SEL 1 .

Non-powered input #2. Accepts sash switch, emergency switch or night

setback switch. See menu item INPUT SEL 2 .

Non-powered input #3. Accepts sash switch, emergency switch or night

setback switch. See menu item INPUT SEL 3 .

0 to 10 VDC Flow input. See menu item FLOW DEVICE .

89

90

Figure 7

:

Wiring Diagram—Model FHC50-01 Controller

Appendix C

Wiring Information

Figure 8

:

Wiring Diagram—Model FHC50-02 Controller

91

92

Figure 9: Wiring Diagram—Model FHC50-03 Controller

Appendix C

Wiring Information

Figure 10: Wiring Diagram—Model FHC50-04 Controller

93

Figure 11: Model FHM10-01 Monitor Wiring

94 Appendix C

Wiring Information

Figure 12: Model FHM10-02 Monitor Wiring

95

(This page intentionally left blank)

96 Appendix C

Appendix D

Access Codes / Password

The Model FHM10 Fume Hood Monitor and FHC50 Fume Hood Controller may prompt the user to enter

an access code to enter the menu system. The access code screen is shown below in Figure 13. To enter the

access code, use the:

Quick keys as left and right arrows.

/

keys as up and down arrows.

 key selects the currently highlighted character.

ESC

key exits the access code entry screen.

The access code is

2887

.

Entering the access code enables access to the menu system for a 15-minute period.

0 1 2 3 4 5 6 7 8 9

A B C D E F G H I J

K L M N O P Q R S T

U V W X Y Z _

Enter password:

ESC

Figure 13. Access Code Screen

97

(This page intentionally left blank)

98 Appendix C

北 京 宝 云 兴 业 科 贸 有 限 公 司

Beijing Baoyun Xingye Science and Trading Co., Ltd.

地址:北京市西城区广安门外大街

168

号朗琴国际大厦

A

1606

网址: www.byxy.com.cn

 

E-mail:[email protected]

电话:

83131370/1559/0858

传真:

83131390

Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement

Table of contents