Sierra Monitor Corporation SENTRY 5000 Applicability & effectivity Instruction manual
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MODEL 5100-99-IT
IT Series
4-20 mA Transmitter
Version 2.0
APPLICABILITY & EFFECTIVITY
Effective for all Model 5100-99-IT-AL and 5100-99-IT-SS Transmitters manufactured after March 1, 2008
Instruction Manual Part Number T12005
Rev A
Model 5100-99-IT 4-20 mA Transmitter
THIS PAGE IS INTENTIONALLY LEFT BLANK
Contents
Model 5100-99-IT 4-20 mA Transmitter
TABLE OF CONTENTS
3.4
TRANSMITTER AND SENSOR INSTALLATION ............................................................................................9
3.5
TRANSMITTER ADDRESS SWITCH............................................................................................................14
5.
CALIBRATION ..............................................................................................................................................21
5.1
CALIBRATION FREQUENCY .......................................................................................................................21
5.2
CALIBRATION PREPARATION ....................................................................................................................21
5.2.1
CALIBRATION GAS DELIVERY METHODS.........................................................................................21
5.3
CALIBRATION PROCEDURE.......................................................................................................................21
5.3.1
SENSOR EXPOSURE TO GAS.............................................................................................................22
6.
SERVICE .......................................................................................................................................................23
6.1
TRANSMITTER CONFIGURATION ..............................................................................................................23
6.2
ENCLOSURE REPLACEMENT ....................................................................................................................23
6.3
TRANSMITTER REPLACEMENT .................................................................................................................24
6.4
SENSOR REPLACEMENT............................................................................................................................24
6.5
INSTALLATION INSPECTION ......................................................................................................................24
6.5.2
INSPECTION AND TROUBLESHOOTING GUIDE ...............................................................................24
6.5.3
IF MODULE DOES NOT RESPOND TO GAS ......................................................................................24
Contents
Model 5100-99-IT 4-20 mA Transmitter
6.5.4
IF THE TRANSMITTER DISPLAYS “STARTING” FOR MORE THAN 1 HOUR...................................24
7.
APPENDICES ...............................................................................................................................................25
APPENDIX A: SPECIFICATIONS ............................................................................................................................25
APPENDIX B: MODEL NUMBERS & PARTS LIST ..................................................................................................26
APPENDIX C: LIMITED WARRANTY ......................................................................................................................27
APPENDIX D: MODBUS MEMORY MAP.................................................................................................................28
Contents
Model 5100-99-IT 4-20 mA Transmitter
1. PRODUCT DESCRIPTION
1.1 GENERAL
The Model 5100-99-IT Transmitter is a member of the Information Technology “ IT” family of gas sensor transmitters.
IT transmitters offer a broad array of features, including:
• Integral alphanumeric LED display
• 4-20 mA output
• Modbus
RTU interface
• SMC Sentry interface
• 316 Stainless steel enclosure option
• Auxiliary integral relay option
• Remote display option
• Low maintenance and operation costs
The 5100-99-IT is designed and approved for installation and operation in hazardous locations.
1.2 PRODUCT CONFIGURATION
Various transmitter configuration options are available. Where applicable, these options are factory configured prior to shipme nt. Options which can be re-configured by the installer or field technician are fully described in this manual .
1.3 MODES OF OPERATION
1.3.1 SENTRY INTERFACE
IT gas sensor transmitter can be connected to on Sierra Monitor Sentry Model 5000 controllers. When it is connected to a Sentry system the IT transmitter must have a unique address which can be established by setting an address between 1 and 8 on the Transmitter Address Switch accessible from the cover plate as illustrated in Figur e 3-1. Figure 3-6 in this manual provides the wiring terminations for connections to the
Se ntry controller.
When the transmitter is operated in conjunction with a Sentry controller, the alarms outputs in the transmitter can both be set to “Sentry”, allowing the Sentry controller to manage alarm acknowledge and reset rather than the transmitter. The alarm relay outputs are triggered by the the transmitter and can be independent of the settings in the Sentry controller.
alarm values established in
The Sentry configuration allows daisy chain installation using the Sentry multiplex capability, thus reducing costs by avoiding the requirement for wiring junction boxes. The connector card has two sets of co nnections, allowing for a continuous run to the next transmitter.
®
Registered trademark of Schneider Electric
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Model 5100-99-IT 4-20 mA Transmitter
1.3.2 MODBUS OPERATION
An RS-485 Modbus RTU serial interface allows direct connection to standard PLCs and DCSs. The
Transmitter Address Switch (section 3.5) allows the user to select up to 16 different Modbus addresses.
Also, an additional 238 Modbus addresses (for a total of 254 different Modbus Addresses) are available via menu selection. Figure 3-6 in this manual provides the wiring terminations for Modbus connections. The
5100-XX-IT provides th a RS-485 connection. e additional terminal connectors to enable the user to connect In/Out terminations of
1.3.3 ANALOG OPERATION
The 4-20 mA interface allows direct connection to standard analog controllers or PLCs. The 5100-XX-IT 4-
20 mA connection can be wired as a Type
50.00.01-1975 Standard (see figure 3-5).
3 (3-wire) or Type 4 (4-wire) circuit as described by ANSI/ISA-
1.3.4 REMOTE ALARM RESET (DIGITAL INPUT) (Figure 3-7)
An input is available for connection of remote alarm reset/acknowledge. Figure 3-7 provides the wiring termination for connecting the remote alarm reset. Th is only resets local alarms, not Sentry alarms. This input can be wired as supervised or non-supervised.
Note that when the Remote Alarm Reset is must be present as outlined in Figure 3-7.
operated in a supervised mode that both the switch and resistor
1.3.5 OPTIONAL INTEGRAL RELAYS
The optional relays are integral to the transmitter and are rated as SPDT, 250 VAC, 8 Amps for the High
Alarm and Low Alarm relays and SPDT, 250 VAC, 2 Amp for the Trouble relay.
If the transmitter is provided with the optional rela
(Figure 3-2). R elay output connections are on P4. ys, it will include Terminal P4 on the interface board
1.3.6 MECHANICAL
The transmitter of comprised of the following three primary components:
1.3.7 ENCLOSURE
Standard on the 5100-99-IT-AL is an explosion-proof, rain-tight cast aluminum electrical housing (Figure 1-
B c
1) with three ¾” FNPT conduit hubs. The 5100-99-IT-SS (Figure 1-2) has a 316 Stainless Steel enclosure. oth enclosure covers have a hoices as shown in figure 1-3. viewing window. The design of the enclosures allows 3-way mounting
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Model 5100-99-IT 4-20 mA Transmitter
Figure 1-1
Model 5100-99-IT-AL & SS Transmitter –
Aluminum & Stainless Steel Enclosure, Dimensions
.
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Model 5100-99-IT 4-20 mA Transmitter
Figure 1-3
Model 5100-99-IT Transmitter – Mounting Options
1.3.8 TRANSMITTER ELECTRONICS
Electronic Assembly consist of one top transmitter board (connected to the cover plate) and a lower interface board. Connectors for wiring for power, signal interface and alarm relays are located on the interface board assembly
1.4 INTERCONNECT WIRING
Not supplied with the transmitter, but necessary to the installation and operation is the multi conductor wiring which connects the transmitter to its power source and controller. Before this wiring is installed it is important to read and understand the control system installation instructions to determine wiring requirements and alternatives.
1.5 POWER REQUIREMENTS
5100-99-IT operates on DC power between 10 VDC and 30 VDC. Regulated DC power must be supplied from a separate source, or from an approved Sentry or IT controller.
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Model 5100-99-IT 4-20 mA Transmitter
2. CAUTIONS & WARNINGS
2.1 INTRODUCTION
Although IT Transmitter is designed and constructed for installation and operation in industrial applications including "hostile" environments, caution should be taken to insure that the installation is made in compliance with this instruction manual and that certain procedures and conditions are avoided. This chapter discusses the necessary cautions. Read the entire chapter prior to installation of the equipment.
2.2 IT TRANSMITTERS - GENERAL
Avoid installing Transmitter where they will be unnecessarily exposed to wind, dust, water (esp. direct hose down), shock, or vibration. Observe temperature range limitations.
2.3 WIRING
The manufacturer recommends that extra caution be taken where the installation is near any sources of electromagnetic or radio frequency interference. Precautions include:
• Avoid running transmitter cable close to high power cables, radio transmission lines, or cables subject to pulses of high current.
• Avoid running cables near large electric motors or generators.
• When the transmitter is to be operated in analog (4-20mA output) mode shielded cable is required.
• All splices must be via either a termination hardware system or soldered. Improperly spliced cable can result in corrosion, resistance changes and system errors.
• Use low capacitance cable for RS-485 Modbus RTU Operation.
NOTE
Installation and wiring must be in accordance with the National Electrical Code. AC Voltage conductors are not to be run in the same conduit as DC voltage conductors.
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Model 5100-99-IT 4-20 mA Transmitter
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Model 5100-99-IT 4-20 mA Transmitter
3. INSTALLATION
NOTE
All transmitters are factory are pre-configured and calibrated.
Identify all components during unpacking and install using the factory configuration.
3.1 TRANSMITTER LOCATIONS
Select locations for each transmitter so that they are placed in areas accessible for calibration.
3.2 WIRING
3.2.1 ANALOG 4-20 mA OPERATION
The 4-20 mA output for the 5100-99-IT can be either 3-wire or 4-wire operation. If using 3-wire operation, use a minimum of 18 AWG, shielded, 3-conductor cable up to 2000’. For 4-wire operation, use a minimum of 2 each, 18 AWG, twisted, shielded, pair up to 2000’.
3.2.2 MODBUS OPERATION USING RS-485 CONNECTION
Use a minimum of 18 AWG, 2 conductor for DC power connection. No shield required. In addition use a minimum of 24 AWG, low capacitance, shielded data cable for RS-485 half duplex communication. The installation may be planned in a manner which provides up to 32 sensor modules on a single home run.
Refer to Figure 3-3. Units ship with BIAS jumpers connected. For all installations, except very long cable runs, leave these jumpers connected. The TERM jumpers should be installed in the last (furthest) module of every loop.
3.2.3 SENTRY OPERATION USING SMC SENTRY CONNECTION
Wire shall be rated as 600 volt tray cable, such as Belden (or equivalent) 27331 or 27331 AS (shielded). If high RFI or EMI levels exist wiring should be protected by conduit or shield. The installation may be planned in a manner which provides up to 4 sensor modules on a single home run to a Sentry controller.
NOTE
Be sure to follow all local electric code and safety requirements when installing the 5100-99-IT
Transmitter
3.2.4 GENERAL
Install conduit as required by local code or construction specifications. When transmitters are to be multiplexed for Sentry or RS-485 communication, two alternatives may be planned:
• Use multi-position positive contact terminals to connect daisy chain wiring and provide a pigtail to connect to the transmitter board.
NOTES
The drain wire of shielded cable must NOT be used as one of the conductors.
Installation and wiring must be in accordance with the National Electrical Code. Temperature rating of cable wire must be at least 75 o
C. If cable runs through higher temperature environments, it must be specified for that environment.
3.3 ENCLOSURE INSTALLATION
To protect the transmitter they should be removed from the enclosure and preserved until final installation and wiring termination.
Prior to installation and wiring:
1. Remove the transmitter from the module housing by:
• Unscrew the two captive panel screws in the face plate.
• Lift the transmitter out of the housing.
2. Install the module housing onto the end of the supply conduit and/or bolt into position as required.
NOTES
When housing earth grounding is required for the installation a grounding lug is located in the base of the enclosure. Install the earth ground wire under the green lug.
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Model 5100-99-IT 4-20 mA Transmitter
3
4
5
6
P2
1
2
P1
1
2
PCB Label
Switch
3
4
4-20 IN +
IN -
5 GND
6
7
4-20
IN +
IN -
OUT +
OUT -
PCB Label
RS 485
RS 485
+
-
S
+
-
S
Function
Digital Input SW +
Digital Input SW -
4-20 mA Input +
4-20 mA Input -
Ground
4-20 mA Output +
4-20 mA Output -
Function
RS 485 (+) (A)
RS 485 (-) (B)
RS 485 shield (Isolated GND)
RS 485 (+) (A)
RS 485 (-) (B)
RS 485 shield (Isolated GND)
P3B PCB Label
1 P
2 S
3 G
P3A
4 P
5 S
6 G
Function
Sentry Signal or Communication
Sentry Signal or Communication
P4 Connections are only available when the optional Relays are included
Function
Low Alarm Relay NC
Low Alarm Relay COM
Low Alarm Relay NO
Table 3-1
Transmitter External Interfaces (See Figure 3-2)
1. Establish the module address according to section 3.5.
NOTES
The starting delay period normally takes approximately 3 minutes but it depends on the sensor connected.
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Model 5100-99-IT 4-20 mA Transmitter
3.4 TRANSMITTER ADDRESS SWITCH
For digital interface applications the module address switch (or Modbus node) Figure 3-1 must be set per
Table 3-2:
P OSITION A DDRESS P OSITION A DDRESS
5
6
7
3
4
1
2
Sensor 1
Sensor 2
Sensor 3
Sensor 4
Sensor 5
Sensor 6
Sensor 7
9
A
B
C
D
E
F
Sensor 09
Sensor 10
Sensor 11
Sensor 12
Sensor 13
Sensor 14
Sensor 15
Menu
Table 3-2
Transmitter Address Switch Positions
NOTES
For Sentry applications only sensor addresses 1-8 are allowed. If using Modbus output sensor addresses 1-15 are available. Position 0 allows the Modbus Address to be set by software
menu, in the range 16-254.
Figure 3-1
Transmitter Face Plate
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Model 5100-99-IT 4-20 mA Transmitter
Figure 3-2
Interface Board Connectors
Figure 3-3
RS-485: Termination, BIAS Jumper
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Model 5100-99-IT 4-20 mA Transmitter
Figure 3-4
4-20mA Circuit Types
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Model 5100-99-IT 4-20 mA Transmitter
Figure 3-5
4-20mA Circuit Type Connections for 5100-99-IT
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5100-99-IT TO SENTRY
Model 5100-99-IT 4-20 mA Transmitter
5100-99-IT TO MODBUS DEVICE
Figure 3-6
Wiring Connections for Modbus and Sentry Interface
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Model 5100-99-IT 4-20 mA Transmitter
5100-99-IT Remote Alarm Reset (Unsupervised)
(Dry contact only unpowered)
P1
+
+
+
4.7K OHM (CUSTOMER SUPPLIED)
SWITCH IN
+
SWITCH IN
-
5 5100-99-IT Remote Alarm Reset (Supervised)
Figure 3-7
Wiring Connections for Remote Alarm Reset
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Model 5100-99-IT 4-20 mA Transmitter
4. OPERATION
4.1 INTRODUCTION – HUMAN-MACHINE INTERFACE SYSTEM
The transmitter utilizes a visual menu system operated by means of a magnet. A magnetic tool (5358-50) is supplied for this purpose. The menu system is used to configure alarm set-points, calibrate the transmitter, and for maintenance procedures and alarms acknowledge.
4.2 HUMAN-MACHINE INTERFACE
The transmitter menu system is operated by means of directing the magnet stick toward each of four independent hall-effect magnetic switches. The enclosure lid should remain on the unit. Each switch functions as if it is a manually activated panel key. The keys are located above and below the faceplate display and are labeled M , E , ▲ and ▼ as shown in Figure 4-1. The key functions are as follows:
: MODE
: ENTER
Key M
Key /\
Figure 4-1:
IT Transmitter – Menu Switch Locations
Key E
Key \/
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Model 5100-99-IT 4-20 mA Transmitter
4.3 MAIN MENU
Table 4-1 describes the primary man-machine interface operation (The blackened box is the selected menu function).
Key
M E
S T
M E
S T
M E
S T
M E
S T
Function Display
Mode
Enter
Up
Down
Switch [M]
Switch [E]
Description
Switch [▲] Previous Menu
Switch [▼] Next Menu
5100-99 First screen at power up: Model No.
Reference
VXX-XX-Second screen at power up: Version No.
M E
S T
START XX Third screen at start up: Start Count Up
XXX PPM Normal condition - default display
Mode ALMRSET: Mode Function - Alarm Reset
Banner: "Press [E] to reset alarm"
M E
S T
M E
S T
M E
S T
M E
S T
M E
S T
M E
S T
M E
S T
RESET Alarm Reset
XXX PPM Default Display
Mode ALMRSET: Mode Function - Alarm Reset
Mode
Mode
Mode
Mode
CALIB:--
SETUP:--
MAINT:--
EXIT-?--
Mode Function - Calibrate
Mode Function - Set Point Adjustments
Mode Function - Maintenance
Exit Menu
Table 5-1
Table 4-3
Table 4-4
Enter XXX PPM Apply Selected Mode (Exit)
XXX PPM Default Display (Once a minute the sensor displays module address)
Table 4-1 Master Menu
Table 4-2 describes the operational display values of the human-machine interface system.
D ISPLAY
START
XXX PPM
LXXX PPM
HXXX PPM
CXXX PPM
D ESCRIPTION
Delay from loss of power at start-up
Concentration
Low Alarm
High Alarm
Measures gas, concentration exceeds
100% of Full Scale
Calibration Mode
Acknowledged Function
Table 4-2 Operation Display Values
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Model 5100-99-IT 4-20 mA Module
4.4 CONFIGURE SET-POINTS
The transmitter set-points menu is used to initially set-up the alarm set points, relay actions, range, 4-20 mA action and RS-485/Sentry address and baud rates.
• Alarm Set-points: Once the Set-up menu is selected, press [E] to activate the Alarm Set-point screen. Use the [▲] or [▼] keys to select Low Alarm or High Alarm menu. Key [▲] will adjust the setpoint upwards and Key [▼] will adjust the value downwards. Once it reaches the desired setpoint, Key [E] will accept it and ACK will appear.
• Alarm Relay Set-up: Once the Set-up menu is selected, press key [▼] once and press [E] to activate the Relay Set-up menu. Use the [▲] or [▼] keys to select High Alarm or Low Alarm relay menu and press [E]. Use the [▲] or [▼] keys to select the correct alarm relay action for the application, Latch, Sentry or Non-Latch. Selecting “Sentry” enables the Sentry controller to make all alarm action decisions. * indicates the current selection.
• Range: Once the Set-up menu is selected, press key [▼] twice and press [E] to activate the Range
Set-up menu. Use the [▲] or [▼] keys to select Range menu and press [E]. When “Range” is selected menu provides any choices of ranges available for the gas type selected. Use the [▲] or
[▼] keys to select the desired range. If the “User” range is selected, use the [▲] or [▼] keys to adjust the high end of the range desired. See specifications (page 25) for optional ranges.
• 4-20mA: Once the Set-up menu is selected, press key [▼] three times and press [E] to activate the
4-20mA Set-up menu. Use the [▲] or [▼] keys to select Calib or CalibOut menu and press [E].
The “Calib” section of the menu allows the user to calibrate the 4 mA and 20 mA outputs. To calibrate the 4 mA and 20 mA outputs it is necessary to have an amp meter connected to the 5100-
XX-IT and upon selecting the 4 mA output calibration then the [▲] or [▼] keys can be used to adjust the 4 mA reading on the amp meter until it reads 4 mA. Similar steps can then be performed for the
20 mA output. The CalibOut section allows the user to select the 4-20 mA output action desired during calibration. * indicates the current selected value. Available selections include:
Track – the 4-20mA value tracks the calibration gas exposed to the transmitter
Zero – the 4-20mA value is held at 0mA during calibration
C1.50mA – the 4-20mA value is held at 1.50mA during calibration
C4.00mA – the 4-20mA value is held at 4.0mA during calibration.
TblOut – the TblOut menu allos user to select 2.5 mA or A user selected value for
Trouble mA signal.
DigInput – the DigInput menu allows user to select supervised or non-supervised input
WarmMin – the WarmMin menu allows user to select warm up time in minutes.
• RS-485 - Once the Set-up menu is selected, press key [▼] four times and press [E] to activate the
RS-485/Sentry Set-up menu. Use the [▲] or [▼] keys to select “Mode” or “Calib” menu and press
[E]. The “Mode” menu allows the user to select units including %LEL, % Vol, PPM % Full Scale, or
NA. The “Calib” section of the menu allows the user to calibrate the 4 mA and 20 mA outputs and inputs. Note that the 5100-99-IT has a rotary switch on the faceplate and it is used to select addresses 1-15. When connected to Sentry the user can select 1-8 and when using Modbus RS-
485 the user can select addresses 1-15. For Modbus addresses above 15, set the rotary switch to
0 and then use the “Address” menu to select any address between 16 and 254. The Baud rate menu allows the user to select a baud rate of 38400, 19200, 9600, 4800 or 2400. * indicates current selection. Sentry default is 9600.
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Model 5100-99-IT 4-20 mA Module
M E
S T
M E
S T
M E
S T
M E
S T
M E
S T
Key Function Display
--0%LEL-
M E
S T
M E
S T
M E
S T
M E
S T
M E
S T
M E
S T
M E
S T
M E
S T
Mode
Mode
Mode
Enter
Down
Down
Down
Down
ALMRSET: Mode Function - Alarm Reset
CALIB:--
SETUP:--Mode Function - Set Point Adjustments
Alarms
Relays
Relays
4-20mA
Dig Input
Default Display
Description
Mode Function - Calibrate
S.P. Function - Alarm Adjust
S.P. Function - Relays Adjust
S.P. Function - Range Adjust
S.P. Function - 4-20 mA Adjust
S.P. Function - RS-485/Sentry Output Adjust
High Alarm Set Point Adjustment Example
M E
S T
M E
S T
Enter
Enter
H.Alarm
HASP:40-
S.P. Function - High Alarm Adjust
High Alarm Set Point: current = 40
Use S or T keys to adjust to new set point
High Alarm Set Point: new = 55
M E
S T
M E
S T
Down (x5) HASP:55-
Enter ACK
H.Alarm
Momentary Acknowledge of new Set Point
S.P. Function - High Alarm Adjust
Enter
Down
Enter
Down
Down
H. Relay
L.Relay
Latch
Sentry
*Sentry
Relays Set Point Adjustment Example
S.P. Function - High Alarm Relay Adjust
S.P. Function - Low Alarm Relay Adjust
Use S or T keys to adjust to new relay action (Latch,
Sentry, NonLatc) * indicates current
NOTE: Sentry indicates that Sentry controls relay action and not the IT Sensor Module
Low Alarm Relay set to Sentry
Table 4-3A Set-Up Configuration
Reference
* A Below
* B Below
* Page 19
* Page 19
* Page 19
*A
*B
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Model 5100-99-IT 4-20 mA Module
M E
S T
M E
S T
M E
S T
M E
S T
M E
S T
M E
S T
M E
S T
Enter
Down
Enter
Down
Enter
Down
Enter
M E
S T
M E
S T
M E
S T
M E
S T
M E
S T
M E
S T
Enter
Enter
Enter
Enter
Down
Enter
M E
S T
M E
S T
M E
S T
M E
S T
M E
S T
Enter
Enter
Down
Down
Enter
M E
S T
M E
S T
Enter
Enter
M E
S T
M E
S T
Down
Enter
M E
S T
M E
S T
M E
S T
M E
S T
M E
S T
Enter
Enter
Mode
Down
Enter
Range
Range Adjustment Example
S.P. Function - Range Adjust
*100 PPM Select [E] to select or S or T to select another and press [E]
10 PPM Press [E] if selecting 0-10 PPM range
USER
100 PPM
Press [E] if selecting User adjustable range
Select [E] to select or S or T to select another and press [E]
*C
Mode
4-20 mA Adjustment Example
S.P. Function - Output Units Adjust *D
%LEL
Calib
Out: 4mA
4mA
ACK
Calib
CalibOut
Track
Use S or T keys to select units of output as %LEL, %Vol, PPM, %F.S. or mA
Use S or T to select for 4 mA output, 20 mA output, 4 mA input or 20 mA input
S.P. Function - 4-20 mA Calib Adjust *D
Use [E] to calibrate analog output, adjust output level with S or
T then press [E] when done
*D
Use S or T to select for 4 mA output, 20 mA output, 4 mA input or 20 mA input
Selects 4 mA
Momentary Acknowledge of new Set Point
S.P. Function - Calib Adjust
S.P. Function - Output during Calibration Adjust
Use S or T keys to select Track, Zero, C1.50mA, C4.00mA or User mA
*Track
Tbl Out
*T2.50mA
Dig Input
Track = Output during calibration tracks the calibration gas, Zero = Output is
Zero during calibration, C1.50mA = Output during calibration is 1.50 mA,
C4.00mA = Output during calibration is 4.0 mA
* = Current selection
S.P. Function - 4-20 mA Output during Trouble Adjust
Use S or T keys to select 2.50 mA or User select
S.P. Function - Digital Input Adjust
Sprvsd Use S or T keys to select Supervised or Unsupervised Digital Input
Warm Min S.P. Function - Warm Up Time Adjust
Warm 1 Use S or T keys to select between 1 and 8 minutes warm up time
Address
Addr:016
ACK
Address
Baud
*38400
RS-485 Adjustment Example
S.P. Function - RS-485 Address Adjust
Use S or T keys to enter new address
New address selected
S.P. Function - RS-485 Address Adjust
S.P. Function - RS-485 Baud Rate Adjust
Press [E] to select or [S] or [T] to select another
*E
Table 4-3B Set-Up Configuration
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Model 5100-99-IT 4-20 mA Module
4.5 MAINTENANCE FUNCTIONS
The maintenance menu enables the operator to view sensor and software versions. Sierra Monitor technical support has access to other values as needed. The maintenance menu operation is described in Table 4-4.
Reference Key Function Display
XXXPPM
M E
S T
M E
S T
M E
S T
M E
S T
M E
S T
M E
S T
Mode
Mode
Mode
Mode
Enter
Enter
ALMRSET: Mode Function - Alarm Reset
CALIB:--
SETUP:-
MAINT:--
Ver1.00aA
Module Software Version Number
CCC001
Default Display
Description
Mode Function - Calibrate
Mode Function - Set Point Adjustments
Mode Function - Maintenance
Module Custom Configuration Control number
Table 4-4
Maintenance Menu
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Model 5100-99-IT 4-20 mA Module
5. CALIBRATION
5.1 CALIBRATION FREQUENCY
The 5100-99-IT has been calibrated in the factory prior to shipment. It is recommended that the user check calibration before placing in service. Periodic functional tests are advisable for critical applications and hostile environments.
The transmitter microprocessor software includes high level self checking algorithms which provide continuous diagnostic and self adjustment. Users may select calibration frequencies dependent upon sensor type.
5.2 CALIBRATION PREPARATION
Calibration of the transmitter with sensor is accomplished by simple menu based steps and application of span gas.
NOTE
If an error is made during any stage of the calibration process, hold the magnet stick at the
Switch [M] for 10 seconds. A scrolling display will indicate “Calibration aborted” and the sensor module will exit the calibration activity and return to normal operating mode. The
calibration procedure can then be restarted.
Calibration must be performed only when the area is known to be clear of the applicable toxic gas. If necessary, use a portable instrument to confirm that there is no background toxic gas.
5.2.1 CALIBRATION GAS DELIVERY METHODS
Calibration gas is can be delivered to the sensors via the following delivery devices:
Model 5358-00: Calibration Adapter - used with portable calibrators. See 5-1.
Model 5360-00: Calibration Gas Delivery fitting - permanently installed fitting which allows tubing to be run to a convenient delivery location
5.3 CALIBRATION PROCEDURE
Table 5-1 shows the step by step process of the calibration procedure.
The procedures requires that the menu “keys” be activated using the magnet stick.
Each key pressed steps through the process of setting the zero value for clean air and then setting the span value.
At each of these steps, apply calibration gas of the value corresponding to the setting accepted on the sensor module display.
Figure 5-1
Model 5358-00 Calibration
Adapter
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Model 5100-99-IT 4-20 mA Module
5.3.1 SENSOR EXPOSURE TO GAS
Calibration gas must be delivered to the sensor using the flow rate and duration specified by the sensor manual.
M E
S T
M E
S T
M E
S T
M E
S T
Key Function Display
XXXPPM Default Display
M E
S T
M E
S T
M E
S T
Mode
Mode
ALMRSET:
CALIB:--
Description
Mode Function - Alarm Reset
Mode Function - Calibrate
M E
S T
M E
S T
Enter CAL-ZERO Banner: Apply zero gas, enter <E> when done
Enter
Enter
ACK
10PPM-SP
Operation: Confirm area clear of gas, or apply zero air to sensor.
Zero gas setting acknowledged
Banner: Select span, enter <E> to calibrate sensor
Banner: (5100-03-IT) Specify Cal gas <E> when done
C 4 PPM Banner: Apply span gas, then enter <E> to calibrate gas sensor
M E
S T
Enter
C 4 PPM
Operation: Apply calbration gas.
CXXXPPM
CAL-OK
WAIT-50
Operation: As gas is applied the reading will increase - wait 3 minutes
Calibration Passed - now remove gas
Operation: Fifty second time out before sensor is returned to service.
Sub-Routines
M E
S T
M E
S T
Up
10PPM-SP Banner: Select span, enter <E> when done
25PPM-SP
Operation: Change Span Gas Value to 25PPM
Up Adj-SPAN
Operation: User adjustable value
Enter 25PPM-SP
Operation: Ready for user adjustment
Enter C 25PPM
Banner: Apply 25PPM gas, then enter <E> to calibrate gas sensor
C 25PPM
Operation: Apply calbration gas.
Enter
Mode
CAL-FAIL
WAIT-50
(Any)
Operation: No calibration gas applied, or sensor did not respond correctly.
Operation: Fifty second time out before sensor is returned to service.
Operation: Hold magnet over Mode Switch for ten senconds to abort calibration
Banner: Calibration Aborted
XXXPPM Default Display
Table 5-1
Calibration
Reference
Sub A
Sub B
Sub A
Sub B
Sub C
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Model 5100-99-IT 4-20 mA Module
6. SERVICE
6.1 TRANSMITTER CONFIGURATION
The transmitter is comprised of the following sub-assemblies (Figure 6-1):
5100-99-IT Transmitter
SPL21810
SPL21823
Aluminum Enclosure
316SS Enclosure
6.2 ENCLOSURE REPLACEMENT
Figure 6-1
Transmitter Components
The enclosure should be replaced if the cover threads or conduit threads have been damaged, or if the enclosure has been damaged sufficiently that it no longer meets the required NEMA classification.
To replace the enclosure follow the transmitter removal instructions, remove the damaged enclosure from its conduit, install a new enclosure and replace the transmitter and sensor assembly.
NOTE: Refer to Appendix G for service information for the 5100-25-IT.
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Model 5100-99-IT 4-20 mA Module
6.3 TRANSMITTER REPLACEMENT
The transmitter assembly should be replaced when it is determined that it is unreliable, noisy or cannot be adjusted for calibration. This may occur due to age, corrosion or failed components.
To replace the transmitter assembly: a. Remove the cover of the main enclosure b. Unscrew the two thumb screws in the top of the cover plate, lift the assembly and rotate 90 o
to relieve the wiring service loop c. Unplug the sensor connector from the transmitter d. Plug connector into new transmitter (be sure to match numbers between connector and socket). e. Restore power and allow a minimum of 3 hours for stabilization before re-calibration
6.4 INSTALLATION INSPECTION
Prior to system start-up or trouble shooting the entire system should be visually inspected. The following are guidelines for that inspection:
• Controller installed in conformance to instruction manual recommendations.
• AC power is correctly grounded.
• Hot AC and relay connections have safety covers installed.
6.4.1.2 MOISTURE TRAPS AND RAINSHIELDS
• Conduit seals and drains installed to avoid moisture build up in electronics enclosure. Water accumulation in transmitter enclosures is a major cause of damage and system failures - take precautions to seal electrical conduits and provide moisture traps and drains to avoid water damage
• Rain-shields installed where applicable.
• DC Voltage to be applied to the transmitter must be between 10 VDC and 30 VDC.
6.5 INSPECTION AND TROUBLESHOOTING GUIDE
This inspection and troubleshooting guide can be used to step through the system start-up and to determine the corrective action if a fault occurs.
6.5.1.1 IF TRANSMITTER DOES NOT RESPOND TO GAS
1. Repeat calibration procedure.
2. Remove the gas and wait for the timer to completely count down.
3. Apply calibration gas and verify that the sensor sees calibration gas after calibration.
4. If the sensor still does not see gas, power cycle the unit and repeat calibration.
6.5.1.2 IF THE TRANSMITTER DISPLAYS “STARTING” FOR MORE THAN 1 HOUR
1. Make sure the sensor is placed in an ambient room temperature environment.
2. Power cycle the sensor.
3. Ensure that the sensor is not exposed to the gas of interest during warm-up.
6.5.1.3 IF THE TRANSMITTER DOES NOT DISPLAY THE CORRECT PPM
1. Power cycle the unit
2. Recalibrate the sensor.
6.5.1.4 IF THE DISPLAY SHOWS ‘F’
1. Power down the unit
2. Open the enclosure and unplug the sensor assembly from the transmitter board.
3. Plug the sensor back into the transmitter board carefully and ensure a secure fit.
4. Power up the unit.
6.5.1.5 IF THE DISPLAY SHOWS ‘C’
1. Complete calibration and exit to operating mode.
6.5.1.6 IF THE DISPLAY SHOWS ‘S’
1. Check connections with Sentry Connections.
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Model 5100-99-IT 4-20 mA Module
7. APPENDICES
APPENDIX A - SPECIFICATIONS
Output:
Display:
Relays (Optional):
Analog Output (Optional)
Signal Output:
Input:
Remote Alarm Reset:
Digital Input
Input
Electrical Data:
Power consumption:
Connection type:
Input voltage:
Fixed and Scrolling LED
8 Amp, High Alarm, Low Alarm, 2 Amp Trouble all SPDT
Analog 4-20 mA (Trouble 0 mA, Calibration 1.5 mA)
Sentry bus
Serial RS-485 Modbus RTU
Normally open digital input (supervised or non-supervised)
4-20 mA
2 watts
3 wire
24 VDC nominal: 10-30VDC
Operating Range:
Ambient Temp ( o
Ambient Temp ( o
5100-99-IT
F) 5 to 122 o
C) -15 to 50 o
F
C
Relative Humidity 15 – 90%
Enclosure:
Material - Standard:
Material - Stainless Steel Option:
Enclosure Hazardous Location
Approvals:
Dimensions:
(H x W x D)
Weight:
Housing:
Polyester powder-coated, sand-cast, copper-free aluminum
316 Stainless Steel
FM, ATEX, CSA
5.28 x 4.9 x 4.76 inches Al & SS
(10.56 x 9.8 x 9.52 cm)
2.7 lb. (1.3 Kg) (standard Aluminum enclosure)
5.4 lb. (2.6 Kg) 316 Stainless Steel
4X
Electrical Classification
FM Approved: Explosion proof, Class 1, Div. I, Groups B, C, D
Class I, Zone 1, Groups IIB+H2 IP66
Modbus:
Baud: 38400 (Adjustable 2400 to 38400 Baud)
Parity: None bit: 1 bits:
Control:
8
None
Memory map: Appendix E
Warranty:
Limited Warranty 2 years
Specifications subject to change without notice
Ordering Information:
5100 - XX - YY - ZZ
5100 Series -99=4-20mA - IT Series - Al (Aluminum Enclosure) - 01 Sentry, RS-485, 4-20mA, & Digital Input
- SS (Stainless Steel) - 02 = Sentry, RS-485, 4-20mA, Digital Input & Relays
Page: 25
Transmitter
Spare Parts
Model 5100-99-IT 4-20 mA Module
APPENDIX B: - MODEL NUMBERS & PARTS LIST
5100-99-IT-AL-01 4-20 mA Transmitter, AL
5100-99-IT-AL-02 4-20 mA Transmitter, Relay, AL
5100-99-IT-SS-01 4-20 mA Transmitter, SS
5100-99-IT-SS-02 4-20 mA Transmitter, Relay, SS
SPL21824 Transmitter
SPL21810 Enclosure, Transmitter, Aluminum
SPL21823
SPL21825
SPL21829
Enclosure Transmitter, 316SS
Interface Board without Relay
Interface Board with Relay
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Model 5100-99-IT 4-20 mA Module
APPENDIX C: LIMITED WARRANTY
SIERRA MONITOR CORPORATION warrants its products to be free from defects in workmanship or material under normal use and service for two years after date of shipment. SMC will repair or replace without charge any equipment found to be defective during the warranty period. Final determination of the nature and responsibility for defective or damaged equipment will be made by SMC personnel.
All warranties hereunder are contingent upon proper use in the application for which the product was intended and do not cover products which have been modified or repaired without SMC approval or which have been subjected to accident, improper maintenance, installation or application, or on which original identification marks have been removed or altered. This Limited Warranty also will not apply to interconnecting cables or wires, consumables (ie. calibration gases, batteries, sensors), nor to any damage resulting from battery leakage.
In all cases SMC’s responsibility and liability under this warranty shall be limited to the cost of the equipment.
The purchaser must obtain shipping instructions for the prepaid return of any item under this warranty provision and compliance with such instruction shall be a condition of this warranty.
Except for the express warranty stated above, SMC disclaims all warranties with regard to the products sold hereunder including all implied warranties of merchantability and fitness and the express warranties stated herein are in lieu of all obligations or liabilities on the part of SMC for damages including, but not limited to, consequential damages arising out of/or in connection with the use or performance of the product
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Model 5100-99-IT 4-20 mA Module
APPENDIX D: MODBUS MEMORY MAP
Read Register Table
40017
40018
40019
40020
40021
40022
40023
40024
40025
Register Description
40001 Concentration
40002
40003
Temperature
High Alarm Relay
40004
40005
Low Alarm Relay
Low Alarm Value
40006 High Alarm Value
40007 Reserved
Comments
Gas Concentration multiplied by 100
Temperature in degrees Celsius scaled by a factor of 100
Boolean indicating the High Alarm Status, 0 No Alarm, 1 High Alarm
Boolean indicating the Low Alarm Status, 0 No Alarm, 1 Low Alarm
Low alarm set point, used for activating Alarms
High alarm set point, used for activating High Alarms
40008 Reserved
40009 Reserved
40010 Reserved
40011 Trouble Bits 0 for no trouble
40012
40013
40014
40015
Trouble
High Alarm Immediate Like 40003, but never latched
Low Alarm Immediate
Random ID
1 for any trouble, 0 for no trouble
Like 40004, but never latched
Randomly generated permanent ID of sensor
40016 Restart
Run time – high
Run time – low
Max. gas value
Model
Range
Units
Temperature Units
Gas Scale
Temperature Scale
In minutes
In minutes
*scale (see 40024)
51005, 51003, 51004, 51006, etc
*scale (see 40024)
3 is PPM
0 is C, 1 is F
Value like 1 or 100
Value like 1 or 100
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Model 5100-99-IT 4-20 mA Module
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