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Temperature Panel Meter
Series LTI
Bulletin: T-LTI
Instruction Manual
J, K, T, E, R, S, B, N, C Thermocouples
100 or 1000 Ω Platinum, 10 Ω Copper, 120 Ω Nickel RTDs
1° or 0.1° Resolution
Averages up to 10 RTD Sensors
Automatic Cold Junction Compensation
NEMA 4X, IP65 Front
Universal 85-265 VAC, or 12/24 VDC Input Power Models
Large Dual-Line 6-Character Display, 0.60" & 0.46"
Programmable Displays & Function Keys
2 or 4 Relays + Isolated 4-20 mA Output Options
External 4-Relay & Digital I/O Expansion Modules
RS-232, RS-422/485 Serial Communication Options
Modbus
®
RTU Protocol Standard
Free Panel Meter Pro Software
DWYER INSTRUMENTS, INC.
PO Box 373 • Michigan City IN 46360 USA
Tel (800) 872-9141 • Fax (219) 872-9057
www.dwyer-inst.com
Temperature Panel Meter Instruction Manual
Disclaimer
The information contained in this document is subject to change without notice. Dwyer Instruments, Inc. makes no representations or warranties with respect to the contents hereof and specifically disclaims any implied warranties of merchantability or fitness for a particular purpose.
!
CAUTION: Read complete instructions prior to installation and operation of the meter.
WARNING: Risk of electric shock or personal injury.
Warning!
This product is not recommended for life support applications or applications where malfunctioning could result in personal injury or property loss. Anyone using this product for such applications does so at his/her own risk. Dwyer Instruments, Inc. shall not be held liable for damages resulting from such improper use.
Limited Warranty
Dwyer Instruments, Inc. warrants this product against defects in material or workmanship for the specified period under “Specifications” from the date of shipment from the factory. Dwyer Instruments, Inc.’s liability under this limited warranty shall not exceed the purchase value, repair, or replacement of the defective unit.
Registered Trademarks
All trademarks mentioned in this document are the property of their respective owners.
© 2010-2011 Dwyer Instruments, Inc. All rights reserved.
www.dwyer-inst.com
2
Temperature Panel Meter
Table of Contents
Instruction Manual
Table of Contents ---------------------------------------------------------- 3
INTRODUCTION ------------------------------------------------------------ 7
ORDERING INFORMATION --------------------------------------------- 7
SPECIFICATIONS ---------------------------------------------------------- 9
General ------------------------------------------------------------------------------- 9
Temperature Input -------------------------------------------------------------- 10
Relays ------------------------------------------------------------------------------ 11
Isolated 4-20 mA Transmitter Output ------------------------------------ 12
Modbus
®
RTU Serial Communications ---------------------------------- 13
PMA-12 Digital Input & Output Expansion Module ------------------ 13
COMPLIANCE INFORMATION ---------------------------------------- 14
Safety ------------------------------------------------------------------------------- 14
Electromagnetic Compatibility --------------------------------------------- 14
SAFETY INFORMATION ------------------------------------------------ 15
INSTALLATION ------------------------------------------------------------ 16
Unpacking ------------------------------------------------------------------------- 16
Panel Mounting Instructions ------------------------------------------------ 16
Configuration for 12 or 24 VDC Power Option ------------------------ 17
Connections ---------------------------------------------------------------------- 18
Connectors Labeling --------------------------------------------------------- 19
Power Connections ---------------------------------------------------------- 19
Signal Connections ---------------------------------------------------------- 20
Connections for Averaging RTD Sensors ------------------------------ 22
Modbus
®
RTU Serial Communications --------------------------------- 23
Relay Connections ----------------------------------------------------------- 23
Switching Inductive Loads -------------------------------------------------- 24
4-20 mA Output Connections ---------------------------------------------- 25
Analog Output Transmitter Power Supply ------------------------------ 25
External Relays & Digital I/O Connections ----------------------------- 26
Interlock Relay Feature ----------------------------------------------------- 27
SETUP AND PROGRAMMING ---------------------------------------- 28
Front Panel Buttons and Status LED Indicators --------------------- 29
Display Functions & Messages -------------------------------------------- 30
Main Menu ------------------------------------------------------------------------ 33
3
Temperature Panel Meter Instruction Manual
Setting Numeric Values ------------------------------------------------------ 34
Reset Menu (reset) ------------------------------------------------------------ 34
Control Menu (Contrl) -------------------------------------------------------- 34
Setting Up the Meter (setup) ------------------------------------------------ 35
Setting the Input Signal (input) ------------------------------------------ 37
Selecting the Temperature Scale (F or C) ---------------------------- 37
Setting the Decimal Point (dEc pt) -------------------------------------- 37
Setting the Display Parameter & Intensity (dsplay) ----------------- 37
Display Setup Menu --------------------------------------------------------- 38
Character Set for Engineering Units Display (d unit) -------------- 39
Setting the Relay Operation (relay) ------------------------------------ 40
Setting the Relay Action ---------------------------------------------------- 42
Programming Set and Reset Points ------------------------------------- 43
Setting Fail-Safe Operation ------------------------------------------------ 43
Programming Time Delay -------------------------------------------------- 43
Relay Action for Loss of Input (Input Break) --------------------------- 43
Relay and Alarm Operation Diagrams ----------------------------------- 45
High Alarm Operation (Set > Reset) ------------------------------------- 45
Low Alarm Operation (Set < Reset) -------------------------------------- 46
High Alarm with Fail-Safe Operation (Set > Reset) ------------------ 47
Low Alarm with Fail-Safe Operation (Set < Reset) ------------------- 48
Relay Alternation Control Operation ------------------------------------- 49
Relay Sampling Operation ------------------------------------------------- 50
Signal Loss or Input Break Relay Operation --------------------------- 51
Time Delay Operation ------------------------------------------------------- 52
Relay Operation Details ------------------------------------------------------ 53
Overview ------------------------------------------------------------------------ 53
Relays Auto Initialization ---------------------------------------------------- 53
Fail-Safe Operation ---------------------------------------------------------- 53
Front Panel LEDs ------------------------------------------------------------- 54
Latching and Non-Latching Relay Operation -------------------------- 54
Non-Latching Relay (Auto) ------------------------------------------------- 55
Non-Latching Relay (A-nman) --------------------------------------------- 55
Latching Relay (LatcH) ----------------------------------------------------- 55
Latching Relay (Lt-Clr) ---------------------------------------------------- 56
Acknowledging Relays ------------------------------------------------------ 56
Setting Up the Interlock Relay (Force On) Feature ------------------ 57
Scaling the 4-20 mA Analog Output (Aout) ---------------------------- 58
Setting Up the Password (pass) ------------------------------------------- 59
Protecting or Locking the Meter ------------------------------------------- 59
Making Changes to a Password Protected Meter -------------------- 60
4
Temperature Panel Meter Instruction Manual
Disabling Password Protection -------------------------------------------- 60
Advanced Features Menu ---------------------------------------------------- 61
Advanced Features Menu & Display Messages ---------------------- 62
Offset Adjust (Adjust) ------------------------------------------------------ 63
Recalibration of the Meter (t CAL) --------------------------------------- 64
Noise Filter (filter) -------------------------------------------------------- 66
Noise Filter Bypass (bypass) ---------------------------------------------- 66
Modbus
®
RTU Serial Communications (serial) --------------------- 67
Select Menu (SElect) ------------------------------------------------------- 68
Analog Output Programming (AoutPr) ---------------------------------- 69
Programmable Function Keys User Menu (user) -------------------- 70
Internal Temperature Calibration (ICAL) -------------------------------- 71
Meter Copy Function (Copy) ----------------------------------------------- 74
METER OPERATION ----------------------------------------------------- 76
Front Panel Buttons Operation -------------------------------------------- 76
Function Keys Operation ---------------------------------------------------- 76
Maximum/Minimum Readings ---------------------------------------------- 77
TROUBLESHOOTING ---------------------------------------------------- 78
Diagnostics Menu (diag) ----------------------------------------------------- 78
Determining Software Version -------------------------------------------- 78
Reset Meter to Factory Defaults ------------------------------------------- 79
Factory Defaults & User Settings ----------------------------------------- 80
Troubleshooting Tips --------------------------------------------------------- 83
MOUNTING DIMENSIONS ---------------------------------------------------- 84
5
Temperature Panel Meter
Table of Figures
Instruction Manual
Figure 1. 1/8 DIN Panel Cutout Dimensions ..................................... 16
Figure 2. Panel Mounting Details ...................................................... 17
Figure 3. Jumper Configuration for 12/24 VDC Power .................... 17
Figure 4. Connector Labeling for Fully Loaded LTI ......................... 19
Figure 5. Power Connections ............................................................ 19
Figure 6. Thermocouple Input Connections .................................... 20
Figure 7. Three-Wire RTD Input Connections .................................. 21
Figure 8. Two-Wire RTD Input Connections ..................................... 21
Figure 9. Four-Wire RTD Input Connections .................................... 22
Figure 10. Average Temperature RTD Input Connections .............. 22
Figure 11. Relay Connections ........................................................... 23
Figure 12. AC and DC Loads Protection ........................................... 24
Figure 13. Low Voltage DC Loads Protection .................................. 24
Figure 14. 4-20 mA Output Connections .......................................... 25
Figure 15. Expansion Modules & DIN Rail Mounting Kit ................. 26
Figure 16. External Relays Module Connections ............................. 26
Figure 17. Digital I/O Module Connections ....................................... 27
Figure 18. Interlock Connections ...................................................... 27
Figure 19. Acknowledge Relays w/Function Key or Digital Input .. 56
Figure 20. Meter Copy Connection ................................................... 74
Figure 21. Meter Dimensions - Side View ......................................... 84
Figure 22. Meter Dimensions - Top View .......................................... 84
Figure 23: 1/8 DIN Panel Cutout Template ....................................... 85
6
Temperature Panel Meter Instruction Manual
INTRODUCTION
The LTI meter boasts specifications and functionality that clearly makes it one of the most advanced temperature meters available. Its dual-line 6-character display, function keys, and optional expansion modules are only a few of the features you will find on the LTI.
A fully loaded LTI meter has the following: four SPDT relays, 4-20 mA output, and one 24 VDC power supply to power the 4-20 mA output. The LTI capabilities may be enhanced by adding the following external expansion modules: four SPST relays –creating an eight-relay temperature meter–, two digital I/O modules with four inputs and four outputs each, and RS-232 or RS-485 communication adapters.
The eight relays can be used for alarm indication or temperature control applications. The 4-20 mA isolated output, Modbus
®
RTU serial communications, and digital I/O options make the LTI an excellent addition to any system.
ORDERING INFORMATION
85-265 VAC
Model
12/24 VDC
Model
Options Installed
LTI-101
LTI-121
LTI-201
LTI-221
4-20 mA output
2 relays & 4-20 mA output
LTI-141 LTI-241 4 relays & 4-20 mA output
Accessories
Model Description
PMA-01
PMA-02
PMA-03
PMA-04
PMA-05
PMA-06
PMA-07
PMA-08
PMA-09
PMA-10
PMA-11
PMA-12
RS-232 serial adapter
Meter copy cable
RS-422/485 serial adapter
RS-232 to RS-422/485 isolated converter
RS-232 to RS-422/485 non-isolated converter
USB to RS-232 non-isolated converter
USB to RS-422/485 isolated converter
USB to RS-422/485 non-isolated converter
Suppressor (snubber): 0.01 µF/470
, 250 VAC
DIN rail mounting kit for two expansion modules
4 SPST (Form A) relays
4 digital inputs & 4 digital outputs (2 may be connected)
7
Temperature Panel Meter Instruction Manual
Enclosures
Model Description
PME-01
PME-02
PME-12
PME-13
PME-14
PME-15
PME-16
PME-24
PME-25
PME-26
PME-34
PME-35
PME-36
PME-44
PME-45
PME-46
Low-Cost Plastic Enclosure for 1 Meter
Low-Cost Plastic Enclosure for 2 Meters
Plastic Enclosure for 2 Meters
Plastic Enclosure for 3 Meters
Plastic Enclosure for 4 Meters
Plastic Enclosure for 5 Meters
Plastic Enclosure for 6 Meters
Plastic Enclosure for 4 Meters
Plastic Enclosure for 5 Meters
Plastic Enclosure for 6 Meters
Stainless Steel Enclosure for 4 Meters
Stainless Steel Enclosure for 5 Meters
Stainless Steel Enclosure for 6 Meters
Steel Enclosure 4 Meters
Steel Enclosure 5 Meters
Steel Enclosure 6 Meters
8
Temperature Panel Meter Instruction Manual
SPECIFICATIONS
Except where noted all specifications apply to operation at +77°F (+25°C).
General
DISPLAY
Main display: 0.60" (15 mm) high red LEDs; second display: 0.46" (12 mm) high red LEDs.
Both displays have six characters with leading zero blanking. Temperature value is four or five-digit F/C, based on configuration.
1
or 0.1 for all thermocouples and RTD inputs.
Eight user selectable intensity levels.
RESOLUTION
DISPLAY
INTENSITY
DISPLAY
UPDATE RATE
OVERRANGE
5/second (200 ms).
UNDERRANGE
PROGRAMMING
METHODS
NOISE FILTER
NORMAL MODE
REJECTION
ISOLATION
Display flashes
99999
.
Display flashes
-9999
.
Four front panel buttons, digital inputs, Modbus
®
registers, PC with Panel Meter Pro software, or cloning using Copy function.
FUSE
Programmable from 2 to 199 (0 will disable filter).
FILTER BYPASS Programmable from 0.1 to 99.9% of calibrated span.
RECALIBRATION All ranges are calibrated at the factory. Recalibration is recommended at least every 12 months.
MAX/MIN
DISPLAY
PASSWORD
NON-VOLATILE
MEMORY
Max/min readings reached by the process are stored until reset by the user or until power to the meter is turned off.
Three programmable passwords restrict modification of programmed settings.
Pass 1: Allows use of function keys and digital inputs.
Pass 2: Allows use of function keys, digital inputs and editing set/reset points.
Pass 3: Restricts all programming, function keys, and digital inputs.
All programmed settings are stored in non-volatile memory for a minimum of ten years if power is lost.
POWER
OPTIONS
85-265 VAC 50/60 Hz, 90-265 VDC, 20 W max or jumper selectable 12/24 VDC
10%, 15 W max.
Required external fuse: UL Recognized, 5 A max, slow blow; up to 6 meters may share one 5 A fuse.
Greater than 60 dB at 50/60 Hz.
4 kV input/output-to-power line.
500 V input-to-output.
9
Temperature Panel Meter
OVERVOLTAGE
CATEGORY
Instruction Manual
Installation Overvoltage Category II:
Local level with smaller transient overvoltages than Installation Overvoltage Category III.
ENVIRONMENTAL Operating temperature range: -4 to 149°F (-20 to 65°C).
Storage temperature range: -40 to 185°F (-40 to 85°C).
Relative humidity: 0 to 90% non-condensing.
CONNECTIONS
Removable screw terminal blocks accept 12 to 22 AWG wire, RJ45 for external relays, digital I/O, and serial communication adapters.
ENCLOSURE
1/8 DIN, high impact plastic, UL 94V-0, color: black.
MOUNTING
1/8 DIN panel cutout required:
3.622" x 1.772" (92 mm x 45 mm)
Two panel mounting bracket assemblies are provided.
Screw terminal connectors: 5 lb-in (0.56 Nm).
TIGHTENING
TORQUE
OVERALL
DIMENSIONS
WEIGHT
WARRANTY
4.68" x 2.45" x 5.64" (119 mm x 62 mm x 143 mm)
(W x H x D).
9.5 oz (269 g).
1 year parts & labor.
Temperature Input
INPUTS
Thermocouple: J, K, T, E, R, S, B, N, C;
RTD: 100 Ω platinum (0.00385 & 0.00392 coefficients),
10 Ω copper, 120 Ω nickel, 1000 Ω platinum (0.00385 &
0.00392 coefficients).
Automatic, fixed, no user calibration needed.
COLD
JUNCTION
REFERENCE
TEMPERATURE
DRIFT
OFFSET
ADJUSTMENT
3.6F (2C) max from 32 to 149°F (0 to 65C) ambient temperature.
7.2F (4C) max from -4 to 32°F (-20 to
0
C) ambient temperature.
User programmable offset adjust ±50.0 degrees. This parameter allows the user to apply an offset value to the temperature being displayed.
Greater than 100 k
.
INPUT
IMPEDANCE
SENSOR BREAK
DETECTION
Open TC or RTD sensor indicated by display flashing oPEn,
relays can be programmed to go “On”, “Off”, or to “Ignore”
(Note: Ignore is detected as an upscale condition).
Analog output goes to the programmed sensor break value.
10
Temperature Panel Meter
RTD
AVERAGING
Instruction Manual
Up to 10 RTDs connected in parallel can be averaged.
ACCURACY & RANGES
Type Range (°F) Accuracy Range (°C) Accuracy
E
R
S
B
J
K
T
-200 to 2000
-200 to 2400
-200 to 752
-50 to 3000
±1.8°F
±1.8°F
±1.8°F
-200 to 1800 ±1.8°F
-50 to 3000 ±3.6°F
±3.6°F
752 to 3300 ±3.6°F
N
C
-100 to 2300 ±3.6°F
32 to 4100 ±3.6°F
10
100
-328 to 500
-328 to 1562
120
-110 to 500
1000
-328 to 900
±0.2°F
±0.7°F
±0.2°F
±0.7°F
-129 to 1093 ±1°C
-129 to 1316 ±1°C
-129 to 400 ±1°C
-129 to 982 ±1°C
-46 to 1649 ±2°C
-46 to 1649 ±2°C
400 to 1816 ±2°C
-73 to 1260 ±2°C
0 to 2260 ±2°C
-200 to 260 ±0.1°C
-200 to 850 ±0.4°C
-79 to 260 ±0.1°C
-200 to 482 ±0.4°C
Relays
RATING
NOISE
SUPPRESSION
DEADBAND
HIGH OR LOW
ALARM
RELAY
OPERATION
2 or 4 SPDT (Form C) internal and/or 4 SPST (Form A) external; rated 3 A @ 30 VDC and 125/250 VAC resistive load; 1/14 HP (≈ 50 W) @ 125/250 VAC for inductive loads.
Noise suppression is recommended for each relay contact switching inductive loads; see page 24 for details.
0-100% of span, user programmable.
User may program any alarm for high or low trip point.
Unused alarm LEDs and relays may be disabled (turn off).
Automatic (non-latching).
Latching (requires manual acknowledge).
Sampling (based on time).
Relay alternation control (2 to 8 relays).
Off (disable unused relays and enable Interlock feature).
Manual on/off control mode.
11
Temperature Panel Meter
RELAY RESET
Instruction Manual
User selectable via front panel buttons or digital inputs.
1. Automatic reset only (non-latching), when the input passes the reset point.
2. Automatic + manual reset at any time (non-latching).
3. Manual reset only, at any time (latching).
4. Manual reset only after alarm condition has cleared (L).
Note: Front panel button or digital input may be assigned to acknowledge relays programmed for manual reset.
TIME DELAY
0 to 999.9 seconds, on & off relay time delays.
Programmable and independent for each relay.
FAIL-SAFE
OPERATION
AUTO
INITIALIZATION
Programmable and independent for each relay.
Note: Relay coil is energized in non-alarm condition.
In case of power failure, relay will go to alarm state.
When power is applied to the meter, relays will reflect the state of the input to the meter.
Isolated 4-20 mA Transmitter Output
OUTPUT
SOURCE
PV (temperature), max, min, set points 1-8, Modbus input, or manual control mode.
SCALING RANGE 1.000 to 23.000 mA for any display range.
®
PV
CALIBRATION
ANALOG OUT
PROGRAMMING
Factory calibrated 0.0 to 2000.0 = 4-20 mA output.
23.000 mA maximum for all parameters:
Overrange, underrange, max, min, and break.
ACCURACY
TEMPERATURE
DRIFT
ISOLATED
TRANSMITTER
POWER SUPPLY
± 0.1% of span ± 0.004 mA.
0.22 µA/°F max from 32 to 149°F
(0.4 µA/°C from 0 to 65°C),
0.44 µA/°F max from -4 to 32°F
(0.8 µA/°C from -20 to 0°C).
Note: Analog output drift is separate from input drift.
Terminals I+ & R: 24 VDC
5% @ 40 mA maximum; may be used to power the 4-20 mA output or other devices.
Refer to Figure 4 on page 19 and Figure 14 on page 25.
EXTERNAL LOOP
POWER SUPPLY
35 VDC maximum.
OUTPUT LOOP
RESISTANCE
Power supply
24 VDC
35 VDC (external)
Minimum
10
Maximum
700
100
1200
12
Temperature Panel Meter Instruction Manual
Modbus
®
RTU Serial Communications
SLAVE ID
BAUD RATE
TRANSMIT
TIME DELAY
DATA
1 – 247 (Meter address).
300 – 19,200 bps.
Programmable between 0 and 199 ms or transmitter always on for RS-422 communication.
8 bit (1 start bit, 1 or 2 stop bits).
PARITY
BYTE-TO-BYTE
TIMEOUT
Even, Odd, or None with 1 or 2 stop bits.
0.01 to 2.54 sec.
TURN AROUND
DELAY
Less than 2 ms (fixed).
Note: Refer to the Modbus
®
Register Tables located at www.dwyer-inst.com for details.
PMA-12 Digital Input & Output Expansion Module
CHANNELS
SYSTEM
DIGITAL INPUT
LOGIC HIGH
DIGITAL INPUT
LOGIC LOW
DIGITAL OUTPUT
LOGIC HIGH
DIGITAL OUTPUT
LOGIC LOW
SOURCE
CURRENT
SINK
CURRENT
+5 V
TERMINAL
4 digital inputs & 4 digital outputs per module.
Up to 2 modules for a total of 8 inputs & 8 outputs.
3 to 5 VDC.
0 to 1.25 VDC.
3.1 to 3.3 VDC.
0 to 0.4 VDC.
10 mA maximum output current.
1.5 mA minimum input current.
To be used as pull-up for digital inputs only.
Connect normally open contacts across +5 V & DI 1-4.
13
Temperature Panel Meter Instruction Manual
COMPLIANCE INFORMATION
Safety
UL & c-UL LISTED
UL FILE NUMBER
FRONT PANEL
LOW VOLTAGE
DIRECTIVE
USA & Canada.
UL 508 Industrial Control Equipment.
E212517.
UL Type 4X, NEMA 4X, IP65; panel gasket provided.
EN 61010-1:2001.
Safety requirements for measurement, control, and laboratory use.
Electromagnetic Compatibility
EMISSIONS
EN 55022:2006/A1:2007.
Class A ITE emissions requirements.
Radiated
Emissions
AC Mains
Conducted
Emissions
IMMUNITY
Class A.
Class A.
RFI - Amplitude
Modulated
EN 61326-1:2006.
Measurement, control, and laboratory equipment.
EN 61000-6-2:2005.
EMC heavy industrial generic immunity standard.
80 -1000 MHz 10 V/m 80% AM (1 kHz).
1.4 - 2.0 GHz 3 V/m 80% AM (1 kHz).
2.0 - 2.7 GHz 1 V/m 80% AM (1 kHz).
±2kV AC mains, ±1kV other. Electrical Fast
Transients
Electrostatic
Discharge
±4kV contact, ±8kV air.
RFI - Conducted 10V, 0.15-80 MHz, 1kHz 80% AM.
AC Surge ±2kV Common, ±1kV Differential.
Surge 1KV (CM).
3 A/m 70%V for 0.5 period. Power-Frequency
Magnetic Field
Voltage Dips
Voltage
Interruptions
40%V for 5 & 50 periods.
70%V for 25 periods.
<5%V for 250 periods.
14
Temperature Panel Meter
Note:
Instruction Manual
Testing was conducted on LTI meters installed through the covers of grounded metal enclosures with cable shields grounded at the point of entry representing installations designed to optimize EMC performance.
Declaration of Conformity available at www.dwyer-inst.com.
SAFETY INFORMATION
!
CAUTION: Read complete instructions prior to installation and operation of the meter.
WARNING: Risk of electric shock or personal injury.
WARNING!
Hazardous voltages exist within enclosure. Installation and service should be performed only by trained service personnel.
15
Temperature Panel Meter Instruction Manual
INSTALLATION
There is no need to remove the meter from its case to complete the installation, wiring, and setup.
Instructions are provided for setting up a 12/24 VDC powered meter to operate from 12 VDC power, see page 17.
Unpacking
Remove the meter from box. Inspect the packaging and contents for damage. Report damages, if any, to the carrier.
If any part is missing or the meter malfunctions, please contact your supplier or the factory for assistance.
Panel Mounting Instructions
Prepare a standard 1/8 DIN panel cutout – 3.622" x 1.772" (92 mm x
45 mm). Refer to Figure 1 below, for more details.
Clearance: allow at least 6.0" (152 mm) behind the panel for wiring.
Panel thickness: 0.04" - 0.25" (1.0 mm - 6.4 mm).
Recommended minimum panel thickness to maintain Type 4X rating: 0.06" (1.5 mm) steel panel, 0.16" (4.1 mm) plastic panel.
Remove the two mounting brackets provided with the meter (back-off the two screws so that there is ¼" (6.4 mm) or less through the bracket. Slide the bracket toward the front of the case and remove).
Insert meter into the panel cutout.
Install mounting brackets and tighten the screws against the panel. To achieve a proper seal, tighten the mounting bracket screws evenly until meter is snug to the panel along its short side. DO NOT OVER TIGHTEN, as the rear of the panel may be damaged.
Note: See
Figure 23
on page 85 for
1/8 DIN Panel Cutout Template
A
3.622" (92mm)
B
1.772"
(45mm)
Square Corners to 0.060"
(1.5mm) Max Radius
Panel Cutout to DIN 43700
Refer to page
84 for mounting dimensions
Tolerances:
A: +0.032 (+0.8mm)
-0.000 (-0.0mm)
B: +0.024 (+0.6mm)
-0.000 (-0.0mm)
Figure 1. 1/8 DIN Panel Cutout Dimensions
16
Temperature Panel Meter
Gasket
Panel
Instruction Manual
Removable
Connectors
Mounting
Bracket
Mounting
Screw
Figure 2. Panel Mounting Details
Configuration for 12 or 24 VDC Power Option
Do not exceed voltage rating of the selected configuration.
Meters equipped with the 12/24 VDC power option are shipped from the factory ready to operate from 24 VDC.
To configure the meter for 12 VDC power:
1. Remove all the connectors.
2. Unscrew the back cover.
3. Slide the back cover about 1 inch.
4. Configure the J9 jumper, located behind the power connector, for 12 V as shown below.
J9 CONFIGURATION
MAIN BOARD
M-LINK
24 VDC
12 VDC
POWER
+
_ J9
12 V
24 V
Factory
Default
Figure 3. Jumper Configuration for 12/24 VDC Power
17
Temperature Panel Meter Instruction Manual
Connections
All connections are made to removable screw terminal connectors located at the rear of the meter.
!
Use copper wire with 140°F (60°C) or 140/167°F
(60/75°C) insulation for all line voltage connections.
Observe all safety regulations. Electrical wiring should be performed in accordance with all applicable national, state, and local codes to prevent damage to the meter and ensure personnel safety.
18
Temperature Panel Meter
Warning!
Instruction Manual
Connectors Labeling
The connectors’ label, affixed to the meter, shows the location of all connectors available with requested configuration.
Do not connect any equipment other than Dwyer
Instruments, Inc.’s expansion modules, cables, or meters to the RJ45 M-LINK connector. Otherwise damage will occur to the equipment and the meter.
6
RELAY4 RELAY3
5 4 3 2 1 6
RELAY2 RELAY1
5 4 3 2 1 3
MA OUT
2 1
NO NC COM NO NC COM NO NC COM NO NC COM II+ R
RTD
TC
EXC T+ COM
1 2 3
RTD TC 100 10
1 2 3 4 5 6 7 8
+ -
1 2
DW2111
SIGNAL
TYPE RANGE
M-LINK POWER
Figure 4. Connector Labeling for Fully Loaded LTI
Power Connections
Power connections are made to a two-terminal connector labeled
POWER on Figure 4. The meter will operate regardless of DC polarity connection. The + and - symbols are only a suggested wiring convention.
POWER
+ -
AC or DC
POWER
Required External Fuse:
5 A max, 250 V Slow Blow
Figure 5. Power Connections
19
Temperature Panel Meter Instruction Manual
Signal Connections
Signal connections are made to a three-terminal connector labeled
SIGNAL on Figure 4.
Thermocouple and RTD Connections
The following figures show examples for thermocouple and RTD connections.
The TYPE selector switch must be set to the proper position for the meter to accept the selected RTD or TC input.
The RANGE selector switch is used to select 100-ohm platinum or
10-ohm copper RTD. The 1000-ohm platinum RTD input uses the same setting as the 100-ohm RTD.
The input type is selected using the Setup menu.
The selected thermocouple input must correspond to the thermocouple sensor and wire type used.
SIGNAL
EXC T+ COM
1 2 3 4 5 6 7 8
1 2 3
RTD TC 100 10
TYPE RANGE
M-LINK
+
-
TC
Figure 6. Thermocouple Input Connections
20
Temperature Panel Meter
SIGNAL
EXC
1
T+
2
COM
3
RTD
TC
Instruction Manual
100
10
1 2 3 4 5 6 7 8
TYPE RANGE
M-LINK
RTD
Sensor
Figure 7. Three-Wire RTD Input Connections
The meter accepts two, three, or four-wire RTDs. The three-wire RTD connection has built-in lead wire compensation.
SIGNAL
EXC T+ COM
1 2 3 4 5 6 7 8
1 2 3
RTD TC 100 10
TYPE RANGE
M-LINK
RTD
Sensor
Figure 8. Two-Wire RTD Input Connections
Lead wire compensation for two-wire RTDs can be applied using the
Adjust menu. See the Advanced Features Menu on page 61.
21
Temperature Panel Meter
SIGNAL
EXC
1
T+
2
COM
3
RTD
TC
Instruction Manual
100
10
1 2 3 4 5 6 7 8
TYPE RANGE
M-LINK
RTD
Sensor
NC
Figure 9. Four-Wire RTD Input Connections
The four-wire RTD connection is similar to the three-wire. One of the leads of a four-wire RTD is not connected, and may be clipped off.
The three-wire connection provides sufficient lead wire compensation to obtain accurate readings even with long leads.
Connections for Averaging RTD Sensors
To obtain the average temperature from 2 to 10 RTD sensors, connect all the sensors in parallel and select the number of sensors in the RTD
Total ( rtdtot ) menu. See the Advanced Features Menu on page 61.
SIGNAL
EXC T+ COM
1 2 3 4 5 6 7 8
1 2 3
RTD TC 100 10
TYPE RANGE M-LINK
RTD1 RTD2 RTD3
Figure 10. Average Temperature RTD Input Connections
22
Temperature Panel Meter Instruction Manual
Modbus
®
RTU Serial Communications
Serial communications connection is made to an RJ45 connector labeled M-LINK on Figure 4. Use the PMA-01 for RS-232 interfacing or the PMA-03 for RS-422/485 interfacing. The same port is used for interfacing with all expansion modules (i.e. external relays, digital I/O).
Use the PMA-02 meter copy cable for meter-to-meter interfacing for cloning purposes (i.e. copying settings from one meter to other meters).
Relay Connections
Relay connections are made to two six-terminal connectors labeled
RELAY1 – RELAY4 on Figure 4. Each relay’s C terminal is common only to the normally open (NO) and normally closed (NC) contacts of the corresponding relay. The relays’ C terminals should not be confused with the COM (common) terminal of the INPUT SIGNAL connector.
6
RELAY4 RELAY3
5 4 3 2 1 6
RELAY2 RELAY1
5 4 3 2 1
NO NC C NO NC C NO NC C NO NC C
Figure 11. Relay Connections
23
Temperature Panel Meter Instruction Manual
Switching Inductive Loads
The use of suppressors (snubbers) PMA-09 is strongly recommended when switching inductive loads to prevent disrupting the microprocessor’s operation.
The suppressors also prolong the life of the relay contacts. Suppression can be obtained with resistor-capacitor (RC) networks assembled by the user or purchased as complete assemblies. Refer to the following circuits for RC network assembly and installation.
C
C
R
R
Figure 12. AC and DC Loads Protection
Choose R and C as follows:
R: 0.5 to 1 Ω for each volt across the contacts.
C: 0.5 to 1 µF for each amp through closed contacts.
Notes:
1. Use capacitors rated for 250 VAC.
2. RC networks may affect load release time of solenoid loads. Check to confirm proper operation.
3. Install the RC network at the meter's relay screw terminals. An RC network may also be installed across the load. Experiment for best results.
Use a diode with a reverse breakdown voltage two to three times the circuit voltage and forward current at least as large as the load current.
Figure 13. Low Voltage DC Loads Protection
RC Networks Available from Dwyer Instruments, Inc.
RC networks are available from Dwyer Instruments, Inc. and should be applied to each relay contact switching an inductive load. Part number: PMA-09.
Note:
Relays are de-rated to 1/14th HP (50 watts) with an inductive load.
24
Temperature Panel Meter Instruction Manual
4-20 mA Output Connections
Connections for the 4-20 mA transmitter output are made to the connector terminals labeled MA OUT. The 4-20 mA output may be powered internally or from an external power supply.
24 V 24 V
3
RELAY1
2 1
MA OUT
II+ R
3 2 1 3
RELAY1
2 1
MA OUT
II+ R
3 2 1
+
-
4-20 mA Input
Remote Display,
Chart Recorder, Etc.
+
-
4-20 mA
Input Meter
-
+
12-35 VDC
Power
Supply
Figure 14. 4-20 mA Output Connections
Analog Output Transmitter Power Supply
The internal 24 VDC power supply powering the analog output may be used to power other devices, if the analog output is not used. The I+ terminal is the +24 V and the R terminal is the return. This power supply is capable of sourcing up to 40 mA.
25
Temperature Panel Meter Instruction Manual
External Relays & Digital I/O Connections
The relay and the digital I/O expansion modules PMA-11 & PMA-12 are connected to the meter using a CAT5 cable provided with each module.
The two RJ45 connectors on the expansion modules are identical and interchangeable; they are used to connect additional modules to the system.
Note: The jumper located between the RJ45 connectors of the PMA-12 must be removed on the second digital I/O module in order for the system to recognize it as module #2.
Warning!
Do not connect or disconnect the expansion modules with the power on!
More detailed instructions are provided with each optional expansion module.
Figure 15. Expansion Modules & DIN Rail Mounting Kit
1
RLY5
2 3
RLY6
4 5
RLY7
6 7
RLY8
8
NO C NO C NO C NO C
Figure 16. External Relays Module Connections
26
Temperature Panel Meter Instruction Manual
1 2 3 4 5 6 7 8 9 10
+5 I1 I2 I3 I4 O1 O2 O3 O4 G
5 VDC DI 1-4 DO 1-4 GND
Figure 17. Digital I/O Module Connections
Interlock Relay Feature
As the name implies, the interlock relay feature reassigns one, or more, alarm/control relays for use as interlock relay(s). Interlock contact(s) are wired to digital input(s) and trigger the interlock relay. This feature is enabled by configuring the relay, and relative digital input(s) (see page
57). In one example, dry interlock contacts are connected in series to one digital input which will be used to force on (energize) the assigned interlock power relay when all interlock contacts are closed (safe). The interlock relay front panel LED flashes when locked out. The interlock relay would be wired in-series with the load (N/O contact). See below.
Figure 18. Interlock Connections
27
Temperature Panel Meter Instruction Manual
SETUP AND PROGRAMMING
The meter is factory calibrated prior to shipment to read temperature in degrees
Fahrenheit. The calibration equipment is certified to NIST standards.
Overview
There are two switches, located at the back of the meter, to set the input selection for TC or RTD and for 100-ohm platinum or 10-ohm copper.
The 1000-ohm RTD input uses the same setting as the 100-ohm.
Setup and programming is done through the front panel buttons.
After power and input signal connections have been completed and verified, apply power to the meter.
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Temperature Panel Meter Instruction Manual
Front Panel Buttons and Status LED Indicators
Button
Symbol
Menu
1-8 Alarm 1-8 indicator.
Right arrow/F1
1-8-M
Flashing: Relay in manual control mode.
Up arrow/F2
Enter/F3
Note:
Alarms 5-8 are enabled when relay expansion module is
installed.
M
Manual control relays
&/or analog output.
1-4
Flashing: Relay interlock switch open.
Note:
LEDs for relays in manual mode flash with the “M” LED every 10 seconds.
Press the Menu button to enter or exit the Programming Mode at any time.
Press the Right arrow button to move to the next digit during digit or decimal point programming.
Press or hold the Up arrow button to scroll through the menus, decimal point or to increment the value of a digit.
Press the Enter button to access a menu or to accept a setting.
Press and hold the Menu button for three seconds to access the advanced features of the meter.
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Temperature Panel Meter Instruction Manual
Display Functions & Messages
The meter displays various functions and messages during setup, programming, and operation. The following table shows the main menu functions and messages in the order they appear in the menu. reset
Rst Hi
Rst Lo
Rst HL
Contrl
Auto mAn setup input tc
Rtd
A385
A392
F or C
Dec pt dsplay big
Reset
Reset high
Reset low
Reset high & low
Control
Automatic
Press Enter to access the
Reset
menu.
Press Enter to reset max display.
Press Enter to reset min display.
Press Enter to reset max & min displays.
Manual
Setup
Input
TC
RTD
A385
A392
F or C
Decimal point
Display
Big display
Enter
Control
menu.
Press Enter to set meter for automatic operation.
Press Enter to manually control relays or analog output operation.
Enter
Setup
menu.
Enter
Input
selection menu.
Set meter for thermocouple input
J, K, T, E, R, S, B, N, C.
Set meter for RTD input
100Pt, 1000Pt, 10Cu, 120Ni.
Set meter for 0.00385 curve.
Set meter for 0.00392 curve.
Press Enter to select degrees F or C.
Set decimal point: dddd, dddd.d, dddd
°
F, dddd.dF.
Enter the
Display
menu.
Press Enter to assign the Main display parameter (default: PV - temperature).
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Temperature Panel Meter Instruction Manual
Little d-Inty
RELaY
RLY 1
Act 1
Auto
Little display
Display intensity
Relay
Relay 1
Action 1
Automatic
Press Enter to assign the small display parameter (default: engineering units).
Set display intensity level from 1 to 8.
Enter the
Relay
menu.
Relay 1 setup.
Set relay 1 action.
Set relay for automatic reset.
A-nman
Auto-manual
Set relay for automatic & manual reset any time.
LatCH
Latching
Set relay for latching operation.
Lt-CLr
Latchingcleared
Altern
Alternate
Set relay for latching operation with manual reset only after alarm condition has cleared.
Set relay for alternation control.
Sanmpl
Sampling
OFF
Off
Set 1
RSt 1
RLY 2
Set 1
Reset 1
Relay 2
FaiLSF
Fail-safe
FLS 1 on
FLS 2
DeLAY
Fail-safe 1
On
Fail-safe 2
Delay
Set relay for sampling operation.
Disable relay and front panel status LED
(select off to enable interlock feature).
Program set point 1.
Program reset point 1.
Relays 2-8 setup
Note: Relays 5-8 are shown only if expansion relay module is installed.
Enter
Fail-safe
menu.
Set relay 1 fail-safe operation.
Enable fail-safe operation.
Set relays 2-8 fail-safe operation.
Enter relay
Time Delay
menu.
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Temperature Panel Meter Instruction Manual
Aout
Dis 1
Out 1
Dis 2
Out 2 pass
Pass 1
Pass 2
Pass 3 unloc locd
99999
-9999
Open
DLY 1
On 1
OFF 1
DLY 2 break
Delay 1
On 1
Off 1
Delay 2
Break
ignore
Ignore
On
Off
On
Off
Analog output
Display 1
Output 1
Display 2
Output 2
Password
Password 1
Password 2
Password 3
Unlocked
Locked
Flashing display
Open
Enter relay 1 time delay setup.
Set relay 1 On time delay.
Set relay 1 Off time delay.
Enter relays 2-8 time delay setup.
Set relay condition if input break detected.
Ignore input break condition
(processed as an upscale condition).
Relay goes to alarm condition when input break is detected.
Relay goes to non-alarm condition when input break is detected.
Enter the
Analog output
scaling menu.
Program display 1 value.
Program output 1 value (e.g. 4.000 mA).
Program display 2 value.
Program output 2 value (e.g. 20.000 mA).
Enter the
Password
menu.
Set or enter Password 1 .
Set or enter Password 2.
Set or enter Password 3.
Program password to lock meter.
Enter password to unlock meter.
Overrange condition.
Underrange condition.
Open sensor indication.
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Temperature Panel Meter Instruction Manual
Main Menu
The main menu consists of the most commonly used functions: Reset,
Control, Setup
, and Password.
Press Menu button to enter Programming Mode then press the Up
Arrow button to scroll main menu.
Press Menu, at any time, to exit and return to Run Mode. Changes made to settings prior to pressing Enter are not saved.
Changes to the settings are saved to memory only after pressing
Enter.
The display moves to the next menu every time a setting is accepted by pressing Enter.
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Temperature Panel Meter Instruction Manual
Setting Numeric Values
The numeric values are set using the Right and Up Arrow buttons.
Press Right Arrow to select next digit and Up Arrow to increment digit value.
The digit being changed is displayed brighter than the rest.
Press the Enter button, at any time, to accept a setting or Menu button to exit without saving changes.
0 0 100.0
set 1
00 1 00.0
set 1
00 2 00.0
Set 1
Reset 1
Select Next Digit
Increment Digit
Value
Accept Setting
Reset Menu (reset)
The Reset menu is used to reset the maximum or minimum reading
(peak or valley) reached by the process; both may be reset at the same time by selecting “reset high & low” (rst HL).
Control Menu (Contrl)
The Control menu is used to control the 4-20 mA analog output and the relays manually, ignoring the input. Each relay and analog output can be programmed independently for manual control. Selecting automatic control sets all relays and analog output for automatic operation.
C on t r l
a ut o c o n t r l
Once Manual mode is initiated on any relay or analog output, an LED labeled “M” is turned on. Every few seconds, all LEDs representing outputs that are in Manual mode, as well as the “M” LED flash. This process will continue as long as any output is in manual mode.
m a n c o n t r l
A ou t
m a n
r l y 1
m a n
r l y 8
m a n
1 6 . 0 0 0
A o u t
o F F
r l y 1
o n
r l y 8
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Temperature Panel Meter Instruction Manual
Setting Up the Meter (setup)
It is very important to read the following information, before proceeding to program the meter:
The meter is factory calibrated prior to shipment to read temperature in degrees Fahrenheit. The calibration equipment is certified to NIST standards.
There is no need to calibrate the meter, simply select the input type, °F or °C, and decimal point.
The Setup menu is used to select:
1. Input type the meter will accept.
2. Degrees F or C.
3. Decimal point position and F or C indication.
4. Display parameter and intensity.
6. 4-20 mA analog output scaling.
Press the Enter button to access any menu or press Up Arrow button to scroll through choices. Press the Menu button to exit at any time.
35
Temperature Panel Meter
setup
Instruction Manual
input setup tc
Input
F or C setup
F
F or C rtd
Input
C
F or C
Press Enter to Accept
dec pt setup dddd dec pt
dddd.d
dec pt
dddd o
F dec pt
dddd.dF
dec pt
Dsplay setup
big dsplay
relay setup
rly 1-8 relay
Little dsplay
Failsf relay
d-Inty dsplay
delay relay
Aout setup
dis 1
Aout
0 04.000
dis 1
Out 1
Aout
36
Temperature Panel Meter Instruction Manual
Setting the Input Signal (input)
Enter the Input menu to set up the meter to accept thermocouple (tc) or
RTD (rtd) inputs. The Type selector switch, located at the rear of the meter, must be set accordingly.
The thermocouple input is capable of accepting various types of thermocouples.
The RTD input is capable of accepting various types of RTD sensors.
After selecting 100 Pt or 1000Pt, it is necessary to select either A385
(0.00385) or A392 (0.00392) coefficient.
Selecting the Temperature Scale (F or C)
The meter can display the temperature in degrees Fahrenheit or Celsius.
Setting the Decimal Point (dEc pt)
The temperature may be displayed with one decimal or with no decimal point. The temperature scale can also be displayed with the reading.
The degree symbol is available only with no decimal point selected.
Pressing the Up Arrow scrolls the decimal point and temperature format selections.
Setting the Display Parameter & Intensity (dsplay)
The main display (Big) can be programmed to display:
2. Relay set points
3. Max & min values
5. Display reading and units
The small display (Little) can be programmed to display:
2. Relay set points
3. Max & min values
4. Engineering units or custom legends
6. Off (no display)
7. Display reading and units
Display Intensity
: The meter has eight display intensity levels to give the best performance under various lighting conditions. Select intensity
8 for outdoor applications.
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Temperature Panel Meter Instruction Manual
Display Setup Menu
Press the Up Arrow to change selection.
Press Menu to exit programming.
After setting up the input and display, press the Menu button to exit programming and skip the rest of the setup menu. Press the Menu button again and the Up Arrow to reach the Setup menu again and complete the setup of the meter.
38
Temperature Panel Meter Instruction Manual
Character Set for Engineering Units Display (d unit)
The small display can be programmed to show engineering units or custom legends using the following 7-segment character set: d e f g
9
H h
I i j
Display Character Display Character
0
0 k
K
1
1 l L
2
3
4
5
6
2
3
4
5
6 m n
O o p m n
O o
P
7 q 7
8
9
A b
C c
8
9
A b
C c q r s t u v u w r
S t u
V w d X
E
F
G g
H h
I i
J x y z
-
/
[
]
=
!
Y
Z
-
/
]
[
=
Space
Degree
*Degree symbol (special non-ASCII character used).
The letters “m” and “w” use two 7-segment LEDs each; when selected the characters to the right are shifted one position.
See the flow chart 38 to access the display units menu.
Press and hold up arrow to auto-scroll the characters in the display.
39
Temperature Panel Meter Instruction Manual
Setting the Relay Operation (relay)
This menu is used to set up the operation of the relays.
CAUTION! During setup, the relays do not follow the input and they will remain in the state found prior to entering the Relay menu.
a. Automatic reset only (non-latching). b. Automatic + manual reset at any time (non-latching). c. Latching (manual reset only). d. Latching with Clear (manual reset only after alarm condition has cleared). e. Relay alternation control (automatic reset only). f. Sampling (the relay is activated for a user-specified time). g. Off (relay disabled and Interlock feature enabled). a. On delay (0-999.9 seconds). b. Off delay (0-999.9 seconds).
6. Relay action for loss (break) of input (ignore, on, off).
40
Temperature Panel Meter
relay setup
rly 1 relay
Instruction Manual
Failsf relay
delay relay
break relay
Act 1 r l y 1
set 1 rly 1
rst 1 rly 1
Fls 1
on
off
F a i l s f
F l s 1
Fls 1
dly 1 delay
on dly 1
off dly 1
Note: The setup of relays 2-8 follows the same
pattern shown here for relay 1.
break1 b r e a k
ignore b r e a k 1
On b r e a k 1
Off b r e a k 1
41
Temperature Panel Meter Instruction Manual
Setting the Relay Action
Operation of the relays is programmed in the Action menu. The relays may be set up for any of the following modes of operation:
1. Automatic reset (non-latching).
2. Automatic + manual reset at any time (non-latching).
3. Latching (manual reset only, at any time).
4. Latching with Clear (manual reset only after alarm condition has cleared).
5. Relay alternation control (automatic reset only).
6. Sampling (the relay is activated for a user-specified time).
7. Off (relay disabled and Interlock feature enabled).
The following graphic shows relay 1 action setup; relay 2-8 are set up in a similar fashion.
From
Relay 1
Menu
Act 1 r l y 1
Auto
A c t 1
A-mAn
Act 1
Latch
Act 1
Lt-Clr
Act 1
Altern
A c t 1
Sampl
Act 1
OFF
Act 1
42
Temperature Panel Meter Instruction Manual
Programming Set and Reset Points
High alarm indication: program set point above reset point.
Low alarm indication: program set point below reset point.
The deadband is determined by the difference between set and reset points. Minimum deadband is one display count. If the set and reset points are programmed with the same value, the relay will reset one count below the set point.
Note: Changes are not saved until the reset point has been accepted.
set 1 rly 1
Program
Set Point
rst 1 rly 1
Program
Reset Point
Setting Fail-Safe Operation
In fail-safe mode of operation, the relay coil is energized when the process variable is within safe limits and the relay coil is de-energized when the alarm condition exists. The fail-safe operation is set independently for each relay. Select on to enable or select off to disable failsafe operation.
Programming Time Delay
The On and Off time delays may be programmed for each relay between 0 and 999.9 seconds. The relays will transfer only after the condition has been maintained for the corresponding time delay.
The On time delay is associated with the set point.
The Off time delay is associated with the reset point.
Relay Action for Loss of Input (Input Break)
Each relay may be programmed to go to one of the following conditions when the meter detects the loss of the input signal:
1. Turn (Go to alarm condition).
2. Turn (Go to non-alarm condition).
3. Ignore (Processed as an upscale condition).
43
Temperature Panel Meter Instruction Manual
Panel Meter Pro Software
The meter can also be programmed using the PC-based Panel Meter
Pro software available for free download at www. dwyer-inst.com.
Data logging for one meter at the time is available with Panel Meter Pro software. More advanced data acquisition may be accomplished by using any Modbus RTU compliant software.
In order to program the meter using a computer, the meter must be connected using a USB, RS-232, or RS-485 serial adapter, see OR-
DERING INFORMATION on page 7 for details.
44
Temperature Panel Meter Instruction Manual
Relay and Alarm Operation Diagrams
The following graphs illustrate the operation of the relays, status LEDs, and ACK button.
High Alarm Operation (Set > Reset)
For Manual reset mode, ACK can be pressed anytime to turn "off" relay.
To detect a new alarm condition, the signal must go below the set point, and then go above it.
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Temperature Panel Meter Instruction Manual
Low Alarm Operation (Set < Reset)
Input
Reset
Set
Relay energized
LED on de-energized off
Automatic (non-latching)
Relay
LED
ACK pressed
Automatic or Manual (non-latching)
Relay
LED
ACK pressed
Manual (latching)
Relay
LED
ACK pressed
Manual only after passing above Reset (latching with clear)
For Manual reset mode, ACK can be pressed anytime to turn "off" relay.
For relay to turn back "on", signal must go above set point, and then go below it.
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Temperature Panel Meter Instruction Manual
High Alarm with Fail-Safe Operation (Set > Reset)
Input
Set
Reset
Relay
LED energized off de-energized on
Automatic (non-latching)
Relay
LED
ACK pressed
Automatic or Manual (non-latching)
Relay
LED
ACK pressed
Manual (latching)
Relay
LED
ACK pressed
Manual only after passing below Reset (latching with clear)
Note: Relay coil is energized in non-alarm condition.
In case of power failure, relay will go to alarm state.
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Temperature Panel Meter Instruction Manual
Low Alarm with Fail-Safe Operation (Set < Reset)
Input
Reset
Set
Relay de-energized
LED on energized off
Automatic (non-latching)
Relay
LED
ACK pressed
Automatic or Manual (non-latching)
Relay
LED
ACK pressed
Manual (latching)
Relay
LED
ACK pressed
Manual only after passing above Reset (latching with clear)
Note: Relay coil is energized in non-alarm condition.
In case of power failure, relay will go to alarm state.
48
Temperature Panel Meter Instruction Manual
49
Temperature Panel Meter
Relay Sampling Operation
Instruction Manual
Input
Set
Reset
Sample
Time
Sample
Time
Sample
Time
Relay
LED
When the signal crosses the set point, the relay trips and the sample time starts. After the sample time has elapsed, the relay resets. The cycle repeats every time the set point is crossed, going up for high alarms and going down for low alarms.
The sample time can be programmed between 0.1 and 5999.9 seconds.
50
Temperature Panel Meter Instruction Manual
Signal Loss or Input Break Relay Operation
The following graph shows the input break relay operation for a high alarm relay.
Input
INPUT
BREAK
Set
INPUT
BREAK
Reset
Relay de-energized
LED off energized on
Input Break = Ignore
Relay
LED
Input Break = Off
Relay
LED
Input Break = On
When the meter detects a break in the input, the relay will go to one of the following selected actions:
1. Turn (Go to alarm condition).
2. Turn (Go to non-alarm condition).
3. Ignore (Processed as an upscale condition).
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Temperature Panel Meter Instruction Manual
Time Delay Operation
The following graphs show the operation of the time delay function.
Input
Set
Reset
<Tdelay <Tdelay >=Tdelay
Relay
LED
*
On Time Delay
Set
Reset
Input
<Tdelay <Tdelay >=Tdelay
Relay
LED
*
Off Time Delay
When the signal crosses the set point, the On time delay timer starts and the relay trips when the time delay has elapsed. If the signal drops below the set point (high alarm) before the time delay has elapsed, the
On
time delay timer resets and the relay does not change state. The same principle applies to the Off time delay.
* Note: If “Automatic or Manual (
A-nmAn
)
” reset mode is selected, the
LED follows the reset point and not the relay state when the relay is acknowledged.
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Temperature Panel Meter Instruction Manual
Relay Operation Details
Overview
The relay capabilities of the meter expand its usefulness beyond simple indication to provide users with alarm and control functions. These capabilities include front panel alarm status LEDs as well as either 2 or 4 optional internal relays and/or 4 external relays expansion module. Typical applications include high or low temperature alarms, control applications such as simple on/off temperature control. There are four basic ways the relays can be used:
1. High or Low Alarms with Latching or Non-Latching Relays.
2. Simple On/Off Control with 100% Adjustable Deadband.
3. Sampling (Based on Time).
4. Relay Alternation Control.
Relays Auto Initialization
When power is applied to the meter, the front panel LEDs and alarm relays will reflect the state of the input to the meter. The following table indicates how the alarm LEDs and relays will react on power-up based on the set and reset points.
Alarm
#
HI or LO
Alarm
Set
Point
Reset
Point
Power-Up
Reading
Relay &
LED
2 LO 700 900 499 On
3 LO 250 400 499 Off
4 HI 450 200 499 On
Fail-Safe Operation
The following table indicates how the relays behave based on the failsafe selection for each relay.
Fail-Safe
Selection
Non-Alarm State Alarm State
NO NC NO NC
Power Failure
non-alarm state
Relays alarm state
Note: NO = Normally Open, NC = Normally Closed. This refers to the condition of the relay contacts when the power to the meter is off.
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Temperature Panel Meter Instruction Manual
Front Panel LEDs
The LEDs on the front panel provide status indication for the following.
LED Status
1 Alarm 1
LED Status
5 Alarm 5
2
3
4
Alarm 2
Alarm 3
Alarm 4
6
7
8
Alarm 6
Alarm 7
Alarm 8
The meter is supplied with four alarm points that include front panel
LEDs to indicate alarm conditions. This standard feature is particularly useful for alarm applications that require visual-only indication. The
LEDs are controlled by the set and reset points programmed by the user. When the display reaches a set point for a high or low alarm, the corresponding alarm LED will turn on. When the display returns to the reset point the LED will go off. The front panel LEDs respond differently for latching and non-latching relays.
For non-latching relays, the LED is always off during normal condition and always on during alarm condition, regardless of the state of the relay (e.g. Relay acknowledged after alarm condition).
For latching relays, the alarm LEDs reflect the status of the relays, regardless of the alarm condition. The following tables illustrate how the alarm LEDs function in relation to the relays and the acknowledge button (Default: F3 key assigned to ACK).
Latching and Non-Latching Relay Operation
The relays can be set up for latching (manual reset) or non-latching
(automatic reset) operation.
Relay terminology for following tables
Terminology Relay Condition
Ack Acknowledged
The On and Off terminology does not refer to the status of the relay’s coil, which depends on the fail-safe mode selected.
In latching relay mode, latched relays will reset (unlatch) when power is cycled.
Warning!
54
Temperature Panel Meter Instruction Manual
Non-Latching Relay (Auto)
Automatic reset only
Condition LED Relay
Ack (No effect) On On
In this application, the meter is set up for automatic reset (non-latching relay). Acknowledging the alarm while it is still present has no effect on either the LED or the relay. When the alarm finally goes away, the relay automatically resets and the LED also goes off.
Non-Latching Relay (A-nman)
Automatic + manual reset at any time
Condition LED Relay
Next Alarm
Ack
On
On
On
Off
In this application, the meter is set up for automatic and manual reset at any time (non-latching relay). The LED and the relay automatically reset when the meter returns to the normal condition.
The next time an alarm occurs, the operator acknowledges the alarm manually while the alarm condition still exists. This causes the relay to reset, but the LED stays on until the meter returns to the normal condition.
Latching Relay (LatcH)
Manual reset any time
Condition LED Relay
In this application, the meter is set up for manual reset at any time. Acknowledging the alarm even if the alarm condition is still present resets the relay and turns off the LED.
55
Temperature Panel Meter
Latching Relay (Lt-Clr)
Instruction Manual
Manual reset only after alarm condition has cleared
Condition LED Relay
Ack (No effect) On On
In this application, the meter is set up for manual reset only after the signal passes the reset point (alarm condition has cleared). Acknowledging the alarm while it is still present has no effect on either the LED or the relay. When the alarm is acknowledged after it returns to the normal state, the LED and the relay go off. Notice that the LED remains on, even after the meter returns to the normal condition. This is because, for latching relays, the alarm LED reflects the status of the relay, regardless of the alarm condition.
Acknowledging Relays
There are two ways to acknowledge relays programmed for manual reset: via the programmable front panel function keys F1-F3 (Default:
F3 assigned to ACK) and remotely via a normally open pushbutton connected across one of the digital inputs and the +5 V terminals on the digital I/O modules (Default: DI-4 assigned to ACK). When the ACK button or the assigned digital input is closed, all relays programmed for manual reset are acknowledged.
1
PMA-12 Digital I/O Module
2 3 4 5 6 7 8 9 10
+5 I1 I2 I3 I4 O1 O2 O3 O4 G
DI 1-4 DO 1-4
GND
ACK
Figure 19. Acknowledge Relays w/Function Key or Digital Input
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Temperature Panel Meter Instruction Manual
Setting Up the Interlock Relay (Force On) Feature
Relays 1-4 can be set up as interlock relays. To set up the relays for the interlock feature:
1. Access the Setup – Relay – Action menu and set the action to off.
setup
relay
setup
rly 1
relay
Act 1
r l y 1
Off
A c t 1
2. In the Advanced features – User menu program any of the digital inputs to Force On any of the internal relays (1-4).
user F1 user
dI 1 user
F On 1 dI 1
3. Connect a switch or dry contact between the +5V terminal and the corresponding digital input (dI-1 to dI-4) terminal.
SW2
SW1
1 2 3 4 5 6 7 8 9 10
+5 I1 I2 I3 I4 O1 O2 O3 O4 G
5 VDC
DI 1-4 DO 1-4
GND
Interlock Relay Operation
Relays 1 & 2 are energized when SW1 & SW2 switches are closed and the front panel LEDs are off. If the contact to the digital input is opened, the corresponding front panel LED flashes indicating this condition. The processes being controlled by the interlock relay stop and will re-start only after the interlock relay is activated by the digital inputs.
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Temperature Panel Meter Instruction Manual
Scaling the 4-20 mA Analog Output (Aout)
The 4-20 mA analog output can be scaled to provide a 4-20 mA signal for any display range selected.
No equipment is needed to scale the analog output; simply program the display values to the corresponding mA output signal.
The Analog Output menu is used to program the 4-20 mA output based on display values.
Aout
setup
dis 1
Aout
0
0000.0
d i s 1
*
Out 1
Aout
0
4.000
O u t 1
dis 2
Aout
0
2000.0
d i s 2
*
Out 2
Aout
2
0.000
O u t 2
*
Note: During the analog output scaling, the display value is always indicated with a decimal point regardless of the decimal point selection for the temperature display.
For instructions on how to program numeric values see Setting Numeric
Values
, page 34.
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Temperature Panel Meter Instruction Manual
Setting Up the Password (pass)
The Password menu is used for programming three levels of security to prevent unauthorized changes to the programmed parameter settings.
Pass 1: Allows use of function keys and digital inputs.
Pass 2: Allows use of function keys, digital inputs and editing set/reset points.
Pass 3: Restricts all programming, function keys, and digital inputs.
Protecting or Locking the Meter
Enter the Password menu and program a six-digit password.
For instructions on how to program numeric values see Setting Numeric
Values
, page 34.
Pass 1
Pass
Pass 2
Pass
0
00000
Pass 1
1
00000
Pass 1
Locd
Pass 1
Run Mode
Pass 3
Pass
Record the password for future reference. If appropriate, it may be recorded in the space provided.
Model:
Serial Number:
Password 1:
Password 2:
Password 3:
__ __ __ __ __ __
__ __ __ __ __ __
__ __ __ __ __ __
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Temperature Panel Meter Instruction Manual
Making Changes to a Password Protected Meter
If the meter is password protected, the meter will display the message
Locd
(Locked) when the Menu button is pressed. Press the Enter button while the message is being displayed and enter the correct password to gain access to the menu.
Note: After exiting the programming mode, the meter returns to its password protected condition.
Disabling Password Protection
To disable the password protection, access the Password menu and enter the correct password twice, as shown below. The meter is now unprotected until a new password is entered.
Run Mode
75.6F
mA
Locd 0
00000
Locd
1
00000
Locd
unLoc
Locd
reset Pass
Enter
Password
unLoc
Pass 1
If the correct six-digit password is entered, the meter displays the message unLoc (unlocked) and the protection is disabled until a new password is programmed.
If the password entered is incorrect, the meter displays the message
Locd
(Locked) for about two seconds, and then it returns to Run Mode.
To try again, press Enter while the Locked message is displayed.
Did you forget the password?
The password may be disabled by entering a master password once. If you are authorized to make changes, enter the master password 508655 to unlock the meter.
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Temperature Panel Meter Instruction Manual
Advanced Features Menu
To simplify the setup process, functions not needed for most applications are located in the Advanced Features menu.
Press and hold the Menu button for three seconds to access the advanced features of the meter.
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Temperature Panel Meter Instruction Manual
Advanced Features Menu & Display Messages
The following table shows the functions and messages of the Advanced
Features
menu in the order they appear in the menu.
Display Parameter Action/Setting
Adjust
Adjust
Set adjust value to offset temperature reading.
T cal
Enter temperature calibration menu.
T lo
T Hi rtdtot filtEr bypASs seriAl
SlaveId baud
T Cal
T Low
T High
RTD Total
Filter
Bypass
Serial
Slave ID
Baud rate
Apply the low temperature input (e.g. 32
°
F).
Apply the high temperature input
(e.g. 1000
°
F).
Set the number of RTDs connected in parallel to obtain average temperature.
Set noise filter value.
Set filter bypass value.
Set serial communication parameters.
Set slave ID or meter address.
Select baud rate.
Tr dLY
Transmit delay
Set transmit delay for serial communication.
Parity
Parity
t-byt
SelEct
AoutPr
Time byte
Select
Analog output programming
Select parity:
Even, Odd, or None with 1 or 2 stop bits.
Set byte-to-byte timeout.
Enter the Select menu.
Program analog output parameters.
Source
Source
O-rang
Overrange
u-rang mAx min
Calib
4 mA
Underrange
Maximum
Minimum
Calibrate
4 mA output
Select source for the 4-20 mA output.
Program mA output for display overrange.
Program mA output for display underrange.
Program maximum mA output allowed.
Program minimum mA output allowed.
Calibrate 4-20 mA output (internal reference source used for scaling the output).
Enter mA output value read by milliamp meter with at least 0.001 mA resolution.
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Temperature Panel Meter Instruction Manual
Display Parameter Action/Setting
20 mA
20 mA output
Enter mA output value read by milliamp meter with at least 0.001 mA resolution. user
F1
F2
F3 dI I dO 1
ICal mref
0nmv
0 mV
100nmv
100 mV
Copy send done
Diag
LED t
Info
User I/O
F1 function key
F2 function key
F3 function key
Digital input 1
Digital output 1
Internal temp calibration
Measured temp reference
Copy
Send
Done
Diagnostics
LED test
Information
Assign function keys and digital I/O.
Assign F1 function key.
Assign F2 function key.
Assign F3 function key.
Assign digital input 1- 8, if expansion modules are connected.
Assign digital output 1- 8, if expansion modules are connected.
Enter internal temperature calibration (used for factory calibration only).
Enter the measured reference temperature in degrees Celsius (e.g. 25.0).
Apply 0.000 mV input Internal Calibration.
Apply 100.000 mV input.
Enter copy function.
Send meter settings to another meter.
Copy function completed.
Display parameter settings.
Test all LEDs.
Display software and S/N information.
Offset Adjust (Adjust)
This parameter allows the user to select an offset adjustment to the temperature being displayed. Offset adjustment values can be either positive or negative and can be any number within
50.0. The offset adjustment value is programmed through the Adjust menu.
The offset adjustment feature can be useful to compensate for errors due to thermocouple junctions or excessive lead wire resistance in RTDs.
Note: The offset adjustment value is not reset to zero when the type of temperature sensor is changed (i.e. TC type or RTD curve). Celsius/Fahrenheit conversion must be made manually by the user.
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Temperature Panel Meter Instruction Manual
Recalibration of the Meter (t CAL)
The Calibration (t CAL) menu is used to recalibrate the thermocouple and RTD inputs.
The meter is factory calibrated prior to shipment to read temperature in degrees Fahrenheit. The calibration equipment is certified to NIST standards.
There is no need to calibrate the meter, simply select the input type, °F or °C, and decimal point.
Check calibration of the meter at least every 12 months.
Allow at least 30 minutes warm-up time before performing recalibration procedure to ensure specified accuracy.
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Temperature Panel Meter Instruction Manual
Recommended Calibration Points
To recalibrate the meter, it is recommended to use the Fahrenheit scale; this will give a greater degree of accuracy to the calibration. The scale can be changed to the Celsius scale after calibration is completed. The meter will display temperature accurately in any scale. The following table shows the recommended low and high calibration points for all types.
Type of input
Type J
Type K
Type T
Type E
Type R
Type S
Type B
Type N
Type C
10
Cu RTD
100
Pt RTD
(0.00385)
100
Pt RTD
(0.00392)
120
Ni RTD
1000
Pt RTD
(0.00385)
1000
Pt RTD
(0.00392)
32
F
9.035
32
F
100
32
F
100
32
F
120
32
F
1000
32
F
1000
Input 1
(Low)
Input 2
(High)
Check
(Middle)
32
F 1184
F 600
F
32
F 1895
F 960
F
32
F 698
F 360
F
32
F 1652
F 800
F
32
F 3110
F 1500
F
32
F 3110
F 1500
F
32
F 3110
F 1500
F
32
F 1472
F 700
F
500
F 3650
F 1800
F
450
F
18.032
1148
F
320.12
1148
F
324.49
410
F
315.31
900
F
2750.4
900
F
2785.1
200
F
12.639
590
F
215.61
590
F
217.89
221
F
205.22
450
F
1876.5
450
F
1893.7
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Temperature Panel Meter Instruction Manual
Recalibration Procedure
1. Connect signal to the meter using the appropriate wire (e.g. type J thermocouple wire to recalibrate type J input), see page 20.
2. Set up the meter to accept the selected input (e.g. type J T/C), see page 37.
3. Set up the meter to display temperature in degrees Fahrenheit.
4. Apply signal corresponding to input 1 (32°F) and program the display to read 32.0.
5. Apply signal corresponding to input 2 (1184°F for type J) and program the display accordingly.
6. After the meter accepts input 2, the display returns to reading mode. This completes the recalibration procedure for the selected input.
Noise Filter (filter)
The noise filter is available for unusually noisy signals that cause an unstable process variable display. The noise filter averages the input signal over a certain period. The filter level determines the length of time over which the signal is averaged. The filter level can be set between 2 and 199. The higher the filter level, the longer the averaging time and so the longer it takes the display to settle to its final value. Setting the filter level to zero disables the filter function.
Noise Filter Bypass (bypass)
The noise filter bypass changes the behavior of the meter so that small variations in the signal are filtered out but large abrupt changes in the input signal are displayed immediately. The bypass value determines the minimum amount of signal change to be displayed immediately. All signal changes smaller than the bypass value are filtered or averaged by the meter. The noise filter bypass may be set between 0.1 and
99.9% of full scale.
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Temperature Panel Meter Instruction Manual
Modbus
®
RTU Serial Communications (serial)
The meter is equipped with serial communications capability as a standard feature using the Modbus
®
RTU Serial Communication Protocol.
To communicate with a computer or other data terminal equipment, an
RS-232 or RS-422/485 adapter option is required; see Ordering Infor-
mation
on page 7 for details.
Do not connect any equipment other than Dwyer
Instruments, Inc.’s expansion modules, cables, or meters to the RJ45 M-LINK connector. Otherwise damage will occur to the equipment and the meter.
Warning!
Note: More detailed instructions are provided with each optional serial communications adapter.
Note: Refer to the Modbus
® inst.com for details.
Register Tables located at www.dwyer-
serial SlavId
Serial
baud
Serial
tr dly
Serial
Parity
Serial
t-byt
Serial
When using more than one meter in a multi-drop mode, each meter must be have its own unique Slave ID or meter address. The ID or address may be programmed between 1 and 247. The transmit delay may be set between 0 and 199 ms. The parity can be set to even, odd, or none with 1 or 2 stop bits.
The LTI can also be connected to another LTI with a special PMA-02 cable, allowing the user to copy all the settings from one meter to another, using the Copy function.
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Temperature Panel Meter Instruction Manual
Select Menu (SElect)
The Select menu is used to program the analog output parameters.
There are no other selections for this model.
select AoutPr
Select
Source
AoutPr
O-rang
AoutPr
Underrange
Break
Max
Min
Calib
AoutPr
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Temperature Panel Meter Instruction Manual
Analog Output Programming (AoutPr)
The Analog Output Programming menu is used to program the behavior of the 4-20 mA output. The following parameters and functions are programmed in this menu:
1. Source: Source for generating the 4-20 mA output (e.g. PV - temperature).
2. Overrange: Analog output value with display in overrange condition.
3. Underrange: Analog output value with display in underrange condition.
4. Break: Analog output value when input break is detected.
5. Max: Maximum analog output value allowed regardless of input.
6. Min: Minimum analog output value allowed regardless of input.
7. Calibrate: Calibrate the internal 4-20 mA source reference used to scale the 4-20 mA output.
Analog Output Source
The source for generating the 4-20 mA output may be assigned to the process variable, maximum or minimum value reached by the process, one of the set points, or the Modbus
®
input.
Source
AoutPr
Pv
Source
max
Source
min
Source
Set Points
1 - 8
mbus
Source
Analog Output Calibration
To perform the analog output calibration it is recommended to use a milliamp meter with a resolution of at least 0.1 µA to measure the output current. The values saved internally during this procedure are used for scaling the 4-20 mA output in the Setup menu.
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Temperature Panel Meter Instruction Manual
Programmable Function Keys User Menu (user)
The User menu allows the user to assign the front panel function keys
F1, F2, F3 and up to eight digital inputs to access most of the menus or to activate functions immediately (e.g. Reset max & min). Up to eight digital outputs can be assigned to a number of actions and functions executed by the meter (e.g. Alarms, relay acknowledgement, etc.).
user F1
user
F2
user
F3
user
dO 8
user
dO 1
user
dI 8
user
dI 1
user
Function Keys & Digital I/O Available Settings
Display Description
AcH
Acknowledge relays
Display Description
Lit Hi
Max on little display
Rst Hi
Rst Lo
Rst HL
Reset max
Reset min
Reset max & min
Lit Lo
Lit HL disabl
Min on little display
Max/min little display
Disable function key relay
Set 1
Rly d
Rly E
O Hold d Hold
Big Hi
Big Lo
Big HL
Relay menu
Set point 1 - 8
Disable all relays
Enable all relays
Relays & output hold
Display hold
Max on big display
Min on big display
Max/min big display menu
Right up
Enter
Alm 1
F On 1
F On 2
F On 3
F On 4
Menu button
Right arrow button/F1
Up arrow button/F2
Enter button/F3
Alarm 1 – 8
Force relay 1 on
Force relay 2 on
Force relay 3 on
Force relay 4 on
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Temperature Panel Meter Instruction Manual
Internal Temperature Calibration (ICAL)
The meter is factory calibrated prior to shipment to read temperature in degrees Fahrenheit. The calibration equipment is certified to NIST standards.
The Internal Calibration (ICAL) is a function used at the factory to calibrate all the thermocouple and RTD ranges. This procedure should only be used by qualified personnel.
To recalibrate the meter for a specific input and range, refer to page 64
Recalibration of the Meter (t CAL).
Notes:
1. If meter is in operation and it is intended to accept only one input type (e.g. 100 Pt), recalibration of other inputs is not necessary.
2. Allow the meter to warm up for at least
30 minutes before performing the calibration procedure.
procedure found on page 64.
The Internal calibration menu is part of the Advanced Features menu and is described in the following pages. This procedure should only be used by qualified personnel.
Note: Most users should not require the use of the Internal Calibration procedure. The T CAL procedure should be used instead of the
ICAL procedure.
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Temperature Panel Meter Instruction Manual
Thermocouple Input Internal Calibration (ICAL)
1. Set the Type selector switch in the TC position and using copper wire connect a precision mV calibrator to the input. the menu select the input: TC – Type J.
3. Press and hold the Menu button for three seconds to access the advanced features of the meter.
4. Press the Up Arrow button to scroll to the Internal calibration menu
(ICAL) and press Enter.
5. The meter displays either current calibration (mref). Press Enter to start the calibration process.
6. Measure the room temperature in degrees Celsius using a reliable reference, enter the room temperature (e.g. 25.0), and press Enter.
7. The meter displays 0mv, apply an input equal to 0.000 mV and press Enter. The display flashes while accepting the 0 mV input; press Enter again when the display stops flashing.
8. The meter displays 100mv, apply an input equal to 100.000 mV and press Enter. The display flashes while accepting the 100 mV input; press Enter again when the display stops flashing.
9. Apply 0 mV, the meter should read room temperature.
10. This completes the calibration of all the thermocouple ranges.
ICAL mref 25.0
mref
0mv
250
The display flashes while sensing the inputs
100mv
2 5 0
The display flashes while sensing the inputs
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Temperature Panel Meter Instruction Manual
RTD Input Internal Calibration (ICAL)
1. Set the Type selector switch in the RTD position and the Range switch in the 10 position. Using 3 wires connect a precision calibrator resistance output to the meter. the menu select the input: RTD – 100 Pt – A385. the menu and scroll to the ICAL menu and press Enter.
4. The meter displays the message (10 lo). Apply 9.035 ohm and press Enter. The display flashes for a moment while the meter is accepting the low input signal for the 10-ohm RTD. After the display stops flashing, press Enter again.
5. The meter displays the message (10 Hi). Apply 18.032 ohm and press Enter. The display flashes for a moment while the meter is accepting the high input signal for the 10-ohm RTD. After the display stops flashing, press Enter again.
6. The meter displays the message (100 lo). Do NOT press Enter.
7. Move the Range selector switch to the 100 position. Apply 100 ohm and press Enter. The display flashes for a moment while the meter is accepting the low input signal for the 100-ohm RTD.
8. The meter displays the message (100 Hi). Apply 320.12 ohm and press Enter. The display flashes for a moment while the meter is accepting the high input signal for the 100-ohm RTD.
9. At the end of the calibration process the meter should read 1148.0F with the 320.12 ohm input applied.
10. This completes the calibration of all the RTD ranges.
ICAL 10 lo
ICAL
10 Hi
ICAL
The display flashes while sensing the inputs
100 Lo
ICAL
73
100 Hi
I C A L
Temperature Panel Meter Instruction Manual
Meter Copy Function (Copy)
The Copy function is used to copy (or clone) all the settings from one meter to other meters requiring exactly the same setup and programming (i.e. type of input, decimal point, filter, bypass, etc.).
Warning!
Only the PMA-02 meter copy cable must be used for meter-to-meter interfacing. The PMA-02 is a special eightconductor flat cable with two wires swapped.
Using standard CAT5 or other cable will cause damage to both meters.
PMA-02 Meter Copy Cable
Figure 20. Meter Copy Connection
Copy Function Requirements
To successfully copy settings from one meter to another, both meters must have:
1. Same software version.
2. Same baud rate setting.
See Determining Software Version, page 78 for instructions.
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Temperature Panel Meter Instruction Manual
Meter Copy or Cloning Instructions
!
Caution!
Do not connect the two meters to the same signal source while cloning. Internal calibration may be affected.
1. Connect two meters using a PMA-02 meter copy cable.
Warning!
Using standard CAT5 or other cable will cause damage to both meters. Use PMA-02 meter copy cable only.
2. Do not connect the two meters to the same signal source.
3. Power up both meters. Leave Clone meter in Run Mode. the Features menu of the Master meter; see Ad-
vanced Features Menu
on page 61.
5. Scroll to the Copy function using the Up Arrow button then press
Enter.
6. The meter displays the message Send. Press Enter, the display flashes while sending data. The message done is displayed when copying is completed.
Copy Send
Copy
Display flashes while sending data
done
Copy
7. The Clone meter displays the message CPY rC while being programmed then the message done when copying is completed. The meter initializes and returns to Run Mode using the same settings as the Master.
8. If meter to be cloned does not respond to the data being sent, refer to Copy Function Requirements above.
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Temperature Panel Meter Instruction Manual
METER OPERATION
The meter is capable of accepting a variety of thermocouples and
RTDs.
The dual-line display can be customized by the user to operate in such a way as to satisfy a specific application. Typically the main display is used for the process variable; while the second display is used engineering units, custom legend, or set point indication.
Additionally the meter can be set up to display the thermocouple or RTD input on the main display and the Modbus
®
input on the second display.
The relays and analog output can be programmed to operate from the
Modbus
®
PV input.
Front Panel Buttons Operation
Button
Symbol
Description
Press to enter or exit Programming Mode, view settings, or exit max/min readings.
Press to reset max/min readings or other parameter/function assigned through the User menu.
Press to display max/min readings or other parameter/function assigned through the User menu.
Press to acknowledge relays or other parameters/function assigned through the User menu.
Function Keys Operation
During operation, the programmable function keys operate according to the way they have been programmed in the Advanced Features – User menu.
The table above shows the factory default settings for F1, F2, and F3.
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Temperature Panel Meter Instruction Manual
Maximum/Minimum Readings
The max & min readings (peak & valley) reached by the process can be displayed either continuously or momentary:
1. Display briefly by assigning to the F1-F3 function keys or to the digital inputs in the User menu.
2. Display continuously by assigning either display to max/min through the Display menu.
Any of the F1-F3 function keys (buttons) and the digital inputs can be programmed to reset the max & min readings. The meters are set at the factory to display the max reading by pressing the Up Arrow/F2 button and to use the Right Arrow/F1 button to access the Reset menu.
To display max reading using function key with factory defaults:
1. Press Up Arrow/F2 button to display maximum reading since the last reset/power-up.
2. To reset max/min press Right Arrow/F1 button to access the Reset menu. The max & min displays are reset to actual values.
3. Press Menu to exit max/min display reading.
To display max/min readings continuously:
Assign either display to Max (d Hi), Min (d Lo), or toggle between Max and Min (d HL) every 10 seconds.
Dsplay
setup
big
dsplay
Little
dsplay
d Hi
big
d Lo
big
d HL
big
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Temperature Panel Meter Instruction Manual
TROUBLESHOOTING
The rugged design and the user-friendly interface of the meter should make it unusual for the installer or operator to refer to this section of the manual. However, due to the many features and functions of the meter, it’s possible that the setup of the meter does not agree with what an operator expects to see.
If the meter is not working as expected, refer to the Diagnostics menu and recommendations below.
Diagnostics Menu (diag)
The Diagnostics menu is located in the Advanced Features menu, to access Diagnostics menu see Advanced Features Menu, page 61.
It provides an easy way to view the programmed parameter settings for troubleshooting purposes. Press the Enter button to view the settings and the Menu button to exit at any time.
For a description of the diagnostic messages, see Advanced Features
Menu &
Display Messages, page 62.
Determining Software Version
To determine the software version of a meter:
1. Go to the Diagnostics menu (diAG) and press Enter button.
2. Press Up Arrow button and scroll to Information menu (Info).
3. Press Enter to access the software number (SFT) and version
(UER) information. Write down the information as it is displayed.
Continue pressing Enter until all the information is displayed.
4. The meter returns to Run Mode after displaying all the settings.
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Temperature Panel Meter Instruction Manual
Reset Meter to Factory Defaults
When the parameters have been changed in a way that is difficult to determine what’s happening, it might be better to start the setup process from the factory defaults.
Instructions to load factory defaults:
the Features menu. See Advanced Features
Menu
, page 61.
2. Press Up Arrow to go to Diagnostics menu
3. Press and hold Right Arrow for five seconds, press
Enter when display flashes reset.
Note: If Enter is not pressed within three seconds, the display returns to the Diagnostics menu.
4. The meter goes through an initialization sequence (similar as on power-up), and loads the factory default settings.
Run Mode
145.6F
S t a t o r
Press & hold Menu for
3 sec to access
Advanced features
diaG reset
Press & hold right arrow for
3 sec to reset meter
146 o
F temp
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Temperature Panel Meter Instruction Manual
Factory Defaults & User Settings
The following table shows the factory setting for most of the programmable parameters on the meter. Next to the factory setting, the user may record the new setting for the particular application.
Model: ______________ S/N: _______________ Date: _________
Parameter Display Setting Setting
Input type
Temp scale
Adjust
RTD total
Filter
Bypass
Decimal point
Display assignment
Big display (Main)
Little display (Small)
Display intensity
Relay 1 action
Relay 1 set point
Relay 1 reset point
Relay 2 action
Relay 2 set point
Relay 2 reset point
Relay 3 action
Relay 3 set point
Relay 3 reset point
Relay 4 action
Relay 4 set point input
F or C
Adjust rtdtot filter bypass dddd o
F
Set 2
RSt 2
Act 3
Set 3
RSt 3
Act 4
Set 4
Dsplay big
Little d-Inty
Act 1
Set 1
RSt 1
Act 2
Type J TC
°F
0.0
1
70
0.2
No decimal
PV: Temperature
Eng units: Temp
8
Automatic
100
50
Automatic
200
150
Automatic
300
250
Automatic
400
80
Temperature Panel Meter
Parameter Display
Relay 4 reset point
Fail-safe relay 1
Fail-safe relay 2
Fail-safe relay 3
Fail-safe relay 4
On delay relay 1
Off delay relay 1
On delay relay 2
Off delay relay 2
On delay relay 3
Off delay relay 3
On delay relay 4
Off delay relay 4
Input break relay 1
Input break relay 2
Input break relay 3
Input break relay 4
Display 1 analog out
Output 1 value
Display 2 analog out
Output 2 value
Source analog output
Overrange output
Underrange output
Input break output
Maximum output
Instruction Manual
Setting Setting
ignore ignore
Dis 1
Out 1
Dis 2
Out 2
Source
O-rang u-rang break mAx
RSt 4
Fls 1
Fls 2
Fls 3
Fls 4
On 1
Off 1
On 2
Off 2
On 3
Off 3
On 4
Off 4 ignore ignore
81
350
Off
Off
Off
Off
0.0 sec
0.0 sec
0.0 sec
0.0 sec
0.0 sec
0.0 sec
0.0 sec
0.0 sec
Ignore
Ignore
Ignore
Ignore
0.0
4.000 mA
2000.0
20.000 mA
Process Variable
21.000 mA
3.000 mA
1.000 mA
23.000 mA
Temperature Panel Meter
Parameter Display
Minimum output
Slave ID
Baud rate
Transmit delay
Parity
Byte-to-byte timeout
F1 function key
F2 function key
F3 function key
Digital input 1
Digital input 2
Digital input 3
Digital input 4
Digital output 1
Digital output 2
Digital output 3
Digital output 4
Password 1
Password 2
Password 3
Pass 1
Pass 2
Pass 3 min
F3 dI 1 dI 2 dI 3 dI 4 dO 1 dO 2 dO 3 dO 4
SlavId baud
Tr dly
Parity t-byt
F1
F2
Instruction Manual
Setting Setting
0.000 mA
247
9600
10 ms
Even
010 (0.1 sec)
Reset max & min
Big display: Max (Hi)
Acknowledge relays
Menu
Right Arrow
Up Arrow
Enter
Alarm 1
Alarm 2
Alarm 3
Alarm 4
000000 (unlocked)
000000 (unlocked)
000000 (unlocked)
82
Temperature Panel Meter Instruction Manual
Troubleshooting Tips
Symptom Check/Action
No display at all
Check power at power connector.
Not able to change setup or programming, Locd is displayed
Meter is password-protected, enter correct six-digit password to unlock.
Meter displays error message during calibration (Error)
Check:
Meter displays
1.
99999
2.
-9999
Display is unstable
Display response is too slow
2. Type and range selector switches.
3. Input selected in Setup menu.
Check:
1. Input selected in Setup menu.
2. Corresponding signal at Signal connector.
Check:
1. Input signal stability and value.
2. Filter and bypass values (increase).
Check filter and bypass values.
Display reading is not accurate
Check:
Display does not respond to input changes, reading a fixed number
Display alternates between
1.
Hi
and a number
2.
Lo
and a number
Relay operation is reversed
2. Input selection in Setup menu.
Check:
1. Display assignment, it might be displaying max, min, or set point.
Press Menu to exit max/min display readings.
Relay and status LED do not respond to signal
Flashing relay status LEDs
Meter not communicating with application programs
If the display locks up or the meter does not respond at all
Other symptoms not described above
Check:
1. Fail-safe
Setup
menu.
2. Wiring of relay contacts.
Check:
1. Relay action in Setup menu.
2. Set and reset points.
Relays in manual control mode or relay interlock switches opened.
Check:
1. Serial adapter and cable. settings.
3. Meter address and baud rate.
Cycle the power to reboot the microprocessor.
Call Technical Support for assistance.
83
Temperature Panel Meter
MOUNTING DIMENSIONS
Instruction Manual
1.76"
(45 mm)
2.45"
(62 mm)
0.59"
(15 mm)
4.77"
(121 mm)
5.05"
(128 mm)
Figure 21. Meter Dimensions - Side View
4.17"
(106 mm)
3.61"
(92 mm)
4.68"
(119 mm)
Figure 22. Meter Dimensions - Top View
84
Temperature Panel Meter Instruction Manual
Figure 23: 1/8 DIN Panel Cutout Template
85
Temperature Panel Meter Instruction Manual
86
Temperature Panel Meter Instruction Manual
NOTES
87
LTI Temperature Input Meter Instruction Manual
Dwyer Instruments, Inc.
PO Box 373
Michigan City, IN 46361 USA
Tel. (800) 872-9141 • Fax (219) 872-9057
LIM7000DW_C
SFT063 Ver 2.200 & up
06/11
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Table of contents
- 3 Table of Contents
- 7 INTRODUCTION
- 7 ORDERING INFORMATION
- 9 SPECIFICATIONS
- 9 General
- 10 Temperature Input
- 11 Relays
- 12 Isolated 4-20 mA Transmitter Output
- 13 RTU Serial Communications
- 13 PMA-12 Digital Input & Output Expansion Module
- 14 COMPLIANCE INFORMATION
- 14 Safety
- 14 Electromagnetic Compatibility
- 15 SAFETY INFORMATION
- 16 INSTALLATION
- 16 Unpacking
- 16 Panel Mounting Instructions
- 17 Configuration for 12 or 24 VDC Power Option
- 18 Connections
- 19 Connectors Labeling
- 19 Power Connections
- 20 Signal Connections
- 22 Connections for Averaging RTD Sensors
- 23 RTU Serial Communications
- 23 Relay Connections
- 24 Switching Inductive Loads
- 25 4-20 mA Output Connections
- 25 Analog Output Transmitter Power Supply
- 26 External Relays & Digital I/O Connections
- 27 Interlock Relay Feature
- 28 SETUP AND PROGRAMMING
- 29 Front Panel Buttons and Status LED Indicators
- 30 Display Functions & Messages
- 33 Main Menu
- 34 Setting Numeric Values
- 37 Setting the Input Signal (input)
- 37 Selecting the Temperature Scale (F or C)
- 37 Setting the Decimal Point (dEc pt)
- 37 Setting the Display Parameter & Intensity (dsplay)
- 38 Display Setup Menu
- 39 Character Set for Engineering Units Display (d unit)
- 40 Setting the Relay Operation (relay)
- 42 Setting the Relay Action
- 43 Programming Set and Reset Points
- 43 Setting Fail-Safe Operation
- 43 Programming Time Delay
- 43 Relay Action for Loss of Input (Input Break)
- 45 Relay and Alarm Operation Diagrams
- 45 High Alarm Operation (Set > Reset)
- 46 Low Alarm Operation (Set < Reset)
- 47 High Alarm with Fail-Safe Operation (Set > Reset)
- 48 Low Alarm with Fail-Safe Operation (Set < Reset)
- 49 Relay Alternation Control Operation
- 50 Relay Sampling Operation
- 51 Signal Loss or Input Break Relay Operation
- 52 Time Delay Operation
- 53 Relay Operation Details
- 53 Overview
- 53 Relays Auto Initialization
- 53 Fail-Safe Operation
- 54 Front Panel LEDs
- 54 Latching and Non-Latching Relay Operation
- 55 Non-Latching Relay (Auto)
- 55 Non-Latching Relay (A-nman)
- 55 Latching Relay (LatcH)
- 56 Latching Relay (Lt-Clr)
- 56 Acknowledging Relays
- 57 Setting Up the Interlock Relay (Force On) Feature
- 59 Protecting or Locking the Meter
- 60 Making Changes to a Password Protected Meter
- 60 Disabling Password Protection
- 61 Advanced Features Menu
- 62 Advanced Features Menu & Display Messages
- 63 Offset Adjust (Adjust)
- 64 Recalibration of the Meter (t CAL)
- 66 Noise Filter (filter)
- 66 Noise Filter Bypass (bypass)
- 67 RTU Serial Communications (serial)
- 68 Select Menu (SElect)
- 69 Analog Output Programming (AoutPr)
- 70 Programmable Function Keys User Menu (user)
- 71 Internal Temperature Calibration (ICAL)
- 74 Meter Copy Function (Copy)
- 76 METER OPERATION
- 76 Front Panel Buttons Operation
- 76 Function Keys Operation
- 77 Maximum/Minimum Readings
- 78 TROUBLESHOOTING
- 78 Determining Software Version
- 79 Reset Meter to Factory Defaults
- 80 Factory Defaults & User Settings
- 83 Troubleshooting Tips
- 84 MOUNTING DIMENSIONS