PD765 Trident Process & Temperature Digital Panel Meter

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The Trident PD765 digital panel meter is one of the most versatile meters on the market and will satisfy a wide variety of process and temperature applications. Housed in an 1/8 DIN enclosure with a NEMA 4X front, the meter can be field programmed to accept process voltage (0-5 V, 1-5 V, etc.) and current (4-20 mA) inputs, 100 Ohm RTDs, and the four most common thermocouples. The display height on the standard Trident meter is 0.56" (14.2 mm) and on the Trident X2 the display height is an astounding 1.2" (30.5 mm). The intensity of the display can be adjusted to compensate for various lighting conditions, including direct sunlight. Programming and setup can be performed with the four front panel pushbuttons, free MeterView software, or using the copy function. Options for the PD765 include 2 relays, a 4-20 mA output, 24 V transmitter power supply, and Modbus® serial communications.

Features

  • 4-20 mA, ± 10 V, TC & RTD Inputs
  • NEMA 4X, IP65 Front
  • Shallow Depth Case 3.6" Behind Panel
  • Operating temperature range of between -40°C and 65°C
  • Universal Power Supply 85-265 VAC
  • Two Relays Option with Alternation &
    Time Delays
  • 4-20 mA Analog Output Option
  • 24 VDC @ 200 mA Transmitter Power Option
  • RS-232, RS-485 Serial Communication Options
  • Free Modbus® RTU Protocol & LabVIEW™ Driver
  • Sunlight Readable Display
  • 3 Year Warranty
  • Free MeterView Software Download
 
Specifications

General

Display: Trident: 0.56” (14.2 mm); Trident X2: 1.20” (30.5 mm) red LED, 4 digits (-1999 to 9999)
Display Intensity: Eight user selectable intensity levels
Front Panel: NEMA 4X, IP65; panel gasket provided
Programming Methods: Four front panel buttons, cloning with Copy feature, PC with MeterView or LabVIEW software, and Modbus registers. Certified LabVIEW driver available.
Noise Filter: Programmable 2 to 199 (0 will disable filter)
Display Update Rate: Process/RTD: 3.7-5/sec; TC: 1.8-2.5/sec
Overrange: Display flashes 9999
Underrange: Display flashes -1999
Recalibration: All inputs are calibrated at the factory; recalibration is recommended at least every 12 months.
Max/Min Display: Stored until reset by user or meter is turned off.
Password: Restricts modification of programmed settings.
Non-Volatile Memory: Settings stored for a minimum of 10 years.
Power Options: 85-265 VAC, 50/60 Hz; 90-265 VDC, 20 W max or 12-36 VDC; 12-24 VAC, 6 W max.
Required Fuse: UL Recognized, 5 A max, slow-blow; up to 6 meters may share one fuse.
Normal Mode Rejection: 64 dB at 50/60 Hz
Isolation: 4 kV input/output-to-power line; 500 V input-to-output or output-to-24 VDC supplies.
   -6R5 & -6X5 models only: 100 V output-to-24 VDC supply
Operating Temperature: -40 to 65°C
Storage Temperature: -40 to 85°C
Relative Humidity: 0 to 90% non-condensing
Connections:
    Power & Signal: removable screw terminal blocks accept 12 to 22 AWG.
    Serial: RJ11 header, standard on all meters.
Enclosure: 1/8 DIN, high impact plastic, 94V-0, color; gray
Weight: 9.5 oz (269 g) (including options)
UL File Number: E160849; 508 Industrial Control Equipment
Warranty: 3 years parts & labor

Process Inputs

Inputs: Field selectable: 0-20 mA, 4-20 mA, 1-5 V, ±10 V
Accuracy: ±0.05% FS ±1 count; square root: ±0.1% FS ±2 counts
Function: Linear or square root
Low-Flow Cutoff: 0 to 9999 (0 disables cutoff function)
Decimal Point: Up to 3 decimals: d.ddd, dd.dd, ddd.d, or dddd
Calibration: Scale without signal or calibrate with signal source
Calibration Range: User programmable over entire range of meter
Input Impedance: Voltage range: greater than 1 M Ω, Current Range: 50-100 Ω, varies with resettable fuse impedance
Input Overload: Protected by automatically resettable fuse
Temperature Drift:

0 to 65°C ambient -40 to 0°C ambient
Current: ±0.20% FS (50 PPM/°C) Current: ±0.80% FS
Voltage: ±0.02% FS (1.7 PPM/°C) Voltage: ±0.06% FS

Transmitter Supply: Isolated, one or two transmitter supplies
  P1: 24 VDC ±10% @ 200 mA max (-1 option)
  P1 & P2: 24 VDC ±10% @ 200 mA & 40 mA max (-2 option)

Temperature Inputs

Inputs: Factory calibrated, field selectable: type J, K, T, or E thermocouples and 100 Ω platinum RTD (0.00385 or 0.00392 curve)
Resolution: 1°; type T: 1° or 0.1°
Cold Junction Reference: Automatic
Temperature Drift: ±2°C maximum
Offset Adjustment: Programmable to ±19.9°. This parameter allows the user to apply an offset value to the temperature being displayed.
Input Impedance: Greater than 100 k Ω
Sensor Break: All relays and alarm status LEDs go to alarm state.

Input Type Range Accuracy
(0-65° C)
Accuracy
(-40-0° C)
Type J -58° to 1382° F
-50° to 750° C
±2° F
±1° C
±5° F
±3° C
Type K -58° to 2300° F
-50° to 1260° C
±2° F
±1° C
±4° F
±2° C
Type T -292° to 700° F
-180° to 371° C
±2° F
±1° C
±13° F
±7° C
Type T
0.1° Res
-199.9° to 700.0° F
-180.0° to 371.0° C
±1.8° F
±1° C
±13° F
±7.2° C
Type E -58° to 1578° F
-50° to 870° C
±2° F
±1° C
±11° F
±6° C
100 Ω RTD -328° to 1382° F
-200° to 750° C
±1°F
±1° C
±5°F
±3° C

Relays

Rating: 2 Form C (SPDT); rated 3 A @ 30 VDC or 3 A @ 250 VAC resistive load; 1/14 HP @ 125/250 VAC inductive loads
Deadband: 0-100% FS, user selectable
High or Low Alarm: User may program any alarm for high or low
Relay Operation:

  1. Automatic (non-latching)
  2. Latching
  3. Pump alternation control

Relay Reset: User selectable via front panel buttons or PC

  1. Automatic reset only (non-latching)
  2. Automatic plus manual reset at any time (non-latching)
  3. Manual reset only, at any time (latching)
  4. Manual reset only after alarm condition has cleared (latching).

Automatic Reset: Relays reset when input passes the reset point
Manual Reset: Front panel button, MeterView, Modbus registers
Time Delay: 0 to 199 seconds, on and off delays; programmable
Fail-Safe Operation: Programmable, independent for each relay. Relay coils are energized in non-alarm condition. In case of power failure; relays will go to alarm state.
Auto Initialization: When power is applied to the meter, relays will reflect the state of the input to the meter.

Isolated 4-20 mA Transmitter Output

Scaling Range: 1.00 to 23.00 mA; reverse scaling allowed.
Calibration: Factory calibrated 4.00 to 20.00 mA
Accuracy: ±0.1% FS ±0.004 mA
Temperature Drift: 50 PPM/°C
Note: Analog output drift is separate from input drift
Isolation: 500 V input-to-output or output-to-24 VDC supplies; 4 kV output-to-power line
External Power: 35 VDC maximum
Output Loop Resistance:

Loop Resistance
Power Supply Minimum Maximum
24 VDC 10 Ω 700 Ω
35 VDC (external) 100 Ω 1200 Ω

Serial Communications

Compatibility: EIA-232, EIA-422, and EIA-485 with PDA7232 and PDA7422 Trident adapters.
Protocol: Two selectable. PDC protocol (for use with MeterView) and Modbus RTU
Meter Address: PDC protocol: 0 to 99, Modbus protocol: 1 to 247
Baud Rate: 300 to 19,200 bps
Transmit Time Delay: Programmable 0 to 199 ms or transmitter always on for RS-422 communications.
Data: 8 bit (1 start bit, 1 stop bit)
Parity: None (2 stop bits), even, or odd
(Modbus only; PDC protocol does not use parity)
Byte-to-Byte Timeout: 0.01 to 2.54 seconds (Modbus only)
Turn Around Delay: Less than 2 ms (fixed)
Refer to PDC and Modbus Serial Communications Protocol manuals for details.
Note: Both downloadable protocol register tables can be found in the documentation list below.

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