PRECISION DIGITAL Trident PD765 User manual

Precision Digital corPoration www.predig.com
PD765
Trident Series Process & Temperature Meters
TRIDENT
PROCESS & TEMP
• 4-20 mA, ± 10 V, TC & RTD Inputs
• 4-Digit Display, 0.56"(14.2 mm) or 1.20"(30.5 mm)
• Linear or Square Root with Low-Flow Cutoff
• Operating temperature range of between -40°C and 65°C
• Max/Min Display
• Type 4X, NEMA 4X, IP65 Front
• Universal Power Supply 85-265 VAC
• 12-36 VDC/12-24 VAC Power Option
• 2 Relays + 4-20 mA Output Option
• 24 VDC @ 200 mA Transmitter Power Supply Options
• USB, RS-232, & RS-485 Serial Communication Options
• Shallow Depth Case 3.6"Behind Panel
• Free Modbus®RTU & LabVIEW™ Driver
• Copy Meter Settings to Other Meters
• Free MeterView®Software - Configuration & Data Acquisition
• Sunlight Readable Display

Trident & Trident X2 Displays
FEATURE RICH & SIMPLE TO USE
The PD765 Trident digital panel meter is one of the most versatile
digital panel meters on the market and will satisfy a wide variety
of process applications. The Trident can be field programmed to
accept process voltage (0-5V, 1-5V, etc) and current (4-20 mA)
inputs, 100 Ohm RTDs, and the four most common thermocouples.
It is housed in a shallow-depth, 1/8 DIN enclosure that features a
NEMA 4X front panel and convenient mounting hardware. There
are two power options for the Trident: 85 to 265 VAC or 12-36
VDC and it can provide 24 VDC to power the transmitter if needed.
Programming and setup can be performed with the four front panel
pushbuttons, free MeterView software, or using the Copy function.
TWO DISPLAY SIZES
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 Trident X2 can be read easily from distances of up
to 30 feet! Both meters are available with all Trident features.
The intensity of the display on both versions of the Trident can be
adjusted to compensate for various lighting conditions, including
direct sunlight.
TRIDENT
TRIDENT
(Actual Size Digits)
0.56"(14.2 mm) Display 1.2" (30.5 mm) Display
VERSATILE OPERATION
Look to the Trident meter for the key features and options you
want and don’t worry about getting bogged down in a confusing
array of things you don’t need. The Trident’s Max/Min function, 2
relays + 4-20 mA output, serial communication, and Modbus RTU
options provide all the utility you need to handle all the common
applications.
Maximum/Minimum
To display the maximum and minimum readings since the last reset/
power-up, use the Up arrow/Max button
Serial Communication Adapters & Converters
A wide variety of serial communication adapters and converters
are available for the Trident meter. A serial adapter and
Precision Digital’s free MeterView software allows the Trident
to be programmed from a computer and to connect to a PC
for data acquisition. Adapters are available for USB, RS-232,
and RS-485 communications. Converters are available for
isolated and non-isolated RS-232 to RS-422/485 and USB to
RS-422/485.
PDA8006 PDA7232 PDA7422
Powerful Relay Functionality
All relay functions are set up from the front panel or from a PC run-
ning MeterView®or LabView™ software.
• Automatic reset only
• Automatic or manual reset
• Latching or non-latching relays
• Pump alternation control
• On and off time delays from 0 to 199 seconds
• Fail-safe operation is user selectable
Isolated 4-20 mA Transmitter Output
The Trident’s Isolated 4-20 mA output option converts the Trident
into a transmitter with a digital display; perfect for temperature
applications!
UV Resistant
Sunlight Readable Models Front Panel
NEMA 4X Rated
www.predig.com
2
PD765 Trident Series Process & Temperature Meters

EASY SETUP AND PROGRAMMING
The Trident is easily setup and programmed using the simple four-
button programming method. The meter can also be programmed
using a PC and Precision Digital’s free MeterView software or
“cloned” with the Copy function. There is only one switch on the
entire meter, no jumpers, and no need to ever open the case.
Programming with Four Front Panel Buttons
The Trident’s four front panel buttons keep the user in
control of the programming process. To see how simple
it is to program the Trident, check out the Virtual Meter at
www.predig.com.
1
Control
Relay
Control
Relay
Main
Pump
ON
6000
OFF
1000
Backup
Pump
ON
OFF
Level
Transmitter
Relay #1 turns
the main pump
on at 6000
gallons and
turns it off at
1000 gallons.
With the Pump
Alternation
feature
activated, the
next time the
level reaches
6000 gallons,
relay #2
transfers and
starts the
backup pump.
Control
Relay
Control
Relay
Main
Pump
ON
6000
OFF
1000
Backup
Pump
OFF
ON
Level
Transmitter
2
Programming From a PC with MeterView®
Precision Digital’s free MeterView®software allows all PD765
Trident setup parameters to be programmed from a PC and to save
the configuration settings to a file for reporting or programming
other meters. And since the serial adapter is an external device,
one serial adapter can program an infinite number of meters!
•Inputtype
•Decimalpoint
•Tempunits
•Sensortype
•Scaleinput
•Nocrypticcodes
•Simpletouse
•Selectmode
•Set/resetpoints
•Fail-safeoperation
•On&offdelays
•Password
•Filter&bypass
•Transmitdelay
•Functiontype
•Cutoffvalue
Configure Input
Meter Scaling
Set Relays/Alarms
Advanced Settings
Modbus RTU
Use the Trident’s Modbus RTU communications to connect the
Trident to a PLC, SCADA system or other digital device. It is a
standard feature on all Trident models.
Pump Alternation
The Trident, in pump alternation mode, will automatically alternate
two pumps:
Meter Copy
The Copy function is used to copy (or clone) all the settings from
one Trident meter to other Trident meters in less than 10 seconds.
The Copy function is a standard feature on all meters. The Copy
feature does not require a serial communication adapter, it only re-
quires the optional cable assembly (PDA7420), see the ordering
information for
www.predig.com
3
PD765 Trident Series Process & Temperature Meters

PROCESS & TEMPERATURE INPUTS
The Trident is factory calibrated to accept 4-20 mA, ±10 VDC,
type J, K, T, or E thermocouples and 100 Ω platinum RTDs.
Process inputs can be scaled with or without applying an input
for virtually any engineering units. Temperature inputs can be
programmed to display in degrees Fahrenheit or Celsius and the
type K thermocouple can display up to 2300 °F.
Current & Voltage Inputs
Setting up the meter to accept a current or voltage input could not be
easier. All setup is performed with the front panel buttons and there
are no switches or jumpers to deal with.
Current Overload Protection
To protect the instrument from unexpected current overload, the
current input circuit contains a resettable fuse. The fuse limits
the current to a safe level when it detects a fault condition, and
automatically resets itself when the fault condition is removed.
Thermocouple & RTD inputs
Setting up the Trident to accept a thermocouple or RTD input
is simply a matter of setting a switch at the rear of the case and
selecting the input type from the menu.
The meter accepts J, K, T, or E type thermocouples as well as
two,three,orfour-wire100ΩplatinumRTDs.
Transmitter Powered by External Supply
Transmitter Powered by Internal Supply
(optional)
DATA ACQUISITION
Digital panel meters make a great front end to a PC-based data
acquisition system. They are easy to set up, can be used for a
wide range of inputs, will power the transmitter, and best of all
provide a local display of the process. Precision Digital has the
perfect package with its Trident Digital Panel Meters, a wide
selection of serial adapters and converters and free MeterView
software. Data is displayed on the PC and written to a file that
could then be imported into a spreadsheet or other application.
Data Logging up to 100 Trident Meters
PD765 Log File
Name:C:\MV3logle.htm Created: 1/7/2011 5:34:12 PM
Serial Port: Connection speed: Logging rate:
COM 1 2400 Baud 1 update every 10 seconds
Date & Time Tag Number Address Display Units Relay 1 Relay 2
1/7/2011 5:34:12 PM Tank 1 Level 06 17.70 Feet P1 On P2 Off
1/7/2011 5:34:12 PM Tank 2 Level 07 18.18 Feet P3 Off P4 Off
1/7/2011 5:34:12 PM Tank 3 Level 08 20.54 Feet P5 On P6 Off
1/7/2011 5:34:12 PM Tank 1 Temp 09 74 °F Off Off
1/7/2011 5:34:12 PM Tank 2 Temp 10 72 °F Off Off
1/7/2011 5:34:12 PM Tank 3 Temp 11 72 °F Off Off
1/7/2011 5:34:22 PM Tank 1 Level 06 17.58 Feet P1 On P2 Off
1/7/2011 5:34:22 PM Tank 2 Level 07 18.04 Feet P3 Off P4 Off
1/7/2011 5:34:22 PM Tank 3 Level 08 19.79 Feet P5 Off P6 Off
1/7/2011 5:34:22 PM Tank 1 Temp 09 74 °F Off Off
1/7/2011 5:34:22 PM Tank 2 Temp 10 72 °F Off Off
Sample File Generated by MeterView®
www.predig.com
4
EXC T+V+ mA+ COM RTD
SWITCH
TC
TC
RTD
1 2 3 4 5 6
3 41 2 5
24V OUT POWER
COM NONO NC NC COM
RELAY2 RELAY1
4 36 5 2 1 2 12 1
P+ P-
+-
Rear View
Gasket
Front Bezel
CONNECTIONS
PD765 Trident Series Process & Temperature Meters

3.61
(92)
2.50
(64)
4.68 (119)
1.76 (45)
0.59
(15) 3.2 (81)
2.45
(62)
3.6 (91)
Notes:
1. Panel cutout required: 1.772 x 3.622 (45 x 92)
2 Panel thickness: 0.040 – 0.250(1.0 – 6.4)
3. Mounting brackets lock in place for easy mounting
NEMA 4 & 4X ENCLOSURES
Thermoplastic and stainless steel NEMA 4X, and painted steel
NEMA 4 enclosures for up to 10 Trident meters are available.
Please visit our Enclosure Selection Utility at www.predig.com/
esu for an easy way to find the right enclosure.
PROTEX-MAX The Trident X2 can now
go anywhere as the
ProtEX-MAX! The same huge,
bright display and features of
the Trident X2 are provided in an
approved ProtEX-MAX explosion
proof enclosure. In addition,
RS-485 serial communications for
Modbus or MeterView software is
standard.AllProtEX-MAXproducts
also come with SafeTouch®
through glass buttons, for easy
programming and operation in
your hazardous area.
QUICK INSTALLATION
The Trident is housed in a shallow-depth case that is designed
for easy installation and servicing. The extra large front bezel is
rated Type 4X, IP65. The mounting brackets are locked in place
to make it easy to mount the meter in the panel. Removable
screw terminal connectors make for easy and convenient wiring.
Mounting Dimensions
PD8-765
Process&Temperature
SPECIFICATIONS
Except where noted all specifications apply to operation at +25°C.
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 levels
Front Panel: NEMA4X, 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 Amax, 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: 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.
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MΩ,Currentrange:50-
100Ω,varieswithresettablefuseimpedance
Input Overload: Protected by automatically resettable fuse
Temperature Drift:
0 to 65º C ambient -40 to 0º C ambient
Current ±0.20% FS (50 PPM/ºC) ±0.80% FS
Voltage ±0.02% FS (1.7 PPM/ºC) ±0.06% FS
Transmitter Supply: Isolated, one or two transmitter supplies
P1: 24 VDC ±10% @ 200 mA max (-10 option)
P1&P2:24VDC±10%@200mA&40mAmax(-20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kΩ
Sensor Break: All relays and alarm status LEDs go to alarm state.
3.61
(92)
2.50
(64)
4.68 (119)
1.76 (45)
0.59
(15) 3.2 (81)
2.45
(62)
3.6 (91)
www.predig.com
5
PD765 Trident Series Process & Temperature Meters

www.predig.com
LDS765_N 11/15
Precision Digital corPoration
233SouthStreet•HopkintonMA01748USA•Tel(800)343-1001•Fax(508)655-8990
Type Range Acc. (0-65ºC) Acc. (-40-0ºC)
J -58º to 1382ºF
-50º to 750ºC ±2ºF ±1ºC ±5°F ±3°C
K -58º to 2300ºF
-50º to 1260ºC ±2ºF ±1ºC ±4°F ±2°C
T -292º to 700ºF
-180º to 371ºC ±2ºF ±1ºC ±13°F ±7°C
E -58º to 1700ºF
-50º to 927ºC ±2ºF ±1ºC ±11°F ±6°C
RTD -328º to 1382ºF
-200º to 750ºC ±1ºF ±1ºC ±5°F ±3°C
Relays
Rating: 2 Form C (SPDT); rated 3 A @ 30 VDC or 3A @ 250 VAC
resistive load; 1/14 HP
(≈50watts)@125/250VACforinductiveloadssuchascontactors,
solenoids, etc.
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, and EIA-485 with PDA7232 and PDA7422
Trident adapters.
Protocol: PDC 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
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.
ORDERING INFORMATION
TridentX2PD765•LargeDisplayModels
85-265 VAC
Model 12-36 VDC Model Options Installed
PD765-6X0-00 PD765-7X0-00 None
PD765-6X0-10 24 VDC Supply
PD765-6X2-00 PD765-7X2-00 2 Relays
PD765-6X2-10 2 Relays + 24 VDC Supply
PD765-6X3-00 PD765-7X3-00 4-20 mA Output
PD765-6X3-10 4-20 mA Out + 24 VDC Supply
PD765-6X3-20 4-20 mA Out + Dual 24 VDC Supplies
PD765-7X5-00 2 Relays + 4-20 mA Output
PD765-6X5-10 2 Relays + 4-20 mA Output + 24 VDC Supply
TridentPD765•StandardDisplayModels
85-265 VAC
Model 12-36 VDC Model Options Installed
PD765-6R0-00 PD765-7R0-00 None
PD765-6R0-10 24 VDC Supply
PD765-6R2-00 PD765-7R2-00 2 Relays
PD765-6R2-10 2 Relays + 24 VDC Supply
PD765-6R3-00 PD765-7R3-00 4-20 mA Output
PD765-6R3-10 4-20 mA Out + 24 VDC Supply
PD765-6R3-20 4-20 mA Out + Dual 24 VDC Supplies
PD765-7R5-00 2 Relays + 4-20 mA Output
PD765-6R5-10 2 Relays + 4-20 mA Output + 24 VDC Supply
Accessories
Model Description
PDA7420 Trident Meter Copy Cable, 7' (2.1 m)
PDA7422 Trident RS-485 Serial Adapter
PDA7232 Trident RS-232 Serial Adapter
PDA7485-I RS-232 to RS-422/485 Isolated Converter
PDA7485-N RS-232 to RS-422/485 Non-Isolated Converter
PDA8006 USB Serial Adapter
PDA8232-N USB to RS-232 Non-Isolated Converter
PDA8485-I USB to RS-422/485 Isolated Converter
PDA8485-N USB to RS-422/485 Non-Isolated Converter
PDX6901 Suppressor(snubber):0.01μF/470Ω,250VAC
Disclaimer
The information contained in this document is subject to change without notice. Precision Digital
Corporation 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.
©2006-2015 Precision Digital Corporation. All rights reserved.
Your Local Distributor is:
PD765 Trident Series Process & Temperature Meters