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简单介绍：
The display height on the standard Trident meter is 0.56"
(14.2 mm) and on the Trident X2 the supersized display height is an astounding 1.2" (30.5 mm). The Trident X2 can be read easily from distance
详情介绍：
Features
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FEATURE RICH AND SIMPLE TO USEThe Model 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.
VERSATILE OPERATIONLook 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 free Modbus RTU protocol provide all the utility you need to handle all the common applications. Maximum/MinimumTo display the maximum and minimum readings since the last reset/power-up, use the Up arrow/Max buttonPowerful Relay FunctionalityAll relay functions are set up from the front panel or from a PC running MeterView® or LabView™ software.
Pump AlternationThe Trident, in pump alternation mode, will automatically alternate two pumps:
Isolated 4-20 mA Transmitter OutputThe Trident's Isolated 4-20 mA output option converts the Trident into a transmitter with a digital display; perfect for temperature applications!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 RS-232 and RS-422/485 communications. Converters are available for isolated and non-isolated RS-232 to RS-422/485 and USB to RS-422/485. Modbus RTUUse the Trident’s Modbus RTU communications to connect the Trident to a PLC, SCADA system or other digital device.EASY SETUP AND PROGRAMINGThe 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 ButtonsThe 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, click here.Trident Virtual Meter
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! The MeterView screen shot above shows how the input is selected. Notice there are tabs for Scaling, Relays/Alarms, Advanced, and Factory Values. Meter CopyThe 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 requires the optional cable assembly (PDA7420), see the ordering information for complete details. NEMA 4 & 4X FIELD ENCLOSURESPlastic, stainless steel, and painted steel NEMA 4X enclosures for up to 10 Trident meters.
DATA ACQUISITIONDigital 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 Sample File Generated by MeterView® Great for tank level monitoring!
Process & Temperature InputsThe 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 InputsSetting 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. Transmitter Powered by External Supply  Transmitter Powered by Internal Supply (optional) Current Overload ProtectionTo 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 InputsSetting 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. Thermocouple and RTD Inputs Connectors Location Rear View QUICK INSTALLATIONThe 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 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 SPECIFICATIONSExcept where noted all specifications apply to operation at +25°C. GeneralDisplay: 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 Operating Temperature: 0 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 InputsInputs: Field selectable: 0-20 mA, 4-20 mA, 1-5 V, ±10 VAccuracy: ±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: ±50 PPM/°C 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 InputsInputs: 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.
RelaysRating: 2 Form C (SPDT); rated 3 A @ 30 VDC or 3 A @ 250 VAC resistive load; 1/14 HP @ 125/250 VAC inductive loadsDeadband: 0-100% FS, user selectable High or Low Alarm: User may program any alarm for high or low Relay Operation:
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 OutputScaling 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:
Serial CommunicationsCompatibility: 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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