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Test & Measurement
Instruments
PD644 Javelin D High-Voltage DC Digital Panel Meter
The Javelin D is an easy-to-use, 1/8 DIN digital voltmeter that accepts a DC voltage input up to 300 VDC. It features a built-in 4-20 mA isolated transmitter, RS-485 serial communication capability, and a NEMA 4X/IP65 rated front. The four front panel buttons provide quick and simple access to programming and operation functions. There are no jumpers, and no need to ever open the case. After completing setup of one meter, additional meters can be cloned using the time-saving copy function. The optional Form C relays can be used for alarm indication or process control applications. The Modbus® RTU serial communication upgrade enables the Javelin D Digital Voltmeter to operate as a Modbus® slave in RS-485 multi-point data acquisition systems.
Features
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Specifications & Spare Parts
General
| Input: | 0-300 VDC |
| Display: | 0.56″ (14.2 mm) red LED, 4 digits (-1999 to 9999) |
| Accuracy: | ±0.05% FS ±1 count |
| Display Intensity: | Eight user-selectable intensity levels |
| Decimal Point: | Up to 3 decimals: d.ddd, dd.dd, ddd.d, or dddd |
| Front Panel: | NEMA 4X, IP65; panel gasket provided |
| Programming Methods: | Four front panel buttons, cloning with Copy feature, and Modbus registers |
| Noise Filter: | Programmable 2 to 199 (0 will disable filter) |
| Display Update Rate: | 5/second |
| Overrange: | Display flashes 9999 |
| Underrange: | Display flashes -1999 |
| Recalibration: | Input is calibrated at the factory; recalibration is recommended at least every 12 months. |
| Temperature Drift: | ±50 PPM/°C maximum |
| Input Impedance: | Greater than 1 MΩ |
| 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 ten 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 supply |
| Operating Temperature: | 0 to 65°C |
| Storage Temperature: | -40 to 85°C |
| Relative Humidity: | 0 to 90% non-condensing |
| Connections: | Removable screw terminals accept 12 to 26 AWG |
| Enclosure: | 1/8 DIN, high impact plastic, 94V-0, color: gray |
| Weight: | 8 oz (227 g) (including options) |
| UL File Number: | E160849; 508 Industrial Control Equipment |
| Warranty: | 3 years parts & labor |
| Extended Warranty: | 1 or 2 years, refer to Price List for details |
Serial Communications
| Compatibility: | EIA-485 |
| 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, 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. | |
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 |
| 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. |
Isolated 4-20 mA Transmitter Output
| Output Range: | 1.00 to 23.00 mA typical |
| 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 |
| Transmitter Supply: | Isolated 24 VDC ±10% @ 200 mA max |
| Isolation: | 500 V input-to-output or output-to-24 VDC supply; 4 kV input/output-to-power line |
| External Power: | 35 VDC maximum |
| Output Loop Resistance: | 10Ω to 700Ω at 24 VDC, 100Ω to 1200Ω at 35 VDC (external) |
