Universal Flow Totalizer & Tachometer/Rate Meters
Precision Digital's new Universal Rate/Totalizer Batch Controller may be used to display rate and total as well as provide simple automatic or manual batch control. Models are available for analog inputs such as 4-20 mA or frequency/pulse inputs such as pulse, open collector or switch closures. These meters feature a full six digit display, programmable time base of second, minute and hour, as well as a user programmable multiplier out to five decimal points. They also provide 24 VDC excitation for analog inputs and up to 50 mA for frequency/pulse inputs.
- Features
- Ordering Information
- Specifications
Universal mV Meter(Model PD692)
- Alternating Rate/Total Display
- Priority Batch Programming
- Preset Value Tracking
- Automatic, External or Menu Totalizer Reset
- Rate Displayed in Engineering Units per Second, Minute, or Hour
- Total Displayed in any Engineering Unit
- Peak Hold Feature
- Green Display Available
Analog Input
- 4-20 mA, 0-5 V, or 0-10 V Field Selectable Inputs
- Internal or External Calibration
- 11 Point Calibration for Non-linear Inputs
- Square Root Extraction
- Low Flow Cutoff
- Isolated 24 V Transmitter Power Supply
- 2 or 4 Relay Options
- 4-20 mA Output Option
- 18-36 VDC Powered Version Available
Ordering Information(Model PD692)
| Model: | Description: |
|---|---|
| 115 VAC | Analog Input |
| *PD692-3-N | No Options |
| *PD692-3-14 | 2 Relays (total & rate) |
| PD692-3-15 | 4-20 mA Output |
| PD692-3-16 | 2 Relays (total only) + 4-20 mA Output |
| PD692-3-17 | 4 Relays (2 total & 2 rate) |
| PD692-3-18 | 4 Relays (2 total & 2 rate) + 4-20 mA Output 2 Relays (rate only) |
| 230 VAC | |
| PD692-4-N | No Options |
| PD692-4-14 | 2 Relays (total only) |
| PD692-4-15 | 4-20 mA Output |
| PD692-4-16 | 2 Relays (total only) + 4-20 mA Output |
| PD692-4-17 | 4 Relays (2 total & 2 rate) |
| PD692-4-18 | 4 Relays (2 total & 2 rate) + 4-20 mA Output 2 Relays (rate only) |
| PD692-4-20 | 2 Relays (rate only) |
| PD692-4-21 | 2 Relays (rate only) + 4-20 mA Output |
| 18-36 VDC | |
| PD692-2-N | No Options |
| PD692-2-14 | 2 Relays (total only) |
| PD692-2-15 | 4-20 mA Output |
| PD692-2-16 | 2 Relays (total only) + 4-20 mA Output |
| PD692-2-17 | 4 Relays (2 total & 2 rate) |
| PD692-2-18 | 4 Relays (2 total & 2 rate) + 4-20 mA Output 2 Relays (rate only) |
| PD692-2-20 | 2 Relays (rate only) |
| PD692-2-21 | 2 Relays (rate only) + 4-20 mA Output |
Model: PD692
- ISOLATION: AC power 1500 VAC; DC power: 500 VDC.
- TOTALIZER: Calculates total based on rate and field programmable multiplier to display total in any engineering unit.
- TOTAL RESET: Via front panel ENTER button, external contact closure at terminals RST and COM, or automatically via user selectable preset value #2.
- PEAK HOLD: Captures the peak rate and displays it via the front panel ENTER button.
- PEAK HOLD INDICATION: Front panel flashing "R" LED.
- LOW FLOW CUTOFF: 1 count to 100% F.S., user selectable. To disable low flow cutoff, program cutoff value to zero.
- ROLL OVER: Totalizer "rolls over" when display exceeds 999,999. Relay status reflects display.
- NON-VOLATILE MEMORY: All programming values are stored in non-volatile memory for ten years if power is lost.
- LOCKOUT: Jumper at rear of instrument restricts modification of calibration values.
- ENVIRONMENTAL: Operating temperature range: 0 to +65oC
Storage temperature range: -40 to +85oC
Relative humidity: 0 to 90% non-condensing - FRONT PANEL: NEMA 4X, panel gasket provided.
- ENCLOSURE: 1/8" DIN, high impact plastic, UL 94V-0.
- CONNECTIONS: Removable screw terminal block (provided).
- UL FILE NUMBER: E160849; 508 Industrial Control Equipment.
- ANALOG INPUTS: Field selectable: 4-20 mA, 0-20 mA, 0-5 V, 1-5 V, 0-10 V.
- CALIBRATION: May be calibrated using internal calibration or by applying an external calibration signal.
- CALIBRATION RANGE: 4 mA (1 V) input may be set anywhere in range of the meter. 20 mA (5 V) may be set anywhere above or below 4 mA (1 V) input.
- LOOP POWER: (AC powered units only) Isolated, up to 20 mA at 24 VDC regulated +/-5%, noise less than 10 mVpp. Max. loop resistance of 1200 ohm. Use to power either external transmitter or 4-20 mA output signal.
- LINEAR INPUT ACCURACY: 0.05% of calibrated span, +/-1 count.
- SQUARE ROOT EXTRACTION ACCURACY: +/-0.1% F.S. +/-1 count from 10-100% of flow, +/-1% F.S. (0-10% flow).
- MINIMUM INPUT SPAN: 1.6 mA between points.
- INPUT IMPEDANCE: Voltage ranges, greater than 300 Kohm; current ranges, 100 ohm.
Relays
- RATING: 2 or 4 SPDT (form C); rated 2 Amp @ 30 VDC or 2 Amp @ 250 VAC resistive load; 1/14 HP @ 125 / 250 VAC for inductive loads.
- TOTALIZER PRESETS: 2, Relays #1 and #2 are assigned to total and may be programmed anywhere in the range of the meter; relays trip when total exceeds preset value and reset when total is reset to zero. #2 preset is user programmable to reset total to zero when preset value is reached. A delay of between 1 and 999 seconds can be programmed on the PD693 while the PD692 has a fixed value of 10 seconds before relay #1 and #2 reset.
- PRESET VALUE TRACKING: Relay #1 can be programmed to trip at any point below relay #2 preset value. If relay offset mode is selected relay #1 will always trip at a programmed offset value before relay #2 trips. ex. if the relay offset is set at 10 then relay #1 will trip at 10 counts before relay #2.
- RATE RELAYS: 2, #3 & #4 assigned to rate, any combination of high or low alarms.
- RATE ALARM DEADBAND: 0-100% of full scale, user selectable.
- RATE RELAY RESET: User selectable, relay #3 and #4
- a. Automatically when the input passes the reset point.
- b. Automatically + manually (via user supplied external contact closure at terminals ACK and COM, or front panel ACK button). Manual reset resets all manually resetable relays.
- FAILSAFE OPERATION: The relay coils are energized in the non-alarm condition. In the case of a power failure, the relays will go to the alarm state.
- AUTO INITIALIZATION: When power is applied to the meter, relays #1 and #2 will reflect the state of the accumulated Total value in memory, relays #3 and #4 will reflect the state of the input to the meter.
Isolated 4-20 mA Transmitter
Output for Rate
- CALIBRATION RANGE: Anywhere in range of meter, 501 count minimum span.
- OUTPUT LOOP RESISTANCE:
| Loop Resistance | ||
|---|---|---|
| Power Supply | Min | Max |
| 24 VDC | 10 ohm | 600 ohm |
| 36 VDC (external) | 600 ohm | 1000 ohm |
- ACCURACY: +/-0.1% F.S., +/-.004 mA
- ISOLATION: 500 VDC or peak AC, input-to-output or input/output-to-power line.
- EXTERNAL LOOP POWER SUPPLY: 35 V max.
North California Office :- 285-A Bel Marin Keys Blvd - Novato, CA - 94949 PH: (415) 382 - 9710 FAX: (415) 382 - 9720