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Model PD691
The PD691 Universal mV Meter accepts all the standard strain gauge and load cell signals: 0-30 mV, 0-200 mV, +/-15 mV and +/-100 mV and displays these signals in engineering units on a 4-1/2 digit display. The display also includes an extra zero which may be used to handle numbers up to +/-199,990. Standard features include field selectable 5, 10 or 24 VDC excitation power supply, peak hold, capture or programmable tare, and more. Universal mV Meter
Features Specifications Order Info
Features
- 0-30 mV, 0-200 mV, +/-15 mV, +/-100 mV Field Selectable Inputs
- 5, 10 or 24 VDC Field Selectable Excitation Power Supply
- Easy Single Button Scaling with Lockout Feature
- 11 Point Linearization
- Peak Hold Feature
- Capture or Programmable Tare Feature
- Steady, Accurate Display to +/-199,990
- NEMA 4X Front Panel
- 4 Visual Alarm Points with Front Panel LED Status Indication
- 2 or 4 Relays + 4-20 mA Output Options
LED Status Indication
A green LED labeled "T" illuminates when the PD691 displays a tared value and a green LED labeled "P" illuminates when the PD691 displays a peak value.
Top Features Specifications Order Info
Ordering Information
Model: Description: 115 VAC PD691-3-N No Options PD691-3-14 2 Relays PD691-3-15 4-20mA Output PD691-3-16 2 Relays + 4-20 mA Output PD691-3-17 4 Relays PD691-3-18 4 Relays + 4-20 mA Output 230 VAC PD691-4-N No Options PD691-4-14 2 Relays PD691-4-15 4-20mA Output PD691-4-16 2 Relays + 4-20 mA Output PD691-4-17 4 Relays PD691-4-18 4 Relays + 4-20 mA Output Note: A -G may be added at in the part number to call out meters with a green display, ex. PD691-3G-14
Note 2: The PD691 can be modified to have the external acknowledge terminal to become an external TARE terminal, contact Leighton Stone Corporation for details.Top Features Specifications Order Info
Specifications
Basic Meter
- INPUTS: Field selectable, 0-30 mV, 0-200 mV, +/-15mV, +/-100mV.
- DISPLAY: Bright, large, 0.56" (14.2mm) high efficiency red or green LED. 4-1/2 digits + extra zero; +/-19999(0).
- ISOLATED POWER SUPPLY: Selectable 5 or 10 VDC +/-5% @ 50 mA; or 24 VDC +/-5% @ 20 mA. Available for either strain gauge or 4-20 mA output option.
- PEAK HOLD: Captures the peak reading and displays it via the front panel ENTER button.
- PEAK HOLD INDICATION: Front panel LED.
- TARE: 2 Modes,
- Capture - Sets a currently displayed reading to zero via front panel TARE button and may be reset at any time.
- Programmable - Automatically subtracts a user selected tare value from the actual reading.
- TARE INDICATION: Front panel LED.
- ACCURACY: 0.05% of full scale, +/-1 count. Non-volatile Memory: All programming values are stored in non-volatile memory for ten years if power is lost.
- LOCKOUT: Dip switch restricts modification of calibration values.
- POWER: 115 VAC or 230 VAC +/-10%, 50/60 Hz, 10 VA.
- ENCLOSURE: 1/8 DIN, high impact plastic, UL 94V-0.
- FRONT PANEL: NEMA 4X, panel gasket provided.
- CONNECTIONS: Removable screw terminal block (provided).
- ALARM POINTS: 4, any combination of high or low alarms.
- ALARM STATUS INDICATION: Front panel LED.
- ALARM DEADBAND: 0-100% of full scale, user selectable.
- UL FILE NUMBER: E160849; 508 Industrial Control Equipment.
Relays
- RATING: 2 or 4 relays; SPDT (form C). The contacts are rated 2 Amp @ 30 VDC or 2 Amp @ 250 VAC resistive load; 1/14 HP @ 125 / 250 VAC for NC contacts and 1/10 HP @ 125 / 250 VAC for NO contacts, inductive load.
- RESET: User select. 1. Automatically when the input passes the reset point. 2. Automatically + manually (via user supplied switch).
- 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. May be disabled with internal jumper.
- AUTO INITIALIZATION: When power is applied to the meter, the relays will always reflect the state of the input to the meter.
- DEADBAND: 0-100%, User Selectable.
Isolated 4-20 mA Transmitter Output
- 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% FS, +/-.004 mA
- ISOLATION: 500 VDC or peak AC, input-to-output or input/output-to-power line.
- EXTERNAL LOOP POWER SUPPLY: 35 V max.
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