The PD693 instrument is a frequency input meter with flow rate, totalizer, and batch control capabilities housed in a 1/8 DIN high-impact plastic enclosure with a NEMA 4X front. It accepts pulse or square wave 0-5 V or 0-12 V, TTL; open collector, and switch contact closure signals; and displays these signals in engineering units on a 0.56" high 4½ digit LED display. The meter also provides one isolated 12 VDC or 24 VDC power supply to drive either the input or output loops. Options include up to 4 relays for alarms or batch controlling as well as an isolated 4-20 mA transmitter output.

Except where noted all specifications apply to operation at +25°C.

INPUTS
Field selectable: Pulse or square wave 0-5 V or 0-12 V @ 30 kHz; TTL;
Open Collector 4.7 kilohms pull-up to 12V @ 30 kHz; Switch Contact 4.7 kilohms pull-up to 12 V @ 40 Hz.

DISPLAY
Six digit, 0.56" (14.2 mm) high efficiency red seven-segment LED. Rate: -19,999(0) to 29,999(0) with selectable extra zero.

Total: 0 to 999,999; automatic lead zero blanking.

DECIMAL POINT
Process/rate: 2.9999, 29.999, 299.99, 2999.9, or extra zero may be turned on 299990. Total: 0 TO 999,999; automatic lead zero blanking.

CALIBRATION RANGE
May be calibrated using K-factor scaling, internal calibration or by applying an external calibration signal. Field programmable K-factor converts input pulses to rate in engineering units. May be programmed from 0.0001 to 999,999 pulses/unit.

INPUT IMPEDANCE
Pulse input greater than 300 kilohms @ 1 kHz
Open Collector/Switch Input: 4.7 kilohms pull-up resistor to 12 V

LOOP POWER (AC units only)
Field Selectable, isolated: 12 VDC @ 50 mA for sensor supply or; 24 VDC @ 20 mA regulated ±5%. Maximum loop resistance of 1200 ohms.

LINEAR INPUT ACCURACY
±0.1% of full scale

11 POINT LINEARIZATION
Minimum span between inputs is 3 Hz

ALARM POINTS
Four, any combination of high or low alarms

ALARM POINT DEADBAND
0-100% of full scale, user selectable

ALARM STATUS INDICATION
Front panel LED

PEAK HOLD (DISPLAY PEAK)
Captures the peak process/rate and displays it via the front panel ENTER button

PEAK HOLD INDICATION
Front panel flashing R LED

LOCKOUT
Jumper JP2 restricts modification of calibration values.

NON-VOLATILE MEMORY
All programming values are stored in non-volatile memory for a minimum of ten years if power is lost.

POWER
AC Power: 115 or 230 VAC ±10%, 50/60 Hz, 12 VA
DC Power: 18-36 VDC, 6 watts maximum (PD693 DC version not UL Listed)

ISOLATION
AC powered 1500 VAC; DC powered 500 VDC

NORMAL MODE REJECTION
64 dB at 50/60 Hz

ENCLOSURE
1/8 DIN, high impact plastic, UL 94V-0

FRONT PANEL
Type 4X, NEMA 4X, Panel gasket provided

ENVIRONMENTAL
Operational ambient temperature range: 0 to +60°C
Storage temperature range: -40 to +85°C
Relative humidity: 0 to 90% non-condensing

CONNECTIONS
Removable screw terminal blocks, accept 22 to 12 AWG wire

OVERALL DIMENSIONS
2.30 x 4.25 x 5.30 in (58 x 108 x 135 mm)

WEIGHT
Approximately 16 oz (454 g); basic model, no options

WARRANTY
1 year parts and labor

EXTENDED WARRANTY
Warranty may be extended an additional 12 months by returning the Product Registration Form within 2 months from date of purchase.

UL FILE NUMBER
E160849; 508 Industrial Control Equipment (PD693 DC powered units are not UL listed.)

LOW-FLOW CUTOFF
Any input below the low-flow cutoff value will result in a display of zero. May be set from 1 count to 100% F.S., user selectable. To disable low-flow cutoff, program cutoff value to zero. Totalizer is based on rate display. So, inputs below the low-flow cutoff value will not affect the totalizer. (Low-flow cutoff ignored in PD693 K-factor mode.)

ALTERNATING DISPLAY
Display may be programmed to alternate between rate and total every 10 seconds.

TOTAL DISPLAY
0 to 999,999; automatic lead zero blanking

TOTAL DECIMAL POINT
May be set in any of the following positions:

9.99999, 99.9999, 999.999, 9999.99, or 99999.9 Total decimal point is independent of process/rate decimal point.

TOTALIZER
Calculates total based on rate and field programmable multiplier to display total in engineering units. Time base must be selected according to time units in which rate is displayed.

TOTALIZER ROLLOVER
Totalizer rolls over when display exceeds 999,999.
Relay status reflects display.

TOTALIZER PRESETS
Up to four, user selectable under Setup menu. Any set point can be assigned to total and may be programmed anywhere in the range of the meter.

PRESET OFFSET
Relays assigned to total can be programmed to trip at any point below the next relay’s preset value.

PROGRAMMABLE DELAY ON RELEASE
If the meter is programmed to reset total to zero automatically when the highest preset is reached, then a delay will occur before the total relays reset. This delay can be programmed anywhere between 1 and 999 seconds.

PRIORITY BATCH PROGRAMMING
This feature allows the user to quickly change preset values without going into the main menu by holding the ENTER button for more than 3 seconds.

TOTAL RESET
Via front panel ENTER button, external contact closure, or automatically via user selectable preset value.

TOTAL RESET LOCKOUT
Meter may be programmed so total cannot be reset from the front panel.

ASSIGNED TO PROCESS/RATE OR TOTAL
Any relay may be assigned to process/rate or total.

ELECTRICAL NOISE SUPPRESSION
A suppressor (RC network) to prolong the life of the relays should be connected to each relay contact switching inductive loads. The suppressor provides a degree of protection against electrical noise caused by inductive loads. Recommended suppressor value, 0.01 µF/470 ohms, 250 VAC.

DEADBAND
0-100% of full scale, user selectable

HIGH OR LOW ALARM
User may program any alarm for a high or low trip point.

RELAY OPERATION
Latching or non-latching

FAIL-SAFE OPERATION
Relay coils are energized in non-alarm condition. In case of power failure, relays will go to alarm state. Fail-safe operation may be disabled, by removing jumper J2 located on the Options PCB.

AUTO INITIALIZATION
When power is applied to the meter, relays assigned to total will reflect the state of the accumulated total value in memory. Relays assigned to process/rate will reflect the state of the input to the meter.

RELAYS RESET
User select via JP3 jumper array and SetuP menu

1. When total is reset to zero, if set up for external total reset
2. After delay has elapsed, if set up for internal total reset
3. Manual any time, if set up for external total reset (via user supplied external contact closure at terminals AK and CM or front panel ACK button). Manual reset resets all manually resetable relays.

1. Automatic reset only
2. Manual reset only, at any time
3. Automatic plus manual reset at any time
4. Manual reset only after alarm condition has been corrected

Automatic reset
Relays will automatically reset when the input passes the reset point.

Manual reset
It can be performed via user supplied external contact closure at terminals AK and CM or front panel ACK button. Manual reset resets all manually resetable relays.

NO EQUIPMENT NEEDED
The 4-20 mA output from the meter is calibrated without the use of a calibrator.

OUTPUT LOOP POWER
24 VDC ±5% @ 20 mA, regulated. Maximum loop resistance is 1200 ohms. Output loop is isolated from input.

ACCURACY
±0.1% F.S., ±0.004 mA

ISOLATION
500 VDC or peak AC, input-to-output or input/output-to-power line

EXTERNAL LOOP-POWER SUPPLY
35 VDC max

* Part numbers for Option Cards when purchased Separately.