DESCRIPTION
The PD692 instrument is an analog input process 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 the common process signals such as 4-20 mA, 0-5 VDC, 1-5 VDC, and 0-10 VDC and
displays these signals in engineering units on a 0.56" high 4½ digit LED display. The meter also provides one isolated 24 V 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.
SPECIFICATIONS
Except where noted all specifications apply to operation at +25°C.
INPUTS
Field selectable: 4-20 mA, 0-20 mA, 0-5 V, 1-5 V, 0-10 V
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
4 mA (1 V) input may be set anywhere in range of the meter. 20 mA (5 V) may be set anywhere in range of the meter above or below 4 mA input. An Error message will appear if input 1 signal and input 2 signal are too close together.
|
Input Range Minimum Difference Between
|
| Input 1
|
&
|
Input 2:
|
| 0-5 V |
|
0.16 V |
|
0-10 V |
|
0.32 V |
|
4-20 Ma |
|
1.60 mA |
INPUT IMPEDANCE
Voltage ranges greater than 300 kilohms; Current ranges 100 ohms
LOOP POWER (AC units only)
Isolated power supply, 24 VDC ±5% @ 20 mA regulated. Maximum loop resistance is 1200 ohms.
LINEAR INPUT ACCURACY
±0.05% of calibrated span ±1 count
ROOT EXTRACTION ACCURACY
±0.1% F.S. ±2 counts
PROGRAMMABLE EXPONENT
1.000 TO 2.999
11 POINT LINEARIZATION
|
Input Range
|
Minimum Span Between Inputs
|
| 4-20 mA
|
(1.6 mA / (Number of points -1))
|
|
0-5 V
|
(0.16 V / (Number of points -1))
|
|
0-10 V
|
(0.32 V / (Number of points -1))
|
e.g. Minimum span for an 11-point, 4-20 mA calibration is 0.16 mA between inputs.
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 J3 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
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
RATE/TOTALIZER/BATCH CONTROLLER FEATURES
RATE DISPLAY INDICATION
LED labeled R on right illuminates when meter is displaying rate or process input.
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.
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.
OPTIONS
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
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
Total relays reset
- When total is reset to zero, if set up for external total reset
- After delay has elapsed, if set up for internal total reset
- 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.
Process/rate relays reset
- Automatic reset only.
- Manual reset only, at any time.
- Automatic plus manual reset at any time.
- 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.
ISOLATED 4-20 mA TRANSMITTER OUTPUT
CALIBRATION RANGE
The transmitter output can be calibrated so that a 4 mA output is produced for any process/rate measured by the meter. The 20 mA output may correspond to any process/rate that is at least 501 counts greater or smaller than the process/rate corresponding to 4 mA. (Ex. 4 mA = 0, 20 mA = 501) If the span between 4 and 20 mA is less than 501 counts, an Error message will appear.
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
OUTPUT LOOP RESISTANCE
|
Power Supply
|
Min. Loop
Resistance |
Max. Loop
Resistance |
|
24 VDC |
10 ohms |
600 ohms |
|
35 VDC (external) |
600 ohms |
1000 ohms |
The transmitter output can be calibrated so that a 4 mA output is produced for any process/rate measured by the meter. The 20 mA output may correspond to any process/rate that is at least 501 counts greater or smaller than the process/rate corresponding to 4 mA. (Ex. 4 mA = 0, 20 mA = 501) If the span between 4 and 20 mA is less than 501 counts, an Error message will appear.
ORDERING INFORMATION
| 115 VAC Model
|
230 VAC Model |
24 VDC Model |
Description |
Option Card* |
| PD692-3-N |
PD692-4-N |
PD692-2-N |
No Options |
|
| PD692-3-14 |
PD692-4-14 |
PD692-2-14 |
2 Relays |
PD174 |
|
PD692-3-15 |
PD692-4-15 |
PD692-2-15 |
4-20 mA Output |
PD175 |
|
PD692-3-16 |
PD692-4-16 |
PD692-2-16 |
2 Relays + 4-20 mA Output |
PD176 |
|
PD692-3-17 |
PD692-4-17 |
PD692-2-17 |
4 Relays |
PD177 |
|
PD692-3-18 |
PD692-4-18 |
PD692-2-18 |
4 Relays + 4-20 mA Output |
PD178 |
* Part numbers for Option Cards when purchased Separately.
