PD690
4½ DIGIT
UNIVERSAL PROCESS METER

FEATURES
bullet Microprocessor Power with Analog Simplicity
bullet Easy Single Button Scaling (SBS) with Lockout Capability
bullet Stand Alone Scaling
bullet 11 Point Linearization
bullet Square Root Extraction
bullet 4 Visual Alarm Points with LED Status Indication
bullet Type 4X, NEMA 4X Front Panel
bullet Isolated 24 V Transmitter Power Supply
bullet 4-20 mA, 1-5 V, 0-5 V or or 0-10 V Field Selectable Inputs
bullet Green Display Available
bullet 2 or 4 Alarm Relays
bullet Isolated 4-20 mA Transmitter Output
bullet 2 or 4 Relays and 4-20 mA Output Available Together

DESCRIPTION

The PD690 meter is a high performance, easy to use, industrial-grade microprocessor-based digital process meter. It accepts all the standard process signals: 4-20 mA, 1-5V, 0-5V and 0-10V and displays these signals in engineering units on a 41/2 digit display. The display includes an extra zero, which may be used to handle numbers up to 199,990. The meter also provides 24 VDC to power the transmitter. Options include 2 or 4 relays and an Isolated 4-20 mA Transmitter Output.

SPECIFICATIONS

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

INPUTS
Field selectable: 4-20 mA, 0-5 V, 1-5 V, 0-10 V

DISPLAY
Bright, Large, 0.56" (14.2mm) high efficiency red or green LEDs. 4½ digits + extra zero; +19999(0), (0) may be switched on to display 1999,990.

CALIBRATION
May be calibrated using internal calibration or by applying an external calibration signal. To scale inputs such as 0-5 V, 1-5 V or 0-10 V without applying a signal it is necessary to first complete and Initial Calibration.

CALIBRATION RANGE
4 mA (1 V) input may be set to display anywhere in range of meter.
20 mA (5 V) may be set anywhere above or below 4 mA input.

CALIBRATION RANGE
4 mA (1V) input may be set to display anywhere in range of meter. 20 mA (5V) may be set anywhere above or below 4 mA input.

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

LOCKOUT
Jumper 3 at rear of instrument restricts modification of calibration values.

LOOP POWER
(AC powered units only) Isolated 24 VDC ±5% at 20 mA regulated. Max loop resistance of 1200 ohms. Available for either signal input or 4-20 ma output option, but not both.

HOLD READING
Connect terminals HLD and COM

ACCURACY
± 0.05% of calibrated span ± one count

INPUT IMPEDANCE
Voltage ranges, greater than 300 kilohms; Current range, 100 ohms.

POWER
AC power: 115 VAC ± 10%, 50/60 Hz, 10VA
230 VAC ± 10%, 50/60 Hz, 10VA
DC power: 18-36 VDC, 6 watts max.

ISOLATION
AC power: 1500 VAC; DC power: 500 VDC

ENVIRONMENTAL
Operational Ambient Temperature Range: 0 to 60ºC
Storage temperature range: -40 to + 85ºC
Relative humidity: 0 to 90% non-condensing

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

CONNECTIONS
Removable screw terminal block

ALARM POINTS
4, any combination of high or low alarms

ALARM STATUS INDICATION
Front Panel LED

ALARM DEADBAND
0-100%, user selectable

UL FILE NUMBER
E193723; 508 Industrial Control Equipment

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.

RELAYS

RATING
 2 or 4 relays; 2 Amp SPDT (from 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 loads.

RESET User Select
1. Automatically plus manually (via user supplied switch or front panel ACK
button).
2. Automatically when the input passes the reset point.

FAIL-SAFE 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, (NC contact is connected to common). 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 OUTPUT SIGNAL

CALIBRATION RANGE
 Anywhere in range of meter, 501 count minimum span.

OUTPUT LOOP RESISTANCE
Power Supply Min. Loop Resistance Max. Loop Resistance
24 VDC 10 ohms 600 ohms
35 VDC (external) 600 ohms 1000 ohms

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

ACCURACY
± 0.1% F.S., ± .004 rnA

EXTERNAL LOOP POWER SUPPLY
35 V Max.

ORDERING INFORMATION

115 VAC Model 230 VAC Model Description Option Card*
PD690-3-N PD690-4-N No Options  
PD690-3-14 PD690-4-14 2 Relays PD174
PD690-3-15 PD690-4-15 4-20 mA Output PD175
PD690-3-16 PD690-4-16 2 Relays + 4-20 mA Output PD176
PD690-3-17 PD690-4-17 4 Relays PD177
PD690-3-18 PD690-4-18 4 Relays + 4-20 mA Output PD178

Add (-G) to part number to call out meters with green display.
Example: PD690-3G-14

* Part numbers for Option Cards when purchased Separately.