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PD661
EXPLOSION PROOF
3½ DIGIT
LOOP-POWERED METER

FEATURES

bullet 4-20 mA Input
bullet 3½ Digit Display
bullet Easy Calibration and Installation
bullet Loop-Powered Backlighting Option
bullet Wide Operating Temp Range: -40 to 80°C

SPECIFICATIONS

INPUT
4-20 mA @ 24 VDC Maximum

DISPLAY
Sharp, 0.5. high LCD, 3½ digits; 1999, user selectable decimal point

CALIBRATION
2 Step; non-interacting zero and span

CALIBRATION RANGE
4 mA input: -500 to +500; 20 mA input: between 20 to 2000 above 4 mA display

MAXIMUM VOLTAGE DROP
1.5 VDC @ 20 mA; 3.5 VDC @ 20 mA with backlighting option

ACCURACY
±0.1% of span, ±1 count

CONNECTIONS
Removable screw terminal block

OPERATING TEMPERATURE RANGE
-40 to 80°C

ENCLOSURE
Cast aluminum, approved by FM and CSA; NEMA 4, 7 and 9; Class I, Groups B, C, and D; Class II, Groups E, F, and G; Class III.  Two 1/2" NPT holes provided.

LOOP-POWERED BACKLIGHTING OPTION
Factory installed only. Powered directly off the 4-20 mA loop, no batteries required. The display brightness will increase as the input signal current increases.

WARRANTY
1 year parts and labor

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

ORDERING INFORMATION

Model Description
PD661-N Explosion Proof Meter
PD661-B Explosion Proof Meter with Loop-Powered Backlighting