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COMPACT DIFFERENTIAL PRESSURE TRANSMITTER "DWYER" MODEL 668-9
[668-9]
$212.50

 

 

 

Series 668

 

Compact Differential Pressure Transmitter

 

Ranges from 0 to 0.25 in w.c., Overpressure Protection to 10 psig, +/-1% Accuracy

 

 

 

Our low cost Series 668 Differential Pressure Transmitter is capable of measuring low pressures

 

with a +/-1% accuracy – ideally suited for proper building pressurization and air flow control. Transmitters

 

can withstand up to 10 psig overpressure with no damage to the unit. Variable capacitance sensor design

 

provides excellent sensitivity and long-term stability. Compact, lightweight design makes installation simple

 

and easy. Units also feature reverse-polarity protection.

 

 

 

 

Bi-Directional

 

Model

Range

Model

Range

Model

Range

 

668-1

0 to 0.25 in w.c.

668-6

0 to 10 in w.c.

668-10

0 to +/-0.1 in w.c.

 

668-2

0 to 0.5 in w.c.

668-7

0 to 25 in w.c.

668-11

0 to +/-0.25 in w.c.

 

668-3

0 to 1 in w.c.

668-8

0 to 50 in w.c.

668-14

0 to +/-2.5 in w.c.

 

668-4

0 to 2.5 in w.c.

668-9

0 to 100 in w.c.

668-17

0 to +/-25 in w.c.

 

668-5

0 to 5.0 in w.c.

 

 

 

 

 

 

 

SPECIFICATIONS

 

Service:

Air and non-conductive gases.

 

Accuracy:

+/-1% of full-scale (RSS) (includes non-linearity, hysteresis, and non-repeatability).

 

Temperature Limits:

Operating: 0 to 150šF (-18 to 65šC);

Storage: -40 to 185šF (-40 to 85šC).

 

Pressure Limits:

10 psig (0.69 bar).

 

Compensated Temperature Range:

 

0 to 150šF (-18 to 65šC).

Thermal Effects:

0.033% FS/šF (0.018% FS/šC).

 

Supply Voltage:

12-30 VDC.

 

Output:

4 to 20 mA, 2-wire

 

Zero and Span Adjust:

+/-1 mA, non-interactive.

 

Response Time:

< 60 ms.

 

Loop Resistance:

0-800 Ω.

 

Electrical Connection:

Terminal strip.

 

Pressure Connection:

3/16” OD fitting for ¼” ID tubing.

 

Housing:

Fire retardant glass filled polyester.

 

Weight:

3 oz (85 g).

 

Agency Approvals:

CE.

 

 

 

 

This product was added to our catalog on Wednesday 29 October, 2014.
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