Wall, Snap onto DIN rail or panel mounted Pneumatic Averaging / Ratio Relay

Overview

A three-port pneumatic potentiometer can sum and average two input pressures, be a flow restriction, or be an adjustable pressure supply. Replacement devices are available for Johnson, Powers, Robertshaw, Barber-Colman, and older Honeywell devices.

Features

• High efficiency integral filters for all ports.
• High reliability, no internal moving parts.
• Compact size.
• High accuracy.

Product Specifications

Application

Pneumatic Averaging / Ratio Relay

Airflow Usage

Average of two input pressures

Dimensions (in.)

2 7/16 in. wide x 1 5/8 in. deep x 2 7/8 in. high

Dimensions (mm)

62 mm wide x 42 mm deep x 73 mm high

Maximum Safe Operating Pressure (psi)

30 psi, maximum

Maximum Safe Operating Pressure (kPa)

205 kPa, maximum

Mounting

Wall or panel or Snap onto DIN rail

Operating Humidity Range (% RH)

5 to 95% RH

Air connections

Barb fittings 5/32 in. (4 mm) O.D. plastic tubing

Operation

Can sum two input pressures, average two input pressures, be adjustable flow restriction or be an adjustable pressure supply.

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