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ITT Controls

3010 - 2013

Barton Instruments Indicating Transmitter Switch (ITS)

Barton Instruments Series Indicating-Transmitter Switch

Barton Instruments ITS Series DP Indicating-Transmitter Switches provide local indication
(process driven), 2- or 4-switch, and 2-wire 4-20 mA output.

• Measures relatively low DP at high static pressures
• 4-20 mA output (linear with pointer)
• SPDT or DPDT switch operation
• Switches adjusted over entire scale
• Switch backup battery for failsafe
• Output calibration jacks
• Non-contact pointer position detection
• Remote low-battery indication
• Retrofits Barton 6-inch switch case using existing DPU
• Actuated by the 224 DPU

Application

Typical applications include on-off pump control, liquid level, pressure drop across a filter, flow alarms, and absolute pressure measurement, indicating, switching, and
transmitting.

Operation

Switch contacts adjustable over the entire scale. Setpoints are adjustable with a control screw, without calibration equipment. Pointer movement is directly coupled to a precision potentiometer that produces an electrical signal that drives a linear 4-20 mA output and
the switches. Switches can be set for high or low, or both (with two contacts). Jumpers can be set to operate two switches together for DPDT or on/off control between two set-points.