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DPTx Pressure Transmitter

The DPTx is equipped with industry standard 4-20mA and 0-10V outputs, as well as RS485 MODBUS. With an LCD Display fitted as standard, and a menu driven graphical user interface, the DPTx installation and commissioning process is quick & easy.

The DPTx Pressure Transmitter from Sensing Precision is ideal for the monitoring and management of ventilation systems and is the perfect compliment to the high end Wilson Flowgrids or Eco-Radial Flowgrids. There are two standard models. The DPTx-250, (±250Pa), and the DPTx-500, (±500Pa). All DPTx’s are equipped with industry standard 4-20mA and 0-10V outputs. Each output can be scaled against either pressure, velocity or flowrate, with a configurable range setting for each output.

What sets the DPTx apart from most other transmitters is the LCD Display which is fitted as standard, and the menu driven graphical user interface, which makes installation and commissioning easy and straightforward.

The DPTx range of pressure transmitters also offer a RS485 MODBUS interface, with a limited subset of instructions, that can be utilized to interface the transmitter to a BMS controller.

Transmitter Outputs

BMS Interface

Units of Measure
Pa, “Wg, m/s, fpm, l/s, m³/s, m³/h, cfm

Configurable Ranges
0 to ±50, ±100, ±150 or ±250 Pa (DPTx-250)
0 to ±250, ±500 (DPTx-500)

Features of the DPTx Pressure Transmitter
LCD Display as standard
Graphical user interface
Easy to use Menu-Driven operation

Outputs 0-10V
Measurement Range DPTx-250 ±250 Pa
DPTx-500 ±500 Pa
Accuracy DPTx-250 ±1% ±0.25 Pa
DPTx-500 ±1% ±0.50 Pa
Sensor Damping 0.5s – 7.5s
Power (Max) 1.7W
Vin (User selectable) +24V ac +24V dc
Maximum Current Output Resistance 700Ω
Minimum Voltage Output Resistance 10kΩ
Unit Size 160mm x 113mm x 60mm
Unit Weight 360g
Included Accessories Calibration Certificate
PVC Pressure Tubing
User Guide

– In duct pressure, velocity & flowrate monitoring
– BMS monitoring
– BMS control systems