Novus NP785 Differential Pressure Transmitter | 0-10V / 4-20mA Output

Ideal for HVAC, clean-room and flow measurement applications, the NP785 is an ultra low differential pressure transmitter for measuring very small over-pressure, under-pressure and differential pressure in neutral, non-corrosive gaseous media — DIN rail mounted, with a configurable analogue output (0-10V or 4-20mA), integrated RS485 Modbus, alarm output, USB configuration, a diagnostic LED, and a choice of pressure ranges. It provides a pressure-proportional linear signal output with a configurable measuring range set via USB using the configuration software. NP785 can operate bi-directionally, providing the ability to measure differential pressure ranges from vacuum to positive pressure. It is housed in a DIN rail mountable ABS/PC enclosure and its nickel plated brass fittings accept pneumatic hoses with 4 or 6mm internal diameter. The analogue output can be set to either 0-10V or 4-20mA while having RS485 with Modbus RTU communication protocol. Designed for HVAC and industrial environments, the NP785 ensures temperature compensation for long-term stability and complies with EMC standards, providing robustness and reliability for a wide range of applications. SigNow is the latest free software from Novus for calibration and monitoring of sensor products. ✅ 3 Year Manufacturer Warranty — backed by our UK-based technical support Novus NP785 Datasheet Download Novus NP785 Manual Download Technical Details Mounting: DIN rail. Enclosure: ABS/PC. Fittings: nickel plated brass, 4 or 6mm ID hose Output: configurable 0-10V or 4-20mA. Communication: RS485 Modbus RTU. Configuration: USB (SigNow software) Diagnostics: diagnostic LED, alarm output Available pressure ranges: ±50 Pa, ±100 Pa, ±5 mbar, ±20 mbar, ±68 mbar, ±400 mbar, ±1000 mbar (contact us to order ranges not listed above) Frequently Asked Questions Can this measure vacuum as well as positive pressure?Yes — it operates bi-directionally, so it can measure differential pressure ranges from vacuum through to positive pressure. Which pressure range should I choose?Pick the range that best matches your expected differential — 7 ranges are available from ±50 Pa up to ±1000 mbar; contact us if you need a range not listed. Do I need special software to configure it?SigNow is Novus's free calibration and monitoring software, used via USB to set the measuring range and check diagnostics. Industry Applications HVAC Systems — monitors filter differential pressure and airflow across ducting. Clean Rooms — precise low-pressure differential monitoring for room pressurisation control. Flow Measurement — differential pressure signal for orifice or venturi flow calculations.

Novus NP785 Differential Pressure Transmitter | 0-10V / 4-20mA Output

Ideal for HVAC, clean-room and flow measurement applications, the NP785 is an ultra low differential pressure transmitter for measuring very small over-pressure, under-pressure and differential pressure in neutral, non-corrosive gaseous media — DIN rail mounted, with a configurable analogue output (0-10V or 4-20mA), integrated RS485 Modbus, alarm output, USB configuration, a diagnostic LED, and a choice of pressure ranges. It provides a pressure-proportional linear signal output with a configurable measuring range set via USB using the configuration software.

NP785 can operate bi-directionally, providing the ability to measure differential pressure ranges from vacuum to positive pressure. It is houséd in a DIN rail mountable ABS/PC enclosure and its nickel plated brass fittings accept pneumatic hoses with 4 or 6mm internal diameter.

The analogue output can be set to either 0-10V or 4-20mA while having RS485 with Modbus RTU communication protocol. Designed for HVAC and industrial environments, the NP785 ensures temperature compensation for long-term stability and complies with EMC standards, providing robustness and reliability for a wide range of applications.

SigNow is the latest free software from Novus for calibration and monitoring of sensor products.

✅ 3 Year Manufacturer Warranty — backed by our UK-based technical support

Novus NP785 Datasheet Download

Novus NP785 Manual Download

Technical Details

Mounting: DIN rail. Enclosure: ABS/PC. Fittings: nickel plated brass, 4 or 6mm ID hose

Output: configurable 0-10V or 4-20mA. Communication: RS485 Modbus RTU. Configuration: USB (SigNow software)

Diagnostics: diagnostic LED, alarm output

Available pressure ranges: ±50 Pa, ±100 Pa, ±5 mbar, ±20 mbar, ±68 mbar, ±400 mbar, ±1000 mbar (contact us to order ranges not listed above)

Frequently Asked Questions

Can this measure vacuum as well as positive pressure?
Yes — it operates bi-directionally, so it can measure differential pressure ranges from vacuum through to positive pressure.

Which pressure range should I choose?
Pick the range that best matches your expected differential — 7 ranges are available from ±50 Pa up to ±1000 mbar; contact us if you need a range not listed.

Do I need special software to configure it?
SigNow is Novus's free calibration and monitoring software, uséd via USB to set the measuring range and check diagnostics.

Industry Applications

HVAC Systems — monitors filter differential pressure and airflow across ducting.
Clean Rooms — precise low-pressure differential monitoring for room pressurisation control.
Flow Measurement — differential pressure signal for orifice or venturi flow calculations.