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DPT-Dual-MOD Differential pressure transmitter with two pressure sensors and Modbus

DPT-Dual-MOD Differential pressure transmitter with two pressure sensors and Modbus
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DPT-Dual-MOD Differential pressure transmitter with two pressure sensors and Modbus - 1

USER-FRIENDLY MEASURING DEVICES differential pressure transmitters dpt-dual-mod series Differential pressure transmitter with two pressure sensors for air and an Input terminal for two analog inputs for external signal conversion into Modbus DPT-Dual-MOD combines two differential pressure transmitters into one device. It offers a possibility to measure pressure from two different points. It has a Modbus interface and an Input terminal. When using the Input terminal, temperature transmitters can be replaced with temperature sensors. As a result you will save in costs of the devices and in the installation costs. The AHU model that includes an air flow transmitter has been designed especially for ventilation units. similar products applications DPT-Dual-MOD series devices are commonly used in HVAC/R systems for: • fan, blower and filter monitoring • pressure and flow monitoring • valve and damper control • pressure monitoring in cleanrooms • DPT-2W series differential pressure transmitters with 4-20 mA 2-wire configuration • DPT-R8 series 8-range differential pressure transmitters • DPI series electronic differential pressure switches • PS series mechanical differential pressure switches • DPT-FLOW series airflow transmitters DPT-Dual-MOD-AHU can also be used for: • air flow monitoring across centrifugal fans and blowers • in-duct air flow monitoring • VAV applications Copyright HK Instruments 2017 www.hkinstruments.fi Datasheet Version 6.0 2017

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DPT-Dual-MOD Differential pressure transmitter with two pressure sensors and Modbus - 2

Performance Accuracy (from applied pressure): Model 2500: Pressure < 125 Pa = 1 % + ±2 Pa Pressure > 125 Pa = 1 % + ±1 Pa Model 7000: Pressure < 125 Pa = 1.5 % + ±2 Pa Pressure > 125 Pa = 1.5 % + ±1 Pa (Including: general accuracy, temperature drift, linearity, hysteresis, long term stability and repetition error) Response time: 1...20 s selectable via menu Overpressure: Proof pressure: 25 kPa Burst pressure: 30 kPa Communication Protocol: MODBUS over Serial Line Transmission Mode: RTU Interface: RS485 Byte format (11 bits) in RTU mode: Coding System: 8-bit binary Bits per Byte: 1 start...

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