Indoor Air Quality Differential Pressure-Fow Transmitter. Optional with IQnexus LoRaWAN® ModBus Transceiver. The Thermokon Transmitters and Sensors are available with different interfaces like BACnet MS/TP, 4-20 mA or ModBus RTU. Contact us for the different versions.
Differential pressure transmitter for measuring and monitoring overpressure, underpressure, differential pressure and flow volume of air and other non-aggressive gases in fan and filter systems in duct applications. 8 adjustable pressure and flow volume ranges permit use in HVAC applications of clean rooms, process measurement and controls systems. The optional features, such as relay outputs for 2-point controllers or 2-stage 2-point controllers, an LCD with traffic light indication allow for a wide range of applications. Depending on the model, the DPA+ can be individually configured via Thermokon USEapp. A hinged cover and tool-free wiring as well as removable cable entries ensure a quick and easy installation. 'Dual' versions with 2 independent sensors for up to 2x differential pressures or 2x flow volume in a single enclosure are available. The mounting base (included in the delivery content) can be used to mount the DPA+ on a flat surface or on DIN rail TS35 (35x7,5 mm) in accordance with EN 60715.
The DPA250+ is communicating via ModBus RTU. The connected IQnexus LoRa® ModBus Transceiver is reading the ModBus Registers as a master and packs the register data into LoRaWAN® payloads.
Output: RS485 Modbus & 2x 0..10 V = (differential pressure and volume flow)
Measuring range differential pressure: 0..+25 | 0..+50 | 0..+100 | 0..+250 | -25..+25 | -50..+50 | -100..+100 | -150..+150 Pa (default: 0..+250 Pa), selectable at the device
Measuring range volume flow: 0..+750.000 m³/h, configurable via Thermokon USEapp
Measuring units: pressure in Pa or inchWC, volume flow in m³/h or cfm
Accuracy pressure: ±1 Pa at range <250 Pa
Power supply: 15..35 V = or 19..29 V ~
Display: LCD 29x35 mm with RGB backlight, configurable via Thermokon USEapp
Impact- and shock-resistant enclosure USE-L with quick-release cover (PC, pure white, IP65)
Removable cable entry (M25, exchangeable) and removable plug-in terminal (max 2,5 mm²), Safe terminal protected against accidental connection
Screw mounted onto flat surface, prepared for mounting on DIN rail TS35 (35x7,5 mm)
incl. mounting base, mounting screws, 2 m PVC connection tube and connection set pressure