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.

Measured valuesdifferential pressure, volume flow
Mediumair or other non-flammable/non-aggressive gases
Output voltage2x 0..10 V or 0..5 V (adjustable via jumper; live-zero configuration via app or uConfig), Dual: 2x 0..10 V (differential pressure) or 4x 0..10 V (differential pressure and volume flow), min. load 10 kΩ
Output current2x 4..20 mA, max. load 500 Ω
Output switch contactRelay: 2x floating contact NO for 24 V ~ or 24 V = / 3 A, optional
Network technologyRS485 BACnet (MS/TP), LON FT (free topology), RS485 Modbus
Power supply15..35 V = or 19..29 V ~ SELV
Power consumptionmax. 2,5 W (24 V =) | 4,3 VA (24 V ~)
Measuring range pressuretype 250: 0..+25 | 0..+50 | 0..+100 | 0..+250 | -25..+25 | -50..+50 | -100..+100 | -150..+150 Pa, type 2500: -100..+100 | 0..+100 | 0..+250 | 0..+500 | 0..+1000 | 0..+1500 | 0..+2000 | 0..+2500 Pa, type 7000: 0..+1000 | 0..+1500 | 0..+2000 | 0..+2500 | 0..+3000 | 0..+4000 | 0..+5000 | 0..+7000 Pa, selectable at the device, Volume flow 0..750.000 m³/h, optionally configurable via Thermokon USEapp
Accuracy pressuretype 250: ±1 Pa at range <250 Pa, type 2500: ±5 Pa at range <500 Pa, ±10 Pa at range >500 Pa, type 7000: ±10 Pa at range <2000 Pa, ±25 Pa at range >2000 Pa, deviation from calibration reference device (calibrator)
Max. working overpressure40 kPa
CalibrationAZ: Automatic zero point calibration (optional)
Sensorpiezo measuring element
InputsRS485 BACnet (MS/TP)/RS485 Modbus: 2x input for NTC10k or floating contact (2IN), optional
DisplayLCD 29x35 mm with RGB backlight, optional, measured values: pressure in Pa or inchWC, volume flow in m3/h oder cfm, configurable via app or uConfig
Enclosureenclosure USE-L, PC, pure white
Protection (IP)IP65 according to EN 60529
Cable entryFlextherm M20 for wire Ø=4,5..9 mm, Relay/BUS: M25 with fourfold cable entry for wire with max. Ø=7 mm, removable
Electrical connectionremovable plug-in terminal, max. 2,5 mm², BUS terminal: removable plug-in terminal, max. 1,5 mm²
Connection mechanicalpressure connection male Ø=5,0 mm / Ø=6,3 mm, connection tube: PVC, soft
Ambient condition-10..+50 °C, max. 85% rH short term condensation
Mountingscrew mounted onto flat surface, prepared for mounting on DIN rail TS35 (35x7,5 mm) according to EN 60715
Delivery content2 mounting screws, 2 plastic duct flanges, 2 m PVC connection tube, Dual: 2x2 each, incl. mounting base enclosure USE-L pure white

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Thermokon Sensortechnik GmbH
Platanenweg 1
35756 Mittenaar
Tel.: +49 2778 6960-0

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