Differential pressure transmitter SPD21

differential pressure transmitter
differential pressure transmitter
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Pressure type
Output signal
Other characteristics
for HVAC systems, stainless steel, compact, economical, sanitary, for liquids and gases, for marine applications, for railway applications, for boilers, IP65, for refrigeration circuits
Process temperature

Max.: 80 °C (176 °F)

Min.: -10 °C (14 °F)

Pressure range

Max.: 40 bar (580.15 psi)

Min.: 0 bar (0 psi)


The SPD21 monitors the differential pressure range of a wide variety of both liquids and gases. This economical unit features a 304SS body, dual male threaded connection ports, a 316SS diaphragm with either silicone or olive oil filled sensor and either M12 or DIN43650 electrical connection. It is available in pressure ranges from 0…500milibar to 0…600bar Optional Accessories: TR202 Relay Digital readout + 2X active relays/ 1X F.S. Relay + passive 4…20mA out Applicacion: Level and Differential Measurement in Liquids and Gas Operating Voltage: 24Vdc / 5Vdc Consumption: Max. 22mA Output Signal: 4...20mA (2 wires) or 0.5...4.5V Accuracy: Max error of 0.5% Sensor Type: 316 S.S Piezoresistive Sensor / Olive oil for Sanitary application Range: 0,35 to 25 Bar Static Pressure: Max. 40 Bar Electrical Connection: DIN 43650 and M12 Connector Process Connection: M20*1/5, G1/2 - Flanged or Sanitry Body Material: 304 S.S Operating Temperature / Compensated: -10 to +80ºC / 0...60°C Zero & Span Coeficient: 1.5% E.S (0...60°C) Over Pressure: 2 x E.S Class Protection: IP 65 (IEC 60529) General applications Compressors and Pumps Sanitary process and control Refrigeration, HVAC and boilers Industrial hydraulic machinery Transportation, marine, rail equipment


*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.