The type 698 series of differentialpressure modules is especially suitable for monitoring air flow and differential pressure in air conditioning systems.The versions with and without limit switches are supplied in casings of different sizes. The modules are available with or without a circuit for square root extraction.

One of three standadized analog output signals can be factory-set or selected by the user.The built-in differential pressure transmitter, with its unique ceramic fulcrum lever technology (see crosssectional drawing) is a device in the Huba type 696/697 series.

Medium
Air and neutral gases
Power supply
17 … 33 VDC
24 VAC
115 VAC
230 VAC
Output (Selectable by customer)
0 … 10 V
0 … 20 mA
4 … 20 mA