Alpha instruments is an experienced differential pressure transmitter supplier and differential pressure transducer manufacturer/factory. We are very proud to provide pressure transducers and transmitters for HVAC and other fields. We have low to mid-range pressure sensors available. With our unique product design and production set-up, we strive to meet any customer’s needs.

The low cost Model 161 Series are low cost pressure transducer and low range differential pressure transmitter. Each unit features a low cost pressure sensor, a stainless steel back cover and a plastic enclosure, which meets the NEMA 1 requirement. The electrical terminal screws and adjustment holes are concealed beneath a detachable plastic cap. All units are fully protected against short circuiting and incorrect wiring.

The Model 161 Series dpt sensor hvac is available for full scale pressure range from 0 to 0.1″WC till 0 to 100″WC. Both unidirectional and bidirectional pressure ranges are offered. The output of the Model 161 Pressure Transducer is available in two versions: 0 to 5VDC and 0 to 10VDC, where 0VDC is true zero without offset. The output of Model 161 Pressure Transmitters is 4 to 20 mA. All units are temperature compensated. The accuracy can be 0.6%, 0.4% or 0.25% at room temperature.

The patented variable capacitance differential pressure sensor price is constructed by stainless steel and glass, no glue or other organics. That provides excellent performance, corrosion resistance and long-term stability.

Additionally, our unique production setup allows us to accommodate special orders for nonstandard pressure ranges  (e.g. -0.5″WC to +3.5″WC).

Key Features of Alpha 161 pressure sensor:

l Up to 15 PSI Proof Pressure on all Ranges

l Miswiring Full Protection

l Unsymmetrical Bidirectional Pressure Ranges

l True Zero Output for Voltage Unit

Specification of Alpha 161 pressure transmitter:

l Accuracy: ±0.25%, ±0.40% or ±0.60% of span

l Differential Pressure Ranges:

l Unidirectional: 0.10 in.W.C. to 100.00 in.W.C.

l Bidirectional: ±0.10 in.W.C. to ±50.00 in.W.C.

l NEMA 1; ABS enclosure

l Mounting: surface mount

l Output signal: current or voltage

Process Applications of Alpha 161 pressure transducer:

l HVAC and VAV Control

l Clean Room and Isolation Rooms

l Duct Static Pressure Measurement

l Draft Control and Fume Hood Control

l Furnace Air Flow Control

l Power Plant Air Flow Monitor and Control