Excellence In High Accuracy Low Pressure Sensing
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Excellence In High Accuracy Low Pressure Sensing - + - + + - + -- + - + www.alphainstruments.com + - + - HVAC/R BuildingAutomation Critical Environment Isolation Rooms

Alpha Instruments Inc. was founded in 2005, in Massachusetts, US. We specialized in the development and manufacture of low-pressure transducers, which were widely used in HVAC, Critical Environments, Medical industry, Semiconductor Equipment, etc. With our own R&D Center, we do basic research, also develop our transducers with unique technologies. The designs of our products are based on decades of experience applied to new innovative ideas. Compared to other capacitive transducers, our extensively engineered, patented products provide better long term stability, more sensitivity, and...

The Model 161 Series are low range differential pressure transducers and transmitters. Each unit features a stainless steel 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 are 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...

Electrical Data (Voltage) Circuit 3-Wire (+EXC, -EXC, OUTPUT) , Protected against incorrect wiring Output Impedance ^5.0 OHMS * Zero output: factory set at ±35mV(0-5VDC),±70mV(0-10VDC) Span output: factory set at ±35mV(0-5VDC),±70mV(0-10VDC) Calibrate with a 50K OHM load. Operable with a load greater than 5K OHM for 0-5VDC output, greater than10K OHM for 0-10VDC output. Electrical Data (Current) Circuit Excitation Output** Bidirectional Output at Zero External Load 2-Wire (+EXC, -EXC), Protected against incorrect wiring 12-32VDC (see diagram 2 for maximum loop resistance) 4-20mA 12mA as...

The Model 162 Series are low range differential pressure transducers and transmitters. Each unit features a stainless steel 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 162 Series are 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...

Electrical Data (Voltage) Circuit 3-Wire (+EXC, -EXC, OUTPUT),Protected against incorrect wiring Output Impedance ^5.0 OHMS * Zero output:factory set at ±35mV(0-5VDC), ±70mV(0-10VDC) Span output: factory set at ±35mV(0-5VDC), ±70mV(0-10VDC) Calibrate with a 50K OHM load. Operable with a load greater than 5K OHM for 0-5VDC output, greater than 10K OHM for 0-10VDC output. Electrical Data (Current) Circuit Excitation Output** Bidirectional Output at Zero External Load 2-Wire(+EXC, -EXC), Protected against incorrect wiring 12-32VDC(see diagram 2 for maximum loop resistance) 4-20mA 12mA as...

The Model 164 Series are low range differential pressure transducers and transmitters. Each unit features a stainless steel pressure sensor, a stainless steel enclosure and a plastic cover, 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 164 Series are 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 164...

Electrical Data (Voltage) Circuit 3-Wire (+EXC, -EXC, OUTPUT), Protected against incorrect wiring Output Impedance ^5.0 OHMS * Zero output: factory set at ±25mV(0-5VDC), ±50mV(0-10VDC) Span output: factory set at ±25mV(0-5VDC), ±50mV(0-10VDC) Calibrate with a 50K OHM load. Operable with a load greater than 5K OHM for 0-5VDC output, greater than 10K OHM for 0-10VDC output. Electrical Data (Current) Circuit 2-Wire(+EXC, -EXC), Protected against incorrect wiring Excitation 12-32VDC (see diagram 2 for maximum loop resistance) Bidirectional Output at Zero 12mA as standard External Load 0-1000...

The Model 165 Series are low range differential pressure transducers and transmitters. Each unit features a stainless steel pressure sensor, a stainless steel enclosure and a plastic cover, 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 165 Series are 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 165...

Electrical Data (Voltage) Circuit 3-Wire (+EXC, -EXC, OUTPUT), Protected against incorrect wiring Output Impedance ^5.0 OHMS * Zero output: factory set at ±25mV(0-5VDC), ±50mV(0-10VDC) Span output: factory set at ±25mV(0-5VDC), ±50mV(0-10VDC) Calibrate with a 50K OHM load. Operable with a load greater than 5K OHM for 0-5VDC output, greater than 10K OHM for 0-10VDC output. Electrical Data (Current) Circuit Excitation Output** Bidirectional Output at Zero External Load 2-Wire(+EXC, -EXC), Protected against incorrect wiring 12-32VDC (see diagram 2 for maximum loop resistance) 4-20mA 12mA as...

alpha" instruments PaUxil No 2Q0S2Q02W46.7 200620004461.6 OttXK Foreign 5 Ponding Pats MODEL 166P1000DA6N A OUTPUT: 4 TO 20mA POWER: Ifi TO 321 RANGE: 0 TO I.OkPa ACCURACY: 0.6% SERIAL NO: 0317003 The Model 166 Series are low range differential pressure transducers and transmitters. It features a flame retardant plastic enclosure with a metal backing. The unique design makes it can be used at outdoor environment and with easy access to zero and sensitivity adjustments. The Model 166 Series are available for full scale pressure range from 0 to 0.1"WC till 0 to 100"WC. Both unidirectional and...