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Applications & Features

• Combined with differential pressure gauge, switch and transmitter as one unit, apply for positive, negative or differential pressure measurement, display and control. It can measure system pressure of fan, blower, filter, furnace draft, orifice plate and various clean room, biological safety cabinet, clean bench, ducts collection, medical or pharmaceutical machine, etc.

• The gauge uses the technology and design of the A2000, with simple and frictionless movement, provides precise measurement and pointer display with an accuracy of up to 2%FS. The indication function is independent with the electrical transmitter and can work even when the power supply is absence

• The differential pressure switch has two sets of switches which indicate high and low limit. The mechanical settings can be set by knob on the cover, and indicated by two red pointers. The electrical settings can be done by RS485

• The electrical switches and transmitter use MEMS sensor and digital technology with accuracy up to ±1% FS

• Multiple ranges, outputs, alarm, engineering units selectable, the standard installation is panel mount

Specifications

Service: Air and non-combustible compatible gases

Temperature Limits: -16~60°C 

Power: 16~28VAC/16~35VDC or 85~265VAC, see Models

Gauge

Accuracy: ±2%FS(125Pa：±3%, 60Pa：±4%) @20°~26C

Pressure Limits: -70~100 kPa

Zero adjustment: screw at the bottom of front cover

Switch

Output: 2×SPST, 3A×30VDC/250VAC, with 2 red LEDs  and 1 buzzer

Accuracy: ±1%FS

Dead Zone: 1%FS (configurable by RS485)

Alarm setting: knob sets pointers limits position, RS485 sets electrical parameters

Transmitter

Accuracy: ±1.0%FS

Stability: ±0.5%FS/Year

Output: 0~10V, 4~20mA (2 wires), RS485 selectable

Output Load: ≤500Ω (current), ≥2kΩ (voltage)

Temp. Compensation: 0~50°C

Thermal effect: <0.05%FS/°C(Zero), <0.08%FS/°C (FS)

Response time: <5 s

Zero reset: easy to reset by reset button on back

Electrical connection: screw terminals on back

Work Pressure: overload 10xFS(≤1kPa)/8xFS(≥1kPa),burst 20xFS(≤1kPa)/10xFS(≥1kPa)

Connections: 1/8" NPT female +/- ports, one pair on side

Housing materials: 

Front: Die cast aluminum case and bezel, PC cover

Back: Fire retardant ABS+PC(UL94V-0)

Protection: front housing IP67,back housing IP30(except for terminals)

Weight: 0.81kg

Approval: CE

Models

Measuring Ranges

Accuracy of gauge: ** 4%; * 3%; Others 2%.

Accuracy of the electrical switches and transmitter: 1% FS.