A2G/A2T/A2GT Differential Pressure Gage/Switch/Transmitter
Applications & Features
- A2 series combines the RSA-C4000 pointer differential pressure gauge, switch and transmitter as ONE unit to provide a two-in-one or three-in-one multiple functions to measure, display, control and transfer positive, negative or differential pressure. It can apply to fan, blower, filter, furnace draft, orifice plates, various clean room, bio-safety cabinet, clean bench, industrial cleaner, medical & pharmaceutical & grain & food equipment, etc.
- The mechanical pointer gage uses the technology and design of RSA-C4000 to provide accurate local display with simple, frictionless magnetic moving parts. The function is independent of the switch and transmitter, even if the power is off. The accuracy can be 2% FS
- The integral switch and transmitter use high-precision MEMS sensor and digital technology with accuracy up to ±1%FS which is independent of the mechanical part. The two switches can be flexibly set via touch keys. The transmitter has various outputs selectable.
- Multiple ranges and engineering units selectable
- The design resists shock, vibration and over pressures
- Ultra thin design with the flushed part is only 38.5mm, and the overall thickness is only 52.2mm
- Patented state of art wave shape decorative front cover
- Compatible with RSA-C4000 series installation with mirror scale overlay eliminating parallax reading error
Specifications
Service: Air and non-combustible compatible gases Temperature Limits: -7 to 60°C (20 to 140°F)
Differential Pressure Gage
Accuracy: ±2%FS(±3% on 125Pa, ±4% on 60Pa) @21°C Pressure Limits: -70 to 100 KPa
Zero adjustment: zero screw at the bottom of front cover
Differential Pressure Switch
Output: 2×SPST, for low and high limit control Repeatability: ±1% FS
Dead band: 1% FS (or configurable) Load: 3A-30VDC/250VAC
Power: 16~28VAC, 16~35VDC
High/low limit adjustment: via 3 touch keys
Alarm indication: two LED indicators Zero reset: via 3 touch keys
Differential Pressure Transmitter
Output: 0-10V, 4-20mA (3 lines), RS485 selectable Working Pressure: overload 10xFS, burst 15xFS Accuracy: ±1% FS
Long-term stability: ±0.5%FS/Year Temp. compensation: 0~50°C
Thermal effect: <0.05%FS/°C (zero), <0.08%FS/°C (FS) Response time: <5 s
Power: 16~28VAC/16~35VDC Zero reset: via 3 touch keys
Housing: Die cast aluminum case and bezel, with PC cover
Scale: with mirror scale overlay eliminating parallax reading error
Protection: IP65
Size: 101.5mm (4") diameter dial face, 115.5 mm (4-9/16”) dia. opening for flush mount
Electrical connection: cable on the back
Connections: 1/8" NPT female high and low pressure taps, duplicated, one pair side and one pair back
Mounting method: Flush or surface in vertical position Weight: 500g
Approval: RoHS, CE
Standard accessory: Model A-S10, including two 1/8”NPT pipe plugs, two1/8” NPT to 3/16” rubber tubing adapters and three flush mount adapters with screws
Other Accessories: A-S1/2/9/10/11/12/81, etc., sold separately, see details on Accessories
A2G Models
A2G Models
A2G Models
Ranges
Mechanical part pointer gages’ accuracy: **4%; *3%; Others 2%.
Electronic parts’ (including switch and transmitter) accuracy: 1% FS, and independent of the mechanical part.
Options:
- Brushed 304 SS Bezel: Corrosion resistant bezel, to order add suffix S.
- High Accuracy Calibration(only for mechanical part pointer gage): Calibrated to accuracy 2%/1.5%/1% respectively, with Calibration Certificate. To order add suffix H.
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