Integrated system
Pump, flowmeter and alarm in one enclosure.
Gas Sampling Pump System
A21 Gas Sampler
Draw gas samples from ducts and hard-to-reach points
The A21 from Badger Meter (GasSens / ATi) is a pumping system that draws gas samples from ducts or hard-to-access locations and delivers them to gas sensors such as the D12 in a more convenient place.
Manufactured byBadger Meter
Overview
About A21 Gas Sampler
A diaphragm pump driven by a brushless DC motor, rated for over 10,000 hours, draws samples against up to 10 in. Hg vacuum. A front-panel flowmeter sets the flow, normally around 500 cc/min.
A loss-of-flow detector lights a front-panel lamp and switches a relay for remote indication. AC and 12 V DC versions are available.
Key Features
Why choose A21 Gas Sampler
Loss-of-flow alarm
Standard, with remote relay.
Adjustable flow
Front-panel flowmeter.
AC or 12 V DC
Two power options.
Technical Data
Main specifications
- Power
- 85…265 V AC or 12 V DC, 1 A max
- Flow rate
- 300…1000 cc/min, 500 recommended
- Pump rating
- 10 in. Hg vacuum or 4 psig outlet at 500 cc/min
- Connections
- hose barb for 1/4 in. ID tubing
- Enclosure
- NEMA 4X fibreglass, polycarbonate window
- Operating temperature
- –10…45 °C
Applications
Where A21 Gas Sampler is used
Duct and stack sampling
Wet wells and confined spaces
Remote sampling points
Works With
Related products
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Sampling with cold-plate drying to stop sensor blinding in humid locations.
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B14 Gas Alarm Receivers
DIN-rail modules with LED display, 3 alarm relays and trouble relay; 1 to 12 modules per enclosure.
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