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General| Brand | ADC |
|---|---|
| Model | MGA3000 series |
| Category | Measuring Instruments |
| Language | English |
Describes the MGA3000 Series Instrument, its design for bench or rack mounting, and its gas concentration measurement capabilities.
Explains the infrared absorption principle for measuring gas concentrations, including IRGA benches and oxygen sensors.
Covers setting the instrument voltage (110V, 220V, 240V) and connecting the power cable correctly.
Explains how analogue outputs are arranged and how to set voltage or current modes using internal jumper links.
Covers gas circuit details, external connections, sample gas requirements, and warnings for toxic or hazardous gases.
Lists essential checks before powering on, including voltage settings, gas connections, venting, and grounding.
Explains the necessity of zero and span adjustments for accurate gas readings, and their frequency.
Explains how to set or check alarm conditions for gas readings, flow errors, and contact modes (n/o, n/c).
Covers manual and automatic zero adjustments, ensuring correct gas pressure and flow for accurate zeroing.
Explains how to perform span adjustment using a known concentration of gas and setting the correct gas value.
Details two methods for autocal: saturating the transmitter or exposing it to a known moisture level.
Guides on pre-conditioning the transmitter and adjusting the auto cal potentiometer for accurate calibration.
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