This document is an operation manual for a gas detector. It covers the product's usage methods, function descriptions, maintenance and maintenance.
This manual explains how to operate the GfG GMA101 gas detector, including turning it on, setting alarm thresholds, checking relays, and performing maintenance. It covers detection modes, peak value memory, and safety procedures for LEL monitoring. The device monitors combustible gases and toxic substances using connected transmitters and provides analog output signals for further evaluation.
The GMA101 is designed for fixed gas monitoring systems and includes features like adjustable alarm thresholds, fault detection, and service mode for calibration. It is tested to meet standards for explosive gas detection and is suitable for industrial applications requiring continuous gas monitoring.
| Detection Range | 0 .. 100 %LEL |
|---|---|
| Alarm Thresholds | 3 variably adjustable |
| Display | 3-digit concentration display |
| Output Signal | 4-20 mA analog output |
| Relay Functions | NC / NO contact, open-circuit / closed circuit |
The GMA101 needs a few minutes for warm-up, including a self-test (approx. 10 seconds) and transmitter warm-up.
The GMA101 activates alarms and stores an overrange signal, which remains active until the concentration drops below the full scale value.
Press the QUIT MENU key to acknowledge and reset the alarm.
The GMA101 stores either the maximum or minimum value depending on the gas type, and can be reset to the current measurement value.