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DG-1
DIGITAL GAS DETECTORS
The DG-1 microprocessor-based digital gas detectors are characterized by reliability and low
current consumption. Due to a digital temperature compensation feature they can operate
within a wide temperature range. Gas concentration above the threshold level triggers visual
and audible alarm signals. The detectors are intended to used as part of a security system.
The DG-1 series of digital gas detectors includes the following products:
DG-1 CO – carbon monoxide detector;
DG-1 LPG – propane-butane gas detector;
DG-1 ME – natural gas (methane) detector;
DG-1 TCM – soporific gas detector (e.g. chloroform vapors).
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Fig. 1. The electronics board of DG-1 CO, DG-1 LPG, DG-1 ME detectors. The electronics
board of DG-1 TCM detector differs in size and shape of the gas sensor installed.
Explanations to Fig. 1:
1 – terminals:
NC
– alarm relay (NC)
TMP – tamper contact
®
NC
NC
TMP
BUZ ON/OFF
TMP
COM 12V
dg1_en 05/09
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Summary of Contents for Satec DG-1 Series
- Page 1 Gas concentration above the threshold level triggers visual and audible alarm signals. The detectors are intended to used as part of a security system. The DG-1 series of digital gas detectors includes the following products: DG-1 CO – carbon monoxide detector;...
- Page 2 DG-1 SATEL COM – common ground – power supply input 2 – LED indicator. Indicates by blinking activation, trouble and alarm of the detector. Depending on the detector type, the following LED colors are used: - red – DG-1 CO (sensor type TGS2442) - green –...
- Page 3 SATEL DG-1 3. Installation and commissioning The DG-1 digital gas detectors are designed for indoor installation. Considering specific character of the gases to be detected, the DG-1 TCM and DG-1 LPG detectors should be mounted in low position, just above the floor, the DG-1 ME detector in high position, just under the ceiling, and DG-1 CO detector at a height of about 1.5 meter.
- Page 4 DG-1 SATEL Fig. 3. Alignment of the matchmarks when closing the detector housing. 4. Technical data Nominal supply voltage (±15%) ................... 12 V DC Current consumption, standby: DG-1 CO ............. 9-20 mA DG-1 LPG ............30-50 mA DG-1 ME ............30-50 mA DG-1 TCM ............