®
DG-1
DIGITAL GAS DETECTORS
dg1_en 05/09
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).
NC
TMP
COM 12V
NC
TMP
BUZ ON/OFF
1
2
3
4
7
5
6
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
