Specifications

GDC-150 Operation Manual
5209-9000 Rev 0 1
1. OVERVIEW
1.1. General Description
GDC-150 transmitters are rugged, user-friendly, configurable analog transmitter gas
detectors for use in non-hazardous (non-explosion rated) environments for
commercial HVAC and light industrial use. It can be configured for either
electrochemical toxic gas sensors, solid-state sensors, or catalytic sensors.
A standard transmitter provides a bi-color LED indicating light for power, fault
condition, and alarm (option with one dry contact relay). An optional LED digital
display is available as well as other enclosure options.
The electrochemical sensors utilized in this device are accurate enough to measure to
Occupational Health and Safety hazardous levels for toxic gases and oxygen levels.
NOTE: The GDC-150 analog transmitters operate by diffusion. If a
sample draw system is desired, consult a Bacharach authorized
distributor or the factory for details.
1.2. Enclosures
Figure 1-1. Standard (NEMA 1X) Enclosures