GasSens
Gas Detection System
Section 2 - A14 Receiver Module
O & M Manual
A14-RK, 8/06
2 - 3
Factory Configuration
All receivers are identical except for the gas symbol attached to the green power LED.
Operating range, alarm relay configuration, display intensity, and Auto-Test activation are
selectable using 4 banks of DIP switches located on the configuration circuit board inside the
module.
Receivers are factory configured for the operating range specified on the customer order. If
the system is ordered with the Auto-Test option, this is also factory configured. Factory
configuration of the relays is as follows:
Relay 1 - Configured to trip at the Warning setpoint and set for normal, non-latching operation.
Relay 2 - Configured to trip at the Alarm setpoint and set for normal, latching operation.
Relay 3 - Configured to trip at the Alarm setpoint and set for normal, latching operation.
Alarm Delay - Configured for 2 second delay.
Warning and Alarm setpoints are factory set to standard values depending on the operating
range. Except for oxygen systems, alarms are set to activate above the setpoints. Oxygen
alarms are set to activate below the setpoints.
The LED display will operate in either normal or high intensity mode. Normal mode is the
factory default setting, and is used when receivers are located indoors or in shaded areas. High
intensity mode is selected when receivers will be mounted outdoors. In high intensity mode, the
LED display can be read in direct sunlight.
Configuration Switches
Figure 2-3 indicates the location of each bank of DIP switches on the configuration P.C. board
and Figure 2-4 provides a description of the function of each switch on each bank.
BANK A
BANK B
BANK C
BANK D
Figure 2-3: Configuration Board Switch Location
