Teledyne 1220 - Multipoint flammable gas and vapor detection system - Manual (Page 33)

Multi-Channel Combustible Monitor Operation 4
4-5 Teledyne Analytical Instruments
ENTER Switch - Use this membrane switch in
conjunction with the SELECT Switch to select a
user-configurable mode and then the option high-
lighted.
RUN Switch - Pressing this membrane switch places
the Channel Module in the analysis mode, i.e., the
unit is operational.
ENTER
RUN
When in one of the four
user-configurable modes, all
arrows allow you to navigate
through the options. In
addition, the Up/Down
arrow keys can be used to set
the values shown on the
display for ZERO and SPAN
and also increase/decrease
the value of the HIGH and
CAUTION alarms.
CAUTION
HIGH ALARM
CAUTION
HIGH ALARM
FAIL
FAIL
POWER
Blue LED indicates a Channel Module or Sensor
failure. Flashes when bypassed.
Red LED indicates High alarm condition. Flashes
when bypassed.
Yellow LED indicates Caution alarm condition.
Flashes when bypassed.
Green LED remains on during operation, turns off
in STANDBY Mode.