Teledyne 4020 - Hydrocarbon analyzer - Manual (Page 67)

Total Hydrocarbon Analyzer Operation
Teledyne Analytical Instruments 51
concentration rises above the setpoint. Setting an alarm as
LOW triggers the alarm when the concentration falls below
the setpoint.
 Are the alarms to be set as:
 Both high (high and high-high) alarms
 One high and one low alarm
 Both low (low and low-low) alarms.
 Are the alarm contacts to be fail safe or non-fail safe?
 Are either of the alarms to be defeated?
The defeat alarm mode is incorporated into the alarm circuit so that
maintenance can be performed under conditions which would normally
activate the alarms.
Note: If you are using password protection, you will need to enter
your password to access the alarm functions. Follow the
instructions in section 4.6.7.1 to enter your password.
Once you have clearance to proceed, you can enter the
ALARM function.
To configure or set the alarms:
Activate or Defeat Alarms
<▲▼> Scroll to the ALARM function using the UP/DOWN
keys.
<Enter> Activate the ALARM function by pressing .
This brings you to the next alarm screen which allows
you to activate or defeat alarm 1.