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5020A
Users Manual
5-26
Sensor Alarm
The SENSOR ALARM function allows the setting of the alarm parameters for each
channel.
To set alarm parameters, a channel number and measurement type (T or H) must first be
selected using B C and ENTER buttons.
avu036.jpg
Figure 5-35. Sensor Alarm
The PARAM parameter is selectable between 1/T, 1/H, 2/T, 2/H. The 1 and 2 refer to the
channel selected, T is temperature and H is humidity.
The A D buttons are used to select the menu option. The B C buttons are used to change
the parameter setting. Press the E button to save the new setting. Press the F button
to cancel any changes and exit to the menu.
Once an option is selected, the parameters LOWER, L ENAB, UPPER, U ENAB, RATE,
R ENAB, and SENSOR for the given channel (1 or 2) and measurement type (T or H) are
displayed. The LOWER parameter is the lower limit alarm. The L ENAB parameter is
used to turn the lower limit alarm ON or OFF. The UPPER parameter is the upper limit
alarm. The U ENAB parameter is used to turn the upper limit alarm ON or OFF. The
RATE parameter is the upper limit of the absolute value of the rate of change expressed
in degrees/hour or %RH/hour. The R ENAB parameter is used to turn the rate alarm ON
or OFF. The SENSOR parameter is used to turn the sensor fault alarm ON or OFF.
The A D buttons are used to select the menu option. The B C buttons are used to change
the parameter setting. Press the E button to save the new setting. Press the F button
to cancel any changes and exit to the menu.
System Alarm
The SYSTEM ALARM function allows the battery or power alarms to be turned ON or
OFF.
When the BATTERY alarm is turned ON, an alarm occurs when the battery charge is
low.
When the POWER alarm is ON and a battery is installed, an alarm occurs when the
power is disconnected. This alarm will continue to sound every 20 seconds until power is
restored or the battery is discharged.