SC-04
Chapter 3: Measuring Mode • 23
4. If the over range condition continues or if you are not able to successfully calibrate the
unit, you may need to replace the sensor.
5. If the over range condition continues after you replace the sensor, contact RKI
Instruments, Inc. for further instructions.
Responding to Battery Alarms
WARNING:
The SC-04 is not operational as a gas monitoring device during a dead
battery alarm. Take the SC-04 to a non-hazardous area and replace the
batteries as described in “Replacing the Batteries (Alkaline or Ni-MH)” on
page 64.
The SC-04 is fully functional during a low battery warning. However, only a couple of days of
operating time remain. The amount of time depends on LCD backlight use and alarm
frequency. Replace the batteries as described on pg.64 as soon as possible.
NOTE:
Alarms and the LCD backlight consume battery power and reduce the amount of
operating time remaining.
Responding to Sensor Failure Alarms
1. Calibrate the sensor as described on pg.41.
2. If the sensor failure continues, replace the sensor as described on pg.71.
3. If the sensor failure condition continues after replacing the sensor, contact RKI
Instruments, Inc. for further instructions.
Responding to Clock Failure Alarms
A clock failure alarm occurs if the unit’s internal clock malfunctions.
1. Press and release POWER MODE to continue into Measuring Mode.
CAUTION:
There is no datalogging function if you operate the instrument after a clock
failure.
2. Attempt to set the date using the
DATE
item in User Mode (see pg.61).
3. If the date cannot be set correctly, contact RKI Instruments, Inc. as soon as possible.
Responding to System Failure Alarms
1. If a system failure occurs, the system failure screen displays an error code as shown
below.
FAIL
050
CLOCK
FAIL
031
SYSTEM