RKI Instruments SC-01 - Manual (Page 39)

SC-01 Operator’s Manual Maintenance • 34
5. Reinstall the battery cover.
NOTE: If the unit has been without batteries or if the old batteries have
been dead for an extended period, allow 5 minutes after the new
batteries have been installed for the sensor to stabilize.
Replacing the Sensor
WARNING: Replace the sensor in a non-hazardous environment.
Since the SC-01 sensor is capable of saving calibration information in its
memory, replacement sensors are shipped from the factory calibrated. So
when the replacement sensor is installed, it will not be necessary to
calibrate the sensor unless it has been stored so long that the installation
date is past the calibration due date defined by the SC-01. If the SC-01 has
the CAL. LIMIT item in Setup Mode turned off so that the SC-01 will not
alert you if calibration is due, then RKI Instruments, Inc. recommends that
you calibrate the sensor if it is installed more than 3 months after the ship
date from the factory.
1. Verify that the SC-01 is off.
2. Grasp the rubber guard on the sensor retainer firmly and turn it
counterclockwise about 1/8 turn. A yellow line on the rubber guard will
indicate the proper amount of rotation by lining up with a yellow line on
the instrument body that indicates “UNLOCK”.
3. Pull the sensor retainer away from the SC-01 and it will slide out of the
SC-01.
4. If the sensor retainer slides out with the sensor, pull the old sensor out
of the bottom of the sensor retainer.
If the sensor retainer slides out without the sensor, pull the old sensor
out of the SC-01.
5. Insert the connector (plug) end of the replacement sensor into the
sensor opening in the SC-01 case and gently push it in until it bottoms
out with the sensor plug on the end of the sensor contacting the sensor
socket at the bottom of the sensor opening. Do not try to push the
sensor any farther into the sensor opening once it bottoms out.