BATTERY MAINTENANCE
Install Batteries:
Remove screw located at rear end of unit and pull down
hinged battery door to open as shown. Always insert all four batteries into the
battery compartment in the same direction. Note: polarity mark on the inside of the
battery door for proper battery orientation.
SENSOR MAINTENANCE
Replace Filter:
Unscrew sensor tip as shown to replace filter. Replace filter
whenever it becomes visibly dirty or every 2 to 3 months depending on use.
Replace Sensor:
Remove sensor by pulling out of socket. Install the new sensor
by aligning the Keyway notch in sensor cover with the raised keyway on sensor
socket holder (see figure below).
Note:
Do not force sensor into socket. Misalignment can damage the sensor pins.
IMPORTANT:
The instrument’s software is designed to alert the user if the sensor is dislodged or
defective. If the sensor is not fully inserted into the six-pin socket, or if it is defective, the instrument will not come
out of the “Warm Up” mode for proper operation when the power button is turned on. Additionally, if the instrument
becomes unstable during its operation, it is an indication that the sensor may be defective or dislodged.
Unscrew tip to
replace filter
Filter
Push straight on (do not
twist) to install sensor
Pull straight out (do not
twist) to remove sensor
Keyway alignment
Polarity mark
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