RKI Instruments SP-220 TYPE F - How to Use; 4-3. How to replace the batteries

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4
4. How to Use
4-1. Before using the detector
First-time users and users who have already used the detector must follow the operating precautions.
Ignoring the precautions may damage the unit, resulting in inaccurate gas measurement.
4-2. Preparation for start-up
Before use, read and understand the following precautions. Ignoring these may cause inaccurate gas
detection.
･ The batteries are installed (with sufficient battery level).
･ Check that the taper nozzle and filter are not contaminated.
･ Check that the taper nozzle is not bent or has no hole.
･ Check that the nipple to which the taper nozzle is attached is not loose.
4-3. How to replace the batteries
When the detector is used for the first time, or when the battery level is low, attach two new AA alkaline
batteries according to the following procedures.
1 Check that the power of the
detector is turned off.
Turn off the power if it is turned on.
2
Turn the lock plate
counterclockwise and open
the battery cover.
3
Remove old batteries and
then put new batteries
while observing the correct
polarity.
4
Close the battery cover and
turn the lock plate
clockwise to lock.
Battery cover
Lock plate
Dry batteries
Displaying battery
polarity