Bacharach 19-7037, 19-7044 manual Long-Term Storage, Maintenance, Low Battery Indications

Low Battery Indications

When the battery voltage becomes low, the “LO BAT” indicator appears. Although the instrument will continue to operate and give percent O2 read-

ings under these conditions, the batteries should be replaced as soon as possible.

When the battery voltage becomes too low for the instrument to operate, a “-1” is displayed on the LCD. No O2 readings are provided under these conditions.

4.7Long-Term Storage

When storing the Oxor II for extended periods of time, set its POWER switch to OFF and remove the batteries. After long term storage follow Section 4.2 (Adjusting the Instrument) to make sure that the unit is ready for use.

5 MAINTENANCE

The Oxor II needs to be calibrated at regular intervals to ascertain that it still meets its accuracy specification. A regular calibration schedule should be established. Detailed calibration, maintenance procedures and parts lists are provided in the Service Manual (19-9133).

As a quick check of the instrument’s operation, perform a response check by exposing the instrument to a gas source which is depleted of Oxygen (e.g., cigarette smoke, a breath held for 15 seconds or more, smoke from a recently snuffed -out match, or bottled nitrogen). If the instrument doesn’t show a drop in the percentage of oxygen from that source, or if the reading is obviously in error, DO NOT use the instrument until it has been serviced by an authorized Bacharach Service Center.

NOTE: DO NOT use this simple response check as a sub- stitute for ensuring the instrument is properly calibrated.

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