Battery Replacement - VWR 61161-283 Manual De Instrucciones

Unit Setup Example
1. Turn the unit on.
2. Select the desired unit of measure.
3. Place the thermometer into the supplied base.
4. Place the thermometer and base inside the refrigerator/freezer.
At this point, allow sufficient time for the bottle thermometer to reach equilibrium with the true current
temperature inside the refrigerator/freezer.
5. Once the thermometer has reached equilibrium, clear the minimum and maximum temperature memory. (See
the "Minimum/Maximum Memory" section.)
The memory will provide a record of the single lowest and highest temperature achieved. When the
temperatures are recorded into the manual log, the memory will allow the user to see if the temperature inside
the refrigerator/freezer has gone outside of the acceptable range.
MONITORING PROCEDURE EXAMPLE
Keep a notebook or spreadsheet as a manual log.
1. At the same time every day, record the following into the manual log:
• Current Date and Time
• Current Temperature Reading
• Minimum Temperature Reading (MIN)
• Maximum Temperature Reading (MAX)
2. Once the above items have been manually recorded, clear the minimum and maximum temperature
memory. (See the "Minimum/Maximum Memory" section.)
By clearing the memory each day, the minimum and maximum temperature memory will provide a record of
the minimum and maximum temperature that has been achieved inside the refrigerator/freezer over the past
24 hour monitoring period. The memory will also allow the user to see if the temperature inside the refrigerator
went outside of the acceptable range.
ALL OPERATIONAL DIFFICULTIES
If this thermometer does not function properly for any reason, replace the battery with a new high quality
battery (see the "Battery Replacement" section). Low battery power can occasionally cause any number of
"apparent" operational difficulties. Replacing the battery with a new fresh battery will solve most difficulties.

BATTERY REPLACEMENT

Erratic readings, a faint display, no display, or [===] appearing on the display are all indications that the
battery must be replaced. To replace the battery, remove the three battery cover screws located on the back
of the unit. Remove the battery cover. Replace the exhausted battery with a new 1.5-volt, silver oxide, #357
size battery. Make certain the positive (+) side is visible. Replace the battery cover and battery cover screws.
Do not overtighten the screws as this may damage the unit.
NOTE: When replacing the battery cover, ensure the screws are tightened securely to maintain the unit's
water-proof seal.
VWR Collection Manual ver 3, rel 5 30.10.2013