Digital Thermometer
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7
Maintenance
Refer to Manual 204M, Operating Instructions for
the 1341 Plain Jacket Calorimeter for calorimeter
maintenance information.
Refer to Manual 205M, Operating Instructions for
the 1108 Oxygen Combustion Vessel for bomb
maintenance information.
ATTENTION: Electrostatic Discharge (ESD)
hazards. Observe precautions for handling
electrostatic sensitive devices
There is no routine maintenance recommended for
the 6775 Digital Thermometer.
Battery
The thermometer is battery powered using high
capacity lithium batteries (2 x 1936E), providing ap-
proximately 200 hours of operation.
If the thermometer display fails to operate, it most
likely indicates the batteries are low and need to be
replaced. To replace the batteries, twist the battery
cover counterclockwise to expose the batteries.
Replace the old batteries with two new batteries.
Do NOT replace the batteries with ordinary AA style
batteries. Ordinary AA batteries will not provide suf-
fi cient voltage to power the thermometer. Slide the
new batteries into the battery holder observing the
correct polarity. Replace the battery cover.
Troubleshooting
If the thermometer does not function properly for
any reason, please replace the batteries with new
ones. See the Battery section, above. Low battery
power can occasionally cause a number of apparent
operational diffi culties. Replacing the batteries will
solve most diffi culties.
Service
For technical assistance or service contact:
Parr Instrument Company
211 53rd Street
Moline, IL 61265
Telephone: (309) 762-7716
Toll Free: 1-800-872-7720
Fax: (309) 762-9453
E-mail: parr@parrinst.com
www.parrinst.com
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