Instructions
930XC-20C • 930XC-20M • 930XC-30F • 930XC-30P
Tempo Communications Inc. 1390 Aspen Way • Vista, CA 92081 USA • 800-642-2155
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Section 5. Calibration and Maintenance
Electric shock hazard:
• Do not expose the unit to extremes in temperature or high humidity. Refer to “Specications.”
• Turn the unit off, disconnect from power, and make sure the laser source is off before
cleaning.
Failure to observe these precautions may result in injury and may damage the unit.
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930XC-20C • 930XC-20M • 930XC-30F • 930XC-30P Instruction Manual
Section 5. Calibration and Maintenance
Electric shock hazard:
• Do not expose the unit to extremes in temperature or high humidity. Refer to
“Specications.”
• Turn the unit o, disconnect from power, and make sure the laser source is o before
cleaning.
Failure to observe these precautions may result in injury and may damage the unit.
Calibration Requirements
Calibration of the instrument is recommended every two years. Contact Tempo for proper
calibration services.
Maintenance and Replacement of Batteries
The 930XC has two batteries: a NiMH battery to power the instrument and a realtime clock (R
TC)
battery for data retention.
Note: Recharge the battery prior to use if the OTDR has not been used for one month.
To replace the NiMH battery (Figure 5-1):
1. Remove the battery compartment cover.
2. Remove the battery and disconnect the battery connector.
3. Replace the battery with the Tempo supplied replacement battery.
To replace the RTC battery (Figure 5-1):
1. Remove the NiMH battery as above.
2. Remove the RTC coin cell battery.
3. Replace using a CR1220. Insert the replacement coin cell with the positive side facing up.
Figure 5-1. Replacing Battery