Martel Electronics LC-110/H - Manual (Page 6)

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• Inspect the test leads for damaged insulation or exposed metal.
Check test leads continuity. Replace damaged test leads before
you use the calibrator.
• When using the probes, keep your fingers away from the probe
contacts. Keep your fingers behind the finger guards on the
probes.
• Connect the common test lead before you connect the live test
lead. When you disconnect test leads, disconnect the live test lead
first.
• Do not use the calibrator if it operates abnormally. Protection may
be impaired. When in doubt, have the calibrator serviced.
• Do not operate the calibrator around explosive gas, vapor, or dust.
• Disconnect test leads before changing to another measure or
source function.
• When servicing the calibrator, use only specified replacement parts.
• To avoid false readings, which could lead to possible electric shock
or personal injury, replace the battery as soon as the battery
indicator appears.
• To avoid a violent release of pressure in a pressurized system, shut
off the valve and slowly bleed off the pressure before you attach
the pressure module to the pressure line.
Caution
To avoid possible damage to calibrator or to equipment under test:
• Use the proper jacks, function, and range for your measurement or
sourcing application.