BASEWEST
Operating & Maintenance Manual
Model TS-420 Test Set
Page 10 of 10 25-60-41
24 Jan 2002
• Do not apply external electrical inputs, except AC charger
• Keep instrument away from all fluids
• Protect from extreme temperatures, weather/rain, extended UV radiation
7.2 The device is designed for handheld use in a shop and field environment but is not
designed to withstand a drop to the ground or to survive excessive compression loads.
7.3 The device is splash resistant, but not waterproof; do not allow the device to sit in standing
fluids or subject to rain. Excessive exposure to UV can affect the LCD meter.
7.4 Surface cleaning only with a slightly damped cloth (water or alcohol) is recommended. DO
NOT use other solvents or cleaners.
8.0 Calibration and Repair
The TS-420 test sets should be calibrated in accordance with the user's quality assurance
requirements. A separate calibration manual is provided; contact BaseWest for
distribution. Unauthorized field repairs are not recommended, and may void warranty. It
is recommended that the devices be returned to BaseWest for repair or servicing.
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