Owner manual

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4 MAINTENANCE
4.1 Battery Replacement
When replacing batteries, replace all 4 batteries at the same time.
• Turn power off.
• Remove the carrying case from instrument.
• Press the battery cover slightly and slide it off.
• Remove all 4 batteries and install the new batteries. Take care to use correct polarity and
battery type.
• After replacing batteries, replace cover and carrying case.
4.2 Daily Check/Regular Check
Daily check
• Checking switches, display and body for any physical damage.
• Pump suction check. Is pump running sound normal ?
• Check battery voltage.
• Sensor check: Instrument performs a sensor check duding warm up whenever first turned
on.
4.3 Replacement of Parts
The following parts have a limited life and it is recommended that they be replaced regularly.
Pump : About 1 year (field replaceable)
Sensor : About 5 years (factory replaceable only. Requires special tools and calibration)
4.4 Storage and Treatment After Long Term Storage
Store in a cool dry place and out of direct sunlight.
If storing for a long period, remove batteries before storage.