6
Measure Surface (non-metals)
Switch Setting
Asbestos
0.95
Asphalt
0.95
Basalt
0.7
Carbon clean
0.8-0.9
Graphite
0.7-0.8
Carborundum
0.9
Ceramic
0.95
Clay
0.95
Concrete
0.95
Cloth
0.95
Plate glass
0.85
Gravel
0.95
Gypsum
0.8-0.95
Ice
0.98
Limestone
0.98
Paper (any colour)
0.95
Opaque plastic
0.95
Soil
0.9-0.98
Water
0.93
Wood (natural)
0.9-0.95
Trigger Lock
•
Press SET and when lock icon displays select
▼
to set on or off.
•
When the trigger is locked, the Thermometer will provide continuous measurement.
There is no need to pull the trigger.
•
When the trigger is unlocked, the user must pull the trigger for measurement.
When the trigger is released, the Thermometer will hold the measurement result
automatically. HOLD appears in the display until the trigger is pulled again.
Temperature units
•
Press SET to enter centigrade or fahrenheit mode then select
▼
to set selection.
OPERATION EXAMPLES
Testing Contactors
•
Press SET to select emissivity. Press
▲
/
▼
to select relatively low emissivity for
bright contacts, or 0.7 mid level for darkened contacts.
•
Press MODE to select MAX.
•
Measure line and load side of one pole without releasing trigger.
•
A temperature difference between the line and load sides of a pole indicate
increased resistance of one point and a contactor may be failing.
Testing Enclosed Relays
•
Press SET and then press
▲
/
▼
to set emissivity to relatively low for uninsulated
connectors or relatively high for plastic encased relays or for bakelite enclosed
relays or insulated connectors.
•
Press MODE to select MAX. Start to scan.
•
Measure the relay casing, looking for hot spots.
