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Before You Start
Safety Information
3
appears damaged or operates abnormally. Protection may be impaired. When in doubt, have the
instrument serviced.
Always use an isolated RTD or PRT (metal sheath isolated from lead wires).
Make sure the battery door is closed and latched before you operate the reference thermometer.
Do not operate the reference thermometer around explosive gas, vapor, or dust.
For battery operation use only 3 AA batteries, properly installed in the reference thermometer case.
1524 model, thermocouples can only be used on channel 1.
Cautions1.3.2
To avoid possible damage to the reference thermometer or to equipment under test:
Do not apply more than the rated voltage, as marked on the reference thermometer, between the inputs,
or between any input and earth ground (30 V 24 mA max all terminals).
Unless recalibrating the instrument DO NOT change the values of the calibration constants from
the factory set values. The correct setting of these parameters is important to the safety and proper
operation of the instrument.
The instrument and any thermometer probes used with it are sensitive instruments that can be easily
damaged. Always handle these devices with care. DO NOT allow them to be dropped, struck, stressed,
or overheated.
DO NOT operate this instrument in an excessively wet, oily, dusty, or dirty environment.
Use the proper probes, function and range for your measurement.
Ensure probe coefcients are downloaded.