ETS-Lindgren HI-1801 Microwave Oven Survey Meter User Manual
Page 16
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Operation
3.
The normal operating temperature range is between 60º and 90º F (15º and
32º C). If used outside this range, an additional error will be introduced. This
error can be approximated as -0.1% per Fahrenheit degree. The negative
temperature coefficient means that the instrument reads high at lower
temperatures and low at higher temperatures.
4.
The parameters which affect the accuracy of this instrument are listed along
with the error contribution of each in the following table.
Parameter
Error (dB)
Calibration
Precision--±0.09
Accuracy--±0.13
Nonlinearity and AM
response
±0.17
Near Field vs. Far Field
±0.29
Receiving Pattern
-0.11
Temperature Response
±0.06
Frequency Response*
±0.04
Polarization*
±0.21
RFI*
±0.04
Drift*
±0.04
Total
+0.96/-0.81
*Errors combined in RMS manner
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