PN 10795T 35
F. Set up the power meter in the Watts Mode and the 10W range for 25 mm calorimeters or the 3W
range for 50 mm calorimeters.
G. Apply V
h
volts, stated in the calibration data you received with the calorimeter, to the substitution
heater.
H. If needed, adjust the calibration trim pot, R4 on the calorimeter circuit board, until W
h
Watts, from
the calibration data, is displayed by the power meter.
Calibration of Large Aperture Calorimeters Using Electric Substitution Heating
Electrical substitution heating is a standard feature of large aperture calorimeters.
Figure 5. 100 & 200 mm Calorimeter Connector Panel
Calibration with an Interface Module and H410 Power Meter
A. Connect a DVM to the white jacks of the calorimeter. Refer to Figure 5.
B. Measure the resistance of the substitution heater making sure to subtract the resistance of the patch
cables from the total resistance measurement.
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