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In addition to the Controller providing both dry-bulb and wet-bulb temperature readings, two
external measurement devices were also used to display the ambient temperature inside the
environmental chamber and also the temperature of the unit under test. The two measurement
devices were:
•
Fluke Model 80TK thermocouple module (S/N 6983158) for the display of the ambient
chamber temperature.
•
Fluke Model 80TK thermocouple module (S/N 6983164) for the display of the temperature
of the unit under test.
The calibration certificates for the Fluke thermocouple modules are also provided in Appendix 1.
The outputs from the thermocouple modules were recorded by a HP 34970A data acquisition unit
at a sampling rate of one sample every five minutes.
2.2
Equipment Placement
The placement of the three Opticom CCTV cameras within the environmental chamber is
shown in Figure 2. An external video monitor is placed outside the chamber in order to view the
output from the cameras.
Thermocouple to monitor the ambient temperature within the chamber.
Figure 2:
Placement of the CCTV cameras within the environmental chamber.
Weir-Jones Engineering Consultants Ltd.
Thermocouple to monitor the temperature of the camera casing.
2
30140-REP-001-0.wp9
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