Fluke 7102 - Fluid Drain; Temperature Controller; Controller Operation

7102
User’s Guide
20
Table 4. Nominal Stirrer Motor Settings with Different Liquids
Fluid Drain
To drain the fluid from the Product, tightly screw the transport/pour access lid onto the top of the bath
and pour the liquid into an appropriate container.
Temperature Controller
A Fluke Calibration unique hybrid digital/analog temperature controller controls the bath temperature.
The controller offers the tight control stability of an analog temperature controller as well as the
flexibility and programmability of a digital controller.
A platinum resistance sensor in the control probe monitors the bath temperature. The signal is
electronically compared with the programmable reference signal, amplified, and then fed to a pulse-
width modulator circuit which controls the amount of power applied to the bath heater.
Operate the bath within the temperature range given in Specifications. For protection against solid-
state relay failure or other circuit failure, a bi-metallic cut-out automatically turns off the heater any time
the bath temperature exceeds the maximum temperature.
Use the controller to set the bath temperature with high resolution, adjust the proportional band,
monitor the heater output power, and program the controller configuration and calibration parameters.
Controller Operation
This section discusses how to operate the bath temperature controller with the front control panel. Use
the front panel to monitor the well temperature, set the temperature set-point in degrees C or F, monitor
the heater output power, adjust the controller proportional band, and program the calibration
parameters, operating parameters, and serial interface configuration. Operation of the functions and
parameters are shown in the flowchart in Figure 6. Copy this chart for reference.
Liquid Stir Motor Setting Temperature
Distilled Water 15
5 °C to 90 °C
(41 °F to 194 °F)
Ethylene Glycol 15
−5 °C to 90 °C
(25 °F to 194 °F)
200.05 Oil 15
−5 °C to 125 °C
( −23 °F to 258 °F)
200.10 Oil 15
25 °C to 125 °C
(77 °F to 258 °F)