Brookfield Bath, Model TC-101 Digital KU-1 Viscometer - Manual (Page 8)

TO SET THE HIGH LIMIT TEMPERATURE:
1. Press and hold the SET/ENTER button until the display reads "UNIT".
2. Turn the INCREASE/DECREASE knob until the display reads "HI-L".
3. Press the SET/ENTER button and enter the desired value using the INCREASE/DECREASE knob.
4. Press SET/ENTER or the setting will be accepted after a few seconds.
2.9 Setting the Safety Thermostat
The Over Temperature Protection (OTP) thermostat safety feature prevents your unit from burnout in
case of primary controller failure or a low liquid condition by switching off power to the heater. This
feature is independent of the high limit setting and has a range of 60°C to 220°C The high limit as
indicated in Section 2.3 (above) must still be set.
For temperatures less than 60°C:
1. Turn the OTP knob located at the rear of the controller fully counterclockwise (minimum setting)
Note: 240V models have a recessed slot that is to be set with a standard screwdriver.
For temperatures over 60°C:
1. Turn the adjustable thermostat, OTP knob, (on controller's back) fully clockwise (maximum+)
until it stops.
2. Stabilize the bath at the maximum desired control temperature.
3. Turn the OTP knob slowly counter-clockwise until you hear a click. The unit stops and the display
will read "E-oP" (Over temperature).
4. Turn the OTP knob clockwise slightly above the position where the unit tripped then reset the OTP
breaker by pressing the red OTP reset button (below the knob). OTP is now set to trip a few
degrees over the stabilized fluid temperature.
2.10 Operation of Refrigerated Models
For operation at temperatures below 40°C, refrigeration is normally required. To start the refrigeration
system, press the cooling switch to the ON position. The refrigeration automatically shuts down if the
bath fluid is above 80°C, even if the refrigeration switch is on.
When refrigeration is switched off, it should NOT be restarted for approximately 10 minutes to allow the internal
pressures to equalize. System damage could result if you do not observe this waiting period.
2.11 Operation of Heat-Only Models
For operation of non-refrigerated models, the included cooling coil may be used to achieve bath
temperatures within 15°C above the ambient room temperature. The cooling coil also permits the bath
temperature to be lowered more rapidly, after operation at an elevated temperature. The cooling coil
connections are located between the circulating pump’s inlet and outlet connections at the rear of the
bath’s controller. To use the cooling coil, slide the
1 /
4
inch ID latex tubing from the water source over one
of the coil’s connections and route another length of tubing from the other coil connection to the drain.
2.12 Selection of Celsius or Fahrenheit Readout
To change the readout to display in °F or °C:
1. Press and hold the SET/ENTER button until the display reads "UNIT".
2. Press SET/ENTER again then turn the INCREASE/DECREASE knob and select °C or °F.
3. Press SET/ENTER or the setting is accepted after a few seconds.
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