VWR 97043-930 Instruction Manual page 20

Operating Your Cleaner with Ultrasonic & Heating Feature
4. If the unit is turned off when it is in operation and the power is not removed, it will
restore the status and setup of the last operation when it is turned on again.
5. Turn on the power and start heating at ultrasonic standby status (ultrasonic is not
turned on), the machine will activate ultrasonic device for 5 seconds every 2
minutes to balance solution temperature. The function is not available at degassing
standby status.
6. When ultrasonic or degassing finishes, heating stops simultaneously and the machine
turns to standby status. To maintain the temperature, simply turn on the machine
and then turn on HEAT key. The machine will restore the set temperature of the last
operation and go to heating status.
NOTE:
You may require an exact/constant temperature for your application. Please note that
ultrasonics may continue to heat the solution beyond your set temperature, even
though the heater has cycled off and the "Heat On" light is still light. If this happens,
turn the cleaner off and allow the solution to cool down. For a fast cool down, replace
some of the warm solution with cold solution.
The optimal temperature of the heating solution is 55 ~ 60°C. When the temperature
goes up to 65 ~ 80°C, ultrasonic internal resistance would increase by 10~20% and
the power would reduce by 24~34%
Before you start cleaning:
 Don't place parts or containers directly on the bottom of the cleaning tank; use a
support rack, wire or beaker cover to suspend items.
 The water surface should not be lower than "MIN.LEVEL" to prevent damages to
heating device.
 Don't ever use alcohol, gasoline or flammable solution. Doing so could cause a fire
or explosion. Use only water-based solutions.
 Don't ever use mineral acids or bleaches. These could damage the tank.
Step
1. Select your cleaning solution.
2. Allowing for the volume of the parts you will be cleaning and cleaning solution, fill
the tank with warm tap water to the operating level line.
3. Add cleaning solution to the tank water.
5. Plug the cleaner into a grounded outlet.
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WARNING
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