NEW BRUNSWICK SCIENTIFIC innova 3100, Manual To Operations

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Innova 3100 Š M1231-0050 User’s Guide
The level control maintains a water level slightly above the platform. To adjust the
water level:
1. Make sure the power is ON.
2. Remove the rear baffle ( see Figure 8 above ) by lifting it straight up and away.
The level control is exposed.
3. Note the position of the water level and decide whether the desired level is higher
or lower.
4. To raise the water level, note the position of the flexible tube graduations (these
gradations and markings are for reference only).
5. Lift the tube up and push the excess tubing through the rear wall of the tank. As
you raise the control, the solenoid will open and water will fill the bath until the
new water level is established.
6. To lower the water level, feed the flexible tube back into the vertical stainless steel
tube. The drain valve should then be opened. Close the drain valve when you
hear the solenoid valve operating.
7. When the water level set is satisfactory, replace the rear baffle.
4.11 Low Water Level Alarm
To prevent heating when there is no water in the bath, the unit is provided with a
safety circuit to ensure that the heater will not activate if no water is present. The *
(Low Water Level) indicator will flash and the audible alarm will sound.
The * indicator will also light if the water level is below the minimum setting.
When the water level alarms are activated, check to be sure that:
•
the “Water In” hose is properly in place
•
the supply valve is open
•
the drain is closed.
When the condition is corrected, the alarms deactivate in approximately 10 seconds.
4.12 Draining the Bath
To drain the water bath, turn off the external water supply and open the unit’s drain
valve
(on the rear panel--see Figure 2 or 6) , after verifying that the drain hose is
properly connected to the unit and empties into an open drain.