Heat/Cool Setting Procedure To Adjust Upper Ambient Control Limit; Additional Ishd23Cdg Notes; Maintenance - OHAUS ISHD16HDG Manuel D'instructions

Incubating Shaker
With the unit at the heat/cool setting as described below, and in cool mode ("cool" on time display), a
temperature setting is displayed in the temperature window. The default temperature setting of the
ISHD23CDG is 28ºC. This is the factory set upper ambient control limit. This setting can be adjusted
between 20ºC and 32ºC by the user.
• Any unit set point above the upper limit setting will heat only.
• Any unit set point below 20ºC will cool only.
• Any set point between 20ºC and the selected upper limit setting, up to 32ºC, the chiller and heater
will both control chamber temperature.

2.3.1 Heat/Cool Setting Procedure to Adjust Upper Ambient Control Limit

1 Put unit in standby mode.
2 Press and hold the temperature down, speed down and time down arrows simultaneously, now press
the standby button. Release all standby button and then release all 3 of the down arrows
simultaneously.
3 Time display will now read "cool" and the temperature display will read 28°C. If the time display reads
"heat" press the time up/down arrow until the word "cool" appears in the display.
4 Now you can set the upper ambient control limit. Using the temperature up/down arrows adjust this
temperature to be 3°C above the measured ambient temperature.
5 Once the desired temperature is selected, press the standby button to return to normal operation.
6 This procedure does not require recalibrating the unit.

2.3.2 Additional ISHD23CDG Notes:

• ISHD23CDG units have a toggle switch on the left side. This switch must be in the "on" position
(depress "I") for the unit to function properly.
• For ISHD23CDG units, make sure the chiller's hose is positioned to drain freely (into a sink when
possible).
• Do not allow the end of the chiller hose to become submerged.
• If chiller hose is positioned in a drain container, the container should have a volume of at least 2 gallons
if the unit will be unattended for 48 hours.
• There are two strips of adhesive on the bottom of the rubber mat. To prevent the mat from sliding on the
tray during operation, remove the plastic film to expose the adhesive and firmly press the mat down
onto the tray to secure.

3 MAINTENANCE

1. This device may not cause harmful interference.
2. This device must accept any interference received, including interference that may cause undesired
operation.
The Incubating Orbital Shaker is built for long, trouble-free, dependable service. No lubrication or other
technical user maintenance is required. However at least every three (3) months you should:
• Unplug the unit.
• Remove any accumulated dirt from the base and tray.
• Check all accessible items to make sure they are properly tightened.
The unit should be given the care normally required for any electrical appliance. Avoid wetting or
unnecessary exposure to fumes. Spills should be removed promptly.
Do not use a cleaning agent or solvent on the front panel or lid, which is abrasive or harmful to plastics, nor
one which is flammable. Always ensure the power is disconnected from the unit prior to any cleaning. If the
unit ever requires service, contact your Ohaus representative.
EN-11