LW Scientific 20L Incubator - Manual (Page 4)

*
Release or Press/Hold
Displays variance
(0.6 o )
*
Press/Hold
Press once
Displays maximum
*
Press/Hold
Press once more
Displays minimum
Thermocouple burnout
Check sensor/wiring
Non-volatile memory error
De-power briefly
Replace unit if it persists
(Press together to
clear alarm condition)
Alarm condition: Temp exceeded maximum
operating temp (62 C). Heater shutdown
until manually reset. Typically indicates
relay or temperature control failure.
Replace relay or temp control if persists.
PRESS
To clean interior and exterior surfaces, use a damp cloth with or without an all-purpose cleaner. The acrylic door
should only be cleaned using a lint-free cloth, with or without water. Paper towels can mar the surface of the
acrylic door. Use of any commercial cleansers on the acrylic door will cause crazing and cracking of the surface of
the acrylic over time. Periodically, check the accuracy of the control's temperature display against a known
accurate or calibrated device. This should be done with an empty chamber after the set temperature becomes
steady (typically after 45 to 60 minutes). Calibrate the control in the control's functions menu, level 3 (see page 3).
This feature monitors the stability of the control during for any given length process. It will record and display: 1.
The total variation or spread between high and low, 2. The absolute or maximum high and 3. The absolute or
minimum low.
To start the tracking feature navigate to "CheK" prompt in menu level 3. Hold star key then up arrow key to select
ON. Return to temp display or control will auto-return in 60 seconds. The control will track the temperature
variation until "CheK" is turned off. Recorded readings are retained until next "CheK" ON.
You can view readings at any time during or after tracking feature has been turned off. But de-powering the unit
will reset "CheK" to OFF and "rEAd" to zero. To view readings navigate to "rEAd" prompt in menu level 3. Then:
TIP: To avoid erroneous tracking data from run-up temperatures or door openings, start the Tracking feature after
articles have been placed and temperature steadies at set point.
PAGE 4
Control prompts will only display when a fault or alarm condition exists.
Temperature Tracking Feature
Control Self Diagnostics
Maintenance / Control Calibration
Tech Support
Warranty
If you have any questions or need technical assistance, please contact LW Scientific.
Example for 140 Series
Please read and complete the warranty form online at LWScientific.com/warranty_form. The warranty form
documents your purchase. Failure to fill out the warranty form may void any warranty claims on the unit.
MKT-7.5.3-L-134 | Rev 0