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then restore.
If the E04 error occurs be sure the load is within the maximum specification and properly
balanced (centered on tray) and/or reduce sample size/speed before restarting the
unit. If the E04 error occurs due to acceptable sample vibration or another vibration
source, the vibration sensing function can be disabled as described above.
bEEPEr PrEfErENCE (muting audible alarm)
To silence beeper operation (except for error codes), with the unit in standby mode,
press and hold the time on/off button and press the standby button. Release the stand-
by button first, and then release the on/off button. To restore normal beeper operation,
remove AC power to unit for ten (10) seconds and then restore.
sINglE PoINT CalIbraTIoN ProCEdUrE
This procedure is used to fine tune and calibrate the Incubating Orbital Shaker at a
specific temperature setting. This process may be repeated for up to three (3) sepa-
rate set-points. If a fourth calibration set-point is entered, the first set-point entered will
be overwritten.
1. Turn unit on.
2. Set desired temperature.
3. Stabilize one (1) hour or more, measuring the temperature with a temperature
probe/thermometer.
4. Press and hold standby button, then press the temperature up arrow once. The unit
will beep two (2) times, confirming calibration mode. The display will now be flash-
ing.
5. Press the temperature up/down arrows until the display matches the temperature
probe/thermometer.
6. Press standby button to exit calibration mode and return to normal heating. This
process may be repeated at the same set-point, multiple times for fine tuning if
desired.
The unit will now use the biased offset for that specific temperature setting and increase
'
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d
or decrease temperature accordingly to bring the temperature to set
temperature. The decimal point of the display will flash to indicate a biased offset is
being used. All other temperature settings will use the standard internal
calibration. This offset will be stored in memory and retained until reset.
To restore unit to factory setting:
Press and hold the standby button while pressing the temperature down arrow once.
The reset will be confirmed with two (2) audible beeps. Press the standby button to exit
calibration mode and return to normal heating.
rs-232 sErIal PorT
The RS-232 serial port provides two-way communications for data logging and unit
control.
T
s
ECHNICal
ErvICE
For more information or technical assistance contact your local VWR representative
or visit www.vwr.com.
Web resources: Visit VWR's website at www.vwr.com for:
• Complete technical service contact information
• Access to VWR's Online Catalogue, and information about accessories and
related products
• Additional product information and special offers
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