14
11.
Temperature Calibration
To calibrate the temperature, take a certified calibrated thermometer in a small bottle with
glycerin and place that in the geometrical center of the incubator.
11.1 Low Temperature Point Calibration (0.0)
a) Change the set point to lower temperature value, 37°C for HEATING ONLY UNITS (or 8°C for
REFRIGERATED UNITS,) and let the incubator run for at least 1 hour
– until the temperature is
constant, and let the temperature inside of the chamber uniform.
b) Read the temperature on the thermometer through the glass lid; calculate the difference with
actual displayed temperature. for example, if reading is 35°C, difference would be 35-37= -2°C,
while if reading is 38°C, the difference would be 38-37=1°C
c) Press the "Set/Confirm" button and go with the up arrow
to code “7”. Press the Set/Confirm
again, to enter the Step 1. "Low Temperature Point Correction (0.0)", the display shows the
"Temperature Calibration" with "0.0" and the "Current Calibration Value". Use the up and/or
down key to make a further adjustment on the current correction value by the temperature
difference calculated above, for "-2°C ", decrease by 2, for "1°C ", increase by 1.
d) Keep pressing "Set/Confirm" button, skip the " High Temperature Point Correction (100.0)"
setting, save and exit.
e) The displayed temperature should have changed due to the calibration. Waiting for another
one hour to let the temperature stabilize again at 37°C, and check the thermometer value again,
and calculate the new difference.
f) if necessary, perform the calibration again until the actual display value equals to the calibrated
thermometer value. Thus the Step 1. "Low Temperature Point Correction (0.0)" is completed.
11.2 High Temperature Point Calibration (100.0)
a) If the incubator is to be used for more than one temperature setting, and "High Temperature
Point Calibration (100.0)" needs to be performed as well.
b) Change the set point to a higher temperature point as required, for example 60.0°C and let the
incubator run for at least 1 hour
– until the temperature is constant, and let the temperature
inside of the chamber is uniformed
c) Change the enter the code "7" again and press "SET" skip the "0.0", and enter the "100.0"
page.
d) Repeat the same procedure, like the "Low Temperature Point Calibration", to correct the high
temperature point, until the display value equals to the actual thermometer value. Then the
"Step 2 High Temperature Point Calibration (100.0)" is completed.
Special Attention!
Temperature of each unit has been carefully calibrated in factory
before dispatch.
No further calibration is needed. But if it does, do follow the
calibration process strictly or consult your supplier, as wrong
operation can interfere the temperature accuracy significantly.
7
0.0 Point
Calibration
Exit
100.0 Point
Calibration
Содержание ZWY-111B
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