PolyScience DuraChill 58 Series, Руководство пользователя

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Temperature Calibration
At times, there may be a minor temperature difference between the Chiller’s displayed temperature and the actual
temperature as determined by a certified temperature measurement device. There may also be situations where
you want the displayed temperature to match a particular value to have standardization between different
instruments. These adjustments can be performed using the Chiller’s internal and/or external temperature
calibration offset functions.
Internal Calibration Offset (
C
1)
IMPORTANT: To prevent the operator from accidentally changing the calibration offset, a special keystoke
sequence is required to access this function.
This menu item allows you to adjust the Chiller’s internal temperature reading to match that of a traceable
standard. It allows you to offset the displayed temperature value by as much as ±2.9°C.
NOTE: Calibration offset values are always set and displayed in °C.
1. Press and hold the Units/Menu Button until HL appears on the display.
2. Press and release the Units/Menu Button until rP appears on the display.
3. Press and hold the Units/Menu Button.
4. While holding the Units/Menu Button, press and release the Select/Set Knob.
5. When CL1 appears on the Temperature Readout, release the Units/Menu Button. The current calibration
offset value will appear on the Temperature Readout and alternate with the fluid temperature reading
(enabling you to simultaneously adjust the offset and see the effect on the temperature).
6. Rotate the Select/Set Knob until the desired calibration offset is displayed. Press the Select/Set Knob or
simply allow the display to time out to accept the displayed value.
C
1
0.0
External Calibration Offset (
C
2)
IMPORTANT: To prevent the operator from accidentally changing the calibration offset, a special keystroke
sequence is required to access this function.
This menu item allows you to adjust the Chiller’s external temperature reading to match that of a traceable
standard. It allows you to offset the displayed temperature value by as much as ±2.9°C. It appears only if the
external temperature probe is installed.
NOTE: Calibration offset values are always set and displayed in °C.
1. Press and hold the Units/Menu Button until HL appears on the display.
2. Press and release the Units/Menu Button until
C
1 appears on the display.
3. Press and hold the Units/Menu Button.
4. While holding the Units/Menu Button, press and release the Select/Set Knob.
5. When CL2 appears on the Temperature Readout, release the Units/Menu Button. The current calibration
offset value will appear on the Temperature Readout and alternate with the fluid temperature reading
(enabling you to simultaneously adjust the offset and see the effect on the temperature).