10 | Operation Guidance
Digital Drybath
Instruction
: There is limitation for temperature and time
setting. The setting temperature range is: 15 ~ 135°C; the
time range is: 0 ~ 99 h 59 min and continuous mode "- -:- -".
Start and Stop Instrument
START: Press “START/STOP” to start operation, the indicator
light “HEAT” will be flashing. When the instrument achieves
the setting temperature, the “HEAT” light will stop flashing.
This indicates that the unit will enter hold temperature status.
The digital display window will display the real-time
temperature and the timing function by pressing “SHIFT”
button. When the holding time equals to the setting time, the
instrument will alarm 5 beeps.
STOP: Under the working status, press “START/STOP” to
stop working. At that time, corresponding working indicator
light “HEAT” will be turned off. The digital display window
displays the real-time temperature.
Temperature Measurement
and Calibration
1. The instrument has been operational for minimum of
30-minutes at desired setpoint.
2. An independent temperature measurement device is in
the designed 5 mm hole in Block, along with paraffin oil,
or similar heat-transfer oil.
3. Confirm the Heat-indicator is ‘ON’ steady, not ‘blinking’.
4. Compare the Display and independent measurements.
And check if the temperature gap is > 0.2°C or not.
5. If less than 0.2°C, no calibration should be made.
6. If more than 0.2°C, calibrate the Temperature by these
steps:
a. Press and hold the “SET/CAL” button. The instrument is
in the Temperature Calibration mode with the display
window showing the measured temperature value, and
the left digit flashing.
b. Press “
” to increase, or “
” to decrease, the flashing
digit to match the same digit of the independent
measurement.
c. Press “SHIFT” to move the flashing right, to the next digit.
d. Repeat Steps 6b and 6C to complete Temperature
caibration.
e. After the temperature calibration is completed, press
“SET/CAL” button to exit the calibration mode and
continue the Start mode.
7. The Heat-indicator may start 'blinking' as the
temperature is stabilized to the calibrated temperature.
8. When the Heat-indicator is 'ON' steady, the temperature
is stable.
After the instrument stable operated for additional
10 minutes, compare the display temperature and
measurement again.
If the temperature gap is > 0.2°C, repeat all steps of 6.
I
CAUTION:
•
To ensure the accuracy of temperature, the
instrument shall be calibrated after
temperature stabilizes for 30 minutes.
•
Calibrate the instrument with qualified
Grade II standard filled thermometer.
•
Calibration point: Fill the middle hole of the
heat block with paraffin oil and soak the
thermometer bulb.
