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Programming (QBH with external probe only)
The QBH is capable of running a simple program consisting of three temperature
and time segments and an end phase. All the temperature/time segments must be
set even if only 2 steps are required. An external probe must be fitted to edit or run a
program.
1
Press F to enter main menu.
2
Rotate control knob until display shows . Press S to select.
3
Rotate the control knob to show  or . Press S to select state. (On
or Off will return the display to actual temperature. On runs the program, Off
returns to normal operation).
4
If is selected the display will show (section 1) then  (set point).
5
Press S to select.
6
The display will flash and show the current set value. Rotate the control knob
until the desired value is displayed and press S to select.
7
The display will show t (time). Press S to select.
8
The display will flash and show the time in minutes. Rotate the control knob
until the desired value is displayed and press S to select.
9
The display will show  (section 2).
10
Repeat steps 6 to 10 above for sections 2 and 3.
11
The display will show  (section 4), press S to select.
12
The display will show  (buzzer) press S to select.
13
By rotating the control knob the display will show or. Press S to select
state of buzzer when the program finishes (it will sound for 1 minute).
14
The display will show (heater control). Press S to select.
15
By rotating the control knob the display will show or. Press S to select
state of heater control when the program finishes. If Off is selected the heater
is switched off after the last step and there is no temperature control. If On is
selected the unit will return to normal operation.
16
The unit is now programmed; to run the program:
17
Press F to enter main menu.
18
Rotate control knob until display shows . Press S to select.
19
By rotating the control knob the display will show  or . Select On
and press S. (If external probe is not selected  will be displayed).
20
To cancel the program complete steps 18 to 21 but select Off.
Notes:
1.
When running a program the display will alternate as follows: When heating up
the display will alternate between  and the actual temperature. When tem-
perature has been achieved the display will alternate between time left, step
number and actual temperature.
2.
The time count down for each step is only started once the actual temperature
is within 1 ºC of the set temperature.
28089 Ver 12
Page 11
www.grantinstruments.com
QBD, QBA, QBH,
Operating Manual

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