Operation Of Qba - Grant QBA Mode D'emploi

Heater indicator
Power indicator
Mains switch
1. Unpack the unit carefully and retain packaging for future shipment or storage.
2. The pack includes: Block heater, Mains cable, Operating instructions, Extrac-
tor tool.
3. Plug the mains cable into the socket at the rear of the unit and position to al-
low easy access to the power switch and connector.
4. Fit the desired block(s) into the heater well. Ensure that the heater bed and
the bottom of the blocks are clean in order to ensure good thermal contact be-
tween heater and blocks resulting in optimal temperature control performance.
5. Turn the unit on by pressing the mains switch on the front of the unit. The
power light will illuminate.
6. Turn the control knob to the desired temperature.
7. The block heater will now begin to heat the blocks. The heater light will illumi-
nate continuously during the heating phase but will begin to flash when the set
temperature is approached.
8. Allow the block(s) to stabilise at the set temperature before use.
9. If a more accurate temperature setting is required, use a calibrated thermome-
ter. Place in the thermometer hole in the block and adjust the set temperature
accordingly. N.B. Allow time for block to stabilise between each adjustment.
10. To turn the unit off press the mains switch on the front. Allow the unit to cool
before completing any maintenance.
Extractor tool:
The extractor tool enables the user to remove blocks safely and easily. The tool can
be stored on the rear of the unit in the mounting bracket provided. The tool should
be screwed tightly into the threaded hole/holes in the block and then the block lifted
out.
N.B. One tool is provided with the unit for use with single blocks. A second tool is
provided with the double size blocks which require the use of two tools.
28089 Ver 12
Page 3

2. Operation of QBA

Mains inlet
www.grantinstruments.com
Extractor tool storage bracket
Removable block
Control knob
QBD, QBA, QBH,
Operating Manual