Routine Safety Tests; Service; Optional Accessories; Troubleshooting - Grant GLS Aqua 18 Plus Mode D'emploi

9.2.2 Routine safety tests

If routine tests are to be made, we recommend a test of the integrity of the protective
earth conductor and an insulation test at 500 V DC. Routine flash tests are not
recommended for any electrical equipment, because repeated high voltage tests degrade
insulation materials.
9.3

Service

If service is required, switch off the unit and contact Grant Instruments or your local
representative for repairs.
Service Department
Grant Instruments (Cambridge) Ltd
Shepreth
Cambridgeshire
SG8 6GB
England.
Tel: +44 (0) 1763 260 811
Fax: +44 (0) 1763 262 410
E-mail: labservice@grant.co.uk

10.0 Optional accessories

A full listing of product accessories and options is available in the Grant Scientific
Reference Catalogue (a copy of which is available upon request) and on the Grant
website at www.grant.co.uk.

11.0 Troubleshooting

No lights or display - check power source, mains switch and fuses.
Water is not reaching temperature - check that the set temperature and the sample
protection thermostat are set correctly.
Display shows ‟ ‟ - check that the sample protection thermostat is set correctly.
EN
Display temperature is different from actual temperature - use single ( ) or twin
point calibration ( ) to correct this.
There is no last digit on the display - allow the bath to stabilise.
Temperature of water fluctuates - check that the sample protection thermostat is set
correctly.
GLS Aqua Plus 29339 Ver. 3
Operating Manual Page 16
www.grant.co.uk