Technical Specifications; Technical Tips; Which Water Should You Use In Your Bath - Grant GLS Aqua Plus Manual Del Operador

6.0

Technical specifications

Operating conditions
Ambient Temperature
Maximum relative humidity
Altitude above sea level
Operating Enviroment
Electrical details
Mains supply:
Pollution degree:
Installation Category: II
Note: Mains supply voltage fluctuations are not to exceed ±10% of the nominal supply
voltage.
Models
GLS Aqua 12 Plus
GLS Aqua 18 Plus
GLS Aqua Plus bath performance
Temperature range
Shaking speed range
Display (also used for setting)
Temperature stability to DIN 12876
The maximum shaking speed for a particular application will depend on the number and
size of vessels in the shaking tray, and the depth of the water.
7.0

Technical Tips

7.1

Which water should you use in your bath?

For the long-term reliability of water baths it is important to use oxygenated water that is
free from ions and minerals that can cause corrosion of stainless steel. We recommend
the use of distilled water and de-ionised water from modern ion exchange systems that
do not use salt back flushing to regenerate the ion-exchange cartridges.
Stainless steel is protected from corrosion by a layer of chromium oxide. If the layer is
damaged, oxygen present in water can reform the oxide layer. If the water is still or de-
oxygenated, and the oxide layer is damaged, ions can corrode the stainless steel tank. If
a water bath has been unused for some time, or water boiled, we recommend changing
to fresh distilled water or correct de-ionised water.
Water normally contains calcium or magnesium ions. De-ionised water has most ions
removed as indicated by its conductivity level; the purer the water the lower the
conductivity. It is important to use only de-ionised water from an ion exchange system
with replaceable cartridges. Do not use de-ionised water generated from an ion-
29339 Ver. 3
Page 13
5 to 40°C
80% R.H. in room temperatures up to 31°C
decreasing linearly to 50 % R.H. at 40°C
Up to 2,000 m (6,500 ft)
Indoor use only
230V @ 50/60 Hz or 120V @ 50/60 Hz
2
Capacity (L)
12
18
www.grant.co.uk
Current Rating (A)
120V
5.8
8.5
5°C above ambient to 99°C
40 to 400 strokes/min
10.0 to 99.0°C in steps of 0.1°C
± 0.2°C
Operating Manual
230V
2.8
5.4
GLS Aqua Plus