Ratek SWB10D240 User Manual Download Page 13

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Ratek SWB10D Water Bath - Operating Manual

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Page 13 of 24

Use the temperature increase key pad (element 4 in Figure 1) to increase the required temperature
by pressing quickly for single digit increments, or holding the key to increase the temperature setting
by larger amounts. The value on the LCD temperature display (element 3 in Figure 1) will alter.

Use the temperature decrease key pad (element 5 in Figure 1) to decrease the required temperature
by pressing quickly for single digit increments, or holding the key to decrease the temperature setting
by larger amounts. The value on the LCD temperature display (element 3 in Figure 1) will alter.

Once the adjustments have been made, the LCD temperature display (element 3 in Figure 1) will
return to show the current water temperature after a few seconds.

If the last set temperature is greater than the current water temperature, the Heating Element
Indicator (element 7 in Figure 1) will light up and either flash to indicate intermittent heating or remain
lit constantly to indicate constant heating.

Once the water temperature nears the set point, the PID temperature control circuit will start to
intermittently engage the element to reduce the rate of heating.

It is norma

It is normal for the temperature to exceed the set point slightly whilst the temperature in the bath

l for the temperature to exceed the set point slightly whilst the temperature in the bath

stabilizes. The bath temperature will drop back down to the set temperature and then the proportional

stabilizes. The bath temperature will drop back down to the set temperature and then the proportional
temperature control will attempt to maintain the set temperature

temperature control will attempt to maintain the set temperature

temperature control will attempt to maintain the set temperature....

CAUTION

CAUTION
If the temperature of the water in the water bath is critical to your application, ensure the water bath is
left for at least 30 minutes to stabilize after the temperature has reached the set-point before you insert
your containers and samples into the water.

CAUTION

CAUTION
Temperatures above 50 degrees are sufficient to cause steam and are also capable of causing burns or
scalding. Exercise extreme care paying particular attention to steam and splashing of water when the
water bath is operating at these high temperatures, particularly whilst loading and unloading,
containers, racks or accessories. ALWAYS use appropriate tools (such as silicon insulated tongs) to
lower such containers into the water to avoid your hands coming into contact with hot water.

IMPORTANT : The maximum attainable temperature in t

IMPORTANT : The maximum attainable temperature in the

he water bath

water bath

water bath is approximately 80

is approximately 80

is approximately 80° Celsius

° Celsius

(depending on environmental factors such as

(depending on environmental factors such as volume of water,

volume of water,

volume of water, ambient air temperature, water quality

ambient air temperature, water quality

and humidity)

and humidity), however the control circuitry

, however the control circuitry

, however the control circuitry will allow a set

will allow a set

will allow a set----point of up to 99.9° Celsius. Due to

point of up to 99.9° Celsius. Due to

environmental factors including the size of the water tank, the power of the heating element, the water

environmental factors including the size of the water tank, the power of the heating element, the water
being open to the air and the resulting evaporation, the

being open to the air and the resulting evaporation, the

being open to the air and the resulting evaporation, the water bath

water bath

water bath is rated

is rated

is rated for practical use onl

for practical use onl

for practical use only up to

y up to

70° Celsius whilst maintaining accurate temperature stability. The

° Celsius whilst maintaining accurate temperature stability. The

° Celsius whilst maintaining accurate temperature stability. The water bath

water bath

water bath will not achieve a water

will not achieve a water

temperature of 99.9° Celsius by design.

Loading/Un

Loading/Un----Loading the

Loading the

Loading the Water Bath

Water Bath

CAUTION

CAUTION
NEVER load or unload items from the cradle whilst the cradle is in operation. The moving cradle is
capable of causing injury if any part of the body becomes lodged around it.

ALWAYS load items ONLY onto the bottom of the cradle platform which is suspended above the bottom
of the water tank, and ensure that no part of the item extends beyond the width of the cradle (outside the
retaining walls). Items that extend beyond the width of the cradle may cause the water bath to jam or
create a hazardous situation whereby personal injury could occur.

NEVER load items directly onto the bottom of the water tank as this will result in the oscillating cradle
becoming jammed. The bottom of the water tank is also in direct contact with the element and any items
that come into contact with it may be destroyed.

CAUT

CAUTION

ION

NEVER touch the bottom of the water tank whilst the water bath is heating as serious burns and scalding
could result.

ALWAYS use appropriate tools (such as silicon insulated tongs) to load and unload items from the water