Setting The Safety Temperature Limit - IKA RET Operating Instructions Manual

Unpacking
• Unpacking
- Unpack the device carefully
- Any damage should be notified immediately to the shipping
agent (post office, railway network or transport company)
• Scope of delivery
- RET control-visc heated magnetic stirrer
- Power supply cable
- Operating instructions
- Screwdriver (safety circuit)
- USB cable
Intended use
• Use
- The magnetic stirrer is suitable for mixing and / or heating
substances.
• Area of use
Indoor environments similar to that a laboratory of research,
teaching, trade or industry area.
Assembling the support rod
• Review the mounting and safety instructions of the IKA boss
head clamp prior to using it. (see "Accessories")
• The device must not be suspended from the support rod!
17 mm
4.
4.
3.
2.
3. 2.
1.
1.
24
- Protective cover: H 104
- Magnetic stirring bar: IKAFLON 30 and 40 mm
- Temperature sensor: PT 100.70
- O Ring
O-Ring
Please slide the O-Ring on the power cord plug to avoid ingress of
water into the connector.
The safety of the user cannot be guaranteed:
- if the device is operated with accessories that are not supplied
or recommended by the manufacturer,
- if the device is operated improperly or contrary to the
manufacture's specifications,
- if the device or the printed circuit board are modified by third
parties.
Note:
When using bath attachments with a diameter over 180 mm, use
support rod in conjunction with an
extension (see "Accessories").
DANGER
Risk of tipping!
Make sure that the center of mass
of the attached device does not
protrude over the safe area indicat-
ed below with a dotted rectangle.
safe area

Setting the safety temperature limit

The maximum achievable heating plate temperature is restricted
by an adjustable safety temperature limit. Once this limit has been
reached, the device stops heating.
The safe temperature limit must
WARNING
always be set at least 25 °C lower
than the fire point of the media to
be processed!
The adjustable maximum heating plate temperature is at least 10
°C under the set safety temperature limit.
Setting range: [50 °C] to [max. SET temperature + 50 °C]
Factory setting: [max. SET temperature + 50 °C]
Setting the safety temperature limit
After switching on the device, the safety temperature limit (7) can
be adjusted using a screwdriver.
Do not turn the setting screw beyond the clockwise or anticlock-
wise stop. This will cause irreparable damage to the potentiometer.
• Set the main switch (A) to the ON position
• Using the screwdriver supplied, turn the "Safe Temp" setting
screw (B) to the clockwise stop.
• Use the temperature rotary knob (C) to set the target temperatu-
re to the desired "Safe Temperature" and wait until the tempera-
ture is achieved.
• Turn the "Safe Temperature" setting screw (B) slowly anticlo-
ckwise until the heating function switches off and the display
shows Er 25 .
• The "Safe Temp" value (7) is displayed on the screen.
Setting the safety temperature limit as to
WARNING
be done as described.
The value "Safe Temperature" shown on
the display only serves for visualization.
Functional test: safety circuit switch-off
• Heat the device to a temperature of over 50 °C.
• Set the safety temperature limit as far to the left as possible (50
°C) and set the Main switch (A) to the ON position.
• The display will show: Er 25
25