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1. Description
Our LR21 standard soldering iron is of universal application in the electronics sector with its 50 W power
rating and very wide range of bits (ET range). An integrated platinum temperature sensor and a
particularly powerful 24 V heater element provide excellent dynamic temperature behaviour.
The integrated equipotential bonding wire (pin 5) can be used to avoid potential differences in the
working area. By this means the soldering iron bit can be equipotentially bonded as required via the
supply unit. The anti-static version of the soldering iron (handle and cord) complies with requirements
for electrostatic sensitive device safety.
Technical Data
Supply Voltage:
24 V
Power Rating:
50 W
Warm Up Time:
approx. 38 sec. (50ºC - 350ºC)
Max. Temp.:
450ºC
Usable With: SL range and all Temtronic supply units
2. Placing into Operation
Put the soldering iron in the safety stand. Remove all flammable materials from the immediate vicinity
of the soldering iron. Plug the connector into the supply unit and lock. Switch on the supply unit and
adjust the temperature as required. Once the warm up period is over, wet the tip with a some solder.
3. Equipotential Bonding
The possible ways of connecting the equipotential bonding wire are described in the operating
instructions for the supply unit.
4. Information on Use
GB
● Changing the Tip
Hold the soldering iron with the tip upwards. Undo the hex nut on the tip sleeve (tool 5 87 060 43 is
available as an accessory).
Careful, the soldering iron tip is hot!!
Remove the soldering iron bit.
The sensor is built into a corrosion-resistant stainless steel body. For the optimal transfer of heat the tip
of this body is of a tapered shape that is precisely matched to the soldering iron bit. Please ensure that
this interface is not impaired by dirt, foreign bodies, or damage since this will affect the precision of
temperature regulation.
● Anti-static plastics contain a conductive material to prevent static charging. This reduces the
insulation properties of the plastic. Work must not be carried out on live parts.
● The operating instructions for the supply unit used are supplementary to these operating instructions.
5. Spare Parts
For drawing, see page 7.
6. Accessories
ET range soldering iron tips, see page 8-10.
Subject to technical change without notice!
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