Preparations For Use - REMS MSG 25 EE Instructions De Service

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1.3. Electric data
MSG 25 EE
Rated voltage
(mains voltage) 230 V
Rated power input 500 W
Rated frequency 50 Hz
Protection class all units protection class 1 (earth conductor)
1.4. Dimensions
L 350 mm
W 120 mm
H 50 mm
1.5. Weights
Unit 1,2 kg
Support stand/
bench support 0,4 kg
1.6. Noise information
Emission
at workplace 70 dB(A)
1.7. Vibrations
Weighted effective
value of acceleration 2,5 m/s

2. Preparations for Use

2.1. Electrical connection
The sleeve welding unit must be connected to a socket with protec-
tive earthing (earth conductor). Before connecting the unit, check to
ensure that the voltage given on the rating plate corresponds to the
mains voltage.
2.2. Supporting the sleeve welding unit EE
The unit is supplied complete with a supporting stand (1) as shown in
Fig. 1. This serves as a steady during welding or as a support when
the unit is set aside. As an accessory, a clamp can be supplied for the
workbench (Fig. 2 (2)), which can be used to secure the unit in a ho-
rizontal or vertical position.
Supporting the sleeve welding unit FM
The unit should rest on the support stand (1) or be fixed on a work-
bench by using the bench support (2).
Caution! When the unit is hot, hold it only by the handle (3). Do not
touch the heating element (4), the welding tools (5) or the metal parts
between the handle (3) and heating element (4), otherwise a burn in-
jury may result.
2.3. Selection of welding tools EE
The choice of welding tools, i.e. heating spigot and heating socket
(Fig. (3), depends on the size of pipe to be processed. The tools them-
selves are mounted to the heating element with the allen key sup-
plied, as shown in Fig. 1 (5). The plug can be prevented from secu-
red twisting with the pin, which is also supplied. Depending on the mo-
del specification and intended application, two or more welding tools
can be mounted to the heating element at the same time.
Selection of welding tools FM
Select welding tools (5), heating spigot and heating socket, according
to the pipe size. The tools are mounted on the heating element (4)
with the allen key supplied. Two welding tools can be mounted on the
heating element at the same time.
2.4. Electronic temperature control EE
According to DIN 15960 and DVS 2208, Part 1, the temperature of
the heating element should be capable of being adjusted in fine stages.
In order to ensure that the heating element operates at the required
constant temperature, these machines are equipped with a thermostat.
DVS standard 2208, Part 1 specifies a maximum differential of 3°C
between the preset and actual temperatures. In practice, this degree
of accuracy cannot be achieved mechanically, but only by an elec-
tronic thermostat. For this reason, therefore, welding machines ope-
rating at a fixed, preset temperature or employing a mechanical ther-
mostat may not be used for welding operations as described in DVS
2207.
The temperature can be adjusted on all REMS sleeve welders EE.
MSG 63 EE MSG 63 FM MSG 125 EE
230 V 230 V
800 W 800 W 1400 W
50 Hz 50 Hz
370 mm 380 mm 530 mm
180 mm 130 mm 180 mm
50 mm 50 mm 85 mm
1,7 kg 1,0 kg
0,4 kg 0,63 kg
70 dB(A) 70 dB(A) 70 dB(A)
2 2,5 m/s 2 2,5 m/s 2 2,5 m/s
They are supplied with an electronic thermostat. The type of ther-
mostat fitted is identified on the rating plate by code letters, examples
230 V of which are given below:
for ex. REMS MSG 63 EE: Adjustable temperature (E), electronic
50 Hz
thermostat (E). The preset temperature is adjusted to within +/- 1°C,
i.e. with a preset temperature of 260°C (welding temperature for PP),
the actual temperature will fluctuate between 259°C and 261°C.
Mechanical temperature control (thermostat) FM
The required operating temperature is set at 260 ±10°C. Pay attention
to the manufacturer's information pipe and fittings! Before starting any
welding work, the temperature on the surface of the welding tools
should be monitored.
3,0 kg
2.5. Preheating of the sleeve welding unit EE
0,4 kg
As soon as the connecting lead is connected to the mains, the welder
will begin to heat up. The red power-on indicator lamp (6) and green
temperature indicator lamp (7) light up. The machine requires about
10 minutes to heat up. Once the required preset temperature is rea-
ched, the built-in thermostat cuts out the power supply to the heating
element. The red indicator lamp continues to glow. The green tempe-
rature indicator lamp lights up intermittently, indicating the repeated
switching on and off of the power supply. After a further 10 minutes
2
waiting time, (DVS 2207, Part 1), welding operations can begin.
Preheating of the sleeve welding unit FM
As soon as the connecting lead is connected to the mains, the wel-
ding unit begins to heat up. The green power-on indicator lamp (6)
and the red temperature indicator lamp (7) light up. The unit requires
about 10 min. to heat up. Once the required temperature is reached,
the built-in thermostat cuts off the power supply to the heating ele-
ment. The red temperature control lamp turns off. Whenever the red
temperature control lamp is lit, the no welding should be carried out.
2.6. Selecting the correct welding temperature EE
The welder heating element is preadjusted to the average welding
temperature for PP pipes (260°C). Depending on the pipe material
and gauge of the pipe walls, it may be necessary to adjust this tem-
perature. In this case, observe the manufacturer's information on the
pipes or mouldings without fail. In addition, the temperature of the wel-
ding tools (spigot and socket) should be checked with an electric sur-
face thermometer. If necessary, the temperature can be adjusted by
turning the temperature adjusting screw (8). In this case, it should be
remembered that the heating element must not be used until 10 mi-
nutes after the preset temperature has been reached.
3. Operation
3.1. Description of process
In welding with the sleeve welder, the pipe and sleeve are welded to-
gether overlapping. The end of the pipe and moulded sleeve are hea-
ted to welding temperature by means of the welding tool (spigot and
socket), then welded together. The end of the pipe and fitting are mat-
ched to the welding spigot and socket respectively in such a way that
a build-up of pressure takes place in the joint when the two compo-
nents are mated (Fig. 4).
Guideline DVS 2208 specifies two methods of sleeve welding in ca-
ses where the heated spigot and socket are of different sizes. In the
case of method A, no provision is made for any mechanical pre-pro-
cessing of the pipe, while in the case of method B, the pipe is me-
chanically stripped. The REMS spigot and socket are configured so-
lely for method A, i.e. no mechanical pipe processing is required.
Sleeve weldings can be made manually on pipes up to and including
diameters of 50 mm. With larger pipes, a suitable welding machine
must be used because of the increasing forces required to achieve
the joint.
3.2. Preparations for welding
Take care to observe the information issued by the manufacturer of
the pipes or mouldings. The end of the pipe must be cut off square
and flat, either with a REMS RAS pipe cutter (see 1.1) or REMS ROS
pipe shears (see 1.1). In addition, the end of the pipe should be cham-
fered to facilitate insertion into the socket. This process should be per-
formed with the REMS RAG pipe chamfering unit (see 1.1). Imme-
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