promesstec WTR 620 User manual

Special dangers
Personnel qualification
- The sensor has been manufactured exclusively for the intended use described here or in
the data sheet and may only be used in this way.
- The technical specifications in these operating instructions must be observed.
- Improper handling or operation of the device outside of the technical specifications
requires immediate shutdown and inspection by promesstec.
- If the unit is transported from a cold to a warm environment, condensation may cause
the unit to malfunction.
- efore using the appliance again, wait until the temperature of the appliance has adjusted
to the room temperature.
Claims of any kind are excluded due to improper use!!!
Improper handling of the sensor can lead to considerable personal injury and damage to
property. The activities described in this operating manual may only be carried out by
qualified personnel with the appropriate qualifications. For installation and commissioning
of the sensor, the relevant country-specific guidelines and standards must be observed.
Especially during installation, depending on the application, contact with aggressive media
may occur. The safety measures must be observed. Electrical installation and
commissioning may only be carried out by qualified and trained personnel.
Residues of measuring materials in dismantled devices can endanger persons, the
environment and equipment. Sufficient precautionary measures must be taken. The units
must not be used in safety or emergency stop installations.Incorrect use or operation of
the unit can lead to injuries. At Depending on the application, aggressive media with
extreme temperatures and high temperatures and high pressure or vacuum may be
present.We recommend installing and and dismantling of the unit only at ambient
temperature and in a depressurised state.
Dangers when operating the appliance
Our units have a very high protection class when properly assembled and installed.
When cleaning your unit with high-pressure cleaners, steam cleaners, etc., make sure
that neither the cover nor the cable gland or M12 connector are directly exposed to the
pressure jet. If the temperature falls below the dew point, condensation may form in the
connection compartment of the unit. In such extreme applications, contact our sales and
technical support before commissioning.
Quick guide temperature switch WTR 620
Intended product use
Safety instructions !!!
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Temperature measurement technology
promesstec GmbH * Niedersachsenstraße 4 * 48465 Schüttorf * Tel.:[phone] * Fax [phone] * E-Mail: [email protected] * Internet: www.promesstec.com

Connection WTR 620
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Mechanical structure
Electrical connection WTR 620
Operating voltage U = 8...30 V DC
Current requirement 15 mA + output PNP
Switch-on delay <0.3s
Measured value recording PT100 class A
Measuring range -50°C to +150°C
Measurement deviation (accuracy) < ±0.1% of final value
Output PNP, (active max. 60 mA, short-circuit proof)
Control behaviour two-point controller
Factory setting of switching point 50°C
Factory setting hysteresis 1°C
Protection class IP69K according to DIN 60529
Electrical connection M12 5-pole
Interface RS485 Modbus protocol for configuration as well as readout of the
measurement results and statuses
Process connection G ½
Width across flats 24
Tightening torque 5..10 Nm
Material Protection tube Stainless steel 1.4571 (V4A)
Diameter 6 mm
Storage temperature -20 to 60 °C
Process pressure/operating pressure max. 10 bar
Humidity 0...95 % r. h.
Weight approx. 150 g
Technical spezification WTR 620
Temperature measurement technology
promesstec GmbH * Niedersachsenstraße 4 * 48465 Schüttorf * Tel.:[phone] * Fax [phone] * E-Mail: [email protected] * Internet: www.promesstec.com

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Configuration WTR 620
The WTR 620 has an RS485 interface and works with the Modbus RTU protocol.
The interface can be used to read out the measured values and the status as well as
to carry out the configuration. The switching point, the hysteresis, the output logic
and the Modbus ID can be configured. The temperature switch has the address "1"
as standard and can be configured by a Modbus master. It is also possible to
configure the WTR 620 using the in-house Windows software "pmtKonfigTool". An
RS485 to US programming adapter is required for this.
The register table, designations and explanations are stored in the data sheet of the
WTR 620. A detailed explanation of the configuration can be found in the
instructions.
Configuration via Modbus Master
Configuration via Windows software
Temperature measurement technology
promesstec GmbH * Niedersachsenstraße 4 * 48465 Schüttorf * Tel.:[phone] * Fax [phone] * E-Mail: [email protected] * Internet: www.promesstec.com

Mechanical installation
Return and repair
Electrical assembly
The promesstec sensors have a modular design. This allows us to carry out repairs and
overhauls of defective devices. To do this, send the device to promesstec. You will find
a return form with the details to be provided on on our homepage under
"Technical information".
Disposal of the units
promesstec GmbH * Niedersachsenstraße 4 * 48465 Schüttorf * Tel.:[phone] * Fax [phone] * E-Mail: [email protected] * Internet: www.promesstec.com
Dispose of units, components and packaging in an environmentally friendly manner in
accordance with the waste treatment and disposal regulations typical for the country.
Pay attention to waste separation and recycling of high-quality materials such as
stainless steel, etc.
Further documentation
These operating instructions and the data sheets can be found as a file on our homepage
under the homepage under the respective units. The documentation is available in both
and in English. Other languages are available on request. Additional information such as
characteristic curves of temperature sensors etc. can be found on our homepage under
www.promesstec.de
Important notes !!!
ssembly instructions !!!
Temperature measurement technology
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- Only use the welding sockets and process connections from promesstec for the
adaptation in your process. This is the only way we can guarantee you an optimum
measuring point.
- After installing the sensor, check the tightness of the measuring point.
- Install the sensor in your process before the electrical assembly. In this way you avoid
winding up the cable when mounting the measuring point.
- M12 plug: Screw the M12 socket by hand onto the plug on the promesstec sensor.
Mounting is done without tools.
- When installing the connection cable, ensure that both components are firmly and
positively connected. The permissible tightening torque can be found in the data sheet
of the data sheet of the respective connection cable
version 2.2.1