JUMO 902930 Wtrans Transmitter RTD Temperature Probe with Wireless Data Transmission Data Sheet - Manual

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JUMO GmbH & Co. KG
Delivery address: Mackenrodtstraße 14
36039 Fulda, Germany
Postal address: 36035 Fulda, Germany
Phone: +49 661 6003-0
Fax: +49 661 6003-607
E-mail: [email protected]
Internet: www.jumo.net
JUMO Instrument Co. Ltd.
JUMO House
Temple Bank, Riverway
Harlow, Essex CM20 2DY, UK
Phone: +44 1279 635533
Fax:
+44 1279 635262
E-mail: [email protected]
Internet: www.jumo.co.uk
JUMO Process Control, Inc.
8 Technology Boulevard
Canastota, NY 13032, USA
Phone: 315-697-5866
1-800-554-JUMO
Fax: 315-697-5867
E-mail: [email protected]
Internet: www.jumo.us
2012-03-02/00473251
JUMO Wtrans Transmitter
RTD Temperature Probe with Wireless
Data Transmission
The Wtrans transmitter is used in connection with a Wtrans receiver for stationary or mobile detection of temperatures
within the operating range of -30 to +260 °C or -200 to +600 °C. This measured temperature value is transmitted wire-
lessly to the receiver of the Wtrans measuring system, where it is displayed and available digitally at the RS485 inter-
face as well as an analog output. One receiver variant can signal various alarms on two relay outputs.
The electronic transmission components of the RTD temperature probe are fitted in a vibration-proof design in the oil-
resistant and acid-proof case, the ambient temperature of which may either be from -30 to +85 °C or from
-25 to +125 °C. The protection type is IP67. Only a durable lithium battery 3.6 V is used for voltage supply.
The radio frequencies of the Wtrans measuring system (868.4 MHz or 915 MHz) are largely impervious to external in-
terferences and allow transmission even in a rough industrial environment. When using the antenna wall holder with
the 3 m long antenna cable for the receiver, the open air range is 300 m.
The stainless steel protection tube with the Pt1000 temperature sensing element according to DIN EN 60751, class A
in a 3-wire circuit is available with a flat, oblique, or centered probe tip. The insertion length is between
30 to 10000 mm. The variants are available with an extension tube or an M12 × 1 plug connection as an option to con-
nect Pt1000 RTD temperature probes.
The Wtrans transmitter is also available as a version with ATEX approval (basic types 902930/15, .../17, .../55). These
devices can be installed directly in explosive areas up to zone 0. The receiver is installed outside the Ex zone. The
radio data transmission from the Ex area avoids costly installations with cable and protection barrier or supply isola-
tors.
The design of the JUMO RTD temperature probes is to be agreed upon in the order. The Ex variant with M12 connector
is always delivered with an approved JUMO RTD temperature probe with PTFE connection cable. Devices with pro-
cess connections can be ordered in versions with Ex zone separation.
A setup program is available as an accessory for easy configuration and parameterization of the Wtrans measuring
system on the PC. The OnlineChart function can be used optionally to record the measured values on the PC.
Block diagram
Data sheet 902930
Suitable
Wtrans receivers
k Max. 16 Wtrans transmitters
per Wtrans receiver
k Little wiring work required due to
modern wireless technology
k Radio frequency 868.4 MHz or 915 MHz;
in the 915 MHz frequency band,
ten frequencies can be configured
k Interface RS485 with Modbus protocol
k Four analog outputs
0(4) to 20 mA / 0 to 10 V
or
two analog outputs
(0)4 to 20 mA / 0 to 10 V
and two relay outputs AC 230 V
k For fitting on a DIN rail
35 mm × 7.5 mm
according to DIN EN 60715
For further information refer to data sheet
902931
k For operating temperatures between -30 to +260 °C or -200 to +600 °C
k For mobile or stationary temperature measurement
k Open air range 300 m with interference-resistant transmission
k No wiring work due to state-of-the-art wireless technology
k Approval according to EC directive 94/9/EC (ATEX)
Basic type 902930/10
Approvals/approval marks
(see "Technical Data")