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Data Sheet 406012
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
Email:
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
Email:
Internet: www.jumo.co.uk
JUMO Process Control, Inc.
6733 Myers Road
East Syracuse, NY 13057, USA
Phone: 315-437-5866
1-800-554-5866
Fax:
315-437-5860
Email:
Internet: www.jumousa.com
40601200T10Z001K000
Ex-relevant technical data for operation in areas with combustible dust
Notes on using the device in areas with combustible dust
The device with the transmitter in a single-compartment housing is approved for use in potentially explosive areas (gas and dust).
The Ex identification marking is provided on the nameplate.
Maximum admissible surface temperature
Minimum signal cable length
IMPORTANT (NOTE)!
The dust explosion protection is guaranteed in part by the housing. The housing may not be modified in any way (e.g. by removing
or omitting parts).
IMPORTANT (NOTE)!
The maximum surface temperature is applicable to dust layers of up to 5 mm (0.20 inches) in thickness. This is to be used to de-
termine the minimum admissible ignition and glow temperature for the dust atmosphere according to IEC 61241ff.
The maximum admissible surface temperature must be reduced for thicker dust layers. The dust may be electrically conductive or
non-conductive. IEC 61241ff. must be observed.
Model designation
Surface temperature
406012/1-1
70 °C (158 °F) to T
Medium
406012/2-1
85 °C (185 °F) to T
Medium
406018/2-1 (single-compartment/dual-compartment housing)
70 °C (158 °F)
IMPORTANT (NOTE)!
The signal cable in potentially explosive areas may not be shorter than 5 m (16.40 ft).
