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5.0
MAINTENANCE
Warning
The DM640X contains no user serviceable parts apart from the battery.
The DM640X must not be configured in the hazardous area.
No attempt should be made to repair the DM640X, all units must be returned
to the manufacturer for repair or replacement. Attempted repair or service
may invalidate the explosive protection feature of this equipment.
If re-calibration is required please contact your supplier for further
information. Under certain circumstances, it may be possible to re-calibrate
the device while it is still out in an application.
6.0 ATEX CERTIFICATE
The DM640X have been issued with a EC- type examination certificate, confirming
compliance with the European ATEX directive 94/9/EC for :-
Classification
II 1 G D EEx ia IIC T4
The unit bears the Community Mark and subject to local codes of practice, may be
installed in any of the European Economic Area (EEA) Members countries. The
equipment must be installed and maintained in accordance with local requirements for
electrical equipment for use in potentially explosive atmospheres, eg EN60079-14 &
EN60079-17. This instruction sheet describes installation, which confirms with
BSEN60079-14 & BS EN60079-17. When designing systems outside the UK, the local
code of practice should be consulted.
When installed correctly the DM640X series may be used in the following
areas :-
ZONE
HAZARDOUS AREA CHARACTERISTIC
worst case
GAS
DUST
0
20
Hazard Continuously present
1
21
Hazard likely to occur in normal use
2
22
Hazard not likely to occur and if it does, only for a short time.
Be used in gas groups :-
Group A
propane
Group B
ethylene
Group C
hydrogen
Allowable temperature class
T4
135°C
Tamb -20 to 50°C
6.1
ATEX Mark
The DM640X/P and DM640X/TC product labels carry the following information:-
Front Panel Label
Manufacturer
Status instruments Ltd
Type
DM640X/P DM640X/TC
Explosive protection mark
CE mark
Approval
II 1 G D EEx ia IIC T4
Certification reference
TRL06ATEX11100X
Internal Label
Serial Number
(includes date code)
Type
DM640X/TC or DM640X/P
Manufacturer information
www.statinst.com
Environmental protection: The equipment must be housed in the SCH4
series of enclosure offering protection to IP67. The enclosure must be
suitable for the atmosphere and environment in which it is installed.
6.2 SPECIALCONDITIONS FOR SAFE USE
ELECTROSTATIC HAZARD. DO NOT CHARGE BY RUBBING OR CLEANING
WITH SOLVENTS.
DO NOT CHANGE BATTERY IN THE HAZARDOUS AREA.
DM640XTC – ONLY SUITABLE FOR CONNECTION TO TYPE K,T,J,R,S,N,E,F
THERMOCOUPLES, THEY SHALL CONFORM TO THE REQUIREMENTS FOR
SIMPLE APPARATUS AS DEFINED IN CLAUSE 5.4 OF EN 50020:2002 AND
THE INPUT PARAMETERS MARKED ON THIS UNIT.
DM640XP – ONLY SUITABLE FOR CONNECTION TO RESISTANCE
TEMPERATURE SENSORS TYPES PT100 , NI120. THEY SHALL CONFORM
TO THE REQUIREMENTS FOR SIMPLE APPARATUS AS DEFINED IN
CLAUSE 5.4 OF EN 50020:2002 AND THE INPUT PARAMETERS MARKED ON
THIS UNIT.
USE ONLY TEKCELL SB-AA11 BATTERY, PART NO 28-302-0036-00.
THE UNIT SHALL BE CLEANED REGULARLY TO PREVENT THE BUILD UP
OF EXCESSIVE DUST LAYERS.
6.3 ENCLOSURE MATERIALS
SCH4 enclosure material – ABS.
SCH4 cap – Polycarbonate.
O ring seals – NBR – Acrylonitrile / Butadiene Rubber (Black).
Fig. 1 Front Panel label
Fig 2 Rear view
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6
BATTERY COVER REMO VED
BAT TERY COVER FITTE D
