SCI-1058

SCI-1058
CHECKED IN NOT RELEASED - UNCONTROLLED COPY
Dimensions in mm
Iss Date Drn
1
7.11
07-07-2011 14:19
Do Not Scale
Third Angle Projection
Modification
MEASUREMENT TECHNOLOGY LTD
Luton, England
Copyright Reserved - Written Permission
to Copy Should be Obtained
SB
See Notes
3 and 4
HAZARDOUS
LOCATION
MOUNTED
EQUIPMENT
See note 1
HAZARDOUS LOCATION
CLASS I, DIV 1. GRPS A,B,C,D
CLASS II, DIV.1 GRPS E,F,G
CLASS III
MTL4581
MTL5581
1
2
3
4
5
6
7
8
9
10
11
12
13
14
NON-HAZARDOUS
LOCATION
MOUNTED
DEVICES
V ≤ 253V rms
See note 2
NON-HAZARDOUS or
DIVISION 2
HAZARDOUS LOCATIONS
(see Notes 6,7,8)
NON-HAZARDOUS
LOCATION
Note 1
The Hazardous location equipment may be switches or thermocouples. Other apparatus such as RTD's, LEDs and non-inductive resistors may also
be used if the auto-ignition temperature of the hazardous location is greater than T4 (275°F or 135°C) .
Certified devices with correct Entity Concept parameters may also be used.
Note 2
The Non-Hazardous Location (or Control room) equipment must not generate or use more than 253Vrms.
Note 3
For guidance on the installation see ANSI/ISA RP 12.6.
Note 4
Entity Concept Parameters for terminals 1 w.r.t 2 of the MTL4581 and the MTL5581 are as follows :Voc ≤ 1.1V
Isc ≤ 53mA (All groups).
Groups A and B
Groups C and E
Groups D,F and G
Ca ≤ 100µF
Ca ≤ 1000µF
Ca ≤ 1000µF
La ≤ 12.8mH
La ≤ 47.8mH
La ≤ 104.7mH
Note 5
The MTL4581 and the MTL5581are Associated Apparatus and when mounted in the appropriate enclosure (see notes 7 and 8) is suitable for
installation in the following areas:
Non - Hazardous Locations
Class I Division 2 Groups A,B,C and D Hazardous Locations
Class II, Division 2, Groups F,G Hazardous Locations
Class III, Division 2, Hazardous Locations
Note 6
Associated Apparatus must be installed in accordance with the National Electrical Code in an enclosure meeting the requirements of ANSI/ISA - S82.
Note 7
Use FMRC Approved or NRTL Listed dust-ignition proof enclosure(s) appropriate for environmental protection in Class II, Division 2, Groups F and G;
Class III Division 2 Hazardous Locations.
Note 8
For use in Division 2 Hazardous Locations, the MTL4581 or the MTL5581 must be installed on Factory Mutual Research Corporation
Approved Backplanes.
When the MTL4581 or the MTL5581 is installed in Division 2 Hazardous Locations, a warning label must be prominently affixed near the
unit (s) which warns that the MTL4581 or the MTL5581 must not be removed or inserted unless the area is known to be non-hazardous.
Note 9
Installations in Canada must comply with the Canadian Electrical Code.
Note 10
For Class 1, Zone 2 installations the apparatus must be installed in an enclosure that provides a minimum protection of IP54 according to ANSI/IEC60529.
Note 11
For Zone 2 locations, the external transient protection must be set at 49V or less.
System Certificate No:
Drn. By
Certifying Authority:
Drn. Date
Factory Mutual
Title
Installation Drawing for the MTL4581 and MTL5581
SOLID EDGE
N/A
7.11
Scale N/A
Sheet 1
Drg. No.
of
1
SCI-1058
A4
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