SCI-1035

Dimensions in mm
Iss Date Drn
1
2
Do Not Scale
Modification
MEASUREMENT TECHNOLOGY LTD
Luton, England
Copyright Reserved - Written Permission
to Copy Should be Obtained
2.12 CMB
1.14 SB
Notes 2 to 10 re-worked, now notes 2 to 13 and
various tables added.
See Notes
3, 4 and 5
1
2
3
4
5
6
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
Third Angle Projection
MTL4521
or MTL4521L
or MTL4523
or MTL4523R
or MTL4523V
or MTL4523VL
or MTL4524
or MTL4524S
or MTL4525
or MTL5521
or MTL5523
or MTL5523V
or MTL5523VL
or MTL5524
or MTL5525
7
8
9
10
11
12
13
14
NON-HAZARDOUS
LOCATION
MOUNTED
DEVICES
V ≤ 253V rms
See note 3
NON-HAZARDOUS or
DIVISION 2
HAZARDOUS LOCATIONS
(see Notes 6,7,8)
See Notes
3, 4 and 5
HAZARDOUS
LOCATION
MOUNTED
EQUIPMENT
See note 1
HAZARDOUS LOCATION
CLASS I, DIV 1. GRPS C,D
CLASS II, DIV.1 GRPS E,F,G
CLASS III
MTL5522
1
2
3
4
5
6
NON-HAZARDOUS
LOCATION
7
8
9
10
11
12
13
14
NON-HAZARDOUS
LOCATION
MOUNTED
DEVICES
V ≤ 253V rms
See note 3
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.
This associated apparatus may also be connected to simple apparatus as defined in Article 504.2 and installed and temperature classified in
accordance with Article 504.10 (B) of the National Electrical Code (ANSI/NFPA 70), or other local codes, as applicable.
Note 2
Selected intrinsically safe equipment must be third party listed as intrinsically safe for the application, and have intrinsically safe entity
parameters conforming with Table 1 below. :TABLE 1
IS Equipment
Associated Apparatus
≥
≥
≥
≤
≤
V max (or Ui)
I max (or Ii)
P max, Pi
Ci + Ccable
Li + Lcable
Voc or Vt (or Uo)
Isc or It (or Io)
Po
Ca (or Co)
La (or Lo)
System Certificate No:
Drn. By
Certifying Authority:
Drn. Date
UL
Title
Installation Drawing for the MTL452X and MTL552X
SOLID EDGE
N/A
1.14
Scale N/A
1
Sheet
Drg. No.
of
4
SCI-1035
A4
Dimensions in mm
Iss Date Drn
1
2
Do Not Scale
Third Angle Projection
Modification
MEASUREMENT TECHNOLOGY LTD
Luton, England
Copyright Reserved - Written Permission
to Copy Should be Obtained
2.12 CMB
1.14 SB
Notes 2 to 10 re-worked, now notes 2 to 13 and
various tables added.
Note 3
Control equipment must not use or generate more than 250Vrms with resect to earth.
Note 4
For guidance on the installation see ANSI/ISA RP 12.6.
Note 5
Capacitance and inductance of the field wiring from the intrinsically safe equipment to the associated apparatus shall be calculated and
must be included in the system calculations as shown in Table 1. Cable capacitance, Ccable, plus intrinsically safe equipment capacitance,
Ci must be less than the marked capacitance, Ca (or Co), shown on any associated apparatus used. The same applies for inductance
(Lcable, Li and La or Lo, respectively). Where the cable capacitance and inductance per foot are not known, the following values shall be
used : Ccable = 60pF/ft., Lcable = 0.2 uH/ft.
Note 6
Non-Hazardous Area Input Terminals 7, 8, 9, 10, 11, 12, 13 & 14:
Um = 250V
The apparatus are designed to operate on the above terminals from d.c. supply voltage of up to 35V.
MTL4521, 4523, 4523R, 4523L, 4523V, 4524, 4524S, 4525, 5521, 5523 & 5524.
The device has the output entity parameters, as shown in Table 2 below :TABLE 2
Terminal nos. Voc = Uo
Ci
Li
Po
Isc = Io
2/3 w.r.t 1
25V
147mA
0
0
0.92W
The capacitance and either the inductance or the inductance to resistance ratio (L/R) of the hazardous area load connected must not
exceed the values for either channel, as shown in Table 3 below:TABLE 3
Group
Capacitance (µF)
Hazardous Area Terminals 2/3 w.r.t 1
Group A & B
0.11
Group C & E
0.84
Group D, F & G
2.97
Inductance (mH)
L/R Ratio (µH/ohm)
1.4
7.2
14.4
40
159
328
Note a)
The above load parameters apply when one of the two conditions below is given:
- The total Li of the external circuit (excluding the cable) is <1% of the Lo value or
- The total Ci of the external circuit (excluding the cable) is <1% of the Co value
Note b)
The above parameters are reduced to 50% when both of the two conditions below are given:
- The total Li of the external circuit (excluding the cable) is ≥ 1% of the Lo value and
- The total Ci of the external circuit (excluding the cable) is ≥ 1% of the Co value
The maximum capacitance allowed shall not be more than Co = 600nF Groups A & B and Co = 1uF Groups C, D, E, F & G.
MTL4521L, MTL4523VL & MTL5523VL
Non-Hazardous Area Input Terminals 7, 8, 9, 10, 11, 12, 13 & 14
Um = 250V
The apparatus are designed to operate on the above terminals from d.c. supply voltage of up to 35V.
The device has the output entity parameters, as shown in Table 4 below :TABLE 4
Terminal nos. Voc = Uo
2/3 w.r.t 1
25V
Isc = Io
108mA
Ci
0
Li
0
Po
0.68W
System Certificate No:
Drn. By
Certifying Authority:
Drn. Date
UL
Title
Installation Drawing for the MTL452X and MTL552X
SOLID EDGE
N/A
1.14
Scale N/A
2
Sheet
Drg. No.
of
4
SCI-1035
A4
Dimensions in mm
Iss Date Drn
2
1.14 SB
Do Not Scale
Third Angle Projection
Modification
MEASUREMENT TECHNOLOGY LTD
Luton, England
Copyright Reserved - Written Permission
to Copy Should be Obtained
Notes 2 to 10 re-worked, now notes 2 to 13 and
various tables added.
The capacitance and either the inductance or the inductance to resistance ratio (L/R) of the hazardous area load connected must
not exceed the values for either channel, as shown in Table 3 below:TABLE 5
Group
Capacitance (µF)
Inductance (mH)
L/R Ratio (µH/ohm)
3.04
12.19
24.38
52
210
421
Hazardous Area Terminals 2/3 w.r.t 1
Group A & B
0.11
Group C & E
0.84
Group D, F & G
2.97
Note a)
The above load parameters apply when one of the two conditions below is given:
- The total Li of the external circuit (excluding the cable) is <1% of the Lo value or
- The total Ci of the external circuit (excluding the cable) is <1% of the Co value
Note b)
The above parameters are reduced to 50% when both of the two conditions below are given:
- The total Li of the external circuit (excluding the cable) is ≥ 1% of the Lo value and
- The total Ci of the external circuit (excluding the cable) is ≥ 1% of the Co value
The maximum capacitance allowed shall not be more than Co = 600nF Groups A & B and Co = 1uF Groups C, D, E, F & G.
MTL5522
Non-Hazardous Area Input Terminals 7, 8, 9, 10, 11, 12, 13 & 14
Um = 250V
The apparatus are designed to operate on the above terminals from d.c. supply voltage of up to 35V.
The device has the output entity parameters, as shown in Table 6 below :TABLE 6
Terminal nos. Voc = Uo
Ci
Li
Po
Isc = Io
2/3 w.r.t 1
25V
166mA
0
0
1.04W
The capacitance and either the inductance or the inductance to resistance ratio (L/R) of the hazardous area load connected must
not exceed the values for either channel, as shown in Table 7 below:TABLE 7
Group
Capacitance (µF)
Hazardous Area Terminals 2/3 w.r.t 1
Group C & E
0.84
Group D, F & G
2.97
Inductance (mH)
5.6
10.4
L/R Ratio (µH/ohm)
132
286
Note a)
The above load parameters apply when one of the two conditions below is given:
- The total Li of the external circuit (excluding the cable) is <1% of the Lo value or
- The total Ci of the external circuit (excluding the cable) is <1% of the Co value
Note b)
The above parameters are reduced to 50% when both of the two conditions below are given:
- The total Li of the external circuit (excluding the cable) is ≥ 1% of the Lo value and
- The total Ci of the external circuit (excluding the cable) is ≥ 1% of the Co value
The maximum capacitance allowed shall not be more than Co = 1uF for Groups C, D, E, F & G.
System Certificate No:
Drn. By
Certifying Authority:
Drn. Date
UL
Title
Installation Drawing for the MTL452X and MTL552X
SOLID EDGE
N/A
1.14
Scale N/A
3
Sheet
Drg. No.
of
4
SCI-1035
A4
Dimensions in mm
Iss Date Drn
2
1.14 SB
Do Not Scale
Third Angle Projection
Modification
MEASUREMENT TECHNOLOGY LTD
Luton, England
Copyright Reserved - Written Permission
to Copy Should be Obtained
Notes 2 to 10 re-worked, now notes 2 to 13 and
various tables added.
MTL4525 and MTL5525
Non-Hazardous Area Input Terminals 7, 8, 9, 10, 11, 12, 13 & 14
Um = 250V
The apparatus are designed to operate on the above terminals from d.c. supply voltage of up to 35V.
The device has the output entity parameters, as shown in Table 8 below :TABLE 8
Terminal nos. Voc = Uo
Ci
Li
Po
Isc = Io
2/3 w.r.t 1
25V
83.3mA
0
0
0.52W
The capacitance and either the inductance or the inductance to resistance ratio (L/R) of the hazardous area load connected must
not exceed the values for either channel, as shown in Table 9 below:TABLE 9
Group
Capacitance (µF)
Hazardous Area Terminals 2/3 w.r.t 1
Group A & B
0.11
Group C & E
0.84
Group D, F & G
2.97
Inductance (mH)
L/R Ratio (µH/ohm)
5.3
21.8
44.7
68
254
536
Note a)
The above load parameters apply when one of the two conditions below is given:
- The total Li of the external circuit (excluding the cable) is <1% of the Lo value or
- The total Ci of the external circuit (excluding the cable) is <1% of the Co value
Note b)
The above parameters are reduced to 50% when both of the two conditions below are given:
- The total Li of the external circuit (excluding the cable) is ≥ 1% of the Lo value and
- The total Ci of the external circuit (excluding the cable) is ≥ 1% of the Co value
The maximum capacitance allowed shall not be more than Co = 600nF Groups A & B and Co = 1uF Groups C, D, E, F & G.
Note 7
The module is Associated Apparatus and when mounted in the appropriate enclosure (see notes 11 and 13) is suitable for
installation in the following areas:
Non - Hazardous Locations
Class I Division 2 Groups A,B,C and D Hazardous Locations
Note 8
Associated Apparatus must be installed in an enclosure suitable for the application in accordance with the National Electrical Code
(ANSI/NFPA 70) for installation in the United States. Intrinsically safe circuits must be wired and separated in accordance with Article
504.20 of the National Electrical Code (ANSI/NFPA 70) or other local codes, as applicable.
Where multiple circuits extend from the same piece of associated apparatus, they must be installed in separate cables or
in one cable having suitable insulation. Refer to Article 504.30(B) of the National Electrical Code (ANSI/NFPA 70) and
Recommended Practice ISA RP12.6 for installing intrinsically safe equipment.
Note 9
This associated apparatus has not been evaluated for use in combination with another associated apparatus.
Note 10
When installed in Class I Division 2 Hazardous Locations, the module must not be removed or inserted unless the area is known to be
non-hazardous or the power has been removed.
Note 11
Refer to Instruction Manual for further information.
Note 12
WARNING - Substitution of components may impair intrinsic safety or suitability for Class I, Division 2.
Note 13
WARNING - This equipment is suitable for use in Class I, Division 2, Groups A, B, C and D or non-hazardous locations only when
installed in a suitable electrical enclosure.
System Certificate No:
Drn. By
Certifying Authority:
Drn. Date
UL
Title
Installation Drawing for the MTL452X and MTL552X
SOLID EDGE
N/A
1.14
Scale N/A
4
Sheet
Drg. No.
of
4
SCI-1035
A4