Baseefa
Rockhead Business Park
Staden lane, Buxton, Derbyshire
SK17 9RZ
United Kingdom
ANNEX to IECEx BAS 12.0099
Issue No. 0
Date: 2012/12/06
1.
Apparatus that may be installed in a Non Hazardous Area (Safe Area)
1.1.
Shunt Zener Diode Safety Barriers or Galvanic Isolators coded [Ex ia Ga] IIC and for connection as
follows:
1.1.1.
To AE Coupler Type 5125C Power Supply (J7)
One (1) Turck Solenoid Driver Type IM72-11Ex/L to IECEx BAS 05.0011X
or
One (1) MTL MTL7722+ Shunt Zener Diode Safety Barrier to IECEx BAS 04.0025
1.1.2.
To AE Coupler Type 5125C 0-10V DC Analog (J11, pins 1 & 2)
One (1) Turck Analogue Data Transmitter Type IM31-11-Ex-U to IECEx TUN 06.0011X
or
One (1) MTL MTL7722+ Shunt Zener Diode Safety Barrier to IECEx BAS 04.0025
1.1.3.
To AE Coupler Type 5125C 4-20mA Analog (J11, pins 3 & 4)
One (1) Turck Analogue Data Transmitter Type IM31-11-Ex-I to IECEx TUN 06.0011X
1.1.4.
To AE Coupler Type 5125C Alarm Switch (J8)
One (1) Turck Isolating Switch Amplifier Type IM1-12Ex-R to IECEx TUN 06.0006X
or
One (1) MTL MTL7710+ Shunt Zener Diode Safety Barrier to IECEx BAS 04.0025
1.2.
The above apparatus is to be supplied from apparatus situated in the safe area which is unspecified
except that it must not be supplied from nor contain in normal or abnormal conditions a source of
potential with respect to earth in excess of 253 volts r.m.s. or 253 volts d.c.
2.
Apparatus that may be installed in a Hazardous Area
2.1.
2.2.
One (1) Acoustic Emission Coupler Type 5125C to IECEx BAS 12.0087X.
One (1) Type 8152C AE Sensor to IECEx BAS 12.0116X.
3.
3.1.
3.1.1.
Permissible Interconnecting Cables
Non-Hazardous Area to Hazardous Area (Barrier / isolator to AE Coupler Type 5125C)
Type 5125C Power Supply (J7)
3.1.1.1. Turck Solenoid Driver Type IM72-11Ex/L
Uo = 17.6V; Io = 96mA; Po = 678mW
The capacitance and either the inductance or the inductance to resistance ratio (L/R) of the
hazardous area cables must not exceed the following values:Group
IIC
IIB
IIA
C
μF
0.333
1.930
8.100
L
mH
3.86
15.43
30.86
Page 1 of 3
OR
L/R Ratio
μH/Ω
52
209
418
Baseefa
Rockhead Business Park
Staden lane, Buxton, Derbyshire
SK17 9RZ
United Kingdom
ANNEX to IECEx BAS 12.0099
Issue No. 0
Date: 2012/12/06
3.1.1.2 MTL MTL7722+ Shunt Zener Diode Safety Barrier
Uo = 22V; Io = 147mA; Po = 0.81W
The capacitance and either the inductance or the inductance to resistance ratio (L/R) of the
hazardous area cables must not exceed the following values:Group
IIC
IIB
IIA
C
μF
0.165
1.140
4.200
L
mH
1.65
7.22
14
OR
L/R Ratio
μH/Ω
44
176
353
3.1.2. Type 5125C 0-10V DC Analog (J11, pins 1 & 2)
3.1.2.1. Turck Analogue Data Transmitter Type IM31-11-Ex-U
Uo = 7.2V; Io = 1mA; Po = 2mW
The capacitance and either the inductance or the inductance to resistance ratio (L/R) of the
hazardous area cables must not exceed the following values:Group
IIC
IIB
IIA
C
μF
13.50
240.0
1000
L
mH
1000
1000
1000
OR
L/R Ratio
μH/Ω
1000
1000
1000
3.1.2.2 MTL MTL7722+ Shunt Zener Diode Safety Barrier
Uo = 22V; Io = 147mA; Po = 0.81W
The capacitance and either the inductance or the inductance to resistance ratio (L/R) of the
hazardous area cables must not exceed the following values:Group
IIC
IIB
IIA
C
μF
0.165
1.140
4.200
L
mH
1.65
7.22
14
OR
L/R Ratio
μH/Ω
44
176
353
3.1.3. Type 5125C 4-20mA Analog (J11, pins 3 & 4)
3.1.3.1. Turck Analogue Data Transmitter Type IM31-11-Ex-I
Uo = 7.2V; Io = 1mA; Po = 2mW
The capacitance and either the inductance or the inductance to resistance ratio (L/R) of the
hazardous area cables must not exceed the following values:Group
IIC
IIB
IIA
C
μF
13.50
240.0
1000
L
mH
1000
1000
1000
Page 2 of 3
OR
L/R Ratio
μH/Ω
1000
1000
1000
Baseefa
Rockhead Business Park
Staden lane, Buxton, Derbyshire
SK17 9RZ
United Kingdom
ANNEX to IECEx BAS 12.0099
Issue No. 0
Date: 2012/12/06
3.1.4. Type 5125C Alarm Switch (J8)
3.1.4.1. Turck Isolating Switch Amplifier Type IM1-12Ex-R
Uo = 9.6V; Io = 11mA; Po = 26mW
The capacitance and either the inductance or the inductance to resistance ratio (L/R) of the
hazardous area cables must not exceed the following values:Group
IIC
IIB
IIA
C
μF
3.60
26.0
210.0
L
mH
290
1000
1000
OR
L/R Ratio
μH/Ω
1000
1000
1000
3.1.4.2 MTL MTL7710+ Shunt Zener Diode Safety Barrier
Uo = 10V; Io = 200mA; Po = 0.5W
The capacitance and either the inductance or the inductance to resistance ratio (L/R) of the
hazardous area cables must not exceed the following values:Group
IIC
IIB
IIA
3.2.
3.2.1.
C
μF
3.00
20.0
100.0
L
mH
0.91
2.72
7.25
OR
L/R Ratio
μH/Ω
71
284
569
Hazardous Area (AE Coupler Type 5125C to Type 8152C AE Sensor)
Type 5125C AE Sensor Out (J4)
Uo = 11.6V; Io = 25.5mA; Po = 74mW
The capacitance and either the inductance or the inductance to resistance ratio (L/R) of the
hazardous area cables must not exceed the following values:Group
IIC
IIB
IIA
3.3.
C
μF
1.59
10.8
43.0
L
mH
54
215
430
OR
L/R Ratio
μH/Ω
480
1925
3855
Wiring to terminals of the safe area apparatus may be achieved by separate cables or by separate
circuits within a Type A or Type B multicore cable (as defined in clause 9 of EN 60079-25:2010)
subject to the following:a.
b.
The circuit to be individually screened when used within a Type A multicore cable.
The peak voltage of any other circuit within a Type B multicore cable must not exceed 60V.
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