Yokogawa RAKD User Manual
Page 62
<8. EXPLOSION-PROTECTED TYPE INSTRUMENTS>
8-16
IM 01R01B30-00E-E 5th edition January 01, 2013 -00
All Rights Reserved. Copyright © 2003, Rota Yokogawa
8.8 Intrinsically safe NEPSI (China) certified RAKD (/NS1)
Certificate No.
: GYJ101552
Type of protection
: Intrinsically safe Ex ia
Group
: IIC
Temperature Class
: T6
Ambient temperature
: -25°C ... +65 °C
Safety relevant maximum values of electronic transmitter :
Maximum voltage
: U
i
= 30 V
Maximum current
: I
i
= 100mA
Maximum power
: P
i
= 750 mW
Inner inductance
: L
i
= 0.73 mH
Inner capacity
: C
i
= 2.4nF
Pulse output:
Maximum voltage
: U
i
= 16 V
Maximum current
: I
i
= 20 mA
Maximum power
: P
i
= 64 mW
Inner inductance
: L
i
= 0 mH
Inner capacity
: C
i
= 0nF
Data of limit switches option /K1 to /K10 :
The following table shows the maximum safety parameters for intrinsic safe limit switches according the certificate
NEPSI GYJ06542X :
Standard
/K1 ... /K3
Fail Safe
/K6 ... /
K10
Type 2
Type 3
Type 2
Type 3
Ui [V]
16
16
16
16
Ii [mA]
25
52
25
52
Pi [mW]
64
169
64
169
Li [µH]
150
150
250
250
Ci [nF]
150
150
50
50
Max. ambient temperature for T6 [°C]
66
45
66
45
Max. ambient temperature for T5 [°C]
81
60
81
60
Max. ambient temperature for T4-T1 [°C]
100
89
100
89