YOKOGAWA RAKD series, User Manual, Page: 61 / 72

<8. EXPLOSION-PROTECTED TYPE INSTRUMENTS>
8-17
IM 01R01B30-00E-E 6th edition October 01, 2014 -00
All Rights Reserved. Copyright © 2003, Rota Yokogawa
8.7 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 :
Table 8-3
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