YOKOGAWA ProSafe-RS Technical Information

2. Explosion Protection Instrumentation in Zone 2/Division 2
2-6
TI 32S01J30-01E
 Parameters in NI Device Connection
Since giving and receiving energy a󰀨ects NI properties, parameters display is necessary for NI
device connection to ensure the properties. To display parameters, NI devices are divided into
one that gives energy and the other that receives energy.
Power
Supply
+
-
Lc
Cc LiCi
A
B
Device that gives energy
(The source device)
Device that receives energy
(The load device)
F020102E.ai
Displayed parameters
Voc: maximum open-circuit output voltage
Isc: maximum short-circuit output current
Ca: maximum allowable capacitance
La: maximum allowable inductance
Cc: capacitance of the external wiring (circuit) cable
Lc: inductance of the external wiring (circuit) cable
Displayed parameters
Vmax: maximum input voltage
Imax: maximum input current
Ci: maximum internal capacitance
Li: maximum internal inductance
Figure Connection of Non-Incendive Devices and Associated Parameters
 Parameters of the Device which Gives Energy
Voc: maximum open-circuit output voltage
Maximum voltage developed at the open terminal (part) when the Non-Incendive (NI) circuit
is open
Isc: maximum short-circuit output current
Maximum current which ows when the NI is short circuited and earth fault occurs
Ca: maximum allowable capacitance
Maximum capacitance that can be connected to the NI circuit
La: maximum allowable inductance
Maximum inductance that can be connected to the NI circuit
Cc: capacitance of the external wiring (circuit) cable
Lc: inductance of the external wiring (circuit) cable
Dec. 3, 2021-00

YOKOGAWA ProSafe-RS Specifications

General

Brand	YOKOGAWA
Model	ProSafe-RS
Category	Industrial Equipment
Language	English