1. Summary
Pors-SAK11 receives signal of switch contact or proximity sensor from Hazardos area, through isolated transmitting, exports signal of relay contact, electric level or transistor to control system or other instruments in safe area;
Adopt independent power supply; power, input and output are isolated each other;
2. Technical index
◆ Input (Hazardous area)
Passive input: pure switch or NAMUR proximity sensor (compliance with DIN19234)
Active signal: input > 2.1mA: ON
input <1.2mA: OFF
Open circuit voltage: 8V+/-0.5V
Short circuit current: around 4mA
Switch Threshold: around 1.55mA
Hysteresis: 0.2~0.4mA
◆ Output (Safe area)
A: Relay contact: Single-pole switching relay
Contact point: 24VDC, 2A;
Load: resistive load;
Response time: ≤10ms
B: Electric level
High level: 4.5V~5.5V, drive capacity: ≤20mA
Low level: ≤0.5V
C: Transistor
External power supply ≤40V,
Drive output current ≤40mA
Collector output: high level: VCC; low level: ≤2.5mA
Emitter output: high level: VCC-2.5V; low level: ≤0.5V
◆ Intrinsical safe parameters
Explosion-proof: [Exia] II C
Max. allowed voltage Um: 250V
Max. open circuit voltage Uo: 11V
Max. short circuit current Io: 15mA
Max. external inductance Lo: 10mH
Max. external capacitance Co: 1.4uF
◆ Environmental parameters
Power supply: 20-30VDC
Consumption: <25mA (when power supply is 24VDC)
Power indicator: Green LED
Operating temperature: -20-+60℃
Operating humidity: 0-95%RH (no condensation)
◆ Performance index (to full span)
Temperature drift: ±0.015%/℃
Response time: ≦10ms
Isolated strength: input-output-power 1.5kV, 1min, 50Hz
Insulation resistance: input-output-power ≧100MΩ/500VDC
Start up time: ≦3s
Pors-SAK11 receives signal of switch contact or proximity sensor from Hazardos area, through isolated transmitting, exports signal of relay contact, electric level or transistor to control system or other instruments in safe area;
Adopt independent power supply; power, input and output are isolated each other;
2. Technical index
◆ Input (Hazardous area)
Passive input: pure switch or NAMUR proximity sensor (compliance with DIN19234)
Active signal: input > 2.1mA: ON
input <1.2mA: OFF
Open circuit voltage: 8V+/-0.5V
Short circuit current: around 4mA
Switch Threshold: around 1.55mA
Hysteresis: 0.2~0.4mA
◆ Output (Safe area)
A: Relay contact: Single-pole switching relay
Contact point: 24VDC, 2A;
Load: resistive load;
Response time: ≤10ms
B: Electric level
High level: 4.5V~5.5V, drive capacity: ≤20mA
Low level: ≤0.5V
C: Transistor
External power supply ≤40V,
Drive output current ≤40mA
Collector output: high level: VCC; low level: ≤2.5mA
Emitter output: high level: VCC-2.5V; low level: ≤0.5V
◆ Intrinsical safe parameters
Explosion-proof: [Exia] II C
Max. allowed voltage Um: 250V
Max. open circuit voltage Uo: 11V
Max. short circuit current Io: 15mA
Max. external inductance Lo: 10mH
Max. external capacitance Co: 1.4uF
◆ Environmental parameters
Power supply: 20-30VDC
Consumption: <25mA (when power supply is 24VDC)
Power indicator: Green LED
Operating temperature: -20-+60℃
Operating humidity: 0-95%RH (no condensation)
◆ Performance index (to full span)
Temperature drift: ±0.015%/℃
Response time: ≦10ms
Isolated strength: input-output-power 1.5kV, 1min, 50Hz
Insulation resistance: input-output-power ≧100MΩ/500VDC
Start up time: ≦3s