burkert 8311带显示屏压力传感器 囯与 burkert This inligent mini transmitter/switch with an extra-large display is specially designed to switch alarms and to establish a monitoring system or an On/Off control loop

burkert 8311带显示屏压力传感器 囯与 burkert

这种智能微型传送器/开关具有一个特大号显示器，特别适合监控极限值或者 On/Off 或持续型调节电路。可在显示屏上利用三个按键对不同的调节值进行编程。另外，可借助于一个 4-20 mA 信号将工艺值传送到 PLC 上。通过标准结构进行工艺连接 (G1/2、NPT1/2、Rc1/2)。

Power supply 12-30 V DC , filtered and regulated
Overvoltage protection Yes, for power supply and for transistor outputs
Current consumption
 Transmitter 2-wire version
 Switch version
< 30 mA (+700 mA max. per transistor output used)
< 750 mA (with load - PNP output configuration)
< 80 mA (with load - Relay version)
Output
 Transmitter 2-wire version
 Transistor (programmable)
 Process value
 Switch version
 Transistor (programmable)
 Optional relay (programmable)

open collector, 2 NPN or 2 PNP, 700 mA max.,
NPN: [(V+) minus 0.5 VDC] - 0 VDC
PNP: 0.5 VDC - (V+)
protected against short circuit
4-20 mA, Loop resistance: 800 ? at 30 V DC,
550 ? at 24 V DC, 300 ? at 18 V DC
(For more details, see instruction manual)
open collector, NPN / PNP, 700 mA max.,
NPN: 0.2 - 30 VDC ; PNP: (V+)
protected against short circuit
Normally open/normally closed
3 A / 250 V AC or 3 A / 30 V DC (relay)