burkert 8311帶顯示屏壓力傳感器 囯與 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帶顯示屏壓力傳感器 囯與 burkert

這種智能微型傳送器/開關具有一個特大號顯示器，特別適合監控極限值或者 On/Off 或持續型調節電路。可在顯示屏上利用三個按鍵對不同的調節值進行編程。另外，可借助于一個 4-20 mA 信號將工藝值傳送到 PLC 上。通過標準結構進行工藝連接 (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)