启栅（上海）自动化设备有限公司供应倍加福安全栅，提供技术支持，欢迎来电咨询。
热电阻安全栅KCD2-RR-EX1,单通道，允许安装在危险区Zone2，工作电压为24V，精度达0.1%。将2/3/4线制热电阻信号（如：PT100，PT500，PT1000等）从危险侧传递到安全侧，处于安全区的转换器可以2/3/4线制方式接收电阻信号。
转换器输出一个检测电流通过热电阻中继器传送到危险区，并在热电阻上产生压降，这个压降通过热电阻中继器传回安全区。这样就可以在中继器的输出端测出当前热电阻的阻值。电阻中继器允许测量电流。
主要应用于危险区热电阻和安全区转换器之间的信号隔离。
热电阻安全栅KCD2-RR-EX1技术参数
Signal type Analog input
Functional safety related parameters
Safety Integrity Level (SIL) SIL 2
Supply
Connection Power Rail or terminals 9+, 10-
Rated voltage Ur 19 ... 30 V DC
Ripple within the supply tolerance
Rated current Ir < 20 mA
Power consumption 0.35 W (24 V and 1 mA sense current)
Input
Connection side field side
Connection terminals 1, 2, 3, 4
Line fault detection yes , at Pt100
Lead resistance ≤ 10 % of resistance value
Transmission range 0 ... 10 mA
Available voltage 9 V
Line fault detection 8 nA
Output
Connection side control side
Connection terminals 5-, 7-, 6+, 8+
Current 0 ... 10 mA
Available voltage 0 ... 4.2 V
Fault signal < 10 Ω or > 400 Ω, depending on lead disconnected (measuring current ≤ 1 mA)
> 400 Ω, terminal 3 lead disconnected in 2-/4-wire (measuring current ≤ 0.3 mA)
Transfer characteristics
Accuracy 0.1 %
Deviation 4-wire
Im ≥ 1 mA: ±0.1 % of Rm or ± 0.1 Ω (the larger value is applicable)
Im < 1 mA: accuracy reduces in proportion to Im.
e. g. Im = 0.1 mA: ± 1 % of Rm or 1 Ω (the larger value is applicable).
3-wire
Im ≥ 1 mA: (±0.1 % - 0.1 Ω Offset) or ± 0.2 Ω (the larger value is applicable)
Im < 1 mA: accuracy reduces in proportion to Im.
e. g. Im = 0.1 mA: (±1 % - 0.1 Ω Offset) or ± 1.1 Ω (the larger value is applicable)
Influence of ambient temperature Im ≥ 1 mA, Rm ≥ 100 Ω : 0.01 %/K in the range -20 ... +60 °C (253 ... 333 K)
Im < 1 mA or Rm < 100 Ω: temperature stability reduces in proportion to Im or Rm
Rise time signal response time ≤ 2 ms (10 ... 90 %)
response to application of Im: Rm > 50 Ω and Im < 5mA: < 5ms
response to application of Im: Rm > 30 Ω and Im < 5mA: < 10ms
response to application of Im: Rm > 18 Ω and Im < 5mA: < 20ms
启栅（上海）自动化设备有限公司
启栅（上海）自动化设备有限公司
