Voltage Repeater
KFD2-VR4-Ex1.26
* 24 V DC supply (Power Rail)
* Voltage input 0 V ... -20 V
* Vibration sensor inputs
* Voltage/current field supply
* Voltage output 0 V ... -20 V
* Up to SIL 2 acc. to IEC/EN 61508
| Brand Name: | P+F, P+F |
| Model Number: | KFD2-VR4-EX1.26 |
| MOQ: | 1 piece |
| Price: | $75-80 / piece |
General specifications | ||||
Signal type | Analog input | Digital Input | ||
Functional safety related parameters | ||||
Safety Integrity Level (SIL) | SIL 2 | SIL 2 | ||
Supply | ||||
Connection | Power Rail or terminals 11+, 12- | |||
Rated voltage | Ur | 19 ... 30 V DC | ||
Ripple | within the supply tolerance | |||
Power dissipation | ≤ 1.2 W | |||
Power consumption | ≤ 1.6 W | |||
Input | ||||
Connection side | field side | |||
Connection | terminals 4 (common), 1, 3 and 5 (supply -), 2 and 6 (signal -) | |||
Input resistance | 10 kΩ terminals 4 (common), 6-/2- | |||
Output rated operating current | terminals 4 (common), 5-: > 10 mA at -21 V or > 20 mA at -18 V terminals 4 (common), 1-: 5.3 mA ±0.4 mA at -10 V terminals 4 (common), 3-: 3.6 mA ±0.7 mA at -10 V, 20 °C (68 °F) | |||
Transmission range | -20 ... 0 V | |||
Output | ||||
Connection side | control side | |||
Connection | terminals 7-, 8+ | |||
Voltage | -20 ... 0 V | |||
Load | ≥ 9 kΩ (3-wire sensor), ≥ 2 kΩ (2-wire sensor) | |||
Output resistance | 24 Ω typ., 27 Ω maximum Since this is much less than the end-to-end resistance of a zener barrier, it may be necessary to specify a monitor intended for use without a barrier. Please follow the advice of the monitor manufacturer. | |||
Transfer characteristics | ||||
Cut-off frequency | 10 kHz (-0,1 dB) 20 kHz (-1 dB) | |||
Deviation | DC transfer error (with 10 kΩ load) < 10mV | |||
After calibration | additional error with AC superimposed is ±5 mV at 20 °C (68 °F) at any point within the span, provided that the alternating component of the input voltage is not excessive, e. g. - square waves (0 ... 20 kHz): 5 Vpp - sine waves (0 ... 20 kHz): the full span of 20 Vpp (= 100 g peak acceleration at 100 mV/g) is acceptable. | |||
Influence of ambient temperature | (< 100 ppm of span)/K at any point within the span | |||
Time delay relative to input | 7.1 ±0.3 µs | |||
Ripple | in 200 kHz bandwidth < 20 mVrms in 20 kHz bandwidth < 3 mVrms | |||