Knick Interface LLC Datasheets for Signal Isolators
Signal isolators provide electrical (galvanic) isolation between the input and output circuits. They couple the signal to the output through a transformer or optical isolator. Signal isolators also break the direct electrical (galvanic) path between two or more loop points. They are used to protect against dangerous measured-variable voltages and provide increased protection from surges and spikes.
Signal Isolators: Learn more
| Product Name | Notes |
|---|---|
| Bipolar isolated signal conditoner Input: 0...±20 mA, 0...±10 V (selectable) Output: 0...±20 mA, 0...±10 V (selectable) Continuous isolation (working voltage) 1000 V AC/DC Test voltage 4 kV AC Power supply:... | |
| BL550 set point alarm relay Input: 0/4 ... 20 mA, 0 ... 10 V Output: 1 SPDT relay (changer) Adjustable delay and hysteresis Power supply: 24 V DC (±15%) Working... | |
| BL570 universal signal conditioner Input: adjustable / selectable 0...(±) 20 mV ... 200 V or 0...(±) 0.1 mA ... 100 mA Output: 0... (±) 20 mA, 4 ... 20 mA... | |
| High-Voltage Temperature Transmitter Input: 0...150 °C (RTD) Output: 4 ... 20 mA Continuous isolation (working voltage): 2000 V AC/DC Test voltage: 7.5 kV AC Power supply: 20 ... 253 V... | |
| High-Voltage Temperature Transmitter Input: 0...150 °C (RTD) Output: 4 ... 20 mA Continuous isolation (working voltage): 6600 V AC/DC Test voltage: 15 kV AC Power supply: 20 ... 253 V... | |
| Isolated 4x standard signal multiplier 1 Input: 4 ... 20 mA 4 outputs: 4 ... 20 mA 6-way galvanic isolation at 300V Test voltage 1.5 kV AC Power supply: 24... | |
| Isolated signal doubler Input: 0(4) ... 20 mA, 0 ... 10 V selectable 2 x Output: 0(4) ... 20 mA Continuous isolation (working voltage) 300 V AC/DC Test voltage 1.5... | |
| Loop-powered signal splitter Input: 0/4...20 mA Outputs: (2x) 0/4 … 20 mA Continuous isolation (working voltage): 600 V AC/DC Test voltage 5.4 kV AC Functional safety: up to SIL 3... | |
| Loop-powered universal isolator, one-channel Input: 0/4...20 mA Output: 0/4...20 mA Continuous isolation (working voltage): 600 V AC/DC Test voltage 5.4 kV AC Functional safety: up to SIL 3 | |
| Loop-powered universal isolator, two-channel Inputs: (2x) 0/4...20 mA Outputs: (2x) 0/4...20 mA Continuous isolation (working voltage): 600 V AC/DC Test voltage 54 kV AC Functional safety: up to SIL 3... | |
| Repeater Power Supply Input (current loop): 4 ... 20 mA Supply voltage to transmitters: 16.5 V constant for 3...22 mA Output: 4...20 mA, 0...20 mA, 0...10 V Bidirectional HART data... | |
| Resistance transmitter Input: 200 Ohms… 500 kOhms Output: 0…20 mA, 4…20mA, 0…5V, 0…10V (selectable) Range and Units Adjustable via switches Continuous isolation (working voltage): 300 V AC/DC Test voltage: 2.5... | |
| Standard high isolation signal conditioner Input: 0/4 ... 20 mA, 0 ... 10 V (selectable) Output: 0/4 ... 20 mA, 0 ... 10 V (selectable) Continuous isolation (working voltage) 1000... | |
| Standard isolated signal conditioner slim 6-mm housing class Input: 0/4 ... 20 mA, 0 ... 10 V (selectable) Output: 0/4 ... 20 mA, 0 ... 10 V (selectable) Continuous isolation... | |
| Strain Gauge transmitter Input: Strain Gauge and Load Cells (+/- 7.5 mV/V) Output: 0…20 mA, 4…20mA, 0…5V, 0…10V (selectable) Range and Units Adjustable via switches Continuous isolation (working voltage): 300... | |
| Universal Isolator Type H1: pluggable screw clamp terminals Input: adjustable resp. selectable 20 mV ... 200 V or 0.1 mA ... 100 mA unipolar/bipolar Output: 10 V， 20 mA， 5... | |
| Universal Speed Signal Doubler Pulse transducer with available DOT detection Input: current pulses 7/20 mA or 7/14 mA voltage pulses 0/10 ... 33 V Input frequency 0 ... 25 kHz... |