BM100 Signal Isolator
Overview
Appearance
BM100 series signal isolators measure DC current, DC voltage, Pt100 RTD or resistance inputs and output a standard isolated analog signal. They connect directly to panel meters, PLCs, DCS, A/D converters and computer systems in power, rail, petrochemical, metallurgy and chemical plants.
Transmission accuracy
0.2%
Response time
5 ms to 90%
Channel forms
1-in/1-out, 1-in/2-out, 2-in/2-out
Supply
20-35 V DC or 85-265 V AC/DC
Technical data
| Parameter | Value (from the product manual) |
|---|---|
| Input type | Current / voltage / Pt100 thermal resistance / resistance |
| Input signal | DC 0-20 mA, 4-20 mA, 0-5 V, 1-5 V, 0-10 V, Pt100, 0-10 kOhm |
| Minimum span | Pt100 50 C; resistance input 1 kOhm |
| Current output | DC 0-20 mA / 4-20 mA, load resistance 550 Ohm or less |
| Voltage output | DC 0-5 V / 1-5 V (load 330 kOhm or more); DC 0-10 V / 2-10 V (load 500 kOhm or more) |
| Load with RTD or resistance input | 30 kOhm or more |
| Transmission accuracy | 0.2% |
| Temperature coefficient | 50 ppm/C; 100 ppm/C for voltage output |
| Response time | 5 ms to 90% of final value; 1 s for Pt100 and resistance input |
| Supply voltage | 20-35 V DC or 85-265 V AC/DC |
| Dielectric strength | 1500 V AC / 1 min between input, output and power supply |
| Case width | B type 12.5 mm; C type 22.5 mm |
| Fix mode | Rail installation |
| Working temperature | -20 to +60 C |
| Input excitation note | Two-wire and three-wire inputs need 14 V or more at 20 mA |
Ordering code and typical models
| Position | Meaning |
|---|---|
| Input | DI = DC current, DV = DC voltage, TR = Pt100 RTD, VR = potentiometer, S = output power distribution |
| Output | I = DC current, V = DC voltage |
| Case | B = 12.5 mm, C = 22.5 mm |
| Channels | 11 = one in one out, 12 = one in two out, 22 = two in two out |
| Example | BM100-DI/I-B11: current in, current out, 12.5 mm case, one channel |
| Example | BM100-DIS/I-B11: current in with isolated loop supply to the transmitter |
| Example | BM100-TR/V-C12: Pt100 in, two voltage outputs, 22.5 mm case |
| Example | BM100-DV/V-C22: two voltage in, two voltage out, 22.5 mm case |
Built-in functions
- Galvanic isolation between input, output and supply on every channel
- Loop-powered (S) and isolated-transmitter-supply (IS / DIS) versions available
- Split one measurement into two independent outputs for PLC and local meter
- Standard signals only, so no configuration software is required at the panel
- 24 V DC or 220 V AC supply versions; front panel carries the wiring layout
Before you request a quote
- Input: signal type and measurement range
- Output: one or two channels, current or voltage
- Supply: 24 V DC or 85-265 V AC/DC
Tell us the input signal and range, the output signal, the number of channels and whether the transmitter needs loop power; we confirm the exact BM100 code and the wiring diagram within one working day.
|
Channel type |
Single-way input and single-way output, single-way input and double-way output, double-way input and double-way output |
|
Input type |
Current/Voltage/Thermal resistance Pt100/Resistance |
|
Input signal |
DC 0~20mA /4~20mA DC 0~5V /1~5V /0~10V Pt100(Minimum range: 50℃) 0~10KΩ(Minimum range: 1KΩ) |
|
Output signal |
DC 0~20mA /4~20mA ; Load resistance: ≤550Ω DC 0~5V /1~5V; Load resistance: ≥330KΩ Load resistance: ≥30KΩ(Pt100/Resistance input) DC 0~10V /2~10V; Load resistance: ≥500KΩ Load resistance: ≥30KΩ(Pt100/Resistance input) |
|
Transmission accuracy |
0.2% |
|
Temperature modulus |
50ppm/℃ (Voltage output: 100ppm/℃) |
|
Response time |
5ms to reach 90% of final value (RTD Pt100/resistance input: 1s to reach 90% of final value) |
|
Power supply |
20~35V DC or 85~265V AC/DC |
|
Work temperature |
-20℃~+60℃ |
|
Fix mode |
Rail installation |
|
Dielectric strength |
≥1500V AC/1 min (Among input//output//power supply) |
