EM-M11A is a configurable analog signal converter and isolator for commonly used industrial automation signals. It supports both voltage and current inputs and can convert them into a selected voltage or current output signal.
Five input ranges can be freely combined with five output ranges, providing up to 25 signal-conversion combinations. Input, output and supply circuits are galvanically isolated from one another.
The EM-M11A supports the following conversion types:
All conversions include galvanic isolation between the input and output circuits.
The input range is configured using DIP switches. Available ranges are:
The voltage input impedance depends on the selected range. Both current input ranges use a 50 Ω input resistance.
The output can be independently configured for any of the following ranges:
The voltage outputs are intended for loads greater than 1 kΩ. The current outputs can drive a load resistance of up to 700 Ω.
The signal bandwidth can be selected between 20 Hz and 1 kHz. The 20 Hz setting can be used to reduce high-frequency noise in slowly changing process signals, while the 1 kHz setting provides a faster response for dynamic signals.
Separate zero and gain adjustments are provided, each with an adjustment range of ±20%. The adjustments are designed so that changing one setting does not significantly affect the other.
The input, output and supply circuits are galvanically isolated from one another. The specified isolation voltage is 1000 V between the isolated circuit sections.
| Operating voltage | 20–32 V |
|---|---|
| Maximum current consumption | 70 mA |
| Linearity error | < 0.1% |
| Thermal drift | < 50 ppm/°C |
| Voltage input range 1 | 0–1 V, Rin = 50 kΩ |
| Voltage input range 2 | 0–5 V, Rin = 250 kΩ |
| Voltage input range 3 | 0–10 V, Rin = 500 kΩ |
| Current input range 1 | 0–20 mA, Rin = 50 Ω |
| Current input range 2 | 4–20 mA, Rin = 50 Ω |
| Voltage output range 1 | 0–1 V, RL > 1 kΩ |
| Voltage output range 2 | 0–5 V, RL > 1 kΩ |
| Voltage output range 3 | 0–10 V, RL > 1 kΩ |
| Current output range 1 | 0–20 mA, RL < 700 Ω |
| Current output range 2 | 4–20 mA, RL < 700 Ω |
| Selectable frequency response | 0–20 Hz or 0–1 kHz |
| Gain adjustment | ±20% |
| Zero adjustment | ±20% |
| Isolation voltage | 1000 V between input, output and supply circuits |
| Operating ambient temperature | 0 … +60 °C |
Ordering larger quantities +100pcs.
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