ELMA MS 4202
The Elma MS 4202 is a small, handheld calibration instrument for current and voltage signals. It is used to simulate, check, or measure signals in connection with transducers, transmitters, and other process equipment. In practice, this means that the instrument can function as both an active and passive simulator, depending on the task at hand.
It is especially useful when testing a circuit without connecting it as if in operation. Here, the Elma MS 4202 can deliver a variable signal of 0...22 mA or 0...10 V, and it also has fixed settings for 4 mA / 20 mA and 2 V / 10 V. At the same time, it can measure 0–22 mA and 0–25 V DC, and both the set and measured values are shown on the monochrome LCD display.
The instrument is designed for field use and is therefore compact and battery-powered. It connects via 4 mm banana plugs, and there is an option for a power adapter if it needs to be left in a workshop or test area for an extended period. All terminals are protected against overvoltage, incorrect polarity, and short circuits, which is a practical detail in daily use.
On the front, operation is kept simple with rotary switches and adjustment via a knob, allowing for quick switching between function and range. With a size of 165 x 80 x 30 mm, it is easy to carry around.
Typical applications
- Calibration and checking of transducers
- Simulation of current and voltage signals
- Testing of 2-wire transmitters in passive function
- Measurement of current and DC voltage in service and troubleshooting
Specifications
- Model: ELMA MS 4202
- MPN: 6398739003
- EAN: 5706445739004
- Function: active and passive simulator as well as current and voltage measurement
- Signal range, output: 0...22 mA and 0...10 V DC
- Fixed settings: 4 mA / 20 mA and 2 V / 10 V
- Signal range, measurement: 0–22 mA and 0–25 V DC
- Display: monochrome LCD
- Connection: 4 mm banana plugs
- Power supply: 4 x AAA / LR03 batteries
- Power adapter: possibility of connection
- Dimensions: 165 x 80 x 30 mm
- Weight: 250 g
- Operating temperature: -20 °C to +50 °C
- Accuracy: +/- 0.2 %
- Resolution: 0.01 mA / 0.01 V
- See datasheet from the manufacturer
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