Beemet Laboratory Desktop instruments are specially designed for easy use in educational institutes and laboratories. These meters are offered with anti-parallax mirror for clear & precise reading.
Salient Features
• BEEMET Portable Desktop meters are ideal for use as teaching material and for experiments.
• Meters are inclined for easy reading & amp; mounted on ABS plastic moulded desk type stand with connections on top terminals.
General Specifications
| Accuracy | ±2.0 of FSD |
| Measurable Quantities | AC and DC Voltage or Current |
| Pointer deflection | 0 - 90º |
| Frequency | 50/60Hz |
| Sensitivity | 1000Ω/V (Voltmeter); 200Ω/V (ammeter) |
| Overload Capacity | According to IS: 1248 / IEC 51 |
| Short duration for voltmeter | 2 times for 5s: 1 overload 2 times for 0.5s: 9 overloads |
| Short duration for ammeter | 10 times for 5s: 1 overload 10 times for 0.5s: 9 overloads |
| Continiously | 1.2 times rated voltage or current |
| Operating Temperature | -10 to 55°C |
| Storage Temperature | -25 to 65°C |
| Relative Humidity | < 75% annaul average, non-condensing |
Range Chart
| Model | Description | Electrical Quantities | |
|---|---|---|---|
| EDM – I | DC Moving Coil | Ammeter 1A – 30A Microammeter 25μA – 1000μA Milliammeter 1mA – 1000Am Voltmeter 1V – 600V Millivoltmeter 10mV – 1000mV Galvanometer 30– 0– 30 & 50– 0– 50 |
|
| EDM-II | AC Moving Coil Rectifier | ||
| EDM-III | AC Moving iron | ||
Wiring Diagrams
DC Moving Coil Voltmeter and Ammeters:
AC Moving Coil Voltmeter and Ammeters:
