RM SERIES

RM SERIES

DRM-65

DRM-83

DRM-106

DRM-120

Beemet RM series meters manufactured in both Moving Coil and Moving Iron type, are designed for rear panel mounting. This design feature improves panel appearance. The base is made of ABS plastic material which has high tracking index for maximum strength and safety.

• Powerful and stable Alnico Magnets.
• Polished Carbon Steel Pivots.
• Jewelled Bearings for maximum accuracy.
• Phosphor Bronze Springs.
• Air tight and anti-static cases.

Salient Features

• Rugged movement ensures sustained accuracy and reliability.
• Features modern design front optically clear polycarbonate cover.
• Clear and well-defined dial markings with knife edge pointer.
• Confirms to IS. 1248-83 standards.

General Specifications

Accuracy ±1.5 / 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 overload
Short duration for ammeter 10 times for 5s: 1 overload
10 times for 5s: 9 overload
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 Ammeter Voltmeter
DRM – 65, 83, 106, 120 DC Moving Coil 25μA – 60A,
1A – 10000A*
10mV – 600V
ARM – 65, 83, 106 AC Moving Iron 10mA – 100A,
1A - 10000A**
10V – 600V
SRM – 65, 83, 106, 120 AC Moving Coil Rectifier 1mA – 20A 1V – 600V

* With external Shunt      ** With external CT

Dimensions

Model Dimensions (mm) Scale Length
A B C D E E' F G G' H J K K' L M
DRM-65 2.5 10 27 55 65 65 25 62.5 32.5 38 36 24 24 7 3.5 60
DRM-83 3 10.5 25 65 63 83 83 76 38 35 41.5 35 35 7 3.5 75
DRM-106 4 12 27 65 48 106 84 98.5 50 33 44 35 35 7 3.5 77
DRM-120 3 12 27 70 60 120 102 115 55 32.5 44.5 50 65 7 3.5 100

DCF-80, 80R, 106

Wiring Diagrams

DC Moving Coil Voltmeter and Ammeters: 

Voltmeter with direct connection
Ammeter with direct connection
Ammeter with Shunt

AC Moving Coil Voltmeter and Ammeters: 

Voltmeter with direct connection
Voltmeter with PT
Ammeter with direct connection
Ammeter with CT