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DEM074RF
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| SINGLE PHASE ELECTROMECHANICAL FRONT BOARD INSTALLED ACTIVE ENERGY METER |
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| Application |
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Model DEM074RF single phase electromechanical front board setting active energy meter is a kind of new style single phase two wire active energy meter, it is designed on the basis of original DD282 single phase electromechanical meter, and fully absorb new technologies about electromechanical meter from domestic and abroad. The meter completely accord with relevant technical requirements of class 2 single phase active energy meter stipulated in international standard IEC 62053-11. It can accurate and directly measure 50Hz or 60Hz active energy consumption from single phase AC electricity net, it is use for setting indoor or out door meter box. The meter has novel design, rational structure, and it can display total energy consumption by drum wheel mechanical register. It has following features: compact structure design, small size, economy benefits, specious appearance, etc.
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| Functions and features |
Front board three fixed installation, the cover is made of quality of aluminum which is after anti-oxidation treatment and has a transparent glass window molded overall, the bottom of the meter is made of quality steel which is after double-through antirust processing, and the terminal is made of quality bakelite material which is moisture-resistant, fire-retardant, high temperature molded overall. It has following features: good weather ability, specious appearance, etc.
The meter frame adopt aluminum molding with excellent mechanical strength, stable structure and anti-impact.
Voltage components and current components is used of double insulation structure, has good electrical characteristics.
Standard configuration voltage circuit and current circuit connect in the case, may select connect outside. (Please specified when ordering).
Standard configuration bottom bearing is used of double gem bearing, oriented bearing is made of high wear resistance copper alloy bush and stainless steel needle. It has following features: long life and minimal friction, etc. May select magnetic thrust bearing (Product Configuration code is RB) or single-precious stone bearing (Product Configuration code is RJ).
All kinds of error adjustment mechanism adopt no step shifting mechanism. The meter starting and creeping needn’t to be adjusted which is finished by anti-creeping hole of disc and convenient for adjusting by users.
Standard configuration 5 digits display by drum wheel mechanical register, may select 6 digits display by drum wheel mechanical register (Product Configuration code is RH).
Standard configuration without the device which can prevent retrograde, may select add the function of prevent retrograde. (Please specified when ordering).
Single component measure single phase two wire active energy consumption. Complying with standard IEC 62053-11.
Direct connect operation, there are two types wiring you may select. Standard configuration type 1A wiring, may select type 1B wiring (Product Configuration code is RE).
Extension terminals cover, in order to protect to use safety. |
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| Technical parameters |
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Model
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Accuracy
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Reference
voltage (V)
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Current
specifications (A)
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Starting
current (A)
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Insulation
performance
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DEM074RF
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Class 2
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127
230
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10(20)
20(40)
30(60)
40(80)
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0.05
0.1
0.15
0.2
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AC voltage 2kV for 1 minute,
1.2/ 50us waveform
impulse voltage 6kV
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| *If you need different reference voltage or current specification, please advisory our sales. |
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| Outer and mount dimension |
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| Wiring diagram (Type 1A) |
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Terminal
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Note
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| 1 |
Inlet phase line |
| 3 |
Inlet neutral line |
| 4 |
Outgoing neutral line |
| 5 |
Outgoing phase line |
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