Details

Application

1. Purposed:
a) For display only.
b) For control of system Hi-Lo setting values.
c) For analog or digital signal output. For central control or SCADA system 
application.

2. Measured signals:
a) Voltage or Current.
b) AC or DC

3. Measuring range: For industrial system, the signal should very small such as mV, mA etc., and for power system purposed should be input V or A. The measuring display and output ranges are determined as required.

4. Input range: The meter input range can be accept from minimum mV to maximum V as required. Input can be accepted various and floating signal, and the terminals are all isolated from the external case, aux. power and input/output circuit.

5. Output range: AC&M has wide output range for available, various analogs 4~20mA or 1~5V etc., and RS-485 digital output.

a) For power system application, watthour and varhour has pulse output, based on the photo couple theory.
b) For Hi-Lo alarm setting functions, provide two SPDT setting points to trip or alarm the faulty system. The relay capacity has 120V, 5A continuous load.
c) For SCADA and central control systems, analog and digital output can be available, These meters combined with the traditional connection which has one display and one transducer separately.

6. Operation environment: The meter can be used under normal room temperature from -10’C to +55’C and relative humidity between 20 to 95 %.

AC Current (DMA)

Class 0.15% – Digital Ammeter 
Ave Rms or True Rms Display 
Optional : 2 Relay contact and Signal Output 
Dual Aux. Power 110/220V AC 

AC Voltage (DMV)

Class 0.15% – Digital Voltage Meter 
Ave Rms or True Rms Display 
Optional : 2 Relay contact and Signal Output 
Dual Aux. Power 110/220V AC 

AC Volt, Current & Frequency (DMVA)

Class 0.2% – 3 in one Digital Meters 
Digital Voltmeter, Ammeter & Frequency Meter 
Optional : Alarm Setting and Signal Output 
Dual Aux. Power 110/220V AC 

Reactive Power (DMQ)

Class 0.2% – Digital Var Meters 
Single Phase or 3 Phases Watt Display 
Bi-Directional 
Optional : Signal Output 
Dual Aux. Power 110/220V AC 

Power Factor (DMPF)

Class 0.2% – Digital Cos θ Meters 
Single Phase or 3 Phases 
Optional : Signal Output 
Dual Aux. Power 110/220V AC 

Active Power (DMW)

Class 0.2% – Digital Watt Meters 
Single Phase or 3 Phases Watt Display 
Unit Direction or Bi-Directional 
Optional : Signal Output 
Dual Aux. Power 110/220V AC 

Energy (DMWH)

Class 0.2% – Digital Energy Meters 
Single Phase or 3 Phases 
Unit Direction or Bi-Directional 
Optional : Signal Output – Pulses, RS485 or Others 
Dual Aux. Power 110/220V AC 

Reactive Varhour (DMQH)

Class 0.2% – Digital Var-Hour Meters 
Single Phase or 3 Phases 
Bi-Directional 
Optional : Signal Output 
Dual Aux. Power 110/220V AC

Active Power & Energy (DMWWH)

Class 0.2% – Digital Watt & Watt-Hour Meters 
Single Phase or 3 Phases 
Unit Direction or Bi-Directional 
Optional : Signal Output 
Dual Aux. Power 110/220V AC 

Reactive Power & Energy (DMQQH)

Class 0.2% – Digital Reactive Power & Energy Meters 
Single Phase or 3 Phases 
Bi-Directional 
Optional : Signal Output 
Dual Aux. Power 110/220V AC 

Frequency (DMF)

Class 0.02% – Digital Frequency Meters 
Optional : 2 Relay contact and Signal Output 
Dual Aux. Power 110/220V AC 

Multi-Power Meter (DMMP)

Class 0.2% – Digital Multifunction Power Meters 
All in one at a glands 
Display 3V,3A, 3W, W, Var, WH, VarH, PF, Hz, Harmonics 
Optional : 4 Relay contact and 4 Signal Output 
Dual Aux. Power 110/220V AC 

Multi-Power Meter (DMPW)

Class 0.2% – Digital Multifunction Power Meters 
Display 3V,3A, W, Var, WH, VarH, PF, Hz, Harmonics 
Optional : Alarm and Signal Output 
Dual Aux. Power 110/220V AC 

DC Current Loop Rated (DMS)

Class 0.04% – Digital Display Meter 
Wide Range of DC input Current – Corresponding to the required display Range. 
User Programmable 
Optional : 2 Relay contact and Signal Output 
Dual Aux. Power 110/220V AC 

DC Voltage or Current Meter (DME)

Class 0.04% – Digital Display Meter 
Wide Range of DC input Voltage or Current – Corresponding to the required 
display Range. 
User Programmable 
Optional : 2 Relay contact and Signal Output 
Dual Aux. Power 110/220V AC 

Temperature RTD Meter (DMR)

Class 0.15% – Digital Temperature Meter 
PT or CU input – Corresponding to the required display Range. 
User Programmable 
Optional : 2 Relay contact and Signal Output 
Dual Aux. Power 110/220V AC 

Temperature & Controller Meter (DMTC)

Class + – 1 ° C – Digital Temperature Meters 
3Wire PT input 
Temperature display, Fan Operation, Alarm and skip 
Optional : Signal Output & 3 Relay Contacts 
Dual Aux. Power 110/220V AC

Thermocouple (DMT)

Class 0.15% – Digital Temperature Meters 
Thermocouple Input: K, E, J, T, R, S, B… type 
Optional : Signal Output & Relay Contacts 
Dual Aux. Power 110/220V AC 

Load Cell, Strain Gauge (DMB)

Class 0.1% – Digital Weight Meters 
Optional : Signal Output & Relay Contacts 
Dual Aux. Power 110/220V AC 

RPM, Speed, Pulse (DMU)

Class 0.01% – Digital RPM, Speed, Pulse, Length, Fluid Meters 
Optional : 2 Relay contact and Signal Output 
Dual Aux. Power 110/220V AC 

Potentiometer (DMP)

Class 0.1% – Digital Potentiometer, Level, Position Meters 
Optional : 2 Relay contact and Signal Output 
Dual Aux. Power 110/220V AC 

Flow Meter (DML)

Class 0.2% – Digital Flow Meter 
4~20mA input – Corresponding to the required display Range. 
User Programmable 
Optional : Relay contact, Signal Output and pulse output 
Dual Aux. Power 110/220V AC 

RS485 Meter (DMG)

Class 0.1% – Digital Modbus RTU Meter 
RS485 Modbus RTU input – Corresponding to the required display Range. 
User Programmable 
Optional : 2 Relay contact and Signal Output 
Dual Aux. Power 110/220V AC 

Customized Requirement

If you have specific requirement on input, display, contact, signaling.
Our factory can customize to your specific need when provided details.