M850 Introduction
MultiPower M850 is a low cost 96x96mm cased three phase power meter.
It measures line Voltages and Currents, Neutral Current, System Frequency, System W, A and VA Demands, System W, A and VA Maximum Demands, System Active Power, System Reactive Power, System Apparent Power, System Active Energy, System Reactive Energy and System Power Factor.
The LCD version has a universal power supply. It features the options of pulsed outputs, an RS485 port using Modicon's Modbus protocol and Modbus MSTP over an ethernet network.
Unless stated otherwise, all M850 meters listed below have the same specification as the standard M850-MP1
M850-LTHD
In addition to the standard M850 measurements, the M850-LTHD measures the THD of the voltage and current inputs.
Accuracy: 2% Range: 5%-75% THD Frequency: 45-65Hz
Ordering code: M850-LTHD
M850-L400
All the functions of the standard M850 at 400Hz
Ordering code: M850-L400
M850-MPD (DC) Introduction
MultiPower M850-MPD is a low cost 96x96mm cased dc power meter.
The M850-MPD measures the following:
Voltage, import/export current, import/export power, import energy (W.h), import ampere hours (A.h), import max/demands (Ad and Wd)
Voltage ranges: 0-60V, 0-150V, 0-300V, 0-800V
The M850 incorporates a BLUE or RED LED display and universal power supply.
It features the options of pulsed outputs, and a RS485 port using Modicon's Modbus protocol.
M850 specification
Input (accuracy range)
Un 28V to 330V L-N (48V to 570V L-L)
Burden < 0.5VA
In (5A specified) 0.5A to 6A via CT
In (1A specified) 0.1A to 1.2A via CT
Burden < 0.5VA
Frequency 45Hz to 65Hz
Secondary of CTs must be connected to earth
Input (working range)
Voltage and Current 1.7% - 100%
Overload
800V L-L indefinitely, In x 10 for 1 sec
Accuracy (8.4% - 100% of range)
Voltage 0.5% +/- 2 digits
Current 0.5% +/- 2 digits
Power (W,VAr,VA) 1.0% +/- 2 digits
Power Factor 1% of range
Frequency 0.1 Hz
Energy IEC 1036 Class 1
Auxiliary Voltage
100V to 440V ac (45Hz to 65Hz)
100V to 420V dc
Burden: < 10VA
Display
Digits (LED/LCD) 3 lines 9999
Digit size 14.2mm 7 segment
Energy (LCD) 1 line 99999999
Digit size 6mm 7 segment
Update time 1 second
Insulation
Installation Category III (480V ph/ph)
Degree of Pollution 2
Rated Impulse Voltage IEC 60947-1-V imp 4kV
Meter Front Class II
Electrical Security IEC 61010-1
Electromagnetic Compatibility
Immunity:
ESD IEC 61000-4-2-Level III
Radiated IEC 61000-4-3-Level III
Fast Transient IEC 61000-4-4-Level III
Impulse Waves IEC 61000-4-5-Level III
Conducted IEC 61000-4-6-Level III
Voltage Dips/Short Interruptions IEC 61000-4-11-Level II
Emissions:
Conducted and Radiated CISPR11-Class A
Environment
Working Temperature (LED) -10 to 60 deg C
Working Temperature (LCD) -20 to 70 deg C
Storage Temperature -30 to 80 deg C
Relative Humidity 0-95% non condensing
Shock 30G in 2 planes
Enclosure
Standard DIN case 96 x 96 x 60mm
Panel mounting 4 retaining clips
Cutout 92.8mm x 92.8mm
IP Rating - Front IP52 / Nema
IP Rating - Case IP30 / Nema
Options
Plug-in RS485 module (Modbus)
Plug-in relay module (W.h VAr.h)
19V-69V d.c. Auxiliary
Input (accuracy range)
Un (options)
80V to 800V dc, 30V to 300V dc, 15V to 150Vdc or 6V to 60V dc
Burden < 0.5VA
In (options)
1A to 10A or mV input (50mV, 60mV or 75mV)
Burden < 0.5VA
Voltage (-) is internally connected to L1 (l)
Overload
Un x 1.25 indefinitely
In x 5 for 1 sec
Accuracy
Voltage 0.5% +/- 2 digits
Current 0.5% +/- 2 digits
Power (W,) 1.0% +/- 2 digits
Energy IEC 1036 Class 1
Auxiliary Voltage
100V to 440V ac (45Hz to 65Hz)
100V to 420V dc
Burden: < 10VA
Display
Digits 3 lines 9999
Digit size 14.2mm 7 segment
Update time 1 second
Insulation
Installation Category III (480V)
Degree of Pollution 2
Rated Impulse Voltage IEC 60947-1-V
imp 4kV
Meter Front Class II
Electrical Security IEC 61010-1
Electromagnetic Compatibility
Immunity:
ESD IEC 61000-4-2-Level III
Radiated IEC 61000-4-3-Level III
Fast Transient IEC 61000-4-4-Level III
Impulse Waves IEC 61000-4-5-Level III
Conducted IEC 61000-4-6-Level III
Voltage Dips/Short Interruptions IEC 61000-4-11-Level II
Emissions:
Conducted and Radiated CISPR11-Class A
Environment
Working Temperature 0 to 60 deg C
Storage Temperature -40 to 85 deg C
Relative Humidity 0-95% non condensing
Shock 30G in 2 planes
Enclosure
Standard DIN case 96 x 96 x 60mm
Panel mounting 4 retaining clips
Cutout 92.8mm x 92.8mm
IP Rating - Front IP52 / Nema
IP Rating - Case IP30 / Nema
Options
Plug-in RS485 module (Modbus)
Plug-in relay module (W.h VAr.h)
19V-69V d.c. Auxiliary
M850 Introduction
MultiPower M850 is a low cost 96x96mm cased three phase power meter.
It measures line Voltages and Currents, Neutral Current, System Frequency, System W, A and VA Demands, System W, A and VA Maximum Demands, System Active Power, System Reactive Power, System Apparent Power, System Active Energy, System Reactive Energy and System Power Factor.
The M850 incorporates a BLUE or RED LED display and universal power supply. It features the options of pulsed outputs, an RS485 port using Modicon's Modbus or BACnet protocols and Modbus MSTP over an ethernet network.
Unless stated otherwise, all M850 meters listed below have the same specification as the standard M850-MP1 or M850-MPD
M850-THD
In addition to the standard M850 measurements, the M850-THD measures the THD of the voltage and current inputs.
Accuracy: 2% Range: 5%-75% THD Frequency: 45-65Hz
Ordering code: M850-THD
M850-400
All the functions of the standard M850-MP1 at 400Hz
Ordering code: M850-400
M850-BAC
All the measurements of the standard meter with BACnet protocol. RS485 plug in communication module required for this option.
Ordering code: M850-BAC
M850-MVM
The M850-MVM has 330mV ac inputs instead of the standard current inputs. The voltages are usually provided by clamp-on miniature current transformers which are ideal for retrofit applications.
Ordering code: M850-MVM (Other input values available on request).
M850-MPH
All the measurements of the standard meter plus an Hours Run option.
Ordering code: M850-MPH
M850-MPV / M850-MPA
The M850-MPV displays LN and LL voltages only.
The M850-MPA displays current and maximum demand only.
Ordering code: M850-MPV (voltage) and M850-MPA (current)