Hobut M850 Multifunction Meter Manual

The new range of Hobut multifunction panel meters feature 96 x 96mm sizes complete with unique blue LED screen, which can be seen in direct sunlight. The range is easy to use, features user-programmable CT & VT ratios, and can be used on any single or 3 phase system with any input voltage without re-programming.


Hobut M850 Multifunction Meter Manual - cover page
Brand
Hobut
Document type
Product Leaflet
Language
English
Pages
2
File format
PDF
File size
142 KB
Published
02 May, 2012
Updated
28 September, 2023
MD5 checksum
38BA1142BA52D72FC797A741386789F1

About this manual

The Hobut M850 is a multifunction panel meter with a 96 × 96 mm blue LED display that remains readable in direct sunlight. It supports user‑programmable CT and VT ratios and can be used on any single‑ or three‑phase system without re‑programming.

The device offers a range of standard functions such as voltage, current, power, energy, and power factor measurements, and optional outputs like pulsed Wh/VArh or RS‑485 Modbus. It meets multiple IEC and EN standards for safety, EMC, and environmental performance.

What's inside

  • Description
  • Application
  • Standard Functions
  • Optional Extras
  • Accuracy
  • Input
  • Display
  • Output Relay
  • Standards
  • Environment

Specifications

Input voltage range28‑570 V
Rated voltage (L‑N / L‑L)28‑330 V L‑N, 48‑570 V L‑L
Voltage/Current accuracy±0.5 % of reading
Power factor accuracy±2 % of range
Energy classIEC 1036 Class 1
Burden per phase0.5 VA
Overload voltage800 V continuous
Display digits3 lines, 9999
Pulse output rating10 W, 300 VDC, 500 mA (programmable 40‑200 ms)
Weight0.35 kg

Frequently asked questions

What is the accuracy of voltage and current measurements on the M850?

Voltage and current readings are accurate to within ±0.5 % of the measured value.

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