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  3. How to connect the input and output source with GPM-8212

GW Instek How to connect the input and output source with GPM-8212 User manual

  • Hello! I've reviewed the user manual for the GW Instek GPM-8212 Power Meter. The document provides instructions on wiring the device using different connection methods, including rear and front panel terminals, and configurations with or without PT/CT. It also highlights safety measures relating to current limits and how to wire for 3-phase measurements. I'm ready to answer any questions you have about the GPM-8212 based on this manual.
  • What is the maximum current allowed for rear terminal connections?
    What is the maximum current allowed for front panel terminal connections?
    What should I avoid doing when using both front and rear terminals?
Connection Method of GPM-8212
Page 1 / 4 Pages
1. General Wiring:
a. Rear Terminal Only (*)
Without PT or CT
With PT or CT
The connection is no different between PT and CT.
(*): When using the rear panel terminal
connections a maximum of 20A can be used.
Connection Method of GPM-8212
Page 2 / 4 Pages
b. Front Panel Only (**)
Without PT or CT
With PT or CT
The connection is no different between PT and CT.
(**):The front panel terminals are limited to a
maximum of 10A for safety reasons.
Connection Method of GPM-8212
Page 3 / 4 Pages
C. Using both side terminal (***)
Front Out (LOAD) / Rear In (SOURCE)
Note: With this terminal combination, the maximum
measurable ampere is 10A only due to the front
terminal’s safety specification.
Rear Out (LOAD) / Front In (SOURCE)
Note: With this terminal combination, the maximum
measurable ampere is up to 20A.
(***): Do not connect the rear and front panel
source terminals at the same time.
Do not connect the rear and front panel load
terminals at the same time.
Connection Method of GPM-8212
Page 4 / 4 Pages
2. Special Application:
Using GPM-8212 to measure 3-phase 3-wire System
Note: User should definite each phase (R and T and S) first
before connect to GPM-8212.
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