Uploaded November 2024 | Updated September 2026, 1 week ago
In this video I describe a Voltage and Current Signal Generator, by a Chinese maker calling themselves "TKXEC", their model QH-VISG2-ED (not to be confused with model QH-VISG2-EN, which does not have a battery).
I give an overview, I demonstrate it operating in its various modes and connections, I describe a small "hack" where a red filter is added to improve display legibility and rubber feet are added so that the tester does not slide around while in use. Then I provide a sort of "Video User's Manual", in the form of a review of the comprehensive new manual I wrote for this device, and walking through the parameter tables and showing how to enter passwords to allow access to the programmable parameters.
My new User Manual, in PDF form, can be downloaded here:
serpentwebsite.com/fileshare.htm
Table of Contents Timeline:
00:00 Introduction & Amazon listing
10:40 Overview
18:53 Opening the case & internal views
22:18 Powering up and adding a red gel filter
25:34 Using external 24VDC power
26:23 Voltage Mode test & demonstration
30:32 Current (mA) Mode test & demonstration
42:05 Adding no-slip rubber feet
42:27 Manufacturer's User's Manual
48:48 Overview of my new User's Manual
1:17:24 Accessing the parameter menus & entering passwords
1:27:09 About long-duration powering of the tester
In this video I describe a Voltage and Current Signal Generator, by a Chinese maker calling themselves "TKXEC", their model QH-VISG2-ED (not to be confused with model QH-VISG2-EN, which does not have a battery).
I give an overview, I demonstrate it operating in its various modes and connections, I describe a small "hack" where a red filter is added to improve display legibility and rubber feet are added so that the tester does not slide around while in use. Then I provide a sort of "Video User's Manual", in the form of a review of the comprehensive new manual I wrote for this device, and walking through the parameter tables and showing how to enter passwords to allow access to the programmable parameters.
My new User Manual, in PDF form, can be downloaded here:
serpentwebsite.com/fileshare.htm
Table of Contents Timeline:
00:00 Introduction & Amazon listing
10:40 Overview
18:53 Opening the case & internal views
22:18 Powering up and adding a red gel filter
25:34 Using external 24VDC power
26:23 Voltage Mode test & demonstration
30:32 Current (mA) Mode test & demonstration
42:05 Adding no-slip rubber feet
42:27 Manufacturer's User's Manual
48:48 Overview of my new User's Manual
1:17:24 Accessing the parameter menus & entering passwords
1:27:09 About long-duration powering of the tester
