Megger Limited PWS / Nov 06
DET4TC/R Launch
14
DET4TC/R verses Metrel M2124C
The M2124C like the DET4TC/R is a 2,3 or 4 pole tester complete with both selective
(ART) and stakeless 2 clamp measurements.
Megger DET4TC advantages:
1. Quality of case with better case design.
a. Lid of M2124C has habit of trapping operator’s fingers when you open
it.
2. Many accuracies of the M2124C are not specified.
3. Distance between clamps for selective test.
a. M2124C requires 30cm.
b. DET4TC requires 10cm.
c. 30cm difficult to achieve in some location such as on lightning
protection removable links.
4. 25 or 50V user selectable output voltage
a. Required in agricultural locations to protect livestock
b. M2124C is 40V output only.
5. Backlight on display
6. Battery life not specified
7. Battery status indicator
a. Indication of remaining battery life.
8. Temperature specifications
a. M2124C not specified
9. Ground noise voltage rejection 40V pk to pk
a. M2124C not specified
10. Ground voltage measurement range
Metrel M2124C advantages:
1. 2-pole DC bond check range. (Does this comply with the needs of your local
standards?)
2. Wenner method – display of ρ (rho) (Requires further instrument setup to
use it)
3. User selectable test frequency, 125 or 128Hz. (128Hz, industry standard)
4. Result memory – majority of people still use paper sheets
5. Output to PC
Competitor Summary
The DET4TC/R offer the best blend of specification, included accessories, ease
of use and price on the market
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