Product Overview: Fluke 1623 Ground Testers
Fluke 1623 Ground Testers
Obsolete
- Fluke 1623 tester
- 2 test leads
- Batteries
- Users manual
The Fluke 1623 and 1625 are distinctive earth ground testers that can perform all four types of earth ground measurement. Specifically, the Fluke 1623 and 1625 testers are able to measure earth ground loop resistances using only clamps – called Stakeless testing. This method doesn’t require the use of earth ground stakes or the disconnection of ground rods.
Fluke 1623 Ground Testers Testing Methods
- 3- and 4-Pole Fall of Potential – standard earth ground testing using two ground stakes
- Selective testing – without disconnecting ground rods, a technician can measure ground resistance using a combination of stakes and a clamp.
- Stakeless testing – innovative solution using only clamps, instead of ground stakes, to measure earth ground loop resistance.
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Fluke 1623 Ground Testers
- One-button measurement concept
- 3- and 4-pole earth ground measurement
- 4-pole soil resistivity testing
- Selective testing, no disconnection of ground conductor (1 clamp)
- Stakeless testing, quick ground loop testing (2 clamps)
- Measuring frequency 128 Hz
| RA 3-pole ground resistance measurement (IEC 1557-5) |
| Measuring Voltage |
| Fluke 1623 |
Vm = 48 V ac |
| Fluke 1625 |
Vm = 20/48 V ac |
|
| Short circuit current |
| Fluke 1623 |
> 50 mA |
| Fluke 1625 |
250 mA ac |
|
| Measure frequency |
| Fluke 1623 |
128 Hz |
| Fluke 1625 |
94, 105, 111, 128Hz |
|
| Resolution |
| Fluke 1623 |
0.001 Ω to 10 Ω |
| Fluke 1625 |
0.001 Ω to 100 Ω |
|
| Measuring range |
| Fluke 1623 |
0.001 Ω to 19.99 kΩ |
| Fluke 1625 |
0.001 Ω to 299.9 kΩ |
|
| Intrinsic error |
| Fluke 1623 |
± (2 % of reading + 3 digit) |
| Fluke 1625 |
± (2 % of reading + 2 d) |
|
| Operating error |
| Fluke 1623 |
± (5 % of reading + 3 d) |
| Fluke 1625 |
± (5 % of reading + 5 d) |
|
| RA 4-pole ground resistance measurement (IEC 1557-5) |
| Measuring Voltage |
| Fluke 1623 |
Vm = 48 V ac |
| Fluke 1625 |
Vm = 20/48 V ac |
|
| Short circuit current |
| Fluke 1623 |
> 50 mA |
| Fluke 1625 |
250 mA ac |
|
| Measure frequency |
| Fluke 1623 |
128 Hz |
| Fluke 1625 |
94, 105, 111, 128Hz |
|
| Resolution |
| Fluke 1623 |
0.001 Ω to 10 Ω |
| Fluke 1625 |
0.001 Ω to 100 Ω |
|
| Measuring range |
| Fluke 1623 |
0.001 Ω to 19.99 kΩ |
| Fluke 1625 |
0.001 Ω to 299.9 kΩ |
|
| Intrinsic error |
| Fluke 1623 |
± (2 % of reading + 3 d) |
| Fluke 1625 |
± (2 % of reading + 2 d) |
|
| Operating error |
| Fluke 1623 |
± (5 % of reading + 3 d) |
| Fluke 1625 |
± (5 % of reading + 5 d) |
|
| RA 3-pole ground resistance measurement with current clamp |
| Measuring Voltage |
| Fluke 1623 |
Vm = 48 V ac |
| Fluke 1625 |
Vm = 20/48 V ac |
|
| Short circuit current |
| Fluke 1623 |
> 50 mA |
| Fluke 1625 |
250 mA ac |
|
| Measure frequency |
| Fluke 1623 |
128 Hz |
| Fluke 1625 |
94, 105, 111, 128Hz |
|
| Resolution |
| Fluke 1623 |
0.001 Ω to 10 Ω |
| Fluke 1625 |
0.001 Ω to 10 Ω |
|
| Measuring range |
| Fluke 1623 |
0.001 Ω to 19.99 kΩ |
| Fluke 1625 |
0.001 Ω to 29.99 kΩ |
|
| Intrinsic error |
| Fluke 1623 |
± (7 % of reading + 3 d) |
| Fluke 1625 |
± (7 % of reading + 2 d) |
|
| Operating error |
| Fluke 1623 |
± (10 % of reading + 5 d) |
| Fluke 1625 |
± (10 % of reading + 5 d) |
|
| RA 4-pole selective ground resistance measurement with current clamp |
| Measuring Voltage |
| Fluke 1623 |
Vm = 48 V ac |
| Fluke 1625 |
Vm = 20/48 V ac |
|
| Short circuit current |
| Fluke 1623 |
> 50 mA |
| Fluke 1625 |
250 mA ac |
|
| Measure frequency |
| Fluke 1623 |
128 Hz |
| Fluke 1625 |
94, 105, 111, 128Hz |
|
| Resolution |
| Fluke 1623 |
0.001 Ω to 10 Ω |
| Fluke 1625 |
0.001 Ω to 10 Ω |
|
| Measuring range |
| Fluke 1623 |
0.001 Ω to 19.99 kΩ |
| Fluke 1625 |
0.001 Ω to 29.99 kΩ |
|
| Intrinsic error |
| Fluke 1623 |
± (7 % of reading + 3 d) |
| Fluke 1625 |
± (7 % of reading + 2 d) |
|
| Operating error |
| Fluke 1623 |
± (10 % of reading + 5 d) |
| Fluke 1625 |
± (10 % of reading + 5 d) |
|
| Stakeless ground loop measurement |
| Measuring Voltage |
| Fluke 1623 |
Vm = 48 V ac |
| Fluke 1625 |
Vm = 20/48 V ac |
|
| Measure frequency |
| Fluke 1623 |
128 Hz (125 Hz on request) |
| Fluke 1625 |
94, 105, 111, 128Hz |
|
| Noise current (Iext) |
| Fluke 1623 |
Max. Iext = 10 A (ac) (RA < 20 Ω) |
|
Max. Iext = 2 A (ac) (RA < 20 Ω) |
| Fluke 1625 |
Max. Iext = 3 A |
|
| Resolution |
| Fluke 1623 |
0.001 Ω to 0.1 Ω |
| Fluke 1625 |
0.001 Ω to 10 Ω |
|
| Measuring range |
| Fluke 1623 |
0.001 Ω to 199.9 kΩ |
| Fluke 1625 |
0.001 Ω to 29.99 kΩ |
|
| Intrinsic error |
| Fluke 1623 |
± (7 % of reading + 3 d) |
| Fluke 1625 |
± (7 % of reading + 2 d) |
|
| Operating error |
| Fluke 1623 |
± (10 % of reading + 5 d) |
| Fluke 1625 |
± (10 % of reading + 5 d) |
|
| Environmental Specifications |
| Working temperature |
|
| Operating Temperature |
|
| Nominal temperature |
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| Storage Temperature |
| Fluke 1623 |
-20 °C to +60 °C |
| Fluke 1625 |
-30 °C to +60 °C |
|
| Climatic class |
|
C1 (IEC 654-1), -5 °C to + 45 °C, 5 % to 95 % RH |
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| Protection type |
|
IP56 for case, IP40 for battery door according to EN 60529 |
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| Safety Specifications |
| Safety Rating |
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| Mechanical & General Specifications |
| Display |
| Fluke 1623 |
1999 digit LCD – display with special symbols, digit height 25 mm, fluorescent backlight |
| Fluke 1625 |
2999 Digit LCD – 7 segment liquid crystal display with special symbols and backlight |
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| Size |
|
| Weight |
| Fluke 1623 + 1625 |
1.1 kg (including batteries) |
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| Warranty |
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| Battery Life |
| Fluke 1623 |
Typical > 3000 measurements |
| Fluke 1625 |
Typical 3000 measurements (RE+RH ≤ 1 kΩ) |
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Typical 6000 measurements (RE+RH ≤ 10 kΩ) |
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