Fluke 1630 Instruction manual

Technical Data
Fluke 1630
Earth Ground Clamp Meter
• A wide ground loop resistance range, from 0.025 Ωto1500 Ω, to
satisfy all requirements
• Large jaw opening of 35 mm (1.38 in) for tests on ground conductors
and/or equipotential bus bars
• Measurement of ground leakage current, from 0.2 mA to 1000 mA,
without needing to disconnect - ideal for system troubleshooting
• Wide ac current measurement range from 0.2 A to 30 A allows one
instrument for multiple applications
• Continuity loop test - quickly assess whether resistance is less than
40 Ω, with audible alarm
• User-defined HI / LO Alarm limits, for rapid measurement evaluation
•Handy “Display-Hold” button for capturing readings in
hard-to-reach places
•Time saving memory function automatically records and
stores measured values
•Automatic self calibration ensures correct measurement every time
The clamp-on ground testing technique used by
the Fluke 1630 simplifies ground loop testing and
enables non-intrusive leakage current measurement.
The compact and rugged design makes the Fluke
1630 easy to use in small places and harsh environ-
ments, while the “Display-Hold” and the continuity test-
ing with an audible alarm function, ensures convenience
in use. The novel technique means that earth ground
loop testing and continuity testing can be completed
without breaking the circuit.
Earth Ground loop resistance measurements
for commercial, industrial, and utility applications

2 Fluke Corporation Fluke 1630 Earth Ground Clamp Meter
Stakeless testing system
The Fluke 1630 uses the Stakeless testing method,
which eliminates the need to disconnect parallel
ground rods and find suitable locations for
placing auxiliary ground stakes. This saves time
and enables users such as industrial and utility
electricians, and field service electricians and
contractors, to perform earth ground loop tests
in locations where it is not possible to use other
techniques, such as inside buildings or on power
pylons. With the Stakeless testing method, earth
ground stakes are no longer necessary. The Fluke
1630 Earth Ground Clamp is placed around the
earth ground rod or the connecting cable. A known
voltage is induced by one half of the clamp and
the current is measured by the other half. The
tester automatically determines the ground loop
resistance at this grounding connection.
Applications
•Earth Ground loop testing in various installations
- for example, high voltage pylons, buildings, cell
phone substations, RF transmitters, etc.
•Inspection of lightning protection systems
•Leakage current measurement
General specifications
Operating error Refers to the operating temperature range and is guaranteed
for 2 years
Storage temp. range -20 °C to 60 °C (-4 °F to 140 °F )
Reference temp. range 23 °C ± 5 °C (73 °F ± 9 °F )
Storage humidity < 75 % RH
Operating humidity < 85 % RH
Display 9999 digit LC-display with special symbols
Protection IP20 according to IEC 529/EN 60529
Safety 300 V, CAT III / pollution degree 2 IEC 61010-1
Weight 640 g (1.4 lb)
Conductor size 35 mm (1.38 in) approximately
Dimension (length x width x depth) 257 mm x 100 mm x 47 mm
(1 in x 3.9 in x 1.9 in)
Emission IEC 1000 4-2, IEC 61326-1 class B
Immunity IEC 61000-4-2, 8 kV (air) criteria A
IEC 61000-4-3, 3 V/m performance criteria A
Range selection Auto
Overload indicator “OL” on display
Measuring time 0.4 sec
Measuring frequency 3.333 kHz
Battery type 9 V alkaline (type IEC 6 LR 61)
Battery life ≥8 hours (continuous operation)
Power consumption 40 mA
Low battery indication Display symbol

3 Fluke Corporation Fluke 1630 Earth Ground Clamp Meter
Ground Loop Resistance (Autorange)
Operating temperature: 0 °C to 50 °C (14 °F to 122 °F)
Range Resolution Operating error1
0.025 - 0.250 Ω 0.002 Ω± 1.5 % rdg ± 0.05 Ω
0.250 - 9.999 Ω0.02 Ω± 1.5 % rdg ± 0.1 Ω
10.00 - 99.99 Ω0.04 Ω± 2.0 % rdg ± 0.3 Ω
100.0 - 199.9 Ω 0.4 Ω± 3.0 % rdg ± 1.0 Ω
200.0 - 400.0 Ω2 Ω± 5.0 % rdg ± 5 Ω
400.0 - 600.0 Ω5 Ω± 10 % rdg ± 10 Ω
600.0 - 1500 Ω20 Ω± 20 %
1Note: Loop resistance with no inductance, external magnetic
field < 50 A/m, external electrical field < 1 V/m, conductor centered.
Continuity
Beep if resistance < approx. 40 Ω
Ground/leakage current mA~
(Autorange, 50/60 Hz, true-rms, crest factor < 3.0)
Operating temperature: -10 °C to 50 °C (14 °F to 122 °F)
Range Resolution Operating error
0.200 - 1.000 mA 0.001 mA ± 2.5 % rdg ± 0.05 mA
1.00 - 10.00 mA 0.01 mA ± 2.5 % rdg ± 0.05 mA
10.0 - 100.0 mA 0.1 mA ± 2.0 % rdg ± 0.3 mA
100 - 1000 mA 1 mA ± 2.0 % rdg ± 3 mA
Current A~
(Autorange, 50/60 Hz, true-rms, crest factor < 3.0 )
Operating temperature: -10 °C to 50 °C (14 °F to 122 °F)
Range Resolution Operating error
0.20 - 15.00 A 0.01 A ± 2.0 % rdg ± 0.03 A
15.00 - 30.00 A 0.01 A ± 3.0 % rdg ± 0.03 A
HI/LO Limit Evaluation
Values from 0 Ωto 1510 Ωmay be preset for automatic comparison. If the
measured value is outside of the limit an audible and visual signal is given.
Recording
Measured values can be saved or logged with a defined time interval from
1 to 255 s. Recorded values may then be recalled on the display of the
instrument.
Fluke. Keeping your world
up and running.™
The Fluke 1630 Earth Ground Clamp
Meter includes:
•Carrying case with strap
•Resistance test loop
•Users manual in English, French,
Spanish, German, Italian, Portuguese
and Simplified Chinese