Fluke 1630 Use and care manual

®
October 2007
© 2007 Fluke Corporation. All rights reserved. Specifications are subject to change without notification.
All product names are trademarks of their respective companies.
1
1630
Earth Ground Clamp
Calibration Information
Introduction
This document provides the following information for the 1630 Earth Ground Clamp (hereafter
referred to as the Clamp or UUT):
•Safety information
•Symbols
•Specifications
•Maintenance
•Performance Tests
•Calibration Adjustments
•Product Warranty Statement
For complete operating instructions, refer to the 1630 Instruction Sheet.
Contacting Fluke
For warranty service, contact Fluke as follows:
USA: 1-888-99-FLUKE (1-888-993-5853)
Canada: 1-800-36-FLUKE (1-800-363-5853)
Europe: [phone]
Japan: [phone]
Singapore: [phone]
Anywhere in the world: [phone]
Or, visit Fluke's Web site at www.fluke.com.
To register your product, go to register.fluke.com.

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Earth Ground Clamp
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Safety Information
XW Safety Information
To avoid possible electric shock or personal injury and ensure safe
operation and service of the Clamp, follow these instructions:
•Read the operating instructions before use and follow all safety
instructions.
•Use the Clamp only as specified in the operating instructions;
otherwise, the Instrument’s safety features may be impaired.
•Adhere to local and national safety codes. Individual protective
equipment must be used to prevent shock and arc blast injury where
hazardous live conductors are exposed.
•Before each use, inspect the Clamp. Look for cracks or missing
portions of the Instrument housing or output cable insulation. Also,
look for loose or weakened components. Pay particular attention to the
insulation surrounding the jaws.
•Never use the Clamp on a circuit with voltages higher than 600 V CAT II
or 300 V CAT III.
•CAT II equipment is designed to protect against transients from
energy-consuming equipment supplied from the fixed installation,
such as TVs, PCs, portable tools, and other household appliances.
•CAT III equipment is designed to protect against transients in
equipment in fixed-equipment installations, such as distribution
panels, feeders and short branch circuits, and lighting systems in
large buildings.
•Use extreme caution when working around bare conductors or busbars.
Contact with the conductor could result in electric shock.
•Use caution when working with voltages above 60 V dc or 30 V ac. Such
voltages pose a shock hazard.
Symbols
Table 1 describes the symbols that appear on the Clamp or in this document.
Table 1. Symbols
Symbol Explanation
,Application to or removal from hazardous, live conductors is
permitted.
WRisk of danger. Important information.
XHazardous voltage. Risk of electric shock.
TDouble insulated.
B Battery or battery compartment. Low battery when shown
on display.
PConforms to requirements of European Union.
~Do not dispose of this product as unsorted municipal waste.
Go to Fluke’s website for recycling information.
)Canadian Standards Association.
Complies with Canadian and US Standards.

Earth Ground Clamp
Specifications
3
Specifications
General Specifications
Conductor Size.................................................. 33 mm (1.3 in) approximately
Dimensions (L x W x H) .................................... 276 mm x 100 mm x 47 mm (10.8 in x 3.9 in x 1.9 in)
Weight ................................................................ 750 g (1.65 lb)
Electrical Specifications
Display ............................................................... LCD
Operating Humidity........................................... Less than 85 % RH
Storage Temperature........................................ -20 °C to 60 °C (-4 °F to 140 °F)
Storage Humidity .............................................. < 75 % RH
Reference Temperature.................................... 23 °C ±5 °C (73 °F ±9 °F)
Temperature Coefficient................................... 0.1 X (specified accuracy) / °C (< 18 °C or > 28 °C)
Operating Temperature .................................... 0 °C to +50 °C (+32 °F to +122 °F)
Protective Type ................................................. IP30 according to IEC 60529/EN 60529
Category Rating ................................................ 300 V CAT III, pollution degree 2 and 600 V CAT II
EMC (Emission)................................................. IEC 61000-4-1, IEC 61326-1 Class B
EMC (Immunity)................................................. IEC 61000-4-2 8 kV (air) Criteria B,
IEC 61000-4-3 V/m perf. Criteria A
Range Selection ................................................ Auto
Overload Indication .......................................... OL
Measurement Frequency.................................. 3.333 kHz
Power Requirement .......................................... 9 V alkaline (type IEC 6 LR 61, NEDA 1604A)
Power Consumption ......................................... Approx. 40 mA (in Ωfunction)
Maximum Non-Destructive Current................. 100 A continuous, 200 A (< 10 sec) 50/60 Hz
Accuracy of Calibration Plate .......................... ±0.1 %
Data Logging Capacity ..................................... 116 records
Data Logging Interval ....................................... 1 to 255 seconds
Ground Loop Resistance
Range Accuracy [1]
(± % of reading + Ω)
0.025 to 0.250 Ω±1.5 % + 0.02 Ω
0.250 to 1.000 Ω±1.5 % + 0.05 Ω
1.000 to 9.999 Ω±1.5 % + 0.1 Ω
10.00 to 50.00 Ω±1.5 % + 0.3 Ω
50.00 to 99.99 Ω±1.5 % + 0.5 Ω
100.0 to 200.0 Ω±3.0 % + 1.0 Ω
200.1 to 400.0 Ω±5.0 % + 5.0 Ω
400.0 to 600.0 Ω±10.0 % + 10.0 Ω
600.0 to 1500.0 Ω±20.0 %
Note
[1] Loop resistance with no inductance, external field
< 200 A/m, external electrical field < 1 V/m, conductor
centered.
Ground Leakage Current mA
Autorange 50/60 Hz, True rms, crest factor (CF) < 3.5
Range Accuracy
0.300 to 1.000 mA ±2.0 % rdg ±0.05 mA
1.00 to 10.00 mA ±2.0 % rdg ±0.03 mA
10.0 to 100.0 mA ±2.0 % rdg ±0.3 mA
100 to 1000 mA ±2.0 % rdg ±3.0 mA

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Earth Ground Clamp
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Ground Leakage Current A
Autorange 50/60 Hz, True rms, crest factor (CF) < 3.5
Range Accuracy
0.200 to 4.000 A ±2.0 % rdg ±0.03 A
4.00 to 35.00 A ±2.0 % rdg ±0.03 A
Maintenance
XWWarning
To avoid possible electric shock or personal injury, only
qualified personnel should perform repairs or servicing not
covered in this manual.
Cleaning the Clamp
WCaution
To avoid damaging the Clamp, do not use aromatic
hydrocarbons or chlorinated solvents for cleaning. These
solutions will react with the plastics used in the Clamp.
Clean the instrument case with a damp cloth and mild detergent.
Replacing the Battery
XWWarning
To avoid false readings that could lead to possible electric
shock or personal injury, replace the batteries as soon as the
low battery indicator (B) appears.
To replace the battery:
1. Turn the rotary switch to OFF.
2. Use a Phillips screwdriver to remove the bottom case screws.
3. Lift and remove the bottom case.
4. Remove the old battery.
5. Replace the battery with a new 9-volt battery.
6. Install the bottom case and tighten the screws.
Performance Tests
XWWarning
To avoid possible electric shock, ensure the Clamp is
completely assembled before performing any test procedures.
Only qualified personnel should perform these tests.
The following performance tests verify the complete operation of the Clamp and check the
accuracy of each function against its specifications. Before performing any of the following tests,
check the battery and replace if necessary.
The recommended calibration interval is 12 months. In the performance tests, the Clamp is
referred to as the unit under test (UUT). If the UUT fails any performance test, contact Fluke
Service for repair. See Contacting Fluke.

Earth Ground Clamp
Performance Tests
5
Required Equipment
Table 2 lists the required equipment to complete the performance tests. If the recommended
models are unavailable, use equipment with equivalent specifications.
Table 2. Required Equipment
Equipment Minimum Required Characteristics Recommended Model
Calibrator
AC current:
• Range 9 mA to 10 A
• Accuracy ac mA ±1.25 %
• Accuracy Amps ±0.15 %
• Frequency 60 Hz
Fluke 5520A High Performance
Multi-Product Calibrator
or
Fluke 5500A Multi-Product
Calibrator
Precision Decade
Resistance Box Accuracy, 1 Ωto 1100 Ω: ±0.475 % Yokogawa 2793 or equivalent
Magnet wire coil 3 turns, 14-gauge film-coated copper wire,
6-in. diameter ---
1-loop copper wire coil 1 turn, 14-gauge copper wire, 6-in. diameter ---
Testing the LCD
Use the following procedure to test the LCD:
1. Push down and hold Fwhile turning on the Clamp.
2. Compare the LCD with the example in Figure 1.
3. Check all display segments for clarity and contrast.
AVE Harmonic REC NO.
H
KmVA
NOISE R<1
A P
KWHz
KVARST
60Hz
A C
MAXC.F.
MINZERO
BAL
KWH
%
Pk THD
fcy01.eps
Figure 1. LCD Test

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Earth Ground Clamp
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Accuracy Tests
Accuracy specifications are valid for one year after calibration when measured at an operating
temperature of 18 °C to 28 °C. Allow the UUT to stabilize at room temperature before
performing the accuracy tests.
To verify the accuracy of the UUT functions, complete the following steps:
1. Connect a 6-inch diameter loop of wire across the output terminals of the decade resistor
box.
2. Turn the UUT rotary switch from OFF to Oand verify the UUT displays CAL 7, 6,
5…CAL 1 and a single beep is heard.
3. Set the decade box for the Applied Value in Table 3, steps 1-4, and clamp the UUT
around the wire loop at the output terminals.
4. Compare the displayed reading with Display Reading Limits.
5. Continue accuracy tests for the other functions listed in Table 3. If any display readings
fall outside of the Display Reading Limits in Table 3, the UUT requires calibration
adjustment or repair. See Contacting Fluke.
Table 3. 1630 Accuracy Tests
Step UUT
Function Source Applied Value Display Reading
Limits/Instruction
1 1 Ω0.935 to 1.065
2 9 Ω8.765 to 9.235
3 12 Ω11.52 to 12.48
4 90 Ω88.15 to 91.85
5 110 Ω105.7 to 114.3
6 200 Ω193.0 to 207.0
7 400 Ω375.0 to 425.0
8 600 Ω530.0 to 670.0
9
ODecade Resistance Box
and 6-in. diameter wire
loop
1100 Ω880.0 to 1320.0
10 0.3 mA, 60 Hz 0.244 to 0.356
11 0.9 mA, 60 Hz 0.832 to 0.968
12 1.1 mA, 60 Hz 1.05 to 1.15
13 9 mA, 60 Hz 8.79 to 9.21
14 11.0 mA, 60 Hz 10.5 to 11.5
15 90 mA, 60 Hz 87.9 to 92.1
16 110 mA, 60 Hz 105 to 115
17
~ mA
900 mA, 60 Hz 879 to 921
18 0.3 A, 60 Hz 0.264 to 0.336
19 3 A, 60 Hz 2.910 to 3.090
20
Calibrator and 6-in.
diameter wire loop
4.2 A, 60 Hz 4.09 to 4.31
21
~ A
Calibrator and 3 turns of
copper magnet wire,
6-in. diameter 10 A, 60 Hz 29.37 to 30.63

Earth Ground Clamp
Performance Tests
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Table 3. 1630 Accuracy Tests (cont.)
Step UUT
Function Source Applied Value Display Reading
Limits/Instruction
22 Press Fand set the HI alarm to
40 Ω
23 Press Fto return to measurement
function
24 50 ΩClamp Beeps and Display shows
HI__
25
Press Fand set the LO alarm to
30 Ω
26
Press Fto return to measurement
function
27
Decade Resistance Box
and 6-in. diameter wire
loop
10 ΩClamp Beeps and Display shows
LO__
28
Continuity
Press Funtil SEC is shown on
display. Press the Eand Dto check
if value can be incremented.
29 Decade Resistance Box and 6-in. diameter wire
loop
10 Ω, 20 Ω, 30 Ω,
40 Ω, 50 Ω
Press Rto record each value when
display reading is stable.
30
Press Funtil No. and 0000 are
shown on the display. Press Eand D
to check if recorded values are
displayed.
31
Turn the power off. Hold Rand then
turn the power on. The display will
show CL to indicate that memory is
cleared.
32
Turn power off. Hold F, then turn
power on. When a beep sound is
heard, release F. The AP symbol
will not appear on the lower left
corner of the display. Auto-Power-
Off is disabled.
33
Ω
Decade Resistance Box
and 6-in. diameter wire
loop 10 Ω
Press Hwhen the display
reading is stable. Press Hto
hold the reading. Open the jaw and
clamp on nothing. The reading
should still show 10 Ωwith
“Harmonic” shown on the display.
34 ~ A
Turn the power off then on. The AP
(Auto-Power-Off) symbol should be
in the left hand bottom corner of the
display. Wait 4 to 5 minutes. The
UUT should turn itself off.

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Earth Ground Clamp
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Calibration Adjustment
To prepare the UUT for calibration, remove the back case and complete the following steps:
1. Remove the battery compartment by sliding a small, flathead screwdriver down
between the tabs and pca and lifting the compartment out.
2. Remove the bottom black shield to access the calibration potentiometers underneath
this shield. See Figure 2.
To enter calibration adjustment mode:
1. Press H, F, and Dsimultaneously while turning the UUT power on.
2. Continue to hold the buttons down until you hear a beep. “Harmonic” displays on the
LCD when the buttons are released.
The UUT is now in the calibration adjustment mode. Refer to Figure 2 for adjustment locations
and complete the adjustments as instructed in Table 4. If the UUT fails to meet any expected
results, contact Fluke Service for repair. See Contacting Fluke.
Table 4. Calibration Adjustment Steps
Step Action Meter
Function Source Applied
Value Adjust Expected
Result/Instruction
1 Enter Cal Mode Harmonic displays
2 Adjust ~ A None VR11 15 to 16 digits displayed
3 Adjust ΩNone VR2 Rotate VR2 for minimum
value
4 Adjust ΩNone VR1 Adjust VR1 for 150 digits on
display
5 Check Ω1 kΩReading should increase to
250 (±10) digits
6 Check Ω
Decade
Resistance and
6-in. wire loop 5 ΩReading should be 18.00 to
22.00
7 Enter Normal
Measurement Mode
Remove unit from
wire loop
Turn unit Off and then On
8 Adjust Ω5 ΩVR10 5.000 Ωto ±0.005
9 Adjust Ω50 ΩVR3 50.00 Ω+ 0.00, - 0.05
10 Adjust Ω
Decade
Resistance and
6-in. wire loop 20 ΩVR11 19.90 to 20.00
11 Check Ω
Repeat Steps 8, 9, and 10
until expected results are
met.
12 Adjust ~ mA
Calibrator and 6-in.
wire loop
90 mA /
60 Hz VR20 89.90 to 90.00
Before proceeding to Step 13, reassemble the UUT by replacing the shield, battery compartment, and back
case.

Earth Ground Clamp
Calibration Adjustment
9
Table 4. Calibration Adjustment Steps (cont.)
Step Action Meter
Function Source Applied
Value Adjust Expected
Result/Instruction
13 Enter Cal Mode Harmonic displays
14 ~ A 1 A /
60 Hz Press Honce when
reading is stable.[1]
15 ~ A 3 A /
60 Hz Press Honce when
reading is stable.[1]
16 ~ A
Calibrator and 6-in.
wire loop
10 A /
60 Hz Press Honce when
reading is stable.[1]
17 ~ A
Calibrator and 3
turns copper
magnet wire, 6-in.
diameter
30 A /
60 Hz Press Honce when
reading is stable.[1]
Note
[1] Disregard reading accuracy during these calibration steps.
The calibration adjustment is now complete.

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Earth Ground Clamp
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IEC 6LR61
BATTERY
IEC 6LR61
BATTERY
Press taband lift
to remove battery
holder from PCA.
Do not remove shield
during adjustment.
VR1
VR2
Shield removed for demonstration
purposes only. Do not remove
during adjustment.
VR10
VR6 is not used VR3
VR20
VR11
fcy02.eps
Figure 2. Disassembly and Adjustment Locations

Earth Ground Clamp
Limited Warranty and Limitation of Liability
11
Limited Warranty and Limitation of Liability
Each Fluke product is warranted to be free from defects in material and workmanship under normal use and service. The
warranty period is one year and begins on the date of shipment. Parts, product repairs, and services are warranted for 90
days. This warranty extends only to the original buyer or end-user customer of a Fluke authorized reseller, and does not
apply to fuses, disposable batteries, or to any product which, in Fluke's opinion, has been misused, altered, neglected,
contaminated, or damaged by accident or abnormal conditions of operation or handling. Fluke warrants that software will
operate substantially in accordance with its functional specifications for 90 days and that it has been properly recorded on
non-defective media. Fluke does not warrant that software will be error free or operate without interruption.
Fluke authorized resellers shall extend this warranty on new and unused products to end-user customers only but have no
authority to extend a greater or different warranty on behalf of Fluke. Warranty support is available only if product is
purchased through a Fluke authorized sales outlet or Buyer has paid the applicable international price. Fluke reserves the
right to invoice Buyer for importation costs of repair/replacement parts when product purchased in one country is
submitted for repair in another country.
Fluke's warranty obligation is limited, at Fluke's option, to refund of the purchase price, free of charge repair, or
replacement of a defective product which is returned to a Fluke authorized service center within the warranty period.
To obtain warranty service, contact your nearest Fluke authorized service center to obtain return authorization information,
then send the product to that service center, with a description of the difficulty, postage and insurance prepaid (FOB
Destination). Fluke assumes no risk for damage in transit. Following warranty repair, the product will be returned to Buyer,
transportation prepaid (FOB Destination). If Fluke determines that failure was caused by neglect, misuse, contamination,
alteration, accident, or abnormal condition of operation or handling, including overvoltage failures caused by use outside
the product’s specified rating, or normal wear and tear of mechanical components, Fluke will provide an estimate of repair
costs and obtain authorization before commencing the work. Following repair, the product will be returned to the Buyer
transportation prepaid and the Buyer will be billed for the repair and return transportation charges (FOB Shipping Point).
THIS WARRANTY IS BUYER'S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU OF ALL OTHER WARRANTIES,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR PURPOSE. FLUKE SHALL NOT BE LIABLE FOR ANY SPECIAL, INDIRECT,
INCIDENTAL, OR CONSEQUENTIAL DAMAGES OR LOSSES, INCLUDING LOSS OF DATA, ARISING FROM ANY
CAUSE OR THEORY.
Since some countries or states do not allow limitation of the term of an implied warranty, or exclusion or limitation of
incidental or consequential damages, the limitations and exclusions of this warranty may not apply to every buyer. If any
provision of this Warranty is held invalid or unenforceable by a court or other decision-maker of competent jurisdiction,
such holding will not affect the validity or enforceability of any other provision.
Fluke Corporation
P.O. Box 9090
Everett, WA 98206-9090
U.S.A.
Fluke Europe B.V.
P.O. Box 1186
5602 BD Eindhoven
The Netherlands
11/99
To register your product online, visit register.fluke.com.

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Earth Ground Clamp
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