Fluke 1623 and 1625 - Mouser Electronics

Fluke 1623 and 1625
GEO Earth Ground Testers
Technical Data
The new Fluke 1623 and 1625
GEO Earth Ground Testers offer
an innovative solution, called
Stakeless testing, to make your
earth ground loop resistance
testing quicker and easier. No
need for a separate earth
ground clamp.
• 3- and 4-pole Fall of Potential,
earth resistance loop testing
• 4-pole Soil Resistivity testing
• Selective earth ground rod
testing using 1 clamp
• Stakeless earth ground rod
testing using 2 clamps
• IP56 rated for outdoor use
• Rugged carrying case
In addition, the Fluke 1625 offers
these advanced features:
• Automatic Frequency Control
(AFC) - identifies existing
interference and chooses a
measurement frequency to
minimize its effect, providing
more accurate earth ground
value
• R* measurement - calculates
earth ground impedance at
55 Hz to more accurately
reflect the earth ground
resistance that a fault-toearth ground would see
• Adjustable limits - for quicker
testing
Stakeless testing
The Fluke 1623 and 1625 earth
ground testers are able to measure
earth ground loop resistances using
only clamps. With this test method,
two clamps are placed around the
earth ground rod and each are connected to the tester. No earth ground
stakes are used at all. A known, fixed
voltage is induced by one clamp and
the current is measured using the
second clamp. Then the tester automatically determines the resistance
of the earth ground rod.
This test method only works if a
bonded earth ground system exists for
the building or structure under test, but
most are. If there is only one path to
ground, like at many residential applications, the Stakeless method will not
provide an acceptable value and the Fall
of Potential test method must be used.
With Stakeless testing, the earth
ground rod does not need to be disconnected—leaving the bonded earth
ground system intact during test. Gone
are the days of spending time placing
and connecting stakes for each earth
ground rod on your system—a major
time saver. You can also perform earth
ground tests in places you’ve not
considered before: inside buildings,
power pylons, or anywhere you don’t
have access to soil.
The most complete testers
The Fluke 1623 and 1625 are distinctive earth
ground testers that can perform all four types of
earth ground measurement:
• 3- and 4-Pole Fall of Potential (using stakes)
• 4-Pole Soil Resistivity testing (using stakes)
• Selective testing (using 1 clamp and stakes)
• Stakeless testing (using 2 clamps only)
The testers are also easy to use. For each test,
the testers inform you which stakes or clamps need
to be connected and the large rotary switch can be
used even with a gloved hand.
The complete model kit comes with the 1623
or 1625 tester, test leads, 4 earth ground stakes,
3 cable reels with wire, 2 clamps, batteries, and
manual—all inside a rugged Fluke carrying case.
1623 Specifications
General
Display:1999 digit LCD
User interface
Robust and waterproof
Display with special symbols, digit height 25 mm, fluorescent backlight
Instant measurement through TURN and START one button concept. The only operating elements are
rotary switch and START button
Instrument is designed for tough environmental conditions (rubber protective cover, IP56)
Temperature ranges
Working temperature
Operating temperature
Storage temperature
Reference temperature
-10 °C to 50 °C (14 °F to 22 °F)
0 °C to 35 °C (32 °F to 95 °F)
-20 °C to 60 °C (-4 °F to 140 °F)
23 °C to ± 2 °C (73 °F to ± 4 °F)
The chart of four temperature ranges for the instrument exist to satisfy European Standards requirements; the instrument can be used over the full working
temperature range by using the temperature coefficient to calculate accuracy at the ambient temperature of use.
Temperature coefficient
Intrinsic error
Operating error
Climatic class
Protective type
Safety
EMC (Emission Immunity)
Quality system
External voltage
V ext rejection
Measuring time
Max. overload
Auxiliary power
Battery life span
Dimensions (WxHxD)
± 0.1 % of reading/K
Refers to the reference temperature range and is guaranteed for 1 year
Refers to the operating temperature range and is guaranteed for 1 year
C1 (IEC 654-1), -5 °C to +45 °C (23° to +115° F), 5 % to 95 % RH
IP56 for case, IP40 for battery door according to EN60529
Protection by double and/or reinforced insulation. max. 50 V to earth
IEC 61326-1:1997 Class A
Developed, designed and manufactured according to DIN ISO 9001
V ext, max = 24 V (dc, ac < 400 Hz), measurement inhibited for higher values
> 120 dB (162⁄3, 50, 60, 400 Hz)
Typical 6 sec.
250 V rms (pertains to misuse)
6 x 1.5 V mignon cells alkali-manganese (type AA LR6)
Typical > 3,000 measurements
250 mm x 133 mm x 187 mm (9.75 in x 5.25 in x 7.35 in)
Weight
1.1 kg (2.43 lb) including batteries
Fluke Corporation
1623 and 1625 GEO Earth Ground Testers
RA 3-pole ground resistance measurement (IEC 1557-5)
Switch position
Resolution
Measuring range
Intrinsic error
Operating error
RA 3-pole
0.001 Ω to 10 Ω
0.001 Ω to 19.99 kΩ
± (2 % rdg + 3 d)
± (5 % rdg + 3 d)
For 2-pole measurements connect terminals H and S with the supplied connector cable.
Measuring principle: Current and voltage measurement
Measuring voltage
Short-circuit current
Measure frequency
Probe resistance (RS)
Auxiliary earth electrode resistance (RH)
Additional error from RH and RS
Monitoring of RS and RH with error indicator
Automatic range selection
Measurement is not performed if the current through the current clamp is too low
Vm = 48 V ac
> 50 mA
128 Hz (125 Hz on request)
Max 100 kΩ
Max. 100 kΩ
RH[kΩ] • • • RS[kΩ]/RA[Ω] • • • 0.2 %
RA 4-pole ground resistance measurement (IEC 1557-5)
Switch position
Resolution
Measuring range
Intrinsic error
Operating error
RA 4-pole
0.001 Ω to 10 Ω
0.001 Ω to 19.99 kΩ
± (2 % rdg + 3 d)
± (5 % rdg + 3 d)
Measuring principle: Current/voltage measurement
Vm = 48 V ac
> 50 mA
128 Hz (125 Hz on request)
Max. 100 kΩ
Max. 100 kΩ
RH[kΩ] • • • RS[kΩ/RA[Ω] • • • 0.2 %
Measuring voltage
Short-circuit current
Measuring frequency
Probe resistance (RS+ RES)
Auxiliary earth electrode resistance (RH)
Additional error from RH and RS
Monitoring of RS, and RH with error indicator
Automatic range selection
RA 3-pole selective ground resistance measurement with current clamp (RA
)
Switch position
Resolution
Measuring range
Intrinsic error
Operating error
RA 3-pole
0.001 Ω to 10 Ω
0.001 Ω to 19.99 kΩ
± (7 % rdg + 3 d)
± (10 % rdg + 5 d)
Measuring principle: Current/voltage measurement (with external current clamp)
Measuring voltage
Short-circuit current
Measuring frequency
Probe resistance (RS)
Auxiliary earth electrode resistance (RH)
Monitoring of RS, and RH with error indicator
Automatic range selection
Measurement is not performed if the current through the current clamp is too low
Fluke Corporation
1623 and 1625 GEO Earth Ground Testers
Vm = 48 V ac
> 50 mA
128 Hz (125 Hz on request)
Max. 100 kΩ
Max. 100 kΩ
RA 4-pole selective ground resistance measurement with current clamp (RA
)
Switch position
Resolution
Measuring range
Intrinsic error
Operating error
RA 4-pole
0.001 Ω to 10 Ω
0.001 Ω to 19.99 kΩ
± (7 % rdg + 3 d)
± (10 % rdg + 5 d)
Measuring principle: Current/voltage measurement (with external current clamp)
Measuring voltage
Short-circuit current
Measuring frequency
Probe resistance (RS)
Auxiliary earth electrode resistance (RH)
Monitoring of RS, and RH with error indicator
Automatic range selection
Measurement is not performed if the current through the current clamp is too low
Stakeless ground loop measurement (
Switch position
RA 4-pole
Resolution
0.001 Ω to 0.1 Ω
Vm = 48 V ac
> 50 mA
128 Hz (125 Hz on request)
Max. 100 kΩ
Max. 100 kΩ
)
Measuring range
0.001 Ω to 199.9 Ω
Intrinsic error
± (7 % rdg + 3 d)
Operating error
± (10 % rdg + 5 d)
Measuring principle: Stakeless measurement of resistance in closed loops using two current transformers
Measuring voltage
Measuring frequency
Noise current (IEXT)
Vm = 48 V ac (primary)
128 Hz (125 Hz on request)
Max. IEXT = 10 A (ac) (RA < 20 Ω)
Max. IEXT = 2 A (ac) (RA > 20 Ω)
Automatic range selection
The information regarding stakeless ground loop measurements is only valid when used in conjunction with the recommended current clamps at the minimum
distance specified.
Fluke Corporation
1623 and 1625 GEO Earth Ground Testers
1625 Specifications
General
Description
Measuring function
Display
Operation
Microprocessor controlled, fully automated earth measuring instrument with additional functions
Interference voltage and frequency, earthing resistance 3- and 4-pole with/without clip-on current transformer,
resistance 2-pole with ac, 2- and 4-pole with dc
4 digit (2999 Digit) - 7 segment liquid crystal display, digit size 18 mm (0.71 in) with supplementary signs and
active illumination
Central rotary switch and function keys
Temperature ranges
Working temperature range
Operating temperature range
Nominal temperature range
Storage temperature range
-10 °C to 50 °C (14° F to 122° F)
0 °C to 35 °C (32° F to 95° F)
18 °C to 28 °C (64° F to 82° F)
-30 °C to 60 °C (-22° F to 140° F)
Note: The chart of four temperature ranges for the instrument exist to satisfy European Standards requirements; the instrument can be used over the full Working
temperature range by using the temperature coefficient to calculate accuracy at the ambient temperature of use.
Temperature coefficient
Operating errors
± 0.1 % of range/Kelvin
Refer to operating temperature range and RH < 20 RE, RS < 100 RE
The maximum percentage operating error within the measurement range does not exceed ± 30 % with the measured value as fiducial value, as determined in
accordance with Table 1 in the 1625 Users Manual.
The operating error applies under the rated operating conditions given in IEC1557-1 and the following:
• injection of series interference voltages with system frequencies of 400 Hz, 60 Hz, 50 Hz, 162/3 Hz or with dc voltage respectively across the terminals E (ES)
and S. The rms value of the series interference voltage shall be 3 V;
• resistance of the auxiliary earth electrode and of the probes: 0 to 100 x RA but ≤ 50 kΩ;
• system voltages between 85 % and 110 % of the nominal voltage and between 99 % and 101 % of the nominal system frequency for measuring equipment
with a mains supply and/or measuring equipment deriving its output voltage directly from the distribution system.
Fluke Corporation
1623 and 1625 GEO Earth Ground Testers
Refer to nominal temperature range
C1 (IEC 654-1), -5 °C to 45 °C, 5 % to 95 % RH
IP56 for case, IP40 for battery door according to EN60529
Limits of error
Climate class
Type of protection
Max voltage
! socket
Urms = 0 V
to socket
Sockets ”
“ to each other in any combination, max. Urms = 250 V (pertains to misuse)
IEC 61326-1:1997 Class A
Developed, designed and manufactured to comply with DIN ISO 9001
Complies with DIN 43780 (8/76)
6 x 1.5 V alkali-manganese-batteries (IEC LR6 or type AA )
With IEC LR6/type AA: typ. 3,000 measurements (RE+RH ≤ 1 kΩ)
With IEC LR6/type AA : typ. 6,000 measurements (RE + RH > 10 kΩ)
250 mm x 133 mm x 187 mm (9.75 in x 5.25 in x 7.35 in)
≤ 1.1 kg (2.43 lb) without accessories
≤ 5.5 kg (12.13 lb) incl. accessories and batteries in carrying case
NORYL, shock -and scratch proof thermoplast
EMC (Emission Immunity)
Quality standard
External field influence
Auxiliary power
Battery life span
Dimensions (WxHxD)
Weight
Case material
Measurement of interference voltage dc + ac (UST)
Fullwave rectification
Measuring Limits of error: method
Measuring Range
1 V to 50 V
Display Range
0.0 V to 50 V
Resolution
0.1 V
Measuring sequence
Internal resistance
Max. overload
approx. 4 measurements/s
approx. 1.5 MΩ
Urms = 250 V
Frequency Range
dc/ac 45 Hz to 400 Hz sine
Limits of Error
± (5 % of rdg + 5 digit)
Measurement of interference frequency (F )
Measuring method
Measurement of oscillation period of the interference voltage
Measuring Range
6.0 Hz to 400 Hz
Display Range
16.0 Hz to 299.9 Hz to 999 Hz
Resolution
0.1 Hz to 1 Hz
Range
1 V to 50 V
Limits of Error
± (1 % of rdg + 2 digit)
Earthing resistance (RE)
Measuring method
Open circuit voltage
Short circuit current
Measuring frequency
Noise rejection
Max. overload
Fluke Corporation
Current and voltage measurement with probe as IEC61557-5
20/48 V, ac
250 mA ac
94, 105, 111, 128 Hz selected manually or automatic. (AFC) 55 Hz in function R*
120 dB (162/3, 50 , 60, 400 Hz)
Urms = 250 V
1623 and 1625 GEO Earth Ground Testers
Electrical measurement specifications
Reference conditions or specified
operating range
Intrinsic error
Position
Supply voltage
Reference conditions
Reference position ± 90°
At the limits stated by the
manufacturer
0 °C and 35 °C
See 4.2 and 4.3
0 to 100 x RA but ≤ 50 kΩ
A
E1
E2
Part 5, 6.1
Part 1, 4.2
Part 1, 4.2, 4.3
R
R
R
E3
E4
E5
Part 1, 4.2
Part 5, 4.2, 4.3
Part 5, 4.3
T
T
T
99 % to 101 % of the
nominal frequency
85 % to 110 % of the nominal voltage
E7
Part 5, 4.3
T
E8
Part 5, 4.3
Part 5, 4.3
T
R
Temperature
Series interference voltage
Resistance of the probes and
auxiliary earth electrodes
System frequency
System voltage
Operating error
A
En R
T
=
=
=
=
Designation
code
Requirements or test in
accordance with the relevant
parts of IEC 1557
Intrinsic error or influence
quantity
Type
of test
intrinsic error
variations
routine test
type test
Measuring
Range
0.020 Ω to
300 kΩ
Display Range
Resolution
0.001 Ω to 2.999 Ω
3.00 Ω to 29.99 Ω
30.0 Ω to 299.9 Ω
0.300 kΩ to 2.999 kΩ
3.00 kΩ to 29.99 kΩ
30.0 kΩ to 299.9 kΩ
0.001 Ω
0.01 Ω
0.1 Ω
1 Ω
10 Ω
100 Ω
Instrinsic Error
Max. Operating Error
± ( 2 % of rdg + 2 digit )
± ( 5 % of rdg + 5 digit )
typ. 8 sec. with a fixed frequency
30 sec. max. with AFC and complete cycle of all measuring frequencies
Measuring time
Additional error because of probe-and auxiliary earth
electrode resistance
Measuring error of RH and RS
Max. probe resistance
Max. auxiliary earth electrode resistance
typ. 10 % of R E + R S + R H
≤ 1 MΩ
≤ 1 MΩ
Automatic check if error is kept within the limits required by IEC61557-5.
If after a measurement of probe-, auxiliary earth electrode- and earthing resistance, a measurement error of higher than 30 % is assumed because of the influencing
conditions (see diagram), the display shows a warning symbol ! and a notice that RS or RH are too high.
Fluke Corporation
1623 and 1625 GEO Earth Ground Testers
Automatic switchover of measuring resolution in
dependence to auxiliary earth electrode resistance RH
RH with Umeas = 48 V
RH with Umeas = 20 V
Resolution
< 250 Ω
< 2.5 kΩ
< 25 kΩ
< 250 kΩ
1 mΩ
10 mΩ
100 mΩ
1Ω
< 300 Ω
< 6 kΩ
< 60 kΩ
< 600 kΩ
Selective measurement of the earthing
resistance (RE
)
Measuring method
Open circuit voltage
Short circuit current
Measuring frequency
Noise rejection
Max. overload
Current and voltage measurement with
probe as per EN61557-5 and current
measurement in the individual branch
with additional current transformer
(patent applied for).
20/48 V ac
250 mA ac
94, 105, 111, 128 Hz selected manually
or automatically (AFC), 55 Hz (R*)
120 dB (162/3, 50, 60, 400 Hz)
Max. Urms = 250 V (measurement will
not be started)
Measuring Range
0.020 Ω to 30 kΩ
Display range
0.001 to 2.999 Ω
Resolution
0.001 Ω
3.00 to 29.99 Ω
30.0 to 299.9 Ω
0.300 to 2.999 kΩ
3.00 to 29.99 kΩ
0.01 Ω
0.1 Ω
1 Ω
10 Ω
Intrinsic error*
± (7 % of rdg + 2 digit)
Operating error*
± (10 % of rdg + 5 digit)
* With recommended current clamps/transformers.
Additonal error because of probe- and auxiliary earth
typ. electrode resistance
Measuring error of RH and RS
Measuring time
Minimal current in single branch to be measured
Max. interference current through transformer
Fluke Corporation
1623 and 1625 GEO Earth Ground Testers
Typ. of 10 % of R ETOTAL + R S + R H
Typ. 8 sec. with a fixed frequency 30 sec. max. with AFC and complete cycle of
all measuring frequencies
0.5 mA
With transformer (1000:1)
0.1 mA
With transformer (200:1)
3 A
With a transformer (1000:1)
Resistance measurement (R~)
Current and voltage measurement
20 V ac, square pulse
> 250 mA ac
94, 105, 111, 128 Hz selected manually or automatically (AFC)
Measuring method
Measuring voltage
Short circuit current
Measuring frequency
Measuring range
0.020 Ω to 300 kΩ
Display range
0.001 Ω to 2.999 Ω
3.0 Ω to 29.99 Ω
30 Ω to 299.9 Ω
300 Ω to 2999 Ω
3.0 kΩ to 29.99 kΩ
30.0 kΩ to 299.9 kΩ
Resolution
0.001 Ω
0.01 Ω
0.1 Ω
1 Ω
10 Ω
100 Ω
Intrinsic error
± (2 % of rdg + 2 digit)
Operating errors
± (5 % of rdg + 5 digit)
typ. 6 sec.
24 V, with higher voltages measurement will not be started
Urms max. = 250 V
Measuring time
Max. interference voltage
Max overload
Resistance measurement (R )
Measuring method
Open circuit voltage
Short circuit current
Formation of measured value
Measuring range
0.020 Ω to 3 kΩ
current- voltage measurement as per IEC61557-4 possible
20 V dc
200 mA dc
with 4-pole measurement wires on H, S, ES can be extended without additional error.
Resistances > 1 Ω in wire E can cause additional error of 5m Ω/Ω.
Display range
0.001 Ω to 2.999 Ω
3.0 Ω to 29.99 Ω
30.0 Ω to 299.9 Ω
300 Ω to 2999 Ω
Resolution
0.001 Ω
0.01 Ω
0.1 Ω
1Ω
Intrinsic error
± (2 % of rdg + 2 digit)
Measuring sequence
Measuring time
Max. interference voltage
Approx. 2 measurements/s
Typ. 4 sec. incl. reversal of polarity (2-pole or 4-pole)
≤ 3 V ac or dc, with higher voltages measurement will not be started
Max inductivity
Max. overload
2 Henry
Urms = 250 V
Compensation of lead resistance (RK)
Compensation of lead resistance (RK) can be switched on in functions RE 3-pole, RE 4-pole
Formation of measured value
Rdisplay = Rmeasured - Rcompensated*
* Value of setpoint entry RK = 0.000 Ω, variable from 0.000 to 29.99 Ω by means of measuring adjustment.
Fluke Corporation
1623 and 1625 GEO Earth Ground Testers
, R~ , and R
2-pole
Operating error
± (5 % of rdg + 5 digit)
Selection guide by user
Industrial
Maintenance
Technician
Field Service
Technician
•
Fluke 1623
Power Utilities
and Telecom
•
•
Fluke 1625
•
Standard earth ground test methods
Fall of Potential
3-pole
4-pole/soil
Fluke 1623
Fluke 1625
•
•
•
•
Selective
1 clamp
Stakeless
2 clamps
•
•
•
•
Ordering information
Fluke-1623 Kit
Fluke-1623
EI-1623
Fluke-1625 Kit
Fluke-1625
EI-1625
Basic GEO Earth Ground Tester Kit
Basic GEO Earth Ground Tester
Selective/Stakeless Clamp Set for 1623
Advanced GEO Earth Ground Tester Kit
Advanced GEO Earth Ground Tester
Selective/Stakeless Clamp Set for 1625
Optional accessories
ES-162P3
ES-162P4
Earth Stake
Cable-Reel 25 m
Cable-Reel 50 m
EI-162BN
Stake Set for 3-Pole Measurement
Stake Set for 4-Pole Measurement
Ground/Earth Stake
Ground/Earth Cable Reel 25 m (81.25 ft)
Ground/Earth Cable Reel 50 m (162.5 ft)
320 mm (12.6 in) Split Core Transformer
Fluke.Keeping your world
up and running.
Fluke Corporation
PO Box 9090, Everett, WA USA 98206
Fluke Europe B.V.
PO Box 1186, 5602 BD
Eindhoven, The Netherlands
For more information call:
In the U.S.A. (800) 443-5853 or
Fax (425) 446-5116
In Europe/M-East/Africa +31 (0) 40 2675 200 or
Fax +31 (0) 40 2675 222
In Canada (800) 36-FLUKE or
Fax (905) 890-6866
From other countries +1 (425) 446-5500 or
Fax +1 (425) 446-5116
Web access: http://www.fluke.com
©2006 Fluke Corporation. All rights reserved.
Printed in U.S.A. 5/2006 2634980 D-EN-N Rev A
10 Fluke Corporation
1623 and 1625 GEO Earth Ground Testers
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Fluke:
EI-1623 EI-1625 ES-162P4
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