` 1625-2 / 1625-2-KIT GEO Earth Ground Tester - Alpha Controls & Instrumentation Inc.

Fluke

1625-2 / 1625-2-KIT GEO Earth Ground Tester

Most complete earth ground tester that can perform four types of earth ground measurements

Starting At
$5,467.00 CAD
Normally ships in 4-6 Weeks

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The Fluke 1625-2 GEO Earth Ground Tester Kit offers you simpler and faster earth ground tests than ever before. The 1625-2 offers internal memory storage up to 1500 records, accessible via USB port for rapid data transfer and viewing of results. This earth ground tester also gives you world-class accessories that take the tedium out of earth ground testing. New wire reels speed up setup and tear down time as much as 50%. Heavy duty stakes can be hammered into dry, hard soil. And new color-coded wires make setup simple and help eliminate mistakes.

The 1625-5 improves your earth ground processing with automatic frequency control (AFC), R* measurement, adjustable limits, 3- and 4- pole fall-of-potential earth resistance loop testing, and 4-pole soil resistivity testing.  It also offers selective earth ground rod testing using 1 clamp and stakeless earth ground rod testing using 2 clamps.  It is IP56 rated for outdoor use and comes with a rugged carrying case.

Kit includes the GEO Earth Ground Tester, 2 clamps, C1620 professional carrying case, 4 earth ground stakes, and 3 cable reels.

 

• Measures earth group loop resistances using only clamps (does not require earth ground stakes)
• 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-to earth ground would see
• Adjustable limits - for quicker testing
• 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
• USB data storage and transfer

Detailed Specifications

General

Memory

Internal memory storage up to 1500 records accessible via USB port

Measuring Function

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

Display

4 digit (2999 Digit) - 7 segment liquid crystal display, with improved visibility

Operation

Central rotary switch and function keys

Temperature Range

Operating Temperature

-10°C - 50°C (14°F - 122°F)

Storage Temperature

-30°C - 60°C (-22°F - 140°F)

Temperature Coefficient

+/- 0.1% of reading/°C  <18°C > 28°C

Type of Protection

IP56 for case, IP40 for battery door according to EN60529

Max Voltage

Warning – socket "clamp" to socket E, ES, S or H

Urms = 0 V

Sockets E, ES, S or H to each other in any combination, max. Urms = 250 V (pertains to misuse)

Safety

Protection by double and/or reinforced insulation. Max. 50 V to earth per IEC61010-1. 300V CAT II, Pollution degree 2

Quality Standard

Developed, designed and manufactured to comply with DIN ISO 9001

External Field Influence

Complies with DIN 43780 (8/76)

Auxiliary Power

6 x 1.5 V alkaline (IEC LR6 or type AA)

Battery Life Span

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)

Dimensions (W x H x D)

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) without accessories 7.6 kg (16.8 lb) incl. accessories and batteries in carrying case

Case Material

Polyester

Measurement of Interference Voltage DC + AC (UST)

Measuring Limits of Error: Method

Full wave rectification

Measuring Range

1 V - 50 V

Display Range

0.0 V - 50 V

Resolution

0.1 V

Frequency Range

AC/DC 45 Hz - 400 Hz sine

Accuracy

+/- (5% of RDG + 5 digits)

Measuring Sequence

approx. 4 measurements/s

Internal Resistance

approx. 1.5 MΩ

Max. Overload

Urms = 250 V

Measurement of Interference Frequency (F )

Measuring Limits of Error: Method

Measurement of oscillation period of the interference voltage

Measuring Range

6.0 Hz - 400 Hz

Display Range

16.0 Hz - 299.9 Hz - 999 Hz

Resolution

0.1 Hz - 1 Hz

Range

1 V - 50 V

Accuracy

+/- (1% of RDG + 2 digits)

Earthing Resistance (RE)

Measuring Method

Current and voltage measurement with probe as IEC61557-5

Open Circuit Voltage

20/48 V, ac

Short Circuit Current

250 mA AC

Measuring Frequency

94 Hz, 105 Hz, 111 Hz, 128 Hz selected manually or automatic. (AFC) 55 Hz in function R*

Noise Rejection

120 dB (16 2/3 Hz , 50 Hz , 60 Hz, 400 Hz)

Max. Overload

Urms = 250 V

 

Electrical Measurement Specifications

Intrinsic Error or Influence Quantity

Reference Conditions or Specified Operating Range

Designation Code

Requirements or Test in Accordance with the Relevant Parts of IEC 1557

Type of Test

Intrinsic Error

Reference conditions

A

Part 5, 6.1

R

Position

Reference position +/- 90°

E1

Part 1, 4.2

R

Supply Voltage

At the limits stated by the manufacturer

E2

Part 1, 4.2, 4.3

R

Temperature

0°C - 35°C

E3

Part 1, 4.2

T

Series Interference Voltage

See 4.2 and 4.3

E4

Part 5, 4.2, 4.3

T

Resistance of the Probes and Auxiliary Earth Electrodes

0 to 100 x RA but ≤ 50 kΩ

E5

Part 5, 4.3

T

System Frequency

99% - 101% of the nominal frequency

E7

Part 5, 4.3

T

System Voltage

85% - 110% of the nominal voltage

E8

Part 5, 4.3

T

Operating Error

B = +/- (|A| + 1,15 √E21 E22 E23 E24 E25 E26 )

Part 5, 4.3

R

A = intrinsic error
En = variations
R = routine test
T = type test

B[%] = ± B/fiducial value x 100%

Measuring Range

0.020 Ω - 300 kΩ

Display Range

0.001 Ω - 2.999 Ω

3.00 Ω - 29.99 Ω

30.0 Ω - 299.9 Ω

0.300 kΩ - 2.999 kΩ

3.00 kΩ - 29.99 kΩ

30.0 kΩ - 299.9 kΩ

Resolution

0.001 Ω

0.01 Ω

0.1 Ω

1 Ω

10 Ω

100 Ω

Accuracy

+/- (2% of RDG + 2 digits)

Operating Error

+/- (5% of RDG + 5 digits)

Measuring Time

Typical 8 s with a fixed frequency 30 s max. with AFC and complete cycle of all measuring frequencies

Additional Error Because Oof Probe-and Auxiliary Earth Electrode Resistance

RH(RS + 2000 Ω)/RE x 1.25 x 10-6% + 5 digits

Measuring Error of RH and RS

Typ. 10% of RE + RS + RH

Max. Probe Resistance

≤ 1 MΩ

Max. Auxiliary Earth Electrode Resistance

≤ 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, the display shows a warning symbol and a notice that RS or RH are too high.

 

 

Automatic Switchover of Measuring Resolution in Dependence to Auxiliary Earth Electrode Resistance RH

RH with Umeas = 48 V

< 300 Ω

< 6 Ω

< 60 Ω

< 600 Ω

RH with Umeas = 20 V

< 250 Ω

< 2.5 kΩ

< 25 kΩ

< 250 kΩ

Resolution

1 mΩ

10 mΩ

100 mΩ

1 Ω

 

Selective Measurement of the Earthing Resistance (RE Clamp)

Measuring Method

Current and voltage measurement with probe as per EN61557-5 and current measurement in the individual branch with additional current transformer (patent applied for).

Open Circuit Voltage

20 VAC / 48 VAC

Short Circuit Current

250 mA AC

Measuring Frequency

94 Hz, 105 Hz, 111 Hz, 128 Hz selected manually or automatically (AFC), 55 Hz (R*)

Noise Rejection

120 dB (162/3 Hz, 50 Hz, 60 Hz, 400 Hz)

Max. Overload

Max. Urms = 250 V (measurement will not be started)

Measuring Range

0.020 Ω - 300 kΩ

Display Range

0.001 Ω - 2.999 Ω

3.00 Ω - 29.99 Ω

30.0 Ω - 299.9 Ω

0.300 kΩ - 2.999 kΩ

3.00 kΩ - 29.99 kΩ

Resolution

0.001 Ω

0.01 Ω

0.1 Ω

1 Ω

10 Ω

Accuracy

+/- (7% of RDG + 2 digits)

Operating Error

+/- (10% of RDG + 5 digits)

Additional Error Because of Probe- and Auxiliary Earth typ. Electrode Resistance

RH(RS + 2000 Ω)/RETOTAL x 1.25 x 10-6% + 5 digits

Measuring Error of RH and RS

Typ. of 10% of RETOTAL + RS + RH

Measuring Time

Typical 8 s with a fixed frequency 30 s max. with AFC and complete cycle of all measuring frequencies.

Minimal Current in Single Branch to be Measured

0.5 mA

With transformer (1000:1)

0.1 mA

With transformer (200:1)

Max. Interference Current Through Transformer

3 A

With transformer (1000:1)

 

* With recommended current clamps/transformers.

  

 

Resistance Measurement (R~)

Measuring Method

Current and voltage measurement

Measuring Voltage

20 V AC, square pulse

Short Circuit Current

> 250 mA AC

Measuring Frequency

94 Hz, 105 Hz, 111 Hz, 128 Hz selected manually or automatically (AFC)

Measuring Range

0.020 Ω - 300 kΩ

 

Display Range

0.001 Ω - 2.999 Ω

3.00 Ω - 29.99 Ω

30.0 Ω - 299.9 Ω

300 Ω - 2999 Ω

3.00 kΩ - 29.99 kΩ

30.0 kΩ - 299.9 kΩ

Resolution

0.001 Ω

0.01 Ω

0.1 Ω

1 Ω

10 Ω

100 Ω

Accuracy

+/- (2% of RDG + 2 digits)

Operating Error

+/- (5% of RDG + 5 digits)

Measuring Time

Typical 6 s

Max. Interference Voltage

24 V, with higher voltages measurement will not be started

Max. Overload

Urms max. = 250 V

 

 

Resistance Measurement (R DC)

Measuring Method

Current- voltage measurement as per IEC61557-4 possible

Measuring Voltage

20 V DC

Short Circuit Current

250 mA DC

Formation of Measured Value

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.

Measuring Range

0.020 Ω - 300 kΩ

Display Range

0.001 Ω - 2.999 Ω

3.00 Ω - 29.99 Ω

30.0 Ω - 299.9 Ω

300 Ω - 2999 Ω

3.0 kΩ - 29.99 kΩ

30.0 kΩ - 299.9 kΩ

Resolution

0.001 Ω

0.01 Ω

0.1 Ω

1 Ω

10 Ω

100 Ω

Accuracy

+/- (2 % of RDG + 2 digits)

Operating Error

+/- ( 5% of RDG + 5 digits)

Measuring Sequence

Approx. 2 measurements/s

Measuring Time

Typical 4 s including reversal of polarity (2-pole or 4-pole)

Maximum Interference Voltage

≤ 3 V AC or DC, with higher voltages measurement will not be started

Maximum Inductivity

2 Henry

Maximum Overload

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 (clamp), R ac, and R dc 2-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.

 

 

Stakeless Ground Loop Measurement (Two Clamp Stakeless)

Switch Position

RA 4-pole (two clamp Stakeless)

Resolution

0.001 Ω - 0.1 Ω

Measuring Range

0.02 Ω - 199.9 Ω

Accuracy

+/- (7 % RDG + 3 digits)

Operating Error

+/- (10% RDG + 5 digits)

Measuring Voltage

Vm = 48 V AC (primary)

Measuring Frequency

128 Hz

Noise Current (IEXT)

Max. IEXT = 10 A (AC) (RA < 20 Ω)

Max. IEXT = 2 A (AC) (RA > 20 Ω)

 

 

 

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