FLUKE 1625-2 / 1623-2
- 접지저항계
- 자동 주파수 제어 / R* 측정 / 조정 가능 제한 (F1625-2 only) 
- 네가지 유형의 접지 측정 가능
1625-2,1623-2 접지저항계

Fluke 1625-2/1623-2 GEO Earth Ground Testers

 

 

Fluke 1623, 1625 접지저항계는 데이타를 저장, 전송, 다운로드할 수 있는 USB 포트를 제공하고 세계적인 수준의 악세사리를 제공하여 테스트 과정을 단순화하여 시간을 감축시킵니다.

 

 

※ 측정방법

 

• 3극 및 4극 전위차(접지봉 사용)

• 4극 토양 저항률 테스트(접지봉 사용)

• 선택식 테스트(클램프 1개와 접지봉 사용)

• 접지봉이 없는 테스트(클램프 2개만 사용)

 

 

※ Fluke 1625-2의 고급 기능

 

• 자동 주파수 제어(AFC) – 기존 간섭을 식별하고 간섭의 효과를 최소화하는 측정 주파수를 선택하여 더 정확한 접지 값 제공

• R* 측정 – 55Hz에서 접지 임피던스를 계산하여 고장 접지(fault-to-earth)가 확인되는 접지 저항을 더 정확하게 반영

• 조정 가능 제한 – 더 빠르게 테스트 수행

 

 

※ 옵션 악세사리

송신탑의 개별 레그에 대해 선택식 테스트를 수행할 수 있는 320mm(12.7인치) 스플릿 코어 변압기 

 

※ 제품비교

 

제품

1621

1623-2

1625-2

1630

전위차 3극 • • •  
4극/토양   • •  
선택식 1 클램프   • •  
접지봉없음 2 클램프   • • •
2극 방법 2극 • • •  

Display: 1999 digit LCD
Display with special symbols, digit height 25 mm, fluorescent backlight
User interface
Instant measurement through TURN and START one button concept. The only operating elements are rotary switch and START button
Robust, water and dust resistant
Instrument is designed for tough environmental conditions (rubber protective cover, IP56)
Memory
Internal memory storage up to 1500 records accessible via USB port
 
Operating temperature
-10 °C to 50 °C (14 °F to 122 °F)
Storage temperature
-30 °C to 60 °C (-22 °F to 140 °F)
Temperature coefficient
± 0.1 % of reading/°C <18 °C >28 °C
Intrinsic error
Refers to the reference temperature range and is guaranteed for 1 year
Operating error
Refers to the operating temperature range and is guaranteed for 1 year
Climatic class
IC1 (IEC 654-1), -5 °C to +45 °C (23° to +115° F), 5 % to 95 % RH
Protective type
IP56 for case, IP40 for battery door according to EN60529
Safety
Protection by double and/or reinforced insulation. max. 50 V to earth. IEC61010-1: 300V CAT II, Pollution degree 2
EMC (emission immunity)
IEC61326-1: Portable
Quality system
Developed, designed and manufactured according to DIN ISO 9001
External voltage
V ext, max = 24 V (dc, ac < 400 Hz), measurement inhibited for higher values
V ext rejection
120 dB (162⁄3, 50, 60, 400 Hz)
Measuring time
Typical 6 seconds
Max. overload
250 V rms (pertains to misuse)
Auxiliary power
6 x 1.5 V Alkaline (type AA LR6)
Battery life span
Typical > 3,000 measurements
Dimensions (WxHxD)
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 7.6 kg (16.8 lb)
incl. accessories and batteries in carrying case
 
Switch position
RA 3-pole
Resolution
0.001 Ω to 10 Ω
Measuring range
0.020 Ω to 19.99 kΩ
Accuracy
± (2 % rdg + 3 d)
Operating error
± (5 % rdg + 3 d)
 
Measuring voltage
Vm = 48 V ac
Short-circuit current
> 50 mA
Measure frequency
128 Hz
Probe resistance (RS)
Max 100 kΩ
Auxiliary earth electrode resistance (RH)
Max 100 kΩ
Additional error from RH and RS
RH[kΩ]•••RS[kΩ]/RA[Ω]•••0.2 %
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.
 
Switch position
RA 4-pole
Resolution
0.001 Ω to 10 Ω
Measuring range
0.020 Ω to 19.99 kΩ
Accuracy
± (2 % rdg + 3 d)
Operating error
± (5 % rdg + 3 d)
 
Measuring voltage
Vm = 48 V ac
Short-circuit current
> 50 mA
Measure frequency
128 Hz
Probe resistance (RS)
Max 100 kΩ
Auxiliary earth electrode resistance (RH)
Max 100 kΩ
Additional error from RH and RS
RH[kΩ]•••RS[kΩ]/RA[Ω]•••0.2 %
Monitoring of RS and RH with error indicator.
Automatic range selection.
 
Switch position
RA 3-pole with clamp
Resolution
0.001 Ω to 10 Ω
Measuring range
0.020 Ω to 19.99 kΩ
Accuracy
± (7 % rdg + 3 d)
Operating error
± (10 % rdg + 3 d)
 
Measuring voltage
Vm = 48 V ac
Short-circuit current
> 50 mA
Measure frequency
128 Hz
Probe resistance (RS)
Max 100 kΩ
Auxiliary earth electrode resistance (RH)
Max 100 kΩ
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.
 
Switch position
RA 4-pole with clamp
Resolution
0.001 Ω to 10 Ω
Measuring range
0.020 Ω to 19.99 kΩ
Accuracy
± (7 % rdg + 3 d)
Operating error
± (10 % rdg + 3 d)
 
Measuring voltage
Vm = 48 V ac
Short-circuit current
> 50 mA
Measure frequency
128 Hz
Probe resistance (RS)
Max 100 kΩ
Auxiliary earth electrode resistance (RH)
Max 100 kΩ
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.
 
Switch position
RA 4-pole 2 clamps
Resolution
0.001 Ω to 10 Ω
Measuring range
0.020 Ω to 19.99 kΩ
Accuracy
± (7 % rdg + 3 d)
Operating error
± (10 % rdg + 3 d)
 
Measuring voltage
Vm = 48 V ac
Measure frequency
128 Hz
Noise current (IEXT))
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.