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현재위치 : Home > 전기/전자 계측기 > 표준저항측정 > Resistance Measurement > 접점저항 측정기 - 5897
접점저항 측정기 - 5897
상품가격 : 가격문의
제조원/원산지 : Tinsley/영국
구매수량 :
결제금액 : 가격문의
접점저항 측정기 (Portable 100A Precision Micro-Ohmmeter)
▣ 최대전류 100A
▣ 정밀도 : 0.2%
▣ 차단기, 스위치기어, 릴레이류의 접점저항 측정
▣ 연구개발시험, 현장시험 및 출장용임

Portable 100A Precision Micro-Ohmmeter

접점저항 측정기

 

An accurate mains/battery powered portable 100A  Micro Ohmmeter. Using the 4 terminal measurement technique the Tinsley 5897 gives basic accuracy of 0.2% and an overall resistance range of 0.1 mOhm to 40 Ohms.

With an internal mains re-chargeable battery supply the Tinsley 5897 may be used 밿n the field?for periods of up to 8 hours without requiring recharging. A standard RS232 computer interface is included that may be used for printing resistance values or downloading measurements that have been stored in the instrument뭩 memory. The Tinsley 5897 can be used fully auto-ranging or with manual range selection if required. Each of the 6 ranges has a choice of high or low measuring current. Current can be selected to be positive or negative, with the option of automatic reversal to eliminate the effect of thermal E.M.F.'s.

Control functions

6 measuring range controls (manual selection)
AUTO key for auto range
High/Low current control
3 Current direction measurement controls.
+ direction
- direction
Alternate (automatic reversal of + and -to eliminate thermal e.m.f. errors in measuring circuit)
Supply ON/OFF
Measure key
Print key
Calibration (CAL) control. Enables instrument internal reference standards to be calibrated by applying a set of external reference standards
Menu/Enter key to access additional functions
Time and date
Print mode
Baud rate
Data logging mode
RS232 for data and printer output
4 large 100A rated input terminals
Mains input charging socket
2 battery charge indicators

Measurement principle

A four terminal measurement principle to eliminate lead resistance

The 100A current is pulsed with a duty cycle of approximately 10%. Measurement value displayed continuously

Power supplies

Two internal, re-chargeable, sealed, lead acid batteries are fitted for external 100A test resistance current and internal measurement supply circuits

Two charge indicators show the state of charge. The built-in battery charger has a front panel mains input supply for 115v or 230V supply with fuses 

Digital display

A 4 digit 4000 count display provides resolution to 0.025% of full scale reading in a bright daylight viewing 20mm high LED display

Mechanical

A rugged, portable sealed ABS case, coloured grey

Size   460 x 380 x 160 mm

Nett Weight Approx 17Kg

Calibration

Provided with an in-house Tinsley Calibration Certificate traceable to National Standards via NPL

Specifications

Range Resolution Current Accuracy   Temperature Coefficient
(%reading + last digit)
% reading  Last digits
400mW 0.1 mW 100A/25A +/-0.4% +4 (0.04% +0.2)/ C
4000mW 1.0 mW 100A/25A +/-0.2% +4 (0.02% +0.1)/ C
40mW 10 mW 10A/2.5A +/-0.2% +4 (0.02% +0.1)/ C
400mW 0.1 mW 1A/0.25A +/-0.2% +4 (0.02% +0.1)/ C
4W 1.0 mW 100mA/25mA +/-0.2% +4 (0.02% +0.1)/ C
40W 10 mW 10mA/2.5mA +/-0.2% +4 (0.02% +0.1)/ C






 

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