Clamp On Type Earth Resistance Tester with PC Interface
MODEL - KM-1720+
The new KM-1720+ Earth Resistance Tester is our company’s efforts for quality & the
pursuit of excellence through continuous innovation and improvement of the old product to a
complete upgrade. Its performance is mainly reflected in :
• The new design, panel 6 buton operation, the consistance performance.
• An increase of sound and light alarm, “beep - beep - beep -” alarm sound.
• Increase the interference signal recognition indicatior.
• Improved test stability.
• Stored data : 99 groups.
• Wider range : 0.01W - 1200W
• Lower power consumption : Maximum operating current not exceeding 50mA.
General Specification
• Display : 4 digit LCD, 47 x 28.5mm in length
• Jaw Opening : 65 x 32 mm.
• Calibration : Automatic self calibration
• Operating temperature :-20 ° C ~ 55 °C
• Operating humidity : 10% ~ 90%RH
• Protection grade : double insulation
• Sound & light alarm : “beep - beep - beep -” alarm sound, Flashing alarm symbol, By AL key to open, close, set
• Range selection : Automatic
• PC Interface : RS232 interface
• External Magnetic Field : < 40A/m
• External Electric Field : < 1V/m
• Sampling Time : 1 second
• Measurement Resistance Frequency : >1KHz
• Max. Resistance Measurement Resolution : 0.001W
• Resistance Measurement Range : 0.01 - 1200W
• Current Measurement Range : 0.00mA - 20.0A
• Current Measurement Resolution : 0.05mA
• Measured Current Frequency : 50 / 60 Hz
• Storable Measurement Data : 99 groups
• Setting range of Resistance Alarm Critical value : 1 - 199W
• Setting Range of current Alarm Critical Value : 1 - 499mA
• Weight : 1160g (inclusive of battery)
• Power Supply : 6VDC ( 4 x 5# Alkaline Battery).
• Dimension : 285 (L) X 85 (W) X 56 (D) mm.