KYORITSU KEW-4105A Earth Resistance Tester

KEW-4105A ฟังก์ชั่นการวัด

Earth Resistance Tester เครื่องวัดความต้านทานดิน

KEW-4105A จุดเด่น

• 3-Pole and 2-Pole Earth Resistance
• The latest circuit design permits the instrument to operate with the minimum of influence from earth voltage and earth resistance of auxiliary earth spikes
• Dust and drip proof (designed to IEC 60529 IP54)
• Earth resistance value can be read directly from the scale
• Designed to meet IEC 61010-1 safety standard
• Capable of measuring earth voltage
• Small and lightweight. Shock resistant new case material
• 2mA measuring current permits earth resistance tests without tripping earth leakage current breakers in the circuit under test

KEW-4105A ช่วงการวัด

Earth resistance measurement

Measuring range 0.00 - 1999Ω (20Ω/200Ω /2000Ω)

Display range

0.00 - 19.99Ω (20Ω)

0.0 - 199.9Ω (200Ω)

0 - 1999Ω (2000Ω)

Accuracy 

±2%rdg±0.1 Ω (20Ω)

±2%rdg±3dgt (200Ω /2000Ω)

Earth voltage measurement

Measuring range 0 - 200 V AC (50,60Hz)
Display range 0.0 - 199.9 V
Accuracy ±1%rdg±4dgt

KEW-4105A Power Supply

R6(AA)(1.5V) × 6

KEW-4105A ขนาดสินค้า

105(L) × 158(W) × 70(D) mm (including case lid)
Approx. 550g (including batteries and case lid)

KEW-4105A อุปกรณ์ที่มาในชุด

7095A (Earth resistance test leads (Red 20m, Yellow 10m, Green 5m/1set))
7127B (Simplified measurement probe)
8032 (Auxiliary earth spikes[2 spikes/1set])
9121 (shoulder strap)
9084 (Carrying case)
R6(AA) × 6, Instruction manual

KEW-4105A อุปกรณ์เสริม

7245A (Precision measurement cord set)
8259 (Adapter for measurement terminal)
9165 (Carring case [Hard])

KEW-4105A ข้อมูลจำเพาะ

Overload protection 

Earth resistance : 280V AC (10 seconds)
Earth voltage : 300V AC (1 minute)

Applicable standards

IEC 61010-1 CAT Ⅲ300 V Pollution degree 2
IEC 61010-2-030, IEC 61557-1,5, IEC 60529 (IP54)