User manual
GRT300-EU-EN-V1.0 4/11
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Features
• Microprocessor controlled with advanced safety features
• Two line LCD display
• Auto-Ranging
• Earth resistance testing with four ranges: 0-2Ω/0-20Ω/0-200Ω/0-2kΩ
• Earth voltage measuring range of 0-300Vac
• Automatic C spike check.
• Automatic P spike check.
• 2-wire test
• 3-wire test
• 4-wire test
• Auto power off
• Data hold
• Safety standard: EN 61010-1 CATIV 300V, EN 61326-1
Meter Description
1. C1 terminal
(Black test lead connection)
2. P1 terminal
(Green test lead connection)
3. P2 terminal
(Yellow test lead connection)
4. C2 terminal
(Red test lead connection)
5 Display
6. Rc LED
7. Rp LED
8. 2 Wire button
9. 3 Wire button
10. 4 Wire button
11. ACV button
12. Power button
13. TEST/STOP button
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