Page 1
Digital Insulation Tester/Megohmeter Introduction Congratulations on your purchase of Triplett’s Digital Insulation Tester/Megohmmeter. The MG430 provides three test ranges plus continuity and AC/DC voltage measurement. A handy test lock feature and a data hold function are also included. This professional meter, with proper care, will provide years of reliable service.
Meter Description 1. LCD Display 2. Hold Button 3. Test Button Rotary Switch 5. Lock Button Backlight Button Input Terminals Operation Warning Ensure that the circuit under test does not include components that can be damaged by 1000VDC; such devices include power factor correction capacitors, low voltage mineral insulated cables, electronic light dimmers, and ballasts/starters for fluorescent lamps.
Page 3
Lock Function For hands-free operation, use the LOCK feature. 1. With the test leads connected to the equipment under test, simultaneously press the TEST and LOCK keys. 2. The LOCK icon” ” will appear on the display. A beeper will sound every 2 seconds to indicate that the meter is in Lock mode.
Page 4
Applications Measuring Power Tools and Small Appliances This section applies to any device under test that uses a line cord. For double insulated power tools, the meter’s leads should be connected to the device’s housing (chuck, blade, etc.) and the lines of the power cord.
Specifications Range Specifications Accuracies are specified as % reading + digits at 23 C ± 5 C < 80% RH MEGOHMMETER RANGES Accurac Range Resolution Terminal Voltage 200M 250V 0.1M ±3% + 5d 250V + 10% ~ -0% 200M 500V 0.1M ±3% + 5d 500V + 10% ~ -0% 0-1000M 1000VDC...
Page 6
DC VOLTAGE Input Range Resolution Accuracy Impedance Overload Protection ±0.8% + 1000VDC 1000Vrms RESISTANCE Max. Open Range Resolution Accuracy Circuit Overload Voltage Protection ±1% + 2d 4.5V 250Vrms 200k 0.1k ±1% + 2d 250Vrms 1.800.561.8187 information@itm.com www. .com...
Page 7
General specifications Display LCD with dual display Sampling rate 2.5 readings per second Continuity beeper <40 Ω, short circuit current <200mA, open circuit voltage 4.5V Over range indicator ‘1’ displayed Zero adjust Automatic Low battery indicator Low battery symbol displayed when battery voltage is low Environmental Installation category III, Pollution Degree 2...
Warranty Information Triplett / Jewell Instruments extends the following warranty to the original purchaser of these goods for use. Triplett warrants to the original purchaser for use that the products sold by it will be free from defects in workmanship and material for a period of (1) one year from the date of purchase.
Need help?
Do you have a question about the MG430 and is the answer not in the manual?
Questions and answers