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Related Manuals for Triplett MG420
Summary of Contents for Triplett MG420
- Page 1 5 Commonwealth Ave 5 Commonwealth Ave Woburn, MA 01801 Woburn, MA 01801 Phone 781-665-1400 Phone 781-665-1400 User Manual Toll Toll Free 1-800-517-8431 Free 1-800-517-8431 Visit us at www.TestEquipmentDepot.com MG420 Analog Megohmeter/Insulation Tester...
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Page 2: International Safety Symbols
Introduction Congratulations on your purchase of the Triplett MG420 Analog Megohmmeter/Insulation Tester. The MG420 features three Insulation test ranges with a live circuit indicator, as well as low resistance and AC voltage measurements. The Power Lock On feature allows hands-free operation. - Page 3 Cautions Improper use of this meter can cause damage, shock, injury or death. Read and understand this user manual before operating the meter. Always remove the test leads before replacing the battery. Inspect the condition of the test leads and the meter itself for any damage before operating the meter.
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Page 4: Top View
Top View V Test Lead Input COM Test Lead Input Display Description Red: Megohmmeter Scale: Multiply reading by 0.5 (for 250V range), 1 (500V), 2 (1000V) Green: Low Resistance Scale (0 to 3 ) Green: Resistance Scale (0 to 500 Blue: AC Voltage Measurement Scale (0 to 600V) -
Page 5: Operation
Operation CAUTIONS Observe all safety precautions when the FUNCTION switch is set to the 250V, 500V or 1000V positions. Connect the meter test leads to the circuit under test before operating the TEST key. Do not touch the clip ends of the test leads when the TEST key is pressed. - Page 6 Press the Batt Check key. Observe the meter pointer. If the pointer falls in the BATT GOOD range of the bottom scale, batteries are good. If the pointer falls outside of (to the left of) the BATT GOOD area, replace the batteries.
- Page 7 Resistance Measurements WARNING: Do not run this test unless the voltage on the device under test is zero. If the Live Circuit status LED lights when a test is initiated, immediately abort the test and check that the circuit under test is not powered.
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Page 8: Battery Replacement
Battery Replacement If the Battery Check indicates low battery power, the 6 AA batteries must be replaced. Remove the test leads and turn the meter over. Unsnap the tilt stand from the rear of the meter. Remove the 4 Phillips head screws that secure the battery cover. Remove the battery compartment cover Replace the batteries, observing correct polarity. - Page 9 Below 80% Operating Humidity Altitude Up to 2000 meters Storage Temperature -10 to 60 C (14 to 140 Below 70% Storage Humidity 200 x 92 x 50mm (7.9 x Dimensions 3.6 x 2") Approx. 700g. (24.7 oz) with Weight batteries CATIII 1000V &...
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Page 10: Warranty
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.
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