FEATURES:
1. DIM-571 is a LCD Indicated instruments for insulation (M Ohm), Continuity (OHM) and AC Voltage
2. Three Insulation test voltage (DCV): 250V, 500V, 1,000V.
3. Large LCD display(68 x 34mm)
4. Test Insulation at rated voltate into 1 1mA load
5. 200mA short circuit continuity current.
6. Timer for test functions (3 ~ 5 minutes)
7. Data Hold function
8. Auto power off function
9. Automatic circuit dischage
10. Fuse proection
11. EN61010 CAT III 600V
12. BS 16"" Edition

Why Insulation Test Is necessary?A. Insulation:1. Every electrical apparatus and installation need to be safe for the user and for the equipment itself.2. Electrical conductors of electricity need to be insulated from each other so that they do not create electrical hazard or unnecesary consumption.3. Badly insulated circuits can create leakage current which can be dangerous and trip your GFCI, RCCB or ELCB.4. Each Country regulate those levels at which the insulation ia aceptable.Generally,

insulation resistance
measurements are done between each conductor and the earth, and between each conductors.B. ContinuityChecking the continuity of wires, complete circuits, connections, closure of contacts, circuit breakers, fuses, bounding resistance of connections, etc. are all very important.
INSULATION RESISTANCE:
Insulation Resistance:
1. Test Range DCV : 250V/500V/1000V
2. Meausuring Ranges(Auto) : 20/200/2,000M Ohm
3. Resolution: 0.01/ 0.1/ 1M Ohm
4. Output Voltage: Rated test voltage +10%
5. Output Current: 1mA DC
6. Power Consumption: Max consumption current Approx. 250mA
7. Accuracy: 20M Ohm : +/-(1.5% reading+ 5 dgts), 200M Ohm :+/-(2.5% reading + 3 dgts), 2000M Ohm : +/-(5% reading + 5 dgts)

CONTUNITY TEST
1.Measuring Ranges (Auto) 20/ 200/ 2000 Ohm
2. Resolution: 0.01 / 0.1/ 1 Ohm
3. Buzzer Sound Below: Under 1 Ohm
4. Open circuit Terminal voltage: 4V DC Min5. Short Circuit Terminal Current: 200mA DC Min6. Power Consumption: Max. Consumption current Approx. 300mA

AC VOLTAGE:
1. AC Voltage Ranges: 0 ~ 600V
2. Resolution: 1V
3. Line Frequency Range: 40 ~ 120 Hz
4. Accuracy: +/- (1.5% reading + 3 dgts)

GENERAL SPECIFICATIONS:
1. LCD : 3 1/2 Digits , 2000 counts
2. Over range display: 1
3. Dimension: 205 (L) x 90(W) x 55(D) mm
4. Weight: 600 g Approx. (battery included)
5. Power Source: 1.5V (SUN-3) x 6 Type AA
6. Accessories: Insutrion Manual , test leads, Fuse (0.5A, 250V), Batteries, Hard carrying case.