User manual

60
Electrical Testers
Phase and Motor Rotation Meter
Features & Benefits
■ Indicates phase presence / rotation
■ Indicates motor rotation / wiring
■ Phase rotation and motor rotation
indicator works from as low as 1 Vac
■ IEC / EN 61010-1 CAT III 600 V / CE
The 302 is a 3-phase presence and rotation
meter combined with a 3-phase motor
rotation tester. It provides the quickest and
easiest means for servicing, and repairing
3-phase systems and 3-phase rotating
machinery.
The battery-powered insulation testers
models 300, 305, 307A and 308A are
intended primarily for periodic testing of
industrial motors, transformers, electrical
wiring, and cable insulation. Low readings
may point to insulation deterioration that
can indicate impending failure. Early
detection permits replacement during routine
maintenance rather than risking production
downtime. Insulation testers are also useful
for safety testing of TV sets and appliances
to assure that no hazardous leakage current
is present.
Specifications 300 305 307A 308A
Type Analog Analog Analog Digital
Output Voltage 1,000 VDC 500 VDC 1,000 VDC 1,000 VDC
Maximum current 250 µA 500 µA 1.3 mA 1.2 mA
Resistance Range 1 MΩ -2000 MΩ 0.2 MΩ - 1,000 MΩ 0-400 MΩ 0-2,000 MΩ
Center Scale 50 MΩ 20 MΩ 1 MΩ, 2 MΩ, 4 MΩ Does not apply
Weight 15 oz. (430 g) with batteries 2.6 lbs (925 g) with batteries
Dimensions (W x H x D)
6.66 x 4.18 x 1.42"
(169 x 106 x 36 mm)
7 x 8.5 x 3.5"
(180 x 220 x 90 mm)
Models 307A & 308A
■ Selectable 250 V, 500 V, or 1000 V
insulation test
■ Low resistance test
■ Extra rugged integral carrying case
■ Live circuit indicator warns of safety
hazard
■ IEC / 61010-1 CAT III 600V / CE
Models 300 & 305
■ Test insulation resistance
■ Measure AC voltage to 600 V
■ Battery powered
■ 1000 V, 2000 MΩ (Model 300)
■ 500 V, 1000 MΩ (Model 305)
Model 302 Model 307AModel 301
AC Line Separator
The 301 provides temporary separation of
conductors to facilitate measurement of
current with an AC current clamp meter.
Features & Benefits
■ X10 Mode allows for more accurate
measurements of low amperage devices
■ 2 mm voltmeter measurement points
■ Integrated ground conductor (three
pronged US standard plug)
■ 15 A maximum capacity
Insulation Tester