| Insulation Range |
Insulation Resistance: 0.1Ω - 2000 MΩ (0.1Ω -1000 MΩ for MJ160)
Accuracy: ±1.25% of fsd on a 2.8 in. (71.1mm) arc length |
| Nominal Test Voltages |
d.c: 100 V, 250 V, 500 V, 1000 V.
(MJ160 is 50 V, 100 V, 250 V, 500 V) |
| Accuracy |
250 V, 500 V, 1000 V +30%, -0% max.
50 V, 100 V, +40%, -0% max.
Midscale: 4 MΩ (2 MΩ for MJ160)
Short Circuit Current: 1.9 mA
(0.65 mA for MJ160)
Maximum Load Capacitance:
1μF with less than ±0.1" pointer movement
Discharge: Up to 1μF capacitance is discharged from 1000 V to less than 42.4 V in less than 4 secs
Resistance Range:0.1 - 5000 |
| Test Voltage Characteristics |
Open circuit Test
voltage: 3 V ±0.2 V
Short Circuit Current: 2 mA ±10%
Accuracy:
±1.25% of fsd on a 2.8 in. (71.1mm) arc length: |
| Safety Voltage Check |
Voltage measurement: 0.1 V - 600 V a.c; the meter is RMS calibrated and average responding
Safety voltage indicator: Indicates the presence of d.c. voltages.
Scaling is not the same as the a.c. meter. True d.c. voltage equals
scale reading divided by 2.22
Accuracy: 2.5% of full scale |
| Power Supplies |
MJ159 and MJ160: Low voltage brushless a.c. generator. Cranking speed between 130 rpm and 170 rpm
MJ359: Dual operation low voltage brushless a.c. generator or 120
V 50/60 Hz mains (line) supply
MJ459: Six IEC LR6 cells (AA) Battery life: not less than 1300
insulation or Resistance range tests
MJ559: Dual operation 120 V 50/60 Hz mains (line) supply and rechargeable battery. Six Ni Cad cells (e.g. AA, NEDA 15 NC) |
| Safety |
The instruments meet the requirements for double insulation to EC 1010-1(1995), EN 61010 (1995) to installation Category II, 300 V phase to earth (ground), 600 V installation Category I |
| Flash Test |
6 kV a.c. r.m.s. |
| Fuses |
500 mA (FF) 660 V Ceramic 50 kA HBC 11/4 x 1/4 in.
(32 mm x 6 mm)
7A (F) 440 V Ceramic 10 kA HBC
11/4 x 1/4 in. (32 mm x 6 mm)
100 mA (F) HBC 20 mm x 5 mm (for line protection only)
MJ359 and MJ559 only:
Power connection plug fuse 100 mA 240 V HBC (20 mm x 6 mm)
Mains power cord fused plug (when applicable) 3 A 250 V ceramic
HBC fuse to BS1362 11/4 x 1/4 in. (32 mm x 6 mm) |
| E.M.C. |
In accordance with IEC 61326 includes amendment No. 1. |
| Operating Temperature Range |
32° to 113°F (0° to 45°C) for battery operated models
14° to 122°F (-10° to 50°C) |
| Humidity Range |
Operating:
70% RH max. at 68°F (20°C)
60% RH max. at 95°F (35°C)
50% RH max. at 105°F (40°C)
Storage: 95% RH max. at 95°F (35°C) |
| Dimensions |
5.1 H x 4.9 W x 7 L in.
(130 H x 125 W x 180 L mm) |
| Weight |
Approximately 1 kg (2.3lb) |
| Cleaning |
Wipe disconnected instrument with a clean cloth dampened with soapy water or Isopropyl Alcohol (IPA). |