THE MOTWANE’s Digital Insulation Tester Model I-12 is a compact, lightweight, handheld battery & mains operated device, (with the help of a mains eliminator) best suited for industrial use. I-12 is a 1kV insulation tester with a maximum range of 2GΩ for insulation resistance measurement. It is designed for low voltage insulation resistance testing in maintenance and services, which involves applications like cables, rotating machines, LT transformers, switchgear, and industrial installations. It has selectable test voltages of 50V, 100V, 250V, 500V, and 1000V. The insulation tester is provided with an added low resistance measurement along with AC/DC voltage measurements. It is developed to suit extreme environmental conditions.
The Insulation Resistance test is an essential test that helps to verify the condition of electrical insulations. The insulation resistance quality of an electrical system degrades with time, and with environmental conditions such as. temperature, humidity, moisture, and dust particles. This instrument is designed for routine and diagnostic testing like IR of high voltage electrical apparatus and is useful for the following segments
Electrical equipment (motors, transformers, machines, etc.)
Industrial, commercial & residential installations
Cables for distribution or the communication networks
Household appliances (washing machines, mixer, toaster, etc.)
Railway and metal industry applications
Display : 3 ½ digits LCD with a backlight
Analog Display : Logarithmic Scale
Display : 7 segment digits
Enclosure Material : Polycarbonate
Dimensions (W x H x D) : approx.102 mm x 209 mm x 44mm
Net Weight (Instrument) : approx. 600gm. (With battery excluding accessories)
Gross Weight (with accessories) : approx. 1 Kg.
Nominal Temp. Range : 0°C to 35°C
Operating Temp. : -20°C to 40°C (Full Range), 20°C to 60°C (Up to 100MΩ)
Storage Temp. : -25°C to 65°C
Relative Humidity : 90% RH at 40°C max
Battery : 6 X 1.5V cells IEC LR6 Alkaline
(Nickel-cadmium rechargeable cells may also be used)
(Battery symbol appears on the LCD screen, battery replacement is necessary.)
Input : 230VAC, 50/60Hz
Output : 12 VDC, 1000mA
Directives for CE : LVD:2006/95/EC., EMC: 2004/104/EC
Measurement Category : CAT III 1000V/CAT IV 600V Reinforced insulation
Relevant Standard Specifications : EN 61010-1:2010,EN 61326-1:2005
IP Rating (Dust & Water Protection) : IP 54
Type tested as per : IS 10656
|Measurement Function||Range||Resolution||Accuracy |
MΩ *1 (50V,100V)
|0.01 MΩ to 0.99 MΩ||10 KΩ (0.01 MΩ)||±(3% ± 2)||1200 V rms(10 sec)|
|≥ 1.0 MΩ to 99.9 MΩ||100 KΩ to (0.1 MΩ)||±(5% ± 2)|
|≥100 MΩ to 999 MΩ||1MΩ||±(10% ± 5)|
|0.01 MΩ to 9.99 MΩ||10 KΩ (0.01 MΩ||±(5% ± 2)|
|≥10 MΩ to 99.9 MΩ||100KΩ (0.1 MΩ)||±(5% ± 2)|
|≥100 MΩ to 999 MΩ||1 MΩ||±(10% ± 5)|
|1GΩ to 2GΩ||10MΩ||±(10% ± 5)|
|Low Ohms (Ω) *2||0 – 9.99Ω||0.01Ω at 100 mA||±(3% ± 2)|
|≥10Ω to 99.9Ω||0. 1Ω at 10 mA||±(5% ± 2)|
|Continuity Test Current 100mA||0 – 9.99Ω||0.01Ω||±(3% ± 2)|
|V AC/DC||25V – 450V||1V||±(2% ± 3)|
|450V – 600V||1V||±3%|
*1 For Insulation resistance range,
Terminal voltage on open circuit (DC) : – 0% to + 30% of rated voltage
Short Circuit current : < 2 mA
*2 For low Ohms/Continuity Ranges
*Open circuit voltage : 5V ± 2V d.c.
*Lead Resistance compensation : 0 – 9.99Ω
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