Electrical Insulation Tester 420001
SAFETY INFORMATION Read the following safety information carefully before attempting to operate or service the meter. To avoid damages to the instrument do not apply the signals which exceed the maximum limits shown in the technical specifications tables. Do not use the meter or test leads if they look damaged. Use extreme caution when working around bare conductors or bus bars. Accidental contact with the conductor could result in electric shock.
Safety symbols: Caution refer to this manual before using the meter. Dangerous voltages. Meter is protected throughout by double insulation or reinforced insulation. When servicing, use only specified replacement parts. CE Comply with EN-61010-1 1. SPECIFICATIONS 1-1 General Information Environment conditions: ① Installation CategoriesⅢ ② Pollution Degree 2 ③ Altitude up to 2000 meters ④ Indoor use only ⑤ Relatively humidity 80% max.
1000V/DCV. ,750V/ACV Sampling Rate: 2.5 times per second. Zero Adjustment: Automatic adjustment. Over Range Indicator: “OL” of highest digit is displayed. Low Battery Indication: The is displayed when the battery Voltage drop below the operating voltage. Operating Temperature: 0ºC to 40ºC (32ºF to 104ºF) and Humidity below 80% RH Storage Temperature: -10ºC to 60ºC (14ºF to 140ºF) and Humidity below 70% RH Power source: DC9V (6x1.
•))) 0.01Ω Resistance≤35Ω Short circuit current 5.8V 250Vrms ≧200mA DC Voltage Range Resolution Accuracy 1000V 1V Input Impedance +(0.8%+3) 10MΩ Overload Protection 1000Vrms AC Voltage (40Hz~400Hz) Range Resolution Accuracy Input Impedance Overload Protection 750V 1V +(1.2%+10) 10MΩ 750Vrms Meg OHMS Terminal Range Resoluti Voltage on 125V(0 0.125~4.000 MΩ 0.001MΩ +(2%+10) %~+10 4.001~40.00 MΩ 0.01MΩ +(2%+10) %) 40.01~400.0 MΩ 0.1MΩ +(4%+5) 400.
400.1~4000 MΩ 1MΩ +(4%+5) 1000V 1.000~4.000 MΩ 0.001MΩ +(3%+10) (0%~+1 4.001~40.00 MΩ 0.01MΩ +(2%+10) 0%) 40.01~400.0 MΩ 0.1MΩ +(2%+5) 400.1~4000 MΩ +(4%+5) 1MΩ 1mA @load 1MΩ ≤1mA 2. PARTS & CONTROLS 1.Digital Display 2.Data Hold Button; MAX/MIN 3.Lock Button 4.Backlight Button; ZERO 5.Test Button 6.Rotary Function switch 7.VΩ Jack 8.COM input jack 9. Pothook 10.
alligator clip of the test leads connected. The indicator should read 00.0Ω. When the leads are not connected the display will read infinity indicated by “OL”. This will ensure that test lead are under working condition. 2-4 Rotary Switch positions Turn the Tester on by selecting any measurement Lift ＜ 1000v,500v,250v,125v (4000MΩ) OFF 400Ω/BZ, 1000VDC,750VAC ＞ Right 2-5 Buttons and a display Indicators a). Button HOLD/MAX.
if in the 2nd time. pressing for 2 seconds, it will enter directly into the “LIGHT” status, and the LCD backlight light up. After 15 seconds, the backlight is shut off automatically, the same as pressing for 2 seconds within 15s.
3. INSULATION RESISTANCE MEASUREMENTS a)Turn the function switch from the “OFF” position to the left（4000 MΩ/1000V---4000/ MΩ500V---4000 MΩ/250V---1000 MΩ/125V）,and chose one of the voltage-block( there are 4 ranges namely, 4 MΩ40 MΩ400 MΩ4000 MΩ, can be switched automatically for every voltage-block.
4.LOW RESISTANCE (CONTINUITY) MEASUREMENTS a). Set the range switch to 400Ω/BZ Position b). Connect the red test lead to the V Ω terminal and black to the COM terminal. c). Connect the tips of the test leads to both ends of the circuit under The two test. read resistance in Ω on the LCD. ranges(40.00/400.0Ω) can be switched automatically; the primary display of the resistance in Ω, flashes in synchronous with the analog bar. d). When the impedance on circuit is below approximately ≤35Ω.
6.BATTERY SAVER (SLEEP MODE) The meter will automatically enter the “sleep mode” if there is no function change or button press for 10minutes, but it works as soon as you turn the rotary function switch or push down any button. 7.POWER TOOLS AND AMALL APPLIANCES This test would also apply to other similar equipment that has a line cord. For double insulated power tools, the megohmmeter lead shown connected to the housing would be connected to some metal part lf the tool(e..g chuck,blade).
armature, field coils and brush rigging by connecting one megohmmeter lead to each of them individually, leaving the other connected to the grounded motor housing. The above also applies to DC Gemerators.
CABLES Disconnect the cable from the line. Also disconnect opposite end to avoid errors due to leakage from other equipment. Check each conductor to ground and /or lead sheath by connecting one megohmmeter lead to a ground and /or lead sheather and the other megohmmeter lead to each of the conductors in turn. Check insulation resistance between conductors by connecting megohmmeter leads to conductors in pairs.
WARRANTY Sper Scientific warrants this product against defects in materials and workmanship for a period of one (1) year from the date of purchase, and agrees to repair or replace any defective unit without charge. If your model has since been discontinued, an equivalent Sper Scientific product will be substituted if available. This warranty does not cover probes, batteries, battery leakage, or damage resulting from accident, tampering, misuse, or abuse of the product.
