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Summary of Contents for Sanwa DM508S
- Page 1 DM508S DM1008S PDM508S INSULATION RESISTANCE TESTER INSTRUCTION MANUAL Dempa Bldg., Sotokanda 2-Chome Chiyoda-Ku, Tokyo, Japan...
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Page 2: Read First: Safety Information
【1】Read First: Safety Information We thank you for your purchasing our product, the battery-driven insulation resistance tester. This is a DC resistance tester developed under the principle to provide new and unique design and function for the measurement of insulation resistance of each kind of electric equipments. -
Page 3: Applications And Features
11. Be sure to disconnect the test pin from the circuit when changing the function. 12. Never use tester with wet hands or in a damp environment. 13. Never use test leads other than the exclusive test leads. 14. Never open tester case except when replacing batteries or fuses. Do not attempt any alterations of original specifications. - Page 4 【3】Front View and Name of Each Part MΩ scale (insulation resistance) Pointer ACV scale Pointer DCV scale 0 position adjuster Battery check scale MΩ (insulation resistance) measuring Line side measuring switch terminal (LINE) Earth side measuring terminal (EARTH) Function control knob Finger guard Test lead with test pin (Red) Test pin...
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Page 5: Description Of Functions
・Function control knob and MΩ (insulation resistance) measuring switch by operating these two switches, the functions and ranges can be set as shown below. MΩ Set Range Measuring Position of Function Control Knob (Function) Switch (*) DM508S 500V/1000MΩ DM1008S 1000V/2000MΩ AC600V range 600V PDM508S 500V/100MΩ DM508S 500V/1000MΩ... -
Page 6: Measuring Method
How To Use Carrying Case During measurement, set the case as illustrated and hang it from the neck. ・Lid turns in To hang from the neck direction at pivot the A. during measurement ・Lay it along the bottom of the box and secure it by hooks marked by* Body securing band Body compartment... - Page 7 Before starting measurement, check the appearance , pointer 0 position (*), built-in battery and measuring lead in this order. (*The pointer 0 position is the 0 position of the DC60V scale or ∞ position of the MΩ scale.) Check start. Replace Check built-in battery.
- Page 8 5.3 Measurement of MΩ (Insulation Resistance) WARNING 1. Never apply a voltage to the measuring terminal when the tester is in the MΩ measuring range. 2. Prior to measurement, disconnect the measuring object (circuit) from the power supply. 3. Prior to measurement, make sure no voltage is applied to the circuit to measure by the AC600V range.
- Page 9 Measuring object Measurement of insulation resistance (MΩ) of electric equipment and circuits. Rated measuring voltage Model Rated measuring voltage DM508S 500V DM1008S 1000V PDM508S 500V Selection of a measuring range Turn the function control knob to (MΩ) / AC600V position.
- Page 10 ⑥ Turn on the MΩ measuring switch. (See [4] Description of Functions) ⑦ Read the indicated value. Use the MΩ scale. ⑧ Turn off the MΩ measuring switch. ⑨ Discharge the high voltage charged in the measuring object. See 5.4 Discharge Function. ⑩...
- Page 11 5.4 Discharge Function Reason of a need to discharge For safety, high voltage remaining in capacitive measuring objects such as capacitors and electric wire must be discharged to prevent accidents. Discharging method This procedure follows the step ⑧ of 5.3-4) ① When the MΩ measurement has been completed, turn off only the MΩ...
- Page 12 5.5 Measurement of ACV (AC voltage) (Measuring range is the AC600V range only) WARNING 1. Do not apply a voltage exceeding the maximum rated voltage of 600 VAC. 2. During measurement, do not operate the function control knob. 3. Do not measure a voltage with the MΩ measuring switch being pressed or raised.
- Page 13 5.6 Measurement of DCV (DC voltage) (Measuring range is the DV60V range only) WARNING 1. Do not apply a voltage exceeding the maximum rated voltage of 60 VDC. 2. Keep in mind the warnings of 5.5 described earlier. Measuring object DC voltages of batteries, etc. can be measured.
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Page 14: Specifications
【7】Specifications 7.1 Measurement Range and Accuracy .1 Accuracyassurance : 23℃±2℃ 45〜75％RH max. No condensaition .1 Attitude : Horizontal (±5° ) Model DM508S DM1008S PDM508S Rated measuring voltage Large numeral : 1st effective measuring scale MΩ Measuring value Small numeral : 2nd effective measuring scale Insulation （ ）... - Page 15 Service ambient condition : Altitude 2000 m max., environmental pollution Ⅱ. Built-in battery : Layer built type alkaline battery 6LR61 x 1 (9V) Max. power consumption : 2.0W~2.8W at MΩ range Continuous service hours : DM508S Approx 5.5hours When indicating the center DM1008S Approx 3.5hours...
- Page 16 SANWA ELECTRIC INSTRUMENT CO.,LTD. Dempa Bldg,Sotokanda2-Chome Chiyoda-Ku,Tokyo,Japan 02.02...
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