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Summary of Contents for Digi-Sense 20250-60
- Page 1 User Manual Insulation Tester Model 20250-60 THE STANDARD IN PRECISION MEASUREMENT 1065DGMAN_20250-60 DS Insulation tester manual.indd 1 8/7/2017 2:09:49 PM...
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Page 2: Safety Precautions
Introduction The Digi-Sense Insulation Tester (Model 20250-60) is versatile and easy to use. The instrument is a must-have on your electrical tool belt. It safely measures insulation resistance of electrical devices such as cables or motor coils up to 4000 MΩ, as well as providing a means of measuring AC/DC voltages and circuit continuity. - Page 3 Safety Symbols Caution refer to this manual before using the meter. Dangerous voltages. Meter is protected throughout by double insulation or reinforced insulation. CE Compliance with EN-61010-1 Note: When servicing, use only specified replacement parts. Unpacking Check individual parts against the list of items below. If anything is missing or damaged, please contact your instrument supplier immediately.
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Page 4: Meter Description
Meter Description 1. Digital display 2. Data Hold button; Max./Min. 3. Lock button 4. Backlight button; Zero DT-5 505 Insulation Tester 5. Test button (1 ) (1 ) POL1 6. Rotary function LOBAT (1 ) (2 ) POL2 (2 ) (2 ) switch 7. - Page 5 Rotary Function Switch Positions Turn the tester on by selecting any measurement setting. HOLD Max/Min Button Instant-pressing the HOLD button the first time will hold the values at that instant in the primary display. Pressing it a second time will return it to current reading. Pressing and holding the button for 2 seconds will allow reading the MAX value, and an additional instant-pressing will switch it to display the MIN measured value.
- Page 6 Zero/Light Button Instant-pressing the ZERO/LIGHT button will zero the pri- mary display (mainly used for 400 Ω, the low resistance testing). Instant-pressing the button a second time will return the display to current reading. Pressing and holding the button for 2 seconds will cause the LCD backlight to turn on.
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Page 7: Setup And Operation
• Max, Min stands for the maximum or the minimum. • ZERO stands for digital zero adjusting. • HOLD button is pressed for the primary display. • AC, DC is the indicator for the voltage property. • V, MΩ, Ω are the measured dimension units. Setup and Operation Insulation Resistance Measurements 1. - Page 8 4. The test is completed by letting go of the TEST button or pushing down the TEST button if in the LOCK mode. This will shut off the high-voltage. The test resistance value will be shown in the primary display and held. The secondary display will show the insulation voltage remaining in the circuit.
- Page 9 AC/DC Voltage Measurements 1. Set the range switch to ACV or DCV position. 2. Connect red test lead to VΩ terminal and black test lead to terminal COM. 3. Connect test leads IN PARALLEL to the circuit being measured. 4. Read the voltage value on LCD. Battery Saver (Sleep Mode) The meter will automatically enter the sleep mode if there is no function change or button press for 10 minutes, but...
- Page 10 Motors AC - Disconnect the motor from the line by disconnecting the wires at the motor terminals or by opening the main switch. If the main switch is used and the motor also has a starter then the starter must be held, by some means, in the ON position.
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Page 11: Specifications
Maintenance and Repair Repairs or servicing not covered in this manual should only be performed by qualified personnel. Periodically wipe the case with a dry cloth. Do not use abrasives or solvents on this instrument. Battery Replacement 1. When the battery power is not sufficient for proper operation, the LCD will display indicating that batteries need to be replaced. - Page 12 Specifications (Continued) Display: Large LCD with dual display Measurement Range: 4000 MΩ/125 V, 4000 MΩ/250 V, 4000 MΩ/500 V, 4000 MΩ/1000 V, 400 Ω/BZ, 1000 V/DCV, 750 V/ACV Sampling Rate: 2.5 times per second Zero Adjustment: Automatic adjustment Overrange Indicator: “OL“ of highest digit is displayed Low Battery Indication: The is displayed when the battery voltage drop below the operating voltage...
- Page 13 OHMS Max. open-circuit Overload Range Resolution Accuracy voltage protection 40.00 Ω 0.01 Ω 5.8 V ±(1.2% +3) 250 Vrms 400.0 Ω 0.1 Ω 5.8 V Continuity Beeper Operation Max. open-circuit Overload Range Resolution resistance voltage protection Resistance •))) 0.01 Ω 5.8 V 250 Vrms ≤35 Ω...
- Page 14 Meg OHMS Short Terminal Test Range Resolution Accuracy circuit voltage current current 0.125 to 4.000 MΩ 0.001 MΩ ±(2% +10) 1 mA @ 4.001 to 40.00 MΩ 0.01 MΩ ±(2% +10) 125 V load ≤1 mA (0% to +10%) 40.01 to 400.0 MΩ 0.1 MΩ...
- Page 15 1065DGMAN_20250-60 DS Insulation tester manual.indd 15 8/7/2017 2:09:50 PM...
- Page 16 For Product and Ordering Information, Contact: Toll-Free: 1-800-358-5525 Toll-Free: 1-800-323-4340 Phone: 1-847-327-2000 Phone: 1-847-549-7600 Fax: 1-847-327-2700 Fax: 1-847-247-2929 Davis.com/Digi-Sense ColeParmer.com/Digi-Sense 1065DGMAN_20250-60 Manual Part No. 00101-95 1065DGMAN_20250-60 DS Insulation tester manual.indd 16 8/7/2017 2:09:50 PM...
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