Digi-Sense 20250-53 User Manual Download Page 1

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THE STANDARD IN PRECISION MEASUREMENT

User Manual

Industrial IP67-Rated Digital Multimeters

with NIST-Traceable Calibration

Model 20250-53

(4000 Count)

Model 20250-54

(4000 Count, True RMS)

1065DGMAN_20250-53-54 Manual.indd 1

8/16/2017 10:42:05 AM

Summary of Contents for 20250-53

Page 1: ...SION MEASUREMENT User Manual Industrial IP67 Rated Digital Multimeters with NIST Traceable Calibration Model 20250 53 4000 Count Model 20250 54 4000 Count True RMS 1065DGMAN_20250 53 54 Manual indd 1...

Page 2: ...provide years of reliable service Safety Safety Warnings The following safety information must be observed to insure maximum personal safety during the operation at this meter Measurements beyond the...

Page 3: ...ates that the operator must refer to an explanation in the manual to avoid personal injury or damage to the meter Caution risk of electric shock This WARNING symbol indicates a potentially hazardous s...

Page 4: ...anual 7 NIST traceable calibration report with data Meter Description Model 20250 53 1 NCV detection light 2 LCD with symbols 3 RANGE button 4 REL Relative button 5 MODE button 6 Rotary function switc...

Page 5: ...tton 10 PEAK button 11 Backlight button 12 V CAP Hz Temp jack 13 COM negative jack 14 Tilt stand and battery compartment are on rear of unit Symbols and Annunciators Continuity Low battery Diode test...

Page 6: ...ted to a device the display may show a random changing reading This is normal and is caused by the high input sensitivity The reading will stabilize and give a proper measurement when connected to a c...

Page 7: ...nds to exit the manual ranging mode and return to autoranging REL Button Model 20250 53 only The relative REL measurement feature allows you to make measurements relative to a stored reference value A...

Page 8: ...n captures the peak AC voltage or current The meter can capture negative or positive peaks as fast as 1 millisecond in duration 1 Set the rotary function switch to the A or V position 2 Press the MODE...

Page 9: ...into the positive V terminal 2 Set the rotary function switch to the V AC DC position 3 Press the MODE button to select AC or DC voltage 4 Connect the test leads in parallel to the circuit under test...

Page 10: ...e Measurement WARNING To avoid electric shock disconnect power to the unit under test and discharge all capacitors before taking any resistance measurements Remove the batteries and unplug the line co...

Page 11: ...50 53 or 35 20250 54 the audible signal will sound The display will also show the actual resistance in ohms Diode Test WARNING To avoid electric shock do not test any diode that has voltage on it 1 Se...

Page 12: ...MODE button until nF appears in the display 3 Insert the black test lead banana plug into the negative COM jack and the red test lead banana plug into the CAP positive jack 4 Touch the test probe tip...

Page 13: ...ad banana plug into the negative COM jack and the red test lead banana plug into the positive Hz jack 3 Touch the test probe tips to the circuit under test 4 Read the frequency in the display The digi...

Page 14: ...age source as shown 3 If voltage is present the NCV indicator light above the LCD will flash a bright red Specifications Accuracy is given at 65 to 83 F 18 to 28 C less than 70 RH DC Voltage Autorangi...

Page 15: ...ponse 50 to 400 Hz Maximum input 1000 V AC RMS DC Current Autoranging Range Resolution Accuracy 20250 53 20250 54 20250 53 20250 54 20250 53 20250 54 400 0 A 400 0 A 0 1 A 0 1 A 1 2 rdg 3 dgts 1 2 rdg...

Page 16: ...t protection 1000 V DC or 1000 V AC RMS Range Resolution Accuracy 20250 53 20250 54 20250 53 20250 53 20250 54 20250 53 400 0 400 0 0 1 0 1 1 2 rdg 5 dgts 0 8 rdg 5 dgts 4 000 k 4 000 k 1 1 1 0 rdg 2...

Page 17: ...C 3 rdg 5 dgts Test current Resolution Accuracy 1 ma typical open max 0 3 V 1 mV 10 rdg 5 dgts Temperature Model 20250 54 only Sensor type K thermocouple Overload protection 1000 V DC or AC RMS Diode...

Page 18: ...000 V DC AC RMS Display 4000 count LCD 13 16 21 mm high Polarity Automatic negative polarity indication Overrange indication OL mark indication is displayed Low battery indication Battery symbol is di...

Page 19: ...rops below operating voltage the battery warning symbol will appear in the right hand side of the LCD The battery should be replaced 2 Disconnect the test leads from the meter 3 Open the battery door...

Page 20: ...866 INNOCAL 1 866 466 6225 Fax 1 847 327 2993 E mail sales innocalsolutions com Web InnoCalSolutions com It is recommended that Digi Sense products are calibrated annually to ensure proper function an...