Digi-Sense 20250-50 User Manual Download Page 1

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THE STANDARD IN PRECISION MEASUREMENT

User Manual

Compact Digital Multimeters

with NIST-Traceable Calibration

Model 20250-50

(2000 count, manual ranging)

Model 20250-51

(4000 count, autoranging)

1065DGMAN_20250-50, -51 Digi-Sense Compact Multimeter.indd 1

8/15/2017 8:23:17 AM

Summary of Contents for 20250-50

Page 1: ...ENT User Manual Compact Digital Multimeters with NIST Traceable Calibration Model 20250 50 2000 count manual ranging Model 20250 51 4000 count autoranging 1065DGMAN_20250 50 51 Digi Sense Compact Mult...

Page 2: ...rds Careful use of the meter will provide years of reliable service Safety These meters have been designed for safe use but must be operated with caution The rules listed below must be carefully follo...

Page 3: ...R operate the meter unless the back cover and the battery and fuse doors are in place and fastened securely NEVER use the meter if the meter or test leads look damaged or if you suspect that the meter...

Page 4: ...This symbol advises the user that the terminal s so marked must not be connected to a circuit point at which the voltage with respect to earth ground exceeds in this case 500 VAC or VDC This symbol ad...

Page 5: ...lease contact your instrument supplier immediately 1 Instrument 2 Test leads 3 One type K temperature probe model 20250 51 only 4 One 9 V battery 5 Carrying case 6 User manual 7 NIST traceable calibra...

Page 6: ...stand and battery compartment are on rear of unit Meter Description Model 20250 51 1 4000 count LCD with symbols 2 Rotary function switch 3 10 A positive jack 4 COM negative input jack 5 Positive inp...

Page 7: ...ter is not in use This meter has Auto Power Off that automatically shuts the meter OFF if 15 minutes elapse between uses 2 If OL appears in the display during a measurement the value exceeds the range...

Page 8: ...at no voltage is present CAUTION Do not measure AC voltages if a motor on the circuit is being switched ON or OFF Large voltage surges may occur that can damage the meter 1 Set the rotary function swi...

Page 9: ...er V DC positions to obtain a higher resolution reading The display will indicate the proper decimal point and value If the polarity is reversed the display will show minus before the value Model 2025...

Page 10: ...Measurements Model 20250 50 DC Current Measurement CAUTION Do not make current measurements on the 10A scale for longer than 30 seconds Exceeding 30 seconds may cause damage to meter and test leads 1...

Page 11: ...ead banana plug into the A jack 3 For current measurements up to 400 mA DC set the rotary function switch to the mA range and insert the red test lead banana plug into the mA jack 4 For current measur...

Page 12: ...ary function switch to the mA range and insert the red test lead banana plug into the mA jack 4 For current measurements up to 10 A AC set the rotary function switch to the 10A position and insert the...

Page 13: ...nce reading 4 Read the resistance in the display and then set the rotary function switch to the lowest position that is greater than the actual or any anticipated resistance The display will indicate...

Page 14: ...oximately 30 the audible signal will sound If the circuit is open the display will indicate 1 Model 20250 51 1 Set the rotary function switch to the position 2 Insert the black lead banana plug into t...

Page 15: ...ed devices will indicate near 0 mV and an open device will indicate I in both polarities Model 20250 51 1 Set the rotary function switch to position 2 Press the MODE button until the symbol appears in...

Page 16: ...nsert the black lead banana plug into the negative COM jack and the red test lead banana plug into the positive Hz jack 3 Press the MODE button to select Hz or 4 Touch the test probe tips to the circu...

Page 17: ...wish to measure temperature in C set the rotary function switch to the Temp C range 2 Insert the type K thermocouple probe black test lead banana plug into the negative COM jack and the red test lead...

Page 18: ...through the available ranges until you select the range you want 3 Press and hold the RANGE button for 2 seconds to exit the manual ranging mode and return to autoranging Data HOLD Button Model 20250...

Page 19: ...on again to resume normal operation Battery Test Model 20250 50 only 1 Insert the black test lead banana plug into the negative COM jack and the red test lead banana plug into the positive V jack 2 Se...

Page 20: ...quency range 50 to 60 Hz 20250 50 50 to 400 Hz 20250 51 Maximum input 600 V DC or 600 V AC RMS Range Resolution Accuracy 20250 50 20250 51 20250 50 20250 51 20250 50 20250 51 200 mV 400 0 mV 0 1 mV 0...

Page 21: ...250 V and 10 A 250 V fuse Maximum input 20250 50 200 mA DC on A mA ranges 10 A DC on 10 A range Maximum input 20250 51 400 mA DC or 400 mA AC RMS on A mA ranges 10 A DC or AC RMS on 10 A range Range...

Page 22: ...ts Sensitivity 0 5 V RMS while 1 MHz 3 V RMS while 1 MHz Overload protection 250 V DC or AC RMS Frequency for model 20250 51 only Autoranging Resistance Autoranging for model 20250 51 only Input prote...

Page 23: ...Accuracy 4 to 1400 F 1 F 3 rdg 9 F 5 C 20 to 760 C 1 C Test current Resolution Accuracy 0 3 mA typical 1 mV 10 rdg 5 dgts Temperature for model 20250 51 only Sensor type K thermocouple Overload protec...

Page 24: ...tion BAT displayed Measurement rate 2 times per second nominal Operating environment 32 to 122 F 0 to 50 C at 70 RH Storage temperature 4 to 140 F 20 to 60 C at 80 RH For inside use max height 7000 ft...

Page 25: ...ed or drop below the operating voltage BAT 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 by loosening...

Page 26: ...26 Notes 1065DGMAN_20250 50 51 Digi Sense Compact Multimeter indd 26 8 15 2017 8 23 18 AM...

Page 27: ...27 Notes 1065DGMAN_20250 50 51 Digi Sense Compact Multimeter indd 27 8 15 2017 8 23 18 AM...

Page 28: ...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 and accurate m...

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