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10. Data hold and backlight on/off

Press the “Hold” button for data hold. Press and hold the “Hold” button for 3 seconds, the
backlight will turn on; press and hold the “Hold” button for 3 seconds again, the backlight
will turn off. The backlight will automatically turn off if there is no operation within 15
seconds.

11. Auto power on/off

In measurement process, if there is no operation within 15 minutes, the meter will
automatically power off.

In the auto power off mode, rotate function selection switch to OFF,

then rotate function selection switch to other ranges, the meter will power on.

If you do not like the auto power off function, turn on the multimeter and press the “Select”
button, the auto power off function will be canceled when there is no “APO” symbol on the
display screen.

Troubleshooting

If the instrument cannot work properly, please try the following tips to solve the general
problems. If the problems still exist, please feel free to contact us:

Official email:

[email protected]

Contact No.: 1-262-299-0397

(available for customers in the United States currently)

problem description

suggested solution

no display

turn on power;
replace battery

appears

replace battery

inaccurate

measured

values

replace battery

no current input

replace fuse

Instrument maintenance

RAGU 17B

is a precision instrument and user shall not modify the electric circuit.

1. Keep the instrument away from water, dust and shock.
2. Do not store and operate the meter under the condition of high temperature, high humidity,
combustible, explosive environment and strong magnetic field.
3. Wipe the case with a damp cloth and mild detergent, do not use abrasives or alcohol.
4. If the instrument is not operated for a long time, please take out the battery to avoid
leakage.
5. Pay attention to the status of the battery. When the LCD displays a flashing “

” symbol,

the battery shall be replaced.

Following the steps:

5-1. Loosen the screw on the back cover that secures the battery door and remove the battery
door;

Summary of Contents for 17B

Page 1: ...1 RAGU 17B DIGITAL MULTIMETER OPERATION MANUAL...

Page 2: ...eration Panel 7 2 DC voltage measurement 7 3 AC voltage measurement 8 4 DC current measurement 8 5 AC current measurement 9 6 Resistance measurement 9 7 Capacitance C measurement 9 8 Diode and continu...

Page 3: ...36V or AC voltage is higher than 25V check test leads for reliable contact correct connection and good insulation to avoid electric shock 3 When selecting function and range test lead must leave the...

Page 4: ...nty is one year starting on shipping date 2 2 The functions with are available for RAGU 17B Measurement Functions and Specifications Supported by 17B DC voltage DCV AC voltage ACV AC DC current mA uA...

Page 5: ...01A 600mA 0 1A 10A 1A Maximum allowable pressure drop 600mv Overload protection 600mA 600mA 250V fast acting glass fuse 10A 10A 250V fast acting ceramic fuse 2 3 4 AC current Range Accuracy Resolution...

Page 6: ...nstrument will take several seconds to make the reading stable It is normal 2 3 6 NCV measurement When switch to the NCV test function the instrument approached electric field beep sound changes accor...

Page 7: ...button for 3 seconds to turn on off the light 4 Select button 5 Relative selection button 6 Frequency and duty cycle conversion button 7 Function selection switch 8 10A current input socket 9 mA uA c...

Page 8: ...is DC current Press Select button to switch the mode B Rotate function selection switch to DCA Then connect the test leads to the tested circuit in series the tested current value and the current pola...

Page 9: ...to other circuits in parallel after connecting the test leads to current input sockets it will damage the fuse and the meter After measuring turn off the power of the circuit then disconnect test lead...

Page 10: ...easured value from the display screen When diode is connected in reverse direction polarity connection is wrong or diode is open circuit the display screen will show OL C Press the Select button to se...

Page 11: ...roblems If the problems still exist please feel free to contact us Official email service iragu net Contact No 1 262 299 0397 available for customers in the United States currently problem description...

Page 12: ...h the same standard 5 3 Close the battery door and secure the screw Content in this manual is considered correct If users find any errors or omissions please contact the manufacturer Please read the m...

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