Maintenance And Storage - YATO YT-73091 Bedienungsanleitung

GB
Precision: ± (0,8% + 5)
Calculation of the error: 1,396 x 0,8% + 5 x 0,001 = 0,011168 + 0,005 = 0,016168
Result of the measurement: 1,396 V ± 0,016 V
Measurements of the voltage
Connect the measurement cables to the sockets marked as „INPUT" and „COM". Switch the range selector to the position of the
measurement of the direct voltage or alternating voltage. Connect the measurement cables in parallel to the electric circuit and read
the result of the Measurements of the voltage. Do not ever measure a voltage exceeding 600 V. It might damage the meter and cause
an electric shock.
Measurements of intensity of alternating current using pincers
Switch the selector to the adequate measurement range. Open the measurement pincers pressing the lever. Place a single live
alternating current conductor in the pincers and close them. Make sure the jaws of the pincers fit tight. In order to ensure the highest
possible precision of the measurement, make sure the conductor is placed in the central point between the pincers. An error caused
by an incorrect position of the conductor amounts to 1% of the measured value, but it may be avoided placing the conductor in the
correct position. Read the result of the measurement. During the measurement do not touch the unprotected live surfaces. It might
cause an electric shock.
Measurements of resistance
Connect the measurement cables to the sockets marked as „ VΩ" and „COM" and switch the range selector to the measurements of
resistance. Place the measurements leads at the terminals of the measured element and read the result of the measurement. In order
to ensure more precise results of the measurements, the measurement range may be changed if required. It is strictly prohibited to
measure the resistance of live elements. In case of measurements of values exceeding 1MΩ the measurement may take a couple
of seconds before the result is stable, which is a normal reaction during measurements of high resistances.
Before the measurement leads are placed at the measured element the symbol „O.L" is displayed.
Diode test
Connect the measurement cables to the sockets marked as „VΩ" and „COM" and switch the selector to the diode symbol. Use the
„FUNC." button to select diode testing. The diode symbol will be displayed. Place the measurement leads to the diode terminals in the
conduction direction and the reverse direction. If the diode is functioning correctly, then at the diode connected in the forward direction
we will read the voltage drop for this diode expressed in mV. In case the diode is connected in the reverse direction the display will
read „O.L". Correctly functioning diodes show a low resistance in the forward direction and a high resistance in the reverse direction.
It is strictly prohibited to test live diodes.
Conduction test
Connect the measurement cables to the sockets marked as „VΩ" and „COM". Use the „FUNC." button to select conduction test. The
buzzer symbol will be displayed. In case the meter is used for conduction measurements, the internal buzzer will emit sound each
time the measured resistance drops below 50 Ω. The buzzer may sound also within the range between 50 Ω and 120 Ω. It is strictly
prohibited to test the conduction of live circuits.
Measurements of temperature
Connect the thermoelement leads to the sockets marked as „ VΩ" and „COM". Switch the selector of the meter to „Temp". Use the
„FUNC." button to select the adequate measurement unit: F or C. Put the thermoelement to the measured object. The thermoelement
O O
supplied with the device permits to measure values up to 250 O C. In order to measure higher temperatures it is necessary to purchase
a thermoelement that permits to measure higher temperatures. It is required to use thermoelements type K.

MAINTENANCE AND STORAGE

Clean the meter with a soft cloth. Remove heavy soiling with a damp cloth. Do not submerge the meter in water or any other liquid.
Do not use solvents, caustic or abrasive substances to clean the meter. Make sure the contacts of the meter and the measurement
cables are clean. Clean the terminals of the measurement cables with a cloth slightly soaked with isopropyl alcohol. In order to clean
the contacts of the meter, turn the meter off and remove the battery. Turn the meter round and shake it slightly to remove major impuri-
ties from the contacts of the meter. Soak slightly a cotton swab in isopropyl alcohol and clean each contact. Wait until the alcohol has
evaporated and replace the battery. Store the meter in a dry place in the provided case.
O P E R A T I N G M A N U A L
10