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Morris 57070 Instruction Manual

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Model 57070
DIGITAL
MULTIMETER

INSTRUCTION MANUAL

SAFETY INFORMATION
To ensure safe operation, and in order to exploit to the full
the functionality of the meter, please follow the directions in
this section carefully.
This multimeter has been designed according to IEC-1010 concerning
electronic measuring instruments with an overvoltage category CAT II
1000V, CAT III 600V and pollution 2.
Follow all safety and operating instructions to ensure that the meter is
used safely and is kept in good operating condition.
With proper use and care, the digital meter will give you years of
satisfactory service.
● PRELIMINARY
- When using the meter, the user must observe all normal safety
rules concerning:
Protection against the dangers of electrical current.
Protection of the meter against misuse.
- When the meter is delivered, check that it has not been damaged in
transit.
- Test leads must be in good condition. Before using verify that the
insulation on test leads are not damaged and/or the lead wires are
not exposed.
- Full compliance with safety standards can be guaranteed only if used
with test leads supplied. If necessary, they must be replaced with the
same model or same electric ratings.
● DURING USE
- Before using, you must select the right input jack, function and range.
- Never exceed the protection limit values indicated in specifications
for each range of measurement.
WARNING
- 1 -

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Summary of Contents for Morris 57070

  • Page 1: Instruction Manual

    To ensure safe operation, and in order to exploit to the full the functionality of the meter, please follow the directions in this section carefully. Model 57070 This multimeter has been designed according to IEC-1010 concerning electronic measuring instruments with an overvoltage category CAT II DIGITAL 1000V, CAT III 600V and pollution 2.
  • Page 2 ~ Alternating current - When the value scale to be measured is unknown beforehand, set the range selector at the highest position. Direct current - Do not measure voltage if the voltage on the terminals exceeds Diode 1000V above earth ground. H This indicates that the display data is being held.
  • Page 3: Specifications

    ● NAMES OF COMPONENTS - Power Supply: 1.5V×3 AAA battery. ⑴ LCD Display ° ° - Operating Temperature: 0℃ to 40℃(32 F to 104 F) ⑵ Panel ° ° - Storage Temperature: -10℃ to 50℃(10 F to 122 F) ⑶ H Button: This Button is used - Dimension &...
  • Page 4 OPERATING INSTRUCTION - Forward DC Current: approx. 1mA - Reversed DC Voltage: approx.2.8V ● DATA HOLD - Overload Protection: 250V DC or rms AC If you need data hold when measuring, you can press on “H” button, it DC Current will hold the reading;...
  • Page 5 NOTE: - Connect test leads in series with the load under measurement. - When only the figure ‘1’ is displayed, it indicates overrange situation - You can get reading from LCD. The polarity of red test lead will be and the higher range has to be selected. indicated.
  • Page 6: Maintenance

    - Connect the red lead to the anode, the black lead to the cathode of - Replace the battery cover. the diode under testing. - You can get reading from LCD. WARNING NOTE: Before attempting open the battery cover of the meter, be sure - The meter will show the approximate forward voltage drop of the that test leads have been disconnected from measurement diode.