Cleaning And Maintenance - Perel EVM890 Manual Del Usuario

7. Cleaning and Maintenance

Your EVM890 is an example of superior design and craftsmanship. The following suggestions will help you care for
the multimeter so you can enjoy it for years:
• Keep the multimeter dry. If it gets wet, wipe it dry immediately.
• Use and store the multimeter only in normal temperature environments. Temperature extremes can shorten the
life of electronic devices or damage batteries.
• Handle the multimeter gently and carefully. Dropping it can damage the circuit boards and case and can cause
the multimeter to work improperly.
• Use only fresh batteries of the required size and type. Always remove old or weak batteries.
If you do not plan to use the multimeter for a month or more, remove the batteries. This protects the multimeter
from possible leakage.
• Disconnect the test probes before opening the multimeter.
• Replace blown fuses only with same size and type:
F: F 0.2A/250V
• If any faults or abnormalities are observed, do not use this device and let it check by authorised personel.
• Never use the meter unless the back cover is in place and fully fastened.
• To clean the meter, use a damp cloth and mild detergent only, do not use abrasives or solvents.
8. Specifications
Accuracy is specified for a period of one year after calibration and at 18°C to 28°C with relative humidity to 75%.
General
Max. voltage between terminal and earth
Display
Fuse protection
Power supply
Ranging method
Polarity indication
Overrange indication
Low battery indication
Operating temperature
Storage temperature
Dimensions
Weight
DC Voltage
Range
200mV
2V
20V
200V
1000V
Input impedance: 10MΩ on all ranges
Overload protection: 1000V DC or peak AC on all ranges
EVM890_v2
1000V DC or 700V AC rms (sinus)
3 ½ digit LCD, 2 - 3 readings per sec.
200mA range: F 0.2A/250V
20A range: none
9V battery
Manual
" - " displayed
" 1 . " displayed automatically
" " displayed
0°C to 40 °C
-10°C to 50 °C
88 x 170 x 38 mm
340 g (incl. battery)
Resolution
100µ V
1mV
10mV
100mV
1V
Accuracy
± 0.5% of rdg ± 1 digits
± 0.8% of rdg ± 2 digits
7 PEREL