LIMIT DM 620 Bedienungsanleitung Seite 22

MAINTENANCE
GB
Warning: Before opening the rear cover or battery cover of the meter, switch off the power supply
and remove the test leads.
1. General maintenance
1.1 Clean the meter casing with a damp cloth and mild detergent. Do not use abrasives or solvents!
1.2 If there is any malfunction, stop using the meter and send it for maintenance.
1.3 Maintenance and servicing must be carried out by qualified professionals or designated
departments.
1.4 Resistance measurement can be used to check the built-in 600 mA and 11 A fuses.
Operation (Picture 16a): Insert the red test lead into the
mA/μA input terminal to measure the resistance. If the LCD displays "OL", the 600 mA fuse is blown.
Insert the red probe into the A input terminal to measure the resistance. If the LCD displays "OL", the 11
A fuse is blown.
2. Battery/Fuse replacement (P 16b)
Battery: 4 × 1.5 V AAA batteries
Fuse: F1 Fuse 600 mA 1000 V Ф6 × 32 mm (mA/μA input terminal)
F2 Fuse 11 A 1000 V Ф10 × 38 mm (A input terminal)
When " " is displayed, please replace the batteries to ensure measurement accuracy.
Replacement steps:
• Turn the function dial to the "OFF" position and remove the test leads.
• Unscrew and remove the battery cover to replace the batteries and fuses.
Range
10 A
mA μA ≤20 MΩ
20
х
√
≤1 Ω OL
OL
terminal. Insert the red probe into the
DM 620
USB
P 16a
P 16b