User manual

DVM1090 GB 2
CAD II Overvoltage category II, pollution degree 2 per IEC1010-1
CAT III Overvoltage category III, pollution degree 2 per IEC1010-1
2.2 Maintenance
• Do not remove the back cover while a voltage is being applied. Only a qualified technician should handle repairs.
•
Always disconnect the test leads from all current sources before opening the meter.
• Replace the battery when the
symbol is displayed.
•
Replace blown fuses with an identical one or a fuse with identical voltage and current ratings : F 200mA/250V
(quick-acting, max. resistance 2Ω), F 10A/250V (“quick-acting”).
• Use a damp cloth and a mild detergent to clean the device. Never apply abrasives or solvents to the meter
•
Place the power switch in the OFF position when the device is not being used
• Remove the batteries to keep them from leaking if the device is to be stored for a prolonged period of time.
3. Front Panel Description
1. LCD display
2. L/C button : press this button prior to each individual
capacitance and inductance measurement in order to
calibrate the device.
3. Power button (
)
4. Range selector : used to select the desired function and
range
5. Front panel
6. Battery cover
7. 10A jack
8. Capacitor and
Ω
, °C, A, V, Hz and H-jack
9. COM jack
10. DC/AC button (DC/AC) : used for AC/DC voltage and
AC/DC current measurements. Place the button in the
pressed-down position for AC current or voltage
measurements or put it in the depressed position for DC
current and voltage measurements.
11. Backlight button (LIGHT)
12. Data-hold button (HOLD)
Low battery
Fuse
AC (alternating current)
DC (direct current)
buzzer for continuity
AC or DC (alternating current or direct current)