19
REPLACING THE BATTERIES
AND THE FUSES
The 1.5V batteries, as well as the 0.4 A HBC and 12 A HBC fuses for model
C.A 5220 G, are accessible at the back of the instrument.
Remove the lower half of the case after removing the three screws.
Replace the faulty elements, in accordance with :
- polarity for the batteries
- the value and the type of fuses
■
Fuse 0.4 A HBC - 600V min (6.3 x 32 mm)
■
Fuse 12 A HBC - 600V min (10.3 x 38 mm)
DESCRIPTION
(See p.80 and 81)
1 - LIQUID CRYSTAL DISPLAY
■
4000 measuring counts (digit height 10mm)
Rate : 2 measurements/sec
■
40 segment bargraph
Rate : 20 measurements/sec
NB : the bargraph is not operational for frequency and capacitance
measurements
■
Automatic display of all the symbols for controls, ranges and functions
■
, low battery indication
■
Overload indication :
- the 4 on the left flashes
- arrow at the end of the bargraph
2 - CONTROL BUTTONS
/ ~ and
Ω
Ω
Ω
Ω
Ω
/
To change from AC (~) to DC (
) and the reverse, on voltage and current :
To change from continuity ( ) to the measurement of resistance (
Ω
) and back,
on ohmmeter function.
NB :
Automatic selection of ~ and when it is switched On.
HOLD
To memorise the last measurement (digital and bargraph).
MIN.MAX (C.A 5220 G only)
To successively display the min or max values.
The C.A 5220 G then changes to manual range selection.
HOLD is also displayed. Min. acquisition time 500ms.
NB :
Press the HOLD button to read the min value
before disconnecting
the instrument
RANGE (C.A 5220 G only)
Range selection : To change from automatic mode to manual mode. A prolonged
press on this button allows you to exit the manual mode.
The automatic mode is selected when the instrument is switched On.
NB : This button also selects the sensitivity for the frequencemeter function (Hz).