6
LCD DISPLAY
FRONT PANEL
Loop test type
indicator (tripping or
non-tripping test)
Fuse
Blown
Warning –
refer to
User manual
Battery
status
Measurement
ranges
Measured results
Phase
rotation
Test
Lock
Supply connection indicators
L-PE, L-N, N-PE
Test lead
connections
RCD range
select:
10mA (RCDT320 only)
30mA
100mA
300mA
500mA
1000mA (RCDT320 only)
Neck strap
slots
Test selector:
∆
x I RCD trip time
1 x I RCD trip time
5 x I RCD trip time
AUTO (RCDT320 only)
Ramp (RCDT320 only)
V - AC/DC volts RMS
Hz – Frequency
(RCDT320 only)
Front panel cover
(folded under
instrument)
Backlight On/Off
(LT320 only)
RCD type selector:
AC
AC Selective
DC (RCDT320 only)
DC Selective -
(RCDT320 only)
Test
button
& Test
lead null
0º/180º
selector
LCD Display
Noise
RCDT300_UG_en_V01 07/05/2004 12:07 pm Page 6