Instruction Manual
16
06/23
These modes are supported by three user-adjustable timer settings.
Alarm (ON) Period
This is the period of time that an alarm will remain active. It may be adjusted from 0 to 5000ms. A
period less than 15ms may not provide adequate time to ensure that the relay changes state.
No-Alarm (OFF) Period
This is the period of time following an alarm that a further alarm is inhibited in
VERY SLOW
MODE
. It may
be adjusted from 0 to 5000ms. A period less than 20ms may lead to the relay remaining closed
between successive alarms.
HV Pause
This is the period of time following an alarm during which the HV output is disabled. It may be adjusted
from 0 to 5000ms. During the pause, the instrument will not generate HV and cannot detect flaws. This
may be considered as a way of extending the hardware delay noted in the description of
FAST
MODE
above.
Additionally, the following user comfort features may be configured:
Alarm Volume
(Main menu) as described. The unit incorporates a sounder whose volume is adjustable.
Warning Tick
(Main menu) the instrument can be set to emit a “tick” noise whenever HV is active. This may be
disabled.
Display Brightness
(Display Menu) the screen brightness can be adjusted.
Display Contrast
(Display Menu) the screen contrast can be adjusted.
For convenience, the instrument is provided with the following pre-set Operating Modes:
BS EN 62230
This mode pre-sets the Test voltage to 5kV, the alarm current threshold to 200µA, sets
FAST MODE
, the
ON and OFF times to 30ms, and HV Pause to 250ms. This setting is suitable for tests carried out in line
with the BS standard
Electric Cables – Spark-test method
.
If the
Full Custom Operation Mode
is selected, all functions may be adjusted by the user, unless
Manager Lock
has been activated.
Other pre-set Operation Modes may be added to this list in due course.
All function settings and selections will be retained when the instrument is shut down, provided the O/1
button on the front panel is operated, followed by turning the instrument off by use of the mains switch.
Turning off by the mains switch or unplugging will not retain any software settings made since the
instrument was last switched off using the O/1 button on the front panel.
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