TRIO TeST & MeaSUReMeNT
23
Copyright 2015 all rights reserved
Operation
Select the appropriate RCD test option from the Other
Appliance menu; use the F1 and F2 keys to scroll up and down
the list of options.
Portable RCDs (10 or 30mA)
Start the selected portable RCD test by pressing the “Start”
button. A message on the LCD display will then instruct you to:
1. Use “Run Test” socket i.e. connect the RCD between
the Run Test socket and the Standard 240V Plug on the
Pro Logger or, on the Nanto, the IEC to 240V Mains Plug
adaptor if using.
2. Press “Start” to display: ARM RCD then hit START.
Pressing “Start” will test the RCD Lead as an Extension
Lead (polarity, continuity and leakage current).
3. The next step will test the Trip Time (0° crossing) for the
RCD. Pressing “Start” will initiate the test and then display
the trip time in milliseconds together with a “Pass” or “Fail”
message.
4. To ensure the RCD has been tested on both raising and
falling edges of the mains cycle, the
SafeTcheck
will then
prompt you to perform a 180° test by resetting the RCD and
pressing “Start” (this test is optional). After the RCD trips,
the trip time will be displayed in milliseconds together with
a “Pass” or “Fail” message.
Note:
Pressing "Reset" after each RCD trip time test
will move you quickly to the next screen.
Fixed RCDs (10 or 30mA)
A Fixed RCD refers to an RCD in the mains power circuit
supplying the
SafeTcheck.
Start the selected Fixed RCD test by pressing the “Start”
button. A warning will be displayed stating “Power will fail
during this test”.
Press the “Start” button again to initiate the test. After the
RCD trips, the trip time will be displayed in milliseconds
together with a “Pass” or “Fail” message. The
SafeTcheck.
will provide power to the display while the RCD is reset and
mains power is returned.
The
SafeTcheck.
will then prompt you to perform a 180° test
by resetting the RCD and then pressing “Start” (this is an
optional test, ensuring the RCD has been tested on both raising
and falling edges of the mains cycle). After the RCD trips,
the trip time will be displayed in milliseconds together with a
“Pass” or “Fail” message. In earlier models the screen will be
active for 2 minutes to enable you to record the time.
WaRNINg
1
When the
SafeTcheck
is in the RCD test mode,
240VAC is present on the front panel Test Socket
2 Do not connect an appliance to a Portable RCD under
test
3 When testing a Portable RCD do not use the front
panel “IEC 240V Test Plug”. Only use the “Standard
240V Test Plug”
4 Care should be taken when tripping any Fixed RCD
(causing a sudden loss of mains power) that other
equipment, reliant on power from that circuit, will not
be damaged.
Note 1: Rcd Trip Time Threshold (Portable 30ma
Rcd Test function)
When testing Portable RCDs the trip
current is suddenly applied and the trip time measured.
In the case of 30mA Portable RCDs the acceptable
trip time is
≤
300mS however at 150mS (a threshold
considered good practice AS37060:2010) the Pro Logger
will fail the RCD in Firmware below Firmware Version
V4.46; for V4.46 and above the Pro Logger will provide
the user with a warning (not a fail) if the Trip Time is
≥
150mS but
≤
300mS.
Note 2:
In some cases a previously tested and safe
extension lead may be required to connect the
Standard 240V Test Plug and the female socket of the
RCD under test.
Note 3:
If Data Logging is switched on then additional
information will be requested. See section entitled
”Data Logging”
Note 4:
If there are no batteries in the
Nato
and it is
on mains power the Fixed RCD Test is not available.
RCD Tester
