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MR-REF & MR-REF3 Technical Manual
Issue 3, November 2013
6.6. System Settings.
This screen allows access to relay specific settings.
Such as, password functionality, screen contrast
settings etc. and non categorised relay settings.
These settings and their functions are explained in
detail below
Password.
If the password is set to enabled the default password (6363) may be used to change setting and reset statistical
data. If the password has been changed then the new password must be used.
Engineering Password
If enabled the Engineer Password will allow access using the standard password. Generally if a password is
requested a prompt will offer ‘AAAAA’, changing the second A to a B ‘ABAAA’ allows access.
Change Password.
The MR-REF & MR-REF3 default password is '6363'. It is recommended for security purposes this password is
changed. The password may be up to 6 characters long and alphanumeric if desired.
If the User Password is lost and the Engineers Password has been disabled the only options to retrieve the
password are to either read the information via the serial link or execute a Configuration Reset on the relay to
restore all of the factory defaults (see appendix 6).
Contrast and LCD Backlight.
These functions allow the user to change the display contrast and backlight levels.
Set Default Page / Default Return Time.
Any of the display scroll data pages can be nominated as the default page and returned to after a set period of key
press inactivity.
To set the page; select the required page in the main display scroll menu then enter the system settings menu and
select ‘set default page’.
Time Sync Delay.
The MR-REF & MR-REF3 can be time synchronised by either, Chronovision which is a GPS based device which
sits on the RS485 network and synchronises the time and date of each connected unit, or via broadcast command
on the daisy chained RS485 modbus network. This delay prevents immediate updating of the Relay real time clock
(RTC).
Software Version.
Displays the operating firmware loaded on to the unit. This should be noted along with the serial number when
corresponding about this equipment
Serial Number.
Displays the Serial number of the Relay.
System Settings
Y
Top
Password
Y
N
ENABLED
Summary of Contents for MR-REF
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