Diagnostic tools

Menu navigation

Menu:

SYSt

Item:

c0

Values:

1, 2, 3, 4, 5, 6, 7, 8

Diagnotic tools are set of specialized features and tools that allow you to monitor clock’s functions.

You can choose from values:

1* (default value)	display test
2*	display of active alarms
3*	display of internal temperature
4*	display of test results
5*	display of calibration deviation
6*	passive DCF diagnostic menu
7*	display of line quality diagnostics
8*	GPS diagnostic menu

All values have accessible submenu.

Display test submenu

After entering this item, all segments of the display will light up.

Active alarms submenu

See the table below:

AL:--	if any alarm is not active
AL:xx	xx represents active alarm bit (to browse between active bits, use >> or PB2)

Internal temperature submenu

dd°C	dd represents internal temperature in °C example: 25 °C

Test results submenu

PASS	tested in production with pass result
FAIL	tested in production with failed result
Not	not tested in production

Calibration deviation submenu

-- --	calibration deviation greater than 1000 ppm
0xxx	calibration deviation greater than 100 ppm
xx.xx	calibration deviation less than 100 ppm

Negative deviation is indicated by a lit dot at the first digit.

Currently running calibration is indicated by a flashing decimal point.

Passive DCF diagnostic menu

xx:yz – display during the minute, i.e. when receiving bits

xx	number of bits received in the current minute, ideally the counter corresponds to the current seconds value (range 0-58)
y	value of the last received bit (value 0 or 1)
z	the number of consecutive telegrams received with time that were decoded without error, range 0-9, value greater than 9 is then displayed with a decimal point, i.e. 9.

At one full minute (or if there is a pause between incoming bits of approx. 2 seconds), i.e. it is assumed that the whole telegram is received, a screen is displayed which shows the result of the telegram processing:

--:-z	indicates successful processing of the DCF telegram, when z indicates the current value of the counter of consecutive received telegrams
Er:dd	value dd corresponds to the possible states listed bellow

States
0x01	incorrect number of received bits
0x02	missing start bit for the beginning of the telegram
0x04	missing start bit for time reception
0x08	parity error when decoding the minutes value
0x10	parity error when decoding the hours value
0x20	parity error in date decoding
0x40	invalid decoded time range
0x80	invalid decoded date range

Line quality diagnostics submenu

The individual parameters are displayed as submenu items. You can browse between individual parameters by pressing the >> or PB2.

Sc	detected synchronization signal source type submenu
u	detected synchronization signal quality submenu
Er	number of synchronization signal processing errors submenu
t	countdown of the time limit in seconds for restarting the synchronization signal detection process submenu
St	synchronization signal processing status submenu

Detected synchronization signal source type

Sc:--	the synchronization source is not yet identified when auto is selected
Sc:xx	value xx indicates the type of the identified link, the displayed value corresponds to the description of the SYNC menu item o2 (Type of synchronization)

Detected synchronization signal quality

u---	the synchronisation signal is not yet correctly detected
uxxx	value xxx corresponds to the percentage of the synchronization signal processing quality

Number of synchronization signal processing errors

Er:xx	value xx in range 0–99
Er:99.	counter value is greater than 99

Countdown of the time limit in seconds for restarting the synchronization signal detection process

With successful signal processing, the countdown never reaches zero.

txxx	value xxx in range 0–999
t999.	counter value is greater than 999

Synchronization signal processing status

St:xx	value xx corresponds to the possible states

States
0	unknown
1	line detected
2	line frame detected
3	line frame checked
4	line time detected
5	time zone detected

GPS diagnostic submenu

St	GPS status
	EE	GPS module error. Not present or not communicating.
	--	GPS not detected
	2d	2D Fix – GPS detected in 2D mode
	3d	3D Fix – GPS detected in 3D mode
Su	Number of satellites used to calculate position
SA	Number of available satellites
PP	Position Determination Accuracy (PDOP)
	HI	Highest PDOP < 1.0
	1-2	High
	2-5	Good
	5-10	Sufficient
	10-20	Low
	LO	Very Low PDOP > 20