TAG Heuer CHRONOPRINTER 520 User manual

Page 1
P R O F E S S I O N A L T I M I N G
CHRONOPRINTER 520
OPERATING INSTRUCTIONS
1. KEYBOARD DESCRIPTION.........................................................................................page 2
2. BACK CONNECTIONS DESCRIPTION .......................................................................page 3
3. START OF THE CP 520................................................................................................page 4
3.1 Batteries Installation – Batteries replacement ............................................................. page 4
3.2 Control of the paper capacity ......................................................................................page 4
3.3 Switch on of the device ...............................................................................................page 4
3.3.1 The CP 520 does not print (printer not activated) .......................................... page 4
3.3.2 The CP 520 prints ......................................................................................... page 5
3.4 Synchronization (SYNCHRO) ....................................................................................page 5
4. NET TIME MODE (default setting) ..............................................................................page 6
4.1 LCD explanations ....................................................................................................... page 6
4.2 Possible actions during the timekeeping ..................................................................... page 7
4.3 Keyboard shortcuts ..................................................................................................... page 8
4.4 Most usual timing operations ......................................................................................page 9
4.5 Rankings................................................................................................................... page 10
4.6 Mass starts or by group............................................................................................. page 11
5. REAL TIME MODE......................................................................................................page 12
5.1 SEQUENTIAL ........................................................................................................... page 12
5.2 START / FINISH ....................................................................................................... page 13
5.3 LAP TIME ................................................................................................................. page 13
6. MENU DESCRIPTION.................................................................................................page 14
7. CHANGING OF THE PAPER ROLL...........................................................................page 17
8. AUTONOMY – SPECIAL SITUATIONS......................................................................page 19
9. TECHNICAL SPECIFICATIONS.................................................................................page 21
10.RS 232 PROTOCOL ...................................................................................................page 22

Page 2
1. KEYBOARD DESCRIPTION
ON To switch on the device, (POWER ON). Press ON for 3 to 5 seconds (find
POWER OFF through the MENU).
F Enter and go out of the MENU.
R Recall of memorized times for identification (RECALL). "E1" at start or "E2"
at finish. RESET of the CP 520 to zero in sequential mode.
0 à 9 Enter time-of-day, a bib N°, a RUN or a TIME (INSERT).
✴
✴✴
✴False entry (cancellation of what you entered).
Validation or confirmation in the MENU.
# Validation of the access to the various sub-menus.
Validation (or confirmation) of a time or bib N°in the recall function R.
.
E1 Confirm a bib N°entered for a start.
E2 Confirm a bib N°entered for a finish.
▼Key DOWN : To explore the Menu and memorized times.
To disidentify a bib N°expected at the start.
▲Key UP: To explore the Menu and memorized times.
To disidentify a bib N°ready to start.
Red keys Block or unblock the external inputs (INPUT 1 and INPUT 2).
(2 x) Blocked = black bars (- - -) on the LCD display.
Green Key Manual keys for timing impulses or to start the time (SYNCHRO).
(1 et 2)

Page 3
2. BACK CONNECTIONS DESCRIPTION
INPUTS 1 & 2 Inputs for timing impulses.
Working contact without potential (short circuit or open collector).
Ex: Manual contactor (HL 18) or photocell HL 2-31 / 2-35).
Respect the polarities!
COMPUTER RS 232 / 9'600 baud data output.
For ON LINE or OFF LINE connection to a PC.
To drive a DISPLAY to show net and running times (HL 960 / HL 990 / HL
965).
POWER For an external power supply by:
Adapter HL 520-1 (110 ÷ 220 VAC / 12 VDC) or
12V batteries via our connection cable HL 520-8.
ST / SP / RS Auxiliary Input for:
START / STOP / RESTART. Start of the time, stop and restart it again (i.e.
Horse jumping) or
RESET (Resets the CP 520 to zero).
Caution ! The START / STOP / RESTART and RESET functions are possible only
with a synchronization at zero (for the SYNCHRO, the START function is
always activated).

Page 4
3. START UP OF THE CP 520
3.1 Batteries installation – Batteries replacement
To open the battery cover, you can help you with your thumbs by strongly pushing it in the direction of
the arrow.
Introduce the batteries by respecting the polarities indicated at the bottom of the compartment.
3.2 Control if the paper capacity is still sufficient
To change the paper roll, refer to chapter 7 - CHANGING OF THE PAPER ROLL.
3.3 Switch on the CP 520 in pressing the key ON for 3 to 5 seconds
Two possibilities: either the printer is not activated and the CP 520 does not print (point 3.3.1), or it is
activated and the CP 520 prints (point 3.3.2).
3.3.1 The CP 520 does not print:
The display indicates:
C
P
5
2
0
P
R
E
S
S
✴
✴✴
✴
T
O
C
H
E
C
K
P
A
R
A
M
E
T
E
R
S
.
O
R
#
T
O
C
O
N
T
I
N
U
E
You can visualize the parameters in pressing ✴and ▼or continue directly in pressing #.
Press #.
The display indicates:
E
N
T
E
R
T
I
M
E
F
O
R
S
Y
N
C
H
R
O
0
0
:
0
0
If you wish to use the printer, make sure the batteries are in good state.
To switch on the printer, enter in the menu in pressing Fand select PRINTER using the ▼,
confirm with #. Select PRINTER ON, press #. The CP 520 prints “PRINTER ON”.
The display indicates again:
E
N
T
E
R
T
I
M
E
F
O
R
S
Y
N
C
H
R
O
0
0
:
0
0
Please, continue in following the Point 3.4 – Synchronization (SYNCHRO).

Page 5
3. START UP OF THE CP 520 (continued)
3.3.2 The CP 520 prints
The memorized parameters used for the last timekeeping as well as the N°of the new run and
the remaining memory capacity.
The display indicates:
E
N
T
E
R
T
I
M
E
F
O
R
S
Y
N
C
H
R
O
0
0
:
0
0
IMPORTANT ! The CP 520 default setting is in NET TIME mode. We advise to follow the
start of the CP 520 in this mode in order to well understand the different CP
520 functions !
If necessary …at this point, you can:
Enter in the Menu to change parameters (PARAMETERS) or / and
Clear the memory – all precedent runs will be cancelled, the timing will
restart with RUN Nr 1 (CLEAR MEMORY) or / and
To change the TIMING MODE (consult the menu description on page 17 –
confirm every selection with #).
3.4 Synchronization (SYNCHRO)
The time can be started from 00:00 or with the time-of-day. Therefore, you must:
Insert the desired time (or 00:00 for a start at zero) and confirm with #
When the display indicates " READY FOR SYNCHRO ", give an impulse on INPUT 1 or INPUT 2,
manually or by the external inputs. Caution!! unblock the external inputs to receive the impulses
(unblocking = red keys). You are now ready to start your timekeeping !!

Page 6
4. NET TIME MODE (default setting)
Registration of start and finish times with competitor N°’s (alpine ski, cross-country, rally, etc). If your device
is not in NET TIME mode (see the timing sleeve), we advise you to configure it now:
When the display indicates ENTER TIME FOR SYNCHRO, press F.
Select TIMING MODE and confirm with #; select NET TIME and confirm with #.
Select the desired precision for the net time result (ex. 1/100
th
for Alpine Ski – refer to definition
programmable in the chapter 9 – TECHNICAL SPECIFCATIONS).
Select your needed numbering mode at the start (NUMBERING):
AUTOMATIC UP this option automatically presents bib numbers at the start in sequential order, or
MANUAL if race start numbers will appear in random order.
Proceed to the synchronization ( see point point 3.4 ).
CAUTION ! If the synchronization (SYNCHRO) has been carried out before the Timing
mode selection, you must create a NEW RUN in the menu F.
4.1 LCD explanations in NET TIME mode
In this example, the CP 520 is in NET TIME MODE – AUTOMATIC UP.
The display indicates: Explanations:
-
-
-
1
1
:
2
3
:
4
5
-
-
-
-
1
<
<<
<
>
>>
>
-
External inputs blocked and time-of-day
Bib N°1 ready to start
2
1
1
:
5
2
:
2
2
A
U
T
-
2
<
<<
<
>
>>
>
1
-
1
>
>>
>
2
5
.
8
-
External inputs unblocked
(Run 2 / automatic mode)
Bib N° 1 started and expected at the finish
with running time
Bib N°2 ready to start
2
1
1
:
5
3
:
1
4
A
U
T
-
3
<
<<
<
>
>>
>
2
2
>
>>
>
1
4
.
5
-
1
<
1
>
1
:
1
8
.
5
2
-
Bib N° 2 started and expected at th
e finish
with running time
Bib N°3 ready to start
Finish of bib N°1 with actual ranking

Page 7
4. NET TIME MODE (continued)
4.2 Possible actions during the timekeeping in NET TIME mode
The display indicates: Explanations / Actions :
2
1
2
:
0
5
:
5
0
A
U
T
-
1
0
0
<
<<
<
1
2
1
>
>>
>
9
8
-
9
9
>
>>
>
3
7
.
5
-
9
8
>
>>
>
1
:
0
6
.
3
-
Bib N°100 ready to start
Bib N°98 and 99 are expected at the finish
Bib N° 121 is ready to start instead of the
bib N°100…
Insert t
he bib N° 121 on the keyboard
and press E1 to confirm it at the start.
2
1
2
:
0
5
:
5
4
A
U
T
-
1
2
1
<
<<
<
>
>>
>
∇
∇∇
∇
9
8
>
>>
>
1
:
1
1
.
6
-
-
Bib N° 98 and 99 can not be identified
before the finish…
Press
▲
▲▲
▲
to memorize the finish times
without identification
The identification will then be made by
"recall of unidentified times (memorized
times)" R
Press ▲
again to return in the automatic
mode

Page 8
4. NET TIME MODE (continued)
4.3 Keyboard shortcuts of the NET TIME mode
Keyboard shortcut: Explanation:
N°+ E1 To enter or change a bib N°expected at the start.
N°+ E2 To enter or change a bib N°expected at the finish.
✴
✴✴
✴+ E1 To disidentify the last bib N°(s) started (ex: False impulse(s) received at the
start).
The supposed bib N°started is ready to start again.
Its previous time is disidentified (–).
✴
✴✴
✴+ E2 To disidentify the last bib N°(s) finished. (ex: False impulse(s) received at
the finish).
The supposed bib N°finished is back in the race.
Its previous time is disidentified (–).
▼Start times without bib N°
▲Finish times without the bib N°
R + E1 To RECALL unidentified or disidentified start time(s) (memorized times)
R + E2 To RECALL unidentified or disidentified finish time(s) (memorized times)
N°+ R + E1 To RECALL a start time for a bib N°(for modification or cancellation)
N°+ R + E2 To RECALL a finish time for a bib N°(for modification or cancellation)
F + # Direct ranking
You also find also these information at the back of your CP 520 !

Page 9
4. NET TIME MODE (continued)
4.4 Keyboard shortcuts explanation
The bib N°expected at the start or at the finish is not correct:
Enter the new N°and confirm with the key E1 (start) or E2 (finish)
False starts or False Finishes ( false impulses or wrong N°’s, i.e. ):
Disidentify the last bib N°(s) started with ✴
✴✴
✴+ E1 or finished by ✴
✴✴
✴+ E2
Recall unidentified start or finish time(s) (memorized times) with R + E1 (start) or R + E2 (finish)
Identify all times with the related bib N°(s)
The N°0 cancels the considered time(s)
The bib N°’s at the start or at the cannot be identified (mass finish for ex.):
Press ▼for the start time(s) or ▲for the finish time (s)
The times are memorized and can be recalled for identification with R + E1 (starts) or with R + E2
(finishes)
Modification of the bib N°’s already started or already finished:
Recall the bib N°started or finished that you want to modify with N°+ R + E1 (starts) or with N°+ R +
E2 (finishes)
Follow the LCD indications
The modified time of the competitor is disidentified (-)
This time is then registered in the memorized time(s)
Abort of a competitor (DNF):
N°+ R + 0 : Quick function to cancel the start time of a bib N°to be aborted (C)
Disqualification of a competitor (DSQ):
N°+ R + 0 : Quick function to cancel the start and the finish time of a bib N°to be disqualified (C)
IMPORTANT ! The CP 520 allows to accept the same bib number several times at the
start and at the finish. The times taken into account in the ranking will be
the last recorded times. At each start, the previous time will be disidentified
(-), and at each finish, the previous time will be cancelled (C)

Page 10
4. NET TIME MODE (continued)
4.5 Rankings in the NET TIME mode
In order to obtain the desired ranking of your race, you should well organize your different runs.
Find herewith an alpine ski race example:
RUN Nr 1 Women’s run 1
RUN Nr 2 Men’s run 1
RUN Nr 3 Women’s run 2
RUN Nr 4 Men’s run 2
In the race described above, you have the possibility to obtain the various following classifications:
DIRECT RANKING For a provisional ranking or at the end of the run in progress.
RANKING RUN Nr For a ranking of any run:
ONE RUN For a unique ranking. When the display indicates RUN Nr, enter
the number of the desired run and confirm with #.
TWO RUNS For a ranking of two added runs. When the display indicates 1st
RUN and 2nd RUN, enter the number of the first run (in our
example, for the ranking of the men’s race: run 2) and confirm with
#, then, enter the second run number (in our example: run 4) and
confirm with #.
CAUTION ! Of course it is only possible to make the total time of two runs if the
competitors N°’s are in the two considered runs.

Page 11
4. NET TIME MODE (continued)
4.6 Mass starts or by groups
The mass or group starts can be given by a start impulse on the external input INPUT 1 (starting gate,
gun, manual contactor…) or at a predefined time-of-day.
Start impulse Select the NET TIME – MANUAL mode,
insert n°1 at the start (1 + E1) and make it go (impulse),
enter in the menu (F) and select DUPLICATE (confirm with #),
use START NR if the n°’s to be duplicated are in a random order,
or START GRP if they are in a chronological order,
duplicate with the started competitor n°(n°1 in our example).
Predefined time Select the NET TIME – MANUAL mode,
enter in the menu (F) and select INSERT TIME (with #),
select START to insert a starting time,
enter n° 1 and confirm with # (the n° 1 will be the first started
competitor of the group),
enter the start time of n°1 and confirm with #,
press on F, to quit INSERT TIME and another time to re-enter in
the principal menu, go to DUPLICATE,
use START NR if the n°’s to be duplicated are in a random order,
or START GRP if they are in a chronological order,
duplicate related to the started competitor n°(n°1 in our example).
CAUTION ! The predefined start times must be in reference with the official
time-of-day of your CP 520 !

Page 12
5. REAL TIME MODE
The REAL TIME mode of the CP 520 includes 3 timing modes:
SEQUENTIAL Sequential counting of the timing impulses. Start at zero or at the time-of-
day. Please consult point 5.1 – REAL TIME – SEQUENTIAL.
START – FINISH This mode is similar to the NET TIME mode. The difference is in the
results calculation. Please consult the point 5.2 – REAL TIME – START /
FINISH.
LAP TIME This timing mode allows many uses. Before all, it is especially reserved for
circuit races with lap times control of several competitors. Please consult
the point 5.3 – REAL TIME – LAP TIME.
Each of the 3 REAL TIME modes offers several applications. Below, we give you an outline of the
possibilities of each mode and its applications.
5.1 SEQUENTIAL
This mode proposes a synchronization at 00:00 or at time-of-day. According to the time of synchronization,
various possibilities exist:
Synchro at 00:00 It is possible to restart the device at zero or to stop and start again
time only if the synchronization has been done at 00:00!
Select START / STOP / RS in PARAMETERS – AUX. INPUT to be
able to stop and restart the time again (jumping).
Select RESET ACTIVE to be able to RESET the device at zero by
pressing the key R. It is also possible to do an external RESET
with the Input ST / SP / RS which can be programmed via the
menu PARAMETERS (AUX INPUT-EXT. RESET).
Synchro at the time-of-day Do the synchronization at the desired time-of-day.
The SEQUENTIAL mode includes 3 different functions:
SPLIT Start at zero and finishes (athletics, popular races, jumping, etc). If Reset to zero in pressing
the key R(RESET ACTIVE) if wished.
Timing at time-of-day for start and finish time registration (official
timing sleeve when you work with a PC or make race protocols).
SPLIT – LAP Start at zero or at time-of-day. Lap time for two competitors with
counting of the number of laps (partial and net times, lap time for 2
competitors, jumping).
LAP Start at zero or at time-of-day. Lap times for two competitors with
counting of the number of laps.

Page 13
5. REAL TIME MODE (continued)
5.2 START / FINISH
This mode is similar to the NET TIME mode. The difference is in the results calculation (please, consult
PROGRAMMABLE DEFINITION in technical specifications).
5.3 LAP TIME
This timing mode allows for many applications. It is mainly reserved for the circuit races with the lap control
for several competitors.
For example, it is possible to:
identify an impulse already received with the help of the short cut R + E1 (or E2).
identify the competitor n°before its crossing n°+ E1 (or E2).
Calculations of the lap times are then automatically done, even for previous unidentified times !
Several rankings can be printed in the LAP TIME mode:
DIRECT RANKING Best competitor lap time ranking of the current run.
DIRECT LISTING Listing of a competitors’lap times in chronological order of the
current run.
RANKING RUN Nr Best competitor lap time ranking of a previous run.
LISTING RUN Nr Listing of a competitors’lap times in chronological order of any run.
SPECIAL APPLICATION ! When the function RECALL (R) is carried out for the first time, it is
possible to remain in this one and to identify the received impulses
on one or the other of the two inputs!
Once identified the last memorized time, the device returns in its
normal operating mode.

Page 14
6. DESCRIPTION DU MENU
Press Fto enter in the menu,.
To select the desired menu, move by using the ▼and ▲, then, confirm with #. Read the LCD!
POWER OFF Switch off the device.
TIMING MODE Select the timing mode and the precision:
NET TIME For starts and finishes (alpine ski, rally, cross-country,
etc).
REAL TIME for the sequential modes (parallel slalom), starts and
finishes (autocross) as well as the lap time.
See the menu structure on page 16 and the technical specifications of
chapter 8, page 20.
DIRECT RANKING A direct ranking of the current RUN can be obtained any time during the
race.
RANKING RUN Nr. Ranking of a RUN or by addition of two RUNS.
DUPLICATE Recall of a bib N° to duplicate one or several other(s) competitor(s) at its
start or finish time (START N°/ FINISH N°).
Same principle as for the MASS START.
INSERT TIME Insert a start or a finish time for a bib N°.
NEW RUN Creation of a new RUN.
(When or if the previous RUN is finished)
PRINTER Printer ON or OFF.
CLEAR MEMORY Clear the memory or check the remaining memory capacity.
When you start a timing and you don’t need to keep preceding runs in
memory, you can make a CLEAR MEMORY (this option is possible before
or after synchronization).
DOWNLOAD Download of one or of all memorized RUNS to the printer (take care at the
paper roll capacity) or to a PC (OUTPUT COMPUTER – in OFF LINE
mode).

Page 15
6. MENU DESCRIPTION (continued)
PARAMETERS Changing of the parameters:
LOCK TIME Lock time of the Inputs (START / INPUT1 - FINISH / INPUT 2) 0.01 / 0.1 /
1.0 / 2.0 seconds. Minimum blocking 0.01 sec. (no blocking) should not be
used with timing accessories with mechanical triggering. Many impulses
could be received.
AUX. INPUT Programmable auxiliary input (ST / SP / RS) for STAR / STOP / RESTART,
or RESET (only if the synchronization has been carried out at 00:00) for the
reset of time.
LCD DELAY LCD delay adjustment. 5 / 7 or 10 seconds.
LCD CONTRAST LCD contrast adjustment (▲= Plus ▼= Minus)
BUZZER ON / OFF
OUTPUT Output RS 232 (COMPUTER) for the connection to a computer or a
DISPLAY. DISPLAY DELAY at 7 / 10 or 15 seconds.
UPGRADE Do not use, reserved for technical use by TAG Heuer.
The menu differs before or after synchronization. Find below the differences while the device is switched on
in NET TIME mode.
Before: After:
POWER OFF POWER OFF
TIMING MODE DIRECT RANKING
PRINTER RANKING RUN Nr.
CLEAR MEMORY DUPLICATE
DOWNLOAD INSERT TIME
PARAMETERS NEW RUN
UPGRADE PRINTER
CLEAR MEMORY
DOWNLOAD
PARAMETERS
UPGRADE

Page 16
ENTER TIME FOR SYNCHRO / READY FOR SYNCHRO
6. MENU DESCRIPTION (continued)
TIMING MODE
" selected positioning
>
given as example only "
>
>>
>
NET TIME
PRECISION
NUMBERING
1 SEC >
>>
>AUTOMATIC UP
1/10 MANUAL
>
>>
>1/100
REAL TIME
REAL TIME
SEQUENTIAL
PRESISION
RESET
>
>>
>SPLIT 1/10 SEC >
>>
>ACTIVE
>
>>
>SEQUENTIAL SPLIT / LAP 1/100 NO ACTIVE
LAP >
>>
>1/1000
START-FINISH
PRECISION
NUMBERING
1/10 SEC >
>>
>AUTOMATIC UP
1/100 MANUAL
>
>>
>1/1000
LAP TIME
PRECISION RESET
1/10 SEC >
>>
>ACTIVE
1/100 NO ACTIVE
1/1000

Page 17
7. CHANGING THE PAPER ROLL
It is very easy to change it as long as you use it until the end (capacity of approximately 5000 times). A
red zone announces the end of paper.
The change can also be carried out during the timing (even in emergency when there is no more paper)
as the times memorized during the replacement are going to be printed on the new paper roll.
Before the end of the paper Enter the MENU, select PRINTER in OFF position. As soon as
the change is carried out, don’t forget to put again the PRINTER in ON position.
When there is no more paper The printer is automatically switched off.
It will print again automatically as soon as the new paper roll will
be in place. We recommend the first method.
However, we advise you to change the paper roll before your timing!
Open the paper compartment
To open the paper compartment, you can help you with your thumbs to slide it at the back of the device.
To slide it back, place the cover well flat, 3÷4mm behind its closing position.
Caution! The paper roll is firmly maintained by two lateral " half-moons "
to prevent that this one does not move or unwind itself.
To remove a finished paper roll:
Pull out the central part of the paper roll backwards to extract it
as well as the paper that is still engaged in the printer.

Page 18
7. CHANGING THE PAPER ROLL (continued)
To insert a new paper roll:
Unroll a few centimeters of paper until its surface is
clean. Cut it perpendicularly.
Put the paper roll at the back of the device (See
drawing). Introduce the paper under the cylindrical
paper driver. Maintain a light pressure on the paper,
press the paper feed (↑
↑↑
↑). Ensure a good guidance of
the paper. Put the paper roll in its compartment and
strongly push it downwards. You will feel a click as
soon as the paper roll will find its housing.
To extract a paper roll partially started:
Turn the paper roll to release a little bit of paper.
Extract 3 to 4 cm of paper.
Firmly hold the unrolled paper with your index finger
and thumbs on each side. Pull it vertically

Page 19
8. AUTONOMY - SPECIAL SITUATIONS
We advise the use of good quality batteries.
The autonomy can change a lot depending on the type of batteries.
The tests carried out below refers to impulses given every 6 seconds in REAL TIME mode
SEQUENTIAL SPILT.
Number of impulses at: 0°C 20C°
(32°F) (68°F)
Energizer. Alkaline standard 1'000 5’000
Energizer. Alkaline Titanium (New) 2’500 11’000
Duracell. Alkaline ULTRA m3 2'500 11’000
Energizer. LITHIUM (expensive) 12' 000 16’000
The CP 520 is delivered with Energizer TITANIUM batteries
Use in low temperatures
The CP 520 is able to print until temperatures close to – 25°C!
However, it is necessary to use an external power supply to take advantage of a sufficient autonomy.
We advise the use of a simple battery lead (ref. HL 520-8 accumulator 2.1 Ah delivered with charger and
carry-bag). The autonomy is guaranteed at least for 1 day (at -20°C).
The CP 520 printer
Equipped with an electronic control in order to save batteries when those are used.
New batteries –Fast print speed.
Used batteries – Print speed reduced by 4 times.
Flat batteries – Printing of LOW BATT and printer off.
When the printer is off , you can switch it on again (menu PRINTER / ON) only if you have an external
power supply connected. The change batteries can also be done after the timekeeping (timing
information will be keep in the memory!).
The print speed is reduced when you switch the CP 520 on.
If the batteries state is good, the printing switch automatically in fast mode.
Caution ! Maximum consumption when a long ranking is required, be sure of the good state of the
batteries.

Page 20
Memorized information
The CP 520 is equipped with a small accumulator in order to save memorized information even if you
temporarily extract the batteries.
It is recommended to leave batteries in the CP 520 if you wish to save information in memory.
If the accumulator is partially or completely discharged, it is possible that the Chronoprinter does not
work correctly any more, in this case, use the " RESET" function described below.
To recharge a discharged accumulator, it is necessary to leave the CP 520 working during 14 hours with
its internal batteries or external power supply.
This can happen after having removed the batteries for a long period. When you will switch the CP 520
on, all default settings are memorized.
Special functions
To reset the CP 520, press on key 0when you switch the device on.
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