467070
18
Zoom out
Zoom in
Previous page
1/33
Next page
3534
13. User settings
Initial power-on program
NiCd delta-peak (-
peak) trigger voltage
___________ _____
___________ _____
power-on program
NiCd automatic
DECINC
+
-
You can select the charge program which is to be activated
automatically when the charger is connected to the car batte-
ry. The following charge programs are available: NiCd-
manual, -automatic, NiMH-manual, -automatic, LiIo manual
and Pb-manual, -automatic.
The charger monitors the charge curve and assesses the peak, or maximum point, on the curve. This
indicates extremely accurately when the battery is fully charged.
When a battery is placed on charge, its voltage initially rises continuously; however, when the battery
is full the cells’ temperature rises, and this causes a slight reduction (DV) in the battery voltage. The
charger detects and measures this drop. It is possible to adjust the sensitivity, or trigger voltage (in
mV per cell!) of the automatic termination circuit for NiCd batteries. A practical range has proved to be
10 ... 30 mV / cell. If the trigger voltage is set higher, there is a danger of overcharging the battery; if set
lower, there is a danger of premature termination. We recommend that you carry out a series of test
charges to establish the ideal trigger value for your batteries.
NiMH delta-peak (-
peak) trigger voltage
___________ _____
___________ _____
NiMH delta-peak-
voltage = 15mV
DEC
INC
+
-
It is possible to adjust the trigger voltage (in mV per cell!) of
the automatic termination circuit for NiMH batteries. Howe-
ver, compared with NiCd cells NiMH batteries have a less
pronounced voltage drop, and a practical range has proved
to be 5 ... 25 mV / cell. If the trigger voltage is set higher, there
is a danger of overcharging the battery; if set lower, there is a
danger of premature termination. We recommend that you
carry out a series of test charges to establish the ideal trigger
value for your batteries.
cell voltage
charging time
Initial-
program
NiCd
NiMH
Lithium
Pb
NiCd -
Peak
- 10 mV
.
.
- 30 mV
NiMH -
Peak
- 5 mV
.
.
- 25 mV
Car battery
cut-off
- 10,5 Volt
- 11.8 Volt
Button click
-
OFF
-ON
Summer
-
OFF - 10 sec.
- no limit
max.
current
N iC d 0,1... 5A
NiMH 0,1... 5A
Pb 0,1... 5A
MODE
User
settings
MODE MODE MODE MODE MODE
MODEMODEMODEMODE
NiCd / NiMH
safety
timer
10 ... 300 min.
NiCd / NiMH
charge termin-
delay
AUS,
0...9 min.
MODE
Erase
user
settings
**erased**
Initial
current
N iC d 0,1... 5A
NiMH 0,1... 5A
Lith. 0,1... 5A
Pb 0,1... 5A
or automatic-current
Pb capacity test program
Pb discharge program
Pb trickle charge current
___________ _____
___________ _____
Pb capacity
C:2.5A D:2.5A
DECINC
+
-
DECINC
+
-
ENTER
___________ _____
___________ _____
Pb discharge
2.5A 10.8V
DECINC
+
-
DEC
INC
+
-
ENTER
___________ _____
___________ _____
Pb trickle chg.
current 100mA
DECINC
+
-
The typical purpose of this program is to determine the residual
capacity of a drive battery.
In this program the charger discharges the pack using the set
discharge current (0.1 ... 3.0 A or automatic) until its voltage falls
to the set final discharge voltage (0.5 ... 37.0 V or automatic).
To obtain a realistic capacity reading, i.e. one which actually
reflects the battery’s condition, the discharge current should be
set substantially below 1C (capacity of the battery = 2 Ah —> C
= 2 A), and the final discharge voltage should be set to around
1.55 V per cell.
This program determines the capacity of a lead-acid battery.
The program first charges the battery using the set charge cur-
rent stated on the left of the screen (0.1 ... 5.0 A), and then
discharges it again using the set discharge current stated on
the right of the screen (0.1 … 3.0 A). At the end of the process
the screen displays the battery’s capacity.
The recharge phase exploits the unit’s ability to select and redu-
ce the charge and discharge current and voltage automatically,
as described previously for the Pb manual program.
During the discharge phase the battery is discharged at the
current you have selected. To obtain a realistic capacity reading
the discharge current should not be above 1C (capacity of the
battery = 2 Ah —> C = 2 A).
Lead-acid batteries exhibit slightly lower charging efficiency than
NiCd or NiMH batteries, so you should not be surprised if the
useful capacity of the battery only amounts to 60 to 70% of the
charged-in capacity.
When a Pb charge program is used and the battery reaches the
final charge voltage, the charger automatically switches to mainte-
nance mode, i.e. trickle charging.
In trickle mode the charger automatically reduces the final char-
ge voltage to around 2.2 to 2.3 V per cell, which effectively
prevents excessive gassing of the battery even if it is left on
charge for a fairly long time.
This menu is purely for setting the trickle charge rate, and has no other independent function.
In the final stage the charger automatically continues to charge
the battery at the current set in the menu “Pb - trickle charge
current” until you disconnect it from the charger. During this
period the screen displays the letter “T” instead of the charge
current to indicate that it is trickle charging.
___________ _____
___________ _____
Pb-Man. 226:
13
*T* 03627 7.21
The screen displays the message MAX.”, alternating with the reduced charge current to indicate that the
charger is limiting the current.
The ULTRAMAT 25 now charges the battery using the maximum possible current until its voltage rises to
around 2.3 to 2.35 Volts per cell. The charger then switches to a lower current to bring the battery gently
up to full charge; this process reliably fills the battery “to the brim”.
The unit cuts off the charge process automatically when the battery reaches a voltage of around 2.45 to
2.5 Volts per cell. The effect of the automatic charge current adjustment system is to complete a full charge
safely in much less than the usual 14 to 16 hours.
___________ _____
___________ _____
NiCd delta-peak-
voltage = 20mV
DEC
INC
+
-
The automatic charge termination cir-
cuit (“battery full” detection) works on
the principle of the Delta Peak process;
this method, sometimes known as the
Delta-U or Delta-V process, has pro-
ved its worth in millions of battery char-
gers over many years.
18


Need help? Post your question in this forum.

Forumrules


Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.

For example, a credit card number, a personal identification number, or an unlisted home address. Note that email addresses and full names are not considered private information.

Forumrules

To achieve meaningful questions, we apply the following rules:

Register

Register getting emails for Graupner Ultramat 17 at:


You will receive an email to register for one or both of the options.


Get your user manual by e-mail

Enter your email address to receive the manual of Graupner Ultramat 17 in the language / languages: English, German, French as an attachment in your email.

The manual is 0,65 mb in size.

 

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

Others manual(s) of Graupner Ultramat 17

Graupner Ultramat 17 User Manual - Dutch - 18 pages


The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.



Info