GBS Elektronik MCA-527 - Manual (Page 13)

Hardware
With the MCA527 it is possible to use a cheap wall plug supply in emergency cases.
However this is not recommended, as cheap supplies have no locking connector, can
make problems with electromagnetic compatibility, there may be supplies with compatible
plug but unsuitable voltage, and even unregulated nominal 12V supplies may have idle
voltages as high as 20V which may destroy the MCA527. So when using an alien power
supply make at least sure that the inner connector is positive and the idle voltage is not
higher than 14V.
2.2.5 Exchanging Batteries
The rechargeable batteries of the MCA527 are long lived Li-Ion batteries of the type Sony
NP-F570 or comparable. If however it is necessary to exchange the batteries, it is as
simple as exchanging the HV module. Proceed as follows:
●
Switch off MCA
●
Remove both screws on the front panel.
●
Pull off the front panel. Attached to this is the base board with the HV module and
the batteries. Pull it fully apart.
●
Remove old batteries. Just pull them off to the side.
●
Make sure that the new batteries have exactly the same voltage / charge state. The
voltage difference must never exceed 0.5V, otherwise there is the danger of battery
destruction.
●
It is also possible to operate the MCA with only one battery inserted, but then
operation time is reduced to 40%...50%. The MCA527L comes with only one
battery inserted.
●
Afterwards insert the base board in the correct slit, and also be careful with
inserting the upper board plug.
●
Make sure that the rubber is correctly between housing and front panel and fasten
screws.
2.2.6 Connecting the MCA527 to a Computer
Three different communication interfaces are offered by the MCA527. Depending on the
situation each interface has various advantages.
The standard RS232 interface is available via a 6 pole Lemo socket. Because this is the
same like on the MCA166-USB, the RS232 cable from the MCA166-USB can be used.
Three different baud rates are supported by the MCA527, 38.400, 115.200 and 307.200
Baud. All newer application programs for the MCA are using always the highest possible
baud rate depending on the computer hardware. Because the firmware of the MCA527 is
able to detect the hosts baud rate automatically, usually no manual interface configuration
is necessary.
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