Rotary Switch; Printing Assembly Drawer; Tearing Off A Printout; Loading A New Paper Roll - Hameg Instruments Hd 148 Bedienungsanleitung

Rotary switch
If the printing assembly drawer is opened, a rotary switch
comes into view; this is for service purposes only, and
should normally be in its "O" position.
Printing assembly drawer
Before opening or closing the printing assembly drawer
the Graphic Printer must be switched off.
Changing the 3 alkaline-cell
If the battery voltage falls below about 3V, the error
message "ERRO" is displayed to indicate the batteries
should be replaced.
Procedure:
Attentionl Always
Unscrew the two screws
place.
Pull the printer case off towards the back.
The battery compartment
easily accessible.
reassemble the printer by following the above steps in
reverse order.
The mean service life of the batteries is approx. 3 years.
Attentionl Only alkaline battery types may be used. Any
of the following battery size designations is acceptable:
Mignon - AA - AM3 - LR6
Tearing off printouts
If it is wished to tear off a printout, first lift up the thermal
paper so that it is in contact with the mrtal rim above the
paper chute. Then pull away with an upward, lateral
motion in such a way that the metal rim cuts it off cleanly.

Loading a new paper roll

The end of each paper roll is indicated by the appearance
of a colored marking on the thermal paper.
In order to prevent paper feed problems, a new roll of
thermal paper must now be loaded.
Attentionl Thermal printing paper is coated on one side
only. The heat-sensitive
and must be facing towards the print head (see diagram).
Procedure:
Switch off the printer.
Place the paper release lever in its upper position.
Pull out the printing assembly drawer.
Remove any paper left over from the previous roll.
Load a new roll of paper (30mm in dia., 112mm wide).
Cut the protuding free end of the roll off diagonally,
making sure that no adhesive residues are left on the
paper.
Thread the paper through until it emerges in front.
Pull out about 10cm of paper and straighten it.
Close the drawer.
Return the paper release lever to its lower position.
The printer is now ready for operation again.
12 • ENGLISH
batteries
pull the printer's plug firstl
holding the rear panel in
comes into view, and is
After replacing the batteries,
side is on the outside of the roll
Installation of the HO 74 interface
This cable combination is used to implement the connection
between the memory card and rear panel of the HM205-2.
Only one device or interface
HM 205-2.
The HO 74 interface adapter is available on request free
of charge, and is installed as follows:
Before opening the HM 205-2, disconnect
cord.
Place the oscilloscope on a soft surface with the front side
facing down.
Remove the back cover and carefulle pull the case off
towards the back.
Place the scope right side up again (in horizontal position),
so that its back is facing towards you.
Slide the 26-way ribbon cable with its connector above the
vertically positioned Z board through the cutout for the
CRT neck in the rear chassis.
Attach the connector to the unused
the memory board.
Insert the connector on the other
through the space between the Z board and the attachment
angle, using the supplied screws and nuts.
Remove the area in the rear cover designated with /V/,
Z, and Y.
Place the scope face down again on a soft surface.
Carefully slide the case back on, and fasten the rear panel
in place.
The HM205-2 is now ready for operation again.
adapter
may be connected to the
the power
connector socket
end of the ribbon cable
Subject to change without notice
on