Leica MZ16 FA, 106 Z User Manual

Leica

Lamp housing

and mercury

burner lamp

User Manual

2

Leica lamp housing and mercury burner

Table of contents

Page

1. Safety concept . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.2 Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.3 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.4 Recommendations, instructions . . . . . . . . . . . . . . . . . . . . . 6

2. High-pressure mercury burner . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.1 Installing/changing the mercury burner . . . . . . . . . . . . . . 7

3. Assembling the 106 z lamp housing . . . . . . . . . . . . . . . . . . . . . 10

3.1 Installing the stray-light protection . . . . . . . . . . . . . . . . . . 10

3.2 Replacing the collector and heat-absorbing filter . . . . . 10

4. Supply units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

4.1 Supply unit for 50W mercury burners . . . . . . . . . . . . . . . . 12

4.2 ebq 100 supply unit for 100W mercury burners . . . . . . . . 13

5. Adjusting the high-pressure mercury burner . . . . . . . . . . . . 14

1.1 Description

1.2 Safety precautions

For the Leica MZ16 FA

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Leica lamp housing and mercury burner

1. Safety concept

The Leica 106 z lamp housing is the light source for the
fluorescence stereomicroscope Leica MZ16 FA as well as the
fluorescence module for Leica stereomicroscopes. The
Leica lamp housing is used with 100W or 50W mercury burners,
their corresponding supply units and stray-light protection.

In particular, please note

• the safety instructions in this user manual

• the safety instructions for handling electrical devices
in the user manual M2-105-0 (M series) and M2-116-5
(Leica MZ16 FA)

• the user manual and safety instructions for the
ebq 100 supply unit

• the user manual and safety instructions provided by the
lamp manufacturer, and, in particular, the section on how to
proceed if a lamp breaks and releases mercury.

• The stray-light protection on the lamp housing prevents
irradiation of the hands.

• UV protection screen in front of the object level prevents the
user from looking directly into the UV rays.

• UV filters in the observation beam path protect the eyes.

• Automatic shutter locking during rotation of the filter chang­er, observation without fluorescence and removal of the filter
holders prevents UV radiation from reaching the eyes.

• Filter holders without transponders in the free positions of
the rapid filter changer prevent direct UV radiation from
reaching the eyes.

Lamp housing

The Leica MZ16 FA fluorescence stereomicroscope and the
fluorescence module for Leica stereomicroscopes may only be
used in combination with the Leica lamp housing for 100W or
50W mercury burners, their corresponding supply units and
stray-light protection.

Leica Microsystems accepts no liability for damages
resulting from the use of lamp housings from other
manufacturers.

High-pressure mercury burner

• To minimize the risk of explosion, replace a discolored high­pressure mercury burner promptly when it has reached the
end of its rated life. Follow the manufacturer’s specifications
and the minute meter on the supply unit!

• Allow the high-pressure mercury burner to cool off before
replacing it to prevent the possibility of severe burns:

Burn hazard

• Dispose of used mercury burners as hazardous waste.

• Follow the user manual and safety instructions provided by
the lamp manufacturer, and, in particular, the section on how
to proceed if a lamp breaks and releases mercury.

• Do not remove the mercury burner’s dust cover until after you
have installed the lamp. Be very careful to avoid getting
fingerprints on the lamp.

• After installing the mercury burner, adjust it exactly as
described. Never let the bright tips of the electric arcs, the
focal spots, cross when projected:

Hazard of explosion from overheating

• When transporting the equipment, remove the high-pressure
mercury burner, transport it in its original packaging and pro­tect moving parts in the lamp housing using the transport an­chors (which should be stored in a safe place for future use).

Leica Microsystems assumes no liability for incorrectly
installed or improperly used high-pressure mercury
burners.

1.3 Safety instructions

4

Leica lamp housing and mercury burner

1. Safety concept

Supply units

The 100W mercury burners are powered by the ebq 100 supply
unit.

Read the separate instruction manual provided with this
supply unit.

The supply unit for 50W mercury burners
is described in this manual.

For the ebq supply unit: only fuses of the specified type
with the listed rated current may be used. Using other
fuses or bridging the fuse holder is not permitted. Danger
of fire!

Always unplug the power plug of the supply unit from the power
supply:
– when installing and disassembling the lamp housing
– before opening the lamp housing
– when replacing the high-pressure mercury burner and

other parts, such as the heat-absorbing filter or the
collector

– during maintenance work on the supply unit.

After switching on the supply unit, new mercury burners
must be adjusted immediately.
There is a danger of overheating for mercury burners that
are not adjusted.
Danger of explosion.

Notice of dangers

• Never open the lamp housing when the lamp is switched on.

Eye hazard.

• Never open the lamp housing when it is energized.
Disconnect the power supply.

• Disconnect the lamp housing from the power supply when
assembling it. Disconnect the power plug and power supply.

Danger of explosion, UV radiation, danger of blinding.

• Before opening the lamp housing, allow it to cool off for at
least 15 min.

Danger of explosion, danger of burns.

• Never cover the air duct on the lamp housing.

Danger of fire!

5

Leica lamp housing and mercury burner

• Use the stray-light protection.

Danger to eyes from UV radiation.

• During assembly work on xenon burners, always wear the
protective gloves and face protection provided.

Risk of explosion

• Electrical components must be assembled at least 10 cm
away from the wall and from flammable substances.

UV radiationwarning

UV radiation can harm the eyes.

• Never look into the light spot on the object level without a UV
protection screen.

• Never look directly into the beam path (danger of blinding).

• Always fill all filter positions with filter holders.

• Do not select a white, strongly reflective background for the
object.

• Never open the lamp housing when the lamp is switched on.

Danger of explosion, UV radiation, danger of blinding!

• Avoid switching the lamp on and off frequently, as this
reduces its life.

• Hot mercury burners light only after they have cooled down.

• If possible, allow a new mercury burner to burn-in for 1–2
hours without interruption.

• Install the mercury burner very carefully, and without
applying pressure.
Burners can burst very easily.

• Never touch the glass parts of the mercury burner with your
hands. Fingerprints are burned on and reduce the light
quality. If necessary, carefully wipe off dust and fingerprints
using an alcohol-soaked cloth, then wipe dry.

1.4 Recommendations,
instructions

6

Leica lamp housing and mercury burner

1. Safety concept

The Leica Microsystems 106 z lamp housing is used.
If the 105 z lamp housing model is available, it can also be used.

Follow the safety instructions!

The following gas discharge lamps can be used. They require
different types of lamp mounts.

Order No. Typical

Life

500 137 50W high-pressure mercury burner 100 hrs.

(alternating current)

500 138 100W high-pressure mercury burner 200 hrs.

(direct current, stabilized/not stabilized)

500 321 100W high-pressure mercury burner 300 hrs.

(direct current, stabilized/not stabilized)
(Type 103 W/2)

* Please follow the burner manufacturer’s datasheets.

The mercury burner is delivered in separate packaging.
– Without identification code or with identifying code L1

for lower current/higher voltage,

– Identification code L2 higher current/lower voltage.

 Unscrew the 2 hexagon-head screws.
 Pull the contact plug partially out

(do not rotate).

 Lift the cover.

2.1 Installing/changing
the mercury burner

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Leica lamp housing and mercury burner

2. High-pressure mercury burner

 Unscrew the 2 hexagon-head screws.
 Carefully pull out the base with lamp mount

and connecting cable.

 Unscrew the top Phillips screw.
 Pull up the cooling element and pull it

to the side.

 Unscrew the bottom clamping system.
 Remove the transport anchor and store

it for later transport.

 When replacing burners, remove the

used mercury burner and dispose of it
as hazardous waste.

• When inserting the new mercury burner, the mark on the
metal mount must be upright.

 Carefully insert the mercury burner into the bottom mount.
 Rotate the mercury burners with seal point so that it is

located to the side of the beam path.

 Carefully set the flexible power supply on the top metal

mount of the mercury burner.

 Very carefully tighten the top and bottom

screws.

 Guide the lamp mount with the mercury

burner into the rail of the lamp housing.

 Tighten the screw.

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Leica lamp housing and mercury burner

 Adjust the collector on a trial basis using

the focusing knob.

• During this process, the collector may not
come into contact with the flexible
power supply.
If necessary, bend the power supply away
from the collector.

 Carefully close the lamp housing and make

sure that the contact plug
is set firmly in the socket.

 Gently push in the contact plug.
 Tighten the screws.
 Push in the contact plug until it stops (do

not rotate).

9

Leica lamp housing and mercury burner

 Unscrew the hexagon-head screw on the

adapter part using an Allen key.

 Insert the lamp housing into the adapter

part and tighten the hexagon-head screw.

Between the lamp housing and the lamp base, there are gaps
through which UV light escapes, and which can temporarily
irradiate the hands of the user when handling objects under
the lamp housing. The stray-light protection on the bottom of
the lamp housing is designed to catch this stray light.

 Fasten the stray-light protection using 2

screws.

For cleaning, or in case of malfunction, the collector
and heat-absorbing filter can be removed.

 Open the lamp housing and remove the

lamp base.

 Move the reflector towards the right until

it stops.

 Hold the collector in place and pull out

the focusing knob.

 Remove the collector.

 Unscrew the 2 screws and remove the

heat-absorbing filter on the collector.

 Screw a new heat-absorbing filter into

place.

3.1 Stray-light
protection

3.2 Replacing the
collector and

heat-absorbing filter

10

Leica lamp housing and mercury burner

3. Assembling the lamp housing

 Pull the focusing knob outward.
 Carefully replace the collector and push it

to the left until the focusing knob comes to
a stop in the guide groove.

 Adjust the collector on a trial basis.
 Reinstall the lamp base

and close the lamp housing.

Insert the collector

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Leica lamp housing and mercury burner

4.1 Supply unit

for lamp housing 106 z

with 50W mercury

lamp

12

Leica lamp housing and mercury burner

Type 301-185.003/10372
Input:
220V/240V ±10%
220V ~ 50/60Hz
Hg 50W L1/L2
Osram No. 0-958
P. Max. 320VA

1. On/off switch

2. Operating time meter

3. Switching between L1 and L2 burners

4. Safety starter

5. Switching between 50Hz/60Hz

6. Lamp connection

7. Power cable

The supply unit is intended for power supply voltages of
over 220V. For power supply voltages under 220V, an
additional pre-transformer, such as 110V/230V, is required.

Follow the safety instructions!

 Connect the lamp housing cable to the supply unit.
 Switch on ‹L1› or ‹L2› according to the label on the lamp base.
 Switch on 50Hz or 60Hz.
 Connect the power cable to the power supply.
 Read the hour meter and note the number displayed.

21 67

543

4. Supply units

To minimize the risk of explosion, replace a discolored
high-pressure mercury burner promptly when it has
reached the end of its rated life.

Follow the manufacturer’s specifications and the minute meter
on the supply unit!

 Switch on the supply unit.

The safety starter ignites the burner. If the burner does not
ignite after several attempts, the burner could still be too hot
or may be burned out, and the safety starter then switches
off. Wait until the burner has cooled off or replace it with a
new one. New start:

 Press the red button on the safety starter.

• The safety starter becomes operational once again.

After switching on the supply unit, new mercury burners
must be adjusted immediately.
There is a danger of overheating for mercury burners
that are not adjusted.
Danger of explosion.

Replacing the safety starter

 Turn the safety starter counterclockwise and remove it.

You can also use Osram safety starters for HBO 75W.

100W mercury burners must be powered by the ebq 100
supply unit.

Read the separate instruction manual and safety
instructions provided with this supply unit.

Leica lamp housing and mercury burner

4.2 ebq 100 supply unit
for 100W mercury

burners

13

14

Leica lamp housing and mercury burner

After installing the mercury burner, adjust it exactly as de­scribed. Never let the bright tips of the electric arcs, the focal
spots, cross when projected.

Danger of explosion from overheating

Adjustment is also important to obtain a homogenous light
surface and good fluorescence.

When adjusting the mirror image of the arc, never
project it onto the electrodes for a longer period.
Danger of explosion from overheating!

Both electrodes can be faintly seen in the extension of the
symmetrical level of the arc.

 Switch on the supply unit. Wait for 2–3 minutes.

• For the supply unit for 100W, you will hear a whistling sound.

 Swing away the UV protection screen.

• You can work temporarily without the UV protection screen
only when making adjustments!

 For the Leica MZ16 FA: Rotate the filter set into the beam

path using the F button on the
manual operation unit.

 Draw crosshairs on a piece of paper and place it in the

middle of the illuminated circular area.

 Select the lowest magnification.

• The arc is visible in the illuminated circular area.
It is positioned approximately 45° diagonally to the drawn
crosshairs (Fig. a).

 Look into the oculars and focus the crosshairs.
 With the naked eye, observe the arc on the paper and focus

it using the focusing knob (3) (Fig. a).

 Move the arc using the positioning buttons (1 and 2) (Fig. b).
 Focus the second arc (mirror image) using the button (6) and

position it symmetrically to the direct image using the knobs
(4 and 5) (Fig. c).

• For the 50W mercury burner, the arcs should contact each
other.

• For the 100W mercury burner, the arcs should cross.

 Readjust the lamp field using the focusing knob (3).

• The light field should now be as large, round and uniformly
illuminated as possible.

 Reposition the UV protection to protect the observer.

5. Adjusting the mercury burner

15

Leica lamp housing and mercury burner

Hg 50W

Hg 100W

Fig. a: Focus the arc.

Fig. b: Position the arc
at the crosshairs.

Fig. c: Focus and
position the second
arc.

3

1

2

4
5
6

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