Inspection and test instructions

Inspection and test instructions
Inspection and test
instructions
A Safety Checks
B Intensive Maintenance
Operating Lights
ML 1001, ML 702 HX, ML 702 HXvario, ML 702 HXe-vario, ML 701,
ML 502 Xvario, ML 502 Xe-vario, ML 501, ML 301, ML 201, ML 101
© by Gebrüder Martin GmbH & Co. KG,
a company of the KLS Martin Group
Gebrüder Martin claims copyright protection for this documentation.
This documentation may not be changed, extended, copied/reproduced or passed on to third
parties without the prior written permission of Gebrüder Martin.
Gebrüder Martin GmbH & Co. KG,
a company of the KLS Martin Group
KLS Martin Platz 1
D-78532 Tuttlingen, Germany
Phone:
Fax:
E-mail:
Internet:
++49 74 61/ 70 60
++49 74 61/ 70 6203
info@klsmartin.com
www.martin-med.com
For technical questions or spare part orders, please contact our hotline.
Gebrüder Martin hotline:
Phone: ++49 74 61/ 70 63 43
Fax:
++49 74 61/ 70 6203
E-mail: msc@klsmartin.com
Replacement parts:
Phone: ++49 74 61/ 70 61 99
Fax:
++49 74 61/ 70 6203
The hotline is answered Monday through Friday from 8 a.m. to 5 p.m.
Subject to change without notice.
V 2.0
2
Table of Contents
A
V 2.0
Safety Checks
4
A.1 Important Information
4
A.2 Inspection and Testing Procedures
5
A.3 Notes Concerning the Safety Check Report
15
"Safety Check Report" Sheet
16
B
Intensive Maintenance
18
B.1 Important Information
18
B.2 Inspection and Testing Procedures
19
B.3 Notes Concerning the Intensive Maintenance Report
46
"Intensive Maintenance & Safety Check Report" Sheet
47
3
A Safety Checks
A. 1 Important Information
Each time work is done on an operating light or operating light combination (such as
initial installation, repairs or service work), but at least every 24 months, a
comprehensive Safety Check must be performed by an authorised person!
This check must include all of the inspection and testing procedures described below.
These procedures must be carried out completely and with care and the results must be
documented in the corresponding Test Report sheet!
One copy of the completed Report must always be sent to the Martin Service Center!
To keep the operating light (combination) in a safe and perfect working condition, we
recommend you to perform the slightly more comprehensive Intensive Maintenance check
every 24 months instead of the regular Safety Check required by the law.
(
B Intensive Maintenance)
The regular Safety Checks, as well as the Intensive Maintenance inspection and test
procedures, may only be carried out by qualified persons who, due to their training,
knowledge/expertise and practical experience, are capable of performing such work correctly
and independently!
Only the Martin Service Center personnel or specially trained (and thus authorised) persons meet the above requirements!
Never touch live components! Danger of a life-threatening electric shock!
Therefore, always disconnect the operating light (combination) all-pole on the
building side as long as it is not absolutely necessary to keep the light operable
for the service work at hand. In addition, protect it from accidental switch-ons. If
applicable, also deactivate the emergency power supply to the light or light
combination!
Before performing any work on the light or light combination, be sure to observe all safety instructions contained in the appropriate service manual!
V 2.0
4
A. 2 Inspection and Testing Procedures
1. Checking potential equalisation / PE conductor resistance
Tools: Measuring instrument (e.g. Gossen Metra Watt Metriso C); the measuring-current may
not lie below 0.2 A; the no-load voltage may not exceed 24 V but not lie below 4 V either.
a) Mobile light
Rimax = 0.3 Ω
1. Power cord
2. Earthing contact
3. Measuring instrument
4. Measuring lead
Fig. A-1
Resistance measurement on mobile light
Measure the resistance between the power cord’s PE conductor contact and all metallic parts of the light.
Enter the highest measured value (max. 0.3 Ω) in the Test Report sheet.
This measurement is not required for the totally insulated lights (ML 101, ML 201).
V 2.0
5
b) Non-detachable light (fixed installation)
Rimax = 0.3 Ω
Rimax = 0.3 Ω
Connection to supply system (mains)
Main protective conductor terminal
3 Measuring instrument
4 Measuring leads
5 Externally accessible protective conductor
1
2
Fig. A-2
Resistance measurement on non-detachable light
The external protective conductor may only be used for measurement if the ceiling terminal is
no longer accessible after installation (e.g. in the case of a ventilating ceiling). However, this
requires that both point 5 and the resistance between points 2 and 5 were documented in the
initial Test Report (Handover Report) at the time of installation. This information can then be
used as a reference basis for all subsequent measurements.
Remove the canopy (if applicable).
V 2.0
6
Measure the resistance between the main PE conductor terminal (or the nearest protective-conductor terminal) and all metallic parts of the light.
Record the highest measured value (max. 0.3 Ω) in your Test Report sheet.
V 2.0
7
2. Checking the wall/ceiling assembly and the arm system
a) Checking the wall/ceiling structure for stability
Check the stability of the wall/ceiling assembly by gently rocking the tracking arm
back and forth at various positions within the light’s entire range of rotation.
b) Checking the arm system for potential damage
Inspect the tracking and spring arms for proper working condition. Check for deformations, cracks and coating defects.
c) Checking the arm system for proper functioning
Verify that the light head can be easily moved but remains nonetheless securely suspended in the desired position (no uncontrolled movements). If necessary, readjust
the brake setscrews and/or the height limit, following the instructions given in the appropriate service manual.
d) Checking the magnetic brake (only ML 1001)
Check the magnetic brake for correct functioning when touching the light rail and the
central handle.
V 2.0
8
3. Checking the light head
a) Rating plate(s)
Check the rating plate(s) for presence and legibility.
b) Checking the power-to-battery switch-over function
If applicable, check the change-over p.c.b. for correct functioning, for example by tripping the on-site circuit-breaker of the respective light (combination) or by removing
the fuse holder located on the terminal block of the ceiling tube.
c).Performing the functional check according to Operating Instructions
Check all operating functions of the light (or light combination) for proper working order. Be sure to observe the relevant information provided in the appropriate Operating
Instructions.
d) Checking the light field
Level the light head, then verify that the light produces a circular luminous field on the
target surface from a distance of one meter.
e) Checking the lamp voltage with no load
Lamp voltage measured on contact block with no load (max. brightness setting)
ML 501 R
ML 701 R
max. 28 Vdc/ac
ML 702 HX
max. 28 Vdc/ac
ML 501 E
max 40 V dc
ML701 E
max 40 V dc
ML 1001 E
max 40 V dc
ML502 HX
max 26,5 V dc
max. 25,5 V dc
f) Checking the lamp voltage at nominal load
Measure the lamp voltage at nominal load, taking account of the following specifiedvalue tables. For a description of the two different measuring methods (whose use
depends on the type of light to be checked), refer to the sub-sections below.
Lamp voltage measured on contact block at nominal load (max. brightness setting)
ML 301
13.5 Vac
3)
ML 501 E
ML 701 E
ML 1001 E
ML 702 HX
24 – 40 Vdc
24 – 40 Vdc
24 – 40 Vdc
22 - 26,5 Vdc
ML502 X
22 – 25,5 V dc
Lamp voltage measured on focussing unit at nominal load (max. brightness)
V 2.0
9
ML 101/201
not applicable
ML 501 E
2)
22.8 Vdc
ML 501 R
ML 701 R
ML 1001 R
22.8 Vdc/ac
22.8 Vdc/ac
22.8 Vdc/ac
Lamp voltage measured on stand lights (max. brightness setting)
1)
4)
ML 101/201
ML 301
not applicable
not applicable
2)
at transformer output
Single light
on transformer box after rectifier
V 2.0
ML 501/701 R
3)
22.8 Vdc/ac
3)
ML 501/701 E
24 – 40 Vdc
4)
ML 702 HX
4)
24 – 27 Vdc
on focussing unit
10
Checking lamp voltage on slip-ring contact block
V dc
blue
V dc
red
PE yellow/green
Fig. A-3
Tools:
Contact block of slip rings
True rms voltmeter (e.g. Metra Hit 26 S)
The lamp voltage check can only be performed with the light turned on! Therefore, carry
out this task only after the light (combination) has been completely mounted.
Remove the tracking arm cover.
Turn on the light and wait a few seconds until the light has reached operating temperature (ML 702 HX: cold start approx. 4 min; warm start approx. 9 min).
Measure the lamp voltage with a rms voltage meter (measuring range: 30 V or higher)
between the “+ V dc” and “– V dc” terminals located on the lamp-wire connector of the
contact block. For the specified voltage value at nominal load, refer to the appropriate
table above.
After completion of the measurement, reinstall the cover.
Enter the measured value in your Test Report sheet.
V 2.0
11
Checking lamp voltage on focussing unit
Fig. A-4
Tools:
Focussing unit
Test adapter (Schützinger Labor-Schütz GmbH, Eichenwiesenring 6,
D-70567 Stuttgart, Germany, tel: +49-711-715460, order no. FK 20 S / 1 /
Schwarz); true rms voltmeter (e.g. Metra Hit 26 S)
Turn off the light (or light combination)!
Remove the clamping screws (2).
Push the leads of the test adapter onto the banana plugs (1) located on the flange of
the focussing unit.
Connect the measuring leads to a rms voltage meter (measuring range: 30 V or
higher).
Insert the focussing unit (including the measuring leads) into the light head.
V 2.0
12
Position the light head so that the focussing unit will not drop out during the
measurement!
Switch on the light to be tested. Wait until the light has reached its operating temperature, then measure the voltage. For specified voltages under load, see appropriate table above.
Following completion of the voltage measurement, detach the measuring leads from
the focussing unit (but be sure to turn off the light first!), then reinstall the focussing unit with the clamping screws.
Enter the measured value in your Test Report sheet.
V 2.0
13
g) Checking the illumination intensity
6
Luxmeter
Abb. B-15 Measuring the illumination intensity
Measure the illumination intensity (illuminance) with the smallest light field, no dimming, at a distance of one meter from the light source to the target surface.
Specified range of illuminance values
Model
Ec
ML 101
10 to 20 klx
ML 201
1)
25 to 38 klx
1)
ML 301
ML 501
30 to 40 klx
70 to 95 klx
Model
ML 701
2)
up to HW01
ML 701
2)
from HW 01
ML 702
ML 1001
Ec
97 to 110 klx
120 to 135 klx
145 to 160 klx
125 to 145 klx
Record the measured values in your Test Report sheet.
1)
2)
at a distance of 0.5 m
HW: ^ hardware version: see rating plate or Operating Instructions
V 2.0
14
A.3 Notes Concerning the Safety Check Report
The Safety Check Report is based on the European standard EN 60601-2-41, “Particular requirements for the safety of operating and examination lights“, and on the
German standard VDE 0751-1 (Repeat test for medical electrical equipment or systems).
A Test Report sheet must be completed for every light or light head. For example, if
your operating theatre is equipped with the light combination ML 1001 ED / ML 701
RD, you have to fill out two sheets. On the first sheet, underline “ML 1001”, “two”,
“ceiling” and “model E”. On the second sheet, underline “ML 701”, “two”, “ceiling” and
“model R”.
The “Extras” section covers everything that has been added or deviates from the standard (special solutions). Examples: MedTV installed on light-head or separate arm (be
sure to record serial number!), flat screen, etc.
Be sure to specify the room of installation (or operating theatre number) and the
light’s serial number.
The “Customer” and “Company” details should always be provided manually and in
capital letters (incl. full address). Do not use a company stamp.
Each test report must be made out in triplicate. The original is filed away by the customer/operator, one copy is intended for the Technical Service, and the third copy
must be sent to the Martin Service Center.
If safety-related defects are found on an operating light or light combination, it must be
withdrawn from service and protected against accidental or wilful operation with
suitable measures (e.g., remove the mains fuses or install/attach warning signs)! Be
sure to inform the customer/owner and the Martin Service Center without delay!
V 2.0
15
Underline as appropriate:
ML 1001, ML 702, ML 502, ML 701, ML 501, ML 301, ML 201, ML 101,
one/two/three/four,
ceiling, wall, mobile, model E, R, N, HX vario, HX e-vario, X vario, X e-vario
Extras:
Safety Check Report
Room / Op. Th. No.:
Serial No.:
Customer:
Company:
1. Checking potential equalisation / PE conductor resistance
NA
*
a) Mobile light (max. 0.3 Ω)
ohms
b) Non-detachable light (max. 0.3 Ω)
ohms
2. Checking the ceiling assembly and the arm system
OK
Not OK
NA
*
a) Check wall/ceiling assembly for stability
b) Check arm system for potential damage
c) Check arm system for correct functioning
d) Check magnetic brakes
3. Checking the light head
a) Rating plate(s)
b) Check power-to-battery switch-over function (if applicable)
c) Perform functional check according to Operating Instructions
d) Check light field
e) Check lamp voltage with no load
f) Check lamp voltage at nominal load
Specified
Actual
Specified
Actual
on slip-ring contact block
on focussing unit with test adapter
g) Checking the illumination intensity
V 2.0
16
No defects found, or only defects/deficiencies that are not safety-related The operating light may still be
operated.
The operating light may still be used despite certain defects/deficiencies (see previous page). The
deficiencies found will be corrected by:
(agreed date).
The defects found reyuire immediate attention before the opening light is used again, as otherwise patients, users or third parties my be at risk.
The defects/deficiencies found will be corrected by:
(agreed date).
Note:
Date:
Customer:
Date:
Service representative:
The (regular) Safety Checks may only be carried out by qualified persons who, due to their training,
knowledge/expertise and practical experience, are capable of performing such work correctly and
independently!
Only Martin Service Center personnel of specially trained (and thus authorised) persons meet these
requirements!
“Corr.” ^ corrected; proper working condition restored; “NA” ^ not applicable
V 2.0
17
B Intensive Maintenance
B.1 Important Information
Each time work is done on an operating light or operating light combination (such as
initial installation, repairs or service work), but at least every 24 months, a
comprehensive Safety Check must be performed by an authorised person!
This check must include all of the inspection and testing procedures specified in
Section A. These measures must be carried out completely and with care and the results
must be documented in the corresponding Test Report sheet!
One copy of the completed Report must always be sent to the Martin Service Center!
To keep the operating light (combination) in a safe and perfect working condition, we
recommend you to perform the slightly more comprehensive Intensive Maintenance check
every 24 months instead of the regular Safety Check required by the law.
The regular Safety Checks, as well as the Intensive Maintenance inspection and test
procedures, may only be carried out by qualified persons who, due to their training,
knowledge/expertise and practical experience, are capable of performing such work correctly
and independently!
Only the Martin Service Center personnel or specially trained (and thus authorised) persons
meet the above requirements!
Never touch live components! Danger of a life-threatening electric shock!
Therefore, always disconnect the operating light (combination) all-pole on the
building side as long as it is not absolutely necessary to keep the light (or light
combination) operable for the service work at hand. In addition, protect it from
accidental switch-ons. If applicable, also deactivate the emergency power supply to the light or light combination!
Before performing any work on the light or light combination, be sure to observe all safety instructions contained in the appropriate service manual!
V 2.0
18
B.2 Inspection and Testing Procedures
1. Checking potential equalisation / PE conductor resistance
Tools: Measuring instrument (e.g. Gossen Metra Watt Metriso C); the measuring-current
may not lie below 0.2 A; the no-load voltage may not exceed 24 V but not lie below 4
V either.
a) Mobile light
Rimax = 0.3 Ω
1.
2.
3.
4.
Power cord
Earthing contact
Measuring instrument
Measuring leads
Fig. B-1
Resistance measurement on mobile light
Measure the resistance between the power cord’s PE conductor contact and all metallic parts of the light.
Enter the highest measured value (max. 0.3 Ω) in your Test Report sheet.
This measurement is not required for the totally insulated lights (ML 101, ML 201).
V 2.0
19
b) Non-detachable light (fixed installation)
Rimax = 0.3 Ω
Rimax = 0.3 Ω
1. Connection to supply system (mains)
2. Main protective conductor terminal
3. Measuring instrument
4. Measuring leads
5. Externally accessible protective conductor
Fig. B-2
Resistance measurement on non-detachable light
The external protective conductor may only be used for measurement if the ceiling terminal is
no longer accessible after installation (e.g. in the case of a ventilating ceiling). However, this
requires that both point 5 and the resistance between points 2 and 5 were documented in the
initial Test Report (Handover Report) at the time of installation. This information can then be
used as a reference basis for all subsequent measurements.
V 2.0
20
Remove the canopy (if applicable).
Measure the resistance between the main PE conductor terminal (or the nearest protective-conductor terminal) and all metallic parts of the light.
Record the highest measured value (max. 0.3 Ω) in your Test Report sheet.
V 2.0
21
2. Checking the wall/ceiling assembly
Tools: Torque spanner, extension, attachments/bits 17, 19, 23, water level
a) Checking the wall/ceiling structure for stability
Check the stability of the wall/ceiling assembly by gently rocking the tracking arm
back and forth at various positions within the light’s entire range of rotation.
If applicable, check all heavy-duty anchors for secure fixation; check all fixing nuts on
the ceiling anchor plate and the intermediate plate (if applicable) for proper tightening.
Refer to the following sub-sections (relating to the individual components) as applicable.
Heavy-duty anchor torques
– Through anchor HST-M10x90/10:
pull-out torque = 45 Nm;
types: ML 301
– Heavy-duty anchor 10/20:
tightening torque = 50 Nm;
used for round ceiling anchor plates;
types: ML 501
– Heavy-duty anchor 12/25:
tightening torque = 80 Nm;
used for square ceiling anchor plates;
types: ML 701, ML 702, ML 1001
Fig. B-3
Checking the heavy-duty anchor torques
If the torques indicated above cannot be obtained for one or several heavy-duty
anchors, withdraw the light from service and re-attach the plate by taking suitable measures (e.g. widening the fixing holes; installing plate in different place)!
V 2.0
22
– Intermediate ceiling assembly torque
Ceiling anchor plate
2 M16 nut
3 Intermediate plate
1
Fig. B-4
Checking the intermediate ceiling assembly torques
Check (if applicable) all M16 nuts on the ceiling anchor plate and on the intermediate
plate for proper tightening, using a torque setting of 65 Nm.
V 2.0
23
– Ceiling-tube bolted connection torques
Figure 1
Fig. B-5
Figure 2
Figure 3
Checking the torques of the ceiling-tube bolts
If applicable, check the fixing nuts on the ceiling-tube bolts for proper tightening.
To check current nut torques, the bolted joints must be relieved of arm and light-head lever
action.
Rotate the tracking arm(s) (4) into the position shown in Figure 1, then determine the
current torques of the two nuts (1). If required, retighten them with a torque of 45 Nm!
Rotate the tracking arm(s) (4) into the position shown in Figure 2, then determine the
current torques of the two nuts (2). If required, retighten them with a torque of 45 Nm!
Rotate the tracking arm(s) (4) into the position shown in Figure 3, then determine the
current torques of the two nuts (3). If required, retighten them with a torque of 45 Nm!
V 2.0
24
b) Checking the insulating rings, washers and spring rings
1. Insulating rings
2. Washers
3. Spring rings
4. M12 nuts
Fig. B-6
Inspecting the bolted joints of the ceiling-tube plate
Check the insulating rings (1) for presence and cracks or other damage. It is not necessary to loosen the M12 nuts for this task.
Check all bolted connections of the ceiling tube for presence of washers (2) and
spring rings (3).
V 2.0
25
c) Checking the ceiling tube alignment
Fig. B-7
Aligning the ceiling tube
Check the ceiling tube for correct (vertical) alignment, using a water level.
If necessary, adjust the ceiling tube as follows: Remove three of the six nuts (at 120degree steps, i.e. every second nut in the circle), then loosen all of the upper nuts
(X1). Align the ceiling tube with the lower nuts (X2), then fully tighten the upper nuts
(X1) on the ceiling tube plate and reinstall the previously removed nuts (together with
insulating rings and washers). For the nut tightening torque, refer to page 24.
V 2.0
26
d) Checking the fuse ratings and labels
1. Fuse holder
2. Fuse holder label
Fig. B-8
Checking the electrical components
Check the ratings of the mains fuses against the information provided on the fuseholder labels on the input terminal strip. Replace incorrect fuses and attach missing
labels. Be sure to observe the circuit diagram provided in the appropriate service
manual.
e) Checking the electric lines, connections and printed circuit boards
Check the screwed and clamping connections of the electrical components (mains
connection, transformer, change-over p.c.b., etc.) for proper working condition and
stability. Check the electric lines and printed circuit boards for potential damage (signs
of ageing, scorching, charring, etc.).
V 2.0
27
3. Checking the arm system
Tools: Calliper gauge, slotted screwdriver, crosstip screwdriver, hex socket key, contact spray,
grease (e.g. Molycote MOS 2), Loctite screw-locking sealant
a) Checking and securing the retaining screws
Fig. B-9
Retaining screws (ceiling tube and tracking arm)
Check the six retaining screws used for attaching the tracking arm to the ceiling tube
and the four retaining screws that attach the spring arm to the tracking arm for correct
application and fixation.
The tracking and spring arms are very heavy and therefore might crash down as soon
as the fixing screws shown in Fig. B-9 are loosened and removed!
Replace missing screws (if applicable) and secure the screws – one after another –
with Loctite screw-locking sealant.
V 2.0
28
b) Inspecting and cleaning the sliding contacts
1. Contact block
2. Sliding contacts
Fig. B-10
Contact block located on tracking arm
Check the sliding contacts on the contact block integrated in the tracking arm(s) for
contamination and signs of wear.
If necessary, clean the sliding contacts or replace the contact block.
Apply some contact spray to the contact-block contact surfaces as well as inside the
tracking arm while rotating the tracking arm by 360 degrees.
Confirm the (correct) working condition of the sliding contacts in your Test Report
sheet.
V 2.0
29
1. Safety/protective sleeve
2. Nose segment
3. Locking screw
M4 x 8 acc. to DIN 7985
4. Plug-in contact
5. Plastic ring
Fig. B-11
Connection between light-head arm and spring arm
c) Checking the protective sleeve
Check the protective sleeve (1) for cracks and deformations and replace it if necessary.
d) Checking the locking screw
Check the locking screw (3) for presence, correct length (8 mm) and signs of wear.
Mount the locking screw before removing the nose segment! Otherwise the light
head might crash down.
e) Checking the nose segment
Acrobat 77
Check the nose segment (2) for signs of wear. In the engagement section, the segment must have a thickness of 1.6 mm. Replace segment if required.
Should the nose segment show signs of wear, check the plug-in contact (4) and the
plastic ring (5) located on the connection between the light-head arm and the spring
arm. Replace the circular connector if necessary.
Grease the nose segment (e.g. with Molycote MOS 2).
V 2.0
30
V 2.0
31
f) Checking the brake setscrews
1. Brake setscrews located in the tracking
arms (slotted-head screws)
2. Brake setscrews located in the light handles/arms (3-mm hex socket screws)
3. Round nut for spring arm adjustment
4. Round nut for spring arm height limitation
Fig. B-12
Adjusting elements – overall view
Check the brake setscrews in the tracking arm(s) and light arms for signs of wear.
Replace if necessary.
Following inspection (1, 2), tighten the setscrews so that the tracking arms and
light heads are easily movable but nonetheless securely kept in place in the desired position.
g) Inspecting the spring arm
Check the spring arm for deformations and hair cracks.
V 2.0
32
h) Checking spring arm adjustment
V 2.0
33
Acrobat 2000 Height limitation
V 2.0
34
Acrobat 77
1. Round nut
2. Slots
3. Hex socket key
Fig. B-13
Adjusting the spring arm
Check the spring arm for correct adjustment. If necessary, readjust as follows:
If spring arm moves too easily upwards:
Move spring arm vertically until the round nut (1) is visible in one of the two slots (2).
Using the socket key (3), rotate the screw in the “-“ direction until the spring arm can
be just as easily moved upwards as downwards.
If spring arm moves too easily downwards:
Move spring arm vertically until the round nut (1) is visible in one of the two slots (2).
Using the socket key (3), rotate the screw in the “+“ direction until the spring arm can
be just as easily moved upwards as downwards.
V 2.0
35
Check the height adjustment (maximum upward movement) of the spring arm if necessary ( Fig. B-12, pos. 4). Also refer to the appropriate service manual for additional information.
i) Checking the rating plate and warning labels
Check the rating plate(s) for presence and legibility.
For lights that incorporate a pilot laser (aiming beam), check the warning labels for
presence and legibility.
V 2.0
36
4. Checking the light head
Tools/aids: Torque spanner, slotted screwdriver, crosstip screwdriver, grease (Molycote MOS 2 and Klüber FHG L71V), hex socket key, diagonal cutter, contact spray, cable fasteners, glass cleaner, cleaning tissue/towels
1. Rubber profile
2. Rubber gasket on bottom glass pane
3. Filter glass assembly
4. Insulating disk
5. Reflector
6. Plug-in/screwed/clamping connections
Fig. B-14
Light head, opened (general example)
Arrest the spring arm (for example, by tying it to the operating table with a cord) so
that the light head has ample room for movement and can be conveniently disassembled.
With the light (combination) de-energised, remove the focussing unit by proceeding
as follows: Detach the sterilisable handle, then loosen the three fixing screws of the
focussing unit and pull out the unit.
Open the light head, following the instructions provided in the appropriate service
manual.
V 2.0
37
a) Inspecting the bottom glass pane and rubber gasket
Inspect the bottom-pane rubber gasket for damage or signs of wear.
Check the pane for cleanness. If necessary, clean according to the following procedure.
Never touch or clean the inner surfaces of the reflector or the filter glass unit! A heavily
contaminated or oxidised reflector must be completely replaced. The same applies to a
heavily contaminated filter glass assembly!
To clean the bottom pane, remove the three fixing screws on the black clamping ring
located in the centre of the pane.
Remove the filter glass assembly (lift upwards).
Clean the pane with a cloth and a common glass cleaner.
b) Inspecting the reflector and filter glass segments
Check the reflector and the filter glass segments of the filter glass assembly for
proper working condition. Replace if necessary.
c) Inspecting the insulating disks
Check the (white) insulating disks located at the top of the filter glass assembly (see
Fig. B-14, pos. 4) for potential damage and signs of wear (such as cracks). Replace if
necessary.
Install the filter glass unit, if applicable, proceeding in reverse order.
d) Inspecting the electric lines, connections and printed circuit boards
Check the screwed and clamping connections of the electrical components (earthing
cross, operator/control unit, ballast) for proper working condition and
stability. Check the electric lines and printed circuit boards for potential damage (signs
of ageing, scorching, charring, etc.).
If necessary, secure loose electric lines (litz wires) with cable fasteners.
e) Inspecting the rubber profile
Check the rubber profile for proper condition. Clean and replace if necessary.
Close the light head, following the instructions provided in the appropriate service
manual.
V 2.0
38
f) Inspecting the focussing unit
Check the lampholders, electric lines and plug-and-socket connections of the focussing unit for signs of scorching/charring. Replace the parts or the unit if necessary.
In the case of “N” and “R” models, check the spindle of the focussing unit for ease of
movement. If necessary, grease the contact surfaces of the (extended) lamp carrier
with Klüber FHG L71V or replace the focussing unit.
g) Inspecting the sterilisable handle
Check the sterilisable handle (sleeve) for potential damage (signs of wear). Replace if
necessary.
V 2.0
39
5. Checking the light functions
Tools/aids: Operating Instructions;
test adapter (Schützinger Labor Schütz GmbH, Eichenwiesenring 6,
D-70567 Stuttgart, Germany, tel.: ++49 / 7 11 / 71 54 60,
order no. FK 20 S / 1 / Schwarz); true rms voltmeter (e.g. Metra Hit 26 S);
luxmeter (e.g. Grossen Metra Watt Mavolux 5032C; measuring range: 0.1
to 199,900 lx)
With exception of the canopy, mount the light (or light combination) and insert the focussing unit(s).
Turn on the light (or light combination) and check the following points.
a) Checking the power-to-battery switch-over function
Check the change-over p.c.b. (if applicable) for correct functioning, for example by
tripping the on-site circuit-breaker of the respective light (or light combination) or by
removing the fuse holder located on the terminal block of the ceiling tube.
Install the canopy.
b) Performing the functional check according to Operating Instructions
Check all operating functions of the light (or light combination) for proper working order. Be sure to observe the relevant information provided in the appropriate Operating
Instructions (relating to light type and optional equipment such as monitor or camera).
c) Checking the lamp switch-over function
ML XX1 N / R / E models:
With the light turned off, remove the halogen lamp located in the centre of the focussing unit, then turn on the light again and check both the change-over mechanism
and the control-panel error indication for correct functioning.
Check the second error indication (only ML XX1 E models) for correct functioning by
switching off the light, plugging the halogen lamp into the other socket and turning on
the light again.
With the light turned off, reinstall the previously removed halogen lamp or replace the
lamp(s).
ML 702 HX model:
Check the turn-on and change-over behaviour of the light (or light combination). Refer
to the corresponding Operating Instructions for detailed information.
d) Checking the light field
Level the light head and verify that the light produces a circular luminous field on the
target surface from a distance of one meter.
V 2.0
40
e) Checking the illumination intensity
1
Luxmeter
Abb. B-15 Measuring the illumination intensity
Measure the illumination intensity (illuminance) with the smallest light field, no dimming, at a distance of one meter from the light source to the target surface.
Specified range of illuminance values
Model
Ec
ML 101
10 to 20 klx
ML 201
1)
25 to 38 klx
1)
ML 301
ML 501
30 to 40 klx
70 to 95 klx
Model
ML 701
2)
up to HW01
ML 701
2)
from HW 01
ML 702
ML 1001
Ec
97 to 110 klx
120 to 135 klx
145 to 160 klx
125 to 145 klx
Record the measured values in your Test Report sheet.
1)
2)
at a distance of 0.5 m
HW: ^ hardware version: see rating plate or Operating Instructions
V 2.0
41
f) Checking the lamp voltage with no load
Lamp voltage mesured on contact block with no load (max. brightness setting)
ML 501 R
max. 28 Vdc/ac
ML 701 R
ML 501 E
ML 701 E
ML 1001 E
max. 28 Vdc/ac
max. 40 V dc
max. 40 V dc
max. 40 V dc
ML 702 HX
ML 502 HX
max. 26,5 V dc
max. 25,5 V dc
g) Checking the lamp voltage at nominal load
Measure the lamp voltage at nominal load, taking account of the following specifiedvalue tables. For a description of the two different measuring methods (whose use
depends on the type of light to be checked), refer to the sub-sections below.
Lamp voltage measured on contact block at nominal load (max. brightness setting)
ML 301
13.5 Vac
1)
ML 501 E
ML 701 E
ML 1001 E
ML 702HX
24 – 40 Vdc
24 – 40 Vdc
24 – 40 Vdc
22 – 26,5 Vdc
ML 502 X
22 – 25,5 Vdc
Lamp voltage measured on focussing unit at nominal load (max. brightness setting)
ML 101/201
not applicable
ML 501 E
2)
22.8 Vdc
ML 501 R
ML 701 R
ML 1001 R
22.8 Vdc/ac
22.8 Vdc/ac
22.8 Vdc/ac
Lamp voltage of stand lights (max. brightness setting)
1)
2)
3)
4)
ML 101/201
ML 301
not applicable
not applicable
ML 501/701 R
22.8 Vdc/ac
3)
ML 501/701 E
24 – 40 Vdc
4)
ML 702 HX
4)
24 – 27 Vdc
at transformer output
Single light
on focussing unit
on transformer box after rectifier
V 2.0
42
Checking lamp voltage on slip-ring contact block
V dc
blue
V dc
red
PE yellow/green
Fig. B-16
Tools:
Contact block of slip rings
True rms voltmeter (e.g. Metra Hit 26 S)
The lamp voltage check can only be performed with the light turned on! Therefore, carry
out this task only after the light (combination) has been completely mounted.
Remove the tracking arm cover.
Turn on the light and wait a few seconds until the light has reached operating temperature (ML 702 HX: cold start approx. 4 min; warm start approx. 9 min).
Measure the lamp voltage with a rms voltage meter (measuring range: 30 V or higher)
between the “+ V dc” and “– V dc” terminals located on the lamp-wire connector of the
contact block. For the specified voltage value at nominal load, refer to the appropriate
table above.
After completion of the measurement, reinstall the cover.
Enter the measured value in your Test Report sheet.
V 2.0
43
Checking lamp voltage on focussing unit
Fig. B-17
Tools:
Focussing unit
Test adapter (Schützinger Labor-Schütz GmbH, Eichenwiesenring 6,
D-70567 Stuttgart, Germany, tel: +49-711-715460, order no. FK 20 S / 1 /
Schwarz); true rms voltmeter (e.g. Metra Hit 26 S)
Turn off the light (or light combination)!
Remove the clamping screws (2).
Push the leads of the test adapter onto the banana plugs (1) located on the flange of
the focussing unit.
Connect the measuring leads to a rms voltage meter (measuring range: 30 V or
higher).
Insert the focussing unit (including the measuring leads) into the light head.
Position the light head so that the focussing unit will not drop out during the
measurement!
Switch on the light to be tested. Wait until the light has reached its operating temperature, then measure the voltage. For specified voltages under load, see appropriate table above.
V 2.0
44
Following completion of the voltage measurement, detach the measuring leads from
the focussing unit (but be sure to turn off the light first!), then reinstall the focussing unit with the clamping screws.
Enter the measured value in your Test Report sheet.
V 2.0
45
B.3 Notes Concerning the Intensive Maintenance Report
The Intensive Maintenance procedure includes all the inspection and testing procedures required under the (regular) Safety Check as prescribed by the law.
The Safety Check Report is based on the European standard EN 60601-2-41, “Particular requirements for the safety of operating and examination lights“, and on the
German standard VDE 0751-1 (Repeat test for medical electrical equipment or systems).
A Test Report sheet must be completed for every light or light head. For example,
if your operating theatre is equipped with the light combination ML 1001 ED / ML
701 RD, you have to fill out two sheets. On the first sheet, underline “ML 1001”,
“two”, “ceiling” and “model E”. On the second sheet, underline “ML 701”, “two”,
“ceiling” and “model R”.
The “Extras” section covers everything that has been added or deviates from the
standard (special solutions). Examples: MedTV installed on light-head or separate
arm (be sure to record serial number!), flat screen, etc.
Be sure to specify the room of installation (or operating theatre number) and the
light’s serial number.
The “Customer” and “Company” details should always be provided manually and in
capital letters (incl. full address). Do not use a company stamp.
Each test report must be made out in triplicate. The original is filed away by the
customer/operator, one copy is intended for the Technical Service, and the third
copy must be sent to the Martin Service Center.
If safety-related defects are found on an operating light or light combination, it must be
withdrawn from service and protected against accidental or wilful operation with
suitable measures (e.g., remove the mains fuses or install/attach warning signs)! Be
sure to inform the customer/owner and the Martin Service Center without delay!
V 2.0
46
Underline as appropriate:
ML 1001, ML 702, ML 502, ML 701, ML 501, ML 301, ML 201, ML 101,
one / two / three / four,
ceiling, wall, mobile, model E, R, N, HX vario, HX e-vario, X vario, X e-vario
Extras:
Intensive Maintenance & Safety Check
Report
Room / Op. Th. No.:
Serial No.:
Customer:
Company:
NA*
1. Checking potential equalisation / PE conductor resistance
a) Mobile light (max. 0.3 Ω)
ohms
b) Non-detachable light (max. 0.3 Ω)
ohms
2. Checking the wall / ceiling assembly
NA*
a) Checking the wall/ceiling structure for stability
OK
Not OK
OK
Not OK
•– Heavy-duty anchor torques
•– Intermediate ceiling assembly torque
•– Ceiling-tube bolted connection torques
b) Checking the insulating rings, washers and spring rings
c) Checking the ceiling tube alignment
d) Checking the fuse ratings and labels
e) Checking the electric lines, connections and printed circuit boards
3. Checking the arm system
a) Checking and securing the retaining screws
NA*
b) Inspecting and cleaning the sliding contacts
c) Checking the protective sleeve
d) Checking the locking screw
e) Checking the nose segment
f) Checking the brake setscrews
g) Inspecting the spring arm
h) Checking spring arm adjustment
i) Checking the rating plate and warning labels
“Corr.” ^ corrected; proper working condition restored; “NA” ^ not applicable
V 2.0
47
4. Checking the light head
OK
Not OK
NA*
a) Inspecting the bottom glass pane and rubber gasket
b) Inspecting the reflector and filter glass segments
c) Inspecting the insulating disks
d) Inspecting the electric lines, connections and printed circuit boards
e) Inspecting the rubber profile
f) Inspecting the focussing unit
g) Inspecting the sterilisable handle
5. Checking the light functions
a) Checking the power-to-battery switch-over function
b) Performing the functional check according to Operating Instructions
c) Checking the lamp switch-over function
d) Checking the light field
Specified
Actual
Specified
Actual
e) Checking the illumination intensity
f) Checking the lamp with no load
g) Checking the lamp voltage at nominal load
on slip-ring contact block
on focussing unit with test adapter
No
defects
found,
or
only
The operating light may still be operated.
defects/deficiencies
The
operating
light
may
still
be
used
The defects/deficiencies found will be corrected by:
that
despite
are
certain
not
safety-related.
defects/deficiencies.
(agreed date)
The
defects
found
require
immediate
attention
before
the
operating
is used again, as otherwise patients, users or third parties may be at
The defects/deficiencies found will be corrected by:
(agreed date)
light
risk.
Note:
Date:
Customer:
Date:
Service representative:
The regular Safety Checks and the Intensive Maintenance inspection and test procedures may only
be carried out by qualified persons who, due to their training, knowledge/expertise and practical
experience, are capable of performing such work correctly and independently!
Only the Martin Service Center personnel or specially trained (and thus authorised) persons meet
these requirements!
“Corr.” ^ corrected; proper working condition restored; “NA” ^ not applicable
V 2.0
48
V 2.0
49
Gebrüder Martin GmbH & Co. KG
Ludwigstaler Straße 132 · D-78532 Tuttlingen
Postfach 60 · D-78501 Tuttlingen · Germany
Telefon +49 74 61 706-0 · Telefax +49 74 61 706-193
info@klsmartin.com
www.martin-med.com
10.05 · 90-132-52-22 · Printed in Germany
Copyright by Gebrüder Martin GmbH & Co. KG
Alle Rechte vorbehalten.
Technische Änderungen vorbehalten.
We reserve the right to make alterations.
Cambios técnicos reservados.
Sous réserve de modifications techniques.
Ci riserviamo il diritto di modifiche tecniche.
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertising