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Amsco Classifieds. If you desire to entertaining books, lots of. Warming Tarsal. These warmers are equipped with independent, digitally controlled heating chambers that offer actual temperature and set point displays. Adjust to Record voltage before adjustment. Each Inspection Record voltage after adjustment, if needed. Check to make sure secondary lamp moves into primary position, and lamp-out indicators blink.
Maintenance to be Performed Minimum Frequency 9. Each Inspection 9. Every 6 months Verify proper operation of zoom controls.
Verify proper operation of rotation controls. Check batteries in remote control. Check operation of optional foot control accessory if applicable. Verify that light moves smoothly and easily, and that light does not flicker. Each Inspection Check area to ensure removal of all materials used during inspection. Use Electrical Schematics Section 4 as guide in 1.
Use operating instructions presented in Section understanding operation of the fixture and in 2 to verify trouble symptoms. After symptom has been verified, refer to 4. From the placement for guidance when attempting re- table, select example that is most appropriate to pairs. Follow recommended correction.
New Installation: a. Make sure power is on at the electrical panel circuit breaker. Lamp will not operate. Reverse polarity mately 15 seconds after the controller knob is turned of wires see NOTE. Make sure light bulb s is installed.
Make sure the controller and mount are properly wired. Check for After Start-Up: a. Check all items under New Installation. Ensure controller 20 Amp fuse F1 or F2 is not defective. Redundant lamp mechanism hung-up between! Check for binding. Controller rectifier board defective. Check for controller output for Fuse 15 Amp on redundant lamp board defec- tive. Redundant lamp board defective. Light flickers. Check for loose wire s in controller or lighthead.
Check for any arcing on brushes or brush holder. Defective lamp holder assembly. Check continuity by measuring between terminal block and input to redundant lamp board located under the lighthead cover. Track Mounted Light Check brushes and com- mutators in carriage assembly for dirt or arcing. Track Mounted Light: Q-Track Remove side rails from track and check brushes at top of carriage and pick-ups in side rails for dirt or signs of arcing.
Be sure track top extrusion is level and side extrusions are installed properly. See Sec- tion 7. Verify that track assembly is level. See Section 7. Light does not function on intensity selection 2 a. Defective 20 Amp fuse in controller. Low light intensity, or poor beam pattern.
Lamp voltage low. Should be Refer also to Mechanical section, item 1. Bulb defective glass envelope clouded, etc. Filament failure LED does not blink when lamp a. Ribbon cable loose on redundant lamp board. Short lamp life. Lamp voltage too high. Adjust voltage per Instal- lation Instructions in Section 7 of this manual.
Incorrect lamp used use only Amsco P Improper lamp replacement lamp must be fully seated in socket. Circuit breaker buzzes. Adjust voltage per Instal- See Section 3.
Redundant lamp mechanism bound. Lamp not properly centered in optical core. Redundant lamp base loose. Sterile handle support only partially installed after lamp changed. Lamp not fully inserted into the socket. Polaris lamp frosted glass envelope installed in SQ lamp socket. Check lamp filament to assure that it is not bent, must be centered. Suspension arm drifts up or down. Adjust per Section 7 of this manual. Yoke drifts about suspension arm.
Yoke brake adjustment inadequate. Adjust per Sec- tion 7 of this manual. Lighthead drifts within the yoke. Brake adjustment improper.
Adjust per Section 6 of this manual. Centra Mount drifts. Mounting plate not level. See Installation In- structions P, Section 7. Friction brake loose. See Section 7 for adjust- ment procedure. Track Mount drifts. Relevel the track by adjusting the nuts above and below track on ceiling support studs.
Track Mount binding. Check for dirt or burrs on rail or bearing block, clean if necessary. Check for excess drag between bus bars and brushes. Check bearing block bolts for tightness. See Instal- lation Instructions P, Section 7.
Pattern change mechanism difficult to turn. Clean and lubricate the rotator assembly. Always refer to appropriate equipment manuals to confirm correctness of connections. Use this chart, illustrations and schematic P to assist in troubleshooting. ON position. Use a digital voltmeter to confirm that AC line voltage is present across the main power supply wires; if not, correct the problem with the power source. If line voltage is present, replace the breaker switch.
The breaker switch The power supply is Check the wiring from the breaker switch to the power lights but the front not receiving power. Use a digital voltmeter to confirm that AC line panel power LED voltage is present across the power supply input termi- does not light when nals. If DC voltage is not present, replace the power The front panel is not supply.
The power LED The camera is not Look into the lens of the camera immediately after lights but there is no receiving power. Within the first picture on the 10 seconds after power-up, the camera runs a diag- monitor. This movement is visible when looking through the front of the camera. If there is no movement of the NOTE: Make sure lens elements front to back, not around then the monitor has power camera is not receiving power, or the camera is faulty.
Confirm the follow- turned ON. Also ing: check that monitor cable to the wall The camera is properly mounted and the plug is control is properly engaged. Refer to The 12 pin plug of the camera cable is securely manual supplied connected to the jack on the PC board P2. The 12 pin plug of the camera cable is securely connected to the plug at the top of the centra mount.
The connection at the knuckle is properly made. Remove the camera and use a digital voltmeter to confirm that VDC is present between the black and red wires of the self-mating plug on the camera support plate. If voltage is present, the camera is faulty. If there is a loss of continuity, trace the line from the plug to the knuckle of the lighthead, to the connection at the horizontal arm, and from the plug at the top of the center mount to the Wall Control PC board to find where the connection is lost.
Repair the break. The camera has There is a loss of Check that the monitor is properly connected, set at power but there is continuity between the correct channel and turned on refer to manual sup- no picture on the camera video out and plied with monitor. Using a digital voltmeter, check the continuity from mode. Check the continuity from the Composite jack central pin to pin B5 of the self-mating plug Blue colored wire.
Repair the break in continuity. There is a picture on There is a loss of Check that the monitor is properly connected, set at the monitor in the continuity in the correct channel and turned on refer to manual sup- Composite mode but component signal plied with monitor.
Using a digital voltmeter, check the continuity from black and white the pins of the SVHS cable to the pins of the self- picture in the compo- mating plug using schematic P Repair nent SVHS mode. The monitor displays There is a loss of Use a digital voltmeter to check the continuity from a picture in Compos- continuity in the lens point J on the PC board to pin B4 Green colored ite and SVHS modes control line.
Use a digital voltmeter to check the continuity from 7. The lens control There is a loss of point R-7 on the PC board to pin A4 Gray colored wire functions work continuity in the auto on the self-mating connector.
CW rotation button on the front panel is pressed. The LED on the hand The remote control is Check the batteries in the remote for voltage and control does not light not functioning properly.
Replace with two fresh N-type cells. The system functions The foot control is not Confirm that the foot control plug is properly inserted in properly with the front properly connected. Use the following instructions and matrix 5.
All readings are to be taken with only one light- White head ON and at intensity setting 5. A condition of low voltage and high current may be caused by a lamp with a partially shorted filament. If this occurs, replace the lamp. Keep a record of the test.
Each test must meet the standards of material, workmanship and performance set forth in this procedure. Refer to Component Replacement and Repair Section 7 Centra Mount or Troubleshooting Tables and should problems arise or adjustments be required.
Light Meter Kit P 2. Strap Wrench If Available 5. Do not use light fixture if red band is visible Correct below rubber cap at top of vertical suspen- Incorrect Installation sion tube.
Ceiling Centra Mounting Plate a. Remove canopy halves to gain access to ceiling bolts. Make sure the ceiling plate is level. Make sure all mounting hardware is tight. See Figure SQ-Style Track Check mounting bolts for tightness. Track Mounted a.
Q-Style Track Remove both side extru- c. Verify that the track is level, side to side, sions and check mounting bolts for then end to end. Make sure the carriage is secure within the track. Lower redundant lamp mechanism by loos- ening four quarter-turn wing fasteners. In- spect wires and ensure that they do not interfere with moving parts of pattern change mechanism and redundant lamp Support change mechanism. Also, inspect wire con- Spindle nections to ensure that lamp socket and Jam terminal connections are secure.
Nut c. Inspect wires and plug connections on PC board assembly for secure attachment. Also, Lock Washer ensure wires are properly secured with tie wraps. Lockwasher and Jam Nut d. Inspect general appearance, such as condi- tion of painted surfaces, fit of trim rings, etc. Centra Vertical Suspension Tube e. Inspect all markings. Assure that the lighthead does not drift at any! Do not use light fixture if red band is visible 3. Check to assure full rotation of lighthead in below the rubber boot at top of vertical yoke is between stops and lighthead trav- suspension tube.
Observe pivot screw a. Inspect the top of the vertical suspension action pivot screw must rotate with lighthead tube. Make sure no portion of the red warn- during full lighthead rotation. See Figure , ing band extends below the rubber boot. See Item Slip the rubber boot out of the centra arm.
Make sure the jam nut is locked down tightly onto the vertical suspension tube. The plug button tether is anchored around See Figure To ensure the plug button is d. Make sure a tab on the lock washer is bent anchored, run at least one of these wires into one of the slots on the jam nut. See through the plug button tether. Check yoke plug buttons for presence of re- e. Make sure the setscrew used to locate the straint cable with proper attachment to yoke.
NOTE: The setscrew, when properly installed, should not protrude beyond the outside di- ameter of the vertical suspension tube. Raise the trim cover at the bottom of the vertical suspension tube.
General Inspect the following carefully and Figure Rotation of Lighthead in Yoke thoroughly: a. Rotate pattern change mechanism four or five times and ensure easy smooth and uni- form rotation. Verify the lighthead moves smoothly from stop to stop inside yoke.
Lighthead should move with minimum force and not drift when left in any position. If drift occurs, or force required to rotate lighthead seems excessive, the lighthead yoke friction needs to be adjusted see Section 7. NOTE: The following factory test procedure re- quires special tools and is included for reference only. This procedure should not be required for routine maintenance.
Actual forces can be ad- justed to customer preference. Attach a force gauge to the sterile handle and measure the maximum force required to rotate the lighthead within the yoke in two directions Figure Rotation of Yoke in as follows See Figure Suspension Arm. Position the lighthead with reflector rim a. Position lighthead, yoke, and force gauge as parallel to the floor.
Attach force gauge to shown in Figure Rotate the lighthead the sterile handle and rotate the lighthead and yoke assembly through degree rota- clockwise to full stop. Be sure to maintain tion in a clockwise direction. Be sure to force gauge parallel to reflector rim in line maintain force gauge parallel to reflector with suspension arm. Force shall not exceed rim and in line with lighthead pivot points. Reposition lighthead and force gauge with reflector rim parallel to floor.
Rotate the b. Reposition lighthead, yoke, and force gauge lighthead counter-clockwise to full stop. Be as shown in Figure Rotate lighthead sure to maintain force gauge parallel to the and yoke through degree rotation in reflector rim and in line with suspension counterclockwise direction. Be sure to main- arm. See Section 3. Verify that drifting of the lighthead and yoke 7. Rotate the lighthead yoke around the horizontal 4.
Assure the yoke moves pounds or drifting is occurring, friction brake smoothly with minimum force and does not needs adjustment. Verify that arm articulation is 15 degrees mini- NOTE: The following factory test procedure re- mum above horizontal and 88 degrees mini- quires special tools and is included for reference mum below horizontal. Actual forces can be ad- 2. Attach a force gauge to the sterile handle. With justed to customer preference. Attach a force gauge to the sterile handle and full up and full down positions.
The differ- pension arm as follows: ential between up and down force should be no. Make sure that arm 6. Position yoke and lighthead 15 degrees above parallel see Figure above.
The force necessary to rotate the lighthead car- 1. Attach spring scale to support arm. The force necessary to start movement at the center rotation point of the support arm should 4. Position the suspension arm perpendicular to be 4 to 6 pounds. Adjust brake if necessary.
Attach the spring scale to the knuckle same height as suspension fork and with light assembly see Figure The force necessary to start movement at the outer rotation point of the support arm should be 2 to 5 pounds.
With power off, loosen the 4 quarter-turn fas- rotated at three different locations. Remove the primary lamp. Reattach the lamp mechanism. Turn the power ON and position the intensity selector to position 1. Knuckle Assembly. Lamp mechanism should transfer to the alter- 4. Make sure all fuses are of the proper value.
Reinstall the front cover and turn power back on blinking. Repeat the procedures 1 through 5 above , but 6. Set the circuit breaker to ON. The breaker should move the lamp now in the primary position to not buzz or make any abnormal noises see the alternate socket. Troubleshooting, in Section 5. Insert a lamp in the empty lampholder and turn 7. Turn each intensity selector to position 1. The the power ON. The filament failure LED should go out. NOTE: Do not lubricate any components in the 8.
The light intensity should increase as the selec- lamp core. Turn the selector to OFF. The power LED should 6. Set the controller circuit breaker to OFF. Ensure that front cover does not interfere with move-! Test is complete. Turn power off at facility breaker, and lock- 6. Turn ON light. Remove the three mounting screws holding the 2. Inspect all wiring and wire connections; look for 3.
Check that the battery backup indicator LEDs any signs of loose connection for example, dis- and light are still on. Restore AC power and check that the indicator 3. Check fuse holders for any sign of deterioration.
LEDs have gone out. NOTE: Verify that both lamps are operational. Check glass bulb envelope.
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