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Welch Allyn 12500
Binocular Indirect Ophthalmoscope
Power Source
OWNER’S MANUAL
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Thank you for purchasing a Welch Allyn power source for use with the Welch Allyn 12500 Binocular Indirect Ophthalmoscope (BIO). The operating instructions found in this manual should be followed to ensure many years of accurate and reliable service. Please read these instructions carefully before using your power source. NOTE: If you plan to connect the Welch Allyn 12500 BIO to a transformer within an instrument stand or console, please review the directions for connecting the instrument to a
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1. Wall/Desk Power Source The Welch Allyn No. 74250 Wall/Desk Power Source is designed with versatility in mind. There are several mounting options. 1. Wall mount 2. Desk top mount 3. Desk edge mount Features of the Wall/Desk Power Source include: Condensing lens On/Off switch storage area rheostat control Scope turns on when lifted from cradle to headset UL/IEC/CSA approved plug-in transformer Wall Mounting Fasten the mounting plate to the wall with the appropriate screws (wood screws are pr
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Desk Top Usage The Welch Allyn Wall/Desk Power Source can be set on any flat sur- face. To prevent scratching and sliding, the small rubber pads should be attached to the bottom of the unit. Remove the pads from their backing and place them on the outermost corners of the unit’s base. Desk Top Mounting Desk Edge Mounting NOTE: Do not use rubber pads if mounting to the EDGE of a desk or table. The Welch Allyn Wall/Desk Power Source can also be mounted on the edge of a desk or cabinet. This will
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IN OUT Operation Once the Wall/Desk bracket is mounted, the unit is ready for use. Plug the Power Source into an appropriately-grounded outlet. Then plug the cord from the Power Source into the receptacle labeled “in” on the Wall/Desk bracket. To complete the connection, screw the external sleeve down until it stops — this will secure the plug in place. The cord from the BIO should be connected to the “out” receptacle in the same manner that the power source is connected. Be sure to complete the
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2. Portable Power Source The Welch Allyn No. 74260 Portable Power Source provides complete portability and ease of use. Features of the Portable Power Source are: Charging indicator On/Off switch and rheostat control Belt clip In use/time remaining indicator Back Front UL/IEC/CSA approved direct plug-in recharger Operation When fully charged and operated at full intensity, the Portable Power Source has approximately fifty minutes of on-time. When the BIO is used at half intensity, the on-time
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To Change the Battery Unscrew the two screws which hold the housings together. Be certain not to touch the green circuit board or any of the components on it. Disconnect the old battery pack from the connector and attach a new battery pack. Install the battery pack with label facing you, as shown. Be sure the battery pack connector and wire lies across the bottom edge of the housing, BATTERY as shown. Use only Welch Allyn No. 72240 rechargeable battery pack. Cleaning DISCONNECT All external su
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Specifications No. 74260 Portable Power Source Power Pack: Model Number: 74201 Output Voltage: 4.8 Vdc Output Current: 2.55 A On-time: 42-50 minutes @ high setting. On-time not to exceed 10 minutes, off-time not less than 15 minutes. Low Voltage Indication Time: 4-7 minutes Recharge Time: 10 hrs minimum Recharge Current: 225 ± 50 mA Approvals for: UL-2601-1, CAN/CSA C22.2 No. 601.1, IEC 601-1, IEC 601-1-2, CE Charger: Model Number: 74280 Input: 95-130 Vac, 60 Hz 0.08 A @ 120 Vac, 60 H
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Specifications No. 74250 Wall/Desk Power Source Plug-In Power Transformer: Model Number: 74290 Input: 95-130 Vac, 60 Hz 0.18 A @ 120 Vac, 60 Hz Output: 5.15 Vac, 2.60 A @ 120 Vac Output Cable: SJT/SVT, 2-conductor, AWG #18 Approvals for: UL-2601-1, CAN/CSA C22.2 No. 601.1, IEC 601-1, IEC 601-1-2, CE Wall/Desk Bracket: Model Number: 74241 Input: 5.15 Vac, 60 Hz, 2.60 A Output at Output Jack: 4.8 Vac, 2.55 A Approvals for: UL-2601-1, CAN/CSA C22.2 No. 601.1, IEC 601-1, IEC 601-1-2, CE 1-7
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Service and Warranty Information Service For customers in North America, please return instruments requiring service to a Welch Allyn Technical Service Department listed below or to an authorized Welch Allyn distributor. Technical Service Department Welch Allyn, Inc. 4341 State Street Road Skaneateles Falls, NY 13153-0220 U.S.A. Telephone: 800-669-9771 Fax: 315-685-4653 For customers outside of North America, return your unit to a local, authorized Welch Allyn distributor or to your nearest Wel
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Welch Allyn, Inc. 4341 State Street Road P.O. Box 220 Skaneateles Falls, NY 13153-0220 Telephone: 315-685-4560 1-800-535-6663 (only in U.S.A.) FAX: 315-685-3361 Part No. 741916-3 Rev. A Printed in U.S.A.
