Fluke Biomedical 940-513 User Manual
Fluke Biomedical Equipment
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Table of contents
Document Outline
- Installation and Operation Manual
- 1.1 Product Description
- 1.2 Specifications:
- 1.3 Features and Benefits
- 1.4 Safety Precautions and Terms
- 1.5 Product Handling and Storage
- 1.6 Accessories
- 1.7 Customer Service/Technical Assistance
- 1.8 Manual Addenda
- 2.1 Functional Description
- 3.1 Installation
- The following materials are needed to remove or install the Model 943-27-31 detector into the Model 940-513 Sampler:
- 1, 943-27-31 detector to be installed
- Detector mounting hardware:
- 1, P/N 943-27-47, Detector Mounting Flange
- 1, P/N 46-103, Quad lobed seal (Detector mounting flange to Adapter flange)
- O-Ring Lubricant, Dow Corning #55, or equivalent
- 6, P/N 5-1026, 10-32x0.5 Socket head cap screws, Stn Stl
- 1, P/N 943-27-48, Adaptor Flange
- 1. P/N 46-104, Quad lobed seal (Adapter flange to sampler body)
- 6, P/N 5-994, 10-24x0.75 Socket head cap screws, Stn Stl
- 6, P/N 5-795, #10 split washes, Stn Stl
- 1, 5/32 Hex head bit or T-handle tool
- 1, Dial Caliper with depth gage, 6 inch
- 1, Marking pen or pencil
- Proper installation of the Model 943-27-31 Detector requires inserting the detector into the sample volume until it stops against the Gas Chamber plug, inside the sampler. Once the detector has been fully inserted, the detector is then withdrawn a distance of 0.25 inches. This will replicate the installation method used during the sampler’s primary isotopic calibration, and the efficiency documented in the primary isotopic calibration report 958.350. The following procedure is recommended to obtain the required 0.25 inch detector withdrawal distance.
- 3.1.1.1 Turn OFF the high voltage power supply for the detector by turning the controlling Local Control Unit power OFF.
- 3.1.1.2 Remove the two (2) Thumb Screws and flat washers retaining the P/N 841A-123-16 Detector Plug and remove the plug. Retain the parts removed for future re-installation.
- 3.1.1.3 Loosen the six (6), 10-32 x 0.5 in detector flange mounting screws that provide a pressure retaining seal between the detector and the detector mounting flange.
- 3.1.1.4 Gently push the detector forward, until the detector end cap stops against the internal Gas Chamber Cap. The Gas Chamber Cap, P/N 940-513-11, is located on the opposite end of the sampler, inside of the sampler and attached to the P/N 841A-123-5 Filter Plug and Solenoid assembly, and defines the outer edge of the sample volume.
- 3.1.1.5 Tighten the six (6) detector flange mounting screws that were loosened in above.
- 3.1.1.6 Loosen and remove the six (6), 10-24 x 0.75 in socket head cap screws that retain the adapter flange to the sampler body. Carefully remove the detector and mounting flange assembly.
- 3.1.1.7 With the detector and mounting flanges removed, draw a line on the detector body, adjacent to the detector mounting flange, on the side of the detector mounting flange facing the connector end of the detector. This will indicate the position of the detector when fully inserted.
- 3.1.1.8 Loosen the six (6), 10-32 x 0.5 in detector flange mounting screws, the screws that retain the detector to the detector mounting flange.
- 3.1.1.9 If the detector has not been replaced for over 18 months, the detector mounting flange should be removed, and the 46-103 Quad lobed seal should be inspected for wear or damage. If the seal is worn, it should be replaced at this time. When replacing the seal, the new seal should be lubricated with O-ring lubricant, Dow Corning #55, or equivalent, and the detector mounting flange loosely re-installed
- 3.1.1.10 With the detector mounting flange mounting screws loosened, slide the detector mounting flange forward, toward the sensitive end of the detector, until the distance between the mark applied above and the detector mounting flange is 0.25 inches. Re-tighten the six (6) detector mounting screws to lock the detector and mounting flange assembly in position (i.e.with the detector withdrawn 0.25 inches from the Gas Chamber cap, when re-installed, providing a sensitive volume of approximately 11cc’s).
- 3.1.1.11 Using the caliper, recheck the distance between the line marked on the detector body, the fully inserted position, and the detector mounting flange. This distance must be 0.25 inches to ensure the efficiency obtained in the primary isotopic calibration will be realized in operation.
- 3.1.1.12 If the detector has not been replaced for over 18 months, the 46-104 Quad lobed seal that seals the adaptor mounting flange to the sampler body should be removed and inspected for wear or damage. If the seal is worn, it should be replaced at this time. When replacing the seal, the new seal should be lubricated with pneumatic grease, Dow Corning #55, or equivalent, and the Quad lobed seal re-installed
- 3.1.1.13 Carefully re-insert the detector assembly into the sampler body.
- 3.1.1.14 Install and tighten the six (6), 10-24 x 0.75 in socket head cap screws and split lock washers that retain the detector assembly to the sampler body.
- 3.1.1.15 Again, using the caliper, measure the distance from the cable end of the detector to the rear face of the detector mounting flange. Record this distance on the Data Sheet provided. This dimension may be used in the future to verify the installed detector position.
- 3.1.1.16 Re-install the P/N 841A-123-16 Detector Cap, the two (2) Thumb screws and the two (2) flat washers. This completes the detector withdrawal adjustment and detector installation.
- 3.1.1.17 To complete the re-installation, the system should be pressure tested prior to returning the unit to service. The maximum system pressure is 10 psig.
- 3.1.1.18 This will complete the installation
- 3.1.3 Setup
- 3.2 Operator Interface Functions
- 3.3 Accessories
- Prior to operating the unit, the sampler should be subjected to a pressure test at a maximum value of 10 psig.
- 4.1 Maintenance
- 4.2 Calibration
- 5.1 Troubleshooting
- 5.2 Start-up Test
- 5.3 Periodic Manual Test
- 5.4 Recommended Spare Parts
- 5.5 Return Authorization
- C1 Supplemental Data (Customer Specific)