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®
Victoreen 875
High Range Containment Monitor
Operators Manual
February 2005
Manual No. 877-1-1 Rev. 9
©2004, 2005 Fluke Corporation, All rights reserved. Printed in U.S.A.
All product names are trademarks of their respective companies
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Fluke Biomedical Radiation Management Services 6045 Cochran Road Cleveland, Ohio 44139 440.498.2564 120 Andrews Road Hicksville, New York 11801 516.870.0100 www.flukebiomedical.com/rms
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Table of Contents Section 1: Introduction................................................................................................ 1-1 1.1 General Description ..................................................................................... 1-1 1.2 Specifications............................................................................................... 1-1 1.3 Equipment Overview.................................................................................... 1-3 1.4 Rece
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Appendix A: Calibration and Test Procedures..............................................................A-1 A.1 Calibration Procedures ................................................................................ A-1 A.2 Test Procedures .......................................................................................... A-1 Appendix B: Cable and Pull Box Procedures................................................................B-1 B.1 Cable and Pull Box Procedures ...............
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Introduction 1 General Description Section 1 Introduction 1.1 General Description Containment Monitor 875 NOTE The 875 Containment Monitor has been qualified for use in Nuclear Safety related applications. Qualification Test Reports, 950.301, 950.308A, and 950.310A define the parameters that have been verified by test and are available for purchase. Containment Monitor 875 functions as an accident monitor for reactor containments, refer to Figure 1-1. It consists of the 877
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Victoreen 875 Operators Manual 3 Hermetic Integrity 1E10-5 cm of helium per second @ one standard atmosphere Chamber Fill Gas Nitrogen/helium (2%) at atmospheric pressure Dimensions (W x H x D) with Mounting Bracket 9.25 x 12.5 x 10.06 in (234.95 x 317.5 x 255.52 mm) Weight Approximately 18 lb (8.17 kg) Temperature, Storage 40° to 160°F (4° to 71°C) Temperature, Operating 40° to 160°F (4° to 71°C) 375°F (180°C) peak, accident, 3 hours Relative Humidity 100% (waterproof) 60
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Introduction 1 Specifications Relative Humidity (Storage): 0 to 95% (non- condensation) Relative Humidity (Operating): 0 to 90% (non- condensation) 3 Irradiation: 3.5 to 1 x 10 Rads @ 60°C integrated over 40 years life. Mounting 876-1-55, Rack Chassis Available Options (consult factory) 876A-100: Readout, for use with digital systems Outputs: 0 - 100 mV 0 - 50 mV 0 - 10 mV 0 - 5 V Figure 1-2 illustrates the typical energy response for the detector, Figure 1-3 illustrates typ
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Victoreen 875 Operators Manual Pull Box Assembly (878-12-5) The 878-12-5 Pull Box Assembly is designed to allow for thermal expansion of the detector cables and to provide a service loop. Various optional pull-box configurations are available per Table 1-1. For more information refer to Section 2, Appendix B, and Appendix C. Table 1-1. Pull-box Variations Outlet, Size and Model Inlet, Size and Location Inlet/Outlet Orientation Location 878-12 1" 270° 2, ¾", 90° 180° 878-12-M 1 1"
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Introduction 1 Equipment Overview Figure 1-1. High-Range Containment Monitor 875 1-5
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Victoreen 875 Operators Manual Figure 1-2. Typical Energy Response Curve – Detector 877-1 1-6
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Introduction 1 Equipment Overview Figure 1-3. Typical Linearity Detector 877-1 Figure 1-4. Radiation Input vs. Meter Reading (Calculated Curve) 1-7
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Victoreen 875 Operators Manual Figure 1-5. High-Range Detector, Recommended Installation 1.4 Receiving Inspection Upon receipt of the unit: 1. Inspect the carton(s) and contents for damage. If damage is evident, file a claim with the carrier and notify Fluke Biomedical, Radiation Management Services at 440.248.9300. 2. Remove the contents from the packing material. 3. Verify that all items listed on the packing list have been received and are in good condition. NOTE If any o
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Introduction 1 Storage 1.5 Storage Storage of Victoreen instruments must comply with level B storage requirements as outlined in ANSI N45.2.2 (1972) Section 6.1.2(.2). The storage area shall comply with ANSI N45.2.2 (1972) Section 6.2 Storage Area, paragraphs 6.2.1 through 6.2.5. Housekeeping shall conform to ANSI N45.2.3 (1972). Level B components shall be stored within a fire resistant, tear resistant, weather tight enclosure in a well- ventilated building. Storage of Victoreen instrume
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Victoreen 875 Operators Manual (Blank page)
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Installation 2 Installation Section 2 Installation 2.1 Installation Installation of the monitoring system consists of selecting suitable mounting sites for each component of the system, mounting each of the components, and connecting the components into the system configuration. Installation of this system is as follows: NOTE Refer to the applicable drawings in Appendix C for further installation Instructions. Rack Chassis The 876-1-55 Rack Chassis is a standard 19-inch chassis
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Victoreen 875 Operators Manual NOTE Under potential L.O.C.A. conditions of pressure and temperature, the cable may expand as much as 11 inches per 100 feet. The distance from the pull box to the detector will be determined by the amount of flex hose used to seal the detector cables. Additional information is found in the paragraph below Cable Sealing and in CABLE- 877 and 878-12-3 procedures in Appendix B. Once the cables have been pulled and tested, the pull box cover must be
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Installation 2 Installation done until cable is pulled and tested. (Refer to the procedure Cable-877, in Appendix B, for more information.) NOTE Minimum bend radius of the 878-1-9 cable is four inches. When bending conduit or flex hose, take this into consideration. Typical bend radius for P/N 878-12-30 is ¾ inch; stainless steel flex house is 12 inches. 2.2 Cable and Wiring Installation Detector Cable Inside Containment Detector cables used inside containment are to be inst
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Victoreen 875 Operators Manual Thickness 0.015 inch (0.38 mm) nominal Outer Diameter 0.217 inch (5.51 mm) nominal Impedance 75 ohms nominal Capacitance 22 pf/ft nominal Ancillary Wiring Ancillary wiring for computer, recorder, power and alarm contacts are installed according to drawing GEL 875-1 and Table 2-1 which indicates connector pin designations. Table 2-1. Installation Computer & Recorder Function J3 Ground D Ground F Computer E Recorder
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Operation 3 Operation Section 3 Operation 3.1 Operation Once installation is completed, operation is fully automatic. The 876A-1 Readout Module continuously indicates the level of radioactivity measured at the detector site. When the radiation level exceeds an alarm set point, an alarm is actuated. The following steps explain how to operate the 875 monitor: 1. Turn the function switch to the TEST position, and press and release the Electronic Check Source (ECS) push button. About fou
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Victoreen 875 Operators Manual alarm level. Return the module to its proper position in the rack. Tighten the rear holding screws. Tighten the knurled holding knob on the front. Return the module to service. During normal operation, the radiation field is usually less than 1 R/h (the lower limit of detection of the high range detector) and the analog meter display will be at the low end of the meter scale.
