Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Subscribe to Our Youtube Channel
Related Manuals for Electronic Control Concepts 890
Summary of Contents for Electronic Control Concepts 890
- Page 1 INSTRUCTION MANUAL MODEL 890 X-RAY DOSE METER / EXPOSURE TIME METER Electronic Control Concepts Fax: 845-247-9028 sales@eccxray.com | www.eccxray.com PO Box 182, 1160 US Route 50 A Division of US Nuclear Corp Milford, Ohio 45150-9705 USA www.usnuclearcorp.com Phone: 800-VIP-XRAY...
-
Page 2: Table Of Contents
Rev: October 28, 2014 MODEL 890 X-RAY Dose Meter / Exposure Time Meter INSTRUCTION MANUAL TABLE OF CONTENTS Page DESCRIPTION GENERAL INSTRUCTIONS SWITCH SETTINGS DISPLAY OPERATION REMOTE SENSOR CONNECTION STATUS MESSAGES BATTERY REPLACEMENT WARRANTY SERVICE INFORMATION MEASURING HALF VALUE LAYER... -
Page 3: Description
The Model 890 automatically resets at the beginning of each exposure, holding the reading until the next exposure. The most convenient way of using the 890 is to place it under the x-ray head. With the target positioned at the point of interest The unit can be used with an appropriate phantom or metal filter. -
Page 4: General Instructions
GENERAL INSTRUCTIONS SWITCH SETTINGS In order to keep operation easy and straightforward there is only one switch on the front panel of the instrument. The switch is immediately below the display. The switch serves as an ON/OFF Switch and measurement selection. The three positions are as follows: ... -
Page 5: Operation
Model 890, but the dose covering the entire area of the x-ray beam. Body dose or effective dose is the comprehensive dose for the organ or body. This can be... -
Page 6: Remote Sensor Connection
Over Range - The x-ray output is too high. Use a lower mA or kV setting. Over Scale - The dose value exceeds the measurable range of the Model 890. Low Battery - Battery is low. The unit may still be operated for several hours, but accuracy may suffer. -
Page 7: Battery Replacement
Meter from defects in materials and workmanship for a period of 2 years. There is no warranty on the battery. ECC will replace or repair any Model 890 during the first year after shipment that does not show obvious signs of abuse. Contact the factory as described below. -
Page 8: Measuring Half Value Layer
Google Store as “HVL Calculator”. Here is what the App looks like: Place the Model 890 Dose Meter at a distance from the x-ray head that is normally used for procedures. Take an x-ray and record the dose measurement. Place the first sheet of aluminum (Al) in the x-ray beam, midway between instrument and x- ray head. -
Page 9: Technical Information
TECHNICAL INFORMATION Radiation Exposure and Dose The concepts of radiation exposure and dose are important, for the patient as well as x-ray personnel. Dose Definition When an x-ray is taken, radiation in the form of x-ray beams, are released. Using these beams, the x-ray technician can make images of whatever is being examined. - Page 10 ). Mathematically, dose area product is equal to the measured dose times 1.21 cm . Please note that the Model 890 cannot be left in the x-ray beam when an actual x-ray image is desired. Body Dose and Effective Dose Body dose cannot be measured directly.
-
Page 11: Measuring X-Ray Quality
When setting up for this test, the height of the x-ray head above the Model 890 is not important since this test is based on the change of dose at different mA and mAs settings. Select a height that gives a reasonably large value of dose. - Page 12 X-ray mA and mAs Linarity For a particular mAs, doubling the time or mA will double the mAs. If there is a problem at different mA or time settings, the change will not be linear. As an example, the following test data was recorded at an actual x-ray facility: dose kV set mA set...
-
Page 13: Specifications
9 Volt Battery Remote Sensor Accessible from bottom of case Hard Carrying Case 870HC Duracell MN1604 or equivalent Electronic Control Concepts Fax: 845-247-9028 sales@eccxray.com | www.eccxray.com PO Box 182, 1160 US Route 50 A Division of US Nuclear Corp Milford, Ohio 45150-9705 USA www.usnuclearcorp.com...
Need help?
Do you have a question about the 890 and is the answer not in the manual?
Questions and answers