Fluke 06-526 User Manual

Nuclear Associates

06-526 & 06-526-2200

RAD-CHECK™ PLUS

Operators Manual

Fluke Biomedical

Radiation Management Services

6045 Cochran Road Cleveland, Ohio 44139

440.498.2564

www.flukebiomedical.com/rms

Table of Contents

Section 1: General Information................................................................................... 1-1

1.1 Product Description ..................................................................................... 1-1

1.2 Specifications ...........................................................................................................1-2

1.3 Manual Addenda ......................................................................................................1-3

1.4 Customer Service/Technical Assistance ..................................................................1-3

Section 2:

2.1 Exposure Mode ........................................................................................................2-1

2.2 Exposure Rate Mode................................................................................................2-3

2.3 Optional Remote Detector Operation .......................................................................2-3

2.4 Applications ..............................................................................................................2-4

2.5 Radiographic Output (mR/mAs) Dose Measurements .............................................2-4

2.6 Determining Minimum Filtration Requirements (Beam Quality - HVL) .....................2-5

2.7 mAs Reciprocity .......................................................................................................2-6

2.8 Fluoroscopic Exposure Rate ....................................................................................2-6

2.9 Accuracy Considerations..........................................................................................2-7

2.9.1 Electrometer Drift................................................................................................2-7

2.9.2 Air Density Corrections.......................................................................................2-7

2.10 Sources of Error .....................................................................................................2-10

2.11 Precautions ............................................................................................................2-10

2.12 Operational Checks................................................................................................2-11

2.13 Drift Rate ................................................................................................................2-11

2.14 Battery Voltage.......................................................................................................2-11

2.15 Zero Set..................................................................................................................2-11

Section 3: Maintenance ............................................................................................... 3-1

3.1 Introduction...............................................................................................................3-1

3.2 Cleaning the Instrument ...........................................................................................3-1

3.3 Circuit Description (General) ....................................................................................3-1

3.4 Auto Reset (Dose Mode)..........................................................................................3-1

3.5 VRM Display.............................................................................................................3-2

3.6 Calibration and Adjustments.....................................................................................3-2

3.7 Zero (R33) ................................................................................................................3-3

3.8 Offset (R30, U4) .......................................................................................................3-3

3.9 Rate Calibration (R25)..............................................................................................3-3

3.10 Auto-Reset (R9) .......................................................................................................3-3

3.11 Remote Detector Calibration ....................................................................................3-3

3.12 Troubleshooting........................................................................................................3-4

3.13 Replacement Parts...................................................................................................3-4

3.14 Return Authorization.................................................................................................3-5

3.15 Protecting Your Warranty .........................................................................................3-5

Operation.................................................................................................... 2-1

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General Information

Product Description

Section 1

General Information

1.1 Product Description

The RAD-CHECK™ PLUS (see Figure 1-1) is a battery operated, portable unit which measures the output radiation of diagnostic x-ray equipment. The exposure is displayed on a 3 1/2 digit liquid crystal display (LCD) as either:

1. Exposure, in Roentgens (0.001 to 1.999 R) or SI units of milligrays (0.01 to 19.99 mGy).

2. Rate, in Roentgens per minute (0.01 to 19.99 R/min) or Si units of milligrays per minute (0.1 to

199.9 mGy/min).

Radiation is detected with an internal ionization chamber, or with an optional remote ionization chamber (part number 6000-528 or 6000-529).

The optional detectors consist of an ionization chamber and a 15-foot cable assembly. They are designed to be used with the RAD-CHECK PLUS for measuring dose and dose rates from diagnostic xray machines. They can also be used with any properly configured charge measuring electrometer.

MODEL 06-526

EXPOSURE-R RATE-R/min

RAD-CHECK™ PLUS

Figure 1-1. RAD-CHECK PLUS X-ray Exposure Meter

RATEON RESET

DOSEOFF

1-1

Nuclear Associates 06-526 & 06-526-2200

Operators Manual

1.2 Specifications

RAD-CHECK PLUS

Range Dose 0.001 to 1.999 R (.01 to 19.99 mGy)

Range Rate 0.01 to 19.99 R/min (0.1 to 199.9 mGy/min)

Measurement Area 18.3 cm2 (4.8 in Ø) effective

Standard Calibration

Chamber Bias Supply 270 V

Reproducibility Short term within 1% of full scale

Energy Response 5% from 30 kVp to 150 kVp

Electrometer Drift < 1 mR/min Maximum

Instantaneous Exposure Rate

Reset Switch ±1 mR of zero

Power Supply

Display 3 1/2 digit LCD; 1/2 inch high digits; low battery indication

Operating Conditions 10° to 40° C (50° to 104° F)

Relative Humidity 90%, non-condensing

Dimensions 6 (w) x 6.3 (d) x 2.5 in (h) (154 x 160 x 64 mm)

Weight 1.1 lbs (500 g)

5% at 75 kVp with 4 mm Al filtration at 22° C (72° F) and one atmosphere - 760 mm of Hg

20 R/sec

9 V alkaline battery (Duracell type MN 1604 or equivalent). 50 hour operation in manual or external mode; 100 hour operation in auto mode

Optional External Detectors (Part No. 6000-528 (30 cc) & 6000-529 (3 cc Mammo))

Radiation

Measurement

Nominal Sensitivity

Volume

Energy Response

Wall 0.031 inch phenolic

Termination Signal; coaxial, fully guarded BNC HV; recessed banana plug

Cable Length 15 feet

Dimensions

* Specifications are subject to change without notice.

Model 6000-528: x-rays from 30 to 150 kVp

Model 6000-529: x-rays from 16 to 90 kVp

Model 6000-528: 9 nC/R

Model 6000-529: 1 nC/R

Model 6000-528: nominal 30 cc

Model 6000-529: nominal 3 cc

Model 6000-528: 30 to 150 kVp, within 7%

Model 6000-529: 16 to 90 kVp, within 7%

Model 6000-528: 4 (w) x .54 (d) x 4 in (h) (101.6 x 13.7 x 101.6 mm)

Model 6000-529:

1.57 inch Ø x .54 inch deep (40 mm x 15 mm)

1-2

General Information

Manual Addenda

1.3 Manual Addenda

Any improvements or changes concerning the instrument or manual will be explained in an addenda included with the manual. Be sure to note these changes and incorporate them into the manual.

1.4 Customer Service / Technical Assistance

Should you require operation or application assistance or service of your instrument, contact Fluke Biomedical, Radiation Management Services at 440.248.9300.

1-3

Nuclear Associates 06-526 & 06-526-2200

Operators Manual

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