Fluke 190I User Manual

Victoreen® 190I

Survey Meter

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: Introduction................................................................................................ 1-1

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

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

1.3 Receiving Inspection.................................................................................... 1-4

1.4 Storage ........................................................................................................ 1-4

1.5 Battery Installation/Replacement ................................................................. 1-5

1.6 Power........................................................................................................... 1-5

1.7 Readout ....................................................................................................... 1-6

1.8 Internal Controls .......................................................................................... 1-6

1.9 External Controls ......................................................................................... 1-8

1.10 Operational Checkout .................................................................................. 1-9

1.11 Warnings and Cautions.............................................................................. 1-11

Section 2: Operation.................................................................................................... 2-1

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

2.2 Changing the Display Mode (Rate/Integ)..................................................... 2-2

2.3 Logging Displayed Data (Log) ..................................................................... 2-2

2.4 Remote Communication (Optional).............................................................. 2-3

Section 3: Theory of Operation................................................................................... 3-1

3.1 General Circuit Description .......................................................................... 3-1

3.2 Operational Considerations and Applications .............................................. 3-1

Section 4: Maintenance, Troubleshooting, and Calibration..................................... 4-1

4.1 Maintenance and Troubleshooting............................................................... 4-1

4.2 Recommended Spare Parts......................................................................... 4-2

4.3 Calibration.................................................................................................... 4-2

Appendix A: Applicable Drawings and Bill of Materials ............................................... A-1

A.1 Applicable Drawings ....................................................................................A-1

A.2 Applicable Bill of Materials ........................................................................... A-1

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Introduction

Product Description

Section 1

Introduction

1.1 Product Description

The 190I is a portable, battery-operated general-purpose survey meter for use with an internal GeigerMueller (GM) radiation detector. The design combines CMOS microprocessor technology, automatic range changing, and a Liquid Crystal Display (LCD) into an easy to use instrument.

The 190I is housed in a lightweight, plastic case designed for portability and durability. Measurement results are indicated on the front panel LCD. The display includes:

• A 51 element analog bar graph near the top of the display to provide real time response.

• A scale multiplier, located below the bargraph relates the analog bargraph full scale to the units

displayed.

• Detector range bargraph consisting of five horizontal bars that indicate the quantity of the dynamic

range of the detector in use.

• A 16 character alphanumeric display that (1) provides a digitized average of the bargraph value or

integrated reading with elapsed time, and (2) displays operational information (e.g., such as response time changes or changes in the units of the display).

• A backlight, activated by either of two front panel switches, that provides for operation in dark

environments.

The analog bargraph emulates an analog meter movement and is especially useful in survey applications. The digitized value is intended for quantitative analysis and data logging applications where an interpretation of the average reading of the analog bargraph is required.

The following controls are available from the front panel:

• Light (2) activates the LCD backlight.

• Mode changes the display units.

• Log, if activated, logs currently displayed data or changes current location identifier, depending on

the currently active logging mode (i.e., timed or manual logging).

NOTE

The optional Infrared Communicator, 190I-1A, is required to activate the Log function.

• Rate/Integ toggles the alphanumeric display between the digitized rate value and the integrate

value.

• Resp Time changes the response time on the first range or resets the integrate value and elapsed

time (if pressed and held for three seconds).

• Audio toggles the click output associated with counting events in the detector on/off and

acknowledges alarms.

• On/Off turns instrument power on/off when permitted by the microprocessor (i.e., when Logging is inactive or

all logged data has been uploaded to a computer).

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Operators Manual

The four (4) batteries are housed in a separate compartment accessed from the instrument back panel. All four 9-V alkaline batteries are required to operate the unit for approximately 200 hours. Visual and audible low battery indications are provided whenever battery power is low (four-minute intervals for the audible and continuous for the visual after a battery test).

CAUTION

To avoid possible damage to the instrument, all four batteries must be in place.

Communication with the 190I is accomplished through an optional infrared two-way adapter, Victoreen 190I-1A, which mounts at the top of the instrument. The adapter provides positive keying with the instrument for stable connection and communication.

1.2 Specifications

Radiation Detected Alpha, Beta, Gamma, or X-Ray depending on detector used

Operating Range Rate Mode:

CPM: 0-100; 0-1000; 0-10,000; 0-100,000; 0-1,000,000, and 010,000,000

CPS: 0-1, 0-10, 0-100, 0-1000, 0-10,000, 0-100,000, and 0-166,666

μR/hr, mR/hr, R/hr, μSv/hr, mSv/hr, Gy/hr, & Bq/cm

conversion factor of the probe used. Integrate Mode: Counts: 0-100,000,000; displayed as 4 digits up to 9999 counts, 3 digits

plus a K (for thousand) or an M (for Million) at higher counts. Seconds: 0-65535; displayed as 4 digits up to 9999 seconds, 3 digits in

minutes and tenths of minutes above 9999 seconds. μR, mR, R, cts, μSV, & mSv: depends on conversion factor of the probe

used.

: depends on

Accuracy Within 10% of reading between 10% and 100% of full-scale indication on

any range, exclusive of energy response.

Ranges Six (6) decades are available for calibration; the number of usable

decades is detector dependent.

Deadtime Correction Provided above 1000 CPM

Jam Detection Adjustable level for determining jam condition; provided in probe adapter

modules.

Alarm Can be set on any decade at 10% to 100% (in increments of 10%) of full scale.

Detector Internal Geiger-Mueller Tube

Warm-up Time 15 seconds (diagnostic testing)

Response Time (Bargraph) Selectable; 24, 12, 6, and 3 seconds.

24-second response time selected: Scale 1 0-100 24.0 2 0-1000 12.0 3 0-10K 3.0

Range (CPM) Response (seconds)

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Introduction

Specifications

4 0-100K 1.5 5 0-1M 1.5

6 0-10M 0.7

12-secondresponse time selected:

Scale 1 0-100 12.0 2 0-1000 6.0 3 0-10K 3.0 4 0-100K 1.5 5 0-1M 1.5 6 0-10M 0.7

6-second response time selected:

Scale 1 0-100 6.0 2 0-1000 3.0 3 0-10K 1.5 4 0-100K 1.5 5 0-1M 0.7 6 0-10M 0.7

3-second response time selected:

Scale 1 0-100 3.0 2 0-1000 1.5 3 0-10K 0.7 4 0-100K 0.7 5 0-1M 0.7 6 0-10M 0.7

Range (CPM) Response (seconds)

Front Panel Controls Eight push-button switches: LIGHT (2): either activates the LCD backlight; MODE: changes the display units; LOG: stores currently displayed data or changes current location

identifier, depending on the currently active logging mode; RATE/INTEG: toggles the alphanumeric display between the digitized

rate value and the integrate value; RESP TIME: changes the response time on the first range or resets the

integrate value and elapsed time; AUDIO: toggles the click output associated with counting events in the

detector, turns Audio on/off, and acknowledges alarm conditions; ON/OFF: turns instrument power on/off when permitted by the

microprocessor (i.e., when data logging is inactive or all logged data has

been read by a PC).

Internal Controls Main unit: LCD contrast adjustment and +5 V Power Supply

Environmental Effects Operating temperature range:

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Operators Manual

14°F to 140°F (-10°C to 60°C) with alkaline batteries Relative humidity range: 0 to 95% non-condensing Temperature dependence: Less than 5% of full scale change in the reading when the operating

temperature is in the 20°C to 50°C range.

Batteries Four 9 V batteries installed provide up to 200 hours of continuous operation.

Readout Backlit liquid crystal display includes:

• 51 element analog bar graph display

• Scale multiplier indication

• 16 character alphanumeric display

• Detector range bargraph

Construction Molded plastic case

Dimensions 9.0 x 3.6 x 2.0 in (23 x 9.2 x 5.0 cm)

Weight 1 lb 10 oz (740 grams) with four batteries installed

Options Communicator: P/N 190I-1A

1.3 Receiving Inspection

Upon receipt of the package:

1. Inspect the cartons (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 order.

NOTE

If any of the listed items are missing or damaged, notify Fluke Biomedical.

1.4 Storage

If the unit is to be stored prior to use, pack it in the original container if possible, and store in an environment free of corrosive materials, fluctuations in temperature, and humidity, and vibration and shock.

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Introduction

Battery Installation/Replacement

1.5 Battery Installation/Replacement

Four 9 V batteries are supplied with the 190I. The battery compartment is located on the back of the instrument. The compartment will hold up to four batteries but only one battery is necessary to operate the instrument. Use the following procedure to install/replace the batteries:

To prevent battery leads from shorting on the battery compartment's conductive coating, ensure that all four batteries are INSTALLED at all times.

Unit power must be left ON and batteries replaced one at a time to prevent data loss when the log mode is activated and logged data is to be retrieved.

1. Loosen the two-quarter turn fasteners securing the battery compartment cover to the back panel.

2. Remove the battery compartment cover to gain access to the batteries.

3. Replace the batteries one at a time, observing proper polarity.

CAUTION

The unit may make beeping sounds while inserting the batteries.

4. Replace the battery compartment cover, securing it with the two-quarter turn fasteners.

NOTE

1.6 Power

The 190I is powered using four 9 V batteries. The batteries (four) are housed in a separate compartment accessed from the instrument back panel. All four 9 V batteries are required to operate the unit for approximately 200 hours. Visual and audible low battery indications are provided whenever battery power is low (four minute intervals for the audible and continuous for the visual after a battery test).

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