ANSI N42.17A-1989 TEST RESULTS

 

MODEL 19 MicroR SURVEY METER

TEST NOTES

  • Test groups included five or more instrument sets.
  • NT = Not Tested
  • N/A = Not Applicable

GENERAL CHARACTERISTICS

 

Characteristics Under Test

Range of Values of Influence Quantities

Limits of Variation

Pass / Fail

AC Power

102-132 VAC
178-238 VAC

Reading cannot vary by more than plus or minus 5%

N/A

Battery Power

0 - 100 hours

Reading cannot vary by more than plus or minus 10%

Pass

Battery Power Indicator

Test performed at the voltage that triggers the battery failure indication

Reading cannot vary by more than plus or minus 10%

Pass

AC powered instrument with battery backup

Instrument must be marked for battery endpoint

 

N/A

Test performed at the voltage that triggers the battery failure indication

Readings cannot vary by more than plus or minus 10%

N/A

ELECTRONIC AND MECHANICAL TESTS

 

Characteristics Under Test

Range of Values of Influence Quantities

Limits of Variation

Pass / Fail

Check Circuits

Per manufacturer's recommendations

 

 

Alarms (reset)

Dose rate to activate alarm

See section 5.2.1

N/A

Alarms (delay)

Dose rate to activate alarm

Alarm must be indicated within 1 - 60 seconds

N/A

Alarm (threshold drift)

Dose rate to activate alarm

Alarm setpoint must not drift more than plus or minus 10% over a 500 hour period

N/A

Stability

3 hours (battery powered instruments)

Reading cannot change by more than plus or minus 6%

Pass

Stability

24 hours (AC powered instruments)

Reading cannot change by more than plus or minus 6%

N/A

500 hours (AC powered instruments)

Reading cannot change by more than plus or minus 15%

N/A

Geotropism

Tested in three mutually perpendicular orientations

Reading cannot vary by more than plus or minus 6%

Pass

Response Time

See Table 1 of Standard

See Table 1 of Standard

Pass

Coefficient of Variation

Greater than or equal to 1 mR/h, 1 mrd/h, 10 mrem/h, 2000 dpm

Reading cannot change by more than plus or minus 10%

Pass

Less than or equal to 1 mR/h, 1 mrd/h, 10 mrem/h, 2000 dpm

Reading cannot change by more than plus or minus 15%

Pass*

Line Noise Susceptibility

See table 2 of standard

Reading cannot change by more than plus or minus 15%

N/A

RADIATION RESPONSE

 

Characteristics Under Test

Range of Values of Influence Quantities

Limits of Variation

Pass / Fail

Accuracy (photon dose rate)

0.1 mrd/h - 1000 rd/h

Cannot vary by more than plus or minus 15% of conventionally true value

NT

Accuracy (count rate and contamination monitors)

50 dpm/square cm to 100,000 dpm/square cm

Cannot vary by more than plus or minus 15% of conventionally true value

NT

Accuracy (beta or neutron dose rate)

0.1 mrem/h - 1000 rem/h

Cannot vary by more than plus or minus 15% of conventionally true value

NT

Probe surface sensitivity

Stated by manufacturer

 

NT

Photon energy dependence

80 keV - 1.25 MeV

See equation in section 6.3 of standard

NT

20 keV - 3.0 MeV

NT

Beta Energy Dependence

0.5 MeV - 3.5 MeV (Emax)

See equation in section 6.3 of standard

NT

0.2 MeV - 3.5 MeV (Emax)

NT

Neutron Energy Dependence

0.025 eV - 14 MeV

See equation in section 6.3 of standard

NT

Photon Radiation Overload

100X upper limit less than or equal to 10 rd/h

Correct response within 2 minutes

NT

10X upper limit greater than 10 rd/h

NT

Angular Dependence

0 - 45 degrees (photon)

Instrument reading must not vary by more than plus or minus 20%

NT

45 - 90 degrees

Instrument reading must not vary by more than plus or minus 50%

NT

0 - 45 degrees (beta)

NT

INTERFERING RESPONSE

 

Characteristics Under Test

Range of Values of Influence Quantities

Limits of Variation

Pass / Fail

Extracameral Response

Range of instrument

Reading cannot change by more than plus or minus 5%

NT

RF Fields

Per user requirements

Readings cannot change by more than plus or minus 15%

NT

100 V/m, 0.3 - 35 MHz

NT

100 V/m at approx. 140 MHz

NT

Microwave Fields

Per user requirements

NT

100 W/square meter at 915 MHz, 2450 MHz

NT

Electric Fields

5000 V/m

NT

100 V/m at 60 Hz, 400 Hz

NT

Magnetic Fields

800 A/m

Pass

Interfering Radiation

See Table 3 of Standard

 

NT

ENVIRONMENTAL FACTORS

 

Characteristics Under Test

Range of Values of Influence Quantities

Limits of Variation

Pass / Fail

Temperature

0 to 40 degrees C

Reading cannot vary by more than plus or minus 15% of reading at 22 degrees C

Pass

-10 to +50 degrees C

Reading cannot vary by more than plus or minus 20% of reading at 22 degrees C

Pass

10 to 35 degrees C

Reading cannot vary by more than plus or minus 15% of reading at 22 degrees C

Pass

Temperature Shock

From -10% to 22 degrees C

Pass

From 50 to 22 degrees C

Pass

Humidity

40 to 90% RH at 22 degrees C

Readings cannot vary by more than plus or minus 15% of the reading at 40% RH

Pass

Mechanical Shock

50 g acceleration of 18 ms, half sine wave, test on 3 orthogonal axes (10 times)

Reading cannot vary by more than plus or minus 15%

NT

Vibration

2 g acc., 10 - 33 Hz, test on 3 orthogonal axes for 15 min.

NT

Ambient Pressure

70 - 106 kPa

Pass

Splashproof

2 min. fine spray (4 L/min at 2 meters from nozzle)

Pass

 

*Due to the relationship of the response time and the coefficient of variation, readings on the lowest scale were taken using SLOW response time (manufacturer's suggestion).