CONFIDENTIAL R.S.I. CORPORATION University Based Safety Training Personal Monitors

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University Based Safety Training

Personal MonitorsPersonal Monitors


FCC/OSHAFCC/OSHA

• The FCC states very clearly in OET 65 that both E & H fields must be determined if equipment below 300MHz is in use at the site, and if in the near field you should measure to ensure the real the MPE levels.

0.3 1 3 10 30 100 300 1 3 10 30 1000.3 1 3 10 30 100 300 1 3 10 30 100 0.3 1 3 10 30 100 300 1 3 10 30 1000.3 1 3 10 30 100 300 1 3 10 30 100

MHzMHzMHzMHz GHzGHzGHzGHz

100100100100

10101010

1111

5555

30303030

.2.2.2.2

mW/cmmW/cm22

mW/cmmW/cm22

AM FM

MPE LAW

Controlled =100%Controlled =100%

Uncontrolled

FCC RulemakingFCC RulemakingFCC RulemakingFCC Rulemaking

Both E&HBelow 300MHz

6 Min TWA

30Min TWA

Cellphones20% reading is OSHA’S ACTION LIMIT

20%

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Personal MonitorsPersonal Monitors Personal MonitorsPersonal Monitors

Provide Personal Monitoring Provide Personal Monitoring for areas where RF may be for areas where RF may be present. (PPM’s)present. (PPM’s)

ManyMany areare narrow in band narrow in band widthwidth (w/limited frequency (w/limited frequency response only E or H field) response only E or H field) and not fully isotropicand not fully isotropic ( (may may not be accurate in near not be accurate in near field).field).

SM

R ad iatio n L ab o rato rie s


PPE UsePPE Use

PPE can offer a high degree of protection

only if it is used properly.

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ELECTRIC Narda 8848

Narda 8862xt Electric

Page 8


PPE 1910.132PPE 1910.132

• In general, the greater the levels of PPE protection, the greater are the associated risks. For any given situation, equipment and clothing should be selected that provide an adequate level of protection.

LESS than 6 Min.


NARDA 8860


E-Only


Rad Rad ManMan


• Isotropic sensors for non-directional measurements.• Frequency:

• Response Shaping for the FCC Standard.

• Results displayed as percent of maximum value permitted by the relevant standard.

• Optical interface for data transfer to PC.• *Wide frequency range:

• H-field from 3 MHz to 1 GHz. • E-field from 3 MHz to 18 GHz.

Rad Rad ManMan

*Standard = FCC 96-326, occupational


• 3 Year Calibration ( some are 1 or 2 years, check your unit).

• Uses standard batteries.

• Simultaneous E and H-field measurement.

Rad Rad ManMan


Using the RadManUsing the RadMan

• Step 1: LED check.

• Step 2: Battery charge state check.

• Step 3: Function check of H-field sensor.

• Step 4: Function check of E-field sensor.

The switch on routine has four main steps.The end of each step and the beginning of the next is signaled by a “beep”.

Automatic Switch On Routine:

…… TIP …...The function checks of the H and E-field sensors are only useful if a test generator is used. The field sensors are activated separately in these twofinal steps, so they can be independently tested.


• 100% LED means: More than 75% battery capacity available.

• 50% LED means: More than 50% battery capacity available.

• 25% LED means: More than 25% battery capacity available.• 12.5% LED means: Less than 25% battery capacity available.


Switching On:Set the yellow on/off switch to the “ON” position.

After Switching On:

<beep>

NO LED MEANS BATTERIES NEEDS CHANGING. (The remaining operation time is just a few more hours.)

1. The LEDs light up briefly one after another, starting with the 12.5% LED. (A <beep> is then heard)

2. One of the four LEDs will light up indicating the battery charge state:


3. The H-field sensor is activated; the E-field sensor is inactive.


<beep>

4. Now the E-field sensor is activated; and the H-field sensor is inactive.

<beep> <beep> (double “beep”)

The switch-on phase is complete. The instrument is now ready for use.


• The E and H fields are measured simultaneously during operation.

• The larger of the two values is displayed.• If electromagnetic radiation is present, the RadMan

indicates the magnitude of the radiation level by means of four LEDs. (Alarms are also signaled by a beep from the loudspeaker.)


Normal Operation:

…….. TIP ……..If you want to measure the E and H fields separately, switch the unit off and then on again. The effective H-field is displayed briefly during step 3 of the switch-on routine. The effective E-field is displayed briefly during step 4.


– The highest measured value of electromagnetic radiation was below 25% of the power density permitted by the relevant standard.

– The instrument is operating correctly.


RadMan indicates operational readiness every 10 seconds:

Operational readiness is indicated by an LED which depends onthe electromagnetic radiation that has occurred or been measured.

This also allows the magnitude of the highest measured value ofelectromagnetic radiation to be read (Max Hold).

• Brief flashing of the 12.5% LED means:


PPE 1910.132PPE 1910.132

• No single combination of protective equipment and clothing is capable of protecting against all hazards. Thus, PPE should be used in conjunction with other protective methods. The use of PPE can itself create significant worker hazards, such as heat stress, physical and psychological stress, and impaired vision, mobility, and communication.



• The highest measured value of electromagnetic radiation was at least 50% (but less than 100%) of the power density permitted by the relevant standard.

• The instrument is operating correctly.

– The highest measured value of electromagnetic radiation was at least 25% (but less than 50%) of the power density permitted by the relevant standard.

• Brief flashing of the 25% LED means:

– The instrument is operating

correctly.• Brief flashing of the 50% LED means:


• The highest measured value of electromagnetic radiation was at least 100% of the power density (Note it could be over 1000% of the field strength) permitted by the relevant standard.


• Brief flashing of the 100% LED means:

…... NOTE …...If the battery capacity is only sufficient for a few morehours of operation, the LED display of operational readiness is replaced by a brief “beep” from the loudspeaker.

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CONFIDENTIAL R.S.I. CORPORATION University Based Safety Training Personal Monitors