NARDA RadMan Operating Manual
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NARDA RadMan Operating Manual

Radiation monitor
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ESM-20 "RadMan"
ESM-30 "RadMan XT"
Radiation Monitor
Operating Manual
DE Patent 19726138
US Patent 5955954
Arrow.com.
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Summary of Contents for NARDA RadMan

  • Page 1 ESM-20 “RadMan” ESM-30 “RadMan XT” Radiation Monitor Operating Manual DE Patent 19726138 US Patent 5955954 Arrow.com. Downloaded from...
  • Page 2 Item Meaning number Threaded bush for tripod or extension Eyelet for fixing the absorber cap to the ESM using nylon cord Yellow absorber cap with fixing clip Isotropic E-field probe Isotropic H-field probe Loudspeaker with earphone connector LEDs for displaying alarm stages and operation (“heartbeat”) Indication of applicable standard and frequency range...
  • Page 3 ESM-20 “RadMan” ESM-30 “RadMan XT” Radiation Monitor BN 2250/xx BN 2251/xx Operating Manual Arrow.com. Downloaded from...
  • Page 4 If you have any questions, please contact your local sales office. Narda Safety Test Solutions GmbH Sandwiesenstr. 7 72793 Pfullingen, Germany  2004 Author: Joachim von Freeden Translators: John Nutley/Gary Hess Order no.: 2250/98.21 Edition: 10/05.09 Previous Edition: 09/04.12 Subject to change without notice...

  • Page 5: Table Of Contents

    Controls and displays ....17 Switching on ESM “RadMan” ..18 Normal operation ....20 ESM-30 only: Data recorder .
  • Page 6 Arrow.com. Downloaded from...

  • Page 7: Application And Use

    Application and use About this manual The ESM-30 “RadMan XT” differs from the ESM-20 “RadMan” in that it is equipped with a data recorder. Where both instruments are meant, the term ESM “RadMan” is used. Information that only applies to the ESM-30 “RadMan XT”...
  • Page 8 • As a monitor unit – ESM “RadMan” is used to check beforehand that limit values are not exceeded in areas where humans are present.

  • Page 9: Functions And Features

    Different versions of ESM “RadMan” are available to cover these differences (see page 51). Power is supplied from two standard batteries, giving a typical operating time of 200 hours.
  • Page 10 Notes: Arrow.com. Downloaded from...

  • Page 11: Correct Usage

    Correct usage This instrument left the factory in perfect condition. To ensure safe usage and to preserve it in good condition, please follow the safety instructions below. The instrument must only be used under the conditions and for the purposes for which it was designed.

  • Page 12: Warning Instructions

    Warning instructions Warning General instructions governing the use of field strength measuring equipment • Do not touch or use the field strength meter to touch items carrying dangerous voltages. • Make sure that you know which laws, standards and regulations apply in your area.
  • Page 13 Warning instructions Warning • Never place or hold field strength measuring equipment inside field generating equipment or machines (e.g. microwave ovens or induction furnaces) as this may result in destruction of the field strength measuring equipment which is not designed to withstand field strengths intended for materials processing.
  • Page 14 Warning instructions Warning • Be advised that secondary radiators (reflecting objects, such as a metal fence) may result in local amplification of field strength. • The safety of persons within electromagnetic fields must not be based purely on the measured values produced by field strength measuring equipment, since the built-in redundancy is not sufficient to ensure that the instruments...
  • Page 15 Be advised that an underestimation of the electromagnetic field strength cannot be excluded if the field strength measuring equipment is worn on the body. The ESM “RadMan” has been specially constructed to exclude the possibility of underestimating the electromagnetic field strength as far as possible.
  • Page 16 "Radar Application Note". • Strong, low-frequency electrical fields, for instance in the vicinity of high-voltage cables, may sometimes influence the displayed value, especially when the RadMan is used as a rapid tester or as a leak locator. Arrow.com. Downloaded from...

  • Page 17: Packing, Pack Contents, Transport

    The original packing materials will reliably protect the device from damage in case you have to transport it later. Pack contents check The following are included with your ESM “RadMan”: • ESM “RadMan” with absorber cap • Batteries, 2 pieces • Holster • Earphone •...

  • Page 18: Storage, Power Supply

    ESM “RadMan” is shipped without batteries fitted. Fitting the batteries ⇒ Make sure that the ESM “RadMan” is switched off. ⇒ Fit the batteries (see page 41). ⇒ Switch the ESM “RadMan” on after changing the batteries and monitor the self test (see page 19).

  • Page 19: Controls And Displays

    Controls and displays Item Meaning number Threaded bush for tripod or extension Eyelet for fixing the absorber cap to the ESM using nylon cord Yellow absorber cap with fixing clip Isotropic E-field probe Isotropic H-field probe Loudspeaker with earphone connector LEDs for displaying alarm stages and operation (“heartbeat”) Indication of applicable standard and...

  • Page 20: Switching On Esm "Radman

    Switching on ESM “RadMan” Automatic switch on routine The switch on routine has four main steps. The end of each step and the beginning of the next is signaled by a “beep”. • Step 1: LED check • Step 2: Battery charge state check •...
  • Page 21 Switching on ESM “RadMan” After switching on After you switch on the ESM “RadMan”: 1. The LEDs light up briefly one after another, starting with the 12.5% LED. A “beep” is then heard. 2. The battery charge state is indicated. One of the four LEDs lights up.

  • Page 22: Normal Operation

    The larger of the two values is displayed. If electromagnetic radiation is present, the ESM “RadMan” indicates the magnitude of the radiation level by means of four LEDs; alarms are additionally signaled by a beep from the loudspeaker.
  • Page 23 BEEP twice a second as an additional warning signal. This status is maintained for as long as the ESM “RadMan” continues to measure this level of electromagnetic field strength. 100% LED indicates alarm state: 100 % of the power density (= 100% of the field strength) permitted by the relevant standard has been reached.

  • Page 24: Esm-30 Only: Data Recorder

    ESM-30 only: Data recorder Automatic recording of measured values The measured values are automatically displayed and recorded when the instrument is switched on. A new block of data is started each time the instrument is switched on. Evaluating measurement values The data blocks can be evaluated singly or together on a PC with the aid of the ESM-TS Interface Set, available as an option.

  • Page 25: Operational Readiness, Max Hold

    Operational readiness, Max Hold The ESM “RadMan” indicates operational readiness every 10 seconds. Operational readiness is indicated by an LED which depends on the electromagnetic radiation that has occurred or been measured. This also allows the magnitude of the highest measured value of electromagnetic radiation to be read off (Max Hold).
  • Page 26 Full ≥100% 100% Empty BEEP ≥50% Full ≥50% Empty BEEP ≥25% Full ≥25% Empty BEEP <25% 12.5% Full <25% 12.5% Empty BEEP Resetting the Max Hold function ⇒ Switch the ESM “RadMan” off and then on again. Arrow.com. Downloaded from...

  • Page 27: Applications And Use

    Moving the instrument rapidly in an electrostatic field can have a disruptive influence. The effects of this have been minimized in the ESM “RadMan” by means of special construction features. Despite this, moving the instrument very quickly can produce field strengths that are too high by several V/m.
  • Page 28 Applications and use Using ESM as a personal warning unit Application The ESM “RadMan” is worn on the body, preferably by placing it in the breast pocket of your shirt or jacket. Preparation ⇒ Slide the yellow absorber cap over the end of the instrument.
  • Page 29 This is caused by proximity effects of the human body acting on the electromagnetic radiation. In such cases, hold the ESM “RadMan” in your hand or screw it on to the extension rod (accessory). Refer to the next section for details.
  • Page 30 (e.g. when working in the vicinity of short-wave or very short wave transmitters), use ESM “RadMan” as a rapid tester. In this way, you can monitor your environment or get a quick picture of the field strengths that are present.
  • Page 31 ⇒ If required: Screw the extension rod on to the absorber cap. ⇒ After the check, screw the ESM “RadMan” to a non-metallic tripod so that you can work in the area and still be warned of any dangerous electromagnetic radiation levels.
  • Page 32 Applications and use Using ESM as a leak locator unit Application The ESM “RadMan” is used to detect leaks in waveguides. Preparation ⇒ Slide the yellow absorber cap over the battery compartment. The “narda” marking is no longer visible. The clip should point to the LED side.
  • Page 33 Applications and use Procedure ⇒ Hold the ESM “RadMan” at arm’s length. ⇒ Move the ESM “RadMan” slowly along the waveguide at a relatively large distance from it. ⇒ If a leak is suspected, slowly move the ESM “RadMan” closer to the suspected location.
  • Page 34 The data recorder records the variation with time of the surrounding electromagnetic radiation. If ESM-30 “RadMan XT” is worn as a warning unit, the exposure of the wearer during the course of the working day can be recorded. If ESM-30 “RadMan XT” is used as a rapid tester, it records the profile of the flux density in the area under test.
  • Page 35 Applications and use Connecting the earphone The earphone supplied can be connected to the ESM “RadMan” so that the audible alarm can still be heard reliably even in areas where high noise levels are present. Arrow.com. Downloaded from...
  • Page 36 Applications and use Reading out measured values The measured values can be read out via the optical interface (A) of the ESM “RadMan”. Data is transferred at a rate of 25 measured values per second. Arrow.com. Downloaded from...
  • Page 37 The software program allows a wide range of remote control functions and also allows measured values to be read out and saved. ESM-30 only: Data recorded using the ESM-30 “RadMan XT” can be easily evaluated in various ways and printed out as a report. Arrow.com. Downloaded from...
  • Page 38 Der Einfluß des menschlichen Körpers auf die elektrischen und magnetischen Feldkomponenten in unmittelbarer Nähe des Körpers. “Frequenz”, Vol. 52 (September/October 1998), pp. 170-174 Standards-compliant test of non-ionizing electromagnetic radiation on radar equipment. Author: Dr. Rainer Bitzer See also www.narda-sts.de Arrow.com. Downloaded from...

  • Page 39: Checking Field Probe Function

    Checking field probe function Checking the function The sensor functions of the ESM “RadMan” can be checked with the aid of a Test Generator (BN 2244/90.38). The H-field and E-field sensors are tested separately. 1. Place the Test Generator in the vicinity of the sensors.
  • Page 40 Checking field probe function Tip: Make sure that the Test generator batteries are not run down, otherwise the output power of the generator will be insufficient to properly test the field sensors. Although performing an extended self-test with the aid of the Test Generator may permit a fault to be detected, it provides no guarantee that all sensors are measuring correctly, for instance after inexpert handling such as when...

  • Page 41: Repairs, Cleaning, Calibration

    Repairs ESM “RadMan” may only be repaired by authorized service centers. Please contact your sales office. The casing screws are sealed. If the casing screw seals are damaged, no guarantee claims will be entertained.
  • Page 42 Repairs, Cleaning, Calibration Calibration Each ESM “RadMan” is calibrated and adjusted before it leaves the factory. Each instrument is calibrated and adjusted separately for the E-field and H-field at the alarm threshold of 100 MHz (27.12 MHz for version /08, /58 or 200 MHz for version /05, /55) and at 50% of standard limit value.

  • Page 43: Changing The Batteries

    Only use 1.5 V AAA size alkaline manganese batteries. 1. ESM-30 only: Switch on the ESM-30 “RadMan XT” and monitor the self test (see page 19). If none of the LEDs lights up during the test, you should set the date and time again after you have replaced the batteries.
  • Page 44 Changing the batteries Arrow.com. Downloaded from...

  • Page 45: Specifications

    Specifications Miscellaneous All the data specified here is valid under the following conditions unless otherwise stated: ✓ Sinusoidal signals ✓ The instrument is located in the far field region of the source ✓ Ambient temperature: 23 °C ±3 °C ✓ Relative humidity: 25% to 75% The data include all relevant partial errors for calculating the overall error to IEC 359.
  • Page 46 Frequency response evaluation and limit values according to different standards ESM “RadMan” is available in a wide range of different versions. Please refer to the tables on page 51 and page 52. The frequency range values printed on the instrument apply in each case.
  • Page 47 Specifications The limit value traces in the standards exhibit sharp edges. These limit value traces are simulated in the ESM “RadMan” by means of equalizer networks. The frequency response quoted refers to the characteristic of an ideal equalizer circuit containing only 1st order decoupled components.
  • Page 48 Specifications Isotropy Isotropy (27 MHz to 500 MHz) ... .+4/-2 dB RMS error RMS error ..... ±0.2 dB (for 8 CW signals of same exposure in the en- tire display range) Overload protection...
  • Page 49 Data block: All data sets recorded between switching on and switching off the ESM-30 “RadMan XT” are combined into a data block. Several data blocks can be stored in the data recorder at any one time. These data blocks are accessed by the ESM-TS Interface Set for evaluation.
  • Page 50 Specifications normal batteries. You have at least 30 seconds in which to change the batteries if the ESM-30 “RadMan XT” is switched on before replacing the batteries and the self test has been completed successfully. Otherwise, you should check the time settings. The date and time are set using the ESM-TS Interface Set which is available as an option.

  • Page 51: General Information

    General information Power supply Batteries ....2 size AAA, alkaline manganese primary cells Operating time ..typ. 200 hours if LEDs and alarm off Battery status display .

  • Page 52: Environmental Data

    Environmental data Ambient temperature Nominal range of use ..-10 °C to 55 °C Storage and transport ..-40 °C to 70 °C Environment classes Unless otherwise stated, the specifications apply within the range of environment classes IEC 721-3-7 IE 73 with 7M3 Interference generation and suppression to .

  • Page 53: Instrument Versions

    Instrument versions ESM-20 “RadMan” Standard Frequency Order Order range number number (BN) (BN) H-field E-field fast re- slow re- sponse sponse BGV B11, 2001, 1 MHz 1 MHz 2250/01 2250/51 EXP. 1 1 GHz 40 GHz FCC 96-326, 3 MHz...
  • Page 54 Instrument versions ESM-30 “RadMan XT” Standard Frequency Order Order range number number (BN) (BN) H-field E-field fast re- slow re- sponse sponse BGV B11, 2001, 1 MHz 1 MHz 2251/51 2251/01 EXP. 1 to 40 1 GHz FCC 96-326, 3 MHz 3 MHz –...
  • Page 55 3 MHz 27 MHz 2251/79 1992, occupational 1 GHz 40 GHz The frequency range values printed on the in- strument are applicable in each case. All ESM-30 "RadMan XT ELF-immune" have a long integration time (slow response). Arrow.com. Downloaded from...

  • Page 56: Accessories

    Accessories Standard accessories Earphone for audible alarm BN 2250/92.01 Holster BN 2256/90.01 Battery, dry-cell BN 2250/92.10 Belt bag BN 2250/92.06 Operating manual German BN 2250/98.01 English BN 2250/98.21 Optional accessories 27 MHz Test Generator BN 2244/90.38 Extension rod BN 2250/92.02 ESM-TS Interface Set BN 2251/90.50 Hardcase...
  • Page 57 Arrow.com. Downloaded from...
  • Page 58 Narda Safety Test Solutions GmbH Sandwiesenstrasse 7 72793 Pfullingen, Germany Int’l phone: +49-7121-9732-777 Int’l fax: +49-7121-9732-790 E-mail: support@narda-sts.de www.narda-sts.de Calibration, maintenance and service: Int’l phone: +49 7121-9732-499 Int’l fax: +49 7121-9732-500 E-mail: service@narda-sts.de Narda Safety Test Solutions 435 Moreland Road...
  • Page 59 The key to this diagram is shown on the inside front cover. See also page 17. Arrow.com. Downloaded from...
  • Page 60 – 12.5% LED means: Less than 25% of the battery capacity is available. – No LED lit means: Batteries need changing. ESM “RadMan” will soon no longer be operational. A “beep” is then heard. 3. The H-field sensor is activated; the E-field sensor is inactive.

This manual is also suitable for:

Radman xtEsm-20Esm-30

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