1. DL manuals
  2. NARDA
  3. Measuring Instruments
  4. 2250 SERIES
  5. Operating Manual

NARDA 2250 SERIES Operating Manual

Manual is about: Radiation Monitor

Summary of 2250 SERIES

  • Page 1

    2 250/98 .2 1 esm-10 “radman mobile” esm-20 “radman” esm-30 “radman xt” radiation monitor operating manual de patent 19726138 us patent 5955954.

  • Page 2

    Item number 1 meaning a threaded bush for tripod or extension rod b eyelet for fixing the absorber cap to the esm using nylon cord c yellow absorber cap with fixing clip d isotropic e-field probe e isotropic h-field probe f loudspeaker with earphone connector g leds for displaying alarm stages and o...

  • Page 3: Esm-10 “Radman Mobile”

    Esm-10 “radman mobile” esm-20 “radman” esm-30 “radman xt” radiation monitor 2252/xx 2250/xx 2251/xx operating manual.

  • Page 4

    If you have any questions, please contact your local sales office. Narda safety test solutions gmbh sandwiesenstr. 7 72793 pfullingen, germany  2016 author: joachim von freeden translators: john nutley/gary hess order no.: 2250/98.21 edition: 12/16.05 previous edition: 11/06.05 subject to change wi...

  • Page 5: Contents

    Introd uct ion safe ty mai n tenance speci fi - cati ons after un pa ckin g oper at ion and us e contents o rder ing in fo rm at io n mai n tenance application and use . . . . . . . . . . . . . . . . . . 5 functions and features . . . . . . . . . . . . . . . . 7 correct usage . . . . . . . . . . . ....

  • Page 7: About This Manual

    Introd uct ion 5 about this manual the esm-30 “radman xt” differs from the esm-20 “radman” and esm-10 “radman mobile” because it includes an additional data recorder. The term esm “radman” is used in this manual to refer to all three versions. Information that only applies to the esm-30 “radman xt” ...

  • Page 8: Use

    Intro duction 6 use the handy shape of the esm “radman” makes it ideal for three main areas of use:  as a warning unit – esm “radman” is worn on the body by attaching it to clothing using the clip or to a belt using the belt pouch supplied.  as a monitor unit – esm “radman” is used to check before...

  • Page 9: Functions and Features

    Introd uct ion 7 functions and features in contrast with other instruments, the six sensors of the esm “radman” independently monitor all the components of the electric and magnetic fields of a signal. This means the device can always measure the strongest field component. Esm “radman” measures isot...

  • Page 10: Notes:

    Intro duction 8 notes:.

  • Page 11: Warning

    9 sa fety 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. For more information, see pag...

  • Page 12: Warning

    10 sa fe ty 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. Read the operating manual carefully ...

  • Page 13: Warning Instructions

    11 sa fety  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 m...

  • Page 14: Warning

    12 sa fe ty  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 will always function correctly at all times.  be advised t...

  • Page 15: Warning Instructions

    13 sa fety  be advised that field strength can be attenuated by wet clothing. Esm “radman” should be worn outside the clothing to exclude the possibility of underestimating the electromagnetic field strength.  be advised that any kind of sticker or metallic label in the sensor area may lead to und...

  • Page 16: Warning

    14 sa fe ty  strong, low-frequency electrical fields, for instance in the vicinity of high-voltage cables, may sometimes influence the displayed value, especially when the esm “radman” is used as a rapid tester or as a leak locator. Warning warning instructions.

  • Page 17: Disposal In Accordance

    15 sa fety the esm “radman” is a high-quality instrument that will give you many years of reliable service. Nevertheless, even this product will eventually become obsolete. When that time comes, please remember that electronic equipment must be disposed of in accordance with local regulations. The e...

  • Page 18: Notes:

    16 sa fe ty notes:.

  • Page 19: Packing

    17 af ter unpack in g af ter unpack in g packing please retain the packing materials. These packing materials are designed so they can be reused. 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 ...

  • Page 20: Power Supply

    18 after unp ackin g after unp ackin g recovery after storage and transport the guaranteed operating temperature range of the instrument is -10°c to +50°c. Condensation may form on equipment that has been stored or transported at low temperatures when it is brought into a warmer environment. To avoi...

  • Page 21: Controls and Displays

    19 o p er ati o n an d use item number 1 meaning a threaded bush for tripod or extension rod b eyelet for fixing the absorber cap to the esm using nylon cord c yellow absorber cap with fixing clip d isotropic e-field probe e isotropic h-field probe f loudspeaker with earphone connector g leds for di...

  • Page 22:  Step 1:

    20 o p er ati o n an d use 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  step 3: function check of h-field sensor  step 4: function check o...

  • Page 23: After Switching On

    21 o p er ati o n an d use 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. – 100% led means: more than 75% of the ba...

  • Page 24: Normal Operation

    22 o p er ati o n an d use normal operation the e- and h-fields are measured simultaneously during 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 addition...

  • Page 25: Tip:

    23 o p er ati o n an d use this alarm state is indicated by a flashing red led. The instrument will also emit an audible “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....

  • Page 26: Esm-30 Only: Data Recorder

    24 o p er ati o n an d use 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 si...

  • Page 27: Operational

    25 o p er ati o n an d use 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 electromagneti...

  • Page 28

    26 o p er ati o n an d use if the battery capacity is only sufficient for a few more hours of operation, the led display of operational readiness is replaced by a brief “beep”. Resetting the max hold function  switch the esm “radman” off and then on again. Maximum value (max hold) led display batte...

  • Page 29: Areas Of Use

    27 o p er ati o n an d use areas of use esm “radman” has the following main areas of use.  as a warning unit  as a rapid tester  as a leak locator  esm-30 only: data recorder general handling instructions moving the instrument rapidly in an electrostatic field can have a disruptive influence. Th...

  • Page 30: Application

    28 o p er ati o n an d 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. The labels “e-field” and “h-field” are ...

  • Page 31: Procedure

    29 o p er ati o n an d use procedure  stand in your normal working position and slowly turn around through a complete circle. This allows esm “radman” to better detect radiation sources that are behind your back when you are working normally.  if the alarm sounds, leave the danger area carefully a...

  • Page 32: Application

    30 o p er ati o n an d use using esm as a rapid tester application wherever it is likely that electromagnetic radiation levels may be overestimated due to proximity effects of the human body (e.G. When working in the vicinity of short-wave or very short wave transmitters), use esm “radman” as a rapi...

  • Page 33: Procedure

    31 o p er ati o n an d use procedure  check your environment for sources of electromagnetic radiation.  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 danger...

  • Page 34: Application

    32 o p er ati o n an d 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.  if required: sc...

  • Page 35: Procedure

    33 o p er ati o n an d 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.  once the 100% alarm stage has been reach...

  • Page 36: Applications

    34 o p er ati o n an d use using esm-30 as a data recorder applications 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...

  • Page 37: Connecting The Earphone

    35 o p er ati o n an d 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. Applications and use.

  • Page 38: Reading Out Measured Values

    36 o p er ati o n an d 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. The e-field and h-field values are output separately with much higher accuracy than the led di...

  • Page 39: Esm-30 Only:

    37 o p er ati o n an d use the esm-ts interface set is required to read out the measured values from the esm “radman”. It includes software, a fiber optic cable, and an opto/electric converter with usb connector. The software program allows a wide range of remote control functions and also allows me...

  • Page 40: Standards and Guidelines

    38 o p er ati o n an d use standards and guidelines  dguv 15 (bgv b11), 2002 – occupational safety guideline of the employers’ liability insurance association. Guideline on electromagnetic fields  ieee c95.1-2005, ieee standard for safety levels with respect to human exposure to radio frequency el...

  • Page 41: Checking The Function

    39 main te nance 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. 2. Press the button on the test generato...

  • Page 42: Tip:

    40 ma inte n an ce 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, i...

  • Page 43: Repairs

    41 main te nance 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. Cleaning use only warm water to which a little detergent has been ...

  • Page 44: Calibration

    42 ma inte n an ce 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 and at 50% of standard limit value. The e- and h-field sensors are calibrated ...

  • Page 45: Changing The Batteries

    43 main te nance changing the batteries tip: 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 21). If none of the leds lights up during the test, you should set the date and time again after you have replaced t...

  • Page 46: Changing The Batteries

    44 ma inte n an ce changing the batteries.

  • Page 47: Miscellaneous

    45 speci fi - cati ons 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 a...

  • Page 48: Audible Warning

    46 sp ec if i- ca ti ons audible warning  built-in loudspeaker  audible alarm if alarm threshold exceeded (50% of relevant standard value)  “beep” repetition rate: 2 hz starting at 50% of standard, 4 hz starting at 100% of standard. Frequency response evaluation and limit values according to diff...

  • Page 49: Isotropy

    47 speci fi - cati ons 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 ...

  • Page 50: Esm-30 Only: Data Recorder

    48 sp ec if i- ca ti ons esm-30 only: data recorder save interval: the time between consecutive saves of recorded data can be set between 1 second and 3 minutes using the esm-ts interface set. Data set: the r.M.S., maximum and minimum values are calculated continuously during the selected save inter...

  • Page 51: Interfaces

    49 speci fi - cati ons capacity: the typical capacity is 1600 data sets, corresponding to about 27 hours operation at a save interval of 1 minute. The oldest recorded values will be overwritten if the memory capacity is exceeded (ring memory). Built-in clock: date and time data are provided from a b...

  • Page 52: Specifications

    50 sp ec if i- ca ti ons esm-30 only: the following additional functions are available:  read out values recorded in the data recorder. The transfer time for all the data when the data recorder is completely full is less than 5 minutes.  select the save interval: the time between consecutive saves...

  • Page 53: Power Supply

    51 speci fi - cati ons power supply dimensions weight calibration each instrument is calibrated and adjusted separately for the e-field and h-field at the alarm threshold of 100 mhz and at 50% of standard limit value. The recommended calibration interval is every 3 years. Batteries . . . . . . . . ....

  • Page 54: Declaration Of Origin

    52 sp ec if i- ca ti ons declaration of origin country of origin: germany ambient temperature environment classes iec 60721-3-2 class 7k2 nominal range of use . . . . . . -10°c to 55°c storage and transport . . . . . . -40°c to 70°c general information.

  • Page 55

    53 speci fi - cati ons esm-10 declaration of conformity.

  • Page 56

    54 sp ec if i- ca ti ons esm-20 declaration of conformity.

  • Page 57

    55 speci fi - cati ons esm-30 declaration of conformity.

  • Page 58: Esm-10 “Radman Mobile”

    56 or de rin g inf o rm at ion esm-10 “radman mobile” the frequency range values printed on the in- strument are applicable in each case. All esm-10 “radman mobile” devices have a long integration time (slow response). Standard frequency range part number h-field e-field fcc 96-326, aug. 1996, occup...

  • Page 59: Esm-20 “Radman”

    57 o rderi ng in fo rm at io n esm-20 “radman” 1 integration time of e-field sensor: 30 ms; h-field sensor: 1 s 2 integration time of e-field sensor: 1 s; h-field sensor: 1 s the frequency range values printed on the instrument are applicable in each case. Standard frequency range part number fast r...

  • Page 60: Esm-30 “Radman Xt”

    58 or de rin g inf o rm at ion esm-30 “radman xt” 1 integration time of e-field sensor: 30 ms; h-field sensor: 1 s 2 integration time of e-field sensor: 1 s; h-field sensor: 1 s the frequency range values printed on the instrument are applicable in each case. Standard frequency range part number fas...

  • Page 61: Standard Accessories

    59 o rderi ng in fo rm at io n standard accessories optional accessories earphone for audible alarm 2250/92.01 battery, dry-cell 2250/92.10 belt bag 2250/92.06 operating manual german 2250/98.01 english 2250/98.21 27 mhz test generator 2244/90.38 extension rod 2250/92.02 esm-ts interface set 2251/90...

  • Page 62: Narda Safety Test Solutions

    Narda safety test solutions gmbh sandwiesenstraße 7 72793 pfullingen, germany tel. +49 7121 97 32 0 fax +49 7121 97 32 790 support.Narda-de@l-3com.Com www.Narda-sts.Com narda safety test solutions 435 moreland road hauppauge, ny 11788, usa phone +1 631 231-1700 fax +1 631 231-1711 nardasts@l-3com.Co...

  • Page 63

    The key to this diagram is shown on the inside front cover. See also page 19..

  • Page 64: After Switching On

    After switching on 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. – 100% led means: more than 75% of the battery capacity is available. – 50% led means: more than 50% of th...