Narda 8718B Data Sheet

Electric and Magnetic Field Measurement

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THE MODEL 8718B SURVEY METER —

the world’s most popular RF Survey meter just got more powerful
and easier to operate*

FEATURES

Microprocessor-Based Design

·

4 Line x 20 Character Display

·

One-Touch Zero

·

Displays Fields in Any Unit:

·

mW/cm

2/m2

A
International Standards

Intuitive Operation with Help Screens

·

· Sophisticated Data-Logging

· Time and Spatial Averaging with Data

Storage

2

,W/m2, V/m, A/m, V2/m2,

, pJ/cm3and Percent of

· Fiber Optic and Cable Inputs

· RS232 Interface

· Calculates Percent of Standard

· Small, Lightweight, Ergonomic Design

The revolutionary Model 8718B can satisfy the needs of almost
anyone that needs to measure electromagnetic fields

Basic measurements made simple

Advanced measurements unmatched by any other instrument

*Already own a Model 8718? See page 90 to learn how it can be upgraded to take
advantage of most of the new features of the 8718B.

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BASIC MEASUREMENT:

The 8718B was designed with the new or occasional user
in mind so that the most common mistakes cannot hap
pen.

No range changes—the meter automatically displays

·

a numeric value over the probe’s entire measurement
range.

No confusing scales—simply select the correct probe

·

(the meter even makes you double check) and the
meter will display the correct reading

ADVANCED MEASUREMENTS

Even the occasional user will be able to make use of the
8718B’s advanced features. Experienced surveyors can
do everything with a single instrument— accurately and in
considerably less time than with any other instrument.
The key is to access the menu system which is always
available via one of the four function keys.

The menu options are:

DATA LOG

· Log data points with time & date stamp plus reference
number

· Log spatially averaged points with reference number

· Continuous logging at various rates

TIME AVERAGE

·

Turns fixed time averaging (various duration) on or off

·

Select "standards" averaging that automatically selects
the averaging period to match the standard or guidance
selected

SPATIAL AVERAGING

·

Turns the spatial averaging mode on or off

BATTERY/LITE

·

Check battery charge status and estimated time
remaining

·

Turn the back light on or off

UNITS

·

Select from all available units of measure for the probe
in use.

RS232

·

Change the baud rate.

No difficult zeroing procedure—just touch one key.

·

­No unit calculations—simply select the unit you want.

·

Only units appropriate for the probe are allowed.

No multiplication for probe correction factors—simply

·

enter the frequency of the source you are surveying
and the corrected measurement value is displayed.

CORRECTION FACTOR

Enter a numeric probe correction factor so that the me

·

ter will automatically show the corrected value

SETTINGS

· Check or set the meter's internal clock

· Enter a temperature (used when meter and probe are in

different locations)

· Clear the memory of logged data

· Set the function keys for either left or right-handed

operation

· Turn the low level noise blanking feature on or off

· Adjust the display contrast

CABLE/FIBER OPTIC

·

Select the meter input between cable and fiber optic
receiver

LOCKOUT

·

Locks the keypad so that settings cannot be accidentally
changed, as when climbing

ALARM

·

Turn the audio alarm on or off

·

Set the alarm threshold

·

Turn the variable alarm on and off

STANDARDS

·

Select the standard or guidance that is referenced for
various measurement options

BLANK

·

Blanks the display and locks the keypad

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Electric and Magnetic Field Measurement

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The 8718B has many unique features

KEYPAD

Positive, tactile feel keys

·

Key functions identified by color

·

Function keys located for

·

easy reach with thumb
Special function keys quickly

·

operate most common operations
Help is always available via a

·

dedicated key

DISPLAY

4 line x 20 character alphanumeric

·

Backlighting allows use in dimly

·

lit areas
Anti-glare lens over display

·

Fully shielded against strong electro

·

magnetic fields

-

HOUSING

· Rugged, cast aluminum housing

·

Fully shielded against strong elec
tromagnetic fields

BUILT-IN TEST SOURCES

· Microwave waveguide output
tests all higher frequency
probes

·

-

Low frequency source injects
signal directly into the detectors
of probes via probe test points.

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USA TEL: [phone] • FAX: [phone] • E-MAIL: [e-mail] • www.narda-sts.com

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CABLE INPUT

Quick-release connector com

·

patible with all 8700D Series
probes
8700 D-series probes can

·

be connected directly or via
included cable
Older style 8700 series probes

·

can be used with optional
adaptor cable

RS232 INTERFACE

· Connect to PC to extract logged
data or to input probe calibration

information via Narda Windowsä

compatible Interface Software

·

Connect here for real time interface

FIBER OPTIC INPUT

Built-in fiber optic receiver

-

·

AUDIO ALARM

·

Alarms at precise, preset level

·

Variable tone mode available

·

Alarms if input exceeds probe’s
measurement range

RECORDER OUTPUT

Analog output for various

·

recording instruments

TRIPOD MOUNT

CHARGER INPUT

· Charges internal NiCad battery

· Connect to mains for long term

monitoring

SHAPE

Easy to hold and well

·

balanced
No sharp corners

·

STRAP

Adjustable hook-and-loop

·

allows user to hold without
hand fatigue

· 1/4-20 NC tapped hole tripod

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SPECIFICATIONS

Model

Display

Size

Weight

Controls

Input/Output

Zeroing

Measurement Range

Units

Data Logging

Averaging

Audible Alarms

Maximum Level Hold

Battery

Built-in Test Features

Temperature

Operating
Non-Operating

Humidity

Accessories Supplied

Optional Accessories

a

Specify the appropriate charger and power cord option

b

See page 79 for information regarding Narda's Rechargeable Battery Management Program

8718B-XX

4 Line x 20 character alphanumeric dot matrix liquid crystal display with back light

11.3" x 3.4" x 2.2" (28.9 cm x 6.0 cm x 5.5 cm) nominal.

3.0 lbs (1.36 kg)

22 Key membrane keypad

Probe cable input
Fiber optic link input
RS232 Input/Output
Probe RF Test Sources (dual frequency)
Recorder output

One touch auto-zero

Single, 30 dB dynamic range
Bar graph autoranges or select one of three 20 dB ranges
Compatible with all Narda 8700 Series probes

mW/cm

Log any data point with time/date stamp from primary measurement mode
Log with time/date stamp and reference number
Continuous logging at user defined rate and duration for up to 24 hours

Time and spatial averaging capabilities with variable time periods and update rates

Multilevel adjustable audio output proportional to field strength
Probe overload warning

Continuously available

7.2V rechargeable, approximately 20 hours per charge (backlight off)

Unit has dual frequency RF sources for system check and selfdiagnostics at turn on with
continuous monitoring

-10°C to +50°C

-20°C to +70°C

0% to 95%, non-condensing

Storage case that holds meter and up to four probes and optional fiber optic link, charger, probe
extension cable Model 8744-04, electric field attenuator Model 8713B, PC interface cable, manual,
and Windows

Tripod and Insulated Handle Adaptor, Insulated Handle/Tripod

a

2

, W/m2, V/m, A/m, V2/m2,A2/m2, pJ/cm3and Percent of International Standards

TM

compatible software for survey and calibration data transfer

b

ORDERING INFORMATION

When ordering a Model 8718B meter, select the appropriate battery charger and line cord option and add it to the basic in
strument model number. For 230V, 50-60 Hz options and line cord plug outlines, refer to page 53 of this catalog.

1 = 115V, 50/60 Hz charger with integral 0 = No cord (115V charger)

plug. No cord required(specify option 10). 1-9 = Various plug styles (230V charger)

2 = 230V, 50/60 Hz charger. Cord required .

8718B-

Examples: 8718B-10 = 115V, integral plug (no line cord) for North America, Japan

8718B-23 = 230V, line cord for United Kingdom

34

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Safety Test Solutions

communications company

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USA TEL: [phone] • FAX: [phone] • E-MAIL: [e-mail] • www.narda-sts.com

GERMANY TEL: [phone] • FAX: [phone] • E-MAIL: [e-mail] • www.narda-sts.de

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