Atec Narda-EMR-20C-21C - Manual (Page 2)

Electric and Magnetic Field Measurement
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Excellence
RF Safety
Test Solutions
USA TEL: (1) 631 231-1700 • FAX: (1) 631 231-1711 • E-MAIL: [email protected] • www.narda-sts.com
GERMANY TEL: 49-7121-9732-777 • FAX: 49-7121-9732-790 • E-MAIL: [email protected] • www.narda-sts.de
an communications company
narda
Safety Test Solutions
Specifications
EMR-20C EMR-21C
Frequency Range 100 kHz to 3 GHz
Field Measured E-Field Only, Isotropic Detection, Diode Sensor
Measurement Range
0.6 to 800 V/m
(CW signals > 300 kHz)
0.6 to 20 V/m (True RMS)
0.2 to 320 V/m (CW signals > 300 kHz)
0.2 to 10 V/m (True RMS)
Measurement Resolution 0.01 V/m
Overload Levels
700 mW/cm 2 (CW)
70 W/cm 2 (Peak)
175 mW/cm 2 (CW)
17.5 W/cm 2 (Peak)
Absolute Error ±1 dB (27.5 V/m and 27.12 MHz)
Linearity Error a
0.6 to 1.25 V/m = ±3dB
1.25 to 2.5 V/m = ±1 dB
2.5 to 400 V/m = ±0.5 dB
400 to 800 V/m = ±0.7 dB
0.6 to 1.2 V/m = ±1dB
1.2 to 200 V/m = ±0.5 dB
200 to 320 V/m = ±0.7 dB
Frequency
Response Error
b
100 kHz to 100 MHz = ±0.45 dB
100 MHz to 3 GHz = ±1.4 dB
Isotropic Deviation
(Typical) Field probe only = ±0.5 dB for Freq. > 1 MHz
Complete system = ±1.0 dB for Freq. > 1 MHz
Temperature Error + 0.2 / - 1.0 dB (0 to +50°C)
H-field Immunity
100 kHz to 5 MHz = >35 dB – 20 dB x log f
(f in MHz)
Above 5 MHz = > 20 dB (Typical)
>20 dB Typical
Settling Time 1 second (0 to 90% of measured value) Typical
Display Refresh Rate 400 msec. Typical
Units Displayed V/m, A/m, mW/cm 2 , W/m 2 and “% of limit value”
Levels Displayed Current reading, maximum reading or average reading
Audible Alarm Variable setting, piezoelectric
Interfaces Fiber Optic, serial interface for results transfer, remote operation and calibration
Power Supply Rechargeable AA batteries (supplied)
Operating Temperature 0 to +50°C
Size (H x W x D, approx.) 18.3" x 3.78" x 2.52" (465 x 96 x 64 mm)
Weight (approx.) 450 grams
Notes:
a
Referenced to 27.5 V/m and 27.12 MHz
b
Error after using supplied correction factors, includes calibration accuracy