NARDA EHP-50-G User Manual

1-4 General Information
1.5 EHP-50G Main
specifications
When not differently specified the following specifications are
referred to operating ambient temperature 23°C and relative
humidity 50%.
Table 1-1 Technical specifications of the EHP-50G Electric and Magnetic Field Analyzer
Electric Field Magnetic Field
AUX input (MMCX Zin 1kΩ)
Frequency range
1 Hz ÷ 400 kHz
Measurement range (1) low range
high range
5 mV/m ÷ 1 kV/m
500mV/m ÷ 100 kV/m
(146 dB)
0.3 nT ÷ 100 µT
30 nT ÷ 10 mT
(150 dB)
30 nV ÷ 10 mV
3 uV ÷ 1 V
(150 dB)
Overload (high range)
200 kV/m (≤ 3 kHz) 20 mT (at 50 Hz) 2V
Dynamic range
106 dB 110 dB 110 dB
Resolution (2)
0.1 mV/m
1 mV/m Stand alone
0.1 nT
1 nT Stand alone
0.1 nV
Displayed average noise level (3)
Isotropic result
Single axis
5 mV/m
3 mV/m
0.3 nT
0.2 nT 30 nV
Flatness (@ 100 V/m, 3 µT, 1mV)
(5 Hz ÷ 40 Hz)
(40 Hz ÷ 300 kHz)
(300 kHz ÷ 400 kHz)
±0.35 dB
±0.35 dB
±0.35 dB
±0.50 dB
±0.35 dB
±0.50 dB
±0.35 dB
±0.35 dB
±0.35 dB
Anisotropicity (typ)
0.54 dB 0.12 dB ---
Linearity (referred to 100 V/m and 3 µT)
0.2 dB (1 V/m ÷ 1 kV/m) 0.2 dB (200 nT ÷ 10 mT) 0.2 dB (10 µV ÷ 1 V)
Internal memory
Up to 24 hours regardeless the logging rate
Internal data logger
1 measurement every 30 or 60 seconds
Spectrum analysis method
FFT
Time domain analysis method (4)
ICNIRP 1998, 2010 and 2013/35/EU weighed peak analysis
Acquisition method
Simultaneous three axis acquisition
SPAN
100 Hz, 200 Hz, 500 Hz, 1 kHz, 2 kHz, 10 kHz, 100 kHz, 400 kHz
(500Hz to 400kHz in Stand Alone mode)
Start frequency
1 Hz with SPAN 100 Hz; 1.2 % of the SPAN with wider SPAN
Stop frequency
Equal to the SPAN
Immunity to E fields
--- < 0.2 uT @ 20 kV/m ---
Immunity to H fields
< 10 V/m @ 1 mT --- ---
Calibration (5)
internal E
2
PROM
Typical temperature deviation
@ 55 Hz referred to 23°C
(@ 50% of relative humidity when applicable)
-4x10
-3
dB/°C within -20 +55 °C
-8x10
-3
dB/°C within -20 +23 °C
+13x10
-3
dB/°C within +23 +55 °C
---
Typical relative humidity deviation
@ 55 Hz referred to 50%
(@ 23 °C)
+11x10
-3
dB/% within 10 50 %
+22x10
-3
dB/% within 50 90 %
-7x10
-3
dB/% within 10 50 %
+10x10
-3
dB/% within 50 90 %
---
Dimensions
92 x 92 x 109 mm
Weight
550 g
Tripod support
Threaded insert ¼”
Environmental protection
IP42
Internal battery
3.7 V / 5.4 Ah Li-Ion, rechargeable
Operating time
>9 hours in standard mode
24 hours in stand alone mode
Recharging time
< 6 hours
External supply
10 ÷ 15 VDC, I = approx. 500 mA
Optical fiber connection
Serial Optical Interface 38400 Baud - RP02 connector up to 40 m (USB-OC)
Firmware updating
through the optical link by USB or RS232
Self test
automatic at power on
Operating temperature
-20 to +55 °C
Operating relative humidity (6)
0 to 95 %
Charging temperature
0 to +40°C
Storage temperature
-30 to +75°C
(1) For each single axis. Ranges to be selected manually
(2) For the lower measurement range
(3) DANL is frequency and SPAN depending. The specified best performance is referred to f ≥ 50 Hz and SPAN ≤ 1 kHz
(4) The FPGA operates in the time domain, implementing the hardware filters exactly as if the analog signal were passing through a chain of RC filters, being able to reconfigure poles and
zeroes to adapt to legislations.
(5) Recommended re-calibration interval 24 month
(6) Without condensation
Specification are subject to change without notice

NARDA EHP-50-G Specifications

General

Brand	NARDA
Model	EHP-50-G
Category	Measuring Instruments
Language	English