High-impedance voltage measurements

High-impedance voltage measurements
With compliments
Helmut Singer Elektronik
www.helmut-singer.de info@helmut-singer.de
fon +49 241 155 315
fax +49 241 152 066
Feldchen 16-24 D-52070 Aachen Germany
High-impedance voltage
measurements
Active Voltage Probe ESH2-Z2,
Passive Voltage Probe ESH2-Z3,
Attenuator ESH2Z31
Shielded probes are used for high-impedance measurements of signals and interference on lines. They comprise highpass
elements for decoupling low-frequency
AC voltages.
Active Voltage Probe ESH2-Z2 is
intended for RFI voltage measurements
on lines not carrying AC supply voltage.
7
3
1
2
4
8
5
6
Passive Voltage Probe ESH2-Z3 (3), hook tip (1), solder tip (2), spring tip (4), probe tip (5), Attenuator
ESH2Z31 (recommended extra for ESH2-Z3 only) (6), earth cable (7) and AC voltage tip (for ESH2-Z3
only) (8) correspond to the accessories of Active Voltage Probe ESH2-Z2
Passive Voltage Probe ESH2-Z3 (to
CISPR16-1 and VDE0876) is particularly
suitable for measuring RFI voltages on
high-level lines, e.g. lines carrying AC
supply voltage.
Attenuator ESH2Z31 is used for determining the source impedance (to
CISPR16-2 and VDE0877 part 1/11.81)
during measurements with ESH2-Z3.
Active Voltage Probe ESH2-Z2 with hook tip (1)
Specifications
General data
Frequency range
Voltage division ratio
1)
ESH2-Z3
Storage temperature range
–25°C to +70°C
9 kHz to 30 MHz
9 kHz to 30 MHz
Power supply for ESH2-Z2
±10 V ±1 V (≈±15 mA)
30 dB
Length of connecting cable
1.5 m
RF connector
BNC
Termination
50 Ω
Supply and coding
(voltage division ratio)
12-contact Tuchel connector, male
Weight
200 g
10 dB
Measurement range with
Rohde&Schwarz test receivers
and spectrum analyzers
(average value indication,
frequency-dependent, IF band−20 dB(μV) to
width 200 Hz)
+120 dB(μV)
Max. input voltage (Vrms)
f ≤63 Hz
63 Hz to 30 MHz
–10°C to +45°C
ESH2-Z2
Deviation of voltage division
ratio from nominal value (Zout of
source 50 Ω; for typical frequency responses see manual) <1 dB
Input impedance
Nominal temperature range
<−1 dB to +5 dB
Ordering information
0 dB(μV) to
+150 dB(μV)
118 kΩ ±5%⎟⎥ 8 pF
1.5 kΩ ±2%⎟⎟ 9 pF
(termin. into 50 Ω)
100 V
3V
250 V
30 V
Active Voltage Probe
ESH2-Z2
0299.7210.52
Passive Voltage Probe
ESH2-Z3
0299.7810.54
Accessories supplied
Set of accessories
Probe tip
Recommended extras
BNC Adapter
Attenuator (for ESH2-Z3)
1)
0241.0613.02
0241.0913.02
URV-Z
ESH2Z31
0241.1110.02
0827.6513.02
Automatically considered in the display of Rohde&Schwarz test receivers and spectrum
analyzers.
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