Safety and Regulatory Information
The probe cable is a sensitive part of the probe
Keysight N2140A and N2142A
and, therefore, you should be careful not to
damage it through excessive bending or pulling.
CSA is the Canadian certification mark to
Avoid any mechanical shocks to the product to
demonstrate compliance with the Safety requirements.
Passive Probes
guarantee accurate performance and protection.
Do not use the probe assembly if the red wear
The CE mark is a registered trademark of the
Quick Start Guide
indicator in the cable has become visible.
European Community. ISM GRP 1-A denotes the
instrument is an Industrial Scientific and Medical
Group 1 Class A product. ICES/NMB-001
Some of the probe tips / accessories are very
indicates product compliance with the Canadian
sharp. You should handle these with care to
Interference-Causing Equipment Standard.
avoid personal injury.
This symbol indicates the Environmental Protection
Use Period (EPUP) for the products toxic
Use only Grounded instruments. Do not connect
2
the probes ground lead to a potential other than substances for the China RoHS requirements.
3
earth ground. Always make sure that the probe
IEC Measurement category II is for measurements
and oscilloscope are grounded properly. CAT II
1
performed on circuits directly connected to the
low voltage installation. Example. Household 4
Connect the probe to the oscilloscope and
appliances portable tools, and similar equipment.
connect the ground lead to earth ground before
connecting the probe to the circuit under test.
5
6
Disconnect the probe input and the probe ground
lead from the circuit under test before
7
disconnecting the probe from the oscilloscope.
Indoor Use Only. Do not operate in wet / damp
environments. Keep product surfaces dry and
clean.
Do not operate in an explosive environment.
Keysight Technologies 2017
If your probe requires cleaning, disconnect
N2140-92001, June 2017,
it from the instrument and clean it with
Printed in USA
mild detergent and water. Make sure the
probe is completely dry before connecting
it to the instrument.
*N2140-92001*The Keysight N2140A 200 MHz and N2142A 75 MHz passive These probes have been designed and calibrated for use
Table 2 - Electrical Characteristics
probes are high impedance probes with switchable attenuation with instruments having an input impedance of 1M
ratio (1:1 and 10:1). These are compatible with the Keysight paralleled by 20pF. However, these may be recalibrated for
Value
Characteristic
InfiniiVision EDUX1002A/G and DSOX1102A/G digital storage use with instruments having an input capacitance of
Attenuation Ratio 1:1 / 10:1
oscilloscopes or similar oscilloscopes with 1 Mohm BNC input. 15 to 30pF.
Input Capacitance
1:1 - 100pf 10:1 - 15pf
Adjusting Probes for Low-Frequency (LF) Compensation
Compensation range
The BNC connector of these probes has a
15pf - 30pf
The probe should be adjusted for LF compensation when it is
(when terminated
pin hole without a pin. This is as per the
into 1 Mohm)
connected to an oscilloscope input for the first time. LF
design and does not indicate any damage
compensation matches the probe cable capacitance to the
or fault in the probe.
Input Resistance 1:1 - 1M 10:1 - 10M
oscilloscope input capacitance. This matching assures good
Pin hole
amplitude accuracy from DC to the upper bandwidth limit Maximum Input
1:1 - 150V rms CAT II
without
frequencies. A poorly compensated probe clearly influences
Voltage
10:1 - 300V rms CAT II
BNC
a pin
the overall system performance (probe and oscilloscope)
Connector
Current Rating
and introduces measurement errors resulting in inaccurate 0.15mA
(DC, 1:1, & maximum voltage)
readings and distorted waveforms.
For optimal probe compensation:
For N2142A
For N2140A
Bandwidth
Table 1 - Probe and its Supplied Accessories - Allow the oscilloscope (with the probe connected) to warm
1:1 - 6 MHz 1:1 - 6 MHz
up for at least 30 minutes.
10:1 - 75 MHz
10:1 - 200 MHz
Quantity
- Repeat the compensation steps if the ambient temperature
ID Part
in the area in which the oscilloscope is being used changes
For N2140A For N2142A
Table 3 - Physical & Environmental Characteristics
by more than 5 degrees C.
Passive probe 2 2
- Do NOT push down on the adjustment screw when engaging
Value
Characteristic
or turning this screw.
Ground Spring -
2
To perform LF compensation:
Probe Body 95mm
Ground Lead
2 2
1 Connect the probe to the oscilloscopes front-panel
Cable Length 1200mm
calibration output (a square wave label is usually seen near
Adjustment Tool
1 1
this output).
Weight
55g
Hook Tip 2 2
2 Use the supplied adjustment tool to adjust the LF
Temperature -10 C to +55 C (Operating)
Protective Cap 1 1 compensation to an optimum square wave response as
-40 C to +70 C (Non-operating)
shown in the figure below.
Channel
2 sets of each color with
Altitude 3,000 m (9,842 ft) (Operating)
Identification rings
two rings in each set
12200 m (40,026 ft) (Non-operating)
Humidity 5% to 95% RH up to 30 C (Operating)
These accessories are provided in the N2141A kit for the
5% to 65% RH above 30 C up to 55 C
N2140A probe and the N2143A kit for the N2142A probe.
(Non-operating)
Undercompensated Overcompensated Optimum