Reliant EMC

LISN & Voltage Probes

Laplace Instruments LISNs
LINE IMPEDANCE STABILISATION NETWORKS


Laplace Instruments LISN16A1P  CISPR16 Single Phase 16 amp LISN

The full range of Laplace Instruments LISN's comprises of:
Commercial (to CISPR16), up to 16A, single phase
Commercial (to CISPR16), up to 100A, 2 and 4 line
Military (Def Stan 59-41) and Mil Spec 461 types
Automotive, to CISPR25 Voltage probe to CISPR16

Key Points
• LISNs with ratings up to 100A/line and up to 4 lines.
• Commercial versions fully compliant to CISPR16
• Def Stan and Mil Spec versions also available
• Voltage probe (PLIP) with inbuilt safety features for lines >100A
• Fully calibrated and complete with test lab certificate and cal. data

Features
All commercial LISNs include an artificial hand connection and a transient limiter. This adds a 30dB insertion loss. A 30dB pre-amplifier is included which can be connected in the RF output feed to return the insertion loss to 0dB. All bar the heavy current LISNs are constructed in a flanged aluminium enclosure that can be bolted directly down to a ground plane (as required by standards). The underside of the enclosure is left unpainted to ensure good conductivity with the plane.
The 16A and military/automotive LISNs have an RF output for each line, thus allowing parallel measurements of the emissions. This facilitates measurement of common mode and differential mode components of the emissions if required.
LISN MECHANICAL DATA - Size in mm
CASE
A
B
C
D
E
WIDTH
180
530
535
180
200
LENGTH
300
422
522
500
600
HEIGHT
80
310(6u)
445(9u)
100
185
 
SPECIFICATION FOR CISPR16 LISN - up to 32 amps
LISN16A1P
LISN32A1P
LISN32A3P
Cont.amps (per ph)
16 Amps
32 Amps
32 Amps
Input connection
2m flying lead
4mm socket
4mm socket
Output connections
Mains socket + 4mm socket
4mm socket
4mm socket
Power frequency
DC to 400 MHz
DC to 400MHz
DC to 400MHz
RF out selection
separate BNCs
Selector switch
Selector switch
Max voltage (Ref. to ground)
275v rms
275v rms
275v rms
Insertion loss, Pre-amp bypassed
30dB
30dB
30dB
Network
50Ω II 50μH
50Ω II 50μH
50Ω II 50μH
Impedance
To CISPR16, figure 7b, ±20%
To CISPR16, figure 7b, ±20%
To CISPR16, figure 7b, ±20%
Construction
Alloy case with base flanges
Modular instrument case
Modular instrument case
Pre-amp gain
30dB, ± 1.5dB
 
30dB, ± 1.5dB
 
30dB, ± 1.5dB
Pre-amp location
external
internal
internal
Frequency range
9KHz-30MHz
 
9KHz-30MHz
 
9KHz-30MHz
Noise figure
less than 5dB
less than 5dB
less than 5dB
Max signal level
+80dBμV
+80dBμV
+80dBμV
Saturation signal level
+120dBμV
+120dBμV
+120dBμV
Power
12V DC from included mains supply
12V DC from included mains supply
12V DC from included mains supply
 
MODEL
STANDARD
CURRENT RATING
(A)
PHASES
TRANSIENT LIMITER FITTED
SIZE
FREQUENCY RANGE
LISN16A1P
CISPR16
16
L, N
YES
A
150KHz - 30MHz
LISN32A1P
CISPR16
32
L, N
YES
B
150KHz - 30MHz
LISN63A1P
CISPR16
63
L, N
YES
B
150KHz - 30MHz
LISN100A1P
CISPR16
100
L, N
YES
B
150KHz - 30MHz
LISN32A3P
CISPR16
32
L1, L2, L3, N
YES
C
150KHz - 30MHz
LISN63A3P
CISPR16
63
L1, L2, L3, N
YES
C
150KHz - 30MHz
LISN100A3P
CISPR16
100
L1, L2, L3, N
YES
C
150KHz - 30MHz
LISNC25/
25A1P
CISPR25
25
1
NO
A
100KHz - 108MHz
LISNC25/
25A2P
CISPR25
25
2
NO
A
100KHz - 108MHz
LISNC25/100A
CISPR25
100
1
NO
D
100KHz - 108MHz
LISN59-41/32A2P
DEFSTAN59-41
32
2
NO
A
20Hz - 400MHz
LISN59-41/100A
DEFSTAM59-41
100
1
NO
D
20Hz - 400MHz
LISN461E/10A2P
MIL 461E
10
2
NO
E
10KHz - 10MHz
LISN461E/100A
MIL 461E
100
1
NO
E
10KHz - 10MHz

The Voltage Probe requirement is covered by our PLIP (Power Line Interference Probe). This fully meets the requirements of CISPR16, but has additional features:
• Fully galvanic isolation between input and output (>1kV), for the safety of operator and analyser!
• Shrouded safety clips for attachment to the line to be measured.
• Filtered frequency response matched to Band A and B.
• Current limiting on the output.
• Visual indication of high voltage input.

LISN is an optional extra for the following products:
1GHz EMC emissions Analyser
Pre-Selectors for EMC test
• Ancillaries.. conducted
CRS+

LISN & Voltage Probes appears in the following kits:
CLIENTS (optional for this kit)
RFG kit (optional for this kit)
RFC- conducted emissions kit
Filter Design System
ALECS

Associated Downloads

 

Request a Quote / Contact Us!

 

Laplace Instruments

Laplace Instruments product Line

Reliant EMC Product Lines