PMK PKT Series High Impedance Passive Cable Divider Instruction Manual

PMK PKT Series High Impedance Passive Cable Divider

Product Information

• Product Name: Hochohmiger Passiver Kabelteiler High Impedance Passive Cable Divider
• Manufacturer: PKT SERIE

Contact Information

• Tel: +49 (0) 6196 5927 – 930
• Fax: +49 (0) 6196 5927 – 939
• Website: www.pmk.de.
• Email: sales@pmk.de.

Product Usage Instructions

Safety Guidelines:

• Always follow the specified ratings.
• Do not use the product in explosive environments.

Package Contents

Electrical Specifications

Systembandbreite (-3 dB)| Anstiegszeit (10% – 90%)| Spannungskoeffizient (bei DC)| Compensation Range| Eingangskopplung des Messinstrumentes| Verschmutzungsgrad
---|---|---|---|---|---
10:1 500 MHz| 0.7 ns| 0.00025% / V| 7 pF – 25 pF| 1 M AC / DC| Messkategorie II
10:1 400 MHz| 0.9 ns| 0.00025% / V| 10 pF – 40 pF| 1 M AC / DC| Messkategorie II
10:1 280 MHz| 1.25 ns| 0.00025% / V| 10 pF – 40 pF| 1 M AC / DC| Messkategorie II

Mechanical Specifications

Warranty: This product comes with a 2-year warranty. Specifications not marked as guaranteed are typical.

IEC Measurement Categories

Definitions and Examples
No Measurement Category not in CAT II, III or IV

• Definition: Many types of test and measuring circuits are not intended not in CAT II, III or IV to be directly connected to the mains supply. Some of these measuring circuits are intended for very low energy applications, but others of these measuring circuits may experience very high amounts of available energy because of high short-circuit currents  or high open-circuit voltages. There are no standard transient levelsdefined for these circuits. An analysis of the WORKING VOLTAGES, loop impedances, temporary overvoltages, and transient overvoltages in these circuits is necessary to determine the insulation requirements and short-circuit current requirements.
• Examples: Thermocouple measuring circuits, high-frequency measuring circuits, automotive testers, and testers used to characterize the mains installation before the installation is connected to the mains supply.

Measurement Category II

• Definition: MEASUREMENT CATEGORY II is applicable to test and measuring circuits connected directly to utilization points (socket outlets and similar points) of the low-voltage mains installation.
• Examples: Measurements on MAINS CIRCUITS of household appliances, portable tools and similar equipment, and on the consumer side only of socket-outlets in the fixed installation.

Measurement Category III CAT III

• Definition: MEASUREMENT CATEGORY III is applicable to test and measuring circuits connected to the distribution part of the building’s low-voltage mains installation. To avoid risks caused by the HAZARDS arising from these higher short-circuit currents, additional insulation and other provisions are required.
• Examples: Measurements on distribution boards (including secondary meters), photovoltaic panels, circuitbreakers, wiring, including cables, busbars, junction boxes, switches, socket-outlets in the fixed installation, and equipment for industrial use and some other equipment such as stationary motors with permanent connection to the fixed installation.

Measurement Category IV CAT IV

• Definition: MEASUREMENT CATEGORY IV is applicable to test and measuring circuits connected at the source of the building’s low-voltage mains installation. Due to these high short-circuit currents which can be followed  by a high energy level, measurements made within these locations areextremely dangerous. Great precautions shall be made to avoid any chance of a short circuit.
• Examples: Measurements on devices installed before the main fuse or circuit breaker in the building installation

IEC Pollution Degrees

Definitions and Examples:

Overview of measurement categories according to IEC 61010-031  O = No Measurement Category (Other circuits that are not directly connected to mains)

• Pollution Degree 1: No POLLUTION or only dry, non conductive POLLUTION.
  • NOTE: The POLLUTION has no influence.
• Pollution Degree 2: Only- non conductive POLLUTION. Occasionally, however, a temporary conductivity caused by condensation must be accepted.
• Pollution Degree 3: Conductive POLLUTION occurs or dry, non-conductive POLLUTION occurs which becomes conductive due to condensation which is to be expected.

IEC Safety Symbols

The following symbols may appear on the product or in this instruction manual:

• Caution, risk of danger. Refer to manual.
• Caution, risk of electric shock.
• Earth (ground) TERMINAL.

Safety Information

• Prevent personal injury, fire and product damage.
  To avoid personal injury and to prevent fire or damage to this product or products connected to it, review and comply with the following safety precautions. Be aware that if you use this probe assembly in a manner not specified the protection this product provides may be impaired. Only qualified personnel should use this probe assembly.

• Use only grounded instruments.
  Do not connect the probe ground lead to a potential other than earth ground. Always make sure the probe and the measurement instrument are grounded properly.

• Connect and disconnect properly.
  Connect the probe output to the measurement instrument before connecting the probe to the circuit under test. Disconnect the probe input from the circuit under test before disconnecting the probe from the measurement instrument.

• Observe probe and probe accessory ratings.
  Do not apply any electrical potential to the probe input which exceeds the maximum ratings of the probe or the accessories connected to it. In a combination always the lower rating / measurement category applies to both probe and accessories connected to it. Make sure to comply with the voltage versus frequency derating curve on page 28.

• Keep away from hazardous live circuits.
  Avoid open circuitry. Do not touch connections or components when power is present.

• Do not operate with suspected failures.
  Refer to qualified service personnel.

• Indoor use only.
  Do not operate in wet or damp environment. Keep the product dry and clean. Do not operate the product in an explosive atmosphere.

Cable Divider Accessories

Scope of Delivery

Accessories delivered with each probe are highlighted in the graphical overview. The accessories provided with the cable divider have been safety tested. Do not use any other accessories than those “originally” provided.

Additional silicon insulation of probe cable

PKT SERIES

Table 1 of 2| PKT 512A / 512A-RO| PKT 512AS / 512AS-RO| PKT 520A / 520A-RO| PKT 520AS

/ 520AS-RO

| PKT 530A / 530A-RO
---|---|---|---|---|---
Order number without Read-Out| 858-512-A00| 858-512-AS0| 858-520-A00| 858-520-AS0| 858-530-A00
Order number with Read-Out| 858-512-A01| 858-512-AS1| 858-520-A01| 858-520-AS1| 858-530-A01
Electrical Specifications
Attenuation Ratio (± 2 % at DC) (¹)| 10:1| 10:1| 10:1| 10:1| 10:1
System Bandwidth (-3 dB)| 500 MHz| 500 MHz| 400 MHz| 400 MHz| 280 MHz
Rise time (10 % – 90 %)| 0.7 ns| 0.7 ns| 0.9 ns| 0.9 ns| 1.25 ns
Voltage Coefficient

(at DC)

| 0.00025 % / V| 0.00025 % / V| 0.00025 % / V| 0.00025 % / V| 0.00025 % / V
Input Resistance (System) (± 1 %)| 10 MΩ| 10 MΩ| 10 MΩ| 10 MΩ| 10 MΩ
Input Capacitance (System)| 10 pF| 10 pF| 9.5 pF| 9.5 pF| 16 pF
Compensation Range| 7 pF – 25 pF| 7 pF – 25 pF| 10 pF – 40 pF| 10 pF – 40 pF| 10 pF – 40 pF
Input Coupling of the Measuring Instrument| 1 MΩ

AC / DC

| 1 MΩ

AC / DC

| 1 MΩ

AC / DC

| 1 MΩ

AC / DC

| 1 MΩ

AC / DC

Maximum Rated Input Voltages, CAT II (²)
Pollution Degree| 2| 2| 2| 2| 2
Measurement Category II| 300 V CAT II| 300 V CAT II| 300 V CAT II| 300 V CAT II| 300 V CAT II
Maximum Rated Input Voltages, No Measurement Category, not in CAT II, III, IV (²)
Pollution Degree| 2| 2| 2| 2| 2
No Measurement Category (²)| 400 V /

1650 V peak

| 400 V /

1650 V peak

| 400 V /

1650 V peak

| 400 V /

1650 V peak

| 400 V /

1650 V peak

Maximum Pulse Rating, No Measurement Category, not in CAT II, III, IV (²)

Upulse(³)

| | | |
Mechanical Specifications
Weight (Probe only)| 58 g| 58 g| 70 g| 70 g| 95 g
Cable Length| 1.2 m| 1.2 m| 2 m| 2 m| 3 m
Connection to Signal| BNC| BNC| BNC| BNC| BNC
Additional silicon insulation of probe cable (see on page 19)| | •| | •|
Tabele 2 of 2| PKT 530AS

/ 530AS-RO

| PKT 920A / 920A-RO| PKT 920AS

/ 920AS-RO

| PKT 930A / 930A-RO| PKT 930AS 930AS-RO
---|---|---|---|---|---
Order number without Read-Out| 858-530-AS0| 858-920-A00| 858-920-AS0| 858-930-A00| 858-930-AS0
Order number with Read-Out| 858-530-AS1| 858-920-A02| 858-920-AS1| 858-930-A02| 858-930-AS1
Electrical Specifications
Attenuation Ratio (± 2 % at DC) (¹)| 10:1| 100:1| 100:1| 100:1| 100:1
System Bandwidth (-3 dB)| 280 MHz| 350 MHz| 350 MHz| 300 MHz| 300 MHz
Rise time (10 % – 90 %)| 1.25 ns| 1 ns| 1 ns| 1.2 ns| 1.2 ns
Voltage Coefficient

(at DC)

| 0.00025 % / V| 0.00025 % / V| 0.00025 % / V| 0.00025 % / V| 0.00025 % / V
Input Resistance (System) (± 1 %)| 10 MΩ| 50 MΩ| 50 MΩ| 50 MΩ| 50 MΩ
Input Capacitance (System)| 16 pF| 6 pF| 6 pF| 6 pF| 6 pF
Compensation Range| 10 pF – 40 pF| 10 pF – 40 pF| 10 pF – 40 pF| 10 pF – 40 pF| 10 pF – 40 pF
Input Coupling of the Measuring Instrument| 1 MΩ

AC / DC

| 1 MΩ

AC / DC

| 1 MΩ

AC / DC

| 1 MΩ

AC / DC

| 1 MΩ

AC / DC

Maximum Rated Input Voltages, CAT II (²)
Pollution Degree| 2| 2| 2| 2| 2
Measurement Category II| 300 V CAT II| 300 V CAT II| 300 V CAT II| 300 V CAT II| 300 V CAT II
Maximum Rated Input Voltages, No Measurement Category, not in CAT II, III, IV (²)
Pollution Degree| 2| 2| 2| 2| 2
No Measurement Category (²)| 400 V /

1650 V peak

| 400 V /

1650 V peak

| 400 V /

1650 V peak

| 400 V /

1650 V peak

| 400 V /

1650 V peak

Maximum Pulse Rating, No Measurement Category, not in CAT II, III, IV (²)

Upuls(³)

| | | |
Mechanical Specifications
Weight (Probe only)| 95 g| 75 g| 75 g| 75 g| 75 g
Cable Length| 3 m| 2 m| 2 m| 3 m| 3 m
Connection to Signal| BNC| BNC| BNC| BNC| BNC
Additional silicon insulation of probe cable (see on page 19)| •| | •| | •

1. Connected to oscilloscope with an input impedance of 1 MΩ ± 1 %.
2. As defined in IEC 61010-031. See definitions explained on page 18 and 19.
3. No overshoot permitted.

Environmental Specifications

Altitude

| operating| up to 2000 m
---|---|---
non-operating| up to 15000 m
Temperature Range| operating| 0 °C to +50 °C
non-operating| -40 °C to +71 °C
Maximum Relative Humidity| operating| 80 % relative humidity for temperatures up to

+31 °C, decreasing linearly to 40 % at +50 °C

non-operating| 95 % relative humidity for temperatures up to +40 °C

1. As defined in IEC 61010-031. See definitions explained on page 16 and 17.

Typical Voltage Derating

Note that the maximum input voltage rating of the probe decreases as the frequency of the applied signal increases. Note that this cable divider is intended to be used for small signal applications only. It is not intended to be used in CAT II, III, IV measurement environments. See explanations of IEC measurement categories on pages 20 and 21. (¹)

Typical Input Impedance

Note that the input impedance of the probe decreases as the frequency of the applied signal increases. Note that this cable divider is intended to be used for small signal applications only. It is not intended to be used in CAT II, III, IV measurement environments. See explanations of IEC measurement categories on pages 20 and 21. (¹)

Adjustment Procedures

The probe can be adjusted for low-frequency (LF) compensation and for high- frequency (HF) compensation. Factory calibration is possible at any time on request. The trimmers are sensitive components. Too much mechanical pressure during adjustment might damage the trimmers.
LF Compensation
When the probe is connected to the oscilloscope input the first time probes cable capacitance needs to be matched to the oscilloscope input capacitance. This matching assures good amplitude accuracy from DC to the probes bandwidth. A poorly compensated probe clearly influences the overall system performance (probe + scope) and causes measurement errors resulting in inaccurate readings and distorted waveforms. LF compensation is performed by connecting the probe to the CAL – output on the oscilloscope front panel and adjusting the LF compensation trimmer to optimum square wave response. For clarification see below figures.

HF Compensation
Overshoot doesn´t necessarily need to be adjusted when connecting the probe to your oscilloscope for the first time. We recommend to use the following equipment for proper HF compensation: Rectangular waveform generator with a rise time faster than 700 ps, 50 Ω feed through and probe BNC adapter. If you do not have the appropriate equipment we are pleased to help you. Simply send a message to our service department. HF adjustment is performed by connecting the probe to the rectangular wave generator.

Adjust trimmers (T1 and T2) for optimum square wave response.

Manufacturer

• PMK Mess- und Kommunikationstechnik GmbH
• Koenigsteinerstrasse 98
• 65812 Bad Soden am Taunus, Germany
• Phone: +49 (0) 6196 5927 – 930
• Fax: +49 (0) 6196 5927 – 939
• Internet: www.pmk.de.
• E-Mail: sales@pmk.de.

Warranty
PMK warrants this product for normal use and operation within specifications for a period of two years from date of shipment and will repair or replace any defective product which was not damaged by negligence, misuse, improper installation, accident or unauthorized repair or modification by the buyer. This warranty is applicable only to defects due to material or workmanship. PMK disclaim any other implied warranties of merchantability or fitness for a particular purpose. PMK will not be liable for any indirect, special, incidental, or consequential damages (including damages for loss of profits, loss of business, loss of use or data, interruption of business and the like), even if PMK has been advised of the possibility of such damages arising from any defect or error in this manual or product.

Declaration of Conformity
PMK declares the conformity of this product with the actual required safety standards in accordance with the Low Voltage Directive (LVD) 2014/35/EU:

CEI/IEC 61010-031:2015

• Safety requirements for electrical equipment for measurement, control and laboratory use
• Part 031: Safety requirements for hand-held probe assemblies for electrical measurement and test

WEEE/ RoHS Directives
This electronic product is classified within the WEEE/ RoHS category list as monitoring and control equipment (category 9) and is compliant to the following EC Directives.
EC Directives:

• WEEE Directive 2012/19/EU – Waste Electrical and Electronic Equipment
• RoHS Directive 2011/65/EU – Restriction of the use of certain Hazardous Substances in Electrical and Electronic Equipment

Copyright © 2022 PMK – All rights reserved. Information in this publication supersedes that in all previously published material. Specifications are subject to change without notice.

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