Related Manuals for HT COMBI419
Summarization of Contents
Safety Precautions and Procedures
Preliminary Instructions
Guidance on initial setup, handling, and safety checks before operating the instrument.
During Use
Recommendations and instructions for safe and effective operation while the instrument is in use.
After Use
Procedures for powering off and storing the instrument after measurement operations are completed.
Overvoltage Categories - Definitions
Explanation of measurement categories (I, II, III, IV) as defined by IEC/EN61010-1.
General Description
Introduction
Overview of the instrument's capabilities and the models covered by the manual.
Instrument Operation
Details on the various tests and functions the instrument can perform.
Preparation for Use
Initial Checks
Recommended checks upon receiving the instrument to detect transport damage or discrepancies.
Instrument Power Supply
Information on battery type, life, replacement, and power management features.
Calibration
Details regarding the instrument's technical specifications and warranty period.
Operation Description
Instrument Description
Identification and description of the instrument's front, upper, and side parts.
Backlighting
Information on how to activate and the impact of display backlighting on battery life.
Keyboard Description
Explanation of the function of each key on the instrument's keyboard.
Display Description
Details on the graphic module resolution and the information displayed on the screen.
Initial Screen
Information displayed for a few seconds upon instrument startup.
Main Menu
AUTO + PWR
Accessing measurement functions listed between AUTO and PWR.
SET - Instrument Settings
Navigating and configuring instrument settings like language and auto power off.
Language
Procedure for selecting the desired language for the instrument interface.
Auto Power Off
Configuration options for the automatic power off feature based on inactivity.
Nominal Voltage
Setting the nominal voltage for calculations like prospective short-circuit current.
Frequency
Setting the mains frequency value used for measurements.
System
Selecting the type of electric power supply system (e.g., TT/TN, IT).
MEM
Accessing the memory management functions of the instrument.
Electrical System Test
AUTO
Automatic sequence test including earth resistance, RCD tripping time, and insulation resistance.
Description of Anomalous Results
Interpreting abnormal readings and error messages during the AUTO test sequence.
LOWOHM: Continuity Test of Earth Leads with 200mA
CAL
Procedure for compensating the resistance of the measurement cables.
AUTO
Continuity test mode with automatic polarity inversion and average value calculation.
R+
Continuity test mode with positive polarity and adjustable test duration.
CAL Mode
Detailed steps for performing the CAL mode to compensate cable resistance.
Description of Anomalous Results
Interpreting abnormal readings and error messages during LOWOHM tests.
ΜΩ: Measurement of the Insulation Resistance
MAN
Manual insulation resistance test mode with continuous or 2-second duration.
TMR
Timed insulation resistance test mode with adjustable measurement duration.
VNom
Setting the test voltage for insulation resistance measurements.
Lim
Setting the minimum insulation limit for test result evaluation.
Temp
Setting the test duration time in TMR measuring mode.
Description of Anomalous Results
Interpreting abnormal readings and error messages during insulation resistance tests.
RCD: Test on A-type and AC-type RCDs
AUTO
Automatic RCD test sequence for tripping time and current at various multiples.
x1/2
RCD test with leakage current at half the nominal current.
x1
RCD test with leakage current at the nominal current.
x2
RCD test with leakage current at twice the nominal current.
x5
RCD test with leakage current at five times the nominal current.
RA
RCD test for contact voltage and total earth resistance without tripping.
UL
Setting the limit value for contact voltage in RCD tests.
AUTO mode
Detailed procedure for performing the automatic RCD test.
x1/2 mode
Detailed procedure for performing the RCD test at half nominal current.
RA mode
Procedure for measuring contact voltage and total earth resistance.
Description of Anomalous Results
Interpreting abnormal results and error messages during RCD tests.
LOOP: Measurement of Line/Loop Impedance
P-N
Measures phase-to-neutral impedance and calculates prospective short-circuit current.
P-P
Measures phase-to-phase impedance and calculates prospective short-circuit current.
P-PE
Measures fault loop impedance and calculates prospective fault current.
UL
Setting contact voltage limits for IT systems in P-PE mode.
P-N mode
Procedure for performing phase-to-neutral impedance measurements.
P-P mode
Procedure for performing phase-to-phase impedance measurements.
P-PE mode in IT systems
UL
Setting contact voltage limits for IT systems.
Description of Anomalous Results
Interpreting abnormal readings and error messages during P-PE mode tests.
RA 15mA: Measurement of the Total Earth Resistance Through the Socket-Outlet
Description of Anomalous Results
Interpreting abnormal readings and error messages during RA 15mA tests.
123: Phase Sequence Test
1T
Phase sequence test mode using one test lead.
2T
Phase sequence test mode using two test leads.
Description of Anomalous Results
Interpreting incorrect phase sequences or errors during the test.
Auxiliary Measurements
AUX: Real Time Measurement of the Environmental Parameters
Measure environmental parameters like air speed, humidity, temperature, Lux, and voltage.
dB mode
Measure acoustic pressure (SPL, Peak) and duration using the sound level probe.
AIR, RH, TMP °F, TMP °C, Lux mode
Measure environmental parameters using specific external transducers.
Description of Anomalous Results
Interpreting abnormal readings for environmental parameter measurements.
LEAK: Real Time Measurement of the Leakage Current Through an External Clamp
Description of Anomalous Results
Interpreting abnormal current readings higher than the selected full scale.
Mains Analysis
PWR: Real Time Measurement of the Mains Parameters
Measure mains voltage, current, harmonics, power, and power factor.
PAR
Mode for measuring electrical parameters like current, voltage, and power factor.
HRM V
Mode for measuring voltage harmonics.
HRM I
Mode for measuring current harmonics.
PAR mode
Detailed procedure for performing measurements in PAR mode.
HRM V ane HRM I mode
Detailed procedure for measuring voltage and current harmonics.
Memory
How to Save a Measure
Steps for saving measurement results, including parameter values.
Description of Anomalous Results
Handling scenarios like a full memory when attempting to save a measure.
Saved Data Management
Navigating, recalling, and deleting stored measurement data.
How to recall a measure
Procedure for displaying previously saved measurement data.
How to delete the last measure or all of them
Instructions for deleting single or all saved measurement records.
Description of Anomalous Results
Handling cases where the memory is accessed but no data is saved.
Maintenance
General
General recommendations for using, storing, and protecting the instrument.
Battery Replacement
Step-by-step instructions for replacing the instrument's batteries.
Instrument Cleaning
Guidance on how to clean the instrument safely and effectively.
Specifications
Technical Features
Detailed technical specifications for various measurement functions.
Safety Specification
Instrument safety standards, technical documentations, and pollution level.
General
General safety specifications including overvoltage category and height of use.
Reference Standards for Verification Measurements
List of standards relevant to the instrument's verification measurements.
Service
Warranty Conditions
Terms and conditions regarding the instrument's warranty coverage.
Service
Procedures for contacting after-sales service and returning the instrument.
Practical Reports for Electrical Tests
Continuity Measurement on Protective Conductors
Purpose, installation parts, and allowable values for continuity testing.
Purpose of the Test
Checking the continuity of protective and equalizing potential conductors.
Installation Parts to be Checked
Identifying specific parts of the installation to be checked for continuity.
Allowable Values
Criteria for determining a positive outcome in continuity measurements.
Insulation Resistance Measurement
Purpose and procedure for measuring insulation resistance of an installation.
Purpose of the Test
Checking if the installation's insulation resistance meets standard requirements.
Check of the Circuit Separation
Testing separation between electrical circuits for safety.
Definitions
Defining SELV, PELV, and electrical separation systems for testing.
Purpose of the Test
Verifying insulation resistance compliance for separated circuits.
Installation Parts to be Checked
Specifying parts to check for SELV, PELV, and electrical separation tests.
Allowable Values
Criteria for positive test results in circuit separation checks.
Working Test of RCDs
Purpose of the Test
Checking RCD installation, adjustment, and feature maintenance over time.
Installation Parts to be Checked
Specifying that RCDs must be tested when installed.
Allowable Values
Reference table for RCD tripping times at different current multipliers.
Note
Notes regarding RCD testing, contact voltage, and earth resistance display.
Test of RCD Tripping Current
Purpose of the Test
Checking the real tripping current of general RCDs.
Installation Parts to be Checked
Guidance on testing RCDs with fixed differential current or when earth installation is absent.
Allowable Values
The tripping current shall range from ½ IdN to IdN.
Note
Notes on checking for significant leakage currents and performing tests.
Measurement of Short-Circuit Impedance
Purpose of the Test
Checking if protection device tripping power exceeds maximum fault current.
Installation Parts to be Checked
Test point selection for short-circuit impedance measurements.
Allowable Values
Formulas for calculating tripping power in three-phase and single-phase installations.
Fault Loop Impedance Measurement
Purpose of the Test
Understanding fault loop composition and checking protection coordination.
Installation Parts to be Checked
Specifying the systems (TN or IT without RCDs) where this test is necessary.
Allowable Values
The relation Zs ≤ Uo / Ia must be fulfilled.
Earth Resistance Measurement in TT Systems
Purpose of the Test
Checking RCD coordination with earth resistance values.
Installation Parts to be Checked
Checking the earth installation under working conditions.
Allowable Values
The measured earth resistance value must meet the relation RA < 50 / Ia.
Voltage and Current Harmonics
Theory
Explanation of how non-sine waves are represented by sums of sinusoids.
Limit Values for Harmonics
Harmonic voltage limits set by EN 50160 and THD requirements.
Presence of Harmonics: Causes
Identifying apparatus and non-linear loads that cause harmonic distortion.
Presence of Harmonics: Consequences
Discussing issues caused by harmonics like neutral wire overheating.
Power and Power Factor Definition
Note
Notes on reactive power, line power losses, and distorted power factor (dPF).
Conventions on Powers and Power Factors
Applying conventions for recognizing types of power and power factor.
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