HT XL421 3 Phase Current Data Logger User Manual

Safety Precautions and Procedures
Ensure compliance with safety standards and follow the prescribed procedures to avoid damage to the instrument or risk to personal safety. De-energize the plant under test before connecting the instrument.

General Description
The XL421 – XL422 is a versatile instrument designed for use in Single Phase and Three Phase systems. It offers various functions to facilitate accurate measurements.

Instrument Description
The instrument features a keyboard for inputting commands and settings.

Initial Settings
Set the date, time, and measuring interval before using the instrument for precise data collection.

Operative Instructions

Using the instrument in a Single Phase system: Follow the specific steps outlined in the manual for accurate measurements.

Using the instrument in a Three Phase system: Refer to the instructions provided for proper setup and usage in a Three Phase system.

LED Messages Description
Understand the LED messages displayed by the instrument for effective troubleshooting and operation.

Connection of Instrument to PC
For data transfer and analysis, connect the instrument to a PC following the recommended procedures.

Maintenance
Regular maintenance is essential to ensure the longevity and accuracy of the instrument. Refer to the manual for maintenance guidelines.

Service

Warranty Conditions: Familiarize yourself with the warranty terms provided for the instrument.

After-sale Service: Contact authorized service centers for any post-purchase assistance or repairs.

Frequently Asked Questions (FAQ)

Q: What should I do if I encounter a danger high voltage situation?
A: In case of high voltage risk, immediately de-energize the plant under test and follow safety protocols.
Q: How often should I perform maintenance on the instrument?
A: Regular maintenance as per the manual guidelines is recommended to ensure optimal performance and longevity of the instrument.

SAFETY PRECAUTIONS AND PROCEDURES

This instrument has been designed in compliance with IEC/EN61010-1 directive. For your own safety and to avoid damaging the instrument we suggest you follow the procedures hereby prescribed and to read carefully all the notes preceded by the symbol .

CAUTION
Should you fail to keep to the prescribed instructions you could damage the instrument and/or its components or endanger your safety.

Take extreme care of the following conditions while taking measurements:

Do not perform any measurement in humid or wet environments.

Do not use the instrument in presence of explosive gas (material), combustible gas (material), steam or dust.
Do not touch the circuit under test if no measurement is being taken.

Do not use the instrument if it seems to be malfunctioning (i.e. if you notice deformations, breaks, leakage of substances and so on).

The herewith symbols are used:

Caution: refer to the instruction manual; an improper use may damage the instrument or its components
Danger high voltage: risk of electrical shocks

De-energize the plant under test before connecting the instrument

Double insulated instrument

AC voltage and current

PRELIMINARY INSTRUCTIONS

It can be used for CURRENT measurements up to 2500A on installations with overvoltage category CAT III 1000V∼ to ground or CAT IV 600V∼ to ground.
Please use the standard safety precautions aimed at protection against dangerous electric currents and protect the instrument against incorrect operations
Do not test circuits exceeding the current and voltage limits.
De-energize the plant under test before connecting the instrument. Take all the safety precautions before taking actions on the plant.
It can be used for CURRENT measurements up to 2500A on installations with overvoltage category CAT III 1000V∼ to ground or CAT IV 600V∼ to ground.
Please use the standard safety precautions aimed at protection against dangerous electric currents and protect the instrument against incorrect operations
Do not test circuits exceeding the current and voltage limits.
De-energize the plant under test before connecting the instrument. Take all the safety precautions before taking actions on the plant.

DURING USE
Carefully read the following recommendations and instructions:

CAUTION
Non compliance with warnings and/or instructions may cause damage to the tester or its components or injure the operator.

During a current measurement keep the clamp as far as possible from cables not involved in measurement.
During a current measurement keep the cable under test in the very middle of the jaws.

AFTER USE

If you expect not to use the instrument for a long period of time remove the batteries and strictly follow the indications at ¤ 9.2.

MEASUREMENT CATEGORIES – DEFINITIONS
The IEC/EN61010-1 guideline (Safety requirements for electrical equipment for measurement, control and laboratory use, Part 1: General requirements) defines what a measurement category (usually called Òovervoltage categoryÓ) is. At ¤ 6.7.4: Measuring circuits it says:

(OMISSIS)
Circuits are divided into the following measurement categories:

Measurement category IV is for measurements performed at the source of low voltage installations
Examples are electricity instruments and measurements on primary overcurrent protection devices and ripple control units.

Measurement category III is for measurements performed in the building installation. Examples are measurements on distribution boards, circuit breakers, wiring, including cables, bus-bars, junction boxes, switches, socket-outlets in the fixed installation, and equipment for industrial use and some other equipment, for example, stationary motors with permanent connection to fixed installation.
Measurement category II is for measurements performed on circuits directly connected to the low voltage installation Examples are measurements on household appliances, portable tools and similar equipment.
Measurement category I is for measurements performed on circuits not directly connected to MAINS

Examples are measurements on circuits not derived from MAINS, and specially protected (internal) MAINS-derived circuits. In the latter case, transient stresses are variable; for that reason, the norm requires that the transient withstand capability of the equipment is made known to the user.

GENERAL DESCRIPTION

INTRODUCTION
The instrument was designed to grant the user the utmost safety conditions thanks to a new concept assuring double insulation and overvoltage CAT III 1000V∼ to ground or CAT IV 600V∼ to ground.

FUNCTIONS
This manual is referred to two models: XL421 and XL422. XL421 can recording a single Current in single phase or three phase plant. XL422 can recording up to 3 Currents simultaneously in single phase or three phase plant.
Where not expressly indicated the characteristics are common for both models. The instrument can monitoring a plant for a long time thanks to a sophisticated memory-managing algorithm. More exactly, the instrument uses the following sampling periods:

Measuring Interval	XL421 – Autonomy (days)	XL422 – Autonomy
1s	5	1.5
6s	34	8
30s	170	42
1m n	364 (*)	91
5m n	1820 (*)	455 (*)

(*) Depending on batteries autonomy

The instrument starts each recording using the Measuring Interval set through PC management software (see ¤ 8). Just before the event of full memory, the instrument applies the successive measuring Interval to all the memory, thus getting more free memory locations. The instrument continues the data storing according to the new Measuring Interval.

PREPARATION FOR USE

PRELIMINARY CHECKS
This instrument has been checked mechanically and electrically before shipment. All precautions have been taken to assure that the instrument reaches you in perfect condition. However, it is advisable to carry out a rapid check in order to detect any possible damage, which might have occurred in transit. Check the accessories contained in the packaging to make sure they are the same as reported in ¤ 11.

POWER SUPPLY
The instrument is powered by 2×1.5V type AA LR06 alkaline batteries. For battery fitting operation procedure please see ¤ 9.2.

CAUTION

The instrument, after fitted batteries, is always continuously ON also if STATUS and ALARM LED are OFF. Pressing of START/STOP key activate or disable recordings only.

During a recording the blinking ALARM LED every 3 seconds means a low battery status.

STORAGE
In order to guarantee the accuracy of the measurements, after a period of storage in extreme environmental conditions wait for the instrument to stabilize to within the listed operating conditions (see ¤ 10.2.1).

INSTRUMENT DESCRIPTION

CAPTION:

Flexible head

ÒSTATUS” LED
“ALARM” LED
RS232 port

“START/STOP” key
Press here to open the head

KEYBOARD
LED ÒSTATUSÓ blinks every time the START/STOP key is pressed.

INITIAL SETTINGS

DATE, TIME AND MEASURING INTERVAL
It s possible to set measuring interval as well as date and time by using the management software. This program allows to:

Set the Measuring Interval.
Control data and time of the instrumentos internal clock.

Set instrument date and time.
Check battery status.

How to operate:

Connect the instrument to PC COM using included serial cable.
Run Top View software and open the ÒPC-Instrument Connection section
Perform the detection of the instrument by using the Find the instrument or Autoset keys

Select the Configure the instrument command and press the Next key in order to set date/time in the instrument and the measurement interval in the Integrated Period field selecting values 1s, 6s, 30s, 1min or 5min
Confirm with Send command

CAUTION
The instrument could keep the data stored even without batteries. The set date and time don t get lost provided that the battery replacement takes less than 2 minutes.

OPERATIVE INSTRUCTIONS

USING THE INSTRUMENT IN A SINGLE PHASE SYSTEM

CAUTION
The measurement category is CAT III 1000V∼ to ground or CAT IV 600V∼ to ground. Do not attempt to take any voltage measurements exceeding the limits indicated in this manual. Exceeding the limits could cause electrical shock or damage to the instrument.

CAUTION
If possible de-energize the plant under test before connecting the instrument. Take all the safety precautions before taking actions on the

De-energize the plant under test before connecting the instrument.
Open the flexible head by pressing on expected points (see Fig. 1).
Clamp the cable under measurement with the head and close it.

To increase the reading accuracy the clamped cable must be in the middle of the head.
Re-energize the plant under test.
How to start a Recording:
- If no recording was performed or if the recording data was already downloaded to a PC, pressing and keeping the START/STOP key for 3 seconds. The STATUS LED will be lighting for the same time, than will be stable lighting for 1 second and the instrument will start the recording
- If the recording data was not already downloaded to a PC but the operator wants to overwrite these data, pressing and keeping the START/STOP key for 6 seconds. The STATUS LED will be quickly blinking during the key pressing for the same time, than the LED will be stable lighting for 1 second and the instrument will start the recording. The old recording will be deleted and overwritten by the new one. The instrument will wait for the next minute beginning (second=00) and the STATUS LED is double blinking. After that the recording starts and the STATUS LED blinks every 3 seconds. The instrument is storing the data.
During a Recording:
- A STATUS LED 3 seconds blinking meaning that the recording is active and the instrument is storing the data.
- An ALARM LED 3 seconds blinking means that the batteries are low. During a recording any RS232 communication is possible.
- During Recording operations RS-232 serial communications to PC is not possible.

Stop a Recording:
- To stop a Recording pressing START/STOP key and keep it pressed for 3 seconds. The STATUS LED will quickly blinks three times and the instrument will stop the recording, then stop blinking.

For more details about the blinks of STATUS and ALARM LED meaning, please refer to the ¤ 7.

USING THE INSTRUMENT IN A THREE PHASE SYSTEM

The measurement category is CAT III 1000V∼ to ground or CAT IV 600V∼ to ground. Do not attempt to take any voltage measurements exceeding the limits indicated in this manual. Exceeding the limits could cause electrical shock or damage to the instrument. CAUTION
If possible de-energize the plant under test before connecting the instrument. Take all the safety precautions before taking actions on the

De-energize the plant under test before connecting the instrument.

Open the flexible heads by pressing on expected points (see Fig. 1).
Clamp the cables under measurement with the heads and close it.
To increase the reading accuracy the clamped cable must be in the middle of the head.

Re-energize the plant under test.
How to start a Recording:
- If no recording was performed or if the recording data was already downloaded to a PC, pressing and keeping the START/STOP key for 3 seconds. The STATUS LED will be lighting for the same time, than will be stable lighting for 1 second and the instrument will start the recording
- If the recording data was not already downloaded to a PC but the operator wants to overwrite these data, pressing and keeping the START/STOP key for 6 seconds. The STATUS LED will be quickly blinking during the key pressing for the same time, than the LED will be stable lighting for 1 second and the instrument will start the recording. The old recording will be deleted and overwritten by the new one. The instrument will wait for the next minute beginning (second=00) and the STATUS LED is double blinking. After that the recording starts and the STATUS LED blinks every 3 seconds. The instrument is storing the data.
During a Recording:
- A STATUS LED 3 seconds blinking meaning that the recording is active and the instrument is storing the data.
- An ALARM LED 3 seconds blinking means that the batteries are low. During a recording any RS232 communication is possible.
- During Recording operations RS-232 serial communications to PC is not possible.
Stop a Recording:
- To stop a Recording pressing START/STOP key and keep it pressed for 3 seconds. The STATUS LED will quickly blinks three times and the instrument will stop the recording, then stop blinking.

For more details about the blinks of STATUS and ALARM LED meaning, please refer to the ¤ 7.

LED MESSAGES DESCRIPTION

For the STATUS and ALARM LEDs messages please refer to the following table:

LED	START/STOP Key	Light	Description
STATUS	Kept pressed 3 seconds at least	On for 1 second	Recording process correctly started. The previous recorded data was transferred to a PC
STATUS	Kept pressed 6 seconds at least	6 times blinking after 1 second on	Recording process correctly started. The previous recorded data was not transferred to a PC and were lost
STATUS	Not pressed	2 times blinking every 3 seconds	Waiting for the next minute (seconds=00)
STATUS	Not pressed	1 time blinking every 3 seconds	Recording in progress
STATUS	Pressed	3 times blinking	The recording process was stopped
ALARM	Not relevant	1 time blinkingevery 3 seconds	Low batteries. Stop the recording, transfer the data to a PC and replace batteries

CONNECTION OF INSTRUMENT TO PC

The connection of the instrument to a PC is possible through a serial cable supplied with the instrument. To download data to the PC (after installation of management software) keep to the below procedure:

Connect the serial cable to the instrument serial port and to a RS232 COM port of the PC.
Run Top View software and open the ÒPC-Instrument Connection section

Perform the detection of the instrument by using the Find the instrument or Autoset keys
Select the Download data command and press the Next key
CAUTION
During Recording operations RS-232 serial communications to PC is not possible.
Select the recording and click on Download key to start download procedure. A dialogue box displays the recording stored in the instruments memory. By choosing the Download command the data transfer procedure will start.

At the end of the download the Recording analysis section will automatically start.

For more details see the HELP on line of Top View software

MAINTENANCE

GENERAL INFORMATION
Whether in use or in storage, please do not exceed the specifications to avoid any possible damage or danger during use. Do not place this instrument in high temperature and/or humidity or expose to direct sunlight. For long term storing, remove the batteries to avoid leakage of battery fluid that can damage the internal components.

BATTERY REPLACEMENT
A blinking of ALARM LED for 3 seconds means that the batteries are low. Stop the recording and replace the batteries with a new set. The management software allows the operator to verify the batteriesÕ status.

CAUTION
The instrument could keep the data stored even without batteries. The set date and time don t get lost provided that the battery replacement takes less than 2 minutes.

CAUTION
Only experts and trained technicians should perform this operation. Remove the flexible head from the conductor under test before replacing the batteries.

Stop the recording (if necessary), remove the flexible heads from the conductors under test and transfer the stored data to a PC.
Remove the covers on the bottom side of the instrument using a screwdriver in the proper positions (1) and unscrew the 4 fixing screws (see Fig. 4).
Open the box and unscrew the covers fixing screw of the battery housing.

Replace the batteries with a new set of the same type (see ¤ 10.1.2). Close the battery housing with the screw, reinsert the screws, screw them and reinsert the plastic covers. Do not throw flat batteries in the environment after use.

CLEANING
To clean the instrument, use a soft dry cloth. Never use a wet cloth, solvents or water, etc.

END OF LIFE

CAUTION: this symbol indicates that equipment and its accessories shall be subject to a separate collection and correct disposal.

TECHNICAL SPECIFICATIONS

CHARACTERISTICS
Accuracy is calculated as ± [%rdg + (dgt*resolution)] referred to 23¡C ± 5¡C, <60%RH
AC TRMS CURRENT MEASUREMENT

Range	Resolution	Accuracy
2 + 2500A	1A	(2%rdg +2 d g t)

Additional error due to not centering:

Crest Factor max:
Frequency (Hz):
Conversion mode:

Bandwidth:
Sampling frequency:
Memory size:

Sampling period:
Serial port:

Reference guidelines

Safety:
EMC:
Insulation:
Pollution level:
Max height of use:
Measurement category:

General data

Mechanical characteristics Dimensions (L x W x H):
Max diameter cable clamped:
Head length:
Weight (including battery):
Protection index:
Power supply
Battery type:
Battery life:

ENVIRONMENTAL CONDITIONS

Climatic conditions Reference temperature:

Operating temperature:
Operating humidity:
Storage temperature:
Storage humidity:
2% reading 3
50±6%, 60±6%
TRMS
3200Hz
64 samples each 20ms
1Mbyte
1s, 6s, 30s, 1min, 5min
RS232
IEC/EN61010-1
IEC/EN61326-1
double insulation 2
2000m (6562ft)
CAT III 1000V, CAT IV 600V to ground
120 x 80 x 43mm (5 x 3 x 2in) 174mm (7in)
600mm (24in)
about 0.5kg (10lv)
IP65 (RS232 connector closed)
2×1.5V AA LR06 alkaline batteries 6 months (with charged batteries)
23¡C ± 5¡C (73 ± 41¡F)
– 20¡C Ö 60¡C (-4¡ Ö 140¡F)
100%RH (RS232 connector closed)
– 20¡C Ö 60¡C (-4¡ Ö 140¡F)
100%RH (RS232 connector closed)

This instrument complies with the requirements of Low Voltage Directive 2014/35/EU (LVD) and of EMC Directive 2014/30/EU
This instrument complies with the requirements of 2011/65/EU (RoHS) directive and 2012/19/EU (WEEE) directive

ACCESSORIES

Standard accessories

Adhesive Velcro 50 x 70 cm VELCRO
Carrying bag BORSA2000
Management software + serial cable C2004 TOPVIEW2004
Batteries
User manual YAMUM0009HT0

Optional accessories

RS-232/USB adapter C2009

SERVICE

WARRANTY CONDITIONS
This equipment is guaranteed against any material fault or manufacturerÕs defect, in accordance with the general conditions of sale. During the warranty period (one year), faulty parts may be replaced, with the manufacturer reserving the right to decide either to repair or replace the product. In the event of returning the equipment to the after-sales service or to a regional branch, the outward transport is to the charge of the customer. The returning must be agreed in advance with the supplier or local distributor. A report indicating the reasons for returning and defects detected must accompany the instrument. The manufacturer will not be responsible for any damage against persons or things.
The warranty doesnÕt apply to the following cases:

Accessories and batteries (not covered by warranty).
Improper use of the equipment or combination of the instrument with incompatible equipment.
Damages caused by incorrect shipping procedures.
Damages caused by repair/service trials of unauthorized people.
Modifications to the equipment without explicit authorization of our Technical Dept.
Adaptation to a particular application not provided for by the definition of the equipment or by the user manual.

The contents of this manual may not be reproduced in any form whatsoever without our agreement.

Our products are patented. The logotypes are registered. We reserve the right to modify characteristics and prices as part of technological developments which might be required.

AFTER-SALE SERVICE
If the equipment doesnÕt work properly, before contacting our Service Dept. please test the battery condition and replace them whether necessary. If the problem persists check if your operating procedure agrees with the one described in this manual. In the event of returning the equipment to the after-sales service or to a regional branch, the outward transport is to the charge of the customer. The returning must be agreed in advance with the supplier or local distributor. A report indicating the reasons for returning and defects detected must accompany the instrument. The manufacturer will not be responsible for any damage against persons or things.

Documents / Resources

HT XL421 3 Phase Current Data Logger [pdf] User Manual
XL421, XL422, XL421 3 Phase Current Data Logger, XL421, 3 Phase Current Data Logger, Current Data Logger, Data Logger, Logger

References

User Manual

HT XL421 3 Phase Current Data Logger

Product Information

Product Usage Instructions