Huazheng HZ-5300 Manual de usuario

HZ-5300

Contact Resistance Tester

User Manual

Huazheng Electric Manufacturing (Baoding) Co., Ltd

Dear use r:

Thank you fo r choosing HZ -5300 Contact Re si st an ce Test er.

We hope that this instrum ent can mak e your wo rk easier and mo re

enjoyable, so that you can get the feel in g of office automat io n in th e test

and an al ysis work.

Be fore using th e instrum en t, please rea d this manual, and ope rate and

maintain the instrum ent accordi ng to the manual to pr olong its servi ce life .

"Just a lig ht pr es s, the tes t will be co mp le ted au tomatically" is th e

oper at ing cha racteristics of thi s instrument.

If you are sat is fied wi th this inst rume nt, ple ase tell you r co lleagues;

if you are not sat isfied wi th th is instrume nt, pl ease call (0312) 6775656 to

te ll you to serve you at all times-Bao di ng Hu az he ng Elect ri c Manufacturing

Co. , Lt d., our company will de finite ly make yo u satisfied !

Contents

I.safety rules....................................................................................................错误！未定义书签。

II.what will you notice before testing........................................................... 错误！未定义书签。

III.Brief Introduction........................................................................................错误！未定义书签。

Ⅳ.Working theory.......................................................................................... 错误！未定义书签。

V.Technical parameter................................................................................... 错误！未定义书签。

VI.PLC interface............................................................................................. 错误！未定义书签。

VII.Operation Instructions and Procedures................................................错误！未定义书签。

VIII.Applying Illustration.................................................................................错误！未定义书签。

IX.Calibration.................................................................................................. 错误！未定义书签。

X.Packing list.................................................................................................. 错误！未定义书签。

XI.Maintenance...............................................................................................错误！未定义书签。

I.Overview

The HZ-5300 Contact Resistance Tester is a high-precision, digital switch detection

instrument carefully developed by the company in accordance with the IEC standard and

the relevant regulations of the latest electric power implementation standard

DL/T845.4-2004 of the People's Republic of China, using its own technical advantages.

The instrument uses high-frequency high-power constant-current switching power supply

technology, which can measure micro-ohm contact resistance. It is widely used in the

measurement of contact resistance, loop resistance of various switches and electrical

appliances, and contact resistance of cables, wires, and welds. The instrument has

accurate measurement data and stable performance. It can meet the requirements of

on-site high-voltage switch maintenance and high-voltage switch factory loop resistance

testing in electric power and power supply departments Claim. The output current and

measuring resistance are simultaneously output on the 65K true color LCD, and the

measurement results can be voltage output or stored in a USB flash drive. The power-off

storage can satisfy data query at any time.

II.Main technical indexes

1. The test current is large, which fully meets the requirements of the national standards

for testing contact resistance.

2. High output voltage and wide measuring range.

3. The test current comes from a high-precision high-current constant-current power

supply, without manual adjustment, and the test is rapid and accurate.

4. The four-terminal wiring method is adopted, which effectively eliminates the influence

of the test wire resistance on the test results.

5. The 65K true color LCD with ultra-small pixels of 320X240 dot matrix,

6. The instrument comes with a perpetual calendar clock and power-down storage, which

can automatically store 1000 sets of test data for reference at any time

7. The instrument is equipped with a micro printer, RS232 and USB interfaces, which can

communicate with a computer and store in a U disk

8. Intelligent power management technology, the instrument always works in the

minimum power state, effectively saving energy.

III.Main Technical index

Test current: 100A, 200A, 300A

Range: 0～50mΩ(100A) 0～20mΩ(200A) 0～5mΩ(300A)

Resolution: min 0.1µΩ

Accuracy: ± (0.5% ± 2 words)

Power: 1000W

Working mode: continuous measurement

Power supply: AC220V±10% 50HZ

Operating temperature: 0～40℃

Relative humidity: less than or equal to 90% without condensation

Dimensions: 355*275*147

Weight: 9.05KG

Ⅳ. Instrument panel introduction

1. Power switch: Press "I" to start power supply, press "O" to turn off power

2. AC220V: The instrument power input terminal, this instrument uses AC 220V power

supply

3. I+, I-: are current output terminals, which provide constant current for the sample

through a dedicated test wire

4. V+, V-: input terminals for the voltage signal of the test product

5. Liquid crystal: using 320X240 true color liquid crystal, fonts can be clearly observed

under strong light, display operation settings, test results, contact resistance value and

output current value

6. RS232: serial port output

7. Reset key: the whole machine is initialized and the instrument is in the ready state

8. Selection key: Press this key to select various settings of the instrument, and the data

can be printed after measurement

9. Circulation key: main menu cycle selection key or U disk storage

10. Confirm key: Press the confirm key and the instrument will start the current for testing

11.: Ground terminal of the instrument.

12. USB: U disk interface

13. Printer: thermal printer, printing measurement results

V.Menu operation

1.The boot interface display is shown in Figure 1:

Figure 1

Press the cycle key and the cursor can move cyclically among current selection, host

parameter, time selection, and data query. When the cursor is in current selection, host

parameter, and data query, press the select key to enter the next menu of the selected

menu. The cursor is in current selection. Item Press the select key to select the

measurement current. When the current is 100A or 200A, the cursor is in the time

selection item. Press the select key to cycle selection between 10 seconds, 30 seconds,

1 minute, 5 minutes, 10 minutes, and continuous , When the current is selected as 300A,

the cursor can be cycled between 10 seconds, 30 seconds, 1 minute, and press the

selection key in the time selection item. Press the start key at any time to enter the

measurement state.

2. Operation steps:

1) Complete the wiring of the instrument end and the end of the tested product as

required

2) After powering on, press the select button to select the appropriate measurement time

and measurement current, press the start button to start the current, the screen displays

"charging", a few seconds later it displays "testing", and a few seconds later it displays

the measured resistance Value and current value, after the measurement is completed,

the display is shown in Figure 2

Figure 2

According to the interface prompts, press the select key to print the measurement results,

and press the cycle key to store the measurement results in the U disk. When the reset

button is pressed during the test or the test is over, the output current of the instrument

becomes zero. After the measurement is over, the power should be turned off first, and

then the lead wire should be removed to prepare for the next test

3) In Figure 1, press the cycle key to move the cursor to the host parameter, press the

select key to enter the interface as shown in Figure 3.

Figure 3

According to the prompt, press the select key to increase the screen brightness, and

press the start key to decrease the screen brightness.

4) In Figure 3, press the cycle key to move the cursor to the clock to modify, press the

select key to enter the interface as shown in Figure 4

Figure 4

Press the cycle key to move the cursor between each date data, press the select key to

decrease the data, and press the start key to increase the data.

5) Move the cursor to the data query menu in Figure 1, and then press the select key to

enter the data query

Figure 5

In Figure 5, when the cursor is in the data query, press the select key to scroll up, and

press the start key to scroll down. Move the cursor to print, press the select key according

to the prompts to print the currently displayed data, move the cursor to the U disk for

storage, and press the select key according to the prompts to save the current displayed

data to the USB.

Ⅵ. Wiring method

Note: All connecting surfaces of the test clamp should be in reliable contact with the

sample. If oxidation is found on the contact surface, the oxide layer on the contact surface

should be removed first.

1. Wiring method: As shown in Figure 6, connect the dedicated test wire to the

corresponding I+ and I- terminals according to the color red to red, black to black, and

tighten the thin power wire into V+, In the V- socket, two clamps clamp the two ends of

the tested product.

2. Measurement: After completing the wiring in Figure 6, turn on the power switch and

select the test time for testing. The instrument will automatically complete charging,

steady current and resistance measurements.

Ⅶ.Safety measures

1. The operator should have common sense in the use of general electrical equipment or

instruments.

2. After the test, press the reset button to turn off the power switch. Note: It is strictly

forbidden to disassemble and assemble the test cables when powered.

3. If the instrument appears abnormal, first press the reset button to reset the instrument.

4. The maintenance of the instrument must be carried out by professionals, and it is not

allowed to handle it by yourself.

5. This instrument is used to measure loop resistance, and it is not allowed to measure

inductive loops.

Ⅷ.After-sales service

The instrument will be repaired and replaced free of charge for product quality problems

within one year from the date of purchase, and will provide lifetime warranty and technical

services. If you find that the instrument is abnormal or malfunctioning, please contact the

company in time to arrange the most convenient solution for you.

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