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Chino KH4000, Инструкция по техническому обслуживанию, Страница: 14 / 22

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5. Scale Adjustment 

 

When you perform a trace printing (dot printing) position adjustment only, refer to “5-2. Zero and Span Adjustment for 
Trace Printing”. 
 

 

5-1. Scale 

Check 

The check is performed on a channel to channel basis. Even if all channels use the same measuring range, an error in 
measured value may occur between channels. 
 

The rated accuracy varies between digital display and 
analog indication. 
Use a tester with the accuracy equal to or higher than the 
specified rated accuracy. 

 
 

1. Preparation 

(1)  Turn OFF the power switch and perform the wiring depending on the input signal (see figure below).   

Connect to the input terminal of the check target channel. 

(2)  Attach the terminal cover. 
(3)  Turn ON the power switch and change to [Continuous indication mode]. For details of [Continuous indication 

mode], refer to “9. Continuous Indication Mode” in instruction manual “General”. 

(4)  Display the check target channel. 
(5)  Energize the unit for at least 30 minutes (an hour or more is ideal) and then perform checking. 

 

 
 
 
 
 
 
 
 
 
 

 
Digital display: Temperature input ······· ±0.2% 

DC voltage input ········ ±0.1% 

Analog indication: ±0.5% of scale range 

 
The accuracy of the unit is ±0.1%. Therefore, you 
need to use a tester having higher degree of 
accuracy to perform proper checking. Also, attention 
should be paid to the thermocouple error. 
Note that a tester requires time to ensure its stability 
and accuracy. 
 

Tester accuracy

 

Note 1

 

 
Make sure that the reference junction temperature is 
0°C. When using an electronic reference junction 
temperature compensator, read its instruction 
manual. Also, the compensation accuracy should be 
checked. 

Reference junction compensator

 

Note 2

Содержание KH4000

Страница 1: ...INST NO INE 841B KL4000 KH4000 Multi point type Hybrid Recorder Maintenance ...

Страница 2: ...4 Hardware Check 6 4 1 Hardware Check Items and Overview 6 4 2 Printer Check 7 4 3 Display Check 8 4 4 Remote Contact Check 9 4 5 Version Check 10 4 6 Alarm Output Check 11 5 Scale Adjustment 12 5 1 Scale Check 12 5 2 Zero and Span Adjustment for Trace Printing 14 5 3 Zero and Span Adjustment for Digital Recording 16 5 4 Channel by Channel Shift Setting 18 Table of contents ...

Страница 3: ...ease contact your dealer or nearest our sales office However in cases of the followings it will be repaired at your expense even during warranty period 1 Failure or damage caused by improper use or connection or invalid repair or modification 2 Failure or damage caused by fire earthquake wind or flood thunderbolt or other extraordinary natural phenomena or pollution salt harmful gas abnormal volta...

Страница 4: ...ng checking remote contacts ofr communications when these options are used Recovering factory default settings except for options Printing specified characters in different colors Displaying all segments one digit at a time Displaying version No Forcing ON OFF output Displaying remote contact ON OFF status Adjusting zero span lines on a chart Applying correct input with tester to adjust in the sof...

Страница 5: ...gits will flash 4 Register passcode Press the key A passcode check is performed and the window of the function corresponding to the passcode will be displayed The mode will change to Operation mode if a wrong passcode is registered 5 Function switching in Maintenance mode Functions can be switched in Maintenance mode When the key is pressed on the exit window of each maintenance item the passcode ...

Страница 6: ...rdware check End End Initialization of setting parameters Pass code entry window Enter Maintenance mode corresponding to the passcode NO 2 Enter a password within 20 seconds 3 4 5 6 End Power on the unit while pressing the and keys Decimal points of all digits flash key is pressed or 20 seconds have passed ...

Страница 7: ...et Skip function No skip channel set Alarm value Not set Operation Multi point sequential display while recording is ON 3 2 Operation 1 Operation procedure 1 Select item Press the key and select 2 Start Pressing the key restarts the unit to start initialization 3 End When the initialization process is completed the mode changes to Operation mode and normal operation is resumed 2 Operation flow cha...

Страница 8: ... 0 to 9 Trace printing Dot printing is performed for 11 columns and 6 lines using different colors 10 at a time Pressing the moves one digit to the right and turns it on The display appears only when the optional remote contact function is used You can check if the unit recognizes the remote contact input status short open correctly Each CPU ROM software version number is displayed The display app...

Страница 9: ...tatus LED 2 Select check item Pressing the key changes check item Select 3 Start test printing Press the key to start test printing To stop it in the middle of the process press the key 4 How to end Press the key and select and then press the key The mode changes to Operation mode when the key is pressed on the passcode entry window 2 Operation flow chart Printer check Displayed during a test Opti...

Страница 10: ... to change the leftmost digit to Make sure that all segments are turned on 3 Check 7 segment LED of each digit Pressing the key moves right Check each digit 4 How to end Press the key and select and then press the key The mode changes to Operation mode when the key is pressed on the passcode entry window 2 Operation flow chart Check display Option Option Register passcode 07789 1 2 3 4 ...

Страница 11: ... contact terminal number 3 Complete check When the above check is completed press the key 4 How to end Press the key and select and then press the key The mode changes to Operation mode when the key is pressed on the passcode entry window 2 Operation flow chart 1 2 3 4 Check remote contacts All remote contact terminals are OFF open Option Option Example Remote contact No 17 When turned ON shorted ...

Страница 12: ...U 3 How to end Press the key and select and then press the key The mode changes to Operation mode when the key is pressed on the passcode entry window 2 Operation flow chart Check version Option Option Printer CPU ROM Ver Input 1 CPU ROM Ver Input 2 CPU ROM Ver Alarm remote contact 1 CPU ROM Ver Alarm remote contact 2 CPU ROM Ver Alarm remote contact 3 CPU ROM Ver Alarm remote contact 4 CPU ROM Ve...

Страница 13: ...t output number Pressing the key advances reverses the output number Select a number to be checked 4 Turn output ON OFF Pressing the key switches output ON and OFF display shows 0 for OFF and 1 for ON 5 How to end Press the key and select and then press the key The mode changes to the operation mode when the key is pressed on the passcode entry window 2 Operation flow chart 1 2 3 4 5 Check alarm o...

Страница 14: ... switch and change to Continuous indication mode For details of Continuous indication mode refer to 9 Continuous Indication Mode in instruction manual General 4 Display the check target channel 5 Energize the unit for at least 30 minutes an hour or more is ideal and then perform checking Digital display Temperature input 0 2 DC voltage input 0 1 Analog indication 0 5 of scale range The accuracy of...

Страница 15: ...e specified accuracy range 3 Next change to the check target channel and check it likewise 4 Check also the analog indication dot printing position The accuracy of the unit is rated at an ambient temperature of 23 C 2 C Ensure safety of the surrounding environment When you changed the wiring with the terminal cover removed energize the unit for at least 30 minutes after attaching the terminal cove...

Страница 16: ...Press the key to register the zero position in the memory 3 Adjusting span position of chart 1 Press the key when you complete the zero adjustment The display shows and dotting is performed at the initial position left side of span line while feeding the chart 2 Pressing the key moves the position right left slightly about 0 05mm at one time Align the position with the span line of the chart 3 Pre...

Страница 17: ...ress to align dotting position with zero line of chart Save current dotting position as span position with above zero position in the memory Press to align dotting position with span line of chart Register passcode 07790 Save current dotting position as zero position tentatively ...

Страница 18: ...nimum value When the minimum value input and the correction data registration to the memory are completed the display changes to the span adjustment display 4 Span adjustment Obtain span correction data Apply an input equivalent to span value maximum value of measuring range The zero adjustment display appears several seconds after pressing the key The display shows a channel number and span value...

Страница 19: ...point input The number can be advanced up to 24 depending on the number of input points Maximum value input Correction value registered Minimum value input Correction value registered Maximum value input Correction value registered Minimum value input Correction value registered Maximum value input Correction value registered Maximum value input Correction value registered Register passcode 07790 ...

Страница 20: ...ired measured value Repeat above steps 4 and 5 to set a desired value 7 Check display Press the key after the rightmost digit is set Decimal points of all digits will flash 8 When set value is correct Press the key An error judgment is made and the set value is registered if no error is found After that go back to step 2 9 Error judgment display If the display shows or it indicates that the set va...

Страница 21: ...er can be advanced up to 24 depending on the number of input points Error occurred Register shift value 1 5 in the memory Yes Reset if error judgment No change Press to set 0 Cursor Display measured value after 10 Start setting No change Cursor Cursor No change Cursor Press to set 0 Cursor Press to set 0 Decimal points of all digits flash No Register Register passcode 07790 ...

Страница 22: ...CHINO CORPORATION 32 8 KUMANO CHO ITABASHI KU TOKYO 173 8632 Telephone 81 3 3956 2171 Facsimile 81 3 3956 0915 Printed in Japan ...

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