µR10000 & µR20000

Industrial and laboratory environments require rigorous and continuous monitoring during manufacturing process. Yokogawa's μR series strip chart recorder provides accurate high resolution measurement charts that can withstand harsh production environments. The μR series can be used as a monitoring device as well as quality control instrument in many applications such as pharmaceutical, chemical, power generation, heat treat and environmental monitoring.



Carries over the features of the Number One Industrial Recorders

  • Carryover of the µR1000/µR1800
  • Bringing you the highest reliability
  • Large VFD, Easy to Read
  • Navigational Display
  • Internal Illumination and New Chart Cassette
  • Powerful Math Functions
  • Variety of Networking Functions
  • Application Software
  • A Free Software Upgrade
  • A Wealth of Recording and Printing Functions
  • Adding New Functions
    (Calibration Correction, 24 VDC/AC Power Supply, Portable Type)

Retains the Same Powerful Specifications of the μR1000 and μR1800

Pen and plotter pens Ribbon cassette

Bringing You the Highest Reliability

Servo Unit


The pen servo unit takes advantage of an ultra-small, rack-and-pinion stepping motor. The servo unit is smaller and consumes less power than previous models.

Splash-proof Front Door (conforms to DIN 40050-IP54)


The front door meets DIN 40050-IP54 standards in panel-mount installations.

High-Voltage Solid State Scanners

High withstand voltage semiconductor relays have been adopted for scanners that switch the input signal. They enable high speed scanning of six dots per second, increase the life of the scanner, and reduce noise.

Use of ASICs

The recorders feature a high degree of functional integration through Yokogawa's renowned ASICs (application specific integrated circuits, or custom ICs). They allow for reduced power consumption, increased lifespan of components, and suppressing of heat emmisions.

Safety/EMC Standards

EMI testing LAB in Yokogawa

Yokogawa's highly reliable industrial recorders support safety and EMC (electromagnetic compatibility) standards. And of course, the µR conforms to the European CE marking standard.



*Individual terminals are removable, making wiring and maintenace easy.


*Individual terminals are removable, making wiring and maintenace easy.

Uses a large, easy-to-view VFD 101 x 16 (µR10000), 181 x 16 (µR20000) full dot matrix display. All settings are interactive, and supported by the navigational display, offering easier to read selections and superior ease of operation.

Multi-Display (Displays a Variety of Screens) for Site Monitoring

"I want to use my recorder as a monitor."
µR10000 - 6 channel digital display (6 dot model) µR20000 - 12 channel digital display (12, 18, and 24 dot models)
ns-mr-04-02-1.jpg ns-mr-04-02-2.jpg
2 channel digital display 4 channel digital display
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"I want to monitor the recorder position on an analog indicator."

µR10000 Flag display µR20000 Flag display
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"I want to monitor alarms collectively."

µR10000 Channel alarm status display µR20000 Channel alarm status display
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Navigational Display Makes Setup a Snap

All settings are interactive, and supported by the navigational display, offering superior ease of use.

µR10000 Navigation Display
(Example of Range Setting)

Upper (setting parameter): The setting channel, range, span (left), or span (right) is displayed.
Lower (setting navigation): An explanation and setting range for the parameter is displayed.

µR10000: scrolls for 18 characters or more
µR20000: scrolls for 31 characters or more

This µR reflects advances in the chart cassette and internal illumination. Also, our new disposable pen (pen model), plotter pen, cassette ribbon (dot model), and chart paper maintain compatibility with previous models.

By using a high intensity white LED and light-diffusing rod for the internal illumination, the visibility of the chart section has been greatly increased.

Chart Cassette

The chart cassette is equipped with a chart-ejection function. You can write memos on the chart and check the historical trend during recording.

µR10000 µR20000

Powerful Math Functions (/M1 Option) 

Analog recording of computed results

Dot model:
Allows recording on all computation channels (12 ch). Recording can be turned ON/OFF on each channel. 

Pen model:
You can assign measured or computed results to an arbitrary pen for recording.




Computation channels Uses measurement channels, communication digital input, and remote input.
No. of computation channels Pen models: 8ch
dot models: 12 ch (µR10000), 24 ch (µR20000)
Computations The four arithmetic operations (+, -, ×, ÷), square root, absolute value, common logarithm (y=log10x), exponents (eX), and powers.
Relational operators (<, >, ≤, ≥, =, ≠)
Logical operations (AND, OR, NOT, XOR)
Constants 30
Communication digital input Pen: 8 points, Dot: 12 points (µR10000), 24 points (µR20000)
Remote input Up to 5 remote inputs allowed.
Remote status (0/1) can be used in equations.
Equations Up to 120 characters can be used
Statistical computations MAX, MIN, AVE, SUM, MAX-MIN

Variety of Networking Functions

A Wealth of Recording and Printing Functions

Printing Example


ns-mr10000-4pen-record01.jpg ns-mr10000-4pen-record01.jpg
4 pen model 6 dot model



24 dot model

ns-mr-printing-list.jpg ns-mr-report.jpg




Partial expanded recording
Any important portion within the full scale can be expanded for recording.
Zone recording
Recording areas (zones) for each channel can be recorded separately.

Calibration Correction (Option, /CC1)

This function enables minute adjustments when a certain correction is necessary due to deterioration of a sensor, or if measured values fall within the accuracy range but fluctuate relative to the displayed values on other instruments. Input signals are corrected based on a specified broken line, and its values are measured.

Number of Set Points
You can select the number of points that make up the segments (including the start and end points) in the range of 2 to 16. 

Using revision values
Using revision values

Using absolute values
Using absolute values 
Corrected value (B4) of the fourth set point = a ? b

Example of the Input Values

Input Value Corrected Value Revision Value Absolute Value
9.8° 10.0° 0.2° 10.0°
90.5° 90.0° -0.5° 90.0°

24 VDC/AC Power Supply (Option, /P1)

The unit can be powered under 24 VDA or 24 VAC.

  • Rated power supply: 24 VDC/AC
  • Allowable power supply voltage range: 21.6 to 26.4 VDC/AC
  • Dielectric strength:
  • Power supply to ground terminal: 1000 VAC
  • Power consumption (approx.): 
Supply Voltage Max.
24 VDC Approx. 50 VA
24 VAC (50/60 Hz) Approx. 60 VA

Portable Type (Option, /H5[ ] )

This model comes with a convenient carrying handle and portable power cord. 

Names of Parts

Names of parts Names of parts
µR10000 µR20000
  1. Carrying handle
  2. Protective ground terminal (spare)
  3. Power terminal with protective ground terminal (attache the specified power cord)
  4. Feet (four)



Header Printout (Option, /BT1)

Manufacturing process information such as batch/lot number and comments can be printed out in synchronization with analog recording.

Example Printout (Pen Model)

*With the µR series, computed value can be included.


  • Bach name = batch number (characters)- lot number (4 or 6 digit number)
    Batch number - 000001
    batch number   lot number (you can automatically increment by 1 when recording stops.)
  • Start printout/End printout: Printout operates like manual printout (stopped during analog recording).
  • Message printout: During analog recording, you can print out messages that include measured* values.
    (Measured* values, message strings, and date/time can be set arbitrarily.)

Basic operation

  • When you start recording, the Start printout is performed.
  • When you stop recording, the End printout is performed.
  • During analog recording, you can print out messages that include measured* values.

This basic operation pattern is shown in the figure below.

Basic operation pattern

*With the µR series, computed value can be included.

  • SD card (up to 32 GB) enables long-duration recording
  • Provides backup and recall if chart data is lost due to paper jams or ink problems
  • Save main unit settings such as input ranges and alarms to SD card for reuse when replacing or adding instruments.



The Japan Steel Works, LTD., Muroran Plant uses the Control and Measurement Station CX2000, UP series program controllers, and UT series digital indicating controllers for operation of its heat treating furnaces.


Environmental data (water quality, amount of flow) is measured on-site and monitored from an office.


Measures temperature and vibration of the turbine for rapid identification of abnormalities.


By using the computation function of the SMARTDAC+ series Paperless recorder GX/GP, computation option computes the "F-value," or sterilizing value for the sterilization process, so that the computation results can be recorded in the form of data.

The µR series can be used close together. There is no specified spacing. However please see the panel cutout dimensions for each model in the specifications.
It conforms to the DIN40050-IP54 dust and splash proof specification.
The length of the chart paper is 16 m (16000 mm). One month is 720 hours, therefore if you set a chart speed of 16000/720 = 22 mm/hr or less, you can record for a month. Pen model: From 5 mm/hr —12000 mm/hr, select 20 mm/h. Dot model: In th...
Low cut means to cut out anything less than 0% of the recording span. For example since the error is large when measuring small quantities of flow on an orifice flow meter or other device, this function prevents any impossible negative values from oc...
Yes. For simultaneous recording, you must add the Ethernet communication interface option (suffix code /C7) to the µR20000. You will also need to install DAQLOGGER (model WX101) and Gate-µR (model WX1) on the PC. With the µR20000 an...
The rated current is 1 mA.
About how accurate is the clock?
The clock accuracy is ±100 ppm (parts per million). The clock can be off by up to ±8.64 seconds per day, or about 4 minutes per month. If you add the remote control function option (suffix code /R1), you can set the time via external co...
Yes, this is called the Alarm Delay function. You can set the alarm delay in the range of 1 to 3600 seconds.
This is the width of waveforms that can be printed on the chart paper. It is 100 mm on the µR10000, and 180 mm on the µR20000.
Modbus communication allows sending/receiving of data only. To set the µR20000 range setting, you need the µR20000 dedicated commands rather than Modbus communication.
That means it is the second feed speed. With external contact (optional) you can switch the feed speed, but even if you don't have external contact there is still a second feed speed setting, so it is printed out in the list.
You can if you add the MATH function option (suffix code /M1). The digital display is possible if you write data from the PC to the main unit's math channels.
For new products, make sure you have removed all protective materials from the inside of the unit. If you have used the product before, turn OFF the power, "jiggle" the pen of the channel on which the error occurs, then turn the power back ...
For new products, make sure you have removed all protective materials from the inside of the unit. If you have used the product before, turn OFF the power, remove the ink ribbon, then turn the power back ON again. If the error persists, servicing is ...
Yes, on the following page. Recorder's Consumables (chart paper, pens, and ribbon cassettes)
It is set automatically so that dots do not overlap on the chart paper. The dot interval (space between dots on the chart paper) is determined by the chart paper feed speed (chart speed). You can check the recording interval in the system display. Fo...
How do I install and wire my product?
The following user's manuals explain how to install and wire products. µR10000 (4361xx) : Installation and Wiring in the Operation Guide (IM04P01B01-02) µR20000 (4371xx) : Installation and Wiring in the Operation Guide (IM04P02B01...
See the following user's manuals. µR10000 (4361xx): Settings and Initialization in the Operation Guide (IM04P01B01-02) µR20000 (4371xx): Settings and Initialization in the Operation Guide (IM04P02B01-02) µR10000 Recorder O...
Specify the header printout option (suffix code /BT1). If you turn OFF the RCD button, the pen moves to the left edge, and when you turn the power ON, it returns to the recording position. Additionally, you can print out the batch name, comment, date...
Check the type of signal for temperature measurement. For example, the type of thermocouple (K, R, etc.). Aside from thermocouples, there's also the Pt100Ω RTD, etc. Setting ranges based on this information will give you accurate measuremen...
No, the commands for reading measured data are different between the µR1000/µR1800 and µR10000/µR20000. Please consider different options.
Q: I'm considering a µR series model with the alarm relay contact output option (/A1-/A5). When assigning multiple alarms to a single alarm relay contact output, can I make it so that the relay operates if just one alarm occurs? (OR operati...
Q: I'm trying to read µR measured data from a PLC using a µR series RS-422A/485 communication interface option (/C3) model. I can receive the data in binary format with the FD command, but measured data received by the PLC is complete...
When you open the front panel, the SD memory card slot is next to the power switch.
Yes. The bias function is disabled upon shipment from the factory, but you can enable it. After enabling the function, set the bias on the relevant channels to +1°C. You can also set a negative number. To enable the function, see section 7.15 ...
Yes. The measurement interval differs depending on number inputs and settings. Please see section 12.1, "Input Specifications" in the user's manual. µR10000 User’s Manual µR20000 User’s Manual ...
Yes, it comes with one 1 GB SD memory card.
No. When the SD memory card starts running out of free space, a message is displayed, and the approximate amount of memory used is displayed.
No. Measured data is saved to the SD memory card when the print channel is turned ON.
No, the interval is always the save as the measurement interval.
This appears when you attempt to modify settings or perform other such tasks while the SD memory card is being accessed. You can press the ESC key to clear the error.
Yes, the Universal Viewer. You can download it from our website. *Log-in Required
The SD memory card can be used to save measured data, print out measured data (dot model only), and as an external memory medium. You can save and load settings. Medium: You cannot overwrite the SD memory card (SD/SDHC, up to 32 GB). If free space is...
You can under certain conditions, but in general it takes about as long as the recording time.
What SD memory cards can I use?
The accessory SD memory cards and those that came with the unit have been operationally verified. SDHC type: up to 32 GB (FAT32 format) SD type: up to 2 GB (FAT16 format)
The recording time is determined by the scan interval, number of recorded channels, number of alarms, number of messages, and other factors. On a dot model (scan interval of 1 sec.) with 6 recorded channels and no alarms or messages, you can save app...
Yes, by using the SD Formatter available from the SD Association at https://www.sdcard.org/. (Microsoft Windows and other standard formats do not conform to the formatting standard of the SD memory cards.) For formatting options, you can usually use ...
See “[Support Information] List of Verified SD Memory Cards (SD Cards).”
User's Manual: See “Setting the Lot Number” in section 6.14, “Setting Up Start Printout and End Printout (/BT1 Option)” to set it to zero (or some other value). μR10000 Recorder User's Manual μR20000 Recorder Use...
Some setting items cannot be loaded depending on differences in such things as the model, number of channels, options, and Basic setting mode items. When changing Basic setting mode settings in the setup software, load settings from Basic Setting mod...
There are three settings: saving linked to record start/stop; saving by using the FUNC key; and saving linked to batch start/stop (/BT option). For details, see "Configuring to Use SD Memory Cards" in user's manual IM 04P01B01-03E. ...
It is saved in the /DATA folder. You should maintain a maximum number of data files of about 1000 (by deleting or moving unused files). Note that the absolute maximum number of files that can reside in the /DATA folder is 2730. An error occurs if thi...
When recording 24 channels on the 24 dot model that's about 4.4 days. For 24 channels plus 24 MATH channels, it's approximately 2.2 days. 6 channels on a 6 dot model is approximately 5.7 days, and 4 channels on a 4-pen model is approximately ...
Yes. You can display and convert files in the same manner as with SMARTDAC+ series data.
Error 233 appears when you attempt to save measured data to the SD memory card but the card can't be recognized. Make sure the card is inserted correctly. Also, try FUNC key > Data save > Stop (you can stop even if the SD memory card is not...
Yes. Data up to the moment just before the power failure is saved to the card. During a power failure the μR SD memory card (/EM1) stops, but the data to be written to the SD memory card is saved in buffer memory. When the power is restored, the d...
Channels whose MATH channel mode is ON are printed out.
Yes. The numbers are the ratio of rhodium in a platinum/rhodium alloy. The plus side is 40% rhodium, and the minus side is 20% rhodium. There is no official name, so some manufacturers always put the smaller number first, and others put the positive ...
Yes. Approximately every 3 seconds, 3 displays switch. See section 3.6, “Switching the Display Screen,” and chapter 8, “Setup Operations for Changing the Displayed Contents” in user's manual IM 04P01B01-01E or IM 04P02B01-...
Yes. You can start/stop data saving via remote input by assigning the Data Save On/OFF function to the remote control input terminals. See “Assigning Functions to the Remote Control Input Terminals (/R1 Option)” in user's manual IM 04...
Once the μR main unit memory accumulates data, it writes a certain amount to the SD memory card (/EM1). If you eject the SD memory card while data is being saved, some of the data between the start of writing and when the card is ejected may not g...
Yes. Create a folder called SET0, and save the settings file in it. Note: The SET0 folder is created automatically when you save settings on the SD memory card from the μR (/EM1).
With a dot model, you can reproduce measured data on chart paper. You can also load measured data from the SD memory card on Universal Viewer. With a pen model, you can open Universal Viewer on a PC and send the data to a printer, but you can't r...
No, the μR10000/μR20000 doesn't support FTP server or client functions.
No, you can only add it (suffix code /EM1) at the time of purchase. It can't be added later at the factory.
There are 2 interval settings for printing of numeric values (periodic printout): Auto (determined automatically according to the chart speed), and Manual (select from 10 min. to 24 hrs.). For details see section 7.8, "Setting the periodic print...
The scaling can be set in the range from -20000 to 30000 excluding the decimal point. By using fewer digits after the decimal point, you may be able to set it. For example, 500.00 is equivalent to 50000, therefore it is not allowed, but 500.0 is allo...
It starts when contact is ON (rising edge) and stops when OFF (falling edge).
Yes. Remote input works by detecting the contact's edge, so you can start/stop recording even by key operation (except when setting priority to remote recording).
Yes, if the option includes header printout (/BT1). In the remote (Basic setting mode) settings, select Remote key lock priority. For details, see section 7.18, "Assigning functions to the remote control input terminals (suffix code /R1)" i...
1-5 V and linear scaling both have the same measurement accuracy. With the 1-5 V range, you can use low cut. For the 1-5 V range, set the span in the allowable range. Ensure that you set it so that scale left < scale right.
If one channel using the same dot color as another channel has data points to print in the same position as the other channel, it won’t print those data points. A dot is printed only once. (There are 6 dot colors).
Range setting mode 1-5 V has a restriction in which you must set scale left < scale right. Change to linear scaling, which does not have that restriction.
Expiration period A length of time from manufacture during which it can be used normally. 2 years, if unopened. Check the month and year of manufacture on the package or ink ribbon. Storage conditions 1) Temp./humidity: 10-30°C, 30-65% 2) L...
When printing periodic printout or other items, time ticks that indicate the date and time are printed as underscores (_). For example, at the periodic printout start time, if the chart speed is shown as 50mm/h_ then the position of the "_"...
The FAIL output from the FAIL terminal (suffix code /F1) is deenergized during a CPU abnormality or when the power is OFF, and operates so that NO-Com is open, and NC-Com is closed. During normal operation, it is energized, and NO-Com is closed and N...
Yes. Start recording to the SD card using the following method. Press the FUNC key. Use the ▽△ keys to display Data_Save and press Enter. With Start displayed, press Enter. * The LED to the left of the SD card slot blinks green when the SD car...
Smudging can occur when using chart paper or ink that is not from Yokogawa or International Chart. Please use genuine paper and ink from those companies. Please see genuine products list page below. "Recorder's Consumables (Chart Papers, Pen...
Yes. Those consumables for the µR1000/µR1800 are the same as those for the current product, the µR10000/µR20000. Please see genuine products list page below. "Recorder's Consumables (Chart Papers, Pens, Ribbon cassett...
Yes, see section 6.1, “Setting the Recording Interval (Dot Model)” in the latest version of the user's manual.
The scale intervals on genuine Yokogawa chart paper are as follows. μR10000: 10 mm μR20000: 12.5 mm Note, the chart speed upon shipment from the factory is 20 mm/h for the µR10000 and 25 mm/h for the µR20000, which means 1 square i...
Check whether the thermocouple is disconnected or broken. Also, with no input connected, try shorting plus and minus. If the input terminal temperature is displayed, the problem is not with the µR.
Yes. Set the range settings as follows. Mode: Linear scaling Range: 6 V Left span: 1.000 V Right span: 3.667 V Left scale: 0.0 Right scale: 100.0 (Note: if the mode is 1–5 V, you cannot set the right span outside of 4.8–5.2 V.) ...
Yes. For details, please contact your Yokogawa sales representative.
No. The 6 channel digital display is only for measurement channels.
Feed 1000 mm chart paper, and check for up to 1 mm of measurement error based on the scale of the chart paper.
・△:Alarm occurred, ▽:Alarm cleared ・Channel number or tag ・Alarm type ・Level number See "Recording/Viewing" > Description of printed out contents > Alarm printout in the operation guide, or section 1.4 “Recording" > &ldq...
Yes, by adding the header printout option (/BT1). For a description of the start printout, see section 1.4, "Recording" > "Header printout (option /BT1)"in the user's manual. For the settings, see sections 7.24 and 6.14. ...
If you stop recording during printout, the data being printed out remains in the printout buffer, and printout resumes the next time recording starts. Wait until the printout finishes, or clear the printout buffer. There’s no operation for clea...
Yes. In Basic setting mode, select "Advanced_Function" > "Time_Printout," and then change the printout date and time formats. You can change the alarm printout, message printout, printout on recording start, and printout on ch...
No, not with the 12 channel numeric display, but you can select the 4 channel or 2 channel numeric display, and then switch channels.
Yes, with message printout. For message registration and printout operation, see section 6.8, “Setting a Message String" and section 3.10, “Message Printout" in the user's manual. ...
Message printout doesn’t work during recording. Also, messages don’t print out when the chart speed meets the following conditions. µR10000 Pen model: 1600 mm/h or more Dot model: 101 mm/h or more µR20000 Pen model: 1600 mm/...
The time window in which you can input the contact and then set the time is limited. While the time on the µR is between 2 m 00 s and 57 m 59 s, the time is not changed. Input the contact while the time on the µR is between 58 m 00 s and ...
It changes color so that each color of the ribbon is consumed as equally as possible.
Check every 2 channels on the pen model, and 1 representative channel on the dot model.
No. For long periods of non-use, to prevent ink from bleeding, remove the pens and store with caps attached.
3 months (24 hours of continuous use).
Yes, with the periodic printout function.
Yes, combine the degree symbol " ° " with the letter "C."
Yes. See section 6.4, "Setting the Recording Zone for Each Channel (Zone Recording)" in the user's manual.
Yes, by using GateµR along with DAQLOGGER.
Yes, the µR series panel cutout dimensions are the same as those of the DX2000, so you can replace them easily.
For instruments that support RoHS 10 restricted substances, see GS 04A01A01-02EN. For instruments that support RoHS 6 restricted substances, see GS 04A01A01-00EN. ...
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