YOKOGAWA MT300 Guide

User’s
Manual
IM MT300-71EN 1/12
1st Edition
1st Edition : January 2020 (YMI)
All Rights Reserved, Copyright © 2020, Yokogawa Test & Measurement Corporation
Printed in Japan
MT300 Digital Manometer
D/A Output, Voltage/Current
Measurement Adjustment Method
This instrument should be adjusted by a qualified engineer at a qualified facility with sufficient precision. The
adjustment feature of this instrument can be used to adjust the D/A output and voltage/current measurement.
The adjustment values are retained even when the instrument is initialized, but they may be reset if the
instrument is adjusted at a YOKOGAWA factory. If you need to adjust the instrument more than that is possible
with the adjustment feature or if you want calibration and adjustment to be performed at a YOKOGAWA factory,
contact your nearest YOKOGAWA dealer.
Applicable Conditions
The following options are installed in the MT300.
• D/A output adjustment: /DA option
• Voltage/current measurement adjustment: /DM option
Equipment Used
• Digital multimeter 3458A (Keysight) or equivalent
• Standard DC voltage/current source GS200 (YOKOGAWA) or equivalent
• Standardresistor(100Ω) 2792A06(YOKOGAWA)orequivalent
Each piece of equipment must be calibrated and with sufficient precision.
Adjustment Procedure and Conditions
• Ambient temperature 23°C ± 3°C; humidity 35%RH to 75%RH; at least 30 minute warm-up
• Supplyvoltagefluctuationtolerance:90VACto132VACor180VACto264VAC
 Powerfrequencyfluctuationtolerance:47Hzto63Hz
• Use the default settings for settings that are not specified.
Procedure
Switching to Adjustment Mode
1.
Press MENU. The top menu appears.
2.
Press the Utility soft key, the Next soft key, and then the Next soft key. The following menu appears.
3.
Press the Maintenance soft key. The Maintenance menu appears.
4.
Press the Calibration soft key. A password input screen appears.
5.
Use the arrow(▲,▼,◄,and►)keystoenterthepassword“1111.”

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6.
Press ENTER. The adjustment menu appears.
The features that can be adjusted on this instrument appear.
Adjust the D/A output. Adjust the voltage/current
measurement.
Adjusting the D/A Output
1.
Connect this instrument to a digital multimeter.
Forthewiringmethodandinstrumentsetup,see“Explanation.”
2.
Press the D/A soft key. Either 2 V or 5 V is output, and the D/A output adjustment menu appears.
3.
Press the Range soft key to select the 2 V range.
Output value
4.
Press the Zero soft key. The zero point (0 V) is output, and the input screen appears.
5.
When the digital multimeter display stabilizes, use the arrow(▲,▼,◄,and►)keystoinputthevalue
displayed on the digital multimeter.
6.
Press ENTER. The zero point adjustment value is set.
7.
Press the PlusFull soft key. The full-scale positive value (+2 V) is output, and the input screen appears.
8.
When the digital multimeter display stabilizes, use the arrow(▲,▼,◄,and►)keystoinputthevalue
displayed on the digital multimeter.
9.
Press ENTER. The full-scale positive adjustment value is set.

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10.
Press the MinusFullsoftkey.Thefull-scalenegativevalue(−2V)isoutput,andtheinputscreen
appears.
11.
When the digital multimeter display stabilizes, use the arrow(▲,▼,◄,and►)keystoinputthevalue
displayed on the digital multimeter.
12.
Press ENTER. The full-scale negative adjustment value is set.
13.
Press the Range soft key to select the 5 V range.
14.
Repeat steps 4 to 12, set the adjustment values (zero point, full-scale positive and negative values) of
the 5 V range.
15.
Press the OK soft key. The adjustment values of the 2 V and 5 V ranges are saved, and the screen
returns with adjustment menu.
Adjusting the Voltage/Current Measurement
1.
Press the DMM soft key. The voltage/current measurement adjustment menu appears.
Note
Ifthewarningcode“59:Themeasuredvalueisoutofrange”appearswhenyousetanadjustmentvalue,thevaluemay
beexceedingtheadjustmentrange.Usethe:CALibrate:DMM:INITialize command to initialize the voltage/current
measurement adjustment values. When you initialize the adjustment values, they are returned to their factory default
conditions. Adjust the voltage/current measurement again.
Adjusting the Voltage Measurement
2.
Press the Range soft key to select the 5 V range.
Measurement value
When you enter adjustment
values, they are reflected in
the measurement value.
3.
Connect this instrument, digital multimeter, and standard DC voltage current source.
Forthewiringmethodandinstrumentsetup,see“Explanation.”
4.
Press the PlusFull soft key.
5.
On the standard DC voltage current source, output +5 V.

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6.
When the digital multimeter display stabilizes, use the arrow(▲,▼,◄,and►)keystoinputthevalue
displayed on the digital multimeter.
7.
Press ENTER. The full-scale positive adjustment value is set.
8.
Press the MinusFull soft key.
9.
OnthestandardDCvoltagecurrentsource,output−5V.
10.
When the digital multimeter display stabilizes, use the arrow(▲,▼,◄,and►)keystoinputthevalue
displayed on the digital multimeter.
11.
Press ENTER. The full-scale negative adjustment value is set.
Adjusting the Current Measurement
12.
Press the Range soft key to select the +20 mA range.
13.
Connect this instrument, digital multimeter, standard DC voltage current source, and standard resistor.
Forthewiringmethodandinstrumentsetup,see“Explanation.”
14.
Press the PlusFull soft key.
15.
On the standard DC voltage current source, output +20 mA.
16.
When the value displayed on the digital multimeter stabilizes, divide the displayed value by the standard
resistor value to calculate the current.
17.
Use the arrow(▲,▼,◄,and►)keystoenterthecalculatedcurrent.
18.
Press ENTER. The full-scale positive adjustment value is set.
19.
Press the MinusFull soft key.
20.
OnthestandardDCvoltagecurrentsource,output−20mA.
21.
When the value displayed on the digital multimeter stabilizes, divide the displayed value by the standard
resistor value to calculate the current.

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22.
Use the arrow(▲,▼,◄,and►)keystoenterthecalculatedcurrent.
23.
Press ENTER. The full-scale negative adjustment value is set.
Saving the Adjustment Values
24.
Press the OK soft key. The adjustment values of the 5 V and 20 mA ranges are saved, and the screen
returns with adjustment menu.
Ending Adjustment Mode
1.
On the adjustment menu, press ESC.
2.
Press the OK soft key. The screen returns the top menu.
Canceling the Adjustment Values
1.
On the D/A output or voltage/current measurement adjustment menu, press ESC.
D/A output adjustment menu
2.
Press the OK soft key. The adjustment values are discarded, and the screen returns to the adjustment
menu.

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Calibrating after Adjustment
After adjustment, be sure to calibrate the instrument. After calibration, enter the user calibration date.
Entering the User Calibration Date
1.
Press MENU. The top menu appears.
2.
Press the Utility soft key, the Next soft key, and then the Next soft key. The following menu appears.
3.
Press the Maintenance soft key. The Maintenance menu appears.
4.
Press the Calibration Date soft key. The following menu appears.
5.
If you calibrated the D/A output, press the D/A Cal. Date soft key. The following screen appears.
6.
Use the arrow(▲,▼,◄,and►)keystoenterthedate,andthenpressENTER.
7.
If you calibrated the voltage/current measurement (/DM option), in step 5 above, press the DMM Cal.
Date soft key, and enter the calibration date.

7/12IM MT300-71EN
Explanation
Wiring Method and Instrument Configuration
Adjusting the D/A Output
• Connect this instrument’s D/A output terminal to the 3458A digital multimeter’s voltage input terminal.
DMM (3458A)
H L
MT300
D/Aout
+-
• Set the 3458A measurement range to 10 VDC range and the integration time to 50NPLC.
Adjusting the Voltage Measurement
• Connect this instrument’s voltage input terminal, the 3458A digital multimeter’s voltage input terminal, and
the GS200 standard DC voltage current source’s output terminal.
SOURCE (GS200)
H L
MT300
V
DMM (3458A)
H L
A COM
• Set the 3458A measurement range to 10 VDC range and the integration time to 50NPLC.
Adjusting the Current Measurement
• Connect this instrument’s current input terminal, the 3458A digital multimeter’s voltage input terminal, the
GS200standardDCvoltagecurrentsource’soutputterminal,andthe2792A06standardresistor.
SOURCE (GS200)
H L
MT300
V
DMM (3458A)
H
L
A COM
100Ω
• Set the 3458A measurement range to 10 VDC range and the integration time to 50NPLC.

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List of Commands
Command Function Page
CALibrate Group
:CALibrate:DA:ADJust:MFULl Sets the full-scale negative adjustment value of the D/A output. 9
:CALibrate:DA:ADJust:PFULl Sets the full-scale positive adjustment value of the D/A output. 9
:CALibrate:DA:ADJust:ZERO Sets the zero point adjustment value of D/A output. 9
:CALibrate:DA:DATE? Queries the date when the adjustment value of D/A output was written. 9
:CALibrate:DA:INITialize Initializes the adjustment value of D/A output. 9
:CALibrate:DA:POINt Sets or queries the adjustment point of the D/A output range to be adjusted. 10
:CALibrate:DA:RANGe Sets or queries the D/A output range to be adjusted. 10
:CALibrate:DA:WRITe Writes the adjustment value of D/A output. 10
:CALibrate:DMM:ADJust:MFULl Sets the full-scale negative adjustment value of the voltage/current
measurement.
10
:CALibrate:DMM:ADJust:PFULl Sets the full-scale positive adjustment value of the voltage/current
measurement.
10
:CALibrate:DMM:DATE? Queries the date when the adjustment value of voltage/current measurement
was written.
11
:CALibrate:DMM:INITialize Initializes the adjustment value of voltage/current measurement. 11
:CALibrate:DMM:MEASure? Queries the measured voltage/current. 11
:CALibrate:DMM:POINt Sets or queries the adjustment point of the measurement range of the
voltage/current measurement to be adjusted.
11
:CALibrate:DMM:RANGe Sets or queries the measurement range of the voltage/current measurement
to be adjusted.
11
:CALibrate:DMM:WRITe Writes the adjustment value of voltage/current measurement. 11
:CALibrate:FUNCtion Sets or queries the adjustment target (voltage/current measurement, D/A
output).
12
:CALibrate:PASSword Enters the password for switching to adjustment mode. 12

9/12IM MT300-71EN
CALibrate Group
:CALibrate:DA:ADJust:MFULl
Function Sets the full-scale negative adjustment value of
the D/A output.
Syntax :CALibrate:DA:ADJust:MFULl <Voltage>
<Voltage> =
5 V range
 −4.00000(V)to−6.00000(V)(0.00001Vsetting
resolution)
2 V range
 −1.60000(V)to−2.40000(V)(0.00001Vsetting
resolution)
Example :CALIBRATE:DA:ADJUST:MFULL −5.00000V
Description • Onmodelswithoutthe/DAoption,a“241:
Hardwaremissing”errorwilloccur.
• Use the :CALibrate:FUNCtion command in
advance to set the adjustment target to DA. If
theadjustmenttargetisnotDA,a“221:Setting
conflict”errorwilloccur.
• Use the :CALibrate:DA:POINt command
to set the adjustment point to MFULL. If the
adjustmentpointisnotMFULL,a“221:Setting
conflict”errorwilloccur.
:CALibrate:DA:ADJust:PFULl
Function Sets the full-scale positive adjustment value of
the D/A output.
Syntax :CALibrate:DA:ADJust:PFULl <Voltage>
<Voltage> =
5 V range
4.00000(V)to6.00000(V)(0.00001Vsetting
resolution)
2 V range
1.60000(V)to2.40000(V)(0.00001Vsetting
resolution)
Example :CALIBRATE:DA:ADJUST:PFULL5.00000V
Description • Onmodelswithoutthe/DAoption,a“241:
Hardwaremissing”errorwilloccur.
• Use the :CALibrate:FUNCtion command in
advance to set the adjustment target to DA. If
theadjustmenttargetisnotDA,a“221:Setting
conflict”errorwilloccur.
• Use the :CALibrate:DA:POINt command
to set the adjustment point to PFULL. If the
adjustmentpointisnotPFULL,a“221:Setting
conflict”errorwilloccur.
:CALibrate:DA:ADJust:ZERO
Function Sets the zero point adjustment value of D/A
output.
Syntax :CALibrate:DA:ADJust:ZERO <Voltage>
<Voltage> =
5 V range
−0.50000(V)to0.50000(V)(0.00001Vsetting
resolution)
2 V range
−0.20000(V)to0.20000(V)(0.00001Vsetting
resolution)
Example :CALIBRATE:DA:ADJUST:ZERO 0.10000V
Description • Onmodelswithoutthe/DAoption,a“241:
Hardwaremissing”errorwilloccur.
• Use the :CALibrate:FUNCtion command in
advance to set the adjustment target to DA. If
theadjustmenttargetisnotDA,a“221:Setting
conflict”errorwilloccur.
• Use the :CALibrate:DA:POINt command
to set the adjustment point to ZERO. If the
adjustmentpointisnotZERO,a“221:Setting
conflict”errorwilloccur.
:CALibrate:DA:DATE?
Function Queries the date when the adjustment value of D/
A output was written.
Syntax :CALibrate:DA:DATE?
Example :CALIBRATE:DA:DATE?
-> :CALIBRATE:DA:DATE "2019/09/12"
Description Onmodelswithoutthe/DAoption,a“241:
Hardwaremissing”errorwilloccur.
:CALibrate:DA:INITialize
Function Initializes the adjustment value of D/A output.
Syntax :CALibrate:DA:INITialize
Example :CALIBRATE:DA:INITIALIZE
Description • Initializes the adjustment value of D/A output.
Onmodelswithoutthe/DAoption,a“241:
Hardwaremissing”errorwilloccur.
• Use the :CALibrate:FUNCtion command in
advance to set the adjustment target to DA. If
theadjustmenttargetisnotDA,a“221:Setting
conflict”errorwilloccur.

10/12 IM MT300-71EN
:CALibrate:DA:POINt
Function Sets or queries the adjustment point of the D/A
output range to be adjusted.
Syntax :CALibrate:DA:POINt {PFULL|MFULL
|ZERO}
CALibrate:DA:POINt?
PFULL: Full-scale positive value
MFULL: Full-scale negative value
ZERO: Zero point
Example :CALIBRATE:DA:POINT PFULL
:CALIBRATE:DA:POINT?
-> :CALIBRATE:DA:POINT PFULL
Description • Onmodelswithoutthe/DAoption,a“241:
Hardwaremissing”errorwilloccur.
• Use the :CALibrate:FUNCtion command in
advance to set the adjustment target to DA. If
theadjustmenttargetisnotDA,a“221:Setting
conflict”errorwilloccur.Aqueryreturnsthe
current value.
:CALibrate:DA:RANGe
Function Sets or queries the D/A output range to be
adjusted.
Syntax :CALibrate:DA:RANGe <Voltage>
:CALibrate:DA:RANGe?
<Voltage> = 2, 5 (V)
Example :CALIBRATE:DA:RANGE 5V
:CALIBRATE:DA:RANGE?
-> :CALIBRATE:DA:RANGE 5.0E+00
Description • Onmodelswithoutthe/DAoption,a“241:
Hardwaremissing”errorwilloccur.
• Use the :CALibrate:FUNCtion command in
advance to set the adjustment target to DA. If
theadjustmenttargetisnotDA,a“221:Setting
conflict”errorwilloccur.Aqueryreturnsthe
current value.
:CALibrate:DA:WRITe
Function Writes the adjustment value of D/A output.
Syntax :CALibrate:DA:WRITe
Example :CALIBRATE:DA:WRITE
Description • Onmodelswithoutthe/DAoption,a“241:
Hardwaremissing”errorwilloccur.
• Use the :CALibrate:FUNCtion command in
advance to set the adjustment target to DA. If
theadjustmenttargetisnotDA,a“221:Setting
conflict”errorwilloccur.
 • Whenexecuted,theadjustmenttargetissetto
NONE.
:CALibrate:DMM:ADJust:MFULl
Function Sets the full-scale negative adjustment value of
the voltage/current measurement.
Syntax :CALibrate:DMM:ADJust:MFULl <NRf>
<NRf> =
5 V range
−4.00000(V)to−6.00000(V)(0.00001Vsetting
resolution)
20 mA range
−16.0000(mA)to−24.0000(mA)(0.00001mA
setting resolution)
Example :CALIBRATE:DMM:ADJUST:MFULL−5.00000
Description • Onmodelswithoutthe/DMoption,a“241:
Hardwaremissing”errorwilloccur.
• Use the :CALibrate:FUNCtion command in
advance to set the adjustment target to DMM.
IftheadjustmenttargetisnotDMM,a“221:
Settingconflict”errorwilloccur.
• Use the :CALibrate:DMM:POINt command
to set the adjustment point to MFULL. If the
adjustmentpointisnotMFULL,a“221:Setting
conflict”errorwilloccur.
:CALibrate:DMM:ADJust:PFULl
Function Sets the full-scale positive adjustment value of
the voltage/current measurement.
Syntax :CALibrate:DMM:ADJust:PFULl <NRf>
<NRf> =
5 V range
4.00000(V)to6.00000(V)(0.00001Vsetting
resolution)
20 mA range
16.0000(mA)to24.0000(mA)(0.00001mA
setting resolution)
Example :CALibrate:DMM:ADJust:PFULl5.00000
Description • Onmodelswithoutthe/DMoption,a“241:
Hardwaremissing”errorwilloccur.
• Use the :CALibrate:FUNCtion command in
advance to set the adjustment target to DMM.
IftheadjustmenttargetisnotDMM,a“221:
Settingconflict”errorwilloccur.
• Use the :CALibrate:DMM:POINt command
to set the adjustment point to PFULL. If the
adjustmentpointisnotPFULL,a“221:Setting
conflict”errorwilloccur.

11/12IM MT300-71EN
:CALibrate:DMM:DATE?
Function Queries the date when the adjustment value of
voltage/current measurement was written.
Syntax :CALibrate:DMM:DATE?
Example :CALIBRATE:DMM:DATE?
 ->:CALIBRATE:DMM:DATE"2019/09/12"
Description Onmodelswithoutthe/DMoption,a“241:
Hardwaremissing”errorwilloccur.
:CALibrate:DMM:INITialize
Function Initializes the adjustment value of voltage/current
measurement.
Syntax :CALibrate:DMM:INITialize
Example :CALIBRATE:DMM:INITIALIZE
Description • Initializes the adjustment value of voltage/
current measurement. On models without the /
DMoption,a“241:Hardwaremissing”errorwill
occur.
• Use the :CALibrate:FUNCtion command in
advance to set the adjustment target to DMM.
IftheadjustmenttargetisnotDMM,a“221:
Settingconflict”errorwilloccur.
:CALibrate:DMM:MEASure?
Function Queries the measured voltage/current.
Syntax :CALibrate:DMM:MEASure?
Example :CALIBRATE:DMM:MEASURE?
->:CALIBRATE:DMM:MEASURE5.0000E+00
Description • Onmodelswithoutthe/DMoption,a“241:
Hardwaremissing”errorwilloccur.
• If the value is +OverRange or +OverFlow,
9.90E+37isreturned.
Ifthevalueis−OverRangeor−OverFlow,
−9.90E+37isreturned.
If DMM is not selected with the
:CALibrate:FUNCtioncommand,9.91E+37
is returned.
:CALibrate:DMM:POINt
Function Sets or queries the adjustment point of the
measurement range of the voltage/current
measurement to be adjusted.
Syntax :CALibrate:DMM:POINt {PFULL|MFULL}
:CALibrate:DMM:POINt?
PFULL: Full-scale positive value
MFULL: Full-scale negative value
Example :CALIBRATE:DMM:POINT PFULL
:CALIBRATE:DMM:POINT?
-> :CALIBRATE:DMM:POINT PFULL
Description • Onmodelswithoutthe/DMoption,a“241:
Hardwaremissing”errorwilloccur.
• Use the :CALibrate:FUNCtion command in
advance to set the adjustment target to DMM.
IftheadjustmenttargetisnotDMM,a“221:
Settingconflict”errorwilloccur.Aqueryreturns
the current value.
:CALibrate:DMM:RANGe
Function Sets or queries the measurement range of the
voltage/current measurement to be adjusted.
Syntax :CALibrate:DMM:RANGe{VOLTage,
<Voltage>|CURRent,<Current>}
:CALibrate:DMM:RANGe?
<Voltage> = 5 (V)
<Current> = 20 (mA)
Example :CALIBRATE:DMM:RANGEVOLTAGE,5V
:CALIBRATE:DMM:RANGE?
• 5 V range
 ->:CALIBRATE:DMM:RANGEVOLTAGE,
5.000E+00
• 20 mA range
 ->:CALIBRATE:DMM:RANGECURRENT,
20.0E−03
Description • Onmodelswithoutthe/DMoption,a“241:
Hardwaremissing”errorwilloccur.
• Use the :CALibrate:FUNCtion command in
advance to set the adjustment target to DMM.
IftheadjustmenttargetisnotDMM,a“221:
Settingconflict”errorwilloccur.Aqueryreturns
the current value.
:CALibrate:DMM:WRITe
Function Writes the adjustment value of voltage/current
measurement.
Syntax :CALibrate:DMM:WRITe
Example :CALIBRATE:DMM:WRITE
Description • Onmodelswithoutthe/DMoption,a“241:
Hardwaremissing”errorwilloccur.
• Use the :CALibrate:FUNCtion command in
advance to set the adjustment target to DMM.
IftheadjustmenttargetisnotDMM,a“221:
Settingconflict”errorwilloccur.
 • Whenexecuted,theadjustmenttargetissetto
NONE.

12/12 IM MT300-71EN
:CALibrate:FUNCtion
Function Sets or queries the adjustment target (voltage/
current measurement, D/A output).
Syntax :CALibrate:FUNCtion {DMM|DA|NONE}
:CALibrate:FUNCtion?
DMM: Voltage/current measurement
DA: D/A output
NONE: Not selected
Example :CALIBRATE:FUNCTION DMM
:CALIBRATE:FUNCTION?
-> :CALIBRATE:FUNCTION DMM
Description • If you change the adjustment target before
executingthe:CALibrate:DMM:WRITe
or :CALibrate:DA:WRITe command, the
adjustment values that you have set will
return to their original values. Be sure to write
the adjustment values using the appropriate
command before changing the adjustment
target.
• On models without the /DM option, sending a
:CALibrate:FUNCtion DMM command will
causea“141:Invalidcharacterdata”error.
• On models without the /DA option, sending a
:CALibrate:FUNCtion DA command will
causea“141:Invalidcharacterdata”error.
:CALibrate:PASSword
Function Enters the password for switching to adjustment
mode.
Syntax :CALibrate:PASSword {<String>}
<String>:Password
Example :CALIBRATE:PASSWORD "1111"
Description You must enter a password to use the commands
in the CALibrate group.
Enter a character string for the password.
Toexitfromadjustmentmode,enteranempty
string (two consecutive double quotation marks).