MR8740、MR8741_user_manual_eng_20191016H.pdf - 第91页

3.5 Input Channel Setting 79 3 Chapter 3 Measuremen t Procedure Make settings for the logic channels. The channel se ttings window (Logic sheet) is shown when the display format is 1, 2, 4, 8 or 16 scre ens. 1. Logic Wid…

3.5 Input Channel Setting

Brackets indicate valid data range

*: With the 8967 TEMP Unit, the valid range differs depending on the thermocouple. For information on the minimum resolution,

see the specifications of the 8967 TEMP Unit.

7. Low-pass

filtering

Make settings for the low-pass filter of the module. This is useful for eliminating

unwanted high-frequency components. The filter type depends on the module.

Make the setting according to the input characteristics.

Full-scale resolution for input units at various vertical axis zoom factors (LSB)

Module Zoom factor

×1/10 ×1/5 ×1/2 ×1 ×2 ×5 ×10 ×20 ×50 ×100

8966 (Analog)

8971 (Current)

8972 (DC/RMS)

20000

(4000)

10000

(4000)

4000 2000 1000 400 200 100 40 20

8967

(Temperature)

200000 100000 40000 20000 10000 4000 2000 1000 400 200

8968

(High resolution)

U8974

(High voltage)

320000

(64000)

160000

(64000)

64000 32000 16000 6400 3200 1600 640 320

8969, U8969

(Strain)

U8979

(Charge)

250000

(64000)

125000

(64000)

50000 25000 12500 5000 2500 1250 500 250

8970

(Power frequency )

20000 10000 4000 2000 1000 400 200 100 40 20

8970 (Count ) 400000 200000 80000 40000 20000 8000 4000 2000 800 400

8970 (Excluding

power frequency

and count)

100000 50000 20000 10000 5000 2000 1000 500 200 100

MR8990

(DVM)

1200000 1200000

1200000 1000000

500000 200000 100000 50000 20000 10000

3.5 Input Channel Setting

Chapter 3 Measurement Procedure

Make settings for the logic channels. The channel settings window (Logic sheet) is shown when the

display format is 1, 2, 4, 8 or 16 screens.

1. Logic Width Allows changing the display width of the logic waveform.

Making waveforms more narrow can enhance the readability of the display when

there are a high number of waveforms.

Select

2. Waveform

Display

Position

Determines where on the screen the logic waveform is displayed.

The position can be freely moved within the range of the display.

3. Waveform

Display Color

Specifies the color in which the waveform of the selected channel is displayed.

You can also select the same color as another channel.

For logic modules, the color can be specified for each module and each channel

separately.

Select

3.5.3 Logic Channel

Procedure

To open the screen: Right-click and select [DISP] Waveform screen Right-click and select [CH.SET]

Channel settings window ([Logic] sheet)

2. 3.

Move the flashing cursor to the channel for

which to make settings.

Select the settings by clicking the mouse.

To copy the settings of one channel to another

See: "7.8 Copying settings to other channels (calculation No.) (Copy function)" (p.160)

Wide Make the waveform wider.

Normal Display the waveform at normal width.

Narrow

Make the waveform more narrow. (default setting)

Off The waveform is not displayed. If the [Save Channel] setting is [Disp Ch], data

for the channel will not be automatically saved.

See: "4.2.2 Automatically Saving Waveforms" (p.88)

The waveform is displayed. Set the display color by clicking [  ] or [  ].

Probe On-Off

Switches the waveform display of the same probes to all ON or all OFF.

All On-Off Switches the display of all logic waveforms to all ON or all OFF.

This can be selected when the cursor at in the waveform display position item.

3.5 Input Channel Setting

The input channel settings can be set differently for each displayed sheet. Up to four sheets can be set.

You can set desired waveforms for displaying to different sheets and switch them.

You can configure the waveform calculation settings using the channel setting

window.

See: "3.5 Input Channel Setting" (p.73)

• When the standard logic display is on, the 8970 Freq Unit installed on unit 1 or 2 can no

longer be used. Furthermore, the 16-bit resolution 8967 TEMP Unit, 8968 High Resolu-

tion Unit, 8969 Strain Unit, U8969 Strain Unit, U8974 High Voltage Unit, and U8979

Charge Unit have a resolution of 12 bits. Also, when MR8990 Digital Voltmeter Unit is

installed on unit 1 (unit 1 or unit 2 in the case of MR8741), the standard logic can no

longer be used.

• With MR8740, install the logic units on unit 1 to unit 8. Even if you install logic units on

units 9 and after, they will be invalid.

3.5.4 Display Sheet

Sheet switching (1 to 4)

• Only the following display-related settings can be set to each displayed sheet.

Analog waveform: Display ON/OFF, waveform color, ratio, zero position,

graph variable (ON/OFF, upper and lower limit)

Logic waveform: Display ON/OFF, waveform color, display position, and

logic width

X-Y waveform: Display ON/OFF, waveform color, X ch, Y ch, waveform

calculation (X ch, Y ch)

Common setting: Display format

• The measurement-related settings other than above will be common to all dis-

played sheets.

When range is changed, the range of all display sheets is changed.

• When a settings file is saved, the settings of all displayed sheets are saved.

• A waveform file is saved based on the setting of the sheet displayed at the

time of saving. When a waveform file is loaded, only the sheet displayed at the

time of saving can be loaded because other sheets were not saved.