MR8740T_user_manual_eng_20191016H.pdf - 第52页
47 Conguring Measuring-Module-Specic Settings Conguring Model 8967 T emp Unit settings > [Channel] > [8967] 1 2 3 4 5 6 1 Click the [Mode] box, and then choose a thermocouple type from the list. Choose an option…
46
Conguring Measuring-Module-Specic Settings
3.6 Conguring Measuring-Module-Specic
Settings
You can congure advanced settings for each module.
Conguring Model 8968 High Resolution Unit settings
> [Channel] > [8968]
1
Click the area that includes [A.A.F].
The [A.A.F.] setting dialog box appears.
2
Click the [A.A.F.] box, and then choose [On] or [Off] from the list for the anti-aliasing lter
setting.
Enabling the anti-aliasing lter prevents aliasing distortion from inuencing FFT calculations.
The cutoff frequency changes automatically according to the sampling rate setting.
Off
Disables the anti-aliasing lter.
On Enables the anti-aliasing lter.
(Disabled when the external sampling is used, or the sampling rate is set at 100 kS/s
or faster)
3
Click [Close].
The setting dialog box closes.
47
Conguring Measuring-Module-Specic Settings
Conguring Model 8967 Temp Unit settings
> [Channel] > [8967]
1
2
3
4
5
6
1
Click the [Mode] box, and then choose a thermocouple type from the list.
Choose an option depending on the type of a thermocouple to be used.
Mode Measurable range Mode Measurable range
K
−200°C to 1350°C R 0°C to 1700°C
J −200°C to 1100°C S 0°C to 1700°C
E −200°C to 800°C B 400°C to 1800°C
T −200°C to 400°C W 0°C to 2000°C
N −200°C to 1300°C
2
Click the area that includes [RJC].
The setting dialog box appears.
3
Click the [RJC] box, and then choose between [Int.] and [Ext.] from the list for reference
junction compensation.
Int.
Executes the reference junction compensation inside the module.
(Measurement accuracy: The sum of the accuracy of the temperature measurement
and that of the reference junction compensation)
Ext. Does not execute the reference junction compensation inside the module.
(Measurement accuracy: The accuracy of the temperature measurement only)
When connecting a thermocouple directly to the module, choose [Int.].
When connecting a thermocouple via a reference junction device that includes a zero-point bath, choose [Ext.].
3
Advanced Functions
48
Conguring Measuring-Module-Specic Settings
4
Click the [Burn out] box, and then choose between [On] and [Off] from the list for the wire
break detection setting.
You can detect a broken thermocouple wire during temperature measurement. If a thermocouple wire breaks,
measured values will uctuate.
Off
Does not check wires for a break.
On Check wires for a break by owing about a minuscule current of 100 nA through the
thermocouple.
If the thermocouple wires are long or have a relatively high resistance, set [Burn out] to [Off] to avoid
measurement errors.
5
Click the [Data update] box, and then choose a data update interval from the list.
Fast Updates data about every 1.2 ms.
Choose this option for a quicker response. However, choosing this option causes some
increase in noise superimposed on input signals.
Normal
Updates data about every 100 ms.
Choosing this option eliminates noise, leading to stable measurement.
Slow Updates data about every 500 ms.
Choosing this option leads to stabler measurement.
6
Click [Close].
The setting dialog box closes.