Chapter 3 measurement channels and alarms – Yokogawa Button Operated MV2000 User Manual
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3-1
IM MV1000-01E
Measurement Channels and
Alarms
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Index
Chapter 3
Measurement Channels and Alarms
3.1 Settng the Scan Interval and the A/D Converter
Integraton Tme
This section explains how to set the scan interval and the A/D converter integration time.
For an explanation of these functions, see section 1.2.
Dsplay
Press
MENU and then select Menu tab > Basc settng mode > Menu tab > A/D,
Memory.
Settngs
• Scan nterval>Scan mode
Normal: Measures at the normal mode scan interval.
Fast:
Measures at a scan interval of 25 ms (MV1004, MV1008, and MV2008) or
125 ms (MV1006, MV1012, MV1024, MV2010, MV2020, MV2030, MV2040,
MV2048). Fast sampling mode is not available on models equipped with
external input channels (/MC1). For details, see section 1.2.
• Scan nterval>Scan nterval
The selectable settings appear.
• Scan nterval>A/D ntegrate
When the scan mode is set to Normal, select an appropriate A/D integration time. Only
the selectable settings are displayed.
Settng
Descrpton
Auto
The MV automatically detects the power supply frequency and sets the integration
time to 16.7 ms for 60Hz and 20 ms for 50 Hz. The integration time is fixed at 20 ms
(50 Hz) if you are using a 12-VDC power supply.
50Hz
Sets the integration time to 20 ms.
60Hz
Sets the integration time to 16.7 ms.
100ms
Sets the integration time to 100 ms (when the scan interval is 2 s or 5 s).
600Hz
The A/D integration time for fast sampling mode. You cannot change this value.