Set Measuring Mode - Omega Engineering OMB-CHARTSCAN 1400 User Manual

API Commands
TYPE
EXECUTION
SYNTAX
DESCRIPTION
The Set Measuring Mode (
ChartScan/1400 units:
Normal Mode (for Line Cycle Integration and High-Speed Multi-Channel applications). Normal mode is the
system default. In this mode each channel is averaged over a selected number of samples as specified with the
Set Averaging Weight (
automatically enable line cycle noise rejection.
Thermocouples and DC Volts are averaged over the specified number of samples. For AC Volts, the root mean
square (RMS) is computed over the specified number of samples.
High-speed, Single-Channel Mode (Burst mode) is used to sample a single channel at a frequency specified
by the Set Frequency (
blocks specified by the Set Counts (
Refer to Measuring Mode section of Appendix B for more detailed information.
EXAMPLES
PRINT#1, "OUTPUT07;M#0X"
PRINT#1, "OUTPUT07;W#32X"
PRINT#1, "OUTPUT07;Y0,10,0"
PRINT#1, "OUTPUT07;C1-3,1X"
PRINT#1, "OUTPUT07;T1,8,0,0X"
PRINT#1, "OUTPUT07;@X"
PRINT#1, "OUTPUT07;M#1X"
PRINT#1, "OUTPUT07;F#10000.0X"
PRINT#1, "OUTPUT07;Y0,4096,0"
PRINT#1, "OUTPUT07;C1,26X"
PRINT#1, "OUTPUT07;T1,8,0,0X"
PRINT#1, "OUTPUT07;@X"
A-42

- Set Measuring Mode

M#
System
Deferred
Specify measuring mode. Valid options for
M#mode
integration / high-speed multi-channel mode, and
speed burst mode.
) command selects one of the two internal measuring modes supported by the
M#
) command. As there are 32 samples per line cycle, 32, 64, 128, or 256 samples will
W#
) command. The channel is sampled in blocks of 256 readings, with the number of
F#
) command.
Y
' Select Line Cycle Integration/High-Speed Multi-Channel Mode
' Select number of samples = 32
' Setup to read 10 post trigger scans
' Enable channels 1 - 3 for Type J thermocouples
' Arm the unit
' Trigger unit and collect scans
' Select Single Channel High-Speed Burst Mode
' Set sampling frequency = 10 KHz
' Set count to take 1 MB's worth of samples
' Select channel 1 for reading 250 Volts AC samples
' Arm the unit
' Trigger unit and collect scans
Appendix A
are: - Line cycle
mode 0
- Single channel high-
1
ChartScan User's Manual