Software 4

Configuration Parameter Settings

Channel

The input channel’s name (not editable)

 

AN1D = analog channel 1, differential input

 

AN1H = analog channel 1, single-ended high input

 

AN1L = analog channel 1, single-ended low input

 

Etc.

 

 

Nickname

You can specify the Nickname (e.g., Oven 1, Monitor

 

Room)

 

 

Units

You can specify the Engineering Unit. When switching

 

between voltage and thermocouple ranges, this will

 

automatically switch to the default units for that range.

 

However, any units label may be typed in here.

 

 

On/Off

To turn on or turn off the selected input channel

 

 

Single/Diff

You can select input channel as Single-ended or

 

Differential input.

 

 

Range

You can select the voltage input range or thermocouple

 

type for each input channel. Thermocouples must

 

always be used with Differential input.

 

 

Scale and

You can rescale the input signal. This scaled/offset

Offset

value will appear in all data displays, and in any saved

 

data files.

 

 

Sampling can be set in terms of “Scan Rate” or “Scan Time”.

Scan Rate = 1/(Scan Time).

For example, if you are acquiring 4 voltage inputs at 250 Hz, you will receive 250 complete scans per second. Meaning each channel will send 250 pieces of data every second, for a total of (4 x 250) = 1000 pieces of data.

The maximum scan rate is affected by the number of channels turned on. Selecting thermocouple input also lowers the maximum scan rate.

Figure 4-10. Scan Options

Figure 4-11. Units Options

Figure 4-12. Automatic Calibration

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Omega Engineering OM-DAQ-USB-2401 manual Configuration Parameter Settings