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You are here: CX23-R Web Interface > Test configuration > Channel Setup > Analog Channels
Analog Channels
Analog channels are sourced from a MX1601B-R Standard Module or MX1615B-R Bridge Module.
Show common parameters
- Connector: A unique hardware identifier created by the system. To change the connector, remove the channel and re-add it using the correct connector.
- TEDS: For MX module channels with TEDS Sensors connected, an icon is displayed with the TEDS status.
- SDB: For MX module channels with HBM Sensor Databases applied, an icon is displayed with the SDB status.
- Name: The channel name must be unique and contain valid characters (invalid characters are single and double quotes, '\', '@', '#', '&', '<', '>').
- Description: Enter an optional detailed description of the channel.
- Collect: Select the Collect checkbox to write the channel data to the SIE data file during a test run.
- Sample rate: Set the desired channel sample rate. If the sample rate changes, all dependent computed channels and DataModes are changed automatically.
- Measurand: Enter an optional measurement type.
- Range min and max: Specify the expected extreme values of the channel. May be any real number.
- Reading: Current value of the channel. Show the readings by selecting the desired channels and clicking
Live update.
- Decimals: Set the desired decimal places for the channel reading value.
- Units: Physical units of measurement for the channel.
- Data type: The format of the channel data output.
- Input mode: Set the analog input mode from the possible transducer types for the MX1601B-R and MX1615B-R modules.
NOTE
For the Input mode Bridge quarter 3 wire (no sense lines), the signal conditioner has an inherent large offset (typically, -2 mV/V for 350 Ω and -6 mV/V for 120 Ω). The CX23-R internally compensates for this offset which significantly reduces the negative limit of the measurement range.
• For 350 Ω with 5.0 V excitation, the range is reduced from -4 to -2 mV/V.
• For 350 Ω with 2.5 V excitation, the range is reduced from -8 to -6 mV/V.
• For 120 Ω with 2.5 V excitation, the range is reduced from -8 to -2 mV/V.
• For 120 Ω with 1.0 V excitation, the range is reduced from -20 to -18 mV/V.
- Filter type: Set the type of filter for the channel to None, Linear phase (FIR), Butterworth (FIR), Butterworth (IIR) or Bessel (IIR).
- Filter frequency: Set the frequency of the selected filter. The options vary based on the filter type.
- Transducer power: Specify the unregulated transducer power voltage. The value be any real number within the hardware limits. For MX1601B-R channels 1-8, the value must be 5-24 V or zero. For MX1601B-R channels 9-16, the value must be 15-30 V to enable pass-through power or zero to disable pass-through power.
- Bridge ohms: For bridge-type input modes, specify the bridge leg resistance in ohms. For MX1615B-R channels, the value must be 90-5000 Ω. If the type is quarter bridge, the value must be 120 or 350 Ω.
- Leadwire ohms: For bridge-type input modes, specify the bridge leadwire resistance in ohms. The value may be any real number greater than or equal to zero.
- Excitation mode: For MX1615B-R channels, set the regulated excitation mode to DC or AC 1200 Hz square. If the input mode is quarter 3-wire (regulated) or potentiometer, the excitation mode must be DC.
- Excitation range: For MX1615B-R channel, specify the regulated excitation voltage range.
NOTE
To optimize the scaling accuracy of MX1615B-R bridge modes that support Internal Shunt Resistor Scaling, the CX23-R automatically uses the AC Excitation mode and the largest Excitation range available during sensor scaling. If necessary, the excitation mode and range revert to the user-defined values after shunt scaling is completed or canceled and the channel typically requires zeroing.