Ch0x view parameters - 5094-IY8(XT)

Ch0x view parameters - 5094-IY8(XT)

The
Ch0x
view includes these parameters:
Parameter
Description
Disable Channel
Determines whether the channel is disabled. Disable channels to prevent erroneous fault reporting, such as no load or open wire faults, and to prevent the FLT LED for that channel from illuminating.
Input Type
Sets the input type for the channel. Available options are:
  • Voltage (V)
  • Current (mA)
  • RTD
  • Thermocouple
Wiring
Sets the wiring configuration for the channel if the
Input Type
is Current or RTD. Available options are:
Input Type as Current (mA):
  • Differential
  • Single-Ended
Input Type as RTD:
  • 2-Wire
  • 3-Wire
  • 4-Wire
Sensor Type
Sets the sensor type for the channel if the
Input Type
is RTD or Thermocouple.
Input Range
Sets the input range for the input type. Ranges vary according to the selected
Input Type
. Input range values are as follows:
Input Type set to Voltage (V):
  • -10V to 10V
  • 0V to 5V
  • 0V to 10V
Input Type set to Current (mA):
  • 0mA to 20mA
  • 4mA to 20mA
Input Type set to RTD:
  • 1 ohm to 500 ohms
  • 2 ohms to 1000 ohms
  • 4 ohms to 2000 ohms
  • 8 ohms to 4000 ohms
Input Type set to Thermocouple:
  • -100mV to 100mV
When
Input Type
is set to
RTD
and the
Sensor Type
is
ohms
, determines an input range. For maximum resolution, choose the range that most closely accommodates the anticipated maximum resistance value.
When
Input Type
is set to
RTD
and the
Sensor Type
is not
ohms
, shows the resistance range used by the device for optimal performance based on the selected RTD type. These ranges are read only and cannot be changed.
Temperature Units
Sets the temperature unit when the
Sensor Type
is not set to ohms (for RTD) and not set to mV (for Thermocouple).
10 ohms Copper Offset
For an RTD input type with
Sensor Type
set to
10 ohms CU 427
, sets an offset value that is within the range from -1.00 through 1.00 ohm.
This value can compensate for any Copper RTD errors and is added to the input reading before linearization.
Cold Junction Compensation
Shows whether the channel is using the internal sensor or a remote termination for compensation, or compensation is disabled.
If the channel is being used as a remote termination for another channel, a message is shown instead.
Applies only when the
Input Type
is set to RTD or Thermocouple.
Remote CJ Ch
Sets the channel as remote termination. When selected, InputSSVSwitchEN is disabled.
Enable Input SSV Switch
Select when using 2-wire current transmitter that is powered from Sensor Source Voltage (SSV). This shorts the analog input channel and analog common ground to avoid the need to install an additional jumper wire on the terminal.
Engineering Units
Sets the unit of measure used for the channel.
High Signal
Sets one of the four constants in the scaling equation.
High Signal
is in terms of the input signal units and corresponds to
High Engineering
when scaled.
High Signal
must be greater than
Low Signal
.
High Engineering
Sets one of the four constants in the scaling equation.
High Engineering
corresponds to
High Signal
and helps determine the engineering units that the signal values scale into.
Low Signal
Sets one of the four constants in the scaling equation.
Low Signal
is in terms of the input signal units and corresponds to
Low Engineering
when scaled.
Low Engineering
Sets one of the four constants in the scaling equation.
Low Engineering
corresponds to
Low Signal
and helps determine the engineering units that the signal values scale into.
Notch Filter
Sets the notch filter value, which attenuates the input signal at the specified frequency. Notch filter is based on what noise frequencies are present in the device’s operating environment versus any speed requirements needed for control.
Digital Filter
Sets the time constant for a first order lag filter used to smooth noise transients on the input with a range from 0 through 32767. When set to 0, no filtering takes place.
Enable Open Wire Detection
Enables the detection of disconnected wiring from the signal source to the RTB or the RTB to the device.
Diagnostics
Opens the diagnostics dialog box to view the diagnostics information for the channel.
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