6-10 Calibration NetScan User’s Manual
Calibration of Signal Conditioning Cards

Offset Calibration of Cards

Required Equipment
- BNC Short for CSN14/LV/B cards, see note
- Terminal Type Short for CSN14/LV/T cards, see note
- Banana Plug Type Short for CSN14/LV/S cards, see note
- Type U Subminiature Plug Short for CSN14/TC/P cards, see note
Note: The four types of shorting connectors are illustrated later in this section.
With exception of the type of shorting connector, the offset calibration procedure is identical for each of the
following cards.
CSN14/TC/P CSN14/LV/S CSN14/LV/B CSN14/LV/T CSN14/HV/S
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The main unit (chassis) must be calibrated for offset and gain prior to calibrating the
signal conditioning cards.
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Do not install or remove any cards from the main unit, or from its expansion chassis unless
the unit is powered “OFF” and has no power sources connected to it.
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Use approved ESD precautions, including static-free work area and grounded wrist strap,
when handling circuit boards and electronic components. Failure to do so could cause
equipment damage due to electrostatic discharge.
1. Ensure the main unit is powered “OFF,” and has no power sources connected to it.
2. Remove the calibration card (used to calibrate the main chassis) from slot #1.
3. Install the signal conditioning card (which will be used during data acquisition) into slot #1.
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Do not perform calibration until after the ChartScan, or NetScan, and calibration
equipment have been powered on for at least one hour. The cards to be calibrated,
including those in an expansion chassis (if used), should be installed prior to the 1 hour
warm-up, and should be in the slots in which they will be used during data acquisition.
4. With all covers in place, allow the ChartScan, or NetScan unit to warm up (powered on) for at least 1
hour; also allow calibration equipment to warm up (powered on) for at least 1 hour.
5. Short-circuit the input channels that will be used for calibration (one calibration channel per card). The
following figure illustrates the four different types of shorting connectors.