Omega Engineering OMB-NETSCAN, Руководство пользователя

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6-12 Calibration NetScan User’s Manual
Gain Calibration of Low Volts Cards
Required Equipment*
- Volts DC Calibrator
- 22-2 Twisted pairs (to connect calibrator to calibration card)
- BNC Harness (for CSN14/LV/B cards), see note
-Terminal Type Harness for CSN14/LV/T cards, see note
- Banana Plug Type Harness CSN14/LV/S cards, see note
-Type U Subminiature Plug Harness for CSN14/TC/P cards, see note
- Digital Voltmeter, or Digital Multimeter
*
see required specifications on page 6-2
Note: The four types of harnesses are illustrated later in this section.
With exception of the type of harness (see following figure), the gain calibration procedure is identical for
each of the following cards.
CSN14/TC/P CSN14/LV/S CSN14/LV/B CSN14/LV/T
Reference Note: For gain calibration of the
CSN14/HV/S
card, refer to the section entitled,
Gain Calibration for High Volts Cards, beginning on page 6-15.
&$87,21
The main unit (chassis) must be calibrated for offset and gain; and the signal
conditioning cards must be calibrated for offset prior to calibrating the signal
conditioning cards for gain.
&$87,21
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.
&$87,21
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.
&$87,21
Do not perform calibration until after the main unit 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.