Omega Engineering OMB-NETSCAN, Руководство пользователя

Страница: 113 / 256

NetScan User’s Manual Calibration 6-15
Gain Calibration of High Volts Cards
Required Equipment*
- Volts DC Calibrator
- 22-2 Twisted pairs (to connect calibrator to calibration card)
- Banana Plug Type Harness for CSN14/HV/S see note
- Digital Voltmeter or Digital Multimeter (used for verification of calibration voltages)
*
see required specifications on page 6-2
Note: The harness for CSN14/HV/S is illustrated later in this section.
:$51,1*
High voltage potentials exist which could cause serious injury or death. Observe proper
electrical safety precautions throughout this procedure.
&$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.
1. Connect a harness to the CSN14/HV/S card and to the calibrator. Refer to the following figure.