Response Electronics CL6011B Especificações Página 31

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4-1Input and Output Card
Original — December 1991 UM4.6:CS6003
4 Input and Output Card
This section describes the procedures for calibrating the:
DM6300-Series Input Cards
DM6400-Series Output Cards
4.1 Type DM6300-Series — Input Cards
The following subsections give the installation information for
DM6300-Series input cards.
4.1.1 Type DM6311 and Type DM6321 — Single-Ended
Analog Input Cards
The single-ended analog input card is available with one of two input
ranges: 1 to 5 volts dc and 0 to 10 volts dc. Depending on the
application, the Type DM6311 Analog Input card can use either card
version. The Type DM6321 Analog Input card uses only the 1 to 5 volt dc
version. The calibration procedure refers to the card versions (1 to 5 volt
and 0 to 10 volt) and not individual cards by type number.
4.1.1.1 Overview
Calibration of the single-ended analog input card consists of setting a
minimum and maximum voltage input level for all eight input current
levels. The 0 percent current input level is calibrated slightly above a true
zero current to allow for underranging. The SPAN potentiometer controls
the maximum level. Figure 4-1 shows the location of the ZERO and
SPAN potentiometers on the single-ended analog input current card.
4
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