
4-31Input and Output Cards
Original — December 1991 UM4.6:CS6003
Table 4-18. Weigh Scale Interface Card Scale Type Select Switch
Settings
Switch Position on S2
Scale Type 1 2 3 4
Toledo OFF OFF ON OFF
Masstron OFF OFF ON ON
BLH OFF OFF OFF ON
Special WSI OFF OFF OFF OFF
Step 4: Set the calibrator ON/OFF switch to OFF.
Step 5: Remove the weigh scale interface card.
4.2 Type DM6400-Series — Output Cards
The following subsections give the installation information for
DM6400-Series output cards.
4.2.1 Type DM6411 Analog Voltage and DM6421 Analog
Current Output Cards
The Type DM6411 Analog Voltage Output Card and the Type DM6421
Analog Current Output Card use different versions of the same card.
4.2.1.1 Overview
For both versions, calibration consists of setting a minimum and
maximum voltage output level for each of the four output channels and
testing linearity. The ZERO potentiometer controls the minimum level.
The 0 percent level is set at 1 volt. The SPAN potentiometer controls the
maximum level. The procedure for both card versions is identical except
that analog voltage outputs are measured across the calibrator breakout
terminals, while analog current outputs are jumpered to the calibrator
250 OHM LOAD terminals and measured across the load. Figure 4-10
shows the location of the ZERO and SPAN potentiometers for each
channel on an analog output card.
4
Komentarze do niniejszej Instrukcji