Serinus 44 User Manual 3.0
4.4.3 Digital Status Inputs
The instrument is equipped with eight logic level inputs for the external control of the instrument
such as Zero or Span sequences. Each input has a terminating resistor which can be either PULL UP or
PULL DOWN. This is set using the jumper JP1 on the back panel PCA (refer to Figure 19).
4.4.4 Digital Status Outputs
The instrument is equipped with eight open collector outputs which will convey instrument status
condition warning alarms such as no flow, sample mode, etc. Two of the digital outputs can be set so
that there is +5V and +12V available on the 25 pin connector for control purposes, instead of digital
outputs 0 and 1.
In the default jumper locations (refer to Figure 19) these two outputs will function normally as open
collector outputs. If moved to the position closer to the 25 pin connector then the DO 0 will supply
+12V and DO 1 will supply +5V.
The +12V and +5V supplies are limited to about 100mA each.
Each digital output is limited to a maximum of 400mA. The total combined currents should not
exceed 2A.
Figure 19 – 25 Pin Rear Panel PCA (Default Jumpers Highlighted)
To Next Page
Loading...
