Hach BioTector B3500e, User Manual

Page: 119 / 163

Page 119
8.3.5 Output Devices
8.3.5.1 System Outputs
POWERED ALL TIME NO

POWERED ALL TIME parameter specifies if the relays are
powered all the time even if the system is stopped or paused
with the YES setting, or if the relay is powered only when
required with the default NO setting.
VALVE ACTIVATION SPF/SAMPLER

VALVE ACTIVATION determines the two possible times for the
multi-stream valve to change over for the next stream. If the
default SPF (SAMPLE PUMP FORWARD) option is selected,
the valve for the next stream is selected as the Sample Pump
starts to run forward to bring the sample from the next stream. If
SPR (SAMPLE PUMP REVERSE) option is selected, the valve
for the next stream is selected when the Sample Pump reverse
operation is completed for the current stream, or when the
BioTector powers up.

If SAMPLER is activated in Stream Program menu, SPF option
is displayed as SPF/SAMPLER.
OUTPUT 1-6

OUTPUT 1-6 menus typically contain internal output settings
related to system operation. These relay outputs, located on the
Motherboard, are system optional features.

STREAM 1 is always functional as default within the system
software. OUTPUT 4-6 menus are not displayed as they are
reserved for future use.

OUTPUT 1-6 relays are programmed to a single output function
or to multiple output functions if the relevant option has been
installed in the BioTector. The programmed output function or
functions are marked with an asterisk “*” sign in these menus as
in the example for OUTPUT 1, which is programmed for
MAINTANENCE SIGNAL and CALIBRATION SIGNAL below.

When multiple functions are programmed for an output relay, the
relay output is activated when one or multiple conditions are
initiated. In the example below, OUTPUT 1 is activated when
MAINTANENCE SIGNAL or CALIBRATION SIGNAL is
triggered.

In BioTector configuration data download (or in All Data
download), the programmed output functions for each output is
tabulated and marked with asterisk “*” signs for clarity.