Output Devices - Hach BioTector B7000 User Manual

PRESSURE CHCK FAULT
PRESSURE CHCK COUNT
FLOW WARNING

Output Devices

RELAY 17
RELAY 18
RELAY 19
6.0l/h  At the end of each reaction during operation, BioTector
 The pressure check cycle can be disabled by setting the
 If the flow measured during the pressure check is greater than
3  PRESSURE CHECK COUNT defines the number of consecutive
 If the flow measured during the pressure check is greater than
 Each time BioTector is started up and everyday during online
72.0l/h
 If the measured flow is less than the programmed FLOW
 In TC – TIC systems, BioTector generates a "24_TIC FLOW
MANUAL 1  RELAY 17 is a freely programmable system relay (24V DC
 RELAY 18 is a freely programmable system relay (VOLT FREE
ALARM
 RELAY 19 is a freely programmable system relay (VOLT FREE
---
automatically pressurizes the system with oxygen gas and uses
its mass flow controller to detect any gas leak in the system. If
the measured flow is less than or equal to the programmed
PRESSURE CHECK FAULT flow level (6.0 l/h by default) during
the test, the pressure check passes. The PRESSURE CHECK
FAULT acts a safety function, to ensure that there is no gas leak
in the system and it is safe to start the next analysis reaction.
PRESSURE CHECK FAULT to 0.0 l/h. When disabled,
BioTector automatically displays an "OFF" message on the
screen.
the programmed PRESSURE CHECK FAULT level (greater than
6.0 l/h), for the number of consecutive reactions programmed by
the PRESSURE CHECK COUNT below, the pressure check
fails, and BioTector generates a "06_PRESSURE CHCK FAIL"
fault and stops. This fault is logged in the fault archive.
reactions (3 by default) before a "06_PRESSURE CHCK FAIL"
fault is triggered.
the programmed PRESSURE CHECK FAULT level above
(greater than the default 6.0 l/h setting) for the number of
consecutive PRESSURE CHECK COUNT reactions (3 by
default), the pressure check fails, and BioTector generates a
"06_PRESSURE CHCK FAIL" fault and stops. This fault is
logged in the fault archive.
operation at the programmed TIME above, oxygen gas flows
through the system and mass flow controller is used to detect
any blockage in the system. If the measured flow is greater than
or equal to the programmed FLOW WARNING level (72.0 l/h by
default), the flow test passes.
WARNING setting, the flow test fails, and BioTector generates a
"22_FLOW WARNING - EX" or "23_FLOW WARNING - SO" in
the fault archive and continues to run. This warning is logged in
the fault archive.
WARN - EX" or "25_TIC FLOW WARN - SO" if TIC reactor flow
test fails.
OUTPUT with a maximum output current of 750mA). The default
setting of Relay 17 is MANUAL 1.
CHANGEOVER CONTACT with a current rating of 1Amp at 30V
DC). The default setting of Relay 18 is ALARM.
CHANGEOVER CONTACT with a current rating of 1Amp at 30V
DC). It is not programmed (---) by default.
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