Hach BioTector B7000i - Page 132

Page 132
SERVICE COUNTER 180 DAYS
 SERVICE COUNTER (180 days by default) specifies the
number of days the system operates before triggering an
“83_SERVICE TIME” warning.
 Note that the service counter keeps operating and decreases the
count by a day if system is powered up during the same day
even though system was not running. Because the default
factory setting is a typical value for normal site conditions, the
service interval may need to be adjusted according to specific
site conditions.
OZONE TEST TIME 18s
 OZONE TEST TIME defines the programmed time which passes
the Ozone Test in Process Test, Ozone Test menu. The
maximum time the ozone generator remains on during the
Ozone Test is 60 seconds.
SAMPLE STATUS 5s , 75%
 The first parameter in SAMPLE STATUS setting is the sample
detection time (5 seconds by default) BioTector processes the
output of the Sample Sensor. When the parameter is set to 0s
(zero seconds), the sample detection is switched off. The
second parameter (75% by default) is the % sample quality
threshold, which is used to activate SAMPLE STATUS output.
 Sample Status output is activated (energized) when BioTector
Sample Sensor detects no sample or when the sample quality is
less than the default 75% threshold value (i.e. when there is
significant quantity of air bubbles in the stream/manual grab
sample lines).
 Sample Status output is set/reset as soon as the Sample Sensor
signal is processed. Sample Status holds its state between
reactions and when system is stopped or put into standby mode.
ARCHIVE NO
 In systems built with Sample Sensor, if SAMPLE STATUS
ARCHIVE function is programmed as “YES”, the
“116/117/118/119/120/121 LOW/NO SAMPLE 1/2/3/4/5/6”
notification events are generated and logged into the Fault
Archive when there is no or low sample liquid in the
corresponding streams from stream 1 to stream 6.
AUTO RESET NO
 If SAMPLE STATUS AUTO RESET function is programmed as
“YES”, the corresponding “116/117/118/119/120/121 LOW/NO
SAMPLE 1/2/3/4/5/6” notification events are automatically
acknowledged in the Fault Archive depending on the sample
status of the relevant streams from stream 1 to stream 6.
 In multi-stream systems, the Sample Status relay output signal is
a common signal, which is activated/deactivated when the
sample quality is determined by the BioTector Sample Sensor
for any of the streams during analysis.
SAMPLE FAULT 1 1000s
SAMPLE FAULT 2 1000s
SAMPLE FAULT 3 1000s
…………………………………… …
SAMPLE FAULT 6 1000s
 SAMPLE FAULT 1-6 defines the stream specific programmable
output time delay (1000 seconds by default), which delays the
activation of the SAMPLE FAULT 1-6 output signals and logging
of the “122/123/124/125/126/127 SAMPLE FAULT 1/2/3/4/5/6”
notification events into the fault archive. The purpose of the time
delay is to prevent unnecessary generation of the sample fault
signals if the sample fault only occurs for a very short time.
AUTO RESET NO
 SAMPLE FAULT AUTORESET determines whether the
“122/123/124/125/126/127 SAMPLE FAULT 1/2/3/4/5/6”
notification events are automatically acknowledged by the
system (with the “YES” setting) or to be acknowledged manually
from the BioTector keyboard (with the “NO” setting by default).
TEMPERATURE ALARM 45.0C
 TEMPERATURE ALARM represents the BioTector ambient
temperature alarm level (45°C by default).
 If BioTector temperature is higher that the set level for more than
120 seconds, a “53_TEMPERATURE ALARM” warning is
logged into the fault archive.