Hach BioTector B3500s User Manual page 86

1. MFC. Use this function to set the MFC (Mass Flow Controller) setpoint. Press the ENTER key, set the
required setpoint (e.g. 60 l/h), and press the ENTER key again. The actual flow is shown at the top of the
screen. An "*" is shown when the MFC has been activated. If the flow is 0.0 l/h, then the MFC is switched
off.
2. Ozone Generator. Use this function to test the Ozone Generator. To change the state of the device,
press the ENTER key, set the device to ON/OFF, and press the ENTER key again. If the device is on, it
will be marked with an "*". As a safety feature, when the Ozone Generator is switched on, a Pressure
Test procedure is executed automatically to detect any gas leakage in the system. If this test fails then
the Ozone Generator will not be switched on. See Section
Pressure/Flow Test Program
current drawn, which is ~1.00 Amp, is displayed. If the current drops below 0.5 Amp, BioTector generates
a "102_OZONE GEN FAULT" warning.
WARNING
3. Ozone Generator Fan. This function displays the Ozone Generator Fan operation and voltage. When it is
ON, the voltage displayed is typically 2.5 Volts. If the voltage drops below 1.5 Volts, or exceeds 3.5 Volts
for longer than 5 seconds, BioTector generates a "103_OZONE FAN FAULT" warning.
4. Acid Pump. Use this function to test the Acid Pump. To turn the pump on, press the ENTER key, and
select ON. Press the ENTER key again, input the number of pulses, press the ENTER key and the pump
will run. When the pump is running the actual pulse time is displayed outside the brackets. The
programmed pulse time is displayed inside the brackets. The pump will stop when the required number of
pulses is complete, or to manually stop the pump, press ENTER, select OFF, and press ENTER again.
5. Base Pump. Use this function to test the Base Pump. To turn the pump on, press the ENTER key, and
select ON. Press the ENTER key again, input the number of pulses, press the ENTER key and the pump
will run. When the pump is running the actual pulse time is displayed outside the brackets. The
programmed pulse time is displayed inside the brackets. The pump will stop when the required number of
pulses is complete, or to manually stop the pump, press the ENTER key, select OFF, and press the
ENTER key again.
6. Sample Pump. Use this function to test the Sample Pump. The pump has four operating states: FWR
(forward), REV (Reverse), P-FWR (run under pulse control forward), P-REV (run under pulse control in
reverse). To run the pump in the required mode, press the ENTER key, and select that mode. If P-FWR
or P-REV is selected, enter the number of pulses (½ revolutions), press the ENTER key and the pump will
run. When the pump is running, the actual pulse time is displayed outside the brackets. The programmed
pulse time is displayed inside the brackets. The pump will stop when the required number of pulses is
complete, or to manually stop the pump, press the ENTER key, select OFF, and press the ENTER key
again.
When Acid, Base and/or Sample Pumps are activated, depending on the quantity of the liquid injected
into the reactor and due to an internal system interlock, the system may request the activation of Reactor
Purge cycle to purge any excess liquid from the reactor.
7. Reactor Motor. Use this function to test the Reactor Motor. To change the state of the device, press the
ENTER key, set the device to ON/OFF, and press the ENTER key again. If the device is on, it will be
marked with an "*".
for details on Pressure Test. When Ozone Generator activated, the
Ozone will be generated when the Ozone Generator is turned on.
8.1.1.1 Pressure Test and Section 8.3.4.5
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