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Four chlorine level setpoints can be adjusted by the operator: a proportional dosing setpoint, two alarm
setpoints and a minimum level for dosing. The proportional dosing factor (1/∆ is user selectable with
a delta between 0.1 and 5.0 mg/L (ppm)). Chlorine dosing system controls a SPST relay.
Each chlorine alarm can be enabled or disabled.
Three pH level setpoints can be adjusted by the operator: a dosing setpoint and two alarm setpoints.
The pH control mode is user selectable: on/off or proportional dosing.
The proportional dosing factor (1/∆) is user selectable with a delta between pH 0.1 and 2.0 . The
on/off dosing hysteresis is user selectable between pH 0.05 and 2.00.
pH dosing system controls a SPST relay.
Each pH alarm can be enabled or disabled.
For temperature and ORP, two alarm levels can be set by the user.
Each temperature or ORP alarm can be enabled or disabled.
Alarm condition controls a SPDT relay.
A system error feature provides relay activation to signals need for operator intervention.
System error condition controls a SPST relay.
For PCA310 - PCA330 series the voltage output ranges of 0-10 mV, 0-100 mV, 0-1 V or a current
output of 4-20 or 0-20 mA are available to drive an external device such as a chart recorder.
The analyzer can drive a proportional dosing pump through the 4-20 mA output, for chlorine or for
acid/alkali dosing.
PCA340 has two current outputs of 4-20 or 0-20 mA are available to drive external devices such as
chart recorders.
The analyzer can drive two dosing pumps through the 4-20 mA outputs for chlorine and for
acid/alkali dosing.
The analog output is fully programmable and could be proportional with chlorine concentration, pH,
ORP or temperature value. The limits of the analog output is selectable for each parameter.
The analyzer can store up to 3500 readings (at least 7 days at 3 minutes sampling interval), that are
available for consulting or downloading.
The PCA310 - PCA340 analyzers can be monitored or controlled through RS485 or GSM network
connection.
Errors, alarms and warnings are sent through SMS (using GSM module HI504900).
The analyzer state can be interrogated by a simple call using GSM phone.
GENERAL DESCRIPTION
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General
