•
26
•
Fig. 13
6.0 - MICROCONTROLLED METERING PUMP WITH PH CONTROLLER
This unit is dosing pump with integral pH controller designed to measure, control and regulate the pH value.
The pump works on an ON/OFF system controlled by a microcontroller to stop dosing once the pH value reach-
es set point. Measuring range:0 ÷ 14 pH (resolution 0.01 pH)
6.1 - PUMPS CONTROLS (Fig. 13)
1 - Increasing values button (RIGHT)
2 - Calibration button
3 - Decreasing values button (LEFT)
4 - Red LED "GAIN"
5 - Red LED "ZERO"
6 - Yellow LED level alarm
7 - Red LED injection pulse
8 - Green LED power supply
9 - LCD display
10 - Setpoint regulation button
11 - Function selection button
6.2 - TYPICAL INSTALLATION (Fig. 14)
A Injection
valve
B Power
supply
C Filter
E Electrode
I Chemical
tank
P Electrode
holder
V Process
tank
6.3 - ACCESSORIES
• 1 flexible PVC suction hose;
transparent crystal type, length 2 m;
• 1 semirigid polyethylene hose, white, length 2 m;
• 1 injection valve 3/8 BSP m;
• 1
filter;
• 1 instructions/operating booklet.
Fig. 14
DLX-pH/M • DLXB-pH/M
1
2
3
6
7
8
4
5
9
10
11
