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Comparison Guides 16

Fertigation Control Systems

Time/volume Irrigation control programs Irrigated sectors

Fertilization control by EC Fertilization control by volume pH correction EC probes

pH probes

Agitators control

Filter control,differential presostate

Solar radiation sensor

Temperature sensor

Control/mixing of water sources

Volum. counters

Tank level sensors

On/off dosing valves

Motorized dosing valves Pumps

Page

4 fertilizer, 1 acid/ alk., 1 mixing, 5 external

acid or alk.

HI8001/ HI8002 10 32 4

3 2 • 2 and 2 •

1 irrig.

•

1 irrigation 16.6

1 external, pH correction, 4 fertilizer, 3 incoming water

1 pH correction, 4 fertilizer

acid or alk.

1 irrig, 4 fert.

3 Irrigation, 1 fertilizer

HI8051 10 24 4

2 1

• 2 and 2

1

•

•

16.6

PCA Series Analyzers Process Instrumentation 16.2 | www.hannainst.com comparison guides Total and Free Chlorine pH ORP Temperature Logging Alarm PCA310 • PCA320 • PCA330 • PCA340 • • • • • • • • • • • • • • • • pH ORP Conductivity TDS Temperature Logging Alarm HI504 • • HI720 • pH502 • pH500 • • • • • mV600 • • • • HI700 HI710 • • • •

Swimming Pool Controllers

PC connection

Analog output

Password protection Page

Acid dosing

chlorine dosing pH

ORP

Temperature

Logging

Alarm

PC connection

Analog output

Password protection Page

• • • •

• • • •

• 16.10 • 16.10 • 16.10 • 16.10

BL120 • • • • • • • •

• 16.16

BL121

• • • • • • • • • • 16.16

Digital Panel Mount Controllers

(S)ingle or (D)ual setpoint ON/OFF control

Proportional control PID control

SSR relay

Digital output

(S)ingle or (D)ual Analog output Password protection Sensor Check™ S or D • • • 16.26

Automatic cleaning Page

• • • S or D • • • • S or D •

• •

RS485 S or D • • • 16.28

• S or D •

• • RS485

S S S S S

• • • • •

16.31 16.32 16.33 16.34 16.34

• S or D • •

RS232 RS232 RS485 RS485

S

• •

D D

• •

• •