This instrument allow the selection of two setpoints with two independent outputs for acid and alkaline dosages.

HI 8711 pH controllers are ideal for process control monitoring in a wide range of industrial applications.

These instruments have been edesigned with extended pH and temperature compensation ranges as well as BNC, amplified input and input from transmitter all in one instrument.

Each model accepts either a direct input from a pH or ORP electrode or from a transmitter through 4-20 mA input. The instrument also provides ±5V power output and input terminals for amplified electrodes.

Moreover, you can choose the output configuration for connecting a recorder or a PLC, between 0-20 or 4-20 mA.

The HI 8711 incorporates adjustable overtime dosing protection from 5 to 60 minutes. If dosing exceeds selected time, the alarm will be triggered and the dosing contact will deactivate. This feature can be activated or deactivated via a shorting connection on the rear panel.

The front panel is protected behind a transparent splash-proof cover.

• BNC, amplified input and input from transmitter in one instrument
• Dual setpoint with two independent dosing outputs
• Broader pH range: -2.00 to 16.00 pH
• Extended temperature compensation range: -0 to 100°C
• Supports potential matching pin connection
• Both 4-20 and 0-20 mA output user selectable, all in one instrument
• ±5V outputs for amplified electrodes
• Fail Safe function–the alarm relay is activated at power down
• Operational mode LED indicators
• Backlit LCD
• Transparent splash-proof cover included

Includes
The HI 8711 is supplied with mounting brackets and instructions.