Hanna Instruments-8711 pH Analogue Controller with dual output and self-diagnostic test.
Hanna Instruments-8711 allows the selection of two set points with two independent outputs for acid and alkaline dosages.
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. In addition, you can choose the output configuration for connecting a recorder or a PLC, between 0-20 or 4-20 mA.
The Hanna Instruments-8711 incorporates adjustable overtime dosage 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.
A removable, transparent splash-proof cover protects the front panel.
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