HANNA 981402C On-line pH Monitor for CO2 Dosing Control Instruction Manual

This manual introduces the use and precautions of HI981402C pH online monitor.

Brand: Hanna Instruments
Category: Other
Document type: User Manual
Language: English
Pages: 2
File format: PDF
File size: 616 KB
Published: 10 July, 2012
Updated: 30 September, 2023
MD5 checksum: 44426B563A76A5D51E602CB0D920627C
PDF: HANNA 981402C On-line pH Monitor for CO2 Dosing Control Instruction Manual PDF

About this manual

The Hanna Instruments HI 981402C is an accurate and safe instrument designed to dose CO2 in planted aquariums based on pH measurement. It operates using 12 Vdc power to prevent electric shock risks and is ideal for controlling CO2 levels and flow by monitoring pH values. When the measured pH exceeds a user-selectable setpoint, the instrument activates a magnet valve to stop dosing.

What's inside

Warranty
Functional Description
Specifications
pH Electrode Connection
Taking Measurements
Calibration
Adjusting the Setpoint
Accessories

Specifications

Range	0.0 to 14.0 pH
Resolution	0.1 pH
Setpoint Range	5.0 to 8.0 pH
Hysteresis	0.1 pH
Output	12 Vdc/500 mA
Casing Protection	IP54
Dimensions	85 x 94 x 33 mm
Weight	160 g

Frequently asked questions

What is the factory setpoint value?

The factory setting for the setpoint is 6.1 pH.

How often should the instrument be calibrated?

It is recommended to calibrate the instrument at least once a month.

What happens when the pH exceeds the setpoint?

The red alarm LED blinks and the power contact output activates to drive an external magnet valve.

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