HI-9910-2 Wall Mounted pH Controller information
Hanna's extended description
Industrial Grade pH Controller with Single Set point and Proportional Dosage
The HI-9910 time cycle is adjustable from 0 to 90 seconds and the proportional band from 0.0 to 2.0 pH. Coarse, fine, offset and slope trimmers make accurate setting and calibration easy and convenient. A pump or electro valve can be wired directly to the controller and be powered through the terminals.
The HI-9910 also provides for an alarm relay. The alarm is activated when the measurements stray away from the set point by a predetermined value in the 0.5 to 2.5 pH range. A maximum dosing time from 1 to 10 minutes can also be set, after which the alarm is activated to warn of an abnormality. The alarm can be configured in either normally-closed or normally-opened state. The HI-9910 also provides an isolated output signal which is user selectable between 0-20 or 4-20 mA. A dial on the front panel renders manual temperature compensation fast and easy.
For automatic temperature compensation, hook up a three wire Pt100 to the controller. To speed up wiring, the HI-9910 comes with extractable terminal modules. Once wired up, the compartment containing the connections is protected behind a fire-retardant ABS panel. Several LED's show whether the set point or alarm relays are activated from a distance.
BNC Connection – BNC is one of the most commonly used connector types in pH meters and electrodes. Compatible with any meter or electrode that uses BNC connectors.
Mains powered - All mains operated equipment is compatible with UK AC voltage and frequency – 230V, 50Hz.
Specifications
Specifications list
Specifications
| Range - pH | 0.00 to 14.00 pH | |
| Resolution | 0.01 pH | |
| Accuracy - pH | ±0.02 pH | |
| Input Impedance | 1012 Ohm | |
| Calibration | manual, 2 point, through trimmers on the front panel | |
| Temperature Compensation | Automatic from 0 to 50°C with Pt100 probe or manual from -10 to 80°C | |
| Setpoint | selectable from 0.00 to 14.00 pH | |
| Recorder Output | selectable at 0-20 mA or 4-20 mA (isolated) | |
| Proportional Control | adjustable from 0.0 to 2.0 pH and time cycle from 0 to 90 seconds | |
| Dosing Contact | 1 powered terminal for pH correction (115 or 240 V) Max. 2A, 1,000,000 strokes; activated when pH > setpoint for acid dosage or when pH < setpoint for alkaline dosage |
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| Alarm Relay | 1, activated when pH varies more than a selectable value (0.5 to 2.5 pH) from setpoint or when max dosage time (adjustable from 1 to 10 minutes) elapes (isolated, Max 2A-240 V, resistive load, 1,000,000 strokes) |
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| Power Supply | 110/115 Vac ±10% or 220/240 Vac ±10%; 50/60 Hz | |
| Environment | -10 to 50° (14 to 122°F); RH max 95% non-condensing | |
| Dimensions | 221 x 181 x 86 mm (8.7 x 7.1 x 3.4") | |
| Weight | 1.6 kg (3.5 lb.) |
Downloadable Manuals
Manuals
manHI_9910_9911_9920.pdfQuestions & Answers
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