BL-7916-2 PH CONTROLLER AND PUMP
BL-7916-2
Isolated 4 to 20 mA recorder output.
pH controller and dosing pumps in one compact unit.
- ±0.01 pH accuracy with unbeatable performance.
- Isolated 4 to 20 mA recorder output.
Proportional dosing slows the pump down when the measured pH level approaches the set valve which ensures precise dosage and avoids costly waste of chemicals due to over dosage.
Alarm contact is activated whenever the pH value varies more than 2 pH units from the set point.
Auxiliary contacts allow the user to attach a mixer or priming pump that is activated only when the pump is dosing.
High Quality materials are used for all parts that come into contact with liquid.
Order Information:
The BL 7916 series is supplied with discharge and suction valves, polyethylene tubing, power cable and instructions.
| Range | 0.00 to 14.00 pH | |
| Resolution | 0.01 pH | |
| Accuracy | pH | ±0.01 pH |
| Flow Rate | 13.3, 11.7, 10.1, 9.0, 7.8 (LPH) | |
| Input Impedance | 1012 Ohm | |
| Dosage | proportional, acid or base, user selectable | |
| Calibration | offset: ±1 pH with trimmer; slope: 85 to 115% with trimmer | |
| Recorder Output | 4-20 mA (isolated) | |
| Dosing Contact | 1 isolated contact, 2A, Max. 240V, resistive load, 1,000,000 strokes | |
| Alarm Contact | 1 isolated contact, 2A, Max. 240V, resistive load, 1,000,000 strokes | |
| Power Supply | See Chart | |
| Environment | 0 to 50°C (32 to 122°F); RH max 95% non-condensing | |
| Dimensions | 181 x 221 x 142 mm (7.1 x 8.7 x 5.6") | |
| Weight | 5 kg (11 lb.) |
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