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Designed to maintain constant pH and disinfectant levels in swimming pools, hot tubs, and spas, the BL122, and BL123 pH and ORP controller offers the added benefit of allowing remote connection and access to devices via the Hanna Cloud web app.
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Equipped with two peristaltic dosing pumps with replaceable chemical resistant tubing that are proportionally controlled with adjustable flow rates.
Adjust the proportional band based on the sensitivity of your process to chemical addition, finetuning the amount of time that the pumps are dosing.
The dosing pump flow rate is adjustable from 0.5 to 3.5L/h, allowing for better control in maintaining a desired set point.
Hanna Cloud is a web-based application that connects you to measurement devices such as the BL122 and BL123. Measurements and data storage are accessible from your PC, tablet or phone. Measurements, trends, history, device settings, alarms, and messages are transmitted to your “Dashboard” as your instrument measures and controls your process.
Measurement & Graphing
Good Laboratory Practices (GLP)
Notifications
Select which notifications you would like to receive. Multiple secondary users may also be added to your device account to monitor measurements and receive email or pop-up messages from your process device.
| Specification Name | Detail |
| Product name | pH and ORP controller BL122/BL123 |
| pH Range | 0.00 to 14.00 pH |
| pH Resolution | 0.01 pH |
| pH Accuracy (@25°C/77°F) | ±0.05 pH |
| pH Dosing | proportional with adjustable set point and proportional band; delay to start at power-on and overdosing protection |
| ORP Range | ±2000 mV |
| ORP Resolution | 1 mV |
| ORP Accuracy (@25°C/77°F) | ±5 mV |
| ORP Dosing | proportional with adjustable set point and proportional band; delay to start at power-on and overdosing protection; pH dosing interlocked |
| Temperature Range | -5.0 to 105.0°C (23.0 to 221.0°F) |
| Temperature Resolution | 0.1°C (0.1°F) |
| Temperature Accuracy (@25°C/77°F) | ±1°C (±1.8°F) |
| Temperature Compensation | automatic, -5.0 to 105.0°C (23.0 to 221.0°F) for pH |
| Calibration | pH buffer calibration: automatic, two-point (4.01, 7.01, 10.01 pH) pH process calibration: one-point, manual input |
| Pump Control | automatic and manual modes; adjustable flow rate from 0.5 to 3.5 L/h |
| Log Feature | automatic logging of pH, ORP, and temperature measurements, GLP and events including alarms, errors and power failure; capacity for 60 days with 10 second sampling interval; all data .csv files are transferred by USB flash drive |
| Alarms | high and low with enable/disable option for all parameters; alarm is triggered when 5 consecutive readings are over/under threshold |
| Alarm System | intuitive alert system based on LEDs; alarm filtering options; alarm relay control based on user setup |
| Password Protection | setup, calibration and log recall options features are password protected |
| Connectivity | USB |
| GLP | pH/ORP calibration information including date and time for pH/ORP sensors |
| Alarm Relay Output | SPDT 5A/230 VAC; activated by pH/ORP/temperature selectable alarm conditions |
| Analog Outputs | 4 to 20 mA, sourcing, configurable; output impedance ≤ 500 Ohm; accuracy < 0.5 % FS; galvanically isolated up to 50 V relative to earth ground |
| Auxiliary Inputs | low level in acid/base tank (contact open); low level in chlorine tank (contact open); hold input (contact open) |
| Digital Probe Input | galvanic isolated digital input HI1036-1802 pH/ORP/temperature/matching pin combined probe with DIN waterproof connector |
| Power Supply | 100 — 240 VAC |
| Power Consumption | 10 VA |
| Environment | 0 to 50°C (32-122°F); max 95% RH non-condensing |
| Dimensions | 245 x 188 x 55 mm (73 mm with pumps); 9.6 x 7.4 x 2.2” (2.9” with pumps) |
| Weight | 1700 g (60 oz.) |
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All prices are VAT excluded and without shipping costs, unless otherwise stated.
Hanna Service d.o.o. — Sermin 75H, Bertoki — 6000 Koper (Slovenia) — VAT ID SI92346669
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