HANNA BL121 pH/ORP swimming pool dedicated controller DATASHEET
| Brand | HANNA | Model | BL121 |
|---|---|---|---|
| From | Name | pH/ORP swimming pool dedicated controller |
Specifications
| Range-pH | 0.00 to 14.00 pH |
| Resolution -pH | 0.01 pH |
| Accuracy @25 ℃/77 ° F-pH | ±0.05 pH |
| Calibrated -pH | Acidity measurement calibrate: Manual calibration acidity pH buffer calibrate: two points automatic identification calibrate, built-in standard points: 4.01, 7.01, 10.01 pH |
| Resolution -ORP | 1 mV |
| ' '25oC/77oF-ORP' | ± 5 mV |
| Calibrate | Manual calibration |
| Accuracy - temperature | ±1℃（±1.8ºF） |
| Temperature compensation | Automatic temperature compensation -5.0 to 105.0 ℃ (23.0 to 221.0 ° F) |
| Pump Control | Automatic and manual modes; Flow rate adjustable from 0.5 to 3.5 L/h |
| recording function | All data.csv files are transferred via USB flash drive to automatically record pH, ORP and temperature measurements, GLP and events including alarms, errors and power failures, store data for 60 days, Data Logging interval of 10 seconds |
| alert | Triggered when 5 consecutive readings exceed/fall below the set value |
| password protection | Settings, calibrate and log call option features are all password protected by user settings |
| connect | USB |
| GLP | Automatic recording of acidity pH/oxidation reduction ORP electrode calibrated, date and time information |
| alert output | SPDT 5A/230 VAC activated by pH/ORP/temperature optional alarm conditions |
| analog output | 4 to 20 mA output configuration; Output Impedance ≤ 500 ohms Accuracy < 0.5% FS, up to 50 V relative to isolation current |
| auxiliary input | Low level in acid/alkali tanks (open contact) Low level in chlorine tanks (touchpoint open); hold input (touchpoint open) |
| Electrode | Composite electrode HI1036-1802 |
| Power | AC100-240V |
| Power | 10VA |
| Applicable environment | 0-50°C |
| Size/Weight | 245 x 188 x 55 mm(73 mm) 1700 g (60 oz) |
Packing list
machine X1, manual X1, certificate X1, warranty card X1
After-sales instructions
Warranty days: 365 days
1. For product quality problems caused by non-human products of instruments and equipment, the manufacturer will provide free warranty services during the warranty period;
2. There is no warranty period for fragile and consumable parts, and if you find product quality problems after receiving the goods, please apply for return and exchange within 7 days, and you will not wait for the overdue ones;
[Note] For after-sales services outside the Chinese mainland, if the instrument requires repair, the shipping and possible associated taxes shall be borne by the sender. Generation address of the manual: http://en.nbchao.com/p/45663/Specification.html , which is only used by users who purchase commodities from the NBCHAO.
Created on : 2025/12/18