for Swimming Pools, Hot Tubs, and Spas
BL101 ORP Controller and Dosing Pump is a system engineered for maintaining the ORP of swimming pools, hot tubs, and spas. Typically liquid chlorine is used as a disinfectant to keep the water safe from harmful bacteria. Chlorine, as an oxidizer, will increase the oxidationreduction potential (ORP) of water when it is added to it. When the ORP value is greater than 650mV then bacteria that are present will be killed within seconds. The BL101 was developed to be an inexpensive solution for the consumer to maintain the ideal ORP value at all times. Simply insert the probe and injection valve in-line with the recirculation pump and provide the chemical to be dosed. The BL101 is available in multiple configurations including a meter and probe option, a kit for in-line mounting, and a complete package that includes
bypass loop and panel mounted flow cell. The kit for in-line and flow cell models include aspiration tubing with filter and dispensing tubing with injection valve.
Request a quotation
This product cannot be purchased online. Fill in the form to get a quotation, thank you.
Peristaltic Dosing Pump
The BL101 has a powerful built-in peristaltic chemical feed pump that utilizes a stepper motor which does not have any gears or brushes to wear out. This design provides for a long life and little maintenance.
Adjustable Flow Rate
The flow rate from the dosing pumps is adjustable from 0.5 to 3.5L/h. Larger bodies of water require more chemical to be dosed than smaller ones in per unit of time. The adjustable flow rate, like the proportional band, allows for better control in maintaining a desired set point. For example, a controller is programmed to have a set point of 650 mV
with a 50 mV proportional band and the flow rate at 1.0 L/h. Any reading below 600 mV will cause the dosing of the oxidizer to be at 1 L/h. If the reading is at 625 mV, which is 1/2 of the band, then the dosing pump will run at half speed or deliver 0.5 L/h of chemical. The closer the reading is to the set point the longer it takes for the pump to complete one rotation. This allows for very fine control of the ORP value desired.
Programmable Alarm System
Hanna controllers allow users to enable or disable the low and high level alarms for ORP. When an alarm is activated, all dosing will stop. For added safety, the alarm system also offers overdosing protection in that if the set point value is not corrected within a programmed time interval then the meter will go into alarm status.
Quick Connect Probe Input
The Quick Connect DIN connector creates a waterproof seal with the meter making it ideal for reducing electrical noise issues with the connection caused by humid environments.
Automatic Proportional Pump Control
The peristaltic dosing pump can be controlled by simple on/off or more advanced proportional control which helps prevents overshooting of the set point. When using proportional control the flow rate that is programmed, will be impacted by the proportional band used. The closer the reading is to the set point the longer it takes for the peristaltic pump to complete one revolution. If the reading is outside the proportional band then the amount of time it takes to complete one revolution is based on the flow rate programmed.
Acid Tank Level/Flow Switch Input
The BL101 allows for a connection to an optional level controller or flow switch. This input can be used to disable the dosing pump when there is no chemical left in the reservoir tank or there is no flow due to the pump being turned off.
Multicolored LCD Display
The BL101 features a multi-colored LCD that provides for a quick way to see the status of the pool controller. If in control mode and operating as intended the display will be green. If control is not enabled then the display will be light green; while in an alarm state the display flashes red.
|ORP Range||-2000 to 2000 mV|
|ORP Resolution||1 mV|
|ORP Accuracy (@25°C/77°F)||±5 mV|
|Temperature Range||-5.0 to 105°C (23.0 to 221.0°F)|
|Temperature Resolution||0.1°C (0.1°F)|
|Temperature Accuracy (@25°C/77°F)||±0.5°C (±0.9°F)|
|Calibration||process calibration: single point, adjustable (± 50 mV around measured ORP value)|
|Pump Control||selectable flow rate (0.5 to 3.5 L / hour; 0.13 to 0.92 G/hour)|
manual control for pump priming
|Alarms||high and low with enable / disable option|
triggered after 5 sec. if controller records a set of consecutive readings over / under threshold values level with enable / disable option
overtime protection (1 to 180 min. or off)
intuitive alarm system using red, light green, and green color-coded backlight
|External Event Input||input for level controller or flow switch to disable dosing pump in the event of no chemical when using a level controller or no flow when using a flow switch – galvanically isolated|
|Alarm Relay Output||SPDT 2.5A / 230 VAC|
|Power Supply||100—240 VAC, 50/60 Hz|
|Power Consumption||15 VA|
|Casing||wall mounted, built-in pump, IP65 rated|
|Environment||0-50°C (32-122°F), max. 95% RH non-condensing|
|Dimensions||90 x 142 x 80 mm (3.5 x 5.6 x 1.8”)|
|Weight||910 g (32 oz.)|
|Ordering Information||BL101-00 is supplied with HI20083 ORP/temperature probe, ORP test solution, (3), power connection cable, instruction manual and quality certificates for instrument and probe.|
BL101-10 (with in-line mounting kit) is supplied with BL101 controller, HI20083 ORP/temperature probe, pool controller aspiration filter, pool controller injector, 1/2” thread, saddle for Ø 50 mm pipe (2), aspiration PVC tube (flexible) (5 m), dispensing PE injection tube (rigid) (5 m), valves (2), ORP test solution (3), power connection cable, instruction manual and quality certificates for instrument and probe.
BL101-20 (with flow-cell mounting kit) is supplied with BL101 controller, HI20083 ORP/temperature probe, flow cell for BL100/BL101, mounting panel assembly for BL100/BL101, pool controller aspiration filter, pool controller injector, 1/2” thread, saddle for Ø 50 mm pipe (3), aspiration PVC tube (flexible) (5 m), dispensing PE injection tube (rigid) (15 m), tubing adapter 1/2” – 6 mm with racord (2), valves (2), ORP test solution, 20 mL (3), power connection cable, instruction manual and quality certificates for instrument and probe.
|Recommended Probe||HI20083 Platinum tip ORP/Temperature probe with quick connect DIN connector – galvanically isolated|