Hanna BL-983320 Conductivity (EC) Mini Controller (0.0 – 199.9 μS/cm)
The BL983320 is a compact, panel mounted, process controller for measuring electrolytic conductivity (EC) of a process stream that is within the 0.0 to 199.9 μS/cm range. The device features a large LCD with protective cover. Users may choose from automatic or manual dosing modes. When in automatic mode the dry contact relay is activated when a reading is above the set point. The relay can be used to activate a solenoid that switches from one DI (deionized) tank to another or to open a valve that will allow lower EC water to flow into a tank being monitored in order to lower its EC. The BL983320 can also be used to monitor the quality of water produced from ion exchange, reverse osmosis (RO) or distillation.
Multicolor LED Indicator
LED changes color based on status.
Fire Retardant Casing
For additional safety the controllers outer case is made of fire resistant plastic.
Splash Resistant Cover
A clear plastic cover protects the face panel from dirt and liquids.
Adjustable Dry Contact Dosing Relay
The BL983320 features a dosing relay that is activated when the reading is above a user programmable set point.
Programmable Overdose Protection
For enhanced safety the mini controller can be programmed to deactivate the dosing relay if the set point is not reached within a specified time interval. The overdosing timer is programmable from 5 to 30 minutes or disabled.
Relay Control Override
With the flick of a switch the mini controller’s relay can be disabled (Off), placed in control (Auto), or be activated for manual operation (On) which is useful for priming a dosing pump.
Multicolor LED Indicator
Multicolor LED indicator allows an operator to quickly check the status of the controller.
- Green = Meter in measurement mode and reading is below the set point.
- Orange/Yellow = Reading is above the set point and the relay is activated.
- Blinking Red = Indicates an alarm condition such as when the maximum dosing time has been exceeded.
Fuse Protected Dosing Contacts
The relay dosing contact is rated for up to a 2A load and is fuse protected.
Labeled Termination Connections
Quick-connect terminal blocks are clearly labeled for easy connection to power, conductivity probe and relay that can be used to operate a dosing pump, valve, audible alarm, or light.
1/2″ NPT Male Threaded Amperometric Probe for Mounting In-line*
The BL983320 mini controller uses the HI7634 conductivity probe that is available with different cable lengths.
*HI7634 is not included and must be ordered separately
Specifications Hanna BL-983320 Conductivity (EC) Mini Controller
|Product Name||Conductivity (EC) Mini Controller (0.0 – 199.9 μS/cm) – BL983320|
|EC Range||0.0 to 199.9 μS/cm|
|EC Resolution||0.1 μS/cm|
|EC Accuracy||±2% f.s.|
|EC Calibration||manual, with CAL trimmer|
|EC/TDS Temperature Compensation||automatic from 5 to 50°C (41 to 122°F)|
|Temperature Correction Coefficient||β =2%/oC|
|EC/TDS Dosing Relay||contact closed when measure > setpoint
maximum 2A (fuse protected), 250 Vac, 30 VDC
|EC/TDS Dosing Set Point||adjustable from 0 to 199.9 μS/cm|
|Over Dosing Control||adjustable, typically from 5 to approximately 30 minutes|
|Power Supply||models “-0”|
|Dimensions||83 x 53 x 99 mm (3.3 x 2.1 x 3.9’’)|
|Ordering Information||BL983320-1 (115/230 VAC) and BL983320-0 (12 VDC) supplied with mounting brackets, transparent cover and instruction manual.|
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