Hanna Instruments Australia
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Sales: (03) 9769 0666   |    Mon to Fri: 8:30am – 5:00pm
Hanna Instruments Australia
Sales: (03) 9769 0666   |    Mon to Fri: 8:30am – 5:00pm

Conductivity (EC) Mini Controller (0.0 - 199.9 µS/cm) - BL983320

$430.12

$430.12
$430.12

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.

This compact, panel mounted, process controller is for measuring electrolytic conductivity (EC) of a process stream. 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.

BL983320’s 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.

BL983320

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.
BL983320

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.

HI7634

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

SKU BL983320-web
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%/℃
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”: 12 VDC adapter (included)
models “-1”: 115/230 VAC; 50/60Hz
Dimensions 83 x 53 x 99 mm (3.3 x 2.1 x 3.9”)
Weight models “-0”: 200 g (7.1 oz.) models “-1”: 300 g (10.6 oz.)

BL983320-1 (115/230 VAC) and BL983320-0 (12 VDC) supplied with mounting brackets, transparent cover and instruction manual.

Conductivity (EC) Mini Controller (0.0 – 199.9 µS/cm) – BL983320

All prices are inclusive of GST and not all items are stock items, if you require an immediate solution please send an email to sales@hannainst.com.au or call us on (03) 9769 0666.


Free standard delivery:

We offer free delivery within Australia, typically arriving within 5 to 7 days. Delivery times may vary depending on the courier service and the recipient’s location.


Same-day express delivery:

Place your order before 1 PM Monday to Friday for the same-day express shipping. Delivery times may vary depending on the courier service and the recipient’s location.

Please note that we do not offer shipping to PO Box addresses.

All prices are inclusive of GST and not all items are stock items, if you require an immediate solution please send an email to sales@hannainst.com.au or call us on (03) 9769 0666.

Please note that we do not offer shipping to PO Box addresses.