- The BL983319 is a compact, panel mounted, process controller for measuring total dissolved solids (TDS) in a process stream that is within the 0 to 1999 ppm (mg/L) 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 below the set point. The relay can be used to supply power to a dosing pump to add fertilizer to a nutrient solution in order to maintain an ideal concentration.
- *The BL983319 uses a 0.65 conversion factor in which 100 μS/cm = 65 ppm.
- 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 BL983319 features a dosing relay that is activated when the reading is below 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 BL983319 mini controller uses the HI7634 conductivity probe that is available with different cable lengths.
- *HI7634 is not included and must be ordered separately
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