TDS Mini Controller (0.00 to 19.99 ppm)$170.00
The BL983321 is a compact, panel mounted, process controller for measuring total dissolved solids (TDS) of a process stream that is within the 0.00 to 19.99 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 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 TDS water to flow into a tank being monitored in order to lower its TDS. The BL983321 can also be used to monitor the quality of water produced from ion exchange, reverse osmosis (RO) or distillation. *The BL983321 uses a 0.5 conversion factor in which 1.00 μS/cm = 0.50 ppm.
- Multicolor LED Indicator
- Fire Retardant Casing
- Fire Retardant Casing
Thank you for your interest in our products. A representative will contact you within the next 2 hours.
Adjustable Dry Contact Dosing Relay
The BL983321 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 BL983321 mini controller uses the HI7634-00 conductivity probe that is available with different cable lengths.
*HI7634-00 is not included and must be ordered separately
Installation cut-out dimensions are provided as well as outside panel dimensions.
Adjustable location brackets allow the controller to slide easily and securely into place.
Specification Name Detail SKU BL983321 TDS Range 0.00 to 19.99 mg/L (ppm) TDS Resolution 0.01 mg/L (ppm) TDS Accuracy (@25°C/77°F) ±2% F.S. TDS Conversion Factor 0.5 Temperature Compensation automatic from 5 to 50°C (41 to 122°F) with ß =2%/ºC Calibration manual, with CAL trimmer Dosing Relay maximum 2A (fuse protected), 250 Vac, 30 VDC Contact close when measure: > setpoint Overtime 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.) Ordering Information Supplied with mounting brackets, transparent cover and instruction manual. Recommended Probe HI7634-00 EC/TDS probe with internal temperature sensor and 2 m (6.6’) cable (not included).
- Product Manuals