The BL983322 is a compact, panel mounted, process controller for measuring electrolytic conductivity (EC) of a process stream. 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 BL983322 can also be used to monitor the quality of water from DI tanks or from a distillation apparatus. The BL983322 measures EC from 0.00 to 19.99 μS/cm.
The BL983322 features a dosing relay that is activated when the reading is above a user programmable set point.
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.
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 allows an operator to quickly check the status of the controller.
The relay dosing contact is rated for up to a 2A load and is fuse protected.
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.
The BL983322 mini controller uses the HI7634-00 conductivity probe that is available with different cable lengths.
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..
| Range | 0.00 to 19.99 μS/cm |
|---|---|
| Resolution | 0.01 μS/cm |
| Accuracy (@25°C/77°F) | ±2% full scale |
| Calibration | manual, with CAL trimmer |
| Dosing Relay | maximum 2A (fuse protected), 250 VAC, 30 VDC |
| Dosing Selection | relay activated (contact closed) when the measurement is greater thant the setpoint |
| Setpoint | adjustable from 0 to 19.99 μS/cm |
| Overtime | adjustable, typically from 5 to approximately 30 minutes |
| Temperature Compensation | automatic from 5 to 50°C (41 to 122°F) with beta =2%/ºC |
| Power Supply | models “-1”: 230 VAC; 50/60Hz |
| Dimensions | 83 x 53 x 99 mm (3.3 x 2.1 x 3.9’’) |
| Weight | models “-1”: 300 g (10.6 oz.) |
| Ordering Information | BL983322-1 (230 VAC) is supplied with mounting brackets, transparent cover and instruction manual. |
