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Conductivity Mini Controller (0.00-10.00 mS/cm) – BL983327
The BL983327 is a compact, panel mounted, process controller for measuring conductivity 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 valve to open and drain a tank (i.e. boiler bleed and feed) or add freshwater until the desired set point is reached.
The BL983317 is a closely related product that has the same measurement range but has a relay that is activated when the reading is below the set point.
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 BL983327 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 active.
- 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 BL983327 mini controller uses the HI7632 conductivity probe that is available with different cable lengths.
*HI7632 is not included and must be ordered separately
Front View
Installation cut-out dimensions are provided as well as outside panel dimensions.
Side View
Adjustable location brackets allow the controller to slide easily and securely into place..
Specifications
| SKU | BL983327-web |
| Name | Conductivity Mini Controller (0.00-10.00 mS/cm) – BL983327 |
| EC Range | 0.00 to 10.00 mS/cm |
| EC Resolution | 0.01 mS/cm |
| EC Accuracy | Ā±2% full scale |
| EC Calibration | manual, with CAL trimmer |
| EC/TDS Temperature Compensation | automatic from 5 to 50Ā°C (41 to 122Ā°F) with Ī² =2%/℃ |
| EC/TDS Dosing Relay | maximum 2A (fuse protected), 250 Vac, 30 VDC |
| EC/TDS Dosing Set Point | adjustable from 0 to 10 mS/cm |
| Dosing Control | contact closed when measure > setpoint |
| 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.) |
Ordering Info
BL983327-0 (12 VDC) and BL983327-1 (115/230VAC) are supplied with mounting brackets, transparent cover and instruction manual.
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