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.
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 BL983320 mini controller uses the HI7634 conductivity probe that is available with different cable lengths.
*HI7634 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..
Range 0.0 to 199.9 μS/cm Resolution 0.1 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 than the setpoint Setpoint adjustable from 0 to 199.9 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 “-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 BL983320-1 (115/230 VAC) and BL983320-0 (12 VDC) are supplied with mounting brackets, transparent cover and instruction manual.
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