Description
Adjustable Dosing Relay
The BL981411 features a dosing relay which may be configured to dose above or below a user programmable pH setpoint.
Selectable Overdose Protection
The mini controller may be programmed to deactivate a valve, pump, or connected device if its activation continues over a selected time; adjustable from 5 to 30 minutes.
Selectable Control Override
With the flick of a switch, normal “Auto” operation may be overridden turning your connected device “Off” from operation or always “On.”
Fuse Protected Dosing Contacts
The mini controller is protected for up to a 2A load from a connected pump or device.
Easy Peripheral Connection
Quick-connect terminal blocks provide for easy connection to power, communication, dosing control, or sensors.
Matching Pin Connection
An included matching pin option helps protect the sensor from ground loop effects that may lead to erratic readings or system damage.
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Front ViewInstallation cut-out dimensions are provided as well as outside panel dimensions. | Side ViewAdjustable location brackets allow the controller to slide easily and securely into place. |
| Specification Name | Detail |
|---|---|
| SKU | BL981411 |
| pH Range | 0.0 to 14.0 pH |
| pH Resolution | 0.1 pH |
| pH Accuracy (@25°C/77°F) | ±0.2 pH |
| Calibration | manual, through CAL (offset) trimmer |
| Dosing Relay | maximum 2A (fuse protected), 250 Vac, 30 VDC |
| Dosing Selection | acid or alkalinecontact open=acid dosage=relay ON if measurement > setpointcontact closed=alkaline dosage=relay ON if measurement < setpoint |
| Setpoint | adjustable from 0 to 14 pH |
| Overtime | adjustable, typically from 5 to approximately 30 minutes |
| Input Impedance | 10^12 Ohm |
| Power Supply | BL981411-0: 12 VDC adapter (included);BL981411-1: 115/230 VAC; 50/60Hz |
| Dimensions | 83 x 53 x 99 mm (3.3 x 2.1 x 3.9’’) |
| Weight | BL981411-0: 200 g (7.1 oz.);BL981411-1: 300 g (10.6 oz.) |
| Ordering Information | Supplied with mounting brackets, transparent cover and instruction manual. |
| Recommended Probe | HI1001 PVDF body pH electrode with 1/2” NPT thread, BNC connector and 3 m (9.8’) cable for continuous flow-thru monitoring (not included). |
