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BL981411 pH Mini Controller

The BL981411 is a compact, pH process controller designed for applications where space or cost is important. The device contains a high impedance pH input and may be used with any pH electrode with a standard BNC connector. It’s adjustable dosing relay may be configured to dose above or below a user programmable pH setpoint. Users may choose from automatic or manual dosing modes allowing for easy maintenance and troubleshooting.

Brand: Hanna

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Product CodeProduct Product Description Price (Excl gst) Qty Add
HA-BL981411-1 pH Mini Controller (115V) pH Mini Controller (115V) Login for price  
HA-BL981411-0 pH Mini Controller (12VDC) pH Mini Controller (12VDC) Login for price  

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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.

Range 0.0 to 14.0 pH
Resolution 0.1 pH
Accuracy (@25°C/77°F) ±0.2 pH
Calibration manual, 1 point through CAL (offset) trimmer
Dosing Relay maximum 2A (fuse protected), 250 Vac, 30 VDC
Dosing Selection acid or alkaline
contact open=acid dosage=relay ON if measurement > setpoint
contact 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 10¹² 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 BL981411-0 (12 VDC) and BL981411-1 (115V) are supplied with mounting brackets, transparent cover, and instruction manual.
Warranty 2 years

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