BL 983314 is a simple to operate resistivity controller designed for ultra pure water, reverse osmosis, and water conditioning applications. The BL 983314 resistivity controller is also ideal for continuous monitoring of process solutions. Set point and calibration are manually adjusted with a trimmer and the alarm relay allows for simple control.
Readings are automatically temperature compensated, with three different coefficients (β=2.4, 3.5 or 4.5 %/°C). The alarm contact can be used for connection to an alarm, pump, solenoid or dosing system.
The relay contact is open when readings are higher than the set point, while for measurements lower than set point, the relay contact is closed. The Hysteresis is typically 0.20 MW/cm from the set point.
Measurements are displayed on the LCD and the multicolored LED continuously indicates if the controller is in measurement, dosing or alarm mode. Users can choose automatic or manual dosing mode with a switch on the front panel. Manual control is particularly useful during maintenance operations, because it permits operators to enable or disable the dosing relay according to need.
The overtime control system advises users when the relay is active for too long, helping to prevent over-dosage.
BL 983314-0 (12 VDC) and BL 983314-1 ( 115/230V) are supplied with mounting brackets, transparent cover and instruction manual.
|Range||0.00 to 19.90 MΩ/cm|
|Accuracy @ 25°C||±2% F.S.|
|Probe||HI 3314 resistivity probe with 2 m (6.6') cable (included)|
|Temperature Compensation||Automatic and linear, 5 to 50°C (41 to 122°F)|
|Temperature Coefficient||?=2.4; 3.5; 4.5%/°C|
selectable through jumper on the rear panel
|Dosing Relay||maximum 2A (fuse protected), 250 Vac, 30 Vdc contact close when measure < set point|
|Setpoint||adjustable from 0 to 19.90 MΩ/cm|
|Overtime||adjustable, typically from 5 to approx. 30 minutes|
|Power Supply||See Chart|
|Dimensions||79 x 49 x 95 mm (3.1 x 1.9 x 3.7'')|
Hanna Instruments products are manufactured in our ISO 9001 facilities, meeting the highest quality standards in the industry. Hanna's high standards also apply should a product be returned due to defects in material or workmanship. Our extensive warranty extends up to three years on some products. Limitations: Warranted products may be returned for repair or replacement only at the discretion of Hanna Instruments. In some circumstances, remedy may constitute refund for the price paid for the product.
The warranty period commences from the original date of sale to the user or a maximum of 18 months from factory ship date. Warranty is valid only when the product is used under normal conditions and in accordance with operating limitations and prescribed maintenance procedures. The express warranty stated previously is the only express warranty given by Hanna to the end-user buyer. Hanna expressly disclaims any warranties implied by law, including but not limited to warranty of merchantability of fitness for a particular purpose. Hanna shall not be liable for any individual or consequential damages of any kind for breach of any warranty, negligence, on the basis of strict liability or otherwise. Hanna's warranty periods are:
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