DESCRIPTION:
The BL983314 mini controller has been specially designed for high purity water quality measurements. Resistivity, measured in Megohms, is the optimal way to measure the quality of water produced by high purity RO systems. As filter systems become less effective, the resistivity value will decrease indicating a need for maintenance and/or replacement of filters and critical components. Properly functioning RO and water conditioning systems will consistently produce water with resistivity readings in the range of 16 to 18 Megohms. Theses controllers are miniaturized to an 8 by 5 cm (3 x2“) dimension so that they can be mounted right on the panels, stands or equipment. Readings are automatically temperature compensated, with three different coefficients (ß=2.4, 3.5 or 4.5 %/ºC). The alarm relay contact (2A, 120VAC, NO) can be used for connection to an alarm, pump, solenoid or dosing system. The relay contact is open when readings are higher than the setpoint (+Hysteresis), while for measurements lower than setpoint (-Hysteresis), the relay contact is closed. The Hysteresis is typically 0.20 Megohms/cm around the setpoint. Measurements are displayed on the large LCD and the multicolored LED continuously indicates if the controller is in measurement, dosing or alarm mode. You can also choose automatic or manual dosing mode with a switch on the front panel. Manual control is particularly useful during maintenance operations, because it permits you to enable or disable the dosing relay according to your need. The overtime control system advises you when the relay is active for too long, helping to prevent overdosage. Two models are available, with power supply input at 115/230 Vac or 12 Vdc. The BL983314 series measure resistivity from 0.00 to 19.90 Megohms/cm. In order to adjust the setpoint of the controller, simply turn the relevant trimmer positioned on the front panel. The controllers are easy to install and are supplied with mounting brackets. The HI3314 probe is included and it has ½” external threads so that they can be installed directly in a standard pipe tee's.
Some of BL983314's features include:SPECIFICATIONS:
| SPECIFICATIONS | BL983314-0 | BL983314-1 |
| RANGE | 0.00 to 19.90 Megohms/cm | 0.00 to 19.90 Megohms/cm |
| RESOLUTION | 0.10 Megohms/cm | 0.10 Megohms/cm |
| ACCURACY (@20°C/68°F) | ±2% F.S. | ±2% F.S. |
| CALIBRATION | Factory Calibrated | Factory Calibrated |
| TEMPERATURE COMPENSATION | Automatic from 5 to 50°C (41 to 122°F) | Automatic from 5 to 50°C (41 to 122°F) |
| SETPOINT | Adjustable, from 0-19.90 Megohms/cm | Adjustable, from 0-19.90 Megohms/cm |
| RELAY CONTROL (2A, 120VAC, NO) |
Activated when the measured value is lower than the setpoint |
Activated when the measured value is lower than the setpoint |
| PROBE | HI3314 (included) | HI3314 (included) |
| POWER SUPPLY | External 12 VDC | 115/230; 50-60Hz |
| DIMENSIONS | 79x49x95 mm(3.1 x 1.9 x 3.7") | 79x49x95 mm(3.1 x 1.9 x 3.7") |
HOW TO ORDER:
BL983314-0: Mini Panel-Mount Resistivity Controller with probe, 12VDC..... $250.00
BL983314-1: Mini Panel-Mount Resistivity Controller with probe, 115/230VAC..... $250.00
