User manual HANNA INSTRUMENTS BL 983314

[. . . ] Any defective item must be returned in its original packing. WARRANTY These instruments are warranted for two years against defects in workmanship and materials when used for their intended purpose and maintained according to instructions. This warranty is limited to repair or replacement free of charge. Damages due to accident, misuse, tampering or lack of prescribed maintenance are not covered. If service is required, contact the dealer from whom you purchased the instrument. [. . . ] Connections and wiring to probe, power supply and contacts are made via the terminal blocks on the rear panel. The probe is easy to clean and requires little maintenance. Other features include: user-selectable temperature coefficient for readings compensation, overtime control system, multicolour LED for indicating if the meter is in measurement/ dosing/alarm condition, possibility to set (Off-Auto-On switch) dosing action mode. Two models are available: · BL 983314-0 powered at 12 Vdc · BL 983314-1 powered at 115 or 230 Vac ASSEMBLING VIEW HI 3314 HI 710005 HI 710006 HI 710012 HI 710013 HI 710014 HI 731326 HI 740146 ACCESSORIES Resistivity probe 12 Vdc power adapter, US plug 12 Vdc power adapter, European plug 12 Vdc power adapter, Australian plug 12 Vdc power adapter, South African plug 12 Vdc power adapter, UK plug Calibration screwdriver (20 pcs) Mounting brackets FUNCTIONAL DESCRIPTION Front panel Rear panel OPERATIONS REAR PANEL CONNECTIONS Terminals #1: Probe · Connect the supplied HI3314 probe by following the wires colour indications. Terminals #2: Power Supply · Model BL983314-0: connect the 2 wires of a 12 Vdc power adapter to the terminals +12 Vdc and GND. · Model BL983314-1: connect a 3-wire power cable to the terminals while paying attention to the correct earth (PE), line (L) and neutral (N1 for 115 V or N2 for 230 V) contacts. Terminals #3: Dosing Contact · This contact drives the dosing system, accordingly to the selected setpoint. Note: The setpoint has a typical hysteresis value comparable to the meter accuracy. Terminals #4: Not Used Contact Overtime system: jumper (#5) and trimmer (#6) · This system allows the user to set a maximum dosing period, by adjusting the rear trimmer from 5 (min) to approx. · When the set time is exceeded, any dosing action stops, the LED indicator on the front panel will blink Red and the LCD will show the "TIMEOUT" warning message. To exit the overtime condition, set the OFF/Auto/ON switch to "OFF" position, and then to "Auto" again. · For disabling the overtime feature, simply remove the jumper on the rear panel. Note: The overtime system works only if the OFF/Auto/ON switch is in "Auto" position. OPERATING THE METER Attach the resistivity probe to the meter and immerse it in the solution to be monitored while making sure that the metal pins are completely submerged. Press the "MEAS" key (if necessary) and wait for a few seconds to allow stabilization of reading. The LCD will display the resistivity value of the solution in M/cm unit. The LED indicator will light up Green when the meter is in measurement mode and dosing is not active, while will light up Orange/Yellow for signaling that a dosing action is in progress. CALIBRATION The meter is factory calibrated. [. . . ] "SET" trimmer to adjust the setpoint value 6. 3-colour LED indicator: · Green = meter in measurement mode · Orange/Yellow = dosing in progress · Red, blinking = indicates an alarm condition 1. TC jumper for selection of temperature coefficient () 2. Connections for HI 3314 resistivity probe 3. [. . . ]