User manual HANNA INSTRUMENTS BL 983322

[. . . ] If you need additional technical information, do not hesitate to e-mail us at tech@hannainst. com. These instruments are in compliance with the directives. SPECIFICATIONS Range 0. 00 to 19. 99 µS/cm Resolution 0. 01 µS/cm Accuracy (@ 20°C/68°F) ±2% f. s. Probe HI 7634-00 EC/TDS probe (not included) Temp. Compensation Automatic from 5 to 50°C (41 to 122°F); ß=2%/ºC Calibration Manual, through CAL trimmer Dosing Contact Maximum 2A (fuse protected), 250 Vac, 30 Vdc Contact close when measure > setpoint Setpoint Adjustable, from 0 to 19. 99 µS/cm Overtime Adjustable, typically from 5 to approx. 30 minutes Power Consumption 10 VA Installation Category II Power supply: External (fuse protected) BL983322-0 12 Vdc BL983322-1 115/230 Vac ; 50/60Hz Dimensions 83 x 53 x 99 mm (3. 3x2. 1x3. 9") CE DECLARATION OF CONFORMITY PRELIMINARY EXAMINATION Remove the instrument from the packing material and examine it carefully. [. . . ] Two models are available: · BL 983322-0 powered at 12 Vdc · BL 983322-1 powered at 115 or 230 Vac ASSEMBLING VIEW HI 7634-00 HI 7061M HI 7061L HI 710005 HI 710006 HI 710012 HI 710013 HI 710014 HI 731326 HI 740146 ACCESSORIES EC/TDS probe Probe cleaning solution, 230 mL bottle Probe cleaning solution, 500 mL bottle 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 Recommendations for Users Before using these products, make sure that they are entirely suitable for the environment in which they are used. Operation of these instruments in residential areas could cause unacceptable interferences to radio and TV equipment. Any variation introduced by the user to the supplied equipment may degrade the instrument's EMC performance. To avoid electrical shock, do not use these instruments when voltages at the measurement surface exceed 24 Vac or 60 Vdc. To avoid damages or burns, do not perform any measurement in microwave ovens. FUNCTIONAL DESCRIPTION Front panel Rear panel OPERATIONS REAR PANEL CONNECTIONS Terminals #1: Probe · Connect the HI 7634-00 probe by following the wires colour indications. Terminals #2: Power Supply · Model BL983322-0: connect the 2 wires of a 12 Vdc power adapter to the terminals +12 Vdc and GND. · Model BL983322-1: 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 Before proceeding make sure that: · the meter has been calibrated; · the setpoint value has been properly adjusted; · all rear panel wiring and selections are correct; · the Auto/OFF/ON switch is in the desired position. Install or immerse the probe in the solution to be monitored, then press the "MEAS" key (if necessary). The LCD will show the EC (µS/cm) value. 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 To calibrate the meter, proceed as follows: · ensure the meter is in measurement mode; · use a solution with an EC value higher than 13 µS/cm and immerse the probe; · shake briefly and wait for reading to stabilize; · adjust the "CAL" trimmer to read the solution EC value on the LCD. SETPOINT Press the "SET" key: the display will show the default or previously adjusted value, together with the "SET" indication. [. . . ] 3-colour LED indicator: · Green = meter in measurement mode · Orange/Yellow = dosing in progress · Red, blinking = indicates an alarm condition 1. Power supply terminal: · for BL983322-0 model: 12 Vdc adapter · for BL983322-1 model: 115 Vac or 230 Vac option 3. This contact acts as a switch for driving the dosing system (e. g. Jumper for enabling (jumper in) or disabling (jumper removed) the overtime control 6. [. . . ]