User manual HANNA INSTRUMENTS BL 982411

[. . . ] 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 Resolution Accuracy (@ 20°C/68°F) Typical EMC Deviation Calibration Dosing Contact 0 to 1000 mV 1 mV ±5 mV ±5 mV Manual, through CAL trimmer Maximum 2A (fuse protected), 250 Vac, 30 Vdc Dosing Selection Rdx or Oxd, selectable on the back panel Contact Open=Reductant dosage=Relay ON if Measure > Setpoint Contact Close=Oxidant dosage=Relay ON if Measure < Setpoint Setpoint Adjustable, from 0 to 1000 mV Overtime Adjustable, typically from 5 to approx. 30 minutes Power Consumption 10 VA Installation Category II Power supply: External (fuse protected) BL932700-0 12 Vdc BL932700-1 115/230 Vac ; 50/60Hz Dimensions 83 x 53 x 99 mm (3. 3x2. 1x3. 9") ACCESSORIES ORP SOLUTIONS HI 7020M/L ORP test solution (200-275 mV), 230/500 mL HI 7021M/L ORP test solution (240 mV), 230/500 mL HI 7022M/L ORP test solution (470 mV), 230/500 mL HI 7091M/L Pretreatment Reducing Solution, 230/500 mL HI 7092M/L Pretreatment Oxidizing Solution, 230/500 mL OTHER SOLUTIONS HI 70300M/L Electrode storage solution, 230/500 mL bottle HI 7061M/L Electrode cleaning solution for general purposes, 230/500 mL bottle ORP ELECTRODES HI 3214P/2 BNC-type, platinum, double-junction, plasticbody with 2m (6. 6') cable HI 2003/5 Heavy-duty, BNC-type, platinum, double junction, plastic-body with 5m (16. 5') cable HI 2012/5 Heavy-duty, BNC-type, platinum, double junction, plastic-body with 5m (16. 5') cable EXTENSION CABLES FOR SCREW-TYPE ELECTRODES, SCREW TO BNC CONNECTOR HI 7855/5 Extension cable 5 m (16. 5') long HI 7855/10 Extension cable 10 m (33') long OTHER ACCESSORIES BL PUMPS Dosing Pumps with flow rate from 1. 5 to 20LPH HI 6050 Submersible electrode holder, 60 cm (24") HI 6051 Submersible electrode holder, 110 cm (43") HI 6054B Electrode holder for in-line applications HI 6054T Electrode holder for in-line applications HI 710005 12 Vdc power adapter, US plug HI 710006 12 Vdc power adapter, European plug HI 710012 12 Vdc power adapter, Australian plug HI 710013 12 Vdc power adapter, South-African plug HI 710014 12 Vdc power adapter, UK plug HI 731326 Calibration screwdriver (20 pcs) HI 740146 Mounting brackets HI 7871 Level Controller (min and max) HI 7873 Level Controller (min, max and overflow) PRELIMINARY EXAMINATION Remove the instrument from the packing material and examine it carefully. If any damage has occurred during shipment, immediately notify your Dealer or the nearest Hanna Customer Service Center. [. . . ] 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. GENERAL DESCRIPTION BL982411-0 and BL982411-1 are panel-mounted ORP indicators and controllers designed for simplicity of use in a wide range of industrial applications. Connections and wiring to electrode, power supply and contacts are made via the terminal blocks on the rear panel. The meters are equipped with a BNC socket and accept input from conventional ORP electrodes. Other features include: overtime control system, selection of dosing direction (Rdx/Oxd), one dosing contact, multi-colour 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 982411-0 powered at 12 Vdc · BL 982411-1 powered at 115 or 230 Vac ASSEMBLING VIEW FUNCTIONAL DESCRIPTION Front panel Rear panel OPERATIONS REAR PANEL CONNECTIONS Terminals #1, #2 and #3: Electrode · Connect an ORP electrode to the meter BNC plug (#1). · To benefit from the differential input, connect the proper electrode wire (if available) or a cable with a potential matching pin (grounding bar) to the relevant terminal (#3) on the rear panel. Note: When the Matching Pin can not be immersed together with the electrode in the solution, disable the differential input by shorting terminals #3 (Matching Pin) and #2 (Electrode Reference) with a jumper wire. Terminals #4: Dosing selection · For Rdx dosage, leave the circuit open. · For Oxd dosage, short the terminals with a jumper wire. Terminals #5: Not Used Terminals #6: Power Supply · Model BL982411-0: connect the 2 wires of a 12 Vdc power adapter to the terminals +12 Vdc and GND. · Model BL982411-1: 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 #7: Dosing Contact · This contact drives the dosing system, accordingly to the selected setpoint and dosing direction: · if "Rdx" dosage is set, the relay is ON and dosing activated if measured value is higher than setpoint; · if "Oxd" dosage is set, the relay is ON and dosing activated if measured value is lower than setpoint. Note: The setpoint has a typical hysteresis value comparable to the meter accuracy. Terminals #8: Not Used Overtime system: jumper (#9) and trimmer (#10) · 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. [. . . ] "SET" key to display and set the setpoint value 5. "SET" trimmer to adjust the setpoint value (0 to 1000 mV) 6. 3-colour LED indicator: · Green = meter in measurement mode · Orange/Yellow = dosing in progress · Red, blinking = indicates an alarm condition 5. 10. BNC plug for ORP electrode Connection for electrode reference Connection for potential Matching Pin Rdx/Oxd dosage selection terminal: · contact open = reductant selection · contact closed = oxidant selection Not Used contact Power supply terminal: · for BL982411-0 model: 12 Vdc adapter · for BL982411-1 model: 115 Vac or 230 Vac option This contact acts as a switch for driving the dosing system (e. g. [. . . ]