User manual HANNA INSTRUMENTS BL 983314

[. . . ] These instruments are in compliance with the directives. SPECIFICATIONS Range 0. 00 to 19. 90 M/cm Resolution 0. 10 M/cm Accuracy (@ 20°C/68°F) ±2% f. s. Compensation Automatic and Linear from 5 to 50°C (41 to 122°F) Temperature Coefficient =2. 4 ; 3. 5 ; 4. 5 %/°C User-selectable through rear jumper Calibration Factory calibrated Dosing Contact Maximum 2A (fuse protected), 250 Vac, 30 Vdc Contact close when measure < setpoint Setpoint Adjustable, from 0 to 19. 90 M/cm Overtime Adjustable, typically from 5 to approx. 30 minutes Power Consumption 10 VA Installation Category II Power supply: External (fuse protected) BL983314-0 12 Vdc BL983314-1 115/230 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. [. . . ] During operation, ESD wrist straps should be worn to avoid possible damage to the probe by electrostatic discharges. 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 BL983314-0 and BL983314-1 resistivity indicators and controllers have been designed for continuous monitoring of process solutions. The setpoint value can be fixed by acting on the trimmer on the front panel, and after selection of the required limit, the output relay allows to control an external dosing device. Connections and wiring to probe, power supply and contacts are made via the terminal blocks on the rear panel. 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. [. . . ] 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 BL983314-0 model: 12 Vdc adapter · for BL983314-1 model: 115 Vac or 230 Vac option 4. Jumper for enabling (jumper in) or disabling (jumper removed) the overtime control 7. [. . . ]