User manual HANNA INSTRUMENTS HI 933700

[. . . ] These instruments are in compliance with directives EN 50081-1 and EN 50082-1. MECHANICAL DIMENSIONS FUNCTIONAL DESCRIPTION FRONT PANEL MECHANICAL DIMENSIONS MECHANICAL DIMENSIONS FRONT VIEW OF THE PANEL-MOUNTED UNIT. Dimensions show the cutout size for the installation and also the outside dimensions of the panel. 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. The meters are supplied with: · HI 7682 EC probe; · Mounting brackets; · HANNA power adapter. [. . . ] Hanna Instruments reserves the right to modify the design, construction and appearance of its products without advance notice. SIDE VIEW OF THE PANEL-MOUNTED UNIT. 0. 25/4mm 0. 01/0. 160" ADJUSTABLE LOCATION BRACKET GENERAL DESCRIPTION The HI933700 series instruments are panel-mounted controllers designed for simplicity of use in a wide range of industrial applications. The models are designed with a large setting knob on the front panel and two indication LEDs. Power supply and relay connections are made via the plug-in terminal blocks on the rear panel. The instruments are equipped with a probe connection socket and accept input direct from an EC probe. Another feature is the selectable output relay contact configuration NC (Normally Closed) or NO (Normally Open). Output relay contacts C = Central contact NO = Normally Open NC = Normally Closed 79mm 3. 11" 76mm 3" 95mm MIN 3. 74" Adjustable location brackets (supplied with the meter) allow the controller to slide into the cutout and will hold the unit securely in place. 95 mm (3. 74") is the minimum amount of space required to install the controller with the cables connected. SPECIFICATIONS HI933700 Range 0 to 2000 µS/cm (HI 933700/1, HI933700/2); 0 to 4000 µS/cm (HI 933700/3, HI933700/4). Accuracy (@ 20°C/68°F) Setpoint Setpoint Hysteresis Alarm ±5% f. s. Red LED lit if EC value exceeds SP (/1, /3) Red LED lit if EC value is lower than SP (/2, /4) Manual with one trimmer HI 7682 EC probe (included) HANNA Power Adapter (included) 79 x 49 x 95 mm (3. 11 x 1. 93 x 3. 74") 150 g (5. 3 oz. ) II 1A max resistive load; 0. 75 A max. inductive load; 250 VAC CALIBRATION For the greatest accuracy, frequent calibration of the instrument is recommended. · Pour a small quantity of HI 7031 EC calibration solution (for HI 933700/ 1 and /2) or HI 7032 calibration solution (for HI933700/3 and /4) in a beaker. · Immerse the EC probe in the solution, making sure that metal pins are completely submerged. Moreover, in order not to affect the accuracy of measurements, it is important that the probe body does not touch nor stand close to the side walls of the beaker. · Tap the probe gently on the bottom, then shake it while rotating to make sure no air bubbles have remained trapped. · Adjust the calibration trimmer with a small screwdriver until the output relay switches. · Rotate the calibration trimmer in the opposite direction until the relay switches again. · Adjust the calibration trimmer in the middle of the two relay switching points. · The calibration is now complete and the instrument is ready for use. [. . . ] 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. [. . . ]