User manual HANNA INSTRUMENTS HI 983319-0

[. . . ] 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. If under warranty, report the model number, date of purchase, serial number and the nature of the failure. [. . . ] Solution HI7031 (1413 µS/cm) Power supply: External HI983319-0 12 VDC HI983319-1 115/230 VAC; 50/60Hz Dimensions 79 x 49 x 95 mm (3. 1 x 1. 9 x 3. 7") Weight: HI983319-0 140 g (4. 96 oz) HI983319-1 250 g (8. 85 oz) 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. The metal band at the end of the probe is sensitive to electrostatic discharges. Avoid touching this metal band at all times. 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 voltage at the measurement surface exceeds 24 VAC or 60 VDC. Use plastic beakers to minimize any EMC interferences. To avoid damage or burns, do not perform any measurement in microwave ovens. ISTR983319R5 12/2001 Hanna Instruments reserves the right to modify the design, construction and appearance of its products without advance notice. http://www. hannainst. com FUNCTIONAL DESCRIPTION FRONT PANEL Keypad SET MEAS To display setpoint To display measurement 3. Probe Connection: follow the above diagram and connect the colored wires of probe cable as indicated. It is recommended to connect the shield (P5) to avoid any interference. Press the "MEAS" key. The LCD will show the TDS value of the solution in ppm unit. Any initial variation on readings may be due to temperature compensation. The "ALARM" LED will light up when the alarm contact is closed, to indicate a TDS value lower than selected setpoint. CALIBRATION Make sure the meter is in the measurement mode (the "MEAS" LED lights on). Immerse the probe in HI 7031 (1413 µS/cm) calibration solution. Shake briefly and wait for reading to stabilize. Using a small screwdriver adjust the calibration trimmer until the meter displays "919" ppm. The display will show the default or previously adjusted value for the setpoint. Using a small screwdriver, adjust the "SET" trimmer until the required limit value is displayed. [. . . ] "SET" and "MEAS" LEDs light up to indicate which is the operating function. Make sure that the meter is calibrated and the Setpoint is properly selected before performing any measurement. Install the probe in the fittings or immerse it in the solution to be monitored, while making sure that metal pins are completely submerged. Trimmers CAL For calibration SET To adjust setpoint LEDs SET MEAS ALARM ON when LCD displays the set value ON when LCD displays the measured value ON when alarm contact is activated REAR PANEL 1. Power Supply: HI 983319-0 12 VDC L1: L2: L3: L4: Positive Negative ------------HI 983319-1 115/230 VAC 230 VAC 115 VAC Neutral Protection Earth Side view of the panel-mounted unit Supplied adjustable location brackets allow the controller to slide into the cutout and will hold the unit securely in place. [. . . ]