User manual HANNA INSTRUMENTS HI 983315-0

[. . . ] Note: Conserve all packing material until the instrument has been observed to function correctly. Any defective item must be returned in its original packing. Manufacturers since 1978 These Instruments are in Compliance with the CE Directives WARRANTY These meters are warranted for two years against defects in workmanship and materials when used for their intended purpose and maintained according to instructions. The probe is warranted for a period of six months. This warranty is limited to repair or replacement free of charge. [. . . ] The probe is easy to clean and requires little maintenance. Measurements are highly accurate and the meters can be calibrated at one point. Power supply, wiring and selection are made via the plugin terminal blocks on the rear panel. LED indicators on the front panel identify whether the controller is in set or reading mode; alarm led lights up when measurements are higher than selected setpoint value. 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. ISTR983315R5 12/2001 http://www. hannainst. com FUNCTIONAL DESCRIPTION FRONT PANEL Keypad SET MEAS To display setpoint To display measurement OPERATIONAL GUIDE POWER CONNECTION The "ALARM" LED will light up when the alarm contact is closed, to indicate a TDS value higher than selected setpoint. CALIBRATION HI983315 LAYOUT Front view of the panel-mounted unit Trimmers For calibration CAL To adjust setpoint SET LEDs SET MEAS ALARM ON when the LCD displays set value ON when the LCD displays measured value ON when the alarm contact is closed HI 983315-0 and HI 98331500 Connect a 2-wire power cable to the terminal strip while paying attention to the correct positive and negative polarities (12 VDC). HI 983315-1 Connect a 3-wire power cable to the terminal strip while paying attention to the correct earth, neutral and line contacts (115/230 VAC). ALARM CONTACT Use this contact (maximum 5A, 240VAC, 30VDC) for connection to an alarm or dosing system. The unit acts as a switch to control an external device. Notes: · All external cables connected to the rear panel should end with wire lugs. · It is recommended to cover the unused terminals with insulating tape. · At start up the meter needs a few seconds to stabilize. Wait until a stable reading is displayed. [. . . ] Using a small screwdriver, adjust the "SET" trimmer until the required limit value is displayed. Side view of the panel-mounted unit Adjustable location brackets (supplied with the meter) allow the controller 79mm 3. 11" 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. 42mm 1. 65" 49mm 1. 93" 0. 25/4mm 0. 01/0. 160" ADJUSTABLE LOCATION BRACKET REAR PANEL 1. Power Supply: HI 983315-0 HI 98331500 12 VDC L1: L2: L3: L4: Positive Negative ----HI 983315-1 115/230 VAC 230 VAC 115 VAC Neutral Protection Earth 76mm 3" 95mm MIN 3. 74" PROBE MAINTENANCE To improve probe performance and prolong its life, it is recommended to clean it regularly. · Immerse the tip of the probe in HI 7061 Cleaning Solution at least for one hour. [. . . ]