Hanna Instruments HI 98140 Instruction Manual

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Contents

Hanna Instruments HI 98140 Instruction Manual Manual pdf 3 page image

54FUNCTIONAL DESCRIPTION1) Power adapter plug2) RS232 connector3) DIN connector for smart electrodes4) Liquid Crystal Display (LCD)5) ON/OFF key, to turn the meter ON and OFF6) ALT key, to activate alternate key function7) RANGE / GLP key, to select measurement range, to display timeand date, and to view calibration data (with ALT)8) CAL / CALT key, to enter calibration mode9) ‚ CFM key, to move down or confirm values (with ALT)10) LOG / RCL key, to store or recall (with ALT) measurements11) · FNC key, to move up or enter setup mode (with ALT)12) LIGHT / DEL key, to turn the LCD backlight on and off, and todelete stored data (with ALT)These instruments also feature a controlled access to calibration andGLP settings through a password protection method.The Battery Error Preventing System (BEPS) detects when the batter-ies become too weak to ensure reliable measurements.The backlight feature is automatically disabled when the batteries aregetting low and a clear indication is displayed to warn the user ofthis condition. However, the meter continues to measure correctly evenwhen the low battery indication is displayed. The meter automaticallyswitches itself off when the batteries are too weak to support properfunction.For long term field and lab applications, these meters can be connectedto a 12 Vdc adapter.In addition, the meters allow the user to enter an ID code to uniquelyidentify the instruments.