User manual HANNA INSTRUMENTS HI 9141

[. . . ] Untitled-22 1 2 Instruction Manual HI 9141 - HI 91410 Portable Printing and Logging Dissolved Oxygen Meters Dear Customer, Thank you for choosing a Hanna Instruments Product. Please read this instruction manual carefully before using the instrument. This manual will provide you with all the necessary information for the correct use of the instrument, as well as a precise idea of its versatility in a wide range of applications. These instruments are in compliance with directives EN 50081-1 and 50082-1. [. . . ] During field measurements, this condition may be met by manually agitating the probe. Accurate readings are not possible while the liquid is at rest. During laboratory measurements, the use of a magnetic stirrer to ensure a certain velocity in the fluid is recommended. In this way, errors due to the diffusion of the oxygen present in the air in the solution are reduced to a minimum. The month will start blinking. DATE Press the CAL key again and the printing interval will start blinking. TIME INTV CAL CAL 15 16 Untitled-22 17 18 Any interval can be selected from 1, 2, 5, 10, 15, 30, 60, 120 or 180 minutes by using the UP and the DOWN keys. DOWN UP Press the FUNCTION key to leave the time setting mode. FUNCTION Set the desired interval by pressing the CAL key once and the hour will start blinking. Press the FUNCTION key again to display D. O. readings. TIME INTV CAL FUNCTION To select the hour, press the UP or the DOWN keys (24 hour clock). DOWN UP Your time, date and printing interval are now set and stored in the memory even when the display is switched off. Press the CAL key once, the minutes will start blinking. TO VIEW DATE / TIME / TEMPERATURE To view the temperature press the FUNCTION key. °C TIME INTV FUNCTION CAL To view the date first, press the FUNCTION key to display "F1" and then the CAL key. DATE DOWN UP Use the UP or the DOWN keys to select the minutes. FUNCTION CAL Press the CAL key to confirm the selected time and printing interval. To view the time first, press the FUNCTION key until the display shows "F2" and then the CAL key. This also displays the selected prinitng interval. TIME CAL FUNCTION CAL INTV Press the FUNCTION key until the display returns to the D. O. readings. FUNCTION 17 18 Untitled-22 19 20 PRINTING / RECORDING WITH HI 9141 To print the measured values press the PRINT key. The printout provides the following information: a - Running sample number b - Date (DD-MM-YY) c - Time (HH-MM) 0015 d - D. O. e - Temperature value in °C. <> cdefgPRINT Date (DD-MM-YY) Printing interval indicator in minutes Time (HH. MM) D. O. value in ppm Temperature value in °C. °C a 14-01-96 *00. 50 8. 1 ppm 20. 4 °C b c d e When the meter is in recording mode "LOG" is displayed on the bottom left corner of the LCD with the temperature value on the primary display. LOG RECORDING MODE (PROGRAMMED PRINTOUTS ) Press the RECORD key to enter the recording mode. The log number and the interval time will appear for a few seconds on the display to indicate the correct operational mode. RECORD LOG The meter will print the measurement taken in that moment, and will print at the interval selected RECORD thereafter until the RECORD key is pressed. Each printout provides the following informaa tion: b 14-01-96 --02-<> Notes: · It is recommended to use the external power supply (HI 710005 or HI710006) during recording mode, especially when many printouts are required. · Before proceeding with recording, make sure there is enough paper for your measurements. When the paper is finished the meter will not advise the operator and the printouts could be lost. · It is possible to insert a new paper roll during recording session (see page 31). · If the PRINT key is pressed while still in recording mode, a printPRINT out is produced without affecting the running sample number. · Once in recording mode, the printing interval cannot be RECORD changed. Exit the recording mode first (pressing the RECORD key) before setting the new interval (see page 13). 0005M *15. 50 8. 5 ppm 25. 4 ºC c d e f g 0003 TO STOP RECORDING In order to quit the recording mode, press the RECORD key. This will generate a recording exit status printout. Log number Total sample number 10-01-96 ==07== 0005M 0016 *16. 25 #1 20. 0 °C. #2 57. 3 °C. LOG EXIT Date/Time a - A running log number b - A running sample number (in that particular log) 19 20 Untitled-22 21 22 PRINTING / LOGGING WITH HI 91410 To print the measured values shown on display, press the PRINT key. This function can be activated PRINT in normal operation mode as well as during logging (see below). [. . . ] Battery replacement must only take place in a non hazardous area using the battery types specified in this instruction manual (see page 35). In order to replace run down batteries, simply remove the two screws on the rear cover of the instrument and replace the four 1. 5V AA batteries with new ones, paying attention to the correct polarity. A 12VDC power source can also be used to power the unit (see the Accessories section page 35). Note: The instrument uses the following configuration. It is recommendable to purchase Hanna Instruments HI 710005 and HI 710006 voltage adapters that use the proper polarity configuration. [. . . ]