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Summary of Contents for Apera Instruments DO8500
- Page 1 DO8500 Portable Optical Dissolved Oxygen Meter Instruction Manual APERA INSTRUMENTS (Europe) GmbH www.aperainst.de v1.2 - 1 -...
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Page 2: Table Of Contents
Table of Contents Overview ..........................- 3 - Luminescent optical sensor................... - 3 - Intelligent Instrumentation....................- 3 - Technical Specifications ....................... - 4 - Instructions .......................... - 5 - LCD Screen ........................- 5 - Key Operation ....................... - 6 - Batteries ........................ -
Page 3: Overview
Compared to conventional electrochemical dissolved oxygen meter, the DO8500 is more accurate and stable, and easier to use. Before you use the instrument, please carefully read the instruction manual to help you properly perform tests and maintainenance. -
Page 4: Technical Specifications
Technical Specifications Dynamic Range (0-20.00) mg/L (ppm), (0-200.0)% Resolution 0.01/0.1mg/L (ppm), 0.1/1% ±2% reading or ±0.2 mg/L, whichever is greater Accuracy ±2% reading or ±2% saturation, whichever is greater Dissolved Oxygen Response Time ≤30 s (25℃ , 90% response) Calibration Points Saturation Point &... -
Page 5: Instructions
Instructions 3.1 LCD Screen Fig.-1 Serial number of storage and Measurement mode ① ⑨ prompts of special display mode M+ — Measurement to be stored Reading/Measured Value ② ⑩ RM — Reading to be recalled Temperature value and Timing storage ③... -
Page 6: Key Operation
3.2 Key Operation Fig.-2 Short press: key press time < 2 s; Long press: key press time> 2 s. Power on: Press to turn on. Shutdown: long press 2 seconds off. First time use: see parameter setting P4.7 & P4.8 to set correct date and time (as Clause 8.3) Special notes: Before get readings or do other operations, wait about 30 seconds after meter powered on. -
Page 7: Batteries
3.3 Batteries The instrument uses three AA alkaline batteries. Battery life > 200 hours (without backlight). When the display shows symbol as shown in Figure-3, replace the battery. 3.4 Instrument Socket Fig.-3 The instrument socket protected by grey rubber sealing cap, as shown in Figure-4. -
Page 8: Data Storage, Recall, And Clear
3.6 Data storage, recall, and clear. 3.6.1 Manual storage When the measurement is stable, press key, the meter will store measureent value, M+ icon and storage serial number will be displayed on botton right of LCD sreen, as shown in Figure-9. First group of data was stored.If connect salinity probe, press key, M+ icon and storage serial number will be displayed for 2 seconds, then salinity... -
Page 9: Optical Dissolved Oxygen Probe
Optical Dissolved Oxygen Probe 4.1 Probe Structure The instruments DO803 optical dissolved oxygen probe has a cable length of 3m and a built- in temperature sensor for automatic temperature compensation. The electrode structure is as shown in Figure.-12 Fig.-12 1. Bottom cover of the calibration sleeve 5. -
Page 10: Sensor Cap
immersed in tap water at room temperature 25℃ for 24 hours. If the water temperature is low, soaking time is 48-72 hours. (D) The sponge can not be allowed to get stained or moldy, otherwise it will consume or produce oxygen. If stained or moldy, please replace it immediately. 4.3 Sensor Cap (A) The sensor cap is an important part of the optical DO probe. -
Page 11: Resolution Selection
Resolution Selection The resolution unit can be selected in parameter setting P3.2: 0.01 or 0.1mg/L (ppm), After setting, the meter will display resolution of 0.1 or 1 in according to %. 5.3 Temperature Unit Selection The temperature unit can be selected in parameter setting P4.2: ℃ or ℉. 5.4 Air Pressure Compensation The instrument has automatic air pressure compensation function. -
Page 12: Calibration
reading is stable and displays on the LCD, press key to calibrate, LCD displays correct salinity value (the calibration procedure refer to Figure –13). Press key to return to the measurement mode. Special notes: (A) Use 12.88mS/cm conductivity calibration solution to calibrate salinity. If the the standard solution is wrong, Err icon will be flashing at the bottom right of LCD if is pressed, indicating invalid calibration. -
Page 13: Special Notes For Calibration
(A) Preparation of 100ml of oxygen-free water: in the 100ml beaker, weigh 2g anhydrous sodium sulfite (Na ) and add 100ml of pure water or tap water to dissolve. Oxygen-free water is effective within 1 hour. (B) Put the electrode into the oxygen-free water, wait for 3 to 5 minutes after the instrument is turned on, and wait for the temperature and measured value to completely stabilize. -
Page 14: Parameter Settings
Parameter Settings Press the key in the measurement mode to enter the parameter setting mode P3.0, key to switch the menu P3.0 →P4.0; In P3.0 mode, press press the to enter P3.1, press to switch submenu P3.1→P3.6; In P4.0 mode, press to enter P4.1,press to switch submenu P4.1→P4.8. - Page 15 DO Parameter setting (press to switch) P3.1—Dissolved Oxygen Unit (mg/L—ppm) 1. In P3.0 mode, press the key to enter P3.1 mode. 2. Press the key, mg / L flashes, press the key to select mg/L → ppm, press to confirm. 3.
- Page 16 Basic Parameter setting (press to switch) P4.1—Adjust timing storage time 1. In P4.0 mode, Press key to enter P4.1 mode. 2. Press key,”00” flashes, Press key to adjust minute (0~59); Press key,”0” flashes,Press adjust hour (0~99), Press key to confirm; 3.
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Page 17: Usb Communication
P4.6—Auto Power Off (On—Off) 1. Press key, On flashes，Press key to select On→Off， press key to confirm. On—turn on auto power off function Off—turn off auto power off function. 2. Press key to enter P4.7 mode, or press key to return to measurement mode. - Page 18 The port number is software connected to computer, each computer recognizes different port number, as shown in Figure – 15, the port number is COM3. Open/Close — press this key to turn on or off software, Icon indicates that software is activated.
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Page 19: Complete Kit
Press “Export” key to export the stored value to Microsoft Excel file and then analyze or print the stored data. Complete Kit 10.1 What’s in the box Content Quantity DO8500 Portable Optical Dissolved Oxygen Meter DO803 Optical Dissolved Oxygen Probe Probe Calibration/storge sleeve Conductivity Electrode 2301-3M PC-Link Communication Software disk USB Communication Cable... -
Page 20: Warranty
11.1 We warrant this instrument to be free from defects in material and workmanship and agree to repair or replace free of charge, at option of APERA INSTRUMENTS (Europe) GmbH, any malfunctioned or damaged product attributable to responsibility of APERA INSTRUMENTS (Europe) GmbH for a period of 3 YEARS from the date of purchase. -
Page 21: Trouble Shooting
12 Trouble Shooting Error Solutions 1. The battery is not installed correctly. Check the polarity. The instrument does 2. Battery low voltage, replace the battery. not turn on 3. Instrument freezes. Unplug the battery and then install. 1. Check calibration procedure: correct atmospheric pressure, salinity input and temperature. -
Page 22: Appendix A: Oxygen Solubility Table (760Mm Hg)
Appendix A: Ox ygen Solubility Table (760mm Hg) Chlority: 0 5.0 ppt 10.0 ppt 15.0 ppt 20.0 ppt 25.0 ppt Temp °C Salinity: 0 9.0 ppt 18.1 ppt 27.1 ppt 36.1 ppt 45.2 ppt 14.62 13.73 12.89 12.10 11.36 10.66 14.22 13.36 12.55... -
Page 23: Appendix B: Do % Calibration Values
562.4 74.98 749.81 26.33 668.8 89.17 891.66 21.84 554.8 73.97 739.67 26.03 661.2 88.15 881.53 21.54 547.2 72.95 729.54 APERA INSTRUMENTS (Europe) GmbH Address: Wilhelm-Muthmann-Str. 15 42329 Wuppertal Germany Tel: +49 202 51988998 Email: info@aperainst.de Website: www.aperainst.de - 23 -...
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