User manual EUTECH INSTRUMENTS WATERPROOF CYBERSCAN PD 300 PHDISSOLVED OXYGEN METER

[. . . ] Instruction Manual CyberScan PD 300 Waterproof Hand-held pH/Dissolved Oxygen/Temperature Meter 68X248910 05/2000 ver 1 Technology Made Easy . . . Preface This manual serves to explain the use of the Waterproof CyberScan PD 300 hand-held meter. It functions in two ways, firstly as a step by step guide to help you to operate the meter. Secondly, it serves as a handy reference guide. It is written to cover as many anticipated applications of the Waterproof CyberScan PD 300 meter as possible. [. . . ] Your meter may display different values depending on the settings & your environmental conditions) 4. 7. 8. See Figure 20. 27 7. 4 P3. 0: pH Measurement configuration This subgroup program allows to customize the meter to your specific needs. Select READY indicator ON or OFF Select the number of pH calibration points Select between °C and °F units for temperature readings Figure 21 on the right shows the setup sequence for this program subgroup. Figure 21 ­ P 3. 0: Unit configuration program 28 P3. 1: READY Indicator and auto endpoint function This program lets you select: · · · "READY indicator on" to indicate when the reading is stable. "READY indicator off" for faster meter response. Select auto endpoint on to "hold" the reading when it is stable for more than 5 seconds. The display automatically freezes, and the HOLD indicator appears on the left side of the display. Press the HOLD key to release the display and access other functions. From measurement mode 1. Press the MODE key to select pH measurement mode. Press the v or w keys to scroll through subgroups until you view parameter P3. 0. Press the ENTER key to select parameter 3. 1. Press the v or w keys to select the configuration you require. ON and HOLD together switches the auto endpoint feature on. 4. 5. Press the ENTER key to confirm selection and to proceed to step 4 of P3. 2. Press the CAL/MEAS key to return to measurement mode. Figure 22 ­ P 3. 1: Selecting READY function) NOTES: Meter default is set for READY indicator on and auto endpoint function off. You can also change the Ready indicator and auto endpoint function in the DO mode. Any changes you make to the Ready indicator/auto endpoint function in pH mode will also change in DO mode. 29 P3. 2: Selecting number of pH calibration points Program P3. 2 lets you select the number of calibration points that appear in pH calibration mode: 2, 3, 4, or 5. The meter will automatically exit calibration mode after you have calibrated to your selected number of points. Press the MODE key to select pH measurement mode. Press the v or w keys to scroll through subgroups until you view parameter P3. 0. Press the ENTER key twice to select parameter 3. 2. Press the v or w keys to select 2, 3, 4, or 5 point pH calibration. Press the ENTER key to confirm selection and to return to the subgroup menu. Press CAL/MEAS key to return to measurement mode. 4. 5. 6. See Figure 23. Figure 23 ­ P3. 2: Select number of pH calibration points 30 P3. 3 Selecting °C or °F This meter lets you select between °C and °F units for temperature readings. [. . . ] If you do not have equipment that lets you measure the exact barometric pressure at your altitude, you can estimate it using the chart below. If you change the barometric pressure setting from its factory setting (760 mm Hg), the % saturation calibration value in air will automatically adjust to a value other than 100% (see "corrected % saturation value" column below). The adjusted value is correct for the new barometric pressure setting. See page 20 for information on how to adjust the barometric pressure. [. . . ]