Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Related Manuals for JENCO 9031M
Summary of Contents for JENCO 9031M
- Page 1 Operation Manual MODEL 9031M Basis Portable DO/Temperature Meter 9031M...
-
Page 2: Table Of Contents
B. Keys THE LSDO PROBE………….………......6 ..............6 Probe ..........6 Preparing the Probe OPERATIONAL PROCEDURES..……......8 ..8 Entering Sensor Cap Coefficients into the 9031M .........9 B. Dissolved Oxygen Calibration ......10 C. Dissolved Oxygen Measurements ....11 D. Sampling Modes-continuous or manual .........11 E. Save, Recall and Delete Data SENSOR MAINTENANCE……………………………...12... -
Page 3: General Introduction
GENERAL INTRODUCTION Thank you for selecting the 9031M meter. The 9031M is a precision tool that measure dissolved oxygen in % and mg/L and temperature. A built-in microprocessor stores, calculates and compensates for all parameters related to DO determinations including DO electrode temperature characteristics. -
Page 4: Installing The Batteries
INSTALLING THE BATTERIES The 9031M meter is packaged with one 9 V battery required for operation. To insert the batteries into the meter, follow the procedure outlined below. Figure 1: Battery compartment Use a screw driver to remove the four screws and battery cover to expose the battery compartment. -
Page 5: Display & Keys Functions
DISPLAY & KEYS FUNCTIONS A. Display Figure 3: Active LCD screen 2. MAIN DISPLAY- Main display for dissolved Low battery indicator. oxygen values. 3. mBar- Display pressure units in 4. Data storage site number. calibration mode. K1, K2, K3, K4, K5, KC: 5. -
Page 6: Keys
B. Keys ON/OFF- Powers on and shuts off the meter. Mode- Selects display mode. In normal operation, press this key to sequentially display Dissolved Oxygen in % air lear saturation, Dissolved Oxygen in mg/L, Recall and Delete interface. In calibration mode, press this key to exit the current calibration parameter and enter into the next one. -
Page 7: The Lsdo Probe
(Figure 4). Figure 4: Probe B. Preparing the Probe Each 9031M sensor cap has unique calibration coefficients associated with it. These coefficients are labeled on the instruction sheet included with each 9031M cable/probe assembly and replacement 9031M sensor cap. - Page 8 instruction sheet in case you need to reload these calibration coefficients. New probe/cable assemblies have the sensor cap installed and coefficients loaded into the probe at the factory. When a cable is installed, the coefficients are automatically sent to the instrument.
-
Page 9: Operational Procedures
K2. Follow the instructions in step 3 and 4 to enter and confirm the value for K2. Continue with K3, K4 and K5. After confirming K5, the 9031M will prompt you for KC. KC has two values. Follow the instructions in step 3 and 4 to enter the coefficients. -
Page 10: Dissolved Oxygen Calibration
The coefficient values are hexadecimal. Due to the 9031M’s display, 6 and b look very similar. Hexadecimal values on the 9031M will be displayed as: A, b, C, d, E, F, 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9. -
Page 11: Dissolved Oxygen Measurements
switch to “Measurement” mode. Calibration is now complete. If “Mode” key is pressed instead of the “Enter” key, any changes made will be cancelled and the previous calibration settings will be retained and will automatically switch to “Measurement” mode. 2-point calibration Connect the LSDO probe to the unit and turn the unit on. -
Page 12: Sampling Modes-Continuous Or Manual
D. Sampling Mode- continuous or manual The 9031M sampling mode can be set to Manual or Continuous. During “Measurement” mode, press hold “Sample/MODE” seconds switch between “Continuous” and “Manual” mode. When in “Manual” mode, press “Sample/MODE” key to initiate a new measurement. -
Page 13: Sensor Maintenance
In the “Delete Each” mode, use “Up” and “Down” key to select data to be deleted. Then press “Enter” key to delete. Deletion is now complete. The next set of saved data will automatically move up a slot in the storage site. Press “Mode”... -
Page 14: Sensor Cap Replacement
B. Sensor Cap Replacement The sensor cap should be replaced about once per year but may last longer. It should also be replaced if it is cracked or damaged (see Troubleshooting section for instructions on how to inspect the cap for damage). The instruction sheet shipped with the replacement LSDO sensor cap includes the calibration coefficients specific to your sensor cap. -
Page 15: Sensor Storage
Follow the procedures below for entering in the new sensor cap’s coefficients into the 9031M instrument. [Note: The Sensor Cap must remain in a moist environment; see Sensor Storage for storage recommendations. If the sensor cap is allowed to dry out, it is likely to drift slightly at the beginning of your next study unless it is rehydrated. -
Page 16: Error Displays And Troubleshooting
If you are still getting erroneous dissolved oxygen readings, try replacing the sensor cap, enter the new coefficients and then recalibrate. If the erroneous readings continue, contact JENCO Technical Support to help determine the next step. [Note: If the meter still does not perform normally after the above... - Page 17 +50°C. Increase or decrease Temperature values the sample temperature to bring within the allowable range. display Over or Undr. 2. Contact JENCO Tech Support. Possible temperature sensor failure. 1. Verify calibration routine - correct barometric pressure, salinity input, and calibration environment.
-
Page 18: Specifications
SPECIFICATIONS Display Range Resolution Accuracy ±1.5% of reading or Dissolved Oxygen 0.00 to 20.00 0.01 mg/L ±0.15 mg/L mg/L whichever is greater ±1.5% of reading or Dissolved Oxygen ±1.5% air 0.0 to 200.0% 0.1% saturation, % saturation whichever is greater Temperature 0.0 to 50.0 °C 0.1 °C... -
Page 19: Warranty
If you purchased the item from our Jenco distributors and it is under warranty, please contact them to notify us of the situation. - Page 20 6F., NO. 81, Sec.2, Chang-an E. Rd., Jhongshan District, Taipei City 104, Taiwan TEL: 886-2-2508-2928 FAX: 886-2-2508-2938 E-Mail: sales@jenco.com.tw Website: www.jenco.com.tw Shanghai Jenco Instruments, Ltd. 18 Wang Dong Zhong Road Sijing Town, Songjiang Shanghai, China TEL: 86-021-5761-9599 FAX: 86-021-5761-9598 E-Mail: jencos@jenco.com.cn...