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CONTENTS GENERAL INTRODUCTION………………....12 INITIAL INSPECTION……...………………....12 WATER PROOF…….……...………………....12 INSTALLING THE BATTERIES..…………....13 DISPLAY & KEYS FUNCTIONS…..……………...……14 ..............14 A. Display ..............15 B. Keys OPERATIONAL PROCEDURES..…….......16 ..........16 A. Probe Preparation .......17 B. Dissolved Oxygen Calibration ......17 C. Dissolved Oxygen Measurements .........18 D. Save, Recall and Delete Data ERROR DISPLAYS AND TROUBLESHOOTING..19 SPECIFICATIONS………………..……......19 WARRANTY…………………………......20...
This meter is user-friendly for field, industrial and laboratory applications. INITIAL INSPECTION Carefully unpack the unit and accessories. Inspect for damages made in shipment. If any damage is found, notify your Jenco representative immediately. All packing materials should be saved until satisfactory operation is confirmed. WATER PROOF Though the 9020M meter is housed in a watertight case, DO NOT use it underwater.
2. Wait for the unit and probe to dry completely before resuming operation. 3. If the unit does not function correctly after steps1 and 2, call JENCO for possible repair or replacement (see Warranty). INSTALLING THE BATTERIES The 9020M meter is packaged with one 9V battery required for operation.
DISPLAY & KEYS FUNCTIONS A. Display Figure 2: Active LCD screen 8. mBar- 1. BAT- Display during calibration to Low battery indicator. prompt user for barometric pressure. 2. Save- 9. %/ppm- To save a reading into the data Unit indicators. storage.
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 saturation, Dissolved Oxygen in ppm (mg/L), Recall and Delete interface. In calibration mode, press this key to exit the current calibration parameter and enter into the next one.
OPERATIONAL PROCEDURES A. Probe Preparation (A) Lead (B) Cover Cap (C) Membrane (D) Guard Cap 1. Remove guard cap. 2. Remove the old membrane and clean top of cover cap. 3. Place new membrane over top of cover cap and press tight guard cap, trim excessive membrane 4.
B. Dissolved Oxygen Calibration The 9020M can be calibrated quickly and easily in air. Connect the DO probe LD-900G-1 to the unit and turn the unit on. Rinse the probe well with distilled water. For best accuracy, wipe the end of the probe dry. Do not touch the membrane. Hold the probe in the air gently with the sensor facing down and press “MODE”...
D. Save, Recall and Delete Data Saving readings to memory. In “Measurement” mode, press the “ENTER” key to save data. The “Save” icon with the corresponding site number will lit up for a brief moment to indicate a successful data save. If the “Full”...
"Udr" 1. Heat the sample to above -6.0℃. “Ovr” 1. Cool the sample to below 46.0℃. [Note: If the meter still does not perform normally after the above measures are taken, call Jenco Service Department.] SPECIFICATIONS Display Range Resolution Accuracy Dissolved Oxygen 0 to 20.00 ppm...
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