Related Manuals for Omega DOH-10 Series
Summary of Contents for Omega DOH-10 Series
- Page 1 User’ s Guide Shop online at omega.com e-mail: info@omega.com For latest product manuals: omega.com/en-us/pdf-manuals DOH-10 Series Handheld Dissolved Oxygen Meter Kit with Optional SD Card Data Logger...
- Page 2 Fax: (203) 359-7700 e-mail: info@omega.com For Other Locations Visit omega.com/worldwide The information contained in this document is believed to be correct, but OMEGA accepts no liability for any errors it contains, and reserves the right to alter specifications without notice.
-
Page 3: General Specification
FEATURES: Professional look design portable meters with large LCD display, Meter is designed with BNC connector compatible to any DO galvanic electrode. Hold function, power capacity icon indicator, and automatic power off in 15 minutes and may disable. RFS (Recover to Factory Setting) function is included. -
Page 4: Button Description
DO ELECTRODE SPECIFICATION: Temperature 0~90 ℃ Temp. accuracy ±0.5 ℃ DO (Dissolved Oxygen) Electrode Measurement range 0~199.9% (In saturation); 0.0~20.0 mg/L Accuracy ±2% of full scale + 1 digit Resolution 0.1%, 0.1 mg/L Calibration 100% Air-Saturated Flow condition 0.3 mL/s Dimension 12x120mm Electrode body... - Page 5 Power supply: 1. AAA batteries x 3pcs. Battery icon indicates when power is weak, replace with new batteries immediately as the readings now on LCD are incorrect due to weak power. ▲Battery life: Approx. 480 hours for continuous used. . 2.
- Page 6 “ATC” ICON INDICATION Electrode type ntc 10K (Default) ntc 30K Plug in Temp. XX.X Temp. XX.X Manual temp. “─ ─ ─” “─ ─ ─” Un-plugged ATC icon DO (Dissolved Oxygen) CALIBRATION: Calibration is necessary before measurement, please refer to the following calibration procedures: A) Required Equipment: 1) DO electrode.
- Page 7 3) Rinse the Membrane Module with distilled water and blot dry with a clean lab wipe. 4) Clip one membrane from white protective round paper. 5) May use tweezers to put the membrane between the membrane cap and membrane base. (See the below picture) 6) Push the membrane cap downward gently until it won’t lose.
- Page 8 9) After filling the electrolyte solution and screw the membrane cap, please find the insulation tape to seal the seam of the sensor head to reduce solution leakage, please refer to the picture below: Insulation tape 10) Check the membrane module to see whether there are air bubbles in it. If found there are air bubbles, knock on the membrane cap carefully to dispel them.
-
Page 9: Salinity Correction
C-2) Zero Dissolved Oxygen Calibration: (Laboratory calibration with Na powder) NOTE: Generally need to do zero oxygen calibration in the situation of replacing new electrode, replacing membrane cap, and long time without using. To do zero dissolved oxygen calibration by the following steps: 1) Connect the electrode to the meter. -
Page 10: Auto Power Off
SET: ← to left digit CAL: → to right digit Adjustable range is 400 to 850 mmHg. 2) After setting completed, press and hold MODE button to save setting, screen shows “SA” to complete setting. To escape the setting by press and hold SET button, screen shows “ESC” and return to normal measurement mode. - Page 11 CHART 1. Solubility of Oxygen (mg/L) in Water Exposed to Water-Saturated Air at 760 mmHg Pressure Salinity (ppt) Salinity (ppt) Temp. Temp. 18.1 27.1 36.1 45.2 18.1 27.1 36.1 45.2 14.62 13.73 12.89 12.1 11.36 10.66 26.0 8.11 7.71 7.33 6.96 6.62 6.28...
-
Page 12: Sd Card Datalogging
SD CARD DATALOGGING SD Card Information Insert an SD card (8G supplied) into the SD card slot at the side of the meter. SD card must be placed with the front of the card (label side) facing toward the front of the meter. Once SD card is inserted properly, icon “SD”... - Page 13 Month Date 4. Re-power on the meter to back to normal measurement mode. NOTE: To escape setting by turning off the meter without any change. Setting the datalogger sampling rate Hour 1. While meter is power on, press and hold MODE button to enter setting. 2.
- Page 14 MANUAL DATALOGGING (MAX 199 POINTS) 1. Set the sampling rate to “0” (Refer to “Setting the datalogger sampling rate”). 2. In the manual mode, data is logged when press and hold ADJ button and screen shows recorded points “00X” in the temp.
-
Page 15: Troubleshooting
Troubleshooting If the electrode reading is not at (or very close to) zero in oxygen-free Dl water, then polish the tip (cathode) of the electrode. If the electrode readings are not within the normal ranges given above, or the electrode reading drifts, inspect the Membrane Module. - Page 16 Department will issue an Authorized Return (AR) number immediately upon phone or written request. Upon examination by OMEGA, if the unit is found to be defective, it will be repaired or replaced at no charge. OMEGA’s WARRANTY does not apply to defects resulting from any action of the purchaser, including but not limited to mishandling, improper interfacing, operation outside of design limits, improper repair, or unauthorized modification.