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IOP 011C.3
Effective Date: 1/09/2017
Replaces IOP 011C.2
Page 1 of 6
INSTRUMENT:
Dissolved oxygen meter
MODEL:
Pro 20
MANUFACTURER:
Yellow Springs Instrument Co., Inc.
PRECAUTIONS:
POTENTIAL INTERFERENCES
Chlorine, sulfur dioxide, nitric oxide, and nitrous oxide can affect readings by behaving like oxygen at
membrane. Static electricity may affect readings.
Gold Cathode - The gold cathode on the sensor must be textured properly. It may becomes tarnished or
plated with silver after extended periods of use.
Bubbles under the membrane cap.
Remove excessive water in calibration/storage sleeve.
SAFETY
No Special precautions
INSTRUMENT OPERATING PROCEDURE
U.S. Fish and Wildlife Service
Marquette Biological Station
3090 Wright Street
Marquette, Michigan 49855
U.S.A.
and
U.S. Fish and Wildlife Service
Ludington Biological Station
5050 Commerce Drive
Ludington, Michigan 49431
and
Fisheries and Oceans Canada
Sea Lamprey Control Centre
1219 Queen Street East
Sault Ste. Marie, Ontario P6A 2E5
Canada
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Table of Contents
Related Manuals for YSI Pro20
Summary of Contents for YSI Pro20
- Page 1 IOP 011C.3 Effective Date: 1/09/2017 Replaces IOP 011C.2 Page 1 of 6 U.S. Fish and Wildlife Service Marquette Biological Station 3090 Wright Street Marquette, Michigan 49855 U.S.A. U.S. Fish and Wildlife Service Ludington Biological Station 5050 Commerce Drive Ludington, Michigan 49431 Fisheries and Oceans Canada Sea Lamprey Control Centre 1219 Queen Street East...
- Page 2 Program the DO meter to allow it to recognize the Poloragraphic 2003 model probe (engraved on the side of sensor body). See the system setup menu section of the Pro20 Instruction Manual for directions. This procedure is done only during initial setup or when changing probe models.
- Page 3 Store at -5 to 70C. Pro20 Key Pad Functions. Refer to the Pro20 Instruction Manual to setup meter configuration prior to initial use. Backlight key (☼); after the unit is turned on, press the star key. The backlight will remain on for 2 minutes unless the star key is pressed again.
- Page 4 IOP 011C.3 Effective Date: 1/09/2017 Page 4 of 6 Accessing highlighted options; use the ENTER --- key. ◄ Calibration key; Cal, used for calibrating the meter. The menu key, used for accessing the system setup functions. III. Calibration Ensure that the following is completed before calibrating; the barometer is reading accurately and the sponge is wet in the probe calibration/sleeve.
- Page 5 Measurements Insure the cable/probe is connected to the meter. Be sure the YSI Pro20 DO Meter has been calibrated. Turn the instrument on and wait 10-15 minutes while the probe remains in the calibration/storage sleeve.
- Page 6 Digitally signed by JESSICA BARBER Jessica M. Barber Date: 2020.03.10 11:01:23 -04'00'...
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