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IOP 011B.9
Effective Date: 1/09/2017
Replaces IOP 011B.8
Page 1 of 4
INSTRUMENT:
Dissolved oxygen meter
MODEL:
55
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 the
membrane. Static electricity may affect readings.
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
U.S.A.
and
Department of Fisheries and Oceans
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 WILDLIFE 55
Summary of Contents for WILDLIFE 55
- Page 1 IOP 011B.9 Effective Date: 1/09/2017 Replaces IOP 011B.8 Page 1 of 4 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 U.S.A.
- Page 2 IOP 011B.9 Effective Date: 1/09/2017 Page 2 of 4 PROCEDURES: Meter preparation At initial set-up six AA-size batteries are installed. Use a screwdriver or coin to remove the thumbscrew on the bottom of the meter. Open the battery-chamber cover. Install the batteries according to the label on the battery-chamber sleeves. Press and release the ON/OFF button on the front of the instrument.
- Page 3 When 0 appears on the LCD, press the ENTER key. It may be necessary to re-calibrate the instrument each time the YSI Model 55 is turned off. Complete all calibrations at a temperature as close as possible to the sample temperature.
- Page 4 Battery replacement - see section I.A. Membrane replacement - see section I.C. REFERENCE: Operations Manual YSI Model 55 Handheld Dissolved Oxygen System This procedure has been reviewed and approved by the undersigned representatives of the U.S. Fish and Wildlife Service.
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