Ysi 85 manual

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If the hand strap is adjusted correctly, it is unlikely that the instrument will be easily dropped or bumped from your hand. See figure on previous page. To adjust the hand strap on the back of the meter, unsnap the vinyl cover and pull the two Velcro strips apart. Place your hand between the meter and the strap and adjust the strap length so that your hand is snugly held in place. Press the two Velcro strips back together and snap the vinyl cover back into place. The meter case is sealed at the factory and is not intended to be opened, except by authorized service technicians.

Do not attempt to separate the two halves of the meter case as this may damage the instrument, break the waterproof seal, and will void the manufacturer's warranty. The YSI Model 85 dissolved oxygen probe is shipped dry. The protective membrane cap on the probe tip must be removed and replaced with KCl solution and a new membrane cap before using the probe.

Follow the instructions below to install KCl solution and the new membrane cap. Unscrew and remove the probe sensor guard. Unscrew and remove the old membrane cap. Thoroughly rinse the sensor tip with distilled water.

Prepare the electrolyte according to the directions on the KCl solution bottle. Screw the membrane cap onto the probe moderately tight. A small amount of electrolyte should overflow. Screw the probe sensor guard on moderately tight. The following diagram is an overview of the operation of the Model See the following sections for details of operation.

To accurately calibrate the YSI Model 85 you will need to know the approximate altitude of the region in which you are located. Ensure that the sponge inside the instrument's calibration chamber is wet. Insert the probe into the calibration chamber. Wait for the dissolved oxygen and temperature readings to. The LCD will prompt you to enter the local altitude in hundreds of feet.

Use the arrow keys to increase or decrease the altitude. Each time the Model 85 is turned off, it may be necessary to re-calibrate before taking measurements. All calibrations should be completed at a temperature which is as close as possible to the sample temperature.

Dissolved oxygen readings are only as good as the calibration. However, from time to time it is wise to check the system calibration and make adjustments when necessary. Prior to calibration of the YSI Model 85, it is important to remember the following:. When filling a calibration container prior to performing the calibration procedures, make certain that the level of calibrant buffers is high enough in the container to cover the entire probe.

Gently agitate the probe to remove any bubbles in the conductivity cell. Rinse the probe with distilled water and wipe dry between changes of calibration solutions. During calibration, allow the probe time to stabilize with regard to temperature approximately 60 seconds before proceeding with the calibration process.

The readings after calibration are only as good as the calibration itself. This will minimize any temperature compensation error. Turn the instrument on and allow it to complete its self-test procedure. Select a calibration solution that is most similar to the sample you will be measuring.

Place at least 3 inches of solution in a clean glass beaker. Use the MODE button to advance the instrument to display conductivity. Insert the probe into the beaker deep enough so that the oval-shaped hole on the side of the probe is completely covered.

Allow at least 60 seconds for the temperature reading to become stable. Move the probe vigorously from side to side to dislodge any air bubbles from the electrodes. The CAL symbol will appear at the bottom left of the display to indicate that the instrument is now in Calibration mode. The YSI Model 85 is designed to retain its last conductivity calibration permanently. Therefore, there is no need to calibrate the instrument after battery changes or power down. Welcome to ManualMachine. We have sent a verification link to to complete your registration.

Log In Sign Up. Forgot password? Enter your email address and check your inbox. Please check your email for further instructions. Enter a new password. YSI, Incorporated Model 85 1. Introduction Section 1. YSI, Incorporated Model 85 2. Preparing the Meter Section 2 NOTE: On some models, the battery cover thumbscrew may be unscrewed by hand a screwdriver may not be required. YSI, Incorporated Model 85 4. YSI, Incorporated Model 85 5.

Preparing the Meter Section 2. YSI, Incorporated Model 85 6. Preparing the Probe Section 3. YSI, Incorporated Model 85 8. YSI, Incorporated Model 85 9. Overview of Operation Section 4. YSI, Incorporated Model 85 Calibration Section 5 5.

Prior to calibration of the YSI Model 85, it is important to remember the following: 1. Follow these steps to perform an accurate calibration of the YSI Model 1.

Calibration Section 5 Calibration Section 5. You can only view or download manuals with. Sign Up and get 5 for free. Upload your files to the site. You get 1 for each file you add.