DOC022.53.00768 LDO™ Sensor Replacement Kit For use with Hach LDO101 Standard and Rugged Dissolved Oxygen Probes User Manual © HACH Company, 2006. All rights reserved. Printed in the U.S.A.
LDO™ Sensor Replacement for LDO101 Probes Each LDO sensor cap replacement kit comes with a sensor-specific calibration update iButton®. When the iButton is installed in the pressuresensor module (located on the LDO101 probe cable), the probe calibration is updated for the new sensor cap. The kit includes: • Sensor cap with O-ring and seal • Calibration update iButton Replacing the Sensor Cap and iButton 1. Disconnect the LDO101 probe from the meter.
LDO™ Sensor Replacement for LDO101 Probes, continued 4. Position the new cap seal on the probe body with the narrow shoulder of the seal facing the probe tip (Figure 1). Slide the seal until it rests against the probe body threads. 5. Place the new O-ring into the groove at the sensor tip (Figure 1). Do not touch the sensor lens. Note: If the sensor lens is soiled, rinse with dilute isopropyl alcohol or deionized water and blot completely dry. Do not wipe the lens or use abrasive cleaners. 6.
LDO™ Sensor Replacement for LDO101 Probes, continued 8. Pull to open the iButton®* cover on the pressure-sensor module (Figure 1). Tip the module to remove the existing iButton. 9. Verify that the lot code printed on the new iButton matches the lot code on the new sensor cap (Figure 2). 10. Insert the new iButton with the paper label facing up. 11. Close the iButton cover and press until it seats against the surface of the module housing.
LDO™ Sensor Replacement for LDO101 Probes, continued Figure 1 LDO101 Standard Probe—Sensor Cap and iButton 1 Sensor Cap 6 1- or 3-meter Cable 2 O-ring 7 iButton 3 Sensor Lens 8 iButton Cover 4 Cap Seal 9 Pressure-sensor Module 5 Temperature Sensor 10 Location for Color-code Clips 6
LDO™ Sensor Replacement for LDO101 Probes, continued Figure 2 Sensor Cap 1 Lot Code on Sensor Cap 7
LDO™ Sensor Replacement for LDO101 Probes, continued Replacement Parts Description Quantity Catalog Number LDO Sensor Replacement Kit for LDO101 Probes 1 58112-00 Instruction Manual for Sensor Replacement 1 58112-89
