Emerson Rosemount Hx338+ Скачать руководство пользователя страница 17 | Manualshive

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Emerson Rosemount Hx338+ Скачать руководство пользователя страница 17

5

Troubleshooting

5.1

Cleaning or replacing the electrodes

Electrodes should respond rapidly. Sluggishness, offsets, and erratic readings are
indicators that the electrodes may need cleaning or replacement.
1.

Use a mild non-abrasive detergent to clean and remove oil deposits from the
electrode.

2.

Soak electrodes for 30 to 60 minutes in a 5% hydrochloric acid solution to remove
scale deposits.

Temperature effect on life expectancy: If glass electrode life expectancy is 100% at
25 °C (77 °F), then it will be approximately 25% at 80 °C (176 °F), and approximately
5% at 120 °C (248 °F).

Troubleshooting

Rosemount Hx338+ pH Sensor

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Содержание Rosemount Hx338+

Страница 1: ...Quick Start Guide LIQ QSG 338 Rev BB January 2018 Rosemount Hx338 Steam Sterilizable and Autoclavable Pre Pressurized pH Sensor ...

Страница 2: ...orm and educate your personnel in the proper installation operation and maintenance of the product Install your equipment as specified in the installation instructions of the appropriate manual and per applicable local and national codes Connect all products to the proper electrical and pressure sources Install your equipment as specified in the Installation section and per applicable local and na...

Страница 3: ...ng information 4 Chapter 2 Install 5 2 1 Installing the sensor 5 Chapter 3 Wiring 7 3 1 Wiring the Rosemount Hx338 pH Sensor 7 Chapter 4 Calibration and maintenance 11 4 1 Two point buffer calibration 11 4 2 Recommended pH sensor standardization 11 4 3 Electrode refresh procedure 12 Chapter 5 Troubleshooting 13 5 1 Cleaning or replacing the electrodes 13 Contents Rosemount Hx338 pH Sensor i ...

Страница 4: ...Contents ii Quick Start Guide ...

Страница 5: ...ectrodes must be followed to ensure correct measurements 1 Store the electrodes in their original shipping containers until needed 2 Do not store at temperatures below 5 C 23 F 3 Store the electrodes with a protective cap containing KCI solution PN 9210342 4 For overnight storage immerse the sensor in tap water or 4 pH buffer solution 5 Use the startup and calibration procedure described in Sectio...

Страница 6: ...tivity of sample 100 µS cm Zero point 0 20 mV Sensitivity 57 59 mV pH at 25 C 77 F Electrolyte Pressurized Temperature sensor Pt 100 WARNING Do not exceed temperature and pressure limitations of 140 C 284 F and 6 bar WARNING Before removing the sensor be absolutely certain that the process pressure is reduced to 0 psig and the process temperature is lowered to a safe level WARNING CORROSIVE SUBSTA...

Страница 7: ... operating conditions Application compatibility is entirely your responsibility 1 4 Rosemount Hx338 pH Sensor design specifications See Figure 1 1 for sensor dimensions Rosemount Hx338 01 72 Dimensional Drawing Figure 1 1 A VP 6 0 plug B SW 19 free spinning PG13 5 screw thread C Washer D O ring Plan Rosemount Hx338 pH Sensor 3 ...

Страница 8: ... 6 m VP8 cable 24281 02 2 5 ft 0 8 m VP8 cable 24281 05 4 ft 1 2 m VP8 cable 24281 06 10 ft 3 0 m VP8 cable 24281 07 20 ft 6 1 m VP8 cable 24281 08 30 ft 9 1 m VP8 cable Mounting accessories Part number Description 9160478 Insertion assembly 2 75 in 70 mm insertion for 4 72 in 120 mm sensor G 1 1 4 in 9160483 15 degree weld in socket G 1 1 4 in thread 44 mm 9160484 Service kit for insertion mounti...

Страница 9: ...cal pipe run with flow from bottom to top If the sensor must be mounted in a horizontal pipe run orient the sensor in the 3 o clock or 9 o clock position 2 Orient the sensor within 80 of vertical See Figure 2 1 Sensor Orientation Figure 2 1 Install Rosemount Hx338 pH Sensor 5 ...

Страница 10: ...Install 6 Quick Start Guide ...

Страница 11: ...semount 56 Rosemount 1056 Rosemount 1057 Rosemount 1066 and Rosemount 5081 transmitters 1 See Figure 3 1 to wire the Rosemount Hx338 pH Sensor to the Rosemount 56 1056 or 1057 Transmitter Wire the Rosemount Hx338 pH Sensor to the Rosemount 56 1056 or 1057 Transmitter Figure 3 1 Wiring Rosemount Hx338 pH Sensor 7 ...

Страница 12: ...2 See Figure 3 2 to wire the Rosemount Hx338 pH Sensor to the Rosemount 1066 Transmitter Wire the Rosemount Hx338 pH Sensor to the Rosemount 1066 Transmitter Figure 3 2 Wiring 8 Quick Start Guide ...

Страница 13: ... See Figure 3 3 to wire the Rosemount Hx338 pH Sensor to the Rosemount 5081 Transmitter Wire the Rosemount Hx338 pH Sensor to the Rosemount 5081 Transmitter Figure 3 3 Wiring Rosemount Hx338 pH Sensor 9 ...

Страница 14: ...Wiring 10 Quick Start Guide ...

Страница 15: ...e transmitter 2 Once the first buffer has been acknowledged by the transmitter rinse the buffer solution off of the sensor with distilled or deionized water 3 Repeat steps 1 and 2 using the second buffer solution The theoretical slope value according to the Nernst equation for calculating pH is approximately 59 17 mV pH Over time the sensor will age both in the process and in storage and this will...

Страница 16: ... date of manufacturing on a worksheet Remove sensor from the package Inspect the connection electrode and glass for any defects or scratches and remove the cap by relieving the rubber gasket Procedure 1 Clean the sensor with water bottled or mineral water is recommended 2 Place the sensor electrodes into the NaOH solution for 10 minutes 3 Rinse the electrodes with water 4 Place the electrodes into...

Страница 17: ...1 Use a mild non abrasive detergent to clean and remove oil deposits from the electrode 2 Soak electrodes for 30 to 60 minutes in a 5 hydrochloric acid solution to remove scale deposits Temperature effect on life expectancy If glass electrode life expectancy is 100 at 25 C 77 F then it will be approximately 25 at 80 C 176 F and approximately 5 at 120 C 248 F Troubleshooting Rosemount Hx338 pH Sens...

Страница 18: ...Troubleshooting 14 Quick Start Guide ...

Страница 19: ...Troubleshooting Rosemount Hx338 pH Sensor 15 ...

Страница 20: ...A Emerson Automation Solutions Emerson FZE Jebel Ali Free Zone Dubai United Arab Emirates P O Box 17033 T 971 4 811 8100 F 971 4 886 5465 liquid csc emerson com ASIA PACIFIC Emerson Automation Solutions 1 Pandan Crescent Singapore 128461 Singapore T 65 777 8211 F 65 777 0947 liquid csc emerson com Linkedin com company Emerson Automation Solutions twitter com rosemount_news Facebook com Rosemount y...

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