EUTECH INSTRUMENTS ALPHA PH 500 PHORP 2-WIRE TRANSMITTER (REVISION 1) Скачать руководство пользователя страница 21 | Manualshive

Страница: 21 / 28

EUTECH INSTRUMENTS ALPHA PH 500 PHORP 2-WIRE TRANSMITTER (REVISION 1) Скачать руководство пользователя страница 21

18

•

Protein deposits

: Prepare a 1% pepsin solution in 0.1 M of HCl. Set

the electrode in the solution for five to ten minutes. Rinse the
electrode with distilled water.

Reactivating the pH electrode

If stored and cleaned properly, your pH electrode should be ready for immediate
use. However, a dehydrated bulb may cause sluggish response. To rehydrate the
bulb, immerse electrode in a pH 4 buffer solution for 10 to 30 minutes. If this fails,
the electrode requires activation.

pH electrode activation (for glass body electrodes only)

WARNING

: Only qualified persons proficient with the safe handling of dangerous

chemicals should perform the procedure below. Provide proper containers, fume
hoods, ventilation, and waste disposal. Safety goggles and protective clothing must
be worn while performing this procedure.

1. Dip or stir the pH electrode in alcohol for 5 minutes.

2. Leave the electrode in tap water for 15 minutes.

3. Dip and stir the electrode in concentrate acid (such as HCL or H

2

SO

4

) for five

minutes.

4. Repeat Step 2.

5. Dip and stir in strong base (NaOH) for five minutes.

6. Leave for 15 minutes in tap water.

7. Now test with standard calibration buffer solutions to see if electrode yields

acceptable results. You may repeat step 3 through 6 up to three times for
better response. If response does not improve, then your electrode is no longer
functioning. Replace with new electrode – call your distributor for information.

«
...
19
20
21
22
23
...
»

Содержание ALPHA PH 500 PHORP 2-WIRE TRANSMITTER (REVISION 1)

Страница 1: ...Instruction Manual pH 500 LCD Transmitter 2 wire pH ORP Transmitter with Display Technology Made Easy 68X216829 03 02 version 1 ...

Страница 2: ...Authorized Distributor Eutech Instruments Oakton Instruments will not accept any responsibility for damage or malfunction to the transmitter caused by improper use of the instrument Remember to fill in the guarantee card and mail it back to your authorized distributor or Eutech Instruments Pte Ltd The information presented in this manual is subject to change without notice as improvements are made...

Страница 3: ...ation 8 5 2 pH Calibration 9 5 3 Relative mV Calibration 10 5 4 Temperature Calibration 10 6 ADVANCED SETUP FUNCTIONS 11 6 1 Offset Setting Unavailable in ORP mode 11 6 2 Output Range Setting 12 6 3 Temperature Compensation Setting Unavailable in ORP mode 13 6 4 HOLD Current Setting 15 6 5 Out of Range Current Setting 15 6 6 Configuration 16 7 PROBE CARE AND MAINTENANCE 17 8 TROUBLE SHOOTING GUIDE...

Страница 4: ...gned to be sturdy and user friendly It is capable of measuring pH mV and temperature This transmitter has many user friendly features all of which are completely accessible through the water resistant membrane keypad Your transmitter includes an instruction manual and a warranty card Please read this manual thoroughly before operating your transmitter MEAS 癈 READY ATC pH ...

Страница 5: ...inserting the wires always hold connector with top screws facing up 1 1 Power Supply Requirements This transmitter requires a 12 to 24V DC power supply Other Transmitters and or a chart recorder may be connected in series Insert positive loop wire from power supply to pin 1 tighten screw Insert negative loop wire to pin 2 tighten screw This wire may be linked to the positive terminal of next trans...

Страница 6: ... wire to pin 4 of connector Tighten screw Insert red wire to pin 5 of connector Tighten screw Insert green wire to pin 6 of connector Tighten screw 2 wire probe Take a small length of wire and short pins 4 and 5 of connector Insert red wire into pin 5 of connector and tighten screws Insert green wire to pin 6 of connector Tighten screw IMPORTANT Temperature probe should always be together with pH ...

Страница 7: ...4 2 INSTALLATION 2 1 Wall Mount ...

Страница 8: ...el cut out of 92 0 mm by 92 0 mm 2 Remove back cover of transmitter and slide it through panel cut out Panel side 3 Attach lugs to either side of transmitter 4 Thread rods through lugs until transmitter is held in place against panel ...

Страница 9: ...alues are displayed in the ORP Calibration mode SETUP MEAS CAL HOLD pH 癈 READY 8 8 8 1 8 8 8ATC pH mV ERR 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1 SETup mode indicator 6 Primary display 11 ERRor indicator 2 MEASurement mode indicator 7 Temperature indicator 12 Probe indicator 3 CALibration indicator 8 pH buffer selection indicator 13 Buffer indicator 4 mV indicator 9 Automatic Temperature Compensatio...

Страница 10: ...easurement mode press CAL to enter mV Calibration mode 1 To scroll through the various submenus 2 To increment decrement values or toggle between options in the SETUP CAL modes 3 When pressed together serves as escape function to return to MEAS mode from any point CAL or SETUP modes ENT 1 To confirm your calibration values in Calibration mode 2 To confirm selections in SETUP mode While in MEAS mod...

Страница 11: ...Wash your electrode in deionized water after use and store in electrode storage solution If storage solution is not available use pH 4 01 or 7 00 buffer solution Do not reuse buffer solutions after calibration Contaminants in the solution can affect the calibration and eventually the accuracy of the measurements The transmitter features two internationally recognized buffer standards Select the bu...

Страница 12: ...ers This is the first point Offset calibration 5 Wait for measured pH value to stabilize Press ENTER to confirm calibration Transmitter is now calibrated to current buffer 6 Rinse probe with de ionized water or rinse solution and place in next pH buffer pH 4 01 pH 9 18 or pH 10 01 7 Repeat steps 5 and 6 8 Upon successful Calibration transmitter displays Slope primary display in mV and Offset secon...

Страница 13: ...ve mV value that matches your desired reading only the readings in the primary display changes 3 Press ENTER key to confirm Transmitter will now display the offset in the readings 4 Press ENTER key to return to MEAS mode 4 4 Temperature Calibration Only available in the pH mode and ATC probe is available Calibrate temperature probe only if temperature value displayed on transmitter is different fr...

Страница 14: ...urement and the application concerned it may not be convenient to remove the electrode for calibration In such cases an on line Offset adjustment is offered 1 Press ENT key Transmitter displays OFS Press ENT again Upper display shows amount of offset in terms of pH lower display shows current measured pH value 2 Use or keys to introduce offset to pH readings As the lower measured reading changes u...

Страница 15: ...plays r n g Press ENT again Upper display shows pH value 0 00 or 1000 mV while lower display shows r 4 0 2 Assign pH or ORP value to 4 mA output current Use or keys to change pHor ORP value Press ENT to accept value 3 Upper display shows pH value 14 00 or 1000 mV while lower display shows r 20 0 4 Assign pH or ORP value to 20 mA output current Use or keys to change pH or ORP value Press ENT to acc...

Страница 16: ...emperature readings are inaccurate calibrate temperature probe as described in steps 4 and 5 If temperature readings are correct press ENT key and go to step 6 4 Use S or T keys to adjust correct temperature value i e temp of temp bath Readings can be adjusted in increments of 0 1 C Maximum adjustments allowed is 5 o C 5 Once you have adjusted the correct temperature press ENT key 6 Press S and T ...

Страница 17: ...t temperature of your calibration solutions Press ENT key 6 Press S and T keys together to return to MEAS mode The transmitter will now compensate pH readings for the manually set temperature values taken from P o C SETUP HOLD SETUP HOLD SETUP HOLD 癈 ATC SETUP HOLD SETUP HOLD SETUP HOLD Temperature Compensation Setting Chart alpha pH 500 Transmitter ...

Страница 18: ...urn to MEAS mode NOTE If HLd is set to OFF then current output will be equivalent to last measured value 5 5 Out of Range Current Setting If pH or ORP readings exceed the scale LCD displays Or over range or Ur under range Transmitter current output can be set to 3 8 mA to indicate Out of Range situation 1 Press ENT key and use or keys to scroll till LCD displays SEt in the upper display and org in...

Страница 19: ...roceed to Section 6 6 2 for a possible solution 5 6 2 Selecting Asymmetrical or Symmetrical Mode of Operation In some applications there may be some electrical interference in the sample where the electrode is installed The sensitive electrode picks up the signal and the effect is displayed on the LCD If the electrical interference is from an AC source the readings on the LCD fluctuates wildly If ...

Страница 20: ... water 2 Store the electrode as recommended above in pH electrode storage or as recommended by the manufacturer 3 Prior to next use rinse the liquid junction with de ionized water and tap dry never wipe electrode NOTE If this does not restore electrode to normal response see Reactivating the pH electrode section below pH electrode cleaning Salt deposits Dissolve the deposits by immersing the elect...

Страница 21: ...hemicals should perform the procedure below Provide proper containers fume hoods ventilation and waste disposal Safety goggles and protective clothing must be worn while performing this procedure 1 Dip or stir the pH electrode in alcohol for 5 minutes 2 Leave the electrode in tap water for 15 minutes 3 Dip and stir the electrode in concentrate acid such as HCL or H2SO4 for five minutes 4 Repeat St...

Страница 22: ...ngs a Air bubbles in probe b Dirty probe c Probe not deep enough in sample d External noise pickup or induction caused by nearby electric motor e Severe Reference junction fouling a Tap probe to remove bubbles b Clean the probe and re calibrate c Make sure sample entirely covers the probe sensors d Switch to Symmetrical mode and connect PMP e Replace probe Slow response a Dirty Oily probe a Clean ...

Страница 23: ...nsation Auto Pt 100 Manual from 0 to 100 C Number of calibration points 2 Number of calibration buffers USA 4 01 7 00 10 01 NIST 4 01 6 86 9 18 Inputs Asymmetrical Symmetrical Output 4 0 to 20 0 mA Over Under range current output ON Select 3 8 mA OFF Select 4 mA under range 20 mA over range HOLD current output ON Select 22 mA OFF Select Last measured current value Display Custom Dual LCD Power Req...

Страница 24: ...21 9 TECHNICAL DIMENSIONS ...

Страница 25: ...fer solution 480 ml bottle EC BU 7BT pH 7 00 buffer solution 480 ml bottle EC BU 10BT pH 10 01 buffer solution 480 ml bottle EC BU 4BS pH 4 01 buffer sachets 20 ml x 20 pcs EC BU 7BS pH 7 00 buffer sachets 20 ml x 20 pcs EC BU 10BS pH 10 01 buffer sachets 20 ml x 20 pcs EC RIN WT pH De ionized water rinse sachets 20 ml x 20 pcs EC AST PK pH sachet assortment pack 5 each of pH 4 01 pH 7 00 pH 10 01...

Страница 26: ...ml bottle pH 7 00 buffer solution 480 ml bottle pH 10 01 buffer solution 480 ml bottle pH 4 01 buffer sachets 20 ml x 20 pcs pH 7 00 buffer sachets 20 ml x 20 pcs pH 10 01 buffer sachets 20 ml x 20 pcs pH De ionized water rinse sachets 20 ml x 20 pcs pH sachet assortment pack 5 each of pH 4 01 pH 7 00 pH 10 01 and de ionized water sachets per box Protein cleaning solution for pH electrode Storage ...

Страница 27: ...maintenance by customer Unauthorized modification or misuse Operation outside of the environment specifications of the products 12 RETURN OF ITEMS Authorization must be obtained from our Customer Service Department or authorized distributor before returning items for any reason A Return Goods Authorization RGA form is available through our authorized distributor Please include data regarding the r...

Страница 28: ...d Blk 55 Ayer Rajah Crescent 04 16 24 Singapore 139949 Tel 65 6778 6876 Fax 65 6773 0863 E mail marketing eutechinst com Web site http www eutechinst com Oakton Instruments P O Box 5136 Vernon Hills IL60061 USA Tel Toll free 1 888 4OAKTON 1 888 462 5866 Fax 1 847 247 2984 Email info 4oakton com Website www 4oakton com DISTRIBUTED BY ...

Отзывы:

Нет отзывов