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pHix® Compact

EN 4.10  Version 2007

Mounting / Eletrical mounting

19

US ONLY

ALL OTHERS

pHix® Compact is mounted correctly when the electrode tip is emerged min. 
½" in / 10 mm

 

under the pipes inner pipe wall.

Eletrical mounting

Electrical mounting in general

pHix® Compact must not be installed in explosion hazardous locations!

pHix® Compact should be connected to an active 4-20 mA input or supplied 
from a separate 12-30 VDC voltage source.
Max power consumption is 50 mW.
pHix® Compact 4-20 mA output(s) is galvanically separated from the liquids 
potential.

Signal cable

pHix® Compact comes with either 1 or 2 galvanically separated signal outputs.

pHix® Compact with 1 x 4-20 mA output for pH or redox measurement.

Содержание MJK pHix Compact

Страница 1: ...Manual EN 4 10 Version 2007 pHix Compact PH REDOX TRANSMITTER...

Страница 2: ...pHix Compact EN 4 10 Version 2007 2 Your notes...

Страница 3: ...systems 16 Mounting on pipe socket 17 Eletrical mounting 19 Electrical mounting in general 19 Signal cable 19 Cutting the signal cable 20 Extending the signal cable 21 Connection examples 22 Local di...

Страница 4: ...pHix Compact EN 4 10 Version 2007 4 Appendencies 36 Error codes 36 Standard transmitter configuration 36 HART commands 37...

Страница 5: ...pHix Compact EN 4 10 Version 2007 Declaration of conformity 5 Declaration of conformity...

Страница 6: ...ittings You can always contact your representative or the MJK Service Hotline for advice and guidance Also take a look at www mjk com1 pHix Compact is registered trademark of MJK Measurements and stan...

Страница 7: ...gnal can be read HART communication gives the possibility to configure nearly all parameters like measuring ranges alarm limits electrode parameters and also commands for buffer adjustment HART commun...

Страница 8: ...ix Compact EN 4 10 Version 2007 Introduction Product identification 8 1 2 3 4 Item number Item description Serial number Electrode specification An identical marking is found on the pH transmitter cab...

Страница 9: ...ring range for the actual electrode pH electrode item no 160310 1 14 pH 50 176 F 10 80 C 0 4 6 pH pH electrode item no 160311 1 14 pH 50 176 F 10 80 C 0 7 0 pH Redox electrode item no 160312 176 F 0 8...

Страница 10: ...st not become dry Therefore do not remove the protective cap before before commissioning of pHix Compact Gasket and O ring It is very important that both gasket and O ring and packing surfaces are cle...

Страница 11: ...clean and dry Lubricate the O ring in acid free grease or Vaseline Check that the O ring is placed correctly in the recess of the new electrode Check that the hole for the electrode in the pHix Compac...

Страница 12: ...or stainless steel EN 1 4404 ASTM 316L and because of this it has a tremendous resistance against chemicals pHix Compact can without any further preparation be used for measuring in solvents and stron...

Страница 13: ...Version 2007 Mounting Mechanical mounting 13 THE US ALL OTHERS pHix Compact has class IP 68 NEMA 6X enclosure and therefore withstands submersion into open system to a max pressure of 14 psi or 30 ft...

Страница 14: ...psi 5 bar Mounting in open channels and reservoirs Due to the lifetime of the electrode and measurement accuracy the following should be complied with when mounting pHix Compact pHix Compact should b...

Страница 15: ...Mounting Mechanical mounting 15 Mounted on a pipe end When measuring pHix Compact should be firmly fixed Fixed mounting can be made by means of a pipe with 5 4 inner thread ISO 228 1 and screwing pHi...

Страница 16: ...mersion bracket item no 155205 which is fastened with universal bracket item no 200205 and wall bracket item no 200215 Mounting in closed systems The electrode is filled with a liquid which should cov...

Страница 17: ...al of the switch ring Pull off the switch ring Put on the union Put on the switch ring if needed The switch ring is only used for buffer adjustment calibration but it is also possible to perform a buf...

Страница 18: ...emoval of pHix Compact The working pressure of the system must not exceed 72 psi 5 bar g The working temperature of the system must not exceed 176 F 80 C See also the following illustrations for corre...

Страница 19: ...Hix Compact must not be installed in explosion hazardous locations pHix Compact should be connected to an active 4 20 mA input or supplied from a separate 12 30 VDC voltage source Max power consumptio...

Страница 20: ...able according to the specifications in the following before connecting pHix Compact pHix Compact with 2 x 4 20 mA outputs one for pH or redox measurement and one for temperature measurement Nr Design...

Страница 21: ...sting cable except that it should be shielded and that the voltage drop should not be too big Note pHix Compact is a passive transmitter Considerations should be taken regarding the voltage drop over...

Страница 22: ...pHix Compact EN 4 10 Version 2007 Mounting Connection examples 22 MJK connection box item no 200590 Connection examples Local display...

Страница 23: ...pHix Compact EN 4 10 Version 2007 Mounting Connection examples 23 Connection to PLC_PLS...

Страница 24: ...of 4 and 7 acidic range or pH values of 7 and 10 alcalic range For measurements around pH 7 neutral both buffers can be used The sequence of different pH buffer solutions is not important pHix Compact...

Страница 25: ...th pH and redox calibration The pH value of the buffer liquid is dependent of the temperature and the stated pH value is valid at 77 F 25 C Buffer liquid has a limited lifetime Buffer liquid for pH 4...

Страница 26: ...The switch ring has four positions and must only be set to one of these positions in order to obtain correct function Positio n Function M Measurement The switch ring should always be in this positio...

Страница 27: ...pH 7 10 pH Example of buffer adjustment in pH 4 and 7 With the switch ring in position M flush the electrode tip in water Carefully wipe of the electrode tip with a cloth Never use materials that can...

Страница 28: ...he tilt switch Remember to clean the electrode as described earlier Only the built in tilt switch is active when the switch ring has been removed for more than 10 minutes The tilt switch inside pHix C...

Страница 29: ...will automatically be set to the right value The LED will give one short flash every 5 seconds for indication of a successful calibration pHix Compact is now ready to be put into service or for anoth...

Страница 30: ...r liquid or electrode should be replaced and pHix Compact turned upside down for at least 30 seconds before a new buffer adjustment is made Depending on the zero point value of the electrode and the p...

Страница 31: ...e changed to two weeks and after that one month The intervals are equally reduced if the electrodes are very dirty and the measurements are significantly changed after buffer adjustment There are no g...

Страница 32: ...ated lifetime The lifetime is based on 77 F 25 C but if the temperature is doubled the lifetime is halved pH electrodes in purifying plants for ordinary household waste water lasts approximately one y...

Страница 33: ...NOT AVAILABLE IN THE US 163040 Redox buffer 6x20ml 180 mV Pt Kalomel 220mV PT Ag AgCL NOT AVAILABLE IN THE US Note For further accessories see pHix Compact Datasheet which can be downloaded from our...

Страница 34: ...1000 1000 mV Input impedance Measuring input 1012 ohm Reference input 106 ohm Output 0 14 pH 4 20 mA Furthermore for variants with temperature output 32 122 F 0 50 C 4 20mA Temperature comp 4 176 F 2...

Страница 35: ...pHix Compact EN 4 10 Version 2007 Dimensions 35 Dimensions Measurements are in mm inches US ONLY ALL OTHERS...

Страница 36: ...oltage max load 12 V DC I 3 85 mA Electrode error Exchange the electrode I 3 90 mA Calibration not possible Exchange the electrode I 3 95 mA pH lower than measuring range Readjust the measuring range...

Страница 37: ...to 1000 mV 4 20 mA ALL OTHERS pH and temperature transmitter item no 203110 Measuring range 0 14 pH 4 20 mA 0 point 4 6 pH pH transmitter item no 203112 Measuring range 0 14 pH 4 20 mA 0 point 4 6 pH...

Страница 38: ...e environment and we help people use water efficiently in their homes buildings factories and farms In more than 150 countries we have strong long standing relationships with customers who know us for...

Страница 39: ......

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