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Summary of Contents for MJK PHiX
- Page 1 MANUAL EN 4.10 PHIX MANUAL PHiX pH- og Redoxtransmitter EN 4.10 PHIX Manual 1507 EN pHix Compact Manual 1507 SW 836502...
- Page 2 Direzione directiva(s) 89/336/EEC, 2004/108/EC, 1999/EC 28.08.2013 Jens Kruse MJK Automation ApS • Byageren 7 • DK-2850 Naerum • Tel: +45 45 56 06 56 • Fax: +45 45 56 06 46 • mjk@mjk.com • www.mjk.com EN pHix Compact Manual 1507...
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Page 3: Table Of Contents
pH and Redox Transmitter Contents Introduction ......5 Maintenance ......21 Safety instructions ..... 5 General ........21 Repair ........... 5 Intervals ........21 Explosion hazardous areas ... 5 Redox electrodes ......21 Construction ......6 Cleaning of elektrodes ..... 21 Product identification ....6 Electrode lifetime ..... - Page 4 EN pHix Compact Manual 1507...
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Page 5: Introduction
Repair You can always contact your representative or the MJK Service Hotline for advice and 1: Repair must only made by MJK or by a guidance. Also, take a look at www.mjk.com service representative approved by MJK. pHix is registered trademark of MJK. -
Page 6: Construction
Shown below is the label Compact also has HART communi- pHix ® ® for a delivery including a pHix Compact ® cation capabilities via the mA wires where transmitter with pH electrode with zero point both the primary measuring signal (pH or re-... -
Page 7: Mounting
Mounting Mounting Electrode types The electrode housing is marked with information about electrode type and measuring range for the actual electrode: pH electrode, item no. 160310, 1 - 14 pH, 10 - 80 °C, 0 = 4.6 pH. pH electrode, item no. 160311, 1 - 14 pH, 10 - 80 °C, 0 = 7.0 pH. Redox electrode, item no. -
Page 8: Mounting The Electrode
Compact shoud be used only with ® the electrode type included the delivery. Contact MJK if other electrode types should be used. Replacement of the electrode to another of same type does not require reconfiguration. The electrode must not become dry. - Page 9 Compact is completely dry – if ® necessary use a dry cloth. 4: Screw in the new electrode and tighten by hand. Do not use tools! 5: Finally, pHix Compact must be buffer ® adjusted prior to commissioning. See pg. 16. SW 836502...
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Page 10: Mechanical Mounting
Suspended in the cable reservoirs. Closed systems is e.g. pipe If the liquid is flowing relatively slow and systems or tanks/vessels. therefore giving no risk of pHix Compact ® hitting the side of the channel/reservoir, Compact may be suspended in the pHix ®... -
Page 11: Mounting In Closed Systems
The electrode is filled with a liquid which When measuring in e.g. open tanks, inlet should cover the membrane internally at all wells or gutters where strong currents can times. Therefore, pHix Compact should not ® occur, pHix Compact should be firmly fixed. -
Page 12: Mounting On A Pipe Stub
10 mm into the liquid. 3: Take care to have adequate room for pHix Compact is mounted correctly when the ® mounting and removal o f pHix Com- ® electrode tip is exposed approximately 10 mm out pact. from the inner lining of the pipe. -
Page 13: Electrical Mounting
Signal cable Note: pHix Compact comes with either 1 or 2 PHix Compact is delivered with ® galvanically separated signal outputs. cables made of PVC or PUR. Check the type of cable according to the specifications before con- ➀... -
Page 14: Cutting The Signal Cable
12 V DC at maximum current (20 mA.) In order not to compromise operational re- liability, the cables should be interconnected by means of a watertight connection box Uncutted cable end for pHix Compact ® (item no. 200590). with 1 respectively 2 signal outputs. -
Page 15: Connection Examples
Mounting Connection examples Local display MJK Power MJK Digital Indicator 531 Supply 515 Cable from pHix Compact ® 24 VDC supply Panel display MJK Digital Indicator 533 Cable from pHix Compact ® 4-20 mA signal with 24 V DC supply from 533... -
Page 16: Buffer Adjustment
Compact must be buf- ® fer adjusted with regular intervals. Buffer adjustment is a calibration, which is carried out in practice by dipping pHix ® Compact in solutions (buffers) with known pH values. The calibration is made by using these known pH values as a reference point. -
Page 17: Cleaning
When the value is found, pHix ® Compact will automatically set the 0-point or span to the correct value, and the LED will indicate this with 2 short flashes every 5 seconds. -
Page 18: Example Of Buffer Adjustment In Ph 4 And 7
When the buffer adjustment has finished sucessfully, the LED will start to give 2 short flashes every 5. sec. The span angle is now set. Buffer adjustment in Buffer adjustment in pH 7 buffer. pH 10 buffer. EN pHix Compact Manual 1507... -
Page 19: Buffer Adjustment Using The Tilt Switch
30 seconds - this is indicated by the LED with 3 short flashes every 5 seconds. If pHix Compact is dipped into a buffer ® solution with a value of 4, 7 or 10 pH, pHix ® Compact automatically search for a buffer SW 836502... - Page 20 Buffer Adjustment EN pHix Compact Manual 1507...
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Page 21: Maintenance
Redox electrodes Redox electrodes require cleaning like pH electrodes, but not buffer adjusting. However, MJK do deliver redox buffers for control of electrode and transmitter. If the transmitter does not show the correct value when put into the buffer solution, the electrode must be exchanged. -
Page 22: Spares
Black rubber gasket for electrode (EN 1.4404 / ASTM 316L) 521409 Union ring w. Viton gasket Enclosure IP 68, withstands for mounting of pHix on pipe end submersion to 10 mWG 521441 Viton gasket for union ring Input 0-14 pH/-1000 ... +1000 mV Input impedance Measuring input: >... -
Page 23: Appendices
Appendices Appendices Error codes Symptom / mA signal: Fault: Remedy: Constant current signal Electrical connection Check connection and make the necessary or I = 0 mA is not made correctly. corrections. Unsteady current signal Undervoltage. Check the voltage at transmitter. Min. voltage @ max. load > 12 V DC! I = 3.80 mA Undervoltage. -
Page 24: Accessories For Mechanical Mounting
Accessories for mechanical mounting Union for mounting on pipe end, item no. 521409 Fitting for submersion, item no. 155205 ∅ 50 Extension for universal bracket, item no. 200215 1000 Universal bracket, 1¼" thread item no. 200205 (ISO 228-1) EN pHix Compact Manual 1507... -
Page 25: Accessories For Electrical Mounting
Appendices Accessories for electrical mounting Loop supplied digital indicator type 531, item no. 200125. (See also data sheet 6.3.) 230 V AC digital indicator type 533 with built-in 24 V DC power supply and 2 relay outputs for alarm, control etc., item no. 200130. - Page 26 Liability MJK Automation A/S is liable to the common rules of Danish law on product liability. However, the liability is reduced to coverage of our public liability insurance of products. To the extent where nothing else follows in lines of invariable rules of law, we are not liable for loss of profits and working deficits or other indirect losses.
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