pHiKECTM pHionics' keyless elastomeric connector system
                     (U.S. Patent Nos: 6331117, 6612848, 6824394. and other patents pending)

electrode replacement -- how do I replace the electrode?
cable replacement -- how do I replace the cable?

The patented pHiKECTM connector system (see pictures below) was created for the customer with ease of service, low cost, foolproof assembly, reliability (redundant gold contacts), and, small size, foremost on our minds.  Concurrently, it was designed by pHionics, and, for our licensing OEM's, with ease of manufacturing, ease of testing, and low manufacturing costs as a required design goal.  Both sets of goals were obtained by our engineering staff beyond our expectations -- and they equate to value for you -- high quality and reliability -- at a low cost.  (U.S. Patent Nos: 6331117, 6612848, 6824294, and other patents pending)

The pHiKECTM system serves various applications, and specifically, the sensor and/or transmitter market quite well.  More importantly, the patented pHiKECTM keyless elastomeric connector system serves our customers -- you -- ideally for the purpose intended -- reliability and ease of service.

 Please view the following pictures for a demonstration of the system and the ease of cable and electrode installation or replacement. 

 
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Photo 1 demonstrates the basic components of the STs sensor/transmitter using the patented pHiKECTM connector system.  Shown are the electrode in its protective guard, the housing that contains the transmitter module(s), and the cable assembly.  Photo 2 shows the isolated 4-20 ma transmitter module.  Several of these and/or a battery module can be stacked in series to yield preamplification of the sensor and transmission of the desired output (4-20 ma, 0-2.00 VDC, etc.).  Note the gold-plated annular rings on the ends of the module.  A gold plated elastomeric connector is positioned between each of these modules, resulting in a rotatable, proper connection that does not require keying.  The modules are then snapped inside the housing, where the preamp end is recessed deeply to receive the elastomeric connector of the electrode as shown in photo 3.  The other end is recessed more shallowly to receive the cable connector as shown next to the electrode.  This results in a foolproof assembly that cannot accidentally have the power attached to the wrong end, or, the electrode placed where the cable is supposed to be.
 
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The electrode (sensor) or cable can be attached in any desired order, but we will demonstrate the installation of the electrode and guard into the transmitter housing first.  Please bear in mind that removal of the cable or electrode is accomplished by simply reversing the order.  Photo 4 shows the electrode and guard.  Take the electrode and insert it through the spring of the guard as demonstrated in photos 5 and 6.  Apply a slight twisting motion until the light pressure created by the two o-rings has been felt.  Continue to insert the electrode until it abuts the spring ( 7 ).
 
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The guard and electrode can now be inserted into the transmitter housing ( 8 ).  Push the guard and electrode into the end of the tube that is recessed more deeply ( 9 ) until the guard abuts the detent in the side of the tube ( 10 ).
 
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Apply a slight inward force while turning the guard in a clockwise fashion approximately two turns, which will engage the o-rings ( 11 ) and will draw the guard up against the housing( 12 ).  No undue force is necessary.  Installation of the electrode and guard is complete. 
 
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Installation of the cable is performed in a similar fashion as the above.  Insert the cable 
( 13 ) into the shallow end of the transmitter, until it abuts the detent in the tube.  Apply light inward pressure while turning the transmitter housing in a clock-wise manner until the o-rings are engaged ( 14 ) and continue to rotate for approximately two full turns until the cable is abutting the transmitter housing ( 15 and 16 ).  Again, no undue force is necessary.  This can be performed with or without the power being applied.
 
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photo 17 shows a complete unit, ready for use.  All of the operations described above are far easier to do than they are to describe, but they can be summed up as follows -- twist the guard two turns, the electrode is installed, twist the transmitter housing two turns -- the cable is installed -- the job is done!

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