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Obsolete Parts and Analyzers

These are parts and analyzers that are no longer available or have become obsolete.  RIGAS is often able to still service these items though.

655856 Rosemount IR LED source assembly now obsolete

RIGAS found out that this part is NLA (no longer available).  It may take a little doing but I think RIGAS can get more of these.  Call us at 877-616-0600 to find out if we we’re successful.

Additional info: this item usually NEVER fails. It’s an infrared (IR) emitting LED (light emitting diode) that is glued in to a holder specifically designed for the NGA-2000 PMD analyzer (paramagnetic oxygen analyzer).

Beckman/Rosemount 7C case heater replacement

You might be looking for the old P/N 778521 … this is no longer available from the OEM.   RIGAS manufactures a replacement case heater asembly (p/n: 65B0001).   Our unit uses a Dywer Instruments digital temperature controller which makes it more accurate and more stable than the original analog controller board.   Our assembly includes: heater, digital temperature controller, fan, RTD, bracket, power cable (harness), installation instructions, thermal fuse, and fan guards.  No new mounting holes are required;  our unit has the same footprint as the 778521 assembly.    One wire (for heater “on” indication) has to be relocated.

We build these on demand; it can take a week or two to manufacture.

The price from the OEM back in 2003 was approximately $1100.  Our unit sells for $1500.

Call us at 877-616-0600  and ask for p/n: 65B0001!!

Model 320 (or 320A) Stream Switcher by Beckman (or Rosemount) is NLA

This is an old mechanical, rotary drum & rocker switch, stream switcher. It was designed as a 5 streams or 10 streams unit.

RIGAS can fabricate a replacement. We utilize more modern parts (i.e., a PLC replaces the mechanical timers; status lights are replaced by LEDs). Other options are available too, just ask.

Here are some part numbers that you might find in this unit:

  • 138515 operator’s manual,
  • 138520 operator’s manual,
  • 123770 front panel,
  • 117956 SLIDE RAIL,
  • 117957 CHASSIS MOUNTING PLATE,
  • 081810 manual.

OXA-1000 by Rosemount is obsolete but still serviceable

This analyzer has fallen off of the proverbial radar! It its day, this was a very good analyzer. It is still in use across the country (maybe even the world). RIGAS can service this unit. The main failure problem is its ZrO2 (zirconium oxide) sensing cell. Don’t throw this unit away … please call us for a ballpark quote and/or technical support.

This analyzer was commonly referred to as “Ox in a box” (i.e., zirconium oxide based oxygen in a rack mountable chassis).

The unit was fabricated in Shannon, Ireland (a Rosemount factory back in the 70s, 80s, & early 90s).

Rosemount OPM2000, OPM2000A, OPM2000R, & OPM2001 are obsolete / NLA / no longer available / discontinued

These analyzer are discontinued by the OEM but they are still VERY viable! We have parts and service available for these continuous opacity monitoring system analyzers (a.k.a., COMS). Call us today!

If you are contemplating a wholesale replacement (or upgrade) of your Rosemeount opacity analyzer, remember to weigh the pros and cons.  Here is a list of things to think about:

  OPM series is out of production Con  
  OPM series is out of production but still supported by RIGAS   Pro
       
  OPM series is virtually not supported with parts by OEM (Rosemount) Con  
  OPM series is supported with parts by a 3rd party (verified veteran owned small business) - RIGAS   Pro
       
  OEM liquid crystal windows are of poor quality or non-existant or overly priced Con  
  RIGAS manufactures good quality liquid crystal windows at a fair price   Pro
       
  OPM series is not supported technically any longer by OEM (Rosemount) (due to retirement of key individuals) Con  
  OPM series is supported technically by RIGAS.  Mel Underwood, Pat Robeck, & Larry Runyan are very knowledgeable.   Pro
       
  Calling OEM regarding OPM series is not easy; they will only converse with you during normal business hours Con  
  Calling RIGAS regarding OPM series is easy; they will converse with you 24/7/365   Pro
       
  Calling OEM regarding OPM series for an emergency parts shipment is pointless; they don't have parts on hand Con  
  Calling RIGAS regarding OPM series for an emergency parts shipment is easy; they will drive package to Cleveland Airport if necessary   Pro
       
  Operating costs (quarterly audits, annual audits, miscellaneous repairs) on old OPM units is about $15K per year Neutral  
  Operating costs (quarterly audits, annual audits, miscellaneous repairs) on any new opacity analyzer is about $13K per year   Neutral
       
  Analyzer replacment cost is about $25K plus $10K (stack modification, rewiring, etc) plus recertification $15K - Total = $50K Con  
  Analyzer nonreplacment cost is $0K - Total = $0K   Pro
       
  Analyzer replacment cost comes out of a capital expense budget not the operating budget Neutral  
  Analyzer replacment cost comes out of a capital expense budget not the operating budget - but it is still a drain on company finances Con  
       
  OPM series has been installed for many years and seems to be faulting regularly due to interconnecting wiring or aged components Con  
  If OPM series has been installed for many years, blowers, hoses, interconnecting wiring will need to be replaced (but necessary for a new installation too)   Neutral
       
  New COMS will meet current EPA regulations (but you'll still have to meet the QA criteria in 40 CFR part 60, App F, Procedure 3) Neutral  
  Old OPM COMS is grandfathered in with old EPA regulations - yes (but still needs to meet new promulgation of 40 CFR part 60, App F, Procedure 3)   Neutral
       
  New COMS will require more data points on DCS to meet current EPA regulations (per 40 CFR part 60, App F, Procedure 3) Neutral  
  Old OPM COMS is grandfathered in with old EPA regulations - yes but still needs more data points on DCS to meet current EPA regulations (per 40 CFR part 60, App F, Procedure 3)   Neutral
       
 

If replacing the COMS with a new system then you'd then be relying on an OEM that has parts & support for many years ahead

  Pro
 

If not replacing the COMS with a new system then you'd then be relying on a 3rd party vendor (RIGAS) for parts & support for many years ahead. (We, RIGAS, think that this is a good gamble; we plan to stay in the COMS business for m,any years to come.)

  Pro

 

3D39208G01, 3D39365G01, 3D39580G01, 3D39664G01 OPM2000 series (includes: OPM-2000A, OPM-2000R, OPM-2001) Stack Termination Boards are OBSOLETE per the OEM

The OPM2000 series analyzers have been obsoleted for many years. That does NOT mean that they are no longer viable. RIGAS continues to invest in replacement parts to keep these units running for many years to come. RIGAS has designed a universal replacement board; here are the cross-reference numbers:

3D39208G01 – replaced by 40E0024R3
- for the OPM2000 original analyzers

3D39365G01 – replaced by 40E0024R2
- for the OPM2000A rev A (Rev A does not utilize a computer type D9 connector on its communications pigtail coming out of the transceiver)

3D39580G01 - replaced by 40E0024R1
- for the OPM2000A rev B (Rev B does utilize a computer type D9 connector on its communications pigtail coming out of the transceiver)

3D39664G01 - replaced by 40E0024R0
- for the OPM2000R & OPM2001

Note the separate connection for the blower wires AND the heavy duty toggle switch to allow your technician to service the blower without having to turn off the entire opacity analyzer.

Rosemount 755 series bicell (bi-cell) 622356 is no longer available at OEM

This is the bi-cell (photocell) in the 755 series paramagnetic oxygen gas analyzers. Its function is to determine the position of the test body (dumb bell) based upon the relative intensity of the light beam bouncing off of a mirror attached to the test body.

RIGAS has a replacement for this NLA (no longer available) part. Call us at 877-616-0600.

Your 755, 755G, 755A, 755R, and 755EX are NOT obsolete. As long as you don’t destroy your detector (dumb-bell assembly) we can maintain this unit for many. many years to come.

Original manufacturer: Beckman, Rosemount, Beckman Industrial

Rosemount 616418 (lamp only p/n: 616239) are no longer available at OEM

The 616239 is the source lamp (light bulb) for the 755 series paramagnetic oxygen gas analyzers. It was sold in kit form (the lamp and a set of instructions) as 616418.

RIGAS has a replacement for this NLA (no longer available) part. Call us!

Your 755, 755G, 755A, 755R, and 755EX are NOT obsolete. As long as you don’t destroy your detector (dumb-bell assembly) we can maintain this unit for many, many years to come.

755, 755G, 755A, 755R, and 755EX are NOT obsolete!

It is true that the OEM has discontinued sales and support for these analyzers … however, they are still VERY viable!! As long as there is a vendor that can supply photocells, source lamps, and miscellaneous other parts, you should be able to count on your Rosemount/Beckman paramagnetic oxygen analyzer for decades to come.  Yes, decades!  As long as you (or your technicians) don’t over-pressurize or overflow the actual detector (dumb-bell assembly) then you should expect many, many years of service.

Typical failures that we see in our depot include:

·    blown thermal fuses,

·    bad power supply circuits,

·    wrong heater setpoints,

·    bad fans,

·    bad analog (or digital) meters,

·    bad 4-20 mADC boards, and

·    sometimes blown detectors.

 

With the exception of the “blown detector” issue, RIGAS can repair everything else!!

So what if you do blow up your detector?  Well, for about $6500, RIGAS can install a new, better, more accurate, and more reliable paramagnetic detector.  It’s actually an approved factory upgrade; the old Anaheim detector (formerly produced at the Rosemount facility in Anaheim, CA) is removed and a ‘buy out’ detector is installed in its place.  This newer detector is much more forgiving of excess flow or excess pressure events; plus it’s more accurate and less noisy.  You’ll need to wrestle with the cost though.  We believe that it’s right at a cutoff point where a brand new analyzer should be considered.  So let’s weigh the pros and cons:

Pros:
[1] it will look and feel like the old analyzer so re-training is minimal,

[2] it’s still 100% Beckman/Rosemount and supported by RIGAS,

[3] there’s no labor time required to redo the panel cutout, plumbing, wiring, MOCs, etc, etc. (that just might be the savings that justifies keeping the old unit!!)

Cons:
[a] it is an old analyzer with aging capacitors that are drying out … it will require some servicing before a brand new analyzer might require servicing … capacitors are easy to replace,

[b] cost of this new detector is high but it might be well worth it if you only end up spending $7000 to save the purchase price of a new analyzer at $20,000.

Call us. We can help!

 

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