May « 2009 « RIGAS Industrial Gas Analyzers

Archive for May, 2009

High Opacity Readings on Rosemount OPM2000, OPM2000A, OPM2000R, OPM2001

Monday, May 25th, 2009

Components affected: LCW, liquid crystal window, lamp, barrier window, alignment, bulb, & temperature.

High opacity can come from any of the following:
[1] actual stack opacity conditions
[2] misalignment
[3] failing bulb/lamp or lamp power supply
[4] failing LCWs or LCW power supply
[5] dust on barrier window and/or corner cube
[6] steam that has changed phase to vapor

Call us to help you diagnose this.

Please provide the following:
- model number
- age of LCWs
- age of bulb/lamp
- reference voltages (8)
- current ‘run’ voltages (4)
- temperature

Posted in Opacity Analyzers - Problems & Solutions | Comments Off

Communications Failure on Rosemount OPM2000 (original)

Monday, May 25th, 2009

Communication failures typically fall in to 2 categories:
[1] bad interconnecting wiring
[2] board faults

If you’re not using Belden 8162 or 8163, you run the risk of causing a communications problem that gets worse with time.

The CRU talks RS232 which then routes to a converter (RS232 to RS422) before the signal leaves the CRU. The transceiver receives the RS422 directly without a converter.

Here is the order of typical failures:
[1] RS232/RS422 converter in the CRU
[2] IO Plexor
[3] CPU board in the CRU

Call for more details.

Posted in Opacity Analyzers - Problems & Solutions | Comments Off

Communications Failure on Rosemount OPM2000A, OPM2000R, OPM2001

Monday, May 25th, 2009

Communication failures typically fall in to 2 categories:
[1] bad interconnecting wiring
[2] board faults

If you’re not using Belden 8162 or 8163, you run the risk of causing a communications problem that gets worse with time.

The LON originates on the Stack LON board AND the IG-1 serial gateway. If either board is faulted, unpowered, corrupted, blown power supply, or whatever then you’ll get COMM FAULTS.

Call for more details.

Posted in Opacity Analyzers - Problems & Solutions | Comments Off

Gas Notes

Friday, May 22nd, 2009

RIGAS supports the entire Rosemount gas product line. In fact, the owner of RIGAS has been working with the Rosemount analyzers since 1984!

Remember: Boards are repairable …
… optics are repairable!!

Don’t throw those very expensive Rosemount boards away! 99.9% of the time they are repairable!!

We stock critical parts! We stock ‘obsolete’ parts! We fabricate parts (sometimes out of thin air, but we get the job done!!)!!

Call us: 877-616-0600
330-345-5264
330-345-5944 (fax)

Posted in General - Gas Analyzers | Comments Off

Opacity

Friday, May 22nd, 2009

We have some great information about your OPM. If you’re a contract customer, this information is free, just call us. If you’re an internet surfer looking for free OPM information, please note that general information can be found in the product manual. We charge for superior technical expertise to help offset our website expense, telephone expense, labor overhead, insurance, and the list goes on. Thanks for your understanding.