GETTING STARTED

 

M102E/M501 TRS

 

 

(Addendum to M101E Manual - P/N 04740 Rev A)

Table 3-4: NIST-SRM's Available for Traceability of H2S & SO2 Calibration Gases

 

 

 

 

 

 

NIST-SRM4

TYPE

NOMINAL

 

 

 

 

CONCENTRATION

 

 

2730

Hydrogen sulfide in N2

5000 ppb

 

 

2731

Hydrogen sulfide in N2

20 ppm

 

ZERO AIR

A gas that is similar in chemical composition to the earth’s atmosphere but without the gas(es) being measured by the analyzer, in this case total reduced sulfur (TRS). While

TRS typically includes Hydrogen sulfide (H2S), Dimethyl sulfide (CH3)2 , Dimethyl disulfide (CH3)2S2 and Methyl mercaptan (MeSH), CH4S many other gases fall into this category as well. In addition other interferent gases may be present in ambient air as well.

To ensure that high quality zero air is available a zero air generator such as the Teledyne Instruments Model 701 should be used.

If your analyzer is equipped with an IZS option, it is capable of creating zero air that is adequate for performing informal calibration checks, but a zero air generator such as the Teledyne Instruments Model 701 is still recommended for performing formal calibration operations.

11.Once the appropriate pneumatic connections have been made, check all pneumatic fittings for leaks using a procedure similar to that defined in Section 11.5.1 of the M101E Manual - P/N 04740 Rev A.

3.6.2.1. Connections with Internal Valve Options Installed

If your analyzer is equiped with either the zero/span valve option (Option 50) or the internal zero/span option (Option 51), the pneumatic connections should be made as shown in Figures 3-9; 3-10 & 3-11:

14

05514 Rev A1

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Teledyne manual Connections with Internal Valve Options Installed, M102E/M501 TRS, Getting Started, Zero Air, Rev A1