Detcon 1000 - Manual (Page 10)

Mdl 1000 H2S E-Chem / Inst. Air
Model 1000 H2S E-Chem w Instrument Air Rev. 1.1 Page 6 of 28
3. Installation
3.1 Mounting
Securely mount the Model 1000 analyzer panel or NEMA 4 enclosure (optional) in accordance with Figure 7.
Figure 7 Unit Dimensions
3.2 Gas Connections and Sampling System Notes
1. Install a length of tubing from the desired sample point to the sample input port (as shown in Figure 8.
Sample draw tubing should be 316 stainless steel of ¼" O.D.
NOTE: A constant pressure of 10±2psig should be provided to the analyzer for proper operation. In
applications where line pressure varies significantly, two-stage pressure regulation is recommended to
hold the constant pressure. Ideally, the pressure drop from the source to 10psig for analyzer should be
taken as close to the pipeline as possible. This speeds up response time to actual gas concentration
changes. An insertion probe membrane device is advisable to use for pipeline sources with high levels
of condensates, mist, and contamination.