Teledyne 4060 manual Less than 0.5 PPM

Series 4060 Installation

not representative of the current contents of the line, or which might keep contaminants from being purged out of the system.

CAUTION: THE GASES USED MUST BE OF THE HIGHEST QUALITY, ULTRA ZERO GRADES, AS SHOWN BELOW. FAILURE TO DO SO WILL RESULT IN CONTAMINATION AND FAILURE TO DETECT LOW PPB BENZENE:

AIR:	USE WATER PUMPED AIR WITH THC LESS THAN
	0.1 PPM. DO NOT USE OIL PUMPED AIR UNDER
	ANY CIRCUMSTANCES.
FUEL:	HYDROGEN GAS, 100%, ZERO QUALITY WITH THC
	LESS THAN 0.5 PPM.

CARRIER GAS: NITROGEN GAS, ULTRA ZERO GRADE WITH THC LESS THAN 0.05 PPM.

Normally, four supporting gases of different composition (see Section 4.1: Equipment) will be required to operate the analyzer. The recommended composition is specified Appendix B: Addendum and Testing Results. The gases should be supplied from cylinders that are equipped with the type of regulator specified in the aforementioned sections.

CAUTION: UNDER NO CIRCUMSTANCES SHOULD YOU EMPLOY A REGULATOR THAT IS NOT EQUIPPED WITH A METALLIC DIAPHRAGM ANYWHERE IN THE SYSTEM.

The regulators should be inspected prior to installation to be sure that they are oil-free. Failure to comply with these directives will result in a constant drift in analyzer output, as organic compounds will outgas into the plumbing system at a rate that is related to the ambient temperature. Use 316 stainless steel, dual-stage stainless steel diaphragm regulators only in fuel, sample, and blanket air lines; shutoff valves should be used downstream from each regulator.

Place the supply cylinders as close to the analyzer as possible, and connect to the analyzer with new tubing. Be sure that all plumbing connections are free of leaks.

Note: Use only stainless steel tubing throughout the system. Consult the assembly, piping, outline drawings, and any

Teledyne Analytical Instruments 39