Ametek 5100 HD, Руководство пользователя

Страница: 35 / 134

Installation & Start-Up
|
3-7
Analyzer Installation
Consult plant safety personnel for appropriate exhaust venting
guidelines for specific sample gas type.
User-Supplied Items
Interconnect Wiring
The user must supply all wiring for serial communication, analog output
(max cable resistance <900 Ohms), and alarm relays. Recommended wire is
22 gauge, twisted/shielded pair.
The terminal blocks in the customer connection box are sized for 02 - 4.0
mm2 (AWG 24 - 12) wire, 1 conductor per block, torque between 0.6 nm and
0.8 nm (85.1 to 113.5 in-oz).
External Sample Tubing
Standard recommended sample gas input tubing is 1/4” stainless steel tubing
(6mm for the OC6E metric connection fittings version), stainless steel.
Sample input tubing length should be as short as possible.
Secondary Process Seals
Secondary process seals must be used on all conduit entry points at the
customer connection box to prevent gas/liquids from venting to nonclassified
locations.
Sample Pressure Requirements
AMETEK recommends pressure settings between -4.5 and 10 PSIG
.
Minimum input pressure: -4.5 PSIG (-31.3 kPa) (10.2 PSIA)
Maximum pressure: 10 PSIG (68.7 kPa) (24.7 PSIA)
A sample cell pressure sensor located in the electronics box is used to monitor
inlet pressure (shown below).