FurnacePros LA-309, Руководство пользователя

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Product Specification
Page 12 of 18 1303090MS01
LA-309 Controlled Atmosphere Infrared Furnace April 15, 2009
14.8 Additional Customer acceptance tests that are beyond the scope of the original mutually agreed
upon acceptance criteria may be performed at Manufacturer’s facility by Customer
representatives, or by Manufacturer’ personnel, on a time and material basis, to be agreed upon
at the time of order.
15.0 DEFINITIONS
The section describes terms used in this document.
Table 15-1. Definitions
KEY DESCRIPTION
CDA Clean, dry air. Compressed air supply that has been filtered of particulate and moisture.
FG Forming gas, a mixture of H
2
and N
2
gasses usually with 4% H2 or less in the mixture.
H
2
Hydrogen gas; a concentration > 8% in air is considered explosive. For concentrations higher than 4%, FurnacePros
requires inclusion of the Hydrogen Operation (HO) option to safely use hydrogen as a process gas in a furnace.
IO Input/Output signals as an aggregate. IO is comprised of signals from one or more of these sources: AI (analog
input), AO (analog output), DI (digital input), or DO (digital output).
N
2
Nitrogen gas. Inert. Usually used to displace oxygen from the furnace during processing. The Oxygen Analyzer (OA)
option can be used with our automatic sampling system to continually monitor O
2
(oxygen) levels present in any of 3
zones in a furnace, displaying results on the OI and alerting and alarming when detecting levels above pre-set limits.
PID Proportional, integral derivative control loop that calculates an output to correct the error between a measured
process temperature and a desired set point temperature.