Keterangan
Applications
Designed for the continuous monitoring of O2, CO, CO2, and/ or H2 gases from blast furnaces or other continuous industrial processes where an uninterrupted stream of gas concentration data is critical. Calculated values of BTU, N2 and efficiency are also available.
Description
The Nova 8000 series has been designed for the continuous monitoring
of pre-cleaned gases from a blast furnace or other high intensity, continuous industrial processes. The analyzer measures up to four gases
simultaneously - O2, CO, CO2, and H2, the ranges of which are shown
below. From these readings, other operating parameters such as nitrogen
content, BTU and efficiency can be calculated and displayed.
The analyzer consists of three main components: a heated filter cabinet
which is directly mounted on the side of the blast furnace gas main, a
sample conditioning system which is integral to the main analyzer
cabinet, and the gas analysis sensors which are mounted in a separate
but integral rack mount drawer, which eases service and maintenance.
Models
⢠8002 - CO and CO2
⢠8003 - H2, CO, and CO2 with H2 compensation
⢠8004 - H2, O2, CO, and CO2 with H2 compensation
⢠8006 - 8004 gases + N2, BTU and efficiency calculation
⢠Other gases can be included as part of this platform, including CH4, SO2, NO, and NO2 in % or PPM ranges.
Options
⢠Cabinet purge system for use in dusty or hazardous locations
⢠Cold weather package for operation to -5° F ( -20° C)
⢠Cabinet coolers can be fitted to most models
Sample Conditioning
⢠High capacity sample pump ( where sample motivation is required) and high flow by-pass improves overall
system response time
⢠Compression-style moisture removal eliminates use of failure-prone pelletier elements
⢠Redundant heated filters allow user to remotely switch from a blocked filter to an unblocked filter, minimizing
down time due to filter blockage.
⢠Automatic blow back of heated filter and probe, can be sequenced with autocalibration, or based on sample
vacuum limit
⢠Digital control maintains constant sample flow even as filters start to plug, reducing operator required
Gas Analyzer
⢠High accuracy gas detectors with full hydrogen compensation
⢠Detection of CO & CO2 by reliable field cleanable non-dispersive infra red detector
⢠Detection of O2 by long-life electrochemical sensor
⢠Detection of H2 by thermal conductivity cell
⢠Sensors mounted in temperature controlled 19" ( 48cm) rack mount drawer to reduce drift
⢠Rack mounted sensor drawer, which is integral to the main cabinet, permits quick swap with replacement rack
Smart User Interface
⢠Large graphical touch screen display
⢠Auto calibration with user defined calibration frequency and purge duration
⢠One-step ' CAL NOW' button allows full calibration without opening cabinet
⢠Ethernet and 4-20mA outputs suitable for data collection by SCADA systems
⢠Diagnostic alarms quickly notify operator of special faults
⢠Diagnostic screen aids operator testing of gas analyzer
⢠Troubleshooting guide aids operator in testing sample conditioning system and identifying parts to be changed
⢠Maintenance alerts notify operators that filters should be checked or changed. Change frequency can be set by user
⢠Password-protected user-adjustable parameters allow the operator to ' tweak' the operation of the analyzer without having to change the code
SPECIFICATIONS
Method of Detection : O2 - customer replaceable electrochemical ' fuel cell' sensor
CO/ CO2 - dual channel, high accuracy NDIR infra-red detector
H2 - thermal conductivity sensor
N2 - continuously calculated by subtraction of other gases from 100%
BTU - continuously calculated from the two flammable gases in the mixture
Ranges Available : Oxygen - 0-5.0%
Hydrogen - 0-10.0% and 0-20.0%
Carbon Monoxide ( CO) - 0-50.0%
Carbon Dioxide ( CO2) - 0-50.0%
Resolution : 0.1% for all gases measured
Accuracy and Repeatability : + / - 1% of full scale
Drift : Less than 2% of full scale per month
Response Time ( T-90) : T90 < 30 seconds not including transmission time to process
Ambient Temperature Range : 32-122 º F ( 0-50° C) , lower temperatures with cold weather package ( to -20° C; -5° F)
Linearity : + / - 1% of full scale
Size and Weight : Main Analyzer Cabinet Dimensions: 30" H X 24" W X 22" D ( 76 x 61 x 56 cm)
Power : 115 VAC, 60 HZ ( 220 VAC, 60HZ available)
Output Options : Ethernet and 4-20 mA output for all gases and alarm conditions
Alarms : Low Flow, Low Span1, Low Span 2, Low Zero and Hi cond. Temp. Also has calibration Fail Alarm
Prioritas Indotrade