PROCESS
ANALYZERS,
SERVICE &
CONSULTING

 


 

MODEL AGA 961 CE

 ACID GAS ANALYZER

FOR CLAUS SULPHUR RECOVERY UNITS

TO ANALYZE THE H2S -CONCENTRATION

UV-spectrophotometer

Ideal for:
       Inlet H2S measurement
       Feed forward control to bias the main air ratio controller

 


General:
       Low installation cost
       Continuous, accurate, reliable
       No expansive shelter required
       User and service friendly modular design
 

Sample System:
       Reliable and trouble free
       Sample Lines connect the analyzer with sample and vent point
       Hermetically separated from electronics/ optics (fibre coupled)

 Spectrophotometer:
       Full spectrum analyses with high wavelength resolution
       Excellent cross-interference compensation for high accuracy measurements under real process conditions
       High linearity; Wide dynamic range
       Extreme over range capability
       No moving parts, no optical filters
       Easy handling due to self explaining display
       Extensive self diagnostic built in

Technical Data

Electrical Classification

EEx p ib (ia) m e IIB T3   Cert.No.: T脺V 00 ATEX 1616                or

General Purpose according IEC/VDE
Packaging according to North American Standards

Power Supply

1/N/PE ~ 50/60 Hz  230 V   or  115 V

Power Consumption

1200 Watt

Protection

IP 65 according  IEC 529  DIN 40 050

Instrument air or

another inert gas

Dew point   -40 掳C (-40 掳F)

Pressure: 5.5 ...     7 barg             

                550 ... 700 kPa                         

Flow:   3,4 m鲁/h normal

25 m鲁/h at short intervals

To comply with ANSI/ISA                S7 鈥 3 鈥 1975 R/1981

Steam Supply

3.5 ...  4.5 barg for sample line heat trace

SIGNAL OUTPUTS

 

Analog

Two outputs 4 ... 20 mA, updated once per second,
isolated to 250 Vrms , self- or loop powered, load < 1000
W,

Output signal linear to concentration:

1. Hydrogen Sulphide H2S  (track & hold)     0 鈥 5   to   0 ... 100 vol %
2. Hydrogen Sulphide H2S   (live)    0 鈥 5   to  0 ... 100 vol %                   

:

Digital

Potential free SPDT relay contacts. Isolated to 250 Vrms
The operational status outputs:         STATUS (Fault/Normal)
                                                           MODE (Calibrate/Run)                                                                                                                
                                                          CONTROL (Manual/Auto)

Display

Flat Paned Industrial PC c/w 12鈥 TFT screen

Material in sample contact

Stainless steel, high purity aluminum or PTFE

Source

Highly stable deuterium broad band lamp

Detector

Spectrometer with a 2048 element CCD array detector

Accuracy

卤 2 % H2S      F.S.                 

Speed of response T90

Typical 3 seconds w/o sample line delay

Warm up time

< 90 minutes

Repeatability

卤 2.0 % F.S.

Sensitivity

H2S 鈥 reading  卤 2.0 % F. S.

Zero drift 

0.25 % F.S. in 24 hours
Based on Auto Zero every four hours.

Calibration

H2S output is factory calibrated.
High purity N2 for Zero required

Sample flow

80 Liter/h

Sample transport

Differential pressure between sample and vent point

Weight

140 kg

This Analyzer is based on BRIMSTONE Technology.

 

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