| WÖSTHOFF MIKROGAS® and ULTRAGAS® Analyzers |
The conductimetric measurement principle utilized
by H. Wösthoff, GmbH, introduces a previously metered sample gas into a suitable
liquid reagent of measured electrical conductivity. The volumetrically
proportioned streams of sample gas and liquid reagent combine, changing the
conductivity of the reagent solution. The resulting difference in conductivity
of the reacted reagent solution is proportional to the concentration of the
sample gas being measured.
| ULTRAGAS® Series |
Methodology and Application
Utilizing
the principle of conductivity measurement, ULTRAGAS® instruments
provide continuous reading or batch analysis for laboratory and pilot project
applications; closed chamber research; environmental; specialty gas production
analysis; petroleum, chemical, pharmaceutical and other industrial process
laboratories; and ambient air applications involving one or more of the
following gases: CO, CO2, CH4, NH3, H2S, SO2, HCl,
COCl2, CWK, COS, CS2, HCN; other hydrocarbons. This direct wet-gas
measurement principle does not require a dry-gas sample as with other analyzer
measurement techniques.
Calibration
The amount and cost of
compressed calibration gas standards is significantly reduced, since the
required sample gas flow rate is so small
| Single or Multiple Measuring Ranges: |
As low as 0-10 ppm; User Determined As high as 0-5000 ppm; User Determined | ||
| Detectable limits: | As low as 0.1 ppm | ||
| Accuracy: | Better than 1% full scale | ||
| Zero Drift: | Less than 0.3% of full scale per 24 hours | ||
| 90% Time: | 80/150 seconds | ||
| Sampling Flow Rates: | Continuous: | 58 ml/min | |
| Reagent | 0.8-1.6 ml/min | ||
| Volume Required: | Batch: | 150 ml minimum | |
| Temperature: | 2-35 ºC | ||
| Atmospheric | |||
| Signal/Display: | 0/4-20 mA / recorded as ppm or % by volume; continuous reading analog or digital display; chart recorder display or other data (PC) interface; pre-set alarm | ||
| User Determined | |||
| MIKROGAS® Series |
Applications and
Methodology
MIKROGAS® instruments employ the conductimetric
measuring principle and continuously measure concentrations of SO2, HCl, H2S, NH3, Cl2, COCl2, COS CS2, HCN and
other gases in stack and incineration emissions (CEMs), before or after
cleaning; ambient air; standing tanks; waste treatment plants; petroleum,
chemical and other industrial process streams.
This direct wet-gas measurement principle does not require the use of a dry-gas sample; nor is a dilution sampling probe required for CEM applications.
Interferences and Sample Loss
Reactive
components or interfering gases contained in a sample gas stream are eliminated
by filtration in the sampling probe; condensation; absorption; or chemical
washing prior to entering the measuring system. Some measurement applications
require use of heated sampling probes and lines to avoid sample
loss.
Instrument
Configuration
MIKROGAS® analyzers are available as stationary
(wall mount, 19" rack, pedestal) or easily-portable units.
Calibration
MIKROGAS®
analyzers may be calibrated directly at the instrument or at the CEM sampling
probe. The amount and cost of compressed calibration gas standards is
significantly reduced, since the required sample gas flow rate is so
small.
| Single or Multiple Measuring Ranges: |
As high as may be required; User Determined As low as 0-1.0 ppm; User Determined | ||
| Detectable limits: | Smaller than 2-5% full scale; as low as 0.04 to 0.10 ppm | ||
| Accuracy: | Better than 2-3% full scale | ||
| 90% Time: | 80-160 sec | ||
| Sample Gas Flow: | As low as 4.0-10.0 l/hr | ||
| Temperature: | 2-45 ºC | ||
| Signal/Display: | 0/4-20 mA; continuous reading analog or digital display; chart recorder display or other data (PC) interface; pre-set alarm | ||
| "O" Point Deviation: | ± 0.73% over 4 week maintenance interval | ||
| Weight: | 30 lbs. (Portable Unit) | ||
| 4-6 weeks | |||
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