XACT® 920 CONTINUOUS WATER ANALYZER
Cooper Environmental Service¥100
Out of stock
Product Description
The Xact® 920 system is the latest application of Cooper Environmental’s automated XRF module that allows for analysis of continuously-drawn aqueous samples for user-selected metals.
A measured amount of unknown sample is blended with a known amount of internal standard which is continuously nebulized, evaporated, and collected onto the filter tape. The liquid sample is aerosolized facilitating the removal of water and allowed metal salts to be concentrated on the filter tape. This method of pre-concentration allows detection limits in the low parts per billion (ppb) ranges for elements ranging from potassium to uranium.
The concentrated deposit is automatically advanced and analyzed by XRF for selected metals as the subsequent sample is collected. Sampling and analysis are performed continuously and simultaneously, except during the advancement of the tape (~20 sec) and during daily-automated quality assurance checks.
Measurement method:
– EPA method IO3.3: Determination of metals in ambient PM using XRF
Key applicable elements:
– Sb, As, Ba, Cd, Ca Cr, Co, Cu, Fe, Pb, Hg, Mn, Ni, Se, Ag, Sn, Ti, Tl, V, Zn, and more available.
Measurement range:
– 1,000ppm of any analyte
Detection limit:
-Depends on specific metal, sampling times, interfering metals and level of dissolved solids. See performance section.
Calibration stability check frequency:
-Automatically with each sample analyzed
Sampling and analysis times:
– Every 15,30, 60 or 120 minutes
Estimated recalibration frequency:
– Annually, when manufacturer’s operation recommendations followed
Sample flowrate:
– Application specific
Linearity:
– Correlation coefficient > 0.98
Size and weight:
– 19” x 24” x 60”
– 120 lb
– 19 inch rack-mountable
Required operating environment:
– Lab environment with temperature controlled to 20±3°C (68°F)
Power requirement:
– 120 VAC/60Hz @ 20 amp or
– 220 VAC/50Hz @ 10 amp circuit
Output:
– RS232, Modbus protocol
Options:
– Change or add elements
– Enclosure (NEMA 4, 4x, 12, or 12x)
– Remote control
– Remote polling
Minimum Detection Limits (ppb)
S ampling Time (min.)
Element Atomic Number 15 30 60 120
Cr 200 0.11 0.08 0.05 0.04
500 0.27 0.19 0.14 0.10
1000 0.55 0.38 0.27 0.19
3000 1.64 1.15 0.82 0.58
As 200 0.05 0.04 0.03 0.02
500 0.13 0.09 0.07 0.05
1000 0.27 0.19 0.13 0.09
3000 0.80 0.56 0.40 0.28
Zn 200 0.09 0.06 0.04 0.03
500 0.22 0.15 0.11 0.08
1000 0.44 0.31 0.22 0.15
3000 1.31 0.93 0.65 0.46
Ni 200 0.09 0.06 0.04 0.03
500 0.21 0.15 0.11 0.08
1000 0.43 0.30 0.21 0.15
3000 1.28 0.90 0.64 0.45
Pb 200 0.08 0.06 0.04 0.03
500 0.21 0.15 0.10 0.07
1000 0.41 0.29 0.21 0.15
3000 1.24 0.87 0.62 0.44
• Sampling, analysis, and near-real time reporting every 15, 30, 60, and 120 min in ppb
• Automatic quality assurance, alarms, and control features
• Proven XRF technology
• Identification and measurement of 23 elements simultaneously
• Incorporates an XRF stability check with every sample analyzed
• Provides and automatic daily upscale and QA checks
The Xact 920 monitoring system can simultaneously identify and measure multiple metals in liquid samples to provide data for use in the following applications:
• Waste water and water treatment plants
• Industrial and mining influent and effluent
• Drinking water
• Food and beverage industry
• Surface water
