AH500E
MTL AUTOMATED FILTER WEIGHING SYSTEM
Compliance: 40 CFR 1065 • WLTP • EURO 4, EURO 5, EURO 6
The AH500E from MTL is the newest technology available to the engine emissions industry forprocessing gravimetric ﬁlters. Integrating a climate-controlled micro-environment and automatedweighing system in one compact unit, MTL's latest offering is faster, better, and cheaper thanever before. Automatic reading of barcoded ﬁlters saves time and improves quality control. The
AH500E accommodates 15 mm, 36.2 mm, 37 mm, 46.2 mm, 70 mm, and 90 mm ﬁlters.

Filter Size
15mm
25mm
37mm

System Capacity
600 ﬁlters
600 ﬁlters
600 ﬁlters

46.2mm

600 ﬁlters

47mm

600 ﬁlters
400 ﬁlters
400 ﬁlters

70mm
90mm

Integrated MTL Filter Weighing Software (FWS)
All versions of the AH500E weighing system are controlled by MTL’s Filter
Weighing Software (FWS). FWS monitors environmental conditions andcan be programmed to throw ﬂags or stop weighing when environmental
conditions are out of tolerance. It performs buoyancy corrections on ﬁlters,
can be set to weigh each ﬁlter multiple times, and records all data to an MS
SQL Server database. For a complete description of FWS features, pleasesee our associated sales sheet identiﬁed as “MTL Filter Weighing Software”
Measurement Technology Laboratories, LLC
10850 Nesbitt Ave S., Minneapolis, MN 55437+1-952-888-0762 | http://www.mtlcorp.com

Uncontrolled Copy. Features and listing are subject to change without notice. Please contact sales@mtlcorp.com for the most updated information.

FEATURES AND SPECIFICATIONSFeatures• Compact design saves valuable laboratory space• Large capacity (600 ﬁlters) allows laboratory staff to be freed up for other important work• Low energy consumption• Barcode reading technology can read printed 2D Data Matrix codes on ﬁlters or on ﬁlter carriers• Data stored to MS SQL Server database with a variety of data export options
Weighing• Repeatabilityo < 0.25 μg on metal check standards
o < 0.30 μg MTL GP47, Pall TX40, and other glass ﬁber media
o < 0.65 μg on MTL PT47, Whatman 47mm, and other PTFE ﬁlters• Buoyancy correction of weighing results to account for changes in air density• Weighing methods
o Direct read method zeroes the balance, weighs the ﬁlter, and records the resulto Drift-corrected method zeroes the balance, weighs the ﬁlter, and then records the post-ﬁlter
zero reading to correct for the balance’s tendency to drift with timeo Substitution weighing compares the ﬁlter result to the result of a traceable metal standard, thereby eliminating linearity uncertainty• Time per weighing: 2 min on direct read single weighing, 7 min on triplicate weighing with drift-correction,
14 min on substitution weighing in triplicate
Quality Assurance• Automated balance calibration at administrator-determined intervals• Automated balance repeatability tests with historical performance charting• Weighing of reference ﬁlters and metal standards at administrator-determined intervals• Environmental monitoring with historical and control charting• Programmable to pause or stop weighing when environmental conditions are out of tolerance• Automatic re-weighing if standard deviations exceed a speciﬁed range
General• Power: 13 amp, 220 VAC @ 50/60Hz• Dimensions: 950 mm width x 660 mm depth x 914 mm height (37.5”W x 26”D x 36”H)• Filter diameters accepted: 15, 25, 36.2, 37, 46.2, 47, 70, 90 mm• Capacity: 600 test ﬁlters; 21 reference ﬁlters and/or metal standards• Water: < 1 liter/hr for supply and drain• Electrostatic discharge available options:o Faraday cage weighing pan for neutralization of static impacto Po-210 static discharge strips
o Corona discharge system
Conﬁgurations
AH500E-4700-6 – 47mm (and smaller), 1 μg weighing resolution
AH500E-4700-7 – 47mm (and smaller), 0.1 μg weighing resolution
AH500E-4790-6 – 47mm, 70mm, 90mm ﬁlters, 1 μg weighing resolution
AH500E-4790-7 – 47mm, 70mm, 90mm ﬁlters, 0.1 μg weighing resolution
EC1000 – Environmental Control Chamber (no automated system inside)

Measurement Technology Laboratories, LLC
10850 Nesbitt Ave S., Minneapolis, MN 55437+1-952-888-0762 | http://www.mtlcorp.com
Uncontrolled Copy. Features and listing are subject to change without notice. Please contact sales@mtlcorp.com for the most updated information.