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MS4500L LPR Data Logger

View data sheet (PDF)
User's Manual (PDF)
Instrinsic Safety Certifications

The MS4500L is a hand-held, battery- powered, corrosion meter capable of measuring and storing data from Linear Polarization Resistance (LPR) corrosion probes. The instrument is light weight, microprocessor-based, and features a simple, menu-driven interface using a keypad and a backlit graphical LCD display. Corrosion rate measurements are made using the Linear Polarization Resistance method. The instrument measures the current required to polarize the electrodes of a probe to a known potential. From the polarization potential and the measured current, the polarization resistance and corrosion rate can be calculated.	Probe shown in photo not included with corrosion meter
MS4500L measures general corrosion, localized corrosion and conductance. The instrument utilizes state-of-the-art algorithms and data analysis techniques to accurately measure general corrosion rate and pitting. Harmonic distortion analysis (HDA) is applied to improve the performance of the industry-accepted linear polarization resistance (LPR) technique used to measure corrosion rate.
To further enhance the performance, an application-specific Stern-Geary variable (B value) is calculated and updated every measuring cycle. There is no need to manually update the B value because of process changes. During the measurement cycle, the MS4500L also performs an automated electrochemical noise (ECN) measurement which, in combination with the corrosion rate data, can provide a measurement of localized corrosion (pitting). After taking a reading, the instrument displays conductance in µS, general corrosion rate in mils per year (mpy) and localized corrosion values. The reading can then be stored to memory or discarded. All stored readings are automatically tim e and date stamped. Readings are stored to non-volatile Flash memory which retains data without the need for a battery backup.

On-screen charting	Transfer data directly to USB Flash drive

The MS4500L can store 16,000 readings per probe on up to 125 different probes. Stored data can be downloaded directly to a certified data transfer unit in hazardous areas and regular USB Flash (“jump”) drive in non-hazardous areas. Data can be opened and charted using the provided Corrosion Data Management software or can be imported into any standard data analysis (spreadsheet) program such as Microsoft Excel. Data can also be reviewed and charted on the instrument’s LCD display for quick reference.

Technical Specifications

Model

MS4500L - Handheld LPR Corrosion Data Logger

Physical Data

Instrument Weight*:

2.13 lb. (0.97 kg)

Total Weight w/ Case & Accessories:

7.40 lb. (3.35 kg)

Instrument Dimensions*:

8.57" H x 4.54" W x 2.38" D (21.77cm x 11.53cm x 6.05cm)

Carrying Case Dimensions:

14.50" H x 11.38" W x 5.88" D (36.83cm x 28.89cm x 14.92cm)

Operating Temperature:

-13° to 140°F (-25° to 60°C)

Storage Temperature:

-13° to 158°F (-25° to 70°C)

* Includes protective boot.

Measurement Data
Probe Type:	2-Electrode LPR and 3-Electrode LPR
Measurement Type:	General Corrosion	Localized Corrosion	Conductance
Measurement Unit:	mpy (mils per year) or mmpy (mm per year)	Unitless	microSiemens (µS)
Mesurement Range(s): Default Range: Low: Maximum:	0 to 40 mpy (0 to 1 mmpy) 1000 mpy (25 mmpy)	0.0 to 1.0 0.0 to 0.3 0.3 to 1.0	5 to 333,333
Maximum Measured Error:	Excitation voltage <0.05% of full span
	Corrosion current measurement <0.2% of full span
Factory Settings:	B value (Stern Geary value): 25.6 mV K value (corrosion constant): 11800 (2e- in reaction)
Measurement Cycle:	4 to 21 minutes (depends on configuration)

Electrical Data

Power Requirements:

Four AA Batteries - Duracell PC1500 (or Duracell MN1500)

Maximum Probe Cable Distance:

12 ft (3.6 m)

Download Method:

Directly to certified data transfer unit (in hazardous areas)
To non-certified USB Flash drive (in non-hazardous areas only)

Hazardous Location Certifications - Intrinsic Safety

USA / Canada
For use in Class I Zone 0 AEx ia [ia] IIC T4 Ga
Ex ia [ia] IIC T4 Ga
Class I, Division 1, Groups A,B,C & D, T4
Provides outputs to Class I, Division 1 [Ex ia]
- 25°C ≤ Ta ≤ + 60°C

Europe and Worldwide (ATEX and IECEx)
II 1 (1) G Ex ia [ia] IIC T4 Ga
- 25°C ≤ Ta ≤ + 60°C
ATEX Certificate No: ITS18ATEX203161X
IECEx Certificate No: IECEx ETL 18.0007X

Special Features

LPR measurement with Harmonic Distortion Analysis
Backlit graphical LCD display (240 x 128 pixel resolution)
On-screen charting
Automatic data-logging
Non-volatile Flash memory
Multilingual menu (English, Spanish, Portuguese, French)

Included Accessory Items

Carrying Case, Probe Cable (1' coiled - 6' extended), Meter Prover, Operation Manual, Corrosion Data Management Software, Protective Boot

Optional Accessory Items

Certified Data Transfer Unit
Certified USB Barrier

MS4500L Ordering Information

Model
MS4500L - High-Resolution Handheld ER Corrosion Data Logger
	Your Part Number

Description:	Quantity:

Metal Samples Company
P.O. Box 8
152 Metal Samples Rd.
Munford, AL 36268

Phone: (256) 358-4202
Fax: (256) 358-4515

E-mail: msc@alspi.com