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Summary of Contents for Metal Samples MS2500E
- Page 1 MS2500E Transmitter Operator’s Manual Metal Samples Company A Division of Alabama Specialty Products, Inc. 152 Metal Samples Rd., Munford, AL 36268 Phone: (256) 358-4202 Fax: (256) 358-4515 E-mail: msc@alspi.com Internet: www.metalsamples.com...
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Page 3: Table Of Contents
B. General Description ....................1 C. Principles of Operation ..................... 2 D. Technical Specifications ................... 3 II. Installation and Operation ....................4 A. Receiving the MS2500E Transmitter ................4 B. Installation ........................4 1. Mechanical Mounting .................... 4 Figure 1. Preferred Installation ................5 2. -
Page 5: General Description
Designed to be incorporated into a 20 mA current loop, the MS2500E Transmitter uses the principle of electrical resistance to deter- mine the corrosion rate of a metal specimen immersed in a process stream. The electrical resis- tance of a metal specimen is a physical property dependent on the specimen’s physical dimensions... -
Page 6: Principles Of Operation
0 to 100 units. The maximum probe measurement (20 mA) is equivalent to 1000 units. Expected probe life for elements presently available from Metal Samples are listed in the table below. l l i... -
Page 7: Technical Specifications
D. Technical Specifications Model MS2500E - Loop-Powered ER Transmitter (Ordering # IN2500) Physical Data Instrument Weight: 5.02 lb. (2.28 Kg) Total Weight w/ Accessories: 7.08 lb. (3.21 Kg) Instrument Dimensions: 5.81"H x 4.5"W x 4.81"D (14.76cm x 11.43cm x 12.22cm) -
Page 8: Installation And Operation
1. Mechanical Mounting The MS2500E must be mounted on a flat surface connected to earth ground. Locate it within 5 feet of the installed probe and connect the transmitter to the probe via Cb-8140 connection cable. -
Page 9: Electrical Connection
Figure 1. Preferred Installation 2. Electrical Connection The current loop cable used to connect the MS2500E Transmitter with its power supply must be a twisted pair, shielded, industrial gauge cable. The current loop cable enters the MS2500E via the Transmitter’s 1/2-inch NPT access hole and is connected to the two loop connection termi- nals located within the Transmitter enclosure. -
Page 10: Safe Area Wiring
Limiting electrical energy is the most practical method of protecting the MS2500E measuring system when the Transmitter is installed in a hazardous area. In the MS2500E system, electri- cal energy limits are maintained by the use of a repeater safety barrier (or its equivalent) installed in the 4-20 mA current loop per standard practice. -
Page 11: Probe Selection Terminals
Transmitter and will relay the signal to the data receiv- ing station. Caution: When a safety barrier is used with the MS2500E system, the current loop cable must be connected to the barrier’s hazardous area terminals. All other connections must be made to the barrier’s safe area terminals. - Page 12 P = Prover value Should the instrument be outside the calibration limits, the following recalibration should be carried out before rechecking with the meter prover Refer to the figure below while completing the following calibration procedure for the MS2500E Transmitter. MS2500 Figure 2.
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Page 13: Operation
* 20mA setting is illustrated in Figure 3 below. 4-20mA Loop Connection Switches are UP TUBE Calibration WIRE Potentiometers SPEC TEST Digital Circuit Board Probe Selection Switch Switch is DOWN Figure 3. Switch Locations and Orientation 3. Operation As shown in Figure 4, the transmitter output is linear. Initial Transmitter current output begins at 4mA and increases to a maximum of 20mA. -
Page 14: Determining Corrosion Rate
1000 Probe Units Probe Start Probe Finish Figure 4. Output Linearity Relationship 4. Determining the Corrosion Rate Use the following formula to determine the corrosion rate occurring at the installed probe: (mils) Probe Reading (mA) Effective Probe Life (mils) 365 (days) Corrosion Rate (year) 16 (mA) -
Page 15: Maintenance
3. Recalibrate the MS2500E Transmitter following the calibration procedure. 4. Contact Metal Samples for technical assistance if the Transmitter continues to malfunction following recalibration or if the Transmitter is obviously damaged. If advised to return the MS2500E for repair, follow the Instructions for Returning the Instrument for Repair. -
Page 16: Returning The Instrument For Repair
Metal Samples 152 Metal Samples Road Munford, AL 36268 3. Contact Metal Samples by telephone (256) 358-4202 or by fax (256) 358-4515 and inform your sales representative of: a. the name of the airline carrying the instrument b. the flight number c. -
Page 17: Maintenance And Repair Instructions
III. Maintenance and Repair Instructions This form may be photocopied for use when returning instruments to Metal Samples for repair. Please fill in all known information. Enclose a copy of the filled in form with the instrument. CHECK ONE: Repair this instrument under warranty. - Page 18 Address: Telephone Number: INVOICE INSTRUCTIONS: DESCRIPTION OF TROUBLE: (A clear description of the problem may shorten the repair time.) URGENCY OF REPAIR: Shipping Address: Metal Samples 152 Metal Samples Road Munford, AL 36268...
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Page 19: Warranty Information
IV. Warranty Information Metal Samples warrants that any part of the MS2500E and accessories which proves to be defective in material or workmanship within one year of the date of original shipment to Purchaser will be repaired or replaced, at Metal Samples option, free of charge. This warranty does not cover (1) probe assem- blies, (2) items expendable in nature, or (3) items subject to damage from normal wear, misuse or abuse, or failure to follow use and care instructions.
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