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MS2901E High Resolution ER Transmitter

4-20 mA / HART Output

View Data Sheet (PDF)
Hazardous Location Certifications
Device Descriptor files (download)

Metal Samples' new compact MS2901E ER Transmitter (ERT) measures all types of electrical resistance (ER) corrosion probes using state-of-the-art algorithms and data analysis. The new high-resolution, 16-bit measurement provides faster response, obtaining corrosion rates in hours instead of days. Metal loss gets updated and transmitted after each measurement cycle in the form of 4-20mA / HART signal.

The transmitter is provided in a weather-proof (IP 66 / NEMA-4X) and explosion proof cast aluminum enclosure. It is designed to be mounted directly to the probe, but can also be mounted nearby using the optional mounting kit and a customer-supplied mounting pole.

The MS2901E is completely loop-powered with an in-built isolator, so installation is simple. No external isolator/barrier is necessary. A two-wire connection is all that is required for both instrument power and data transmission. Setup is also simple, using a set of switches to select the probe type to be measured.


 
 

Technical Specifications

Model
MS2901E - High Resolution ER 4-20mA HART Transmitter, Direct Mount
MS2901E-XX* - High Resolution ER 4-20mA HART Transmitter, Remote Mount
XX* = Cable length in feet, up to 30 feet maximum, in 5 foot increments.
 
Physical Data
Instrument Weight: 5.25 lb. (2.38 Kg)
Total Weight w/ Accessories: 7.31 lb. (3.31 Kg)
Instrument Dimensions: 9.0" H x 5.3" W x 5.0" D
(22.86cm H x 13.46cm W x 12.70cm D)
 
   
Operating Temperature: -40° to 158°F (-40° to 70°C)
Storage Temperature: -40° to 176°F (-40° to 80°C)
   
Enclosure Material: Cast Aluminum (Copper-Free)
Mounting Specifications: Direct probe mount or Remote mount
(Up to a 2.5" (6.35 cm) Dia. pole)

   
Performance Data  
Measurement Type: ER measurement using any standard ER probe type
(Wire Loop, Tube Loop, Cylindrical, Flush, Strip, etc.)
Range: 0-100% of probe life
Resolution: 0.0015% of Probe Life (16-bit)
Cycle Time: ~1 Minute
   
Electrical Data  
Connection: 4 to 20 mA with HART, 2 Wire
Power Requirements: 11 to 28 VDC
Current Consumption: 4 to 22.5 mA
Maximum 20mA without alarm/22.5mA with alarm
Electrical Connection: 1/2” NPT entry with Ex Gland
3/4” or other entries are available with adaptors*
Maximum Probe Cable Distance: 30 ft (9.1 m)
   
Output Data  
Output Signal: 4-20mA output with HART protocol
Alarm Signal: - Current Output Configurable
- Digital interface
Load: - min. 250 Ohms for HART Communication
   
Hazardous Location Certifications
   
Europe and Worldwide
(ATEX and IECEx)
II 2(1) G Ex db [ia Ga] IIC T6….T4 Gb
II 2(1) D Ex tb [ia Da] IIIC T85°C …T130°C Db
- 40°C ≤ Tamb ≤ + 70°C
Ex db [ia Ga] IIC T6….T4 Gb
Ex tb [ia Da] IIIC T85°C …T130°C Db
- 40°C ≤ Tamb ≤ + 70°C

 

ATEX Certificate No: ITS14ATEX27981X
IECEx Certificate No: IECEx ITS 14.0010X

   
USA and Canada
(ETL)
Class I, Zone 1, AEx db [ia Ga] IIC T6….T4 Gb
Class I, Division 2, Groups A, B, C & D, T6…T4
   
Hazardous Location Certifications - Enclosure
Case Specifications: Explosion Proof (FM, CSA, UL)
  IP 66, NEMA 4X, 7BCD, 9EFG
   
Included Accessories (Direct-Mount Model)
Meter Prover, Operations Manual
   
Included Accessories (Remote-Mount Model)
Meter Prover, Operations Manual, Probe Cable, Mounting Hardware Kit

   
*Contact Metal Samples for special cables and cable entries.



MS2901E Ordering Information

Model
MS2901E - High Resolution ER 4-20mA HART Transmitter, Direct Mount
MS2901E-XX* - High Resolution ER 4-20mA HART Transmitter, Remote Mount
  XX* = Cable length in feet, up to 30 feet maximum, in 5 foot increments.

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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


 
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Metal Samples Company is a division of Alabama Specialty Products, Inc. - Copyright © 2022