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Model ER7100-ME

Special* ER Probe with Cylindrical Element
Retrievable Type for use in High Pressure (HPTM and MHTM) Access Systems

View data sheet (PDF)


Model ER7100-ME series of probes operates based on the ER technique, and is specially designed for use with high resolution instruments from other suppliers. Model ER7100-ME probes are manufactured using superior materials and techniques to provide improved performance. Better potting materials ensure greater stability by improving heat-transfer efficiency, while laser-welded wire connections extend the functional temperature range of the probe, and ensure reliable, low-resistance connections.

Model ER7100-ME is a fixed-length, cylindrical-type, retrievable probe for use with HP™ and MH™ high pressure access systems. This allows the probe to be installed in the process, using a retrieval tool and service valve, without process shutdown. The insertion length (I.L.) can range from a minimum of 5" up to any length specified by the customer in 1/8" increments, using the formula:

I.L. = PD + WT + 1.75"
(where PD = penetration depth, WT = wall thickness)

Note: Formula valid for access fitting heights of 5.25" (HP) and 5.5" (MH).

The cylindrical element is all-welded and does not utilize a non-metallic seal. This extends its operating range
and makes it ideal for higher temperature applications. Velocity shields are available for high-flow systems.

* Model ER7100-ME is designed to be compatible with high-resolution or "high speed" instruments from other manufacturers. For the Metal Samples standard probe see model ER7100.


Probe Body - 316 Stainless Steel (other materials available upon request)
Element Seal - Metal / All-Welded
Fill Material - Ceramic
Temperature Rating - 500° F / 260° C
Pressure Rating - 3600 PSI / 245 Bar
Mounting - High Pressure (HPTM or MHTM) Access System with Hollow Plug


ER7100-ME Ordering Information

HR - High-Resolution Electrical Resistance Probe for High Pressure (HP and MH) Access Systems
  Probe Body Material
2 - 316 SS
3 - C276
  Connector Type
5 - Small/Threaded Connector
  ER Element Options
50 - CT10 Cylindrical - 10 mil thickness (5 mil useful probe life)
60 - CT20 Cylindrical - 20 mil thickness (10 mil useful probe life)
70 - CT50 Cylindrical - 50 mil thickness (25 mil useful probe life)
Enter length in inches, stated in 2 decimal place format (Example: 6 1/8" = 0612)
Click here to open Length Calculator
  Element Alloy1
375 - Pipe Grade Carbon Steel2
141 - 304L Stainless Steel
159 - 316L Stainless Steel
  Shield Options
00 - No shield
01 - Standard Shield
02 - High-Velocity Shield
-ME - Special
Your Part Number



This list represents our most common options.  Many other sizes, alloys, and options are available.
Please contact your Metal Samples sales representative if you do not see what you're looking for.
(Note: Not all alloys are available with all element types and seals.)

1 Other element alloys available.
2 Chemically equivalent ro common pipe-grade carbon steels.
Metal Samples Company

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

: (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 © 2023