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Model ER4000

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Electrical Resistance Probe
Retractable with Packing Gland and Loop Element

Model ER4000 is a retractable, electrical resistance probe commonly used in field and plant applications. A specially designed packing gland is used with the probe for insertion into or retraction from a pressurized system without a process shutdown. Standard packing material in the packing gland is Teflon^®. Grafoil packing can be provided if requested. When the probe element requires replacement, the packing gland assembly may be reused. (Probe packing should also be replaced at this time.) The probe is designed to mount onto a 1" piping system, but can easily be adapted to fit your specific requirements. The probe assembly consists of a replaceable insertion rod with an element, a hermetically sealed connector welded in place, and a packing gland. A safety chain and safety nut are also provided to prevent blowout. A velocity shield can be added to the assembly if required. The insertion length (I.L.) is calculated to the end of the shield or to the end of the element if a shield is not present. Probe length can be specified by the customer. For standard probes, the maximum insertion length is given in the chart below. Several standard elements are available to meet your specific needs.

Specifications: Probe Body - 316 Stainless Steel Element Seal - Glass or Teflon^® Fill Material - Ceramic Temperature Rating - 500° F / 260° C  Pressure Rating - 1500 PSI / 102 Bar Mounting - 1" Full Port Valve (Min.)	STD. LENGTH	I.L. (max)
	24"	17.60"
	30"	23.60"
	36"	29.60"
	42"	35.60"

The Easy Tool is required for probe insertion or retraction in systems with pressure over 150 pounds.

See Retractable Systems video.
See Packing Gland Instructions and Safety Chain Instructions.
See Length Calculation and Accessories for Retractable Probes.

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ER4000 Ordering Information

Model
ER45	- Electrical Resistance 1" Female NPT Probe, Packing Gland with Teflon®
ER75	- Electrical Resistance 1" Female NPT Probe, Packing Gland with Grafoil
ER00	- Electrical Resistance Replacement Insertion Rod
¦	Probe Body Material
¦	2	- 316
¦	4	- C276
¦	¦	Packing Gland Material
¦	¦	0	- N/A (replacement insertion rod)
¦	¦	2	- 316
¦	¦	4	- C276
¦	¦	¦	E/R Element Options
¦	¦	¦	00	- WR40 Wire Loop - 40 mil thickness (10 mil useful probe life)
¦	¦	¦	10	- WR80 Wire Loop - 80 mil thickness (20 mil useful probe life)
¦	¦	¦	20	- TU04 Tube Loop - 4 mil thickness (2 mil useful probe life)
¦	¦	¦	30	- TU08 Tube Loop - 8 mil thickness (4 mil useful probe life)
¦	¦	¦	80	- SL05 Strip Loop - 5 mil thickness (1.25 mil useful probe life)
¦	¦	¦	90	- SL10 Strip Loop - 10 mil thickness (2.5 mil useful probe life)
¦	¦	¦	¦	Seal Type
¦	¦	¦	¦	1	- Glass
¦	¦	¦	¦	2	- Teflon^®
¦	¦	¦	¦	3	- Epoxy
¦	¦	¦	¦	¦	Length
¦	¦	¦	¦	¦	24	- 17.60 inches max. insertion length
¦	¦	¦	¦	¦	30	- 23.60 inches max. insertion length
¦	¦	¦	¦	¦	36	- 29.60 inches max. insertion length
¦	¦	¦	¦	¦	42	- 35.60 inches max. insertion length
¦	¦	¦	¦	¦	¦	Element Alloy
¦	¦	¦	¦	¦	¦	XXX	- Use Code in Alloy Chart
¦	¦	¦	¦	¦	¦	¦	E/R Probe Options
¦	¦	¦	¦	¦	¦	¦	00	- No shield
¦	¦	¦	¦	¦	¦	¦	01	- Shield, coupon adaptor (118), hardware
¦	¦	¦	¦	¦	¦	¦	02	- Shield, coupon adaptor (220), hardware
¦	¦	¦	¦	¦	¦	¦	03	- Shield
¦	¦	¦	¦	¦	¦	¦	¦
ER45	2	2	10	1	36	375	02	Example of Probe Ordering #

For alloys, sizes, or other special requirements not listed, please contact our sales department.

Alloy Chart
Code	Description	UNS #
375	C1010	G10100
538	5Cr 1/2mo	K42544
541	9Cr 1mo	K90941
186	410 S.S.	S41000
141	304 S.S.	S30400
159	316L S.S.	S31603
A12	C276	N10276
602	Alloy 625	N06625
419	CDA110	C11000
434	CDA443	C44300

Not all alloys are available with all element types and seals.

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Contact Metal Samples Corrosion Monitoring Systems sales department for pricing and availability.

Main Office:
Phone: (256) 358-4202
Fax: (256) 358-4515
E-mail: msc@alspi.com

Houston Office:
Phone: (281) 471-2777
Fax: (281) 471-3405

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