OMRON BF-[](R) / BS-1(T) catalog

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For ordering in Singapore, please note some product models not sold in Singapore may be included in the following catalog(s) for our global customers.

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Catalog Name	Catalog Number [size]	Last Update
BF-[](R), BS-1(T) Data Sheet	- [765KB]	Feb 15, 201820180215	BF-[](R), BS-1(T) Data Sheet
Safety Precautions for Electrodes and Electrode Holders	- [206KB]	Mar 01, 201820180301	Safety Precautions for Electrodes and Electrode Holders

OMRON BF-[](R) / BS-1(T) specification

last update: September 24, 2012

Model	BF-1	BF-3(R) *1	BF-5(R) *1	BS-1	BS-1T
No. of Electrodes	1	3	5	---	---
Insulator material	PPS resin (Metallic section is SUS.)			Fluorocarbon polymer (PFA)
Insulation resistance	100 MΩ
Operating temperature	Electrode section: -10 to 150°C (with no icing) Terminal section: -10 to 70°C (with no icing or condensation)			250°C max.	180°C max.
Operating pressure	Atmospheric pressure			1.96 MPa *2	981 kPa *2
Applications	Liquids with low specific resistance, such as wastewater and cloudy water	General applications for purified water and wastewater		Boiler water level detection or high- temperature tanks	Acid or alkaline solution level detection

Note:Two-wire Electrode Holders (R models) have a built-in resistance of 6.8 kΩ. They should be used with the Two-wire 61F Controllers.

Note:There must be a sufficient ambient temperature in a high-pressure environment to prevent vapor leakage. Use the Electrode Holder according to the following pressure-temperature curve.

last update: September 24, 2012

OMRON BF-[](R) / BS-1(T) lineup

last update: February 15, 2018

Electrode Holders

Application		Model
Liquid with low specific resistance	For 1-pole electrode	BF-1
When sturdy mounting is required	For 3-pole electrode	BF-3
	For 3-pole electrode (2-wire)	BF-3R
	For 5-pole electrode	BF-5
	For 5-pole electrode (2-wire)	BF-5R
Applications where resistance to high-temperature, high-pressure is required For 1-pole electrodes, 250°C, 1.96 Mpa		BS-1
		BS-1S
		BS-1S-1
		BS-1S2
High-pressure application where resistance to corrosion is required	For 1-pole electrode, SUS304 981 kPa	BS-1T SUS304
	For 1-pole electrode, SUS316 981 kPa	BS-1T SUS316
	For 1-pole electrode, Titanium 981 kPa	BS-1T TITANIUM
	For 1-pole electrode, HAS B 981 kPa	BS-1T HAS B
	For 1-pole electrode, HAS C 981 kPa	BS-1T HAS C

Accessories (Order Separately)

Application	Model
Protective Cover (For PS-[]S and BF-3/-5)	F03-11
Protective Cover (For BS-1, BS-1S and BS-1T)	F03-19
M18 Nut (For BS-1)	F03-17
M18 Nut (For BS-1T)	F03-18

Note: Refer to Installing an Electrode Holder on a Tank under Level Controller Installation in the Technical Guide for
          Level Controllers for information on Level Controller installation.
          Refer to PS-[]S(R) Electrode Holder Accessories (Order Separately) for dimensions.

last update: February 15, 2018

OMRON BF-[](R) / BS-1(T) dimension

last update: October 07, 2015

BF-1

BF-3(R)
BF-5(R)

BF-3(R)

BF-5(R)

BS-1

* If it is not necessary to seal the tank inside and outside.
  The Electrode can be secured with F03-17 Nuts. (Refer to Data Sheet.)

BS-1S
BS-1S-1
BS-1S2

BS-1T

*1. All of the clamping section is made of fluororesin.
*2. If it is not necessary to seal the tank inside and outside.
       The Electrode can be secured with F03-18 Nuts. (Refer to Data Sheet.)
*3. The material of the Connecting Nuts is the same as the material of the BS-1T. Connecting Nuts made of HAS B,
       HAS C, or titanium, however, do not have the screw or screw hole labeled 2-M4 in the figure.
*4. The section shown with dotted lines is sold separately.

last update: October 07, 2015

• NO. BF-[](R) / BS-1(T)
• TYPE:Level Switches Electrode Holders / Electrodes Copyright Statement
• DATE:2021-06-11
• Associated products:
  PS-[]S(R) / -31 Electrode Holder/Features F03-[] Electrodes and Accessories/Features