1
CSM_ES1B_DS_E_3_2
Infrared Thermosensor
ES1B
Achieve Low-cost Measurements with an
Infrared Thermosensor.
• The ES1B has an electromotive output as high as that of a
thermocouple, thus connecting directly to the thermocouple input
terminal of the Temperature Controller is possible.
• Four temperature ranges are available to cover a wide range of
temperature measurement needs, including those in the food
processing, packaging, molding, and electronics industries.
• High-accuracy temperature measurement is ensured by a high-speed
response of 300 ms (for a 63% response) and an indication
reproducibility of ±1% PV.
• Unlike thermocouples, the Thermosensor does not deteriorate.
Therefore, stable, real-time temperature control can be maintained.
Refer to Safety Precautions for All Temperature
Controllers.
Ordering Information
■List of Models
Application Examples
Appearance and sensing characteristic Specification (temperature range) Model
10 to 70°CES1B
60 to 120°C
115 to 165°C
140 to 260°C
2 dia. 20 dia.
2 mm 20 mm 40 mm 60 mm
40 dia. 60 dia.
ES1B
Film
Vertically
heating rolls
Horizontally
heating rolls
Temperature Control of Ironing Portion
Temperature Measurement of Sheet Molding
Machines and Resin Extrusion Machines
Detecting Excessive Heat Radiation
of Bearings
ES1B
High-tension line
High-tension
distribution
panel
Detecting Excessive Heat Radiation of
High-tension Distribution Boards or Transformers
ES1B
Molding trays
Conveyor
Resin
ES1B
Bearing
DC
power
supply
DC
power
supply
ES1B
ES1B
ES1B
ES1B
Power supply (+)
Power supply (−)
Power supply (+)
Power supply (−)
Output (+)
Output (+)
Output (−)
Output (−)
DC power
supply
DC power
supply
Temperature
Controller
Temperature
Controller
DC power
supply
Power
supply (+)
Power
supply (−)
Output (+)
Output (+)
Output (−)
Output (−)
Note: 1. Either a 12 VDC or 24 VDC power supply
is required for the ES1B.
2. To measure the difference in temperature
between two points, use two isolated
power supplies.
Do not use the Infrared Thermosensor in locations where the ambient temperature changes rapidly.
To use the Infrared Thermosensor in locations subject to rapid changes in temperature due to
radiant heat or movement of hot air, use a heat shield or other method to reduce rapid changes in
temperature as much as possible.
ES1B
2
Specifications
■Ratings/Characteristics
Note: 1. Based on characteristics of K-type thermocouple and radiation rate of 0.98.
2. The accuracy is given as the change in temperature from any reference temperature of the sensing object. For example, if the reference
temperature is 50°C, the accuracy at 55°C would be ±2% PV or ±2°C, whichever is larger and the accuracy at 60°C would be ±4% PV
or ±4°C, whichever is larger.
Dimensions
Note: All units are in millimeters unless otherwise indicated.
Adjustment Methods
Adjust the Thermosensor as described below before using it.
Adjust the Thermosensor according to the conditions of the sensing object and characteristics of the
Temperature Controller.
Offset Compensation for Target Value with Input Shift Function
Item ES1B
Power supply voltage 12/24 VDC
Operating voltage range 90% to 110% of the power supply voltage
Current consumption 20 mA max.
Measuring temperature range 10 to 70°C, 60 to 120°C, 115 to 165°C, 140 to 260°C
Accuracy
(See note 1.)
±5°C (See note 2.) ±2% PV or ±2°C, whichever is larger
±10°C (See note 2.) ±4% PV or ±4°C, whichever is larger
±30°C (See note 2.) ±6% PV or ±6°C, whichever is larger
±40°C (See note 2.) ±8% PV or ±8°C, whichever is larger
Reproducibility ±1% PV or ±1°C, whichever is larger
Temperature drift 0.4°C/°C max.
Sensing distance vs. sensing diameter 1:1 typ.
Measurement wavelength 6.5 to 14.0 μm
Receiver element Thermopile
Response speed Approximately 300 ms at response rate of 63%
Output impedance 1 to 4 kΩ
Operating temperature −25°C to 70°C (with no icing or condensation)
Allowable ambient humidity 35% to 85%
Vibration resistance (destruction) 98 m/s2 for 2 hours each in X, Y, and Z directions at 10 to 55 Hz
Shock resistance (destruction) 300 m/s2 for 3 times each in X, Y, and Z directions
Casing material ABS resin
Degree of protection IP65
Applicable safety standards CE Marking
Weight Approx. 120 g
Cable Compensating conductor: 3 m
PVC-covered cable with a shield wire resisting 70°C
Mounting Lock Nuts (Two) (Provided)
17.814.2 dia.
36.5
15
6.5
44.5 3,000
ABS resin
PVC-covered
(−25°C to 70°C)
Polyolefin tube
Screw M18×1.0 7
26
24
Green, Output +
White, Output −
Orange, Power +
Shield, Power −
ES1B
ES1B
3
Gain and Offset Compensation with Two-point Shift Function
Connections
Safety Precautions
Refer to the ES1B Infrared Thermosensor datasheet (Cat. No. H127) for application precautions.
Temperature Controller
(such as E5CS)
The error caused at the
time the Thermosensor is
connected to the
Temperature Controller.
Compensated with the
input shift function of
the Temperature
Controller
Target value
(Actual temperature of sensing object sample)
PV display of
Temperature
Controller
Temperature
characteristics of
target sensing
object
Temperature Controller
Green, Output +
White, Output −
+
-
Thermocouple
(K)
input terminals
DC power supply
Orange, Power +
Shield, Power −
12/24 VDC
GND
In the interest of product improvement, specifications are subject to change without notice.
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.
Terms and Conditions Agreement
Read and understand this catalog.
Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you
have any questions or comments.
Warranties.
(a) Exclusive Warranty. Omron’s exclusive warranty is that the Products will be free from defects in materials and workmanship
for a period of twelve months from the date of sale by Omron (or such other period expressed in writing by Omron). Omron
disclaims all other warranties, express or implied.
(b) Limitations. OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, ABOUT
NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OF THE PRODUCTS. BUYER
ACKNOWLEDGES THAT IT ALONE HAS DETERMINED THAT THE
PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE.
Omron further disclaims all warranties and responsibility of any type for claims or expenses based on infringement by the
Products or otherwise of any intellectual property right. (c) Buyer Remedy. Omron’s sole obligation hereunder shall be, at
Omron’s election, to (i) replace (in the form originally shipped with Buyer responsible for labor charges for removal or
replacement thereof) the non-complying Product, (ii) repair the non-complying Product, or (iii) repay or credit Buyer an amount
equal to the purchase price of the non-complying Product; provided that in no event shall Omron be responsible for warranty,
repair, indemnity or any other claims or expenses regarding the Products unless Omron’s analysis confirms that the Products
were properly handled, stored, installed and maintained and not subject to contamination, abuse, misuse or inappropriate
modification. Return of any Products by Buyer must be approved in writing by Omron before shipment. Omron Companies shall
not be liable for the suitability or unsuitability or the results from the use of Products in combination with any electrical or
electronic components, circuits, system assemblies or any other materials or substances or environments. Any advice,
recommendations or information given orally or in writing, are not to be construed as an amendment or addition to the above
warranty.
See http://www.omron.com/global/ or contact your Omron representative for published information.
Limitation on Liability; Etc.
OMRON COMPANIES SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,
LOSS OF PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS,
WHETHER SUCH CLAIM IS BASED IN CONTRACT, WARRANTY, NEGLIGENCE OR STRICT LIABILITY.
Further, in no event shall liability of Omron Companies exceed the individual price of the Product on which liability is asserted.
Suitability of Use.
Omron Companies shall not be responsible for conformity with any standards, codes or regulations which apply to the
combination of the Product in the Buyer’s application or use of the Product. At Buyer’s request, Omron will provide applicable
third party certification documents identifying ratings and limitations of use which apply to the Product. This information by itself
is not sufficient for a complete determination of the suitability of the Product in combination with the end product, machine,
system, or other application or use. Buyer shall be solely responsible for determining appropriateness of the particular Product
with respect to Buyer’s application, product or system. Buyer shall take application responsibility in all cases.
NEVER USE THE PRODUCT FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY OR IN LARGE
QUANTITIES WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS,
AND THAT THE OMRON PRODUCT(S) IS PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE
OVERALL EQUIPMENT OR SYSTEM.
Programmable Products.
Omron Companies shall not be responsible for the user’s programming of a programmable Product, or any consequence
thereof.
Performance Data.
Data presented in Omron Company websites, catalogs and other materials is provided as a guide for the user in determining
suitability and does not constitute a warranty. It may represent the result of Omron’s test conditions, and the user must correlate
it to actual application requirements. Actual performance is subject to the Omron’s Warranty and Limitations of Liability.
Change in Specifications.
Product specifications and accessories may be changed at any time based on improvements and other reasons. It is our
practice to change part numbers when published ratings or features are changed, or when significant construction changes are
made. However, some specifications of the Product may be changed without any notice. When in doubt, special part numbers
may be assigned to fix or establish key specifications for your application. Please consult with your Omron’s representative at
any time to confirm actual specifications of purchased Product.
Errors and Omissions.
Information presented by Omron Companies has been checked and is believed to be accurate; however, no responsibility is
assumed for clerical, typographical or proofreading errors or omissions.
2014.4
In the interest of product improvement, specifications are subject to change without notice.
OMRON Corporation
Industrial Automation Company
http://www.ia.omron.com/
(c)Copyright OMRON Corporation 2014 All Right Reserved.
Mouser Electronics
Authorized Distributor
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ES1B 140-260C ES1B 60-120C