Infrared Thermosensor ES1B 1
Infrared Thermosensor
ES1B
Achieve Low-cost Measurements with an
Infrared Thermosensor.
• Non-contact measurement.
• The ES1B has an electromotive output as high as that of a thermo-
couple, 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 pro-
cessing, 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 main-
tained.
Ordering Information
■List of Models
Stock Note: Shaded models are normally stocked.
Application Examples
Appearance and sensing characteristic Specification (temperature range) Model
10 to 70°CES1B 10-70C
60 to 120°CES1B 60-120C
115 to 165°CES1B 115-165C
140 to 260°CES1B 140-260C
2 dia. 20 dia.
2 mm 20 mm 40 mm 60 mm
40 dia. 60 dia.
ES1B
Film
Vertical
heating rolls
Horizontal
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
Note: 1. Either a 12 VDC or 24 VDC power supply is re-
quired for the ES1B.
2. The ES1B cannot be used with OMRON’s E5ZE
Multipoint Temperature Controller. (It can be used
with the E5ZN, E5AR, and E5ER.)
2Infrared Thermosensor ES1B
Specifications
■Ratings/Characteristics
Note: 1. Based on characteristics of K-type thermocouple and radiation rate of 0.9.
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.
Connections
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
Weight Approx. 120 g
Cable Compensating conductor: 3 m
PVC-covered cable with a shield wire resisting 70°C
Temperature Controller
Green, Output +
White, Output −
+
-
Thermocouple
(K)
input terminals
DC power supply
Orange, Power +
Shield, Power −
12/24 VDC
GND
Infrared Thermosensor ES1B 3
Dimensions
Note: All units are in millimeters unless otherwise indicated (inch).
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
Gain and Offset Compensation with Two-point Shift Function
Mounting Lock Nuts (Two) (Provided)
17.8 14.2 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 −
(.70)
(1.75) 3m
(.59)
(.94)
(1.02)
ES1B
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
(such as E5@N or E5@K)
The error caused by
the condition of the
sensing objects or at
the time the Thermosensor is
connected to the
Temperature Controller.
Compensated with the
two-point shift function
(for the upper and
lower sides) of the
Temperature
Controller.
PV display of
Temperature
Controller
Upper limit of
SV of
Temperature
Controller
Lower limit of SV of
Temperature Controller Target value
(Actual temperature of sensing object sample)
Upper limit side
Lower limit side
4Infrared Thermosensor ES1B
■One-point Input Shift
Preparations
•Set a temperature input range that is suitable for the input specifi-
cations of the Infrared Thermosensor.
•Prepare a thermometer to measure the temperature of the sensing
object as shown in figure 1, below.
Configuration for Offsetting the Infrared
Thermosensor Input (Figure 1)
Example for the E5CN
1. Adjust the temperature of the sensing object (C) in the configura-
tion shown in figure 1 to near the set point. We will assume that
the temperature indicated on the thermometer is the actual tem-
perature of the sensing object.
2. Check the temperature of the sensing object (C) and the tempera-
ture indicated on the Controller (A) and set both the upper-limit
and lower-limit temperature input settings to the following value:
Temperature C (sensing object) - Temperature A (Controller)
3. Check the temperature of the sensing object (C) and the tempera-
ture indicated on the Controller (A) again. If they are about the
same, then the offset has been properly set.
Diagram of One-point Input Shift
■Two-point Input Shift
Use a two-point input shift to output more accurate display values.
Preparations
Refer to the preparations for a one-point input shift.
1. The input value is shifted at two points: near room temperature
and near the set point. Check the temperature of the sensing
object (C) and the temperature indicated on the Controller (A) at
both near room temperature and near the set point.
2. Use the following formulas to calculate the upper-limit tempera-
ture input and lower-limit temperature input settings based on the
values checked above.
Diagram of Two-point Input Shift
Lower-limit Temperature Input Setting
Upper-limit Temperature Input Setting
3. Set both the upper-limit and lower-limit temperature input settings
and then check the temperature of the sensing object (C) and the
temperature indicated on the Controller (A) both near room tem-
perature and near the set point.
4. Although we have used two points, near room temperature and
near the set point, accuracy can be increased further by using
another point within the measurement temperature range other
than the set value of room temperature.
−
+
(C) Sensing
object
ES1B Infrared
Thermosensor
Output
(+,−)
Power supply
(+,−)
(A) Temperature
Controller
(B) Thermometer
Power
Supply
insl
10
C
insh
10
C
Lower-limit
temperature input
Upper-limit
temperature input
Temperature indicated
by Controller (A)
Indicated temperature
after offset
(e.g., 120˚C)
Indicated temperature
before offset
(e.g., 110˚C)
0
After offset
Input offset value
(e.g., 10˚C)
Before offset
Temperature
indicated by
thermometer (B)
Near set point
(e.g., 120˚C)
insl
=
YL−Y1 ×{(X2−Y2)−(X1−Y1)}+(X1−Y1)
Y2−Y1
insh
=
YH−Y1 ×{(X2−Y2)−(X1−Y1)}+(X1−Y1)
Y2−Y1
0
Indicated temp. after
offset, X2 (e.g., 110˚C)
Indicated temp. before
offset,Y2 (e.g., 105˚C)
Indicated temp. after
offset, Y1 (e.g., 40˚C)
Indicated temp. after
offset, X1 (e.g., 25˚C)
X1, Room temp.
(e.g., 25˚C)
Lower limit of
set range,
YL (e.g., 0˚C)
Upper limit of
set range, YH
(e.g., 260˚C)
Upper-limit
temperature input
insh
Lower-limit
temperature
input
insl
Temperature indicated
by Controller (A) After offset
Before offset
Temperature
indicated by
thermometer (B)
X2, Near set point
(e.g., 110˚C)
Infrared Thermosensor ES1B 5
Example for the E5CN
In this example, the ES1B is used between 140 and 260°C. Here, the
set point lower limit, YL, would be 0°C and the set point upper limit,
YH, would be 260°C in formulas 1 and 2. The temperatures of the
sensing object are checked next.
The offset values can be calculated as shown below when the Con-
troller display Y1 is 40°C for a room temperature X1 of 25°C and
when the Controller display Y2 is 105°C for a set point temperature
X2 of 110°C
Upper-limit Temperature Input Setting
Lower-limit Temperature Input Setting
insl
=
0−40 ×{(110−105)−(25−40)}+(25−40)
105−40
= −27.3 (°C)
insh
=
260−40 ×{(110−105)−(25−40)}+(25−40)
105−40
= 52.7 (°C)
insl
-27
C
insh
53
C
Lower-limit
temperature input
Upper-limit
temperature input
6Infrared Thermosensor ES1B
Precautions
Precautions for Safe Use
1. Use the ES1B only within the ranges specified by its specifica-
tions and ratings.
2. Be sure to correctly wire the input sensor leads to the proper pos-
itive and negative terminals.
3. Do not use the product in the following locations:
•Locations subject to icing or condensation.
•Locations subject to excessive shocks or vibration.
•Locations subject to dust or corrosive gases.
•Locations subject to extreme temperature changes or direct
sunlight.
•Locations subject to water splashing or oil contact.
Precautions for Correct Use
1. The thermocouple output and power supply are not isolated.
Make sure that unwanted circuit paths are not formed with the
equipment or device that is connected to the product.
2. To prevent inductive noise, wire the product separately from high-
voltage sources and power lines carrying large currents. Also
avoid parallel wiring or shared wiring paths with power lines.
3. Do not allow the filter to become soiled. Use air blow or use a thin
cotton swab to clean the filter.
1. Installation
•Select a place where the emissivity is high for measuring the target.
If necessary, use black spray or black tape.
•Use the supplied locknuts to fix the ES1B securely in place. Tighten
to a torque of 0.5 N·m max.
•When measuring a high-temperature object, use a shield or similar
protection to prevent the temperature of the ES1B from rising.
2. Connection
•Connect to the green output lead wire (+), white output lead wire
(−), orange power supply lead wire (+), and shield power supply
wire (−).
•To measure the temperature difference between two locations, use
two isolated power supplies.
3. Adjustment
•The output impedance of the ES1B is 1 to 4 kΩ. Normally, current
leaking to the ES1B from the burnout detection circuit of the tem-
perature controller will offset the measured temperature in a range
extending from several degrees to several tens of degrees. When
using a controller equipped with an input shift function, use the
input shift function to compensate for this offset error in the vicinity
of the measuring temperature. For details on this compensation,
see Input Shift Method section and the user's manual of the control-
ler being used.
•If the length of a lead wire must be extended, use a K thermocouple
compensating conductor for the output lead wires (+, −), and stan-
dard copper wire for power supply leads (+, −).
•Do not bend lead wires repeatedly.
4. Cleaning
•Do not use paint thinner or the equivalent for cleaning. Use stan-
dard grade alcohol.
If this product should malfunction and cease to provide
correct output, property damage may occur to the
equipment or device that is connected to it. To prevent
this, provide additional safety measures by also
connecting the equipment or devices to a separate alarm
system that will warn operators of temperature increase.
!CAUTION
Infrared Thermosensor ES1B 7
Certain Terms and Conditions of Sale
1. Offer; Acceptance. These terms and conditions (these "Terms") are deemed
part of all catalogs, manuals or other documents, whether electronic or in writ-
ing, relating to the sale of goods or services (collectively, the "Goods") by
Omron Electronics LLC and its subsidiary companies ("Seller"). Seller hereby
objects to any terms or conditions proposed in Buyer's purchase order or other
documents which are inconsistent with, or in addition to, these Terms. Please
contact your Omron representative to confirm any additional terms for sales
from your Omron company.
2. Prices. All prices stated are current, subject to change without notice by
Seller. Buyer agrees to pay the price in effect at time of shipment.
3. Discounts. Cash discounts, if any, will apply only on the net amount of
invoices sent to Buyer after deducting transportation charges, taxes and
duties, and will be allowed only if (i) the invoice is paid according to Seller's
payment terms and (ii) Buyer has no past due amounts owing to Seller.
4. Orders. Seller will accept no order less than $200 net billing.
5. Governmental Approvals. Buyer shall be responsible for, and shall bear all
costs involved in, obtaining any government approvals required for the impor-
tation or sale of the Goods.
6. Taxes. All taxes, duties and other governmental charges (other than general
real property and income taxes), including any interest or penalties thereon,
imposed directly or indirectly on Seller or required to be collected directly or
indirectly by Seller for the manufacture, production, sale, delivery, importation,
consumption or use of the Goods sold hereunder (including customs duties
and sales, excise, use, turnover and license taxes) shall be charged to and
remitted by Buyer to Seller.
7. Financial. If the financial position of Buyer at any time becomes unsatisfactory
to Seller, Seller reserves the right to stop shipments or require satisfactory
security or payment in advance. If Buyer fails to make payment or otherwise
comply with these Terms or any related agreement, Seller may (without liability
and in addition to other remedies) cancel any unshipped portion of Goods sold
hereunder and stop any Goods in transit until Buyer pays all amounts, includ-
ing amounts payable hereunder, whether or not then due, which are owing to it
by Buyer. Buyer shall in any event remain liable for all unpaid accounts.
8. Cancellation; Etc. Orders are not subject to rescheduling or cancellation
unless Buyer indemnifies Seller fully against all costs or expenses arising in
connection therewith.
9. Force Majeure. Seller shall not be liable for any delay or failure in delivery
resulting from causes beyond its control, including earthquakes, fires, floods,
strikes or other labor disputes, shortage of labor or materials, accidents to
machinery, acts of sabotage, riots, delay in or lack of transportation or the
requirements of any government authority.
10. Shipping; Delivery. Unless otherwise expressly agreed in writing by Seller:
a. Shipments shall be by a carrier selected by Seller;
b. Such carrier shall act as the agent of Buyer and delivery to such carrier
shall constitute delivery to Buyer;
c. All sales and shipments of Goods shall be FOB shipping point (unless oth-
erwise stated in writing by Seller), at which point title to and all risk of loss of
the Goods shall pass from Seller to Buyer, provided that Seller shall retain a
security interest in the Goods until the full purchase price is paid by Buyer;
d. Delivery and shipping dates are estimates only.
e. Seller will package Goods as it deems proper for protection against normal
handling and extra charges apply to special conditions.
11. Claims. Any claim by Buyer against Seller for shortage or damage to the
Goods occurring before delivery to the carrier must be presented in writing to
Seller within 30 days of receipt of shipment and include the original transporta-
tion bill signed by the carrier noting that the carrier received the Goods from
Seller in the condition claimed.
12. Warranties. (a) Exclusive Warranty. Seller's exclusive warranty is that th
e
Goods will be free from defects in materials and workmanship for a period o
f
twelve months from the date of sale by Seller (or such other period expresse
d
in writing by Seller). Seller disclaims all other warranties, express or implied
.
(b) Limitations. SELLER MAKES NO WARRANTY OR REPRESENTATION
,
EXPRESS OR IMPLIED, ABOUT NON-INFRINGEMENT, MERCHANTABIL
-
ITY OR FITNESS FOR A PARTICULAR PURPOSE OF THE GOODS
.
BUYER ACKNOWLEDGES THAT IT ALONE HAS DETERMINED THAT TH
E
GOODS WILL SUITABLY MEET THE REQUIREMENTS OF THEI
R
INTENDED USE. Seller further disclaims all warranties and responsibility o
f
any type for claims or expenses based on infringement by the Goods or other
-
wise of any intellectual property right. (c) Buyer Remedy. Seller's sole obliga
-
tion hereunder shall be to replace (in the form originally shipped with Buye
r
responsible for labor charges for removal or replacement thereof) the non
-
complying Good or, at Seller's election, to repay or credit Buyer an amoun
t
equal to the purchase price of the Good; provided that in no event shall Selle
r
be responsible for warranty, repair, indemnity or any other claims or expense
s
regarding the Goods unless Seller's analysis confirms that the Goods wer
e
properly handled, stored, installed and maintained and not subject to contami
-
nation, abuse, misuse or inappropriate modification. Return of any goods b
y
Buyer must be approved in writing by Seller before shipment. Seller shall no
t
be liable for the suitability or unsuitability or the results from the use of Good
s
in combination with any electrical or electronic components, circuits, syste
m
assemblies or any other materials or substances or environments. An
y
advice, recommendations or information given orally or in writing, are not to b
e
construed as an amendment or addition to the above warranty.
13. Damage Limits; Etc. SELLER SHALL NOT BE LIABLE FOR SPECIAL, INDI
-
RECT OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR PRODUC
-
TION OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH TH
E
GOODS, WHETHER SUCH CLAIM IS BASED IN CONTRACT, WARRANT
Y,
NEGLIGENCE OR STRICT LIABILITY. Further, in no event shall liability o
f
Seller exceed the individual price of the Good on which liability is asserted.
14. Indemnities. Buyer shall indemnify and hold harmless Seller, its affiliates an
d
its employees from and against all liabilities, losses, claims, costs an
d
expenses (including attorney's fees and expenses) related to any claim, inves
-
tigation, litigation or proceeding (whether or not Seller is a party) which arise
s
or is alleged to arise from Buyer's acts or omissions under these Terms or i
n
any way with respect to the Goods. Without limiting the foregoing, Buyer (a
t
its own expense) shall indemnify and hold harmless Seller and defend or settl
e
any action brought against Seller to the extent that it is based on a claim tha
t
any Good made to Buyer specifications infringed intellectual property rights o
f
another party.
15. Property; Confidentiality. The intellectual property embodied in the Goods i
s
the exclusive property of Seller and its affiliates and Buyer shall not attempt t
o
duplicate it in any way without the written permission of Seller. Notwithstand
-
ing any charges to Buyer for engineering or tooling, all engineering and toolin
g
shall remain the exclusive property of Seller. All information and material
s
supplied by Seller to Buyer relating to the Goods are confidential and propri
-
etary, and Buyer shall limit distribution thereof to its trusted employees an
d
strictly prevent disclosure to any third party.
16. Miscellaneous. (a) Waiver. No failure or delay by Seller in exercising any righ
t
and no course of dealing between Buyer and Seller shall operate as a waive
r
of rights by Seller. (b) Assignment. Buyer may not assign its rights hereunde
r
without Seller's written consent. (c) Amendment. These Terms constitute th
e
entire agreement between Buyer and Seller relating to the Goods, and no pro
-
vision may be changed or waived unless in writing signed by the parties.
(d) Severability. If any provision hereof is rendered ineffective or invalid, suc
h
provision shall not invalidate any other provision. (e) Setoff. Buyer shall hav
e
no right to set off any amounts against the amount owing in respect of thi
s
invoice. (f) As used herein, "including" means "including without limitation".
Certain Precautions on Specification and Use
1. Suitability of Use. Seller shall not be responsible for conformity with any stan-
dards, codes or regulations which apply to the combination of the Good in the
Buyer's application or use of the Good. At Buyer's request, Seller will provide
applicable third party certification documents identifying ratings and limitations
of use which apply to the Good. This information by itself is not sufficient for a
complete determination of the suitability of the Good in combination with the
end product, machine, system, or other application or use. The following are
some examples of applications for which particular attention must be given.
This is not intended to be an exhaustive list of all possible uses of this Good,
nor is it intended to imply that the uses listed may be suitable for this Good:
(i) Outdoor use, uses involving potential chemical contamination or electrical
interference, or conditions or uses not described in this document.
(ii) Energy control systems, combustion systems, railroad systems, aviation
systems, medical equipment, amusement machines, vehicles, safety
equipment, and installations subject to separate industry or government
regulations.
(iii) Systems, machines and equipment that could present a risk to life or
property. Please know and observe all prohibitions of use applicable to
this Good.
NEVER USE THE PRODUCT FOR AN APPLICATION INVOLVING SERIOUS
RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE SYSTEM
AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT
THE SELLER'S PRODUCT IS PROPERLY RATED AND INSTALLED FOR
THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.
2. Programmable Products. Seller shall not be responsible for the user's pro
gramming of a programmable Good, or any consequence thereof.
3. Performance Data. Performance data given in this catalog is provided as
a
guide for the user in determining suitability and does not constitute a warrant
y
It may represent the result of Seller's test conditions, and the user must corr
e
late it to actual application requirements. Actual performance is subject to th
e
Seller's Warranty and Limitations of Liability.
4. Change in Specifications. Product specifications and accessories may b
e
changed at any time based on improvements and other reasons. It is our pra
c
tice to change part numbers when published ratings or features are change
d
or when significant construction changes are made. However, some specific
a
tions of the Good may be changed without any notice. When in doubt, speci
a
part numbers may be assigned to fix or establish key specifications for you
application. Please consult with your Seller's representative at any time to con
firm actual specifications of purchased Good.
5. Errors and Omissions. The information in this catalog has been carefull
y
checked and is believed to be accurate; however, no responsibility is assume
d
for clerical, typographical or proofreading errors, or omissions.
8Infrared Thermosensor ES1B
OMRON ON-LINE
Global - http://www.omron.com
USA - http://www.omron.com/oei
Canada - http://www.omron.ca
Cat. No. H127-E3-01 Printed in USA
OMRON CANADA, INC.
885 Milner Avenue
Toronto, Ontario M1B 5V8
416-286-6465
OMRON ELECTRONICS LLC
One Commerce Drive
Schaumburg, IL 60173
847-843-7900
For US technical support or other inquiries:
800-556-6766
8/04 Specifications subject to change without notice
Complete “Terms and Conditions of Sale” for product purchase and use are on Omron’s website
at www.omron.com/oei – under the “About Us” tab, in the Legal Matters section.
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.
