Omron K8AK-TH User Manual

1
Temperature Monitoring Relay
K8AK-TH
Compact and Slim Relay Ideal for
Temperature Alarms and Monitoring
• Excessive temperature increases can be prevented and
abnormal temperatures can be monitored.
• Temperature monitoring in slim design with a width of just
22.5 mm.
• Rotary switches simplifies temperature settings.
• Universal-input support for thermocouple or platinum
resistance thermometer sensor input.
• Change the output relay between normally open and
normally closed operation.
• Alarm status identification with LED indicator.
•Self-holding output.
Ordering Information
K8AK-TH (Temperature Input Models)
* Refer to Setting Ranges on page 3 for the setting ranges.
Note: When ordering, designate the power supply specification. Different Relay models are used for 100 to 240 VAC and 24 VAC/VDC.
Refer to Safety Precautions on page 8.
For the most recent information on models that have been certified for
safety standards, refer to your OMRON website.
Power supply
voltage
Type Output relays Input types Setting units (setting range) Model
100 to 240 VAC Temperature
input
1 relay Thermocouple or platinum
resistance thermometer
Setting unit: 1°C or 1°F (0 to 999°C/°F) K8AK-TH11S 100-240VAC
Thermocouple Setting unit: 10°C/°F* K8AK-TH12S 100-240VAC
24 VAC/DC Thermocouple or platinum
resistance thermometer
Setting unit: 1°C or 1°F (0 to 999°C/°F) K8AK-TH11S 24VAC/DC
Thermocouple Setting unit: 10°C/°F* K8AK-TH12S 24VAC/DC
Buy: www.ValinOnline.com | Phone 844-385-3099 | Email: CustomerService@valin.com

Omron K8AK-TH Specifications

General

Brand	Omron
Model	K8AK-TH
Category	Relays
Language	English

Summary

Ordering Information

K8AK-TH (Temperature Input Models)

Lists ordering details for temperature input models, including power supply, type, output relays, input types, and models.

Specifications

Ratings

Details electrical and operational ratings for K8AK-TH models, including voltage, power, sensor inputs, and output relays.

Characteristics

Outlines key characteristics like measurement accuracy, hysteresis, output relay specs, sampling cycle, and insulation.

Setting Ranges

K8AK-TH11S Centigrade Setting Ranges

Displays centigrade setting ranges for K8AK-TH11S with various sensor inputs.

K8AK-TH11S Fahrenheit Setting Ranges

Displays Fahrenheit setting ranges for K8AK-TH11S with various sensor inputs.

K8AK-TH12S Centigrade Setting Ranges

Displays centigrade setting ranges for K8AK-TH12S with various sensor inputs.

K8AK-TH12S Fahrenheit Setting Ranges

Displays Fahrenheit setting ranges for K8AK-TH12S with various sensor inputs.

Temperature Input Range

Provides temperature input ranges in Celsius and Fahrenheit for TH11S and TH12S models.

Connections

Wiring Diagrams

Illustrates wiring connections for K8AK-TH11S and K8AK-TH12S models, including power, relay, and sensor inputs.

Timing Charts

Depicts timing charts for temperature alarm hysteresis, output relay operation, and indicator status.

Nomenclature

Front Operations

Details the front panel layout, including terminals for power, relay output, external input, and sensor input.

Alarm Setting Rotary Switch

Explains how to use the rotary switches for setting alarm parameters and temperature units.

Operation Method

Function Selection DIP Switch

Describes the function selection DIP switches for K8AK-TH11S and K8AK-TH12S, including input type and output settings.

Functions

SV Protection

Explains the SV Protection function to prevent changes to settings and how to activate/release it.

Dimensions

Track Mounting Products (Sold Separately)

Details dimensions for the K8AK-TH relay and lists compatible DIN Tracks for mounting.

Safety Precautions

Precautions for Safe Use

Provides essential safety guidelines for using the product, highlighting hazardous situations and necessary precautions.

Precautions for Correct Use

Offers advice on operating methods to prevent product failure and malfunction, including proper wiring and settings.

Meaning of Product Safety Symbols

Explains the meaning of various safety symbols used in the manual, such as risk of electric shock or general prohibitions.

Mounting and Removing

Mounting to DIN Track

Details the procedure for mounting the Temperature Monitoring Relay onto a DIN Track.

Removing from the DIN Track

Explains the steps required to safely remove the relay from the DIN Track.