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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.
Refer to Safety Precautions on page 8.
Ordering Information
K8AK-TH (Temperature Input Models)
Power supply
Type
voltage
100 to 240 VAC Temperature
input
24 VAC/DC
* 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.
Buy: www.ValinOnline.com | Phone 844-385-3099 | Email: CustomerService@valin.com
Output relays
Input types
1 relay
Thermocouple or platinum
resistance thermometer
Thermocouple
Thermocouple or platinum
resistance thermometer
Thermocouple
For the most recent information on models that have been certified for
safety standards, refer to your OMRON website.
Setting units (setting range)
Setting unit: 1°C or 1°F (0 to 999°C/°F) K8AK-TH11S 100-240VAC
Setting unit: 10°C/°F*
Setting unit: 1°C or 1°F (0 to 999°C/°F) K8AK-TH11S 24VAC/DC
Setting unit: 10°C/°F*
Model
K8AK-TH12S 100-240VAC
K8AK-TH12S 24VAC/DC
1
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Related Manuals for Omron K8AK-TH
Summary of Contents for Omron K8AK-TH
- Page 1 • Alarm status identification with LED indicator. • Self-holding output. 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. Ordering Information K8AK-TH (Temperature Input Models) Power supply Type...
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Page 2: Specifications Ratings
K8AK-TH Specifications Ratings Item Power supply voltage 100 to 240 VAC 50/60 Hz 24 VAC 50/60 Hz or 24 VDC Allowable voltage range 85% to 110% of power supply voltage Power consumption 5 VA max. 2 W max. (24 VDC), 4 VA max. (24 VAC) -
Page 3: Setting Ranges
K8AK-TH Setting Ranges ●K8AK-TH11S Centigrade Input Pt100 Pt1000 1,000 Setting tempera- ture range Minimum setting increment 1°C Fahrenheit Input Pt100 Pt1000 1,000 Å@ Å@ Å@ Å@ Å@ Setting temperature range Minimum setting increment 1°F ●K8AK-TH12S Centigrade Input PLII 1,800 1,800... -
Page 4: Connections Wiring Diagrams
K8AK-TH Connections Wiring Diagrams K8AK-TH11S K8AK-TH12S Power supply Power supply voltage* voltage* Not used. Not used. Power supply Power supply Relay output Relay output 14 11 12 14 11 12 *1 The input power supply depends on the model: 100 to 240 VAC or 24 VAC/VDC (no... - Page 5 K8AK-TH Nomenclature Front Operations ●Error (ALM indicator: Flashing) One of the following items 1 to 3 has occurred. Power supply 1. The sensor circuit is disconnected or the temperature setting is out of the specified range. Relay output 2. The temperature setting is out of the specified range.
- Page 6 K8AK-TH Operation Method Function Selection DIP Switch Settings K8AK-TH11S 1,000°C/°F units (0 to 3) 100°C/°F units (0 to 9) R_SW3 K8AK-TH12S R_SW3 * A temperature setting error R_SW2 10°C/°F units (0 to 9) occurs if this switch is set to a value from 4 to 9.
- Page 7 K8AK-TH Functions ●SV Protection This function protects (i.e., prohibits changing) the alarm setting, operating method, and modes for the Temperature Monitoring Relay that have been set on the rotary switches and DIP switch. The protection function is activated by pressing the output latch reset button on the Temperature Monitoring Relay for at least 5 s or by turning ON the input to the external input terminal for at least 5 s.
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Page 8: Safety Precautions
K8AK-TH Safety Precautions Be sure to read the precautions for all models in the website at the following URL: http://www.ia.omron.com/. Warning Indications CAUTION Indicates a potentially hazardous situation CAUTION which, if not avoided, may result in minor or Electrical shock may cause minor injury. -
Page 9: Precautions For Safe Use
K8AK-TH Precautions for Safe Use Precautions for Correct Use 1. Do not use or store the product in the following locations. Observe the following operating • Locations subject to water or oil methods to prevent failure and • Locations subject to direct radiant heat from heating equipment malfunction.