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K8AK-TH

8

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

Meaning of Product Safety Symbols

Electrical shock may cause minor injury.
Do not touch terminals while electricity is being supplied.

There is a risk of minor electrical shock, fire, or device failure. 
Do not allow any pieces of metal, conductors, or cutting chips 
that occur during the installation process to enter the product.

Explosions may cause minor injuries. Do not use the product  
in locations with inflammable or explosive gases.

There is a risk of minor electrical shock, fire, or device failure. 
Do not disassemble, modify, repair, or touch the inside of the 
product.

Loose screws may cause fires. Tighten terminal screws to the 
specified torque of 0.49 to 0.59 N·m.

Use of excessive torque may damage the terminal screws. 
Tighten terminal screws to the specified torque of 0.49 to 
0.59 N·m.

If the setting does not match the element to be monitored, the 
product may behave unexpectedly and damage the machine 
or cause accidents. Set the Temperature Monitoring Relay as 
described below.

Adjust each set value on the Temperature Monitoring Relay 
correctly for the element that is to be monitored.

Turn OFF the power to the Temperature Monitoring 
Relay before you change the switch settings on the side 
panel. The switch settings made on the side panel take 
effect when the power is turned ON.

If the Temperature Monitoring Relay fails, monitoring and 
alarm outputs may fail to operate. This may result in physical 
damage to the facilities, equipment, or other devices that are 
connected to it. To reduce this risk, inspect the product 
regularly. To make the product fail-safe, take alternative safety 
measures, such as the installation of monitoring devices on a 
separate circuit.

Use of the product beyond its life may result in contact welding 
or burning. Make sure to consider the actual operating 
conditions and use the product within its rated load and 
electrical life count. The life of the output relay varies 
significantly with the switching capacity and switching 
conditions.

 CAUTION

Indicates a potentially hazardous situation 
which, if not avoided, may result in minor or 
moderate injury or in property damage.

Precautions for Safe 

Use

Supplementary comments on what to do or 
avoid doing, to use the product safely.

Precautions for 

Correct Use

Supplementary comments on what to do or 
avoid doing, to prevent failure to operate, 
malfunction, or undesirable effects on 
product performance.

Used to warn of the risk of electric shock under 
specific conditions.

Used for general prohibitions for which there is no 
specific symbol.

Used to indicate prohibition when there is a risk of 
minor injury from electrical shock or other source if 
the product is disassembled.

Used for general mandatory action precautions for 
which there is no specified symbol.

 CAUTION

Buy: www.ValinOnline.com | Phone 844-385-3099 | Email: [email protected]

Summary of Contents for K8AK-TH

Page 1: ...or 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 r...

Page 2: ...30 VDC Maximum switching capacity 1 250 VA 150 W Minimum load 5 VDC 10 mA reference values Mechanical life 10 million operations min Electrical life 5 A at 250 VAC or 30 VDC 50 000 operations 3 A at...

Page 3: ...setting increment 10 C Input K J T E B R S PLII Setting temperature range 3 200 3 100 3 000 2 900 2 800 2 700 2 600 2 500 2 400 2 300 2 200 2 100 2 000 1 900 1 800 1 700 1 600 1 500 1 400 1 300 1 200...

Page 4: ...ther error Power supply Relay output latched 11 to 14 LATCH_RST or external inputs 4 to 5 Temperature alarm or other error Power supply PWR indicator SV Protect Mode Power supply ALM indicator Tempera...

Page 5: ...e than one million times If you press and hold the LATCH_RST button for 5 seconds or longer the SV Protect Mode will go into effect When SV Protect Mode is enabled the PWR indicator flashes To disable...

Page 6: ...ult All OFF SW8 Not used R_SW3 K8AK TH12S R_SW2 R_SW1 SW 1 2 3 4 K 5 6 7 J T E B R S PLII Input type ON OFF 100 C F units 0 to 9 10 C F units 0 to 9 Upper limit alarm Lower limit alarm With latching W...

Page 7: ...ated The protection function can be released 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 fo...

Page 8: ...he side panel take effect when the power is turned ON If the Temperature Monitoring Relay fails monitoring and alarm outputs may fail to operate This may result in physical damage to the facilities eq...

Page 9: ...ring Relay to stabilize Take this time into account when you design the control panel 14 Allow at least 30 minutes for the product to warm up During this time the temperature measurements will be inco...

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