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PDF K8AB-TH Data sheet ( Hoja de datos )

Número de pieza K8AB-TH
Descripción Temperature Monitoring Relay
Fabricantes Omron 
Logotipo Omron Logotipo



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Temperature Monitoring Relay
K8AB-TH
www.DataSheet4U.com
CSM_K8AB-TH_DS_E_2_1
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.
• Simple function settings using DIP switch.
• Universal-input support for thermocouple or Pt100 sensor input.
• Selectable output relay: Non-fail safe/fail safe.
• Alarm status identification with LED indicator.
Refer to Safety Precautions for All
Temperature Controllers.
Features
This Temperature Monitoring Relay was designed specially for
monitoring abnormal temperatures to prevent excessive
temperature increase and to protect equipment.
A relay capacity of 3 A at 250 VAC (resistive load) is provided in a
slim body only 22.5 mm wide.
An output latch function is also supported.
Settings can be made and functions can be selected using the DIP
switch.
Reduce the number of models by using universal-input support for
thermocouple or Pt100 sensor input.
Selecting Functions and Modes
The following settings are provided: alarm mode (upper limit/lower
limit), enable/disable latch, °C/°F, relay output non-fail safe/fail safe,
setting protection.
Terminal Wiring with Ferrules
Wire with 2 × 2.5 mm2 solid wire or 2 × 1.5 mm2 wiring ferrules.
Third-party Certification of CE Mark Compliance, Certified UL
Standard Compliance, and Certified TÜV and SUD Standard
Compliance
Model Number Structure
Model Number Legend
K8AB-TH1@@
1 2 34
1. Basic Model
K8AB: Measuring and Monitoring Relay
2. Function
TH1: Temperature Monitoring Relay
Ordering Information
3. Setting Range
1: Low-temperature range (0 to 399°C: setting in increments of
1°C)
2: High-temperature range (0 to 1700°C max.: setting in
increments of 10°C)
4. Output Form
S: One SPDT relay output
List of Models
Size
Supply voltage
Type
K8AB-TH
100 to 240 VAC Temperature
22.5 × 90 × 100 mm
input
24 VAC/VDC
Number of
outputs
1 (relay)
Input type
Setting unit (setting range)
Thermocouple/Pt100 Unit: 1°C/°F (0 to 399°C/°F)
Thermocouple
Unit: 10°C/°F (See note 1.)
Thermocouple/Pt100 Unit: 1°C/°F (0 to 399°C/°F)
Thermocouple
Unit: 10°C/°F (See note 1.)
Model
K8AB-TH11S
K8AB-TH12S
K8AB-TH11S
K8AB-TH12S
Note: 1. Refer to page 3 for setting ranges.
2. Specify the power supply voltage when ordering. Different models must be ordered for 100 to 240 VAC and 24 VAC/DC.
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K8AB-TH pdf
Nomenclature
K8AB-TH
www.DataSheet4U.com
Front Operations
Power indicator (PWR): Green
Alarm indicator (ALM): Red
Output latch
reset button
TH11
Alarm setting
rotary switch
Indicators
Item
Power indicator
(PWR)
Alarm indicator
(ALM)
Usage
Lit: Power supply is ON.
Flashing: SV protected.
Lit: Relay is operating.
Flashing: Sensor is disconnected or there is a
Temperature Monitoring Relay error. (See note 1.).
Operation Switches
Item
Output latch reset
button
Alarm setting
rotary switch
Usage
The output latch can be reset by pressing this button.
(Enabled when latch is enabled.) (See note 2.)
Set each digit of the alarm set temperature.
K8AB-TH11S: x1, x10, x100 digits
K8AB-TH12S: x10, x100, x1000 digits
Note: 1. The ALM indicator will flash and the relay outputs will turn ON if any
of the following conditions occur.
(1) The temperature input value exceeds the specified range.
(2) The temperature set value exceeds the specified range.
(3) There is an error in the internal circuits.
2. The SV protection will function when the latch reset button is pressed
for at least 5 s.
The power indicator will flash when the SV is protected. To release
the protection, press the latch reset button again for at least 5 s.
Alarm Setting Rotary Switch
78
Turn the arrow in the direction of the number to set.
Function Setting DIP Switch
SW1
SW2
SW3
SW4
SW5
SW6
SW7
SW8
This DIP switch is provided on the side
of the Temperature Monitoring Relay.
(All switches are OFF for the default
settings.)
OFF
ON
SW1
SW2
SW3
SW4
SW5
SW6
SW7
SW8
Function
Alarm mode
OFF
Upper-limit alarm
ON Lower-limit alarm
Output latch selector
OFF
Enabled
ON Disabled
Operation selector: Non-fail safe/ OFF
fail safe
ON
Non-fail safe
Fail safe
Temperature unit
OFF
°C
ON °F
Input type selector
Refer to the following table.
Not used.
---
Default
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
K8AB-TH11S
SW5
SW6
SW7
K
OFF
OFF
OFF
J
OFF
OFF
ON
T
OFF
ON
OFF
Sensor type
E Pt100*
OFF
ON
ON OFF
ON OFF
Pt100*
ON
OFF
ON
Pt100*
ON
ON
OFF
Pt100*
ON
ON
ON
* The type will be Pt100 for any of these settings.
K8AB-TH12S
SW5
SW6
SW7
K
OFF
OFF
OFF
J
OFF
OFF
ON
T
OFF
ON
OFF
Sensor type
EB
OFF
ON
ON OFF
ON OFF
R
ON
OFF
ON
S
ON
ON
OFF
PLII
ON
ON
ON
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