Main features

FM Approved Product High/Low Temperature Limit Controller

The CB100L provides over/under-temperature protection by interrupting or removing the power from the process whenever the temperature goes above or below the set value (high limit or low limit). The output can be slected as an alarm or to interrupt power to the heater circuit.
For safety reasons, the output is retained until reset operation is executed even when the measured value goes back to the normal range. Reset operation can be executed by front key operation, communication, or digital input.
The CB100L measures the time while the measured value goes above/below the set value, and it retains the peak value.

＜FM Approved＞

The FM (Factory Mutual) standard is a standard that originated in the United States to assess the safety and quality of equipment related to fire prevention. It is a certification that assesses the quality, capacity, durability, and other aspects of various equipment to prevent asset losses due to fires.
Compliance with the standard is required when used for systems that prevent excessive heating or fires. CB100L has obtained certification for FM3545: Temperature Limit SW, which is specifically designed for preventing overheating of equipment and other devices.

Closely contacted mounting is available

Closely contacted mounting has been realized to efficiently utilize the panel space.

Communication function (RS-485) is available (Optional)

Up to 31 controllers can be multidrop connected over the RS-485 communication line.

Communication protocol can be selected from RKC standard or MODBUS protocol.

Main specification

• Number of Inputs :1 point
• Input type : ※See the Input Range Code for the input range.

1）Thermocouple : K, J, T, S, R, E, B, N, W5Re/W26Re, U, L, PLII

2）RTD: Pt100 or JPt100

3）DC voltage: 0 to 5V dc, 1 to 5V dc

4）DC current: 0 to 20mA dc, 4 to 20mA dc　※ A 250Ω external resistor is required.

• Sampling time: 0.5 sec.
• Measurement accuracy：±(0.3% of displayed value+1 digit)　※Depends on the input and the range.
• Outputs (OUT1)

1) Relay contact output : 1a contact

<Specification for Optional Functions>

• Alarm outputs (max.2 points): Temperature alarm
• Analog Retransmission Output：PV, DEV, SV * Selectable
• Communication function: Communication interface RS-485

<General Specification>

• Power supply voltage (Rating): 100 to 240Vac/24Vac/24Vdc
• Ambient temperature: 0 to 50°C
• Weight:　Approx. 170g
• Safety standards:　UL UL61010-1

cUL CAN/CSA-22.2 NO.61010-1

CE Marking: Low Voltage Directive (LVD)EN61010-1

EMC Directive　EN61326-1

FM Approved

External dimensions

Models