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Model Temperature Controller

3101 Microprocessor-based 1/4 DIN Programmable High/Low Limit Controller.

Universal Sensor Input accepts Thermocouple, RTD, Current or Voltage Inputs.

One Digital Input and One Alarm Output.

Figure 1.1 Model Identiﬁ cation

Model Identiﬁ cation

Before installation, please identify your controller model number. The

model number is written on the tag on the side of the housing.

Code Limit Output #1

1 Relay—Form C Contact, 5A @ 120 or 230 Vac

Code Alarm #1 Output

Code Analog Process Output Option

0 None

1 Field selectable 4-20mA or 1-5 Vdc

Code Digital Comm. and Alarm #2 Options

0 None

1 RS422/485 Digital Communications and

Alarm #2 Relay—Form C contact, 5A @

120 or 230 Vac

2 RS232 Digital Communications and

Alarm #2 Relay—Form C Contact, 5A @

120 or 230 Vac

Code Power Supply

0 100 - 230 Vac

3101 - 1 1 1 2 0 Typical Model Number

Chromalox 3101 User Manual

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