• One High/Low Limit Control Output

• Two Independent Alarm Outputs

• Analog Process Output for Retransmit of Process Variable

• Peak Temperature Display

• Universal Sensor Inputs

• NEMA 4X Front Panel

• Switching Power Supply 100-240 Vac or 12-24 Vac/Vdc

• Digital Communications with ChromaSoft™ Compatibility

The 3101 is a compact, fully programmable high or low limit controller. It is a UL Listed Overtemperature (or Undertemperature) controller, and FM approved as a limit controller. With user programmable inputs, outputs and high/low limit features, it is flexible to most any limit control application, and can be easily reconfigured as needed.

• Two Independent Alarm Outputs, Form C Relays, can be used to warn of impending out-of-limit process conditions, providing protection for equipment and personnel.

• Universal Sensor Input accepts thermocouple, RTD or analog signals.

• 24 Vdc Output for loop power.

• Digital Input available for remote alarm reset.

• Analog Process Output option for retrans-mission of process variable to a remote recorder, computer or other device.

• Isolated Serial Digital Communications (RS-232/422/485) can be used to address from 1 up to 255 Chromalox controllers.

• Security Code Protection prevents unauthorized access to programmable control parameter.

• Three Year Warranty.

Automatic

Normally-energized latching relay; relay de-energizes at limit setpoint. Form C contacts, 5 Amps at 120/230 Vac

High/Low Limit Setpoint     Sensor Range

Setpoint Limit     Sensor Range

Relay     Form C contacts, 5 Amps at 120/230 Vac (resistive)

J TC -100 to +1400 -73 to +760

K TC -300 to +2400 -184 to +1316

T TC -350 to +750 -212 to +399

E TC -100 to +1100 -73 to +593

R TC 0-3200 -18 to +1760

S TC 0-3200 -18 to +1760

B TC 50-3300 10 to +1816

4-20mA -500 to +5000 (programmable)

0-5 Vdc -500 to +5000 (programmable)

1-5 Vdc -500 to +5000 (programmable)

RS-232     Single-drop, isolated

RS-422/485     Multi-drop, isolated, field selectable by switch