  5880 Alpine Ave. NW, Comstock Park, MI 49321 USA Tel 616-784-1121, 800-442-2581, Fax 616-784-7775, E-mail sales@heatersplus.com |
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Chromalox® 3101 1/4 DIN High/Low Digital Limit Controller
 UL Listed
• 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 Description 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. Peak Temperature Display Over Setpoint Timer Display Features • Control Limit Output can be programmed for high or low limit control (overtemperature or undertemperature).• 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. • Operating Ambient up to 15 0°F.• Three Year Warranty. Specifications Limit Output Automatic Normally-energized latching relay; relay de-energizes at limit setpoint. Form C contacts, 5 Amps at 120/230 Vac Limit Control Adjustments High/Low Limit Setpoint Sensor Range Setpoint Limit Sensor Range Deadband 0-10 0°FDisplay Offset -100 to +10 0°FAlarm Outputs (2) Relay Form C contacts, 5 Amps at 120/230 Vac (resistive) Sensor Input Field selectable Thermocouple, RTD, Current or VoltageDigital Input Accepts dry-contact closureInput Specifications Range °F Range °C 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 10 0W Pt RTD (a = .00385) -200 to +1000 -128 to +5384-20mA -500 to +5000 (programmable) 0-5 Vdc -500 to +5000 (programmable) 1-5 Vdc -500 to +5000 (programmable) Transmitter Power +24 Vdc Output +24 Vdc ± 20% at 50 mA maximumDigital Communications (Optional) RS-232 Single-drop, isolated RS-422/485 Multi-drop, isolated, field selectable by switch Instrument Power 100-240 Vac, +10%, -15%; 50-60 Hz; 15 VA 12-24 Vac/Vdc, ± 20% (optional); 15 VA Operating Environment 32-150°F (0-65°C) ambient temperature, relative humidity less than 95%, non-condensing
Chromalox® is a registered trademark. | |||||||||||||||||||||||||||||||||
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