The Chromalox 2104 1/4 DIN Temperature and Process Controller is a low cost, high performance single loop controller that can be used for temperature, flow, pressure and level control applications. With universal sensor inputs and front panel operator setup, one 2104 controller can be easily field configured for a wide variety of applications, and simply reconfigured as application needs change. This makes it an exceptional choice for OEMs and distributors with multiple control needs, manufacturing facilities, testing facilities and testing applications.

• Universal Sensor Input accepts thermocouple, RTD or analog signals, provides 24 Vdc Output for loop power.

• Self-Tuning with Fuzzy Logic optimizes PID control and minimizes overshoot.

• Digital Input for remote switching of one of the following:

• PID1/PID2

• Remote/Local Setpoint

• Main/Auxiliary Setpoint

• Ramp/Soak Operation

• Manual/Auto Control

• Alarm Reset for Latching Alarms

• 16 Interval Ramp/Soak Program with guaranteed soak, 3 event outputs and looping.

• Programmable Analog Output and Remote Setpoint Input

• AUX Pushbutton and LED for front panel switching of:

• PID1/PID2

• Remote/Local Setpoint

• Main/Auxiliary Setpoint

• Ramp/Soak Operation

• Manual/Auto Control

• Security Code Protection prevents unauthorized access.

• Setpoint Ramp Rate provides Soft Start at powerup, or on setpoint changes, to prevent uneven heating and overshoot.

• Control Loop Protection provides process protection from:

• Open Sensor

• Shorted Sensor

• Sensor Reversed

• Control Output Open or Shorted

• Power Control Device Open or Shorted

• Load Power Missing and Self Diagnostics.

Setpoint Limits ................................. Sensor Range

Deadband ......................................... 1-100°F

Proportional Band ............................ Sensor Range

Manual Reset .................................... -99.9 to +99.9

Automatic Reset ............................... 0-99.99 repeats/min.

Rate .................................................. 0-500 sec.

Output Cycle Time ............................ 0.0-60.0 sec.

Output Limit ..................................... 0-100%

Open Sensor/Out of Range Output ... 0-100%

Display Offset ................................... -100 to +100°F

Cooling Medium ............................... Air, Water or Oil

Alarm Types ..................................... Absolute: High, Low and High/Low

......................................................... Tracking: + Deviation, - Deviation and +/- Deviation

Relay Action ..................................... Latching or Non-Latching, Energized or De-Energized

Alarm Deadband ............................... Adjustable, 0-100°F

Relay ................................................ Relay–Form A contacts, 1 Amp at 120/230 Vac (resistive load)

Solid State Relay Drive ..................... 24 Vdc nominal at 40 mA

Triac ................................................. 1 Amp continuous, 10 Amp in-rush, at 120 or 230 Vac

J T/C ................................................. -100 to +1400 -73 to +760

K T/C ................................................ -300 to +2400 -184 to +1316

T T/C ................................................. -350 to +750 -212 to +399

E T/C ................................................. -100 to +1100 -73 to +593

R T/C ................................................ 0-3200 -18 to +1760

S T/C ................................................ 0-3200 -18 to +1760

B T/C ................................................ 50-3300 10-1816

RTD (0.1° res.) .................................. -99.9 to +899.9 -73.3 to +482.2

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

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

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

Loops ............................................... 1 loop, 0-255 times or continuous

Event Outputs ................................... Up to 3

Guaranteed Soak Differential ............ Off, 1°F to sensor span

Time Units ........................................ Seconds, Minutes, Hours (1 second to 99.99 hours/segment)

......................................................... Active Setpoint Output #2 Command

......................................................... Selectable via DIP switch

Range ............................................... Programmable for retransmission of Process Variable and Active Setpoint

RS-232 Single drop, isolated

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

Baud Rates ....................................... 1200, 2400, 4800, 9600, 19200

Protocols ASCII Line, Computer Interface