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W A T L O W

Temperature and Power Controllers catalog - 7347 Auto-Tuning PIDControllers

SD31

The SERIES SD family of PIDtemperature controllers utilizes today’s advanced micro-electronics technology to provide the value, benefits and accuracy you’ve come to expect from Watlow. The SERIES SD31 offers improved accuracy of 0.1 percent of span as well as a faster sampling rate of 6.5Hz in a Features and Benefits Simplified navigation •Allows users to navigate forwardsor backwards from any menu •Thermal sensing technologyimproves accuracy by a minimum of 50 percent INFOSENSE™sensor technology Watlow’s patented User DefinedMenu System •Allows users to define, save, andaccess their most important Menu settings •UL
1 Agency approvals �
32 DIN package.The SERIES SD31 controller deliversmany flexible, user-friendly options. Easily choose factory or user defaults and display either process or set point values. Process inputs are scalable and invertible from the front panel. Other features include Variable Burst Fire and flexible Outputs, that users can select as On-Off, Heat/Cool or as Process or Deviation Alarms. Users can also select between 11 different Thermo- couples, a 100 Ohm RTD, a 0 to 20mA or 0 to 10V process input - all from the front panel - which eliminates the need for dip-switches.With optional EIA-485 com-munications, you can configure, monitor and data log with suchoptional software products like WATVIEW.
Single-Loop Auto-Tuning PID Output 1 ControlInpu t Control or Alarm Output2 Control, Alarm or Communications “Save and Restore” feature Variable burst fire •Allows the user to save individualor factory settings Accuracy •Prolongs heater life •Reduces replacement costs •Calibration accuracy and sensorconformity: ±0.1 percent of span, ±1°C @ the calibrated ambient temperature and rated line voltage •Calibration ambient temperature =25°C ±3°C (77°F ±5°F) •Accuracy span: 540°C (1000°F)minimum•Temperature stability: ±0.1°C/°C(±0.2°F/°F) rise in ambientmaximum Specifications Line Voltage/Power •100 to 240V Å (ac), +10/-15percent; (85-264V Å [ac]) 50/60Hz,±5 percent•24V ı (ac/dc), +10/-15 percent;50/60Hz, ±5 percent•10VA maximum powerconsumption•Data retention upon power failurevia nonvolatile memory Agency Approvals •UL
® ® Environment 3121, C-UL ‚ CSA, CE,IP65/NEMA 4X•NSF for Type J, K, T and Ethermocouples •-18 to 65°C (0 to 149°F) operatingtemperature•-40 to 85°C (-40 to 185°F) storagetemperature•0 to 90 percent RH, non-condensing
® ‚ C-UL
® , CE IP65/NEMA 4X,plus CSA and NSF
® and C-UL ® are registered trademarks ofUnderwriter’s Laboratories, Inc. Modbus™ is a registered trademark of SchneiderAutomation, Inc.UL 27