For technical assistance, call toll free

1-800-782-6776 (in the U.S.) or 610-828- 2490 (from anywhere in the world), or e-mail techsupport@athenacontrols.com.

Athena Controls, Inc.

5145 Campus Drive

Plymouth Meeting, PA 19462 USA

Toll-free: 800.782.6776

Tel: 610.828.2490

Fax: 610.828.7084

techsupport@athenacontrols.com

athenacontrols.com

900M015U00 REV “B” - 082504

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Contents

Series OTC25 N/L/P Features Safety IntroductionNema 4X Front Bezel, Splash-Proof and Resistant to Dust Approvals UR, cUR, CE Contents Installation Pre-Installation InstructionsMounting Wiring Athena Series OTC25 Digital Temperature ControllerPower On When power is first applied to the OTC25, all segments Default Display Parameter DescriptionsControl Hysteresis Display Offset OTC25 N On/Off Temperature Controller Normal Operation Parameter Configuration Deviation Band Alarm Parameter Key momentarily to switch the display to LimitOTC25 L Limit Controller Normal Operation Display Units Automatic Startup Reset Limit Setpoint OTC25 P PID Temperature Controller Normal Operation Parameter Key momentarily to switch the display to OTC25 P Operation Reset Output 2 ConfigurationProportional Band Rate Calibration Procedure CalibrationCalibration Calibration Error Codes Repeat for the upper reference point Warranty/Repair Information Two-Year Limited WarrantyBUYER’S Remedy is Limited to Either i Repair or Unit Repairs Technical Specifications Control CharacteristicsOperating Limits Sensor Range Input Source Temperature Sensor Output Source Power to HeaterPage OTC25-NOTC25-POTC25-L Page OTC25-NOTC25-POTC25-L Page For technical assistance, call toll free