Athena Technologies OTC25 N Wiring, Operation, Athena Series OTC25 Digital Temperature Controller

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Wiring

IMPORTANT: All electrical wiring connections should be made only by trained personnel using Class 1 wiring, and in strict accordance with the National Electrical Code and local regula- tions. Both of the incoming power lines should be fused with 2AG, 0.5 A maximum rated fuses.

The OTC25 controller has built-in circuitry to reduce the effects of electrical noise (RFI) from various sources;

however, power and signal wires should always be kept separate. We recommend separating wires into one bundle for power (from line power and output) and one bundle for signal (from thermocouple).

The OTC25 power supply accepts 100 through 250 Vac and 120 through 250 Vdc line power without any switch settings or polarity considerations.

COM.

N.O.

COM.

N.O.

L2

L1

OUTPUT #2

OUTPUT #1

(-) T/C

(+)

Figure 3. Wiring Connections

Operation

Athena Series OTC25 Digital

Temperature Controller

Just a few easy steps are required before your OTC25 can be placed into service. After completing the mounting and wiring procedures as previously instructed, set each controller parameter using the simple front-panel keys as instructed.

Power On

When power is first applied to the OTC25, all segments

of the LED display, as well as the discrete indicators, will be momentarily illuminated while the instrument goes through a series of diagnostic checks to verify proper operation of the unit.

A software version will then be displayed, e.g., . The last two digits of this code indicate the software revision supplied with your controller. Please provide this revision number when contacting us regarding your unit. This display is followed by a mnemonic code representing the OTC25 model type.

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Contents Series OTC25 N/L/P Introduction Features SafetyNema 4X Front Bezel, Splash-Proof and Resistant to Dust Approvals UR, cUR, CEContents Mounting InstallationPre-Installation Instructions Athena Series OTC25 Digital Temperature Controller WiringPower On When power is first applied to the OTC25, all segmentsParameter Descriptions Default DisplayControl Hysteresis Display OffsetParameter Configuration OTC25 N On/Off Temperature Controller Normal OperationParameter Key momentarily to switch the display to Limit Deviation Band AlarmOTC25 L Limit Controller Normal Operation Display UnitsLimit Setpoint Automatic Startup ResetParameter Key momentarily to switch the display to OTC25 P PID Temperature Controller Normal OperationOTC25 P Operation Output 2 Configuration ResetProportional Band RateCalibration Calibration ProcedureCalibration Repeat for the upper reference point Calibration Error CodesBUYER’S Remedy is Limited to Either i Repair or Warranty/Repair InformationTwo-Year Limited Warranty Unit Repairs Control Characteristics Technical SpecificationsOperating Limits Sensor RangeOutput Source Power to Heater Input Source Temperature SensorPage OTC25-NOTC25-POTC25-L Page OTC25-NOTC25-POTC25-L Page For technical assistance, call toll free