aci IMMERSION SERIES Installation & Operation Instructions

Contents

aci IMMERSION SERIES Installation & Operation Instructions Manual pdf 3 page image

WARRANTYThe ACI Immersion Series temperature sensors are covered by ACI’s Five (5) Year Limited Warranty, which islocated in the front of ACI’S SENSORS & TRANSMITTERS CATALOG or can be found on ACI’s website:www.workaci.com.TROUBLESHOOTINGPROBLEMSensor reading is incorrectSensor reads infinity/very high resistanceSensor reads low resistanceErratic readingsSOLUTION(S)• Verify sensor wiring to controller is not damaged and has continuity.• Verify sensor or wires are not shorted together.• Verify controller is setup for correct sensor curve.• Disconnect wires from sensor terminal block, tighten terminal blockscrews down, and take a resistance (ohm) reading with a multimeter.• Compare the resistance reading to the Temperature Vs ResistanceCurves online: http://www.workaci.com/content/thermistor-curves-0• Verify proper mounting location to confirm no external factors areaffecting reading.• Sensor or wires are open.• Sensor or wires are shorted together.• Condensation on PCB board• Bad wire connections.Automation Components, Inc.2305 Pleasant View Road | Middleton, WI 53562Phone: 1-888-967-5224 | Website: workaci.comPage 3Version: 1.0I0000811WIRING INSTRUCTIONSOpen the cover of the enclosure. ACI recommends 16 to 26 AWG twisted pair wires or shielded cable forall sensors. Signal wiring must be run separate from low and high voltage wires (24/120/230VAC). All ACIthermistors and RTD temperature sensors are both non-polarity and non-position sensitive. Allthermistor type units are supplied with (2) flying lead wires, and all RTD’s are supplied with (2) or (3)flying lead wires – see FIGURE 6 (below). The number of wires needed depends on the application.Connect thermistor/RTD wire leads to controller analog input wires using wire nuts, terminal blocks, orcrimp style connectors. All wiring must comply with all local and National Electric Codes. After wiring,attach the cover to the enclosure.Note: When using a shielded cable, be sure to connect only (1) end of the shield to ground at the controller.Connecting both ends of the shield to ground may cause a ground loop. When removing the shield fromthe sensor end, make sure to properly trim the shield to prevent any chance of shorting.Note: If the controller requires a (2) wire input for a RTD, connect the (2) common wires(same color)together. If the controller requires (3) wires, use (3) individual wires.THERMISTOR ORRTD 2WIREWIRE NUTRTD 3WIRESAME COLOR WIRESWIRE NUTWIRING FROM CONTROLLERANALOG INPUTWIRING FROM CONTROLLERANALOG INPUT3-WIRE RTD WIRING2-WIRE THERMISTOR or RTD WIRINGFIGURE 7: TEMPERATURE WIRING

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