Is the input free of noise? | Omega RD260A guide

¥Errors exceed specified limits

¥Measuring value indications fluctuate

¥Pen/printer carriage goes off-scale at 0% or 100%.

Does input signal satisfy the specifications?

YES

Is the input free of noise?

YES

Are measures applied

to prevent ambient temperature changes?

YES

Are input wires correctly connected to the terminals?

YES

Is the recorder parallel connected with other instruments?

YES

NO

NO

NO

NO

NO

Correct the input according to specifications

¥Separate the input signal wires from the noise source.

¥Ground the recorder.

¥Ground the measuring object.

¥Insulate TC from the measuring object.

¥Use shielded cables for input signals.

¥Correctly attach the terminal cover.

¥Check the wind from appliances such as cooling fan.

¥Decrease the temperature change around the input terminals.

¥Check the wiring connection being correct. (See subsection 2.2.3.)

¥Attach the terminal block correctly.

¥Tighten the terminal screws again.

¥Insulate the RTD from grounding wire.

¥Replace the TC if its wire is broken.

¥Halt the burnout function of other instruments.

¥Make one-point grounding together with other instruments.

¥Cancel the parallel connection (for example, use a double element TC).

Is pen position/dot-printing		NO
position correctly adjusted?			Readjust the pen position/dot-printing position. See subsection 4.8.6, 4.8.7.


	YES
	YES

Contact OMEGA Engineering.

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Omega RD260A instruction manual Is the input free of noise?

Contents

User’s Guide Servicing North America Introduction Power Supply Alternative current Defects of Protective Grounding and Fuse Protective GroundingNecessity of Protective Grounding Fuse Installation Chapters Contents Setting A/D Integration Time Pen model Before Installation Handling Precautions Checking and Unpacking Checking Accessories and AppearanceAccessories No. Name Qty Remarks Spare Parts Name Removing Packings Removing Lock Screw and Packings for Transit Checking Model Codes Checking Model Codes Installation Site and Mounting Methods Installation Site Mounting Methods Mounting External Dimensions Panel cutout Pen model WiringRear Panel Terminal Arrangement Dot-printing model Power Supply Wiring Power Supply Wiring Input Signal Wiring Crimp-On Lugs RTD input Wiring for Input TerminalsTC input Terminal Board Output type Alarm Output Wiring optionContact characteristics Output capacity Remote Control Wiring option Input characteristics Component Names and Functions Front Panel Power switch push-button typeKey panel push-key type Status Display Chart cassetteData Display Characters on the Display Maintenance Switching Power On/Off Installing or Replacing Chart Paper Prepare a new chart Replacement under pen-replacement mode Installing or Replacing Pens Pen modelSimple replacement Felt-tip pen Plotter pen Installing or Replacing Ribbon Cassette Dot-printing model Starting/Stoping the Recording Feeding the ChartGetting the Recording Printing Samples Getting a Digital Printout Getting a List Printout Getting a SET UP List Printout Dot-printing model Printing Sample Display MAN except for the 1-pen model Selectting the DisplaySelecting a screen Periodic Maintenance MaintenanceIndication of Remaining Chart Length Cleaning the Carriage Shafts Battery ReplacementFuse Replacement Fuse Replacement Pen model CalibrationDot-printing model Required instruments for calibration Calibration procedureDC Voltage Signal for Pen model same as Dot-printing model Recommended instruments Temperature Compensation for Thermocouple Signal Reference Junction Compensation for Thermocouple Input Pen-Position Adjustment Pen model Adjusting procedure Daily OPERATION/MAINTENANCE Dot-Position Adjustment Dot-printing model Figure a Daily OPERATION/MAINTENANCE Data Setting Guides SET UP mode Operation modeSET mode Turning the function off Operation Mode Disp key SET Mode SET UP Mode Password Procedures to Enter Setting Data SET Mode Setting Input Range and Recording Span Range Key operation Skip SettingIndication Description Voltage Measurement Setting Volt Setting Volt Input Ranges Display Key operation Indication Description TC Type Description and RTD Type Description Digital Input Setting DI Setting Difference Computation Setting Delt Setting Scale Setting SCL Setting Indication Discription Key operation Indication Discription Setting to Obtain Square Root Sqrt SettingENT key Explanation of Square Root Setting Offsets Offst Setting Alarms Alarm Is displayed and the setting is completed. Press Assigning Units Unit Setting Chart Speed Chart Chart Speed unit mm/h Setting Date/Time Clock FIX Auto Assigning Tags TAG Setting Messages MSG Means ‘SPACE’ Setting Key-lock KEY SET UP Mode Setting Procedure Setting Alarm Hysteresis On/Off Setting A/D Integration Time Pen model Setting Upscale/Downscale TC Burnout Select Using the key. Press the ENT key Display Appears Configuring the Input Filter Pen Model Filter works as follows Buffer data for Setting for Moving Average Calculations Dot-printing modelNth sample +1th sample Turning Offset Settings Protection On/Off Assigning Different Colors to Channels Dot-printing model To select Display, and press the ENT key Select Setting Pen Offset Compensation On/Off Pen model, /D1 option Recorder as Viewed from the Side Turning Alarm Printing On/Off Use Key to select the display Press the ENT key Pen Model Chart Speed Setting Periodic Printout On/OffDot-printing Model Chart Speed Turning Printing of Changes in Chart Speed On/Off Setting Procedure Setting Procedure Selecting channel Number or Tag Changing the Temperature Unit /D2 option Select Using the key Press the ENT key. The display Appears Changing Default Settings for Remote Operation option Turning the Settings Protection Function On/Off Initializing Settings Error Codes Error Code ListRecovery Self-diagnostic Message Printout Meanings Store SET UP Settings Agaiin Troubleshooting Recorder is completely inoperative Is the input free of noise? Glitch is found other than the previously mentioned ploblems Warrant Y/ Disclaimer OMEGA…Of Course