Maintenance | SSI America 7SL manual

MAINTENANCE

1.Remove power from the power supply terminals and from relay output terminals.

2.Remove the instrument from case.

3.Using a vacuum cleaner or a compressed air jet (max. 3kg/cm2) remove dust and dirt which may be present on the louvers and on the internal circuits, being careful to not damage the electronic components.

4.Clean external plastic or rubber parts only with a cloth moistened with ethyl alcohol (pure or denatured)

[C2H5OH]; or isopropyl alcohol (pure or denatured) [(CH3)2CHOH]; or water [H2O]

5.Verify that there are no loose terminals.

6.Before re-inserting the instrument in its case, be sure it is perfectly dry.

7.Re-insert the instrument and turn it ON.

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SSI America 7SL instruction manual Maintenance

Contents

Model 7SL HIGH/LOW Limitrol 16 DIN, Four Digit HIGH/LOW Limitrol Guide to simple set-up Congratulations USE Wire Suitable For 75C Minimum Table of Contents Mounting Requirements Dimensions and Panel Cutout Measuring Inputs TC Input Wiring GuidelinesTerminal Layout Logic Input Linear InputRTD Input RTD 7sl-1-00.p65 17/02, 239 PM OUT Relay Outputs Common Serial Interface Preliminary Hardware Settings Power Line and groundingPower Supply Limitrol without RS-485 Limitrol with RS-485 Configuration Procedure Configuration KEY Functions R1 = Input Type and Range Value R2 = Decimal Point Position R5 = Offset AdjustmentR7 = Alarm Action on Fault C2 = Acknowledgment Mode Control Output Function P2 = Alarm configuration C3 = Reset at Power-upC4 = Reset Memory OFF = P3 = Alarm ActionAlarm Standby Function = Safety Lock T1 = Timeout Selection tn10 = 10 second timeout Reset Operating ModeNormal Display Mode Indicators Key Functions in Parameter Display Mode Key Functions in Normal Display ModeParameter Display Mode Operating Parameters Dealing with Error Messages Error MessagesError Messages Error List Loading Default Configuration Parameters Default ParametersLoading Default Operating Parameters Default Operating Parameters List Para Default Configuration Parameter List Specifications Normal Mode Rejection Ratio Display Update Time RangeTemperature Drift Common Mode Rejection Ratio Type of Alarm Acknowledgment ModePower-Up Mode Alarm Function ENV50140 ReferencesCEI 70-1 IEC Nema Calibration Parameters Calibration ProcedureGeneral Guidelines Entering Calibration Values ProcedureTH TC Input Final Scale Value TC Input Check PL RTD Input Initial Scale Value PH RTD Input Final Scale ValueRTD Check RJ. Cold Junction Compensation Check Volt Input Check AH Current Input Final Scale ValueCurrent Input Check NH 5 Volt Input Final Scale Value UH 10 Volt Input Final Scale Value UL 10 Volt Input Initial Scale Value Maintenance Manual Part No 7SL