Sierra 215 BEFORE STARTING

IM-215 Rev-A.1 Se ries Innova-Switch™ Page 2 of 42

SIERRA INSTRU MENTS apprecia tes your choosing our product for your liquid level or liquid/ gas flow

switching application. We are commi tted to providing reliable, quality instrume ntation to our customers.

To ensure the maximum and intended benefit of this instrumen t, we encourage you to read this br ief

operation and maintenance manual in its entirety prior to unpacking and ins talling the unit.

The following precautions should be n oted immediately:

• WHEN INSTALLING YOUR INNOVA-SWITCH™ INT O A PIPE OR VESS EL USE A 1 1/8 INCH

(28.575mm) OPEN- END WRENCH TO TIGHT EN AT THE HEX FLATS OF THE MNPT OF A

STANDARD SW ITCH. (IF YOU HAVE A NON-ST ANDARD SW ITCH AN ALTERNATE SIZE

WRENCH MAY BE REQUIRED). D O NOT USE THE INSTRUMENT H EAD TO TIGHTEN THE

SWITCH TO THE MOUNTING PORT. ROTATION OF THE INSTRUMENT HEAD WITH

RESPECT TO THE SENSOR BODY CAN CAUSE INTERN AL WIRING DAMAGE (SEE

FIGURES 1).

• THE SWITCH BODY MUST BE OR IENTED TO HAVE THE TWIN SENSOR S PARALLEL TO

THE LEVEL B EING DETECTED WHEN THE SENSOR IS INSTALLED HORIZON TALLY FOR

POINT LEVEL APPLICA TIONS. LIKEWISE, FOR FLOW APPLICATIONS, THE SWITCH

BODY MU ST BE ORIENT ED TO HAVE THE TWIN SENSORS PERPENDICULAR TO THE

FLOW BEING DETECT ED. DUE TO THE PIP E THREA D MOU NTING, IT MAY BE

NECESSARY TO MAKE A TRIAL FIT, ADD OR R EMOVE TEFLON TAPE OR OTHER PIPE

THREAD SEALANT, AND REIN STALL TO ACHIEVE A SATISFACTORY SEAL WITH THE

SENSORS PROPERLY ORIENTED. FOR VERTICAL INSTALLATION OF SENSORS FOR

POINT LEVEL DETECTION THE ORIENTATION MAKES NO DIFFERENCE. PROPER

ORIENTATION IS MARKED ON THE SWITCH BODY FOR REFERENCE ( SEE FIGURE 5).

• A GROUND WIRE MUST BE ATTACH ED TO THE G ROUND SCREW LOCA TED INSIDE THE

INSTRUMENT ENCLO SURE FOR PROPER OPERATIO N. FOR CENELEC/CE OPTION THE

GROUND SCREW IS LOCATED OUTSIDE THE BODY OF THE INSTRUM ENT ENCLOSURE

(SEE FIGURE 6).

• BE SURE TO APPLY THE PROPER VOLTAGE AS CONFIGURED AT THE FA CTORY. DO

NOT APPLY 11 5 VAC TO 24 VDC VERSION S OR 24 VDC TO 115 VAC VERSIONS.

(LIKEWISE 230 VAC).

• FOR OPTIMUM OPERATION, CALIBRATION MUST BE ACCO MPLISHED AT ACTUAL

PROCESS TEMPERATURE AND PRESSURE CONDIT IONS IN GA SES AND AT ACTUAL

PROCESS TEMPERATURE CONDI TIONS IN LIQUIDS.

• DO NOT SANDBLAST OR ABRASIVE CLEAN THE SENSING PROBES. THE SENSING

PROBES COULD BE DAMAGED BY ABRASIVES.

• ALL DIMENSIONS GIVEN IN THIS MANUAL ARE IN INCHES (AND MILLI METERS).

If you have any questions prior to or during installation and calibration, please do not hesitate to call the

factory for ass istance. We want to ensure the very best poss ible installation and operational results for

your benefit.