Sierra 615-LS3200 User Manual

Innova-Switch™ Series

615 Series Mass Flow/ Level Switch

Instruction Manual

Part Number: Im-615, Rev. B, July 2010

CCOORRPPOORRAATTEE HHEEAADDQQUUAARRTTEERRSS

5 Harris Court, Building L, Monterey, C A 93 940 U.S.A.

Phone [phone] Toll Free [phone] Fax [phone]

www.sierrainstruments.com

EEUURROOPPEEAANN HHEEAADDQQUUAARRTTEERRSS

Bijlmansweid 2, 1934RE Egmond aan den Hoef

The Netherlands

Phone [phone] Fax [phone]

AASSIIAA--PPAACCIIFFIICC HHEEAADDQQUUAARRTTEERRSS

RM. 618, Tomson Centre, Bldg. A, 188 Zhang Yang Road

Pu Dong New District, Shanghai, P. R. China

Phone [phone] Fax [phone]

Sierra Instruments Innova-Switch™ Instruction Manual

© COPYRIGHT SIERRA INSTRUMENTS 2010

No part of this publication may be copied or distributed, transmitted, transcribed, stored in a retrieval system, or
translated into any human or computer language, in any form or by any means, electronic, mechanical, manual, or
otherwise, or disclosed to third parties without the express written permission of Sierra Instruments. The information
contained in this manual is subject to change without notice.

TRADEMARKS

Innova-Swtich™ is a registered trademark of Sierra Instruments, Inc. Other product and company names listed in
this manual are trademarks or trade names of their respective manufacturers.

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Sierra Instruments Innova-Switch™ Instruction Manual

IMPORTANT CUSTOMER NOTICE

Before installing and operating the flow meter, please read this manual carefully and follow its instructions.
¾ Sierra has verified the conformity between the contents in this manual and the hardware and software

described. However, errors may still exist. We regularly review the materials covered in this manual and
correct errors with revisions. Any suggestions for improvement will be appreciated.

¾ Go to www.sierrainstruments.com/products/downloads.html for a most current electronic version of this

manual.

¾ We reserve the right to change the content of this manual without prior notification.
¾ If you have any questions or problems regarding this manual, please contact Sierra’s Customer Service

Department:
Toll Free: 800-866-0200 Phone: [phone] Fax: [phone]

Email: [e-mail]

WARNINGS IN THIS MANUAL

Caution and warning statements are used throughout this book to draw your attention to important information.

WARNINGS

“Warning” indicates that ignoring the relevant
requirements or precautions may result in
personal injury or flow meter damage.

NOTES

“Note” indicates that ignoring the relevant
requirements or precautions may result in flow
meter damage or malfunction.

BEFORE STARTING

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Sierra Instruments Innova-Switch™ Instruction Manual

Sierra Instruments appreciates your choosing our product for your liquid level or liquid/gas flow
switching application. We are committed to providing reliable, quality instrumentation to our customers.

To ensure the maximum and intended benefit of this instrument, we encourage you to read this brief
operation and maintenance manual in its entirety prior to unpacking and installing the unit.

The following precautions should be noted immediately:

φ WHEN INSTALLING YOUR SIERRA INNOVA-SWITCH™ INTO A PIPE OR VESSEL USE A 1

1/8 INCH (28.575mm) OPEN-END OR ADJUSTABLE WRENCH TO TIGHTEN AT THE HEX
FLATS OF THE MNPT OF A STANDARD SWITCH. (IF YOU HAVE A NON-STANDARD
SWITCH AN ALTERNATE SIZE WRENCH MAY BE REQUIRED). DO NOT USE THE
INSTRUMENT HEAD TO TIGHTEN THE SWITCH TO THE MOUNTING PORT. ROTATION
OF THE INSTRUMENT HEAD WITH RESPECT TO THE SENSOR BODY CAN CAUSE
INTERNAL WIRING DAMAGE (SEE FIGURES 1).

φ THE SWITCH BODY MUST BE ORIENTED TO HAVE THE TWIN SENSORS PARALLEL TO

THE LEVEL BEING DETECTED WHEN THE SENSOR IS INSTALLED HORIZONTALLY FOR
POINT LEVEL APPLICATIONS. LIKEWISE, FOR FLOW APPLICATIONS, THE SWITCH
BODY MUST BE ORIENTED TO HAVE THE TWIN SENSORS PERPENDICULAR TO THE
FLOW BEING DETECTED. DUE TO THE PIPE THREAD MOUNTING, IT MAY BE
NECESSARY TO MAKE A TRIAL FIT, ADD OR REMOVE TEFLON TAPE OR OTHER PIPE
THREAD SEALANT, AND REINSTALL 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).

φ A GROUND WIRE MUST BE ATTACHED TO THE GROUND SCREW LOCATED INSIDE THE

INSTRUMENT ENCLOSURE FOR PROPER OPERATION. FOR CENELEC/CE OPTION THE
GROUND SCREW IS LOCATED OUTSIDE THE BODY OF THE INSTRUMENT ENCLOSURE
(SEE FIGURE 6).

φ BE SURE TO APPLY THE PROPER VOLTAGE AS CONFIGURED AT THE FACTORY. DO

NOT APPLY 115 VAC TO 24 VDC VERSIONS OR 24 VDC TO 115 VAC VERSIONS.
(LIKEWISE 230 VAC).

φ FOR OPTIMUM OPERATION, CALIBRATION MUST BE ACCOMPLISHED AT ACTUAL

PROCESS TEMPERATURE AND PRESSURE CONDITIONS IN GASES AND AT ACTUAL
PROCESS TEMPERATURE CONDITIONS IN LIQUIDS.

φ TO ENSURE ACCURATE CALIBRATION AND AVOID SET POINT DRIFT, IT IS IMPERATIVE

THAT A MINIMUM OF 10 MINUTE WAIT BE OBSERVED AFTER POWER IS APPLIED TO
ALLOW THE SENSOR TO WARM-UP TO THE AMBIENT FLUID TEMPERATURE.

LIKEWISE, WHEN ADJUSTING THE ZERO, SPAN, AND SET POINTS POTS, A MINIMUM

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Sierra Instruments Innova-Switch™ Instruction Manual

OF 30 SECONDS SHOULD BE OBSERVED TO ALLOW FOR STABILIZATION OF
TEMPERATURE.

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

factory for assistance. We want to ensure the very best possible installation and operational results for
your benefit.

NOTICE

This manual covers the following model numbers:

Innova-Switch™ Series Models 615- FS4200 615-LS3200

Agency Approvals Explosion-Proof rating Mass Flow Switch Point Level Switch

CENELEC EEx d IIB T4 (Killark Enclosure)
European EEx d IIC T4 (Akron Electric Enclosure) FS42CN LS32CN
See Figure 1A and 1B

CSA T4A
Canadian Standards Class I, Group B,C,D FS42CS LS32CS
Class II, Group E,F,G
(Both Akron Electric and Killark)

Non-Approved Non-Explosion Proof FS42NX LS32NX
Switch Kits

(No Enclosures) Not Rated FS42SK LS32SK

(Ref. Section
CE 3.2.3 wiring) EMC Directive: 89/336/EEC Option – CE Option -CE

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Sierra Instruments Innova-Switch™ Instruction Manual

SPECIAL NOTICE

The electronic assemblies contained in the Innova-Switch™ models are configured for specific
voltages and have specific modifications to accommodate the various agency approvals. When
ordering spare electronics, replacements, or exchanges in the field please ensure you identify the
specific configuration you have by noting the boxes marked on the transformer configuration tag.

*WARNING*

THE WETTED SENSOR OF THE SWITCH IS OF AN ALL WELDED CONSTRUCTION

CREATING A PRESSURE BOUNDARY FROM THE PROCESS FLUID (LIQUID OR

GAS). ANY BREACH OF THIS BOUNDARY THROUGH CORROSION,

MISTREATMENT, OR MISAPPLICATION COULD ALLOW THE PROCESS FLUID TO

ENTER THE ENCLOSURE OF THE UNIT.

PROCEED WITH CAUTION WHEN OPENING THE ENCLOSURE AFTER A BREACH OF

THE PRESSURE BOUNDARY TO AVOID CONTACT WITH ANY PROCESS FLUIDS THAT

MAYBE CONTAINED WITHIN THE ENCLOSURE.

*CAUTION*

IF THE FLUID PROCESS TEMPERATURE EXCEEDS 40 DEG C, THIS INSTRUMENT

CANNOT BE USED IN AN EXPLOSION PROOF APPLICATION UNLESS THE IGNITION

TEMPERATURE OF THE FLUID ATMOSPHERE IS A MINIMUM OF 80 DEG C HIGHER

THAN THE PROCESS TEMPERATURE.

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Sierra Instruments Innova-Switch™ Instruction Manual

TABLE OF CONTENTS

1.0 INTRODUCTION

2.0 DESCRIPTION

2.1 LEVEL SWITCHING

2.2 FLOW SWITCHING

3.0 INSTALLATION

3.1 MECHANICAL INSTALLATION

3.2 ELECTRICAL INSTALLATION

3.2.1 LOCAL ELECTRONICS (LE OPTION/STANDARD)

3.2.2 REMOTE ELECTRONICS (RE) OPTION

3.2.3 CE OPTION FILTER BOARD CONNECTOR PLATE WIRING (CE OPTION)

4.0 OPERATION AND CALIBRATION OF THE INNOVA-SWITCH™ FOR FLOW APPLICATIONS

4.1 PRE-OPERATIONAL CHECKS

4.2 L.E.D. AND RELAY STATUS LOGIC (FAIL-SAFE)

4.3 CALIBRATION – FLOW

5.0 OPERATION AND CALIBRATION OF THE INNOVA-SWITCH™ FOR POINT LEVEL
APPLICATIONS

5.1 PRE-OPERATIONAL CHECKS

5.2 L.E.D. AND RELAY STATUS LOGIC (FAIL-SAFE)

5.3 CALIBRATION – LEVEL

6.0 MAINTENANCE AND TROUBLE SHOOTING

6.1 CLEANING

6.2 TROUBLE SHOOTING

6.2.1 POWER AND CONTINUITY VERIFICATION

6.2.2 SENSOR/ELECTRONICS FUNCTIONALITY VERIFICATION

6.2.3 SET POINT DRIFT

7.0 SPECIFICATIONS

8.0 WARRANTY AND SERVICE

8.1 WARRANTY

8.2 SERVICE

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Sierra Instruments Innova-Switch™ Instruction Manual

9.0 APPENDIX

9.1 VOLUME FLOW CONVERSION CHART

9.2 FLOW CONVERSION CHART

9.3 FLOW OF WATER THROUGH SCHEDULE 40 STEEL PIPE (AVAILABLE IN PRINTED

MANUAL ONLY)

10 OPTIONS

10.1 LIVETAP (LT)

10.2 VARIABLE INSERTION (VI)

10.3 SANITARY (3A1)

10.4 LOW FLOW SENSOR (LFS)

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Sierra Instruments Innova-Switch™ Instruction Manual

1.0 INTRODUCTION

The Sierra Innova-Switch™ is the state-of-the-art in gaseous and liquid flow switching or

liquid level control. Flow or level detection is accomplished by using a high resolution
thermal differential technique. The sensor wetted parts are of durable 316L series
stainless steel, all welded construction with no moving parts. The switch is easy to install
and adjust, giving reliable, low maintenance performance in the most demanding
applications.

2.0

The Innova-Switch™ uses a thermal differential technique to sense changes in the heat

The Sierra Instruments’ sensor excitation method relies on constant current to the heated

DESCRIPTION

transfer characteristics of a media. Figures 1A and 1B show the outline of the Innova­Switch™. The sensor consists of a pair of matched, Resistance Temperature Detectors
(RTD's) encased in twin 316L series stainless steel tubes. One RTD is self-heated using a
constant DC current. The other RTD is unheated to provide an accurate process
temperature reference. The thermal differential created between the heated and reference
RTD pair is a function of the density and/or velocity of the media with which the sensor is in
contact. Other physical properties may have a secondary effect as well. The differential is
greatest at a no flow (or dry) condition and decreases as the rate of flow increases (or as a
liquid quenches the sensor/wet condition).

and reference sensors. Thus power to the heated sensor is not constant but changes
linearly with temperature as the sensor resistance changes. Temperature compensation is
accomplished by using the amplified reference sensor voltage which also changes linearly
with temperature, as a dynamic reference. During calibration dry/no flow and wet/full flow
conditions are impressed across the trip point potentiometer. Since this reference is not
fixed but is set with respect to the reference sensor voltage, as temperature changes the trip
point potentiometer voltage changes with temperature exactly the same as that of the heated
sensor voltage with which it is being compared. Thus full temperature compensation is
achieved with non constant power.

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Sierra Instruments Innova-Switch™ Instruction Manual

DIMENSIONS IN INCHES (MILLIMETERS)
FIGURE 1A INNOVA-SWITCH OUTLINE DIAGRAM STANDARD 2.0 INCH INSERTION

(KILLARK ENCLOSURE – NEMA 4-EExd 11B, T4) (MTF1A00.DWG/.FCW)

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Sierra Instruments Innova-Switch™ Instruction Manual

FIGURE 1B INNOVA-SWITCH 615 SERIES OUTLINE DIAGRAM STANDARD 2.0 INCH

INSERTION (AKRON ELECTRIC ENCLOSURE – NEMA 4X – EexdIIC, T4)

(MTF1B00.DWG/.FCW)

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Sierra Instruments Innova-Switch™ Instruction Manual

5.1 (129.54) REF.

6.0 (152.4) REF.

2.00 (50.8) REF.

DRAWING FILE: CIXI.DWG

5.20 (132) REF.

.8 (20.32) REF.

5.04 (128) REF.

3.88 (98.6) REF.

SEE FIGURE 5

DIMENSIONS IN INCHES (MILLIMETERS)

FIGURE 1C INNOVA-SWITCH 615 SERIES OUTLINE DIAGRAM STANDARD 2.0 INCH

INSERTION (CIXI ENCLOSURE – NEMA 4X)(CIXI.DWG)

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Sierra Instruments Innova-Switch™ Instruction Manual

2.1 LEVEL SWITCHING

The thermal differential created between the heated and reference unheated RTD pair is a

function of the liquid or gas medium with which the sensor is in contact.

The point level measurement application uses the heat transfer differences between two media

to detect liquid level. For example, air has a relatively poor heat transfer characteristic so the
heated sensor will become relatively hot. If the sensor is then immersed in water, the relatively
high heat transfer characteristics of water will cool the heated RTD surface causing a decrease
in the signal output.

This same rational applies for any two media in contact with the sensor. Each medium will have

its own characteristic heat transfer properties. As long as there is a reasonable difference in the
heat transfer properties between the two media, the Innova-Switch™ can discriminate between
them. Figure 2A shows the relative signal output of the Innova-Switch™ sensor to a range of
different media. The maximum difference in output occurs between vacuum and liquid metal.
However, a significant difference occurs between water and hydrocarbon liquids so the Innova­Switch™ can be used to detect a water/hydrocarbon liquid-liquid interface. In general, the
interface between any two media with differing heat transfer properties can be detected.

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Sierra Instruments Innova-Switch™ Instruction Manual

SIGNAL

FIGURE 2A: RELATIVE CHANGE IN RESPONSE OF A HEATED RTD IMMERSED

IN VARIOUS MEDIA

VACUUM

DECREASING THERMAL DISPERSION OR HEAT TRANSFER

0

2.2 FLOW SWITCHING

Most mass flow monitoring techniques calculate mass indirectly by measuring volumetric flow

such as gallons per minute or cubic cm per second, then either measure density separately or
calculate it from temperature measurements of the fluid and, finally, combine density and
volumetric flow to obtain mass flow. The Sierra thermal-differential technique is one of two
methods that directly measure the mass flow. For ease of comparison most flow applications
are presented in terms of velocity which is independent of the flow cross sectional area (i.e. feet
per second (FPS)). The true mass flow equivalent would be FPS multiplied by density but for
simplicity FPS is used and density effects are ignored. This is normally not critical for flow
switching applications.

When the sensor is inserted into a liquid or gas the heated RTD is strongly affected by the

velocity of the medium. Flow past the heated RTD changes the heat transferred from the
surface of the sensor. This cooling effect reduces the temperature of the sensor. The
Innova-Switch™ compa re s th is c hange to a preset flow trip point to switch the output. Figure
2B shows the model 615 signal change vs. flow rate for air, light hydrocarbon liquids, and
water. The signal change vs velocity has the same general shape for all three media but the
change is larger for air and the sensitive range is different for each. For air and most

AIR

HYDROCARBON LIQUIDS

WATER

LIQUID METALS

MEDIA

DRAWING FILE: MTF2A0.DWG

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Sierra Instruments Innova-Switch™ Instruction Manual

gaseous media the range is 0.1 to 500 feet per second (FPS). For most liquid media the
range is 0.01 to 5 FPS (Hydrocarbons) and 0.01 to 2.5 FPS (water). Appendices in section

9.0 contain flow conversion information to facilitate conversion from various units and pipe
dimensions into flow velocity in feet per second.

Gas Or Liquid

Flow

Note: The fluid

velocity and heat
absorption ability
determine the
differential between
the tips. Their

For a no flow condition the thermal
differential between the two tips is
high because of relatively low heat
transfer.

When the lower differential matches
the customer select flow velocity trip
point (set point) the switch relay and
red LED are tripped.

combination
determines the
measurable
velocity. In water
velocities from 0.01
to 2.5 FPS are
measurable. In
Hydrocarbons
velocities from 0.01
to 5 FPS are
measurable,
whereas in air
velocities of 0.1 to
500 FPS can be
measured.

Flow across the tips decreases
the thermal differential because
of the higher heat transfer of
flowing fluids. This differential is
compared with the trip point.

When flow is above the trip point
the differential is smaller than at
the set point and the relay and
LED remain tripped.

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Sierra Instruments Innova-Switch™ Instruction Manual

FIGURE 2B INNOVA-SWITCH MODEL 615 FLOW RESPONSE FOR THREE MEDIA

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Sierra Instruments Innova-Switch™ Instruction Manual

Figure 3.A shows a block diagram of the Innova-Switch™.
Once the switch is set to respond to the minimum and maximum flow rates (or wet vs. dry

conditions), the trip point is set by adjusting the Trip Adjust Potentiometer. Solid state
electronics transform the flow (or wetting) induced temperature differential into a voltage that
is compared to a control voltage. Matching voltages cause actuation of a relay to indicate a
change in state (flow vs. no-flow or dry vs. wet).

TBA

1

H

2

HS

3

C

4

CS

5

RTN

6

RTNS

PROBE

FIGURE 3A: INNOVA-SWITCH SERIES BLOCK DIAGRAM
MODELS LS32CS/FS42CS, LS32CN/FS42CN, LS32NX/FS42NX,
AND LS32SK/FS42SK
(MTF3A00.DWG/.FCW)

VCC

SIGN AL PROCESSING ELECTRONICS

SENSORS EXCIT. CURRENTS RETURN

VCC

CURRENT SOURCES

TRIP P OINT

%

CALIBRATION

0 FLOW / DRY CAL.

TEST POINTS

1000

MA X.FLOW / WET CA L.

VCC

POWER SUPPLY

COMPARATOR

VCC

ENCLOSURE

VCC

RED

LED LIGHTS

GREEN

A

B

FAILSAFE LOG IC

RELAY DRIVER

RELAY

SAFETY GROUND

DRAWING FILE: MTF3A00.DW G/.FCW

10

9
8

N

POWER IN

7

H

6

C

5

NO

CONTA CT # 1

4

NC

3

C

2

NO

CONTACT 2

1

NC

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Sierra Instruments Innova-Switch™ Instruction Manual

Figure 3B shows a block diagram of the Innova-Switch™ with the addition of an EMC filter
required for the CE options (see section 7.0).

PROBE

TBA

1

H

2

HS

3

C

4

CS

5

RTN

6

RTNS

VCC

SIGNAL PROCESSING ELECTRONICS

SENSORS EXCIT. CURRENTS RETURN

FIGURE 3B: INNOVA-SWITCH MODELS WITH THE CE OPTION SWITCH BLOCK

DIAGRAM

(MTF3B00.DWG)

VCC

CURRENT SOURCES

TRIP POINT

%

CALIBRAT ION

R10

0 FLOW / DRY CAL.

MAX .F LOW / WE T CA L.

TEST POINT S

1000

R13

VCC

POWER SUPPLY

VCC

COMPARATOR

ENCLOSURE

RED

LED LIGHTS

GREEN

A

B

FAILSAFE LOGIC

RELAY DRIVER

EMC FILTER

CE

APPROVED

SWITCHES

10

N

VCC

RELAY

FILTERED POWER

9

H

8

N

7

H

6

C

5

NO

4

NC

3

C

2

NO

1

NC

TBB

POWER IN

CONTACT # 1

CONTACT 2

SAFETY G RO UND

DRAWING FILE: MTF3B00.DWG

10

Sierra Instruments Innova-Switch™ Instruction Manual

The instrument enclosure at the top of unit contains the Innova-Switch™ electronics board which is
removable to access the terminal block and facilitate field wiring (see Figure 4.0). For applications
where the electronics must be located away from the sensors due to elevated process temperature,
accessibility, etc., another instrument head containing the electronics is remotely located (See option
RE-Remote Electronics section 3.2.2).

FIGURE 4 INNOVA-SWITCH™ ASSEMBLY

(MTF400.DWG/.FCW)

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Sierra Instruments Innova-Switch™ Instruction Manual

3.0 INSTALLATION

3.1 MECHANICAL INSTALLATION

The standard Innova-Switch™ has a .75 inch (19.05mm) MNPT mount designed for easy

installation through a threaded port. Optional configurations include .5” (12.7mm) or 1.0”
(25.4mm) MNPT and flange mounts. Conduit is recommended for all wiring to the switch.

*IMPORTANT*

WHEN INSTALLING YOUR SIERRA INNOVA-SWITCHINTO A PIPE OR

VESSEL USE A 1 1/8 INCH (28.575mm) OPEN-END OR ADJUSTABLE
WRENCH TO TIGHTEN AT THE HEX FLATS OF THE MNPT OF A
STANDARD SWITCH. (IF YOU HAVE A NON-STANDARD SWITCH AN
ALTERNATE SIZE WRENCH MAY BE REQUIRED). DO NOT USE THE
INSTRUMENT HEAD TO TIGHTEN THE SWITCH TO THE MOUNTING
PORT. ROTATION OF THE INSTRUMENT HEAD WITH RESPECT TO THE
SENSOR BODY CAN CAUSE INTERNAL WIRING DAMAGE.

*IMPORTANT*

THE SWITCH BODY MUST BE ORIENTED TO HAVE THE TWIN SENSORS

PROPERLY ORIENTED. DUE TO THE PIPE THREAD MOUNTING, IT MAY
BE NECESSARY TO MAKE A TRIAL FIT, ADD OR REMOVE TEFLON
TAPE OR OTHER PIPE THREAD SEALANT, AND REINSTALL TO
ACHIEVE A SATISFACTORY SEAL WITH THE SENSORS PROPERLY
ORIENTED. PROPER ORIENTATION IS MARKED ON THE SWITCH BODY
FOR REFERENCE. SEE FIGURE 5.0 FOR DETAILS.

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Sierra Instruments Innova-Switch™ Instruction Manual

FIGURE 5: PROPER ORIENTATION OF THE SENSOR PROBE FOR LEVEL AND

FLOW APPLICATION IS INDICATED BY THE ARROW ON THE FLAT OF
THE MOUNTING FITTING. (MTF500.DWG/.FCW)

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Sierra Instruments Innova-Switch™ Instruction Manual

3.2 ELECTRICAL INSTALLATION

3.2.1 LOCAL ELECTRONICS (LE OPTION/STANDARD)

Remove the instrument enclosure lid by unscrewing in a counter clockwise direction.

Unscrew (CCW) the printed circuit board captive screws (See Figure 4.0 for locations).
Remove the PC board by grasping the transformer and pulling it straight out. Connect power
and alarm relay wiring to Terminal Block (TBB) as shown in Figure 6.0. Reinstall the Innova­Switch™ electronics and tighten the captive screws.

NOTES:

INSTRUMEN T HEAD
WITH COVER
REMOVED

CAUTION

USE SUPPLY WI RES SUI TABLE

FOR 10 DEG. C ABOVE AMBIENT

NHCNONCN

-

+

POWER REL1-1 REL1-2

1

1

N

C

C

O

SAFETY GROUND

(NOTE 3)

TERMINAL BLOCK
LOCATIONS

TBB

WIRING CONNECTIONS (NOTE 4)

(NOTE 2)

POWER

N

H

NO CON

NO CON-+CNO

10987654

RELAY

NC

321

321

SAFETY GND

(DPDT)

CNONC

654

TBB

TBA

TBA

SENSOR

HOT

SENSOR

(NOTE 1)

COLD

TO SENSORS

DRAWING FILE: MTF600.DWG/.FCW

FIGURE 6.0 INNOVA-SWITCH™ LOCAL ELECTRONICS FIELD WIRING DIAGRAM
(MTF600FCW/.DWG)

1. Connections to sensors terminal block A (TBA) are factory installed and should
not be disconnected in the field. Note Jumpers 1-2, 3-4, and 5-6 must be in place
on TBA for proper operation of local electronics.

2. For 24 VDC operation (factory prepared), connect +positive to TBB7 and –negative
return to TBB8. For 110 VAC or 220 VAC connect hot to TBB7 and neutral to
TBB8.

3. Connect ground wire to ground screw located in or on the instrument enclosure.

4. Use supply wires suitable for 10 Degrees C above ambient.

*IMPORTANT*

A GROUND WIRE MUST BE ATTACHED TO THE GROUND SCREW
LOCATED INSIDE OR OUTSIDE OF THE INSTRUMENT ENCLOSURE FOR
PROPER OPERATION.

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Sierra Instruments Innova-Switch™ Instruction Manual

3.2.2 REMOTE ELECTRONICS (RE OPTION)

For the remote electronics option, mount the remote instrument head using two mounting

wings or bracket provided. Connect the switch wiring between the Innova-Switch™ remote
electronics as shown in Figure 7.0. Connect power wiring and alarm relay wiring to the
remote enclosure as shown in Figure 7.0. Upon completion of wiring reinstall the Innova­Switch™ electronics and secure with the captive screws.

*IMPORTANT*

BE SURE TO APPLY THE PROPER VOLTAGE AS CONFIGURED AT THE

FACTORY. DO NOT APPLY 110 VAC TO 24 VDC VERSIONS OR 24 VDC
TO 110 VAC VERSIONS (LIKEWISE 220 VAC). NOTE THAT ALL
VOLTAGES ARE NOMINAL.

SPECIAL NOTICE

The electronic assemblies contained in the microtuf® models are configured for specific
voltages and have specific modifications to accommodate the various agency approvals.
When ordering spare electronics, replacements, or exchanges in the field please ensure
you identify the specific configuration you have by noting the boxes marked on the
transformer configuration tag and the serial number.

16

Sierra Instruments Innova-Switch™ Instruction Manual

17

FIGURE 7A INNOVA-SWITCH ™ REMOTE ELECTRONICS OPTION FIELD WIRING

DIAGRAM (MTF701.DWG/.FCW)

Sierra Instruments Innova-Switch™ Instruction Manual

18

FIGURE 7B INNOVA-SWITCH REMOTE ELECTRONICS CABLE TERMINATION

AND CONNECTIONS

Sierra Instruments Innova-Switch™ Instruction Manual

S

3.2.3 CE OPTION FILTER BOARD CONNECTOR PLATE WIRING (CE OPTION)

Remove the instrument enclosure lid by unscrewing in a counter clockwise direction.

Unscrew (CCW) the printed circuit board captive screws (See Figure 4.0 for locations).
Remove the PC board by grasping the transformer and pulling it straight out. Connect power
and alarm relay wiring to Power Block as shown in Figure 6A. Reinstall the Innova-Switch™
electronics and tighten the captive screws.

FIGURE 6A INNOVA-SWITCH™ REMOTE ELECTRONICS FIELD WIRING DIAGRAM
(MTF6A00FCW/.DWG)

NOTES:

1. Connections to sensors terminal block A (TBA) are factory installed and should
not be disconnected in the field. Note Jumpers 1-2, 3-4, and 5-6 must be in place
on TBA for proper operation of local electronics.

2. For 24 VDC operation (factory prepared), connect +positive to TBB7 and –negative
return to TBB8. For 110 VAC or 220 VAC connect hot to TBB7 and neutral to
TBB8.

3. Connect ground wire to ground screw located in or on the instrument enclosure.

4. Use supply wires suitable for 10 Degree C above ambient.

TBB

TBA

SHIELDS
FLOATING AT
THIS END

HOT
SENSOR

GNDEARTH

CAUTI ON: Use s upply wires suitable
for 10°C above surrounding ambient.

NHCNONCN

-

+

POWER REL1-1 REL1-2

234

1

56

321

COLD

SENSOR

POWER

N

C

DM # 101654

O

C

SHIELDS CONNECTED
TO TERMINAL 5 AT
THIS END

3 TWISTED
SHIELDED PAIRS CABLE

654

REMOTE PROBE

RELAY CON T A CT S

REMOTE ELECTRONIC
FILTER CONN PLATE
(CE OPTION)

*IMPORTANT*

A GROUND WIRE MUST BE ATTACHED TO THE GROUND SCREW
LOCATED INSIDE OR OUTSIDE OF THE INSTRUMENT ENCLOSURE FOR
PROPER OPERATION.

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Sierra Instruments Innova-Switch™ Instruction Manual

4.0 OPERATION AND CALIBRATION OF THE INNOVA- SWITCH™ MODEL 615 FOR
FLOW

4.1 Pre-Operational Check

With the switch installed and process conditions at no-flow, the following procedure can be

used to verify preliminary operation.

4.1.1 Remove the instrument enclosure cover by turning counter clockwise (ccw) to expose the

Innova-Switch™ electronics.

4.1.2 Turn on power at its source.

4.1.3 Observe that either the red or green LED comes on.

4.1.4 If neither lamp illuminates refer to the trouble shooting Section, 6.2.

4.2 L.E.D. and Relay Status Logic (Fail-safe)

4.2.1 The L.E.D.s (Red; Green) are an indication of the sensors status (ie. flow below the setpoint

or flow above the set point) and are not affected by the position of the failsafe jumper J-2.
The failsafe jumper J-2 changes the relay activation status allowing the user to select the
failsafe power off condition most appropriate to the application. Refer to the tables below
that show the logic conditions between the sensors, L.E.D. lights, relay coil and contacts for
each position of the failsafe jumper J-2.

4.2.2 Normal Operation (as set at factory)

The switch comes configured from the factory with the following operation with the J-2

jumper in the B(2-3) position. (Refer to Figure 8.0.)

RELAY
RED GREEN RELAY CONTACT
SENSOR STATUS LED LED COIL STATUS STATUS

o NC
No Flow or Flow Below Set Point ON OFF Activated

o NO
o NC

Flow or Flow Above Set Point OFF ON Deactivated
o NO

APPLICATIONS

21

Sierra Instruments Innova-Switch™ Instruction Manual

FIGURE 8.0 INNOVA-SWITCH™ ELECTRONICS

(MTF800.FCW/.DWG)

4.2.3 Alternate Operation (Field Selectable)

The relay logic may be reversed by moving the J-2 jumper to position A(1-2). (Refer to

Figure 8.0.)

RED GREEN RELAY CONTACT
SENSOR STATUS LED LED COIL STATUS STATUS

o NC
No Flow or Flow Below Set Point ON OFF Deactivated

o NC
Flow or Flow Above Set Point OFF ON Activated
o NO

RELAY

o NO

22

Sierra Instruments Innova-Switch™ Instruction Manual

010

SIGNAL (mV)

LIQUIDS
GASES

LED LIGHTS

FIGURE 9.0 INNOVA-SWITCH MODEL 615 FLOW SWITCH
CALIBRATION REFERENCE DRAWING
(MTF900.DWG.FCW)

PROBE FLOW RESPONSE FOR THREE MEDIA AND

CALIBRATION SETTINGS FOR EACH

AIR

HYDROCARBONS

WATER

0

0.001

0.10

RED

GREEN

GND

0.01

1.0

RED

FUSE

H2

H1

N2

L1

N1

U3

Q1

U1

0.10

10.0

VELOCITY (FPS)

FAILSAFE JUMPER (J2)

J2

AB

GREEN

RELAY

Q6

T1

U4

<----->

TP1

U2

TP4

R13

J1

50

R10

0

100

TP3

TP2

1.0

100.0

R15

DRAWING FILE: MTF900.DWG/.FCW

FS42CS

FS42CE
FS42NX
FS42SK

10
1000

R10

(ZERO ADJ.)

R15

(TRIP POINT ADJ.)

TRIP POI NT POT. (R15) SCALE

% SPAN

100

50

0

R13

(SPAN ADJ.)

SPAN

TRIP POINT

0

% SPAN

100

50

LIQUIDS
GASES

NORMALIZED RESPONSE AFTER CALIBRATION

0

0.001

0.10

0.01

1.0

0.10

10.0

VELOCITY (FPS)

1.0

100.0

1

23

Sierra Instruments Innova-Switch™ Instruction Manual

4.3 CALIBRATION – FLOW

**IMPORTANT**

FOR OPTIMUM OPERATION, CALIBRATION MUST BE ACCOMPLISHED AT

ACTUAL PROCESS TEMPERATURE AND PRESSURE CONDITIONS IN GASES
AND AT ACTUAL PROCESS TEMPERATURE CONDITIONS IN LIQUIDS.

See Figures 8.0 and 9.0 for location of potentiometers and LEDS on electronics PCB.

4.3.1 CALIBRATION PROCEDURE FOR FLOW SWITCHES

1. Remove the instrument enclosure lid by turning ccw.

2. Apply power to FS4200. Allow 10 minute warm-up.

3. Ensure that the pipeline is filled with fluid and at no or minimum flow.

4. Set the trip adjust pot to zero fully counterclockwise (fully ccw).

5. Adjust the zero adjust pot so that the Red LED just does illuminate. This is a 25 turn pot. If the
Green LED is on, turn the pot ccw. If the Red LED is on, turn the pot clockwise (cw).

6. Toggle the zero adjust pot back and forth until the switching point is well defined. Leave the Red
LED illuminated.

7. Adjust the liquid or gas flow to maximum velocity. Insure that the flow is homogenous, constant
and free of bubbles if a liquid.

The flow rate (maximum) should be at least 5 fps (Hydrocarbons), 2.5 fps (water), or 500 fps
(gas/air) if possible for best calibration. It is possible to achieve a 5 fps set point in water if a
span of 7 fps can be achieved.

TO ENSURE ACCURATE CALIBRATION AND AVOID SET POINT DRIFT, IT IS
IMPERATIVE THAT A MINIMUM OF 10 MINUTE WAIT BE OBSERVED AFTER POWER IS
APPLIED TO ALLOW THE SENSOR TO WARM-UP TO THE AMBIENT FLUID
TEMPERATURE.

LIKEWISE, WHEN ADJUSTING THE ZERO, SPAN, AND SET POINT POTS, A
MINIMUM OF 30 SECONDS SHOULD BE OBSERVED TO ALLOW FOR STABILIZATION
OF TEMPERATURE.

8. Set the trip adjust pot to 100 (fully cw).

9. Adjust the span adjust pot so that the Green LED just does illuminate. This is a 25 turn pot.
If the Green LED is on, turn the pot cw. If the Red LED is on, turn the pot ccw.

10. Toggle the span adjust pot back and forth until the switching point is well defined. Leave the
Green LED illuminated.

11. If the switch is to be used for flow - no flow, set the trip adjust pot to 50 and go to step 14. (Note:
This adjustment can be set for tripping points between 10% and 90% of the span from no flow to
max flow).

12. A more exact flow rate setting may be made by establishing the flow at the desired rate with a
separate flow meter and proceeding to step 13, to establish the trip point.

13. Adjust the trip adjust pot to obtain a trip as exhibited by an LED illumination. If a trip on

**NOTE**

24

Sierra Instruments Innova-Switch™ Instruction Manual

decreasing flow is desired set for Red LED illumination. If a trip on increasing flow is desired set
for Green LED illumination.

14. Verify that the switch will reset by returning the actual product flow to the maximum or minimum
flow rates.

5.0 OPERATION AND CALIBRATION OF THE INNOVA-SWITCH™ 615 SERIES SWITCH
FOR POINT LEVEL

5.1 PRE-OPERATIONAL CHECK

The switch is installed and the product level is below sensor level (dry), the following

procedure can be used to verify preliminary operation.

1. Remove the instrument enclosure cover by turning counter clockwise to expose the

LS3200 Switch electronics.

2. Turn on power at its source.

3. Observe that either the red or green LED comes on.

4. If neither lamp illuminates refer to the trouble shooting Section, 6.2.

5.2 L.E.D. AND RELAY STATUS LOGIC (FAIL-SAFE)

5.2.1 The L.E.D.s (Red and Green) are an indication of the sensors status (ie. dry or wet) and are
not affected by the position of the fail-safe jumper J-2. The fail-safe jumper J-2 changes the
relay activation status allowing the user to select the fail-safe power off condition most
appropriate to the application. Refer to the tables below that show the logic conditions
between the sensors, L.E.D. lights, relay coil and contacts for each position of the fail-safe
jumper J-2.

5.2.2 NORMAL OPERATION (AS SET AT FACTORY)

The switch comes configured from the factory with the following operation with the J-2 jumper

in the B (2-3) position. (Refer to Figure 8.0.)

RELAY
RED GREEN RELAY CONTACT
SENSOR STATUS LED LED COIL STATUS STATUS

Dry, or Lower Thermal o NC
Dispersion Fluid ON OFF Activated

(ie. hydrocarbons) o NO

Wet, or Higher Thermal o NC
Dispersion Fluid OFF ON Deactivated

(ie. water) o NO

APPLICATIONS

25

Sierra Instruments Innova-Switch™ Instruction Manual

5.2.3 ALTERNATE OPERATION (FIELD SELECTABLE)

The relay logic may be reversed by moving the J-2 jumper to position A(1-2). (Refer to

Figure 8.0.)

RELAY
RED GREEN RELAY CONTACT
SENSOR STATUS LED LED COIL STATUS STATUS

o NC
Dry, or Lower Thermal ON OFF Deactivated
Dispersion Fluid o NO
(ie. hydrocarbons)
o NC
Wet, or Higher Thermal OFF ON Activated
Dispersion Fluid o NO

(ie. water)

FIGURE 8.0 INNOVA-SWITCH™ ELECTRONICS
(MTF800.FCW/.DWG)

26

Sierra Instruments Innova-Switch™ Instruction Manual

5.3 CALIBRATION – LEVEL

**IMPORTANT**

FOR OPTIMUM OPERATION CALIBRATION MUST BE ACCOMPLISHED AT
ACTUAL PROCESS TEMPERATURE CONDITIONS.

SENSOR
SIGNAL (mV)

DRAWING FILE: MTF1000.DWG/.fcw

FIGURE 10.0 INNOVA-SWITCH MODEL 615 POINT LEVEL SWITCH CALIBRATION
REFERENCE DRAWING
(MTF1000.DWG/.FCW)

DECREASING THERMAL DISPERSION

COVER GAS

VACUUM

LED LIGHTS

OR AIR

ZERO ADJUSTMENT

GREEN

R

HYDROCARBON LI QUIDS

0 100

(R10)

TRIP POINT

E

D

RED

FUSE

H2

H1

N2

L1

N1

GND

U3

Q1

U1

50

LS32CS
LS32CN
LS32NX
LS32SK

LIQUID METALS

TRIP POINT POT SCALE

SPAN ADJUSTMENT

(R13)

FAILSAFE JUMPER (J2)

J2

AB

GREEN

RELAY

Q6

TP1

T1

R10

TP3

U4

<----->

WATER

U2

TP4

R13

J1

50

0

TP2

FLUIDS

0.0

R15

100

27

Sierra Instruments Innova-Switch™ Instruction Manual

5.3 CALIBRATION - LEVEL

Using Figure 10.0 as a location guide adjust the system as follows:

1. Remove the instrument enclosure lid by turning ccw.

2. Apply power to the unit. Allow 10 minute warm-up.

3. For optimum calibration results, wet sensor and drain but do not dry.

4. Ensure that the tank liquid level is below the probe sensor tips.

5. Set the trip adjust pot to zero, fully counterclockwise (fully ccw).

TO ENSURE ACCURATE CALIBRATION AND AVOID SET POINT DRIFT, IT IS
IMPERATIVE THAT A MINIMUM OF 10 MINUTE WAIT BE OBSERVED AFTER POWER IS
APPLIED TO ALLOW THE SENSOR TO WARM-UP TO THE AMBIENT FLUID
TEMPERATURE.

LIKEWISE, WHEN ADJUSTING THE ZERO, SPAN, AND SET POINT POTS, A
MINIMUM OF 30 SECONDS SHOULD BE OBSERVED TO ALLOW FOR STABILIZATION
OF TEMPERATURE.

6. Adjust the zero adjust pot so that the Red LED just does illuminate. This is a 25 turn

pot. If the green LED is on, turn the pot counterclockwise (ccw). If red LED is on, turn
the pot clockwise (cw).

7. Toggle the zero adjust pot back and forth until the switching point is well defined. Leave

the Red LED illuminated.

8. Raise the level of the liquid to be detected until the probe/sensor tips are submerged

and wet (covered).

9. Set the trip adjust pot to 100 (fully cw).

10. Adjust the span adjust pot so that the Green LED just does illuminate. This is a 25 turn

pot. If the Green LED is on, turn the pot cw. If the Red LED is on, turn the pot ccw.

11. Toggle the span adjust pot back and forth until the switching point is well defined. Leave

the green LED illuminated.

12. Adjust the trip adjust pot to 80 and the calibration is complete. Setting this pot to 80

gives an approximate equal trip time from wet to dry and from dry to wet. Setting this pot
closer to zero will speed up dry to wet trip time and slow down wet to dry trip time.
Setting this pot closer to 100 will slow down the dry to wet trip time and speed up wet to
dry trip time.

28

Sierra Instruments Innova-Switch™ Instruction Manual

6.0 MAINTENANCE AND TROUBLE SHOOTING

6.1 CLEANING

The switch can be cleaned by soaking, spraying solvents or detergent-and-water onto the

sensor tubes, or by ultrasonic cleaning.

Lime deposits can be safely removed by soaking in 20% hydrochloric acid. Warming to

150°F is permissible to speed this process. The acid must be thoroughly rinsed off once
cleaned.

For unusual cleaning problems, call Sierra and determine the exact materials of construction

and chemical compatibility before using strong acids or unusual cleansers.

**IMPORTANT**

DO NOT SANDBLAST OR ABRASIVE CLEAN THE SENSING PROBES.

THE SENSING PROBES COULD BE DAMAGED BY ABRASIVES.

6.2 Trouble Shooting

6.2.1 Power and Continuity Verification

1. Turn power off to the Innova-Switch™.

2. Remove the instrument enclosure cover (ccw).

3. Loosen the two PC captive screws (see Figure 4.0 for location).

4. Unplug the PC board from the instrument enclosure by pulling straight out on the
transformer.

5. Reapply power and verify correct voltage at pins 7 (positive for DC) and 8 (negative for
DC) of TBB (see Figures 6.0 or 7.0).

6. If voltage is correct, verify the fuse (F1) on the PC board is not blown (See Figure 8.0). If
fuse is not blown proceed to 6.2.2.

7. If fuse is blown replace with appropriate value (See 7.0 Specification).

29

Sierra Instruments Innova-Switch™ Instruction Manual

6.2.2 SENSOR/ELECTRONICS FUNCTIONALITY VERIFICATION

1. Turn power off to Innova-Switch™.

2. Allow a 5 minute cool down.

3. Measure the resistance of each RTD at pins 1 and 6 of TBA (see Figure 6.0 or 7.0) for
the hot RTD and pins 3 and 5 of TBA for the cold RTD. These resistances should be
110 ± 10 ohms (with sensors at approximately 70°F) and within 5% of each other in
value.

4. Measure the insulation resistance between pin 1 of TBA and the case of the Innova­Switch™. It should be greater than 20 megohms.

5. If the Innova-Switch™ sensor assembly resistances are not as specified above, the
switch sensor assembly must be replaced.

5. If the Innova-Switch™ sensor assembly resistances are as specified, the Innova­Switch™ PC electronic board must be replaced.

6.2.3 SET POINT DRIFT

TO ENSURE ACCURATE CALIBRATION AND AVOID SET POINT DRIFT, IT IS
IMPERATIVE THAT A MINIMUM OF 10 MINUTE WAIT BE OBSERVED AFTER POWER IS
APPLIED TO ALLOW THE SENSOR TO WARM-UP TO THE AMBIENT FLUID
TEMPERATURE.

LIKEWISE, WHEN ADJUSTING THE ZERO, SPAN, AND SET POINT POTS, A
MINIMUM OF 30 SECONDS SHOULD BE OBSERVED TO ALLOW FOR STABILIZATION
OF TEMPERATURE.

SPECIAL NOTICE

The electronic assemblies contained in the Innova-Switch™ models are configured
for specific voltages and have specific modifications to accommodate the various
agency approvals. When ordering spare electronics, replacements, or exchanges
in the field please ensure you identify the specific configuration you have by noting
the boxes marked on the transformer configuration tag.

30

Sierra Instruments Innova-Switch™ Instruction Manual

7.0 SPECIFICATIONS
TYPE: Thermal Differential-Dual RTD Sensors
PROCESS CONNECTIONS: 0.75” (19.05mm) MNPT Standard, 0.5"(12.7mm), 1" (25.4mm)

MNPT, and various flanges optional.

INSERTION LENGTH: Two inch (50.8mm) Standard, (shorter 0.5 inch (12.7mm) and

longer to 120 inch (3048mm) optional).

CONSTRUCTION MATERIALS: Wetted parts are 316L SS welded construction (alternate

materials for corrosive environments available as options.
Consult factory.)

AGENCY INSTRUMENT RATINGS: CSA Explosion Proof: (CS series) T4A
Class I, Group B, C, and D

Class II, Group E, F, and G
CENELEC/Explosion Proof (CN Series):
EEx d IIC T4(Akron Electric Enclosure)
EEx d IIB T4(Killark Enclosure)
CE: EMC Directive: 89/336/EEC (CE Option)

OPERATING TEMPERATURE: Process: -70°C to + 200°C (-100°F to +390°F) standard
(to + 600°C (+1000°F) optional

Electronics: -40°C to +60°C (-40°F to +140°F)

PRESSURE RATED: To 3000 psig (20.4 MPa)
RANGE Gaseous Mass Flow: 0.1 to 500 fps

Liquid Mass Flow: 0.01 to 5 fps (Hydrocarbons) 2.5 fps (water)

REPEATABILITY: ± 1% of Set Point or ± 1/32 inch (±.8mm)
TIME RESPONSE: 0.5 to 10 seconds no-flow (dry) to flow (wet) and 2 to 60

seconds flow (wet) to no-flow (dry) (application dependent)

INPUT POWER: 110 Vac, 50/60HZ standard. (220 Vac, 50/60HZ, 24 Vdc, or 24

Vac optional); 3.1w. maximum.

SIERRA PART NO.
FUSE REQUIREMENTS (F1): CSA/FM

CENELEC
110 Vac: 1/4 amp 101603 101605
220 Vac: 1/4 amp 101603 101605
24 Vdc: 1/4 amp 101603 101605

OUTPUT: 5A, 250 VAC, DPDT Standard (Optional 10A, 250 Vac SPDT)
5A 30 VDC

STABILITY: Temperature compensated over entire range.

31

Sierra Instruments Innova-Switch™ Instruction Manual

8.0 WARRANTY AND SERVICE

8.1 Warranty

Sierra Instruments, Inc. warranties Innova-Switches for a period of two years from the date of

shipment and will repair or replace this product in the event of a defect in materials or
workmanship. To have a product repaired, it should be returned at customer's expense, after
obtaining return authorization as described in Section 8.2, to a repair facility designated by
Sierra and, after repair, Sierra will prepay transportation to return the product to the
customer. This limited warranty only covers failures due to defects in materials or
workmanship which occur during normal use.

LIMITS AND EXCLUSIONS

SIERRA INSTRUMETNS SHALL NOT BE LIABLE FOR INCIDENTAL OR

CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
LOSS OF USE, LOSS OF SALES, OR INCONVENIENCE) RESULTING
FROM THE USE OF THESE PRODUCTS, OR ARISING OUT OF ANY
BREACH OF THIS WARRANTY. EXCEPT AS SET FORTH ABOVE,
THERE ARE NO EXPRESS OR IMPLIED WARRANTIES OR WARRANTIES
OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.

8.2 SERVICE

To receive prompt service call Sierra’s Customer Service Dept. [phone] or toll free 1-

800-922-0083. A representative will assist you in determining if the unit must be returned to
the factory. A Return Authorization Number (RAN) will be given and should clearly mark the
outside of the returning package. Prior to calling, be sure to have the model number and

serial number information for quick identification and service response.

32

Sierra Instruments Innova-Switch™ Instruction Manual

9.0 APPENDIX

9.1 VOLUME FLOW CONVERSION CHART

Convert known units to cubic feet per second (CFPS) or gallons per minute (GPM)
for use with Chart A.2

TO CONVERT FROM TO MULTIPLY BY

Gallons Per Minute (GPM) Cubic Feet Per 2.228 E-03

Per Second (CFPS)
Gallons Per Day (GPD) CFPS 1.547 E-06
Barrels Per Day (BPD) CFPS 6.531 E-5
Cubic Ft. Per Minute (CFPM) CFPS 1.667 E-02
Cubic In. Per Minute (CIPM) CFPS 9.645 E-06
Milliliters Per Minute (MLPM) CFPS 5.886 E-07
Milliliters Per Second (MLPS) CFPS 3.531 E-05
Milliliters Per Hour (MLPH) CPFS 9.810 E-09
Liters Per Day (LPD) CPFS 4.087 E-07
Gallons Per Day (GPD) GPM 6.944 E-04
Barrels Per Day (BPD) GPM 2.931 E-02
Cubic Ft. Per Second (CFPS) GPM 4.488 E+02
Cubic Ft. Per Minute (CFPM) GPM 7.481
Cubic In. Per Minute (CIPM) GPM 4.329 E-03
Milliliters Per Minute (MLPM) GPM 2.642 E-04
Milliliters Per Second (MLPS) GPM 4.403 E-06
Milliliters Per Hour (MLPH) GPM 1.585 E-02
Liters Per Day (LPD) GPM 1.835 E-04

33

Sierra Instruments Innova-Switch™ Instruction Manual

N

9.2 FLOW CONVERSION CHART

MILLILITERS

10.0

CC/MIN

PER MINUTE

8.0

9.0

6.0

7.0

5.0

4.0

3.0

2.0

.61

.50

.40

.30

.20

.10

.090

.080

CU IN/MIN

PER MINUTE

CUBIC INCHES

.00008

.0003

.00034

.00020

.00010

.00009

.00007

.00006

.00005

-7

CUBIC FEET

PER MINUTE

CU FT/MIN

-7

-7

-7

-7

-7

-7

-7

-7

56.8X10

50.0X10

40.0X10

30.0X10

20.0X10

10.0X10

9.0X10

8.0X10

7.0X10

CUBIC FEET

PER SECOND

CU FT/SEC

.0905

.08

.06

.07

.05

.04

.03

.02

BARRELLS

PER DAY

BPD

3.82

3.0

2.0

.90

.80

.70

1.00

.60

GALLONS

PER DAY

GPD

1.0

.070

.061

.00004

.000034

-7

5.68X10

.010

.00905

.50

.382

.00264

.0020

.00090

.0010

.00080

.00070

.00060

.00050

.00040

.00030

.000264

FLOW CONVERSION CHART

GALLONS

GPM

PER MINUTE

.050

3.0

4.00

.040

100

.030

2.00

908070

3.00

2.0

.020

1.44

60

.0167

1.0

THIS LINE CHART PROVIDES AN EASY METHOD FOR CONVERTING UNITS OF VOLUME FLOW. SIMPLY DRAW A LINE PERPENDICULAR TO THE

SCALE LINES THROUGH A VALUE OF FLOW AND READ THE EQUIVALENT VALUE ON ANY OF THE OTHER SCALES.

9.00

.100

6.0

8.00

.090

5.0

7.00

300

.080

14.4

LPD

LITERS

PER DAY

600

CC/HR

PER HOUR

MILLILITERS

.167

MILLILITERS

PER SECOND

CC/SEC

10.0

ILLILITERS

PER MINUTE

CC/MI

500

9.0

8.0

10.00

400

7.0

.070

4.0

6.00

5.00

200

.060

34

Sierra Instruments Innova-Switch™ Instruction Manual

9.3 FLOW OF WATER THROUGH SCHEDULE 40 STEEL PIPE

35

Sierra Instruments Innova-Switch™ Instruction Manual

10.0 OPTIONS

10.1 LIVETAP (LT)

36

Sierra Instruments Innova-Switch™ Instruction Manual

10.2 VARIABLE INSERTION (VI)

37

Sierra Instruments Innova-Switch™ Instruction Manual

10.3 SANITARY (3A1)

Innova-Switch™ Sanitary

Sanitary Switch Operating Instructions

Installation

Sierra’s Sanitary Switch Option is to be installed
using industry standard piping practices. Make sure
that you have selected the proper gasket and clamp
designed for your pressure, temperature and process
fluid.

*Shown above with optional Sanitary Tee

38

Sierra Instruments Innova-Switch™ Instruction Manual

10.4 LOW FLOW (LF)

Innova-Switch Low Flow Sensor

• Developed for low flow gas and liquid applications where reliability and durability are mandatory

• Very low internal volume so that sample times are very short and sample system response

remains quick

• All Welded Stainless Steel Construction

• Standard operating temperature range of -100°F to 390°F

• ¼ inch FNPT process ports that can easily be adapted to tubing by using standard fittings

39