Omega Products FLSC790-P Installation Manual

User’s Guide

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FLSC790-P

Pulse Output Module

For use with FTB790 Series

Turbine Meters with Display Electronics

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http://www.omega.com [e-mail]

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is constantly pursuing certification of its products to the European New Approach Directives. OMEGA will add
the CE mark to every appropriate device upon certification.

The information contained in this document is believed to be correct, but OMEGA Engineering, Inc. accepts no liability for any
errors it contains, and reserves the right to alter specifications without notice.

WARNING: These products are not designed for use in, and should not be used for, patient-connected applications.

TABLE OF CONTENTS

Introduction ................................................1

Installation and Wiring .............................. 1

Technical Specifications ............................ 2

Typical Wiring ............................................3

Warranty/Disclaimer .................................. 5

Return Requests/Inquiries .......................... 5

INTRODUCTION

Caution: This Pulse Output Module is not

FM Approved. Therefore, use of this
module with an approved metering
system, voids FM Approval.

This module is designed to be used only with
FTB790 Series Turbine Meters. More spe­cifically, turbine housings with the follow­ing models: FTB791, FTB792, FTB793,
FTB794, and FTB795.

Combine the Pulse Access Module with an
FTB790 Series T urbine Electronics to create
a low-cost flow sensor with both local read­out and pulse output which interfaces with
various counters, controllers, and compatible
process equipment.

The pulse output of this module provides an
unscaled, amplified, digital signal capable of
transmission up to 5,000 ft. (1,524m) with­out additional signal conditioning or ampli­fication devices.

The Pulse Output Module comes complete,
ready to install, with a circuit assembly,
coverplate assembly , and 10 ft. (3m) of cable.

INSTALLATION & WIRING

T o install this module, follow the instructions
given below.

1. Remove the back coverplate from the
turbine housing.

2. Remove the display electronics from the
front of the turbine.

NOTE: If you are installing more than one

Pulse Access Module a t a time, take care
to keep the proper electronics paired with
the original turbine.

+–

J2

J6

+–

3. The Pulse Access Module connects to a
10-pin connector located on the back side
of the computer electronics next to the
negative battery connectors. The 10-pin
connector is sealed with a clear plastic
sealant that must be carefully pried out
with a small sharp tool inserted gently
at the edges.

4. Remove the backing from the double-sided
tape on the module’s PC board.

5. Carefully align the top pin on the PC
board with the J2 position on the 10-pin
connector and gently press the PC board
into position between the batteries. The
bottom pin will align with the J6 position.

6. Guide the loose ends of the wires from the
PC board through the housing’s cavity to
the back side of the turbine.

7. Install the display electronics to the front
side of the turbine and tighten the four
screws snugly.

Terminal

Block

White

White

J2

Pulse Out

Black

J6

Common

10-pin
Connector

8. Connect the loose ends of the wires to
the terminal block on the inside of the
back coverplate provided with this mod­ule. Connect white (pulse out) to white
and black (common) to black.

Caution: Do not connect the red wire. This

module does not require connection of the
red wire. Use of this wire will damage your
equipment.

Signal

Customer
Interfacing
Equipment

Black

Common

Internal External

1

9. Install the back coverplate. Make sure
the O-ring is securely seated and no
wires are pinched.

10. Connect to the user interface device ac­cording to manufacturer’s instructions.

11. Refer to the etched K-factor on the tur­bine. See Turbine Manual for location
of K-factor.

NOTE: Please remember to supply a 820

ohm (minimum) Pull Up Resistor if the
interface device does not have one. Ref­erence illustration above as necessary.

TECHNICAL SPECIFICATIONS

The Pulse Output Module with a standard FTB790

Series Turbine Meter with Display Electronics

which are sold seperately.

Dimensions (FLSC790-P)

Frequency Range: 0 to 750 Hz
Housing Material: Nylon 6/6
Strain Relief: Hubble-PG7
Coverplate Thread: Female 1/2-20 UNF-2B
Cable: Belden 9363
Std. Cable Length: 10 ft. (3m)
Temperature: +14° to +140°F

(–10° to +60°C)

Open Collector
Currect Sinking Output

Applied Voltag e: 0 to 60 Volts DC
Connection: Two Wire
Allowable Current: Up to 100 mA
Output: Square Wave Pulse.

Amplitude same as
supplied voltage.

NOTE: Display electronics, which work in

conjunction with this module, continue
to be powered with batteries.

➤

3.25 in. (8.26 cm)

➤

1.63 in.

(4.14 cm)

0.8 in.

(2.0 cm)

0.25 in. (.64 cm)

➤

➤

1.0 in.

(2.54 cm)

➤

➤

➤

➤

➤

➤

2.0 in.

(5.1 cm)

➤

➤

2

TYPICAL WIRING

Wiring to
DPF700 Series
Panel Meter

For connecting to the
DPF700 meter, attach the
white wire to Pin 2 on TB2,
“SIG IN”. The black wire
goes to Pin 3 on TB2, “SIG
GND”. Set the S1 switches
for 12.4 VDC OUT. No
connection is made to
“EXCITATION OUT”; the
white wire is pulled up to
the 12.4 VDC excitation
inside of the DPF700.

Wiring to
DPF70 Series
Panel Meter

(DPF75, DPF76,
DPF78)

For connecting to DPF70
Series panel meter, connect
white wire to Pin 5 (A input),
the black wire to Pin 8 (DC
Ground), and connect a 820
ohm (minimum) pull up
resistor between Pin 5 and
Pin 7 (DC Excitation)

3

NOTES

4

MADE

IN

USA

WARRANTY / DISCLAIMER

OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a
period of 13 months from date of purchase. OMEGA W arranty adds an additional one (1) month grace per iod
to the normal one (1) year product warranty to cover handling and shipping time . This ensures that OMEGA’s
customers receive maximum coverage on each product.

If the unit malfunctions, it must be returned to the factory for evaluation. OMEGA’s Customer Service De­partment will issue an Authorized Return (AR) number immediately upon phone or written request. Upon
examination by OMEGA, if the unit is found to be defective, it will be repaired or replaced at no charge.
OMEGA’s WARRANTY does not apply to defects resulting from any action of the purchaser, including but
not limited to mishandling, improper interfacing, operation outside of design limits, improper repair, or un­authorized modification. This WARRANTY is VOID if the unit shows evidence of having been tampered
with or shows evidence of having been damaged as a result of excessive corrosion; or current, heat, moisture
or vibration; improper specification; misapplication; misuse or other operating conditions outside of OMEGA’s
control. Components which wear are not warranted, including but not limited to contact points, fuses, and triacs.

OMEGA is pleased to offer suggestions on the use of its various products. However, OMEGA neither
assumes responsibility for any omissions or errors not assumes liability for any damages that result
from the use of its products in accordance with information provided by OMEGA, either verbal or
written. OMEGA warrants only that the parts manufactured by it will be as specified and free of
defects. OMEGA MAKES NO OTHER WARRANTIES OR REPRESENTATIONS OF ANY KIND
WHATSOEVER, EXPRESS OR IMPLIED, EXCEPT THAT OF TITLE, AND ALL IMPLIED WAR­RANTIES INCLUDING ANY WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PAR­TICULAR PURPOSE ARE HEREBY DISCLAIMED. LIMITATION OF LIABILITY: The remedies
of purchaser set forth herein are e xclusiv e, and the total liability of OMEGA with respect to this order,
whether based on contract, warranty, negligence, indemnification, strict liability or otherwise, shall
not exceed the purchase price of the component upon which liability is based. In no event shall OMEGA
be liable for consequential, incidental or special damages.

CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1) as a “Basic
Component” under 10 CFR 21 (NRC), used in or with any nuclear installation or activity; or (2) in medical appli­cations or used on humans. Should any Product(s) be used in or with any nuclear installation or acti vity, medical
application, used on humans, or misused in any way, OMEGA assumes no r esponsibility as set forth in our basic
W ARRANTY/DISCLAIMER language, and, additionall y, purchaser will indemnify OMEGA and hold OMEGA
harmless from any liability or damage whatsoever arising out of the use of the Product(s) in such a manner.

RETURN REQUESTS / INQUIRIES

Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department. BEFORE
RETURNING ANY PRODUCT(S) TO OMEGA, PURCHASER MUST OBTAIN AN AUTHORIZED RE­TURN (AR) NUMBER FROM OMEGA’S CUSTOMER SERVICE DEP ARTMENT (IN ORDER TO AVOID
PROCESSING DELAYS). The assigned AR number should then be marked on the outside of the return
package and on any correspondence. The purchaser is responsible for shipping charges, freight, insurance
and proper packaging to prevent breakage in transit.

FOR WARRANTY RETURNS, please have the
following information available BEFORE contact­ing OMEGA:

1. Purchase Order number under which the prod­uct was PURCHASED,

2. Model and serial number of the product under
warranty, and

3. Repair instructions and/or specific problems
relative to the product.

OMEGA’s policy is to make running changes, not model changes, whenever an improvement is possible. This affords our
customers the latest in technology and engineering.

OMEGA is a registered trademark of OMEGA ENGINEERING, INC.
© Copyright 1998 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied, photocopied,

reproduced, translated, or reduced to any electronic medium or machine-readable form, in whole or in part, without the
prior written consent of OMEGA ENGINEERING, INC.

FOR NON-WARRANTY RETURNS, consult
OMEGA for current repair charges. Have the fol­lowing information available BEFORE contacting
OMEGA:

1. Purchase Order number to cover the COST of
the repair,

2. Model and serial number of the product, and

3. Repair instructions and/or specific problems
relative to the product.

5

Where Do I Find Everything I Need for

Process Measurement and Control?

OMEGA… Of Course!

TEMPERATURE

✓

Thermocouple, RTD & Thermistor Probes, Connectors, Panels & Assemblies

✓

Wire: Thermocouple, RTD & Thermistor

✓

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✓

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✓

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✓

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✓

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✓

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FLOW/LEVEL

✓

Rotameters, Gas Mass Flowmeters & Flow Computers

✓

Air Velocity Indicators

✓

Turbine/Paddlewheel Systems

✓

Totalizers & Batch Controllers

pH/CONDUCTIVITY

✓

pH Electrodes, Testers & Accessories

✓

Benchtop/Laboratory Meters

✓

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✓

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DATA ACQUISITION

✓

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✓

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✓

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✓

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✓

Recorders, Printers & Plotters

HEATERS

✓

Heating Cable

✓

Cartridge & Strip Heaters

✓

Immersion & Band Heaters

✓

Flexible Heaters

✓

Laboratory Heaters

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MONITORING AND CONTROL

✓

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✓

Refractometers

✓

Pumps & Tubing

✓

Air, Soil & Water Monitors

✓

Industrial Water & Waste water Treatment

✓

pH, Conductivity & Dissolved Oxygen Instruments

M3215 1/99