Omega FMA1001A-MA, FMA1001A-MA-HT, FMA1001B-MA, FMA1001B-MA-HT, FMA1001R-MA User Manual

TM

User’s Guide

WITH REMOTE

SENSOR PROBE

FMA100XR

TOP MOUNT

FMA100XA

BACK MOUNT

FMA100XB

Shop online at

omega.com

e-mail: [e-mail]

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Air Velocity/Temperature
Transmitter and Indicator

FMA1000 SERIES

omega.com [e-mail]

Servicing North America:

U.S.A. Omega Engineering, Inc.
Headquarters: Toll-Free: 1-800-826-6342 (USA & Canada only)

Customer Service: 1-800-622-2378 (USA & Canada only)
Engineering Service: 1-800-872-9436 (USA & Canada only)
Tel: [phone] Fax: [phone]
e-mail: [e-mail]

For Other Locations Visit omega.com/worldwide

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

Air Velocity/Temperature Transmitter and Indicator

Table of Contents

Section Page

Section 1 - Package Insection ............................................................................. 1-1

Included Items ................................................................................................ 1-1

Section 2 - Introduction ...................................................................................... 2-1

Introduction .................................................................................................... 2-1

Important Considerations Before Installation ..........................................2-2

Section 3 - Installation ........................................................................................ 3-1

Section 4 - Main Operations .............................................................................. 4-1

Section 5 - PC Interface and Application ........................................................ 5-1

Operation ........................................................................................................ 5-1

Maintenance ................................................................................................... 5-4

Calibration ...................................................................................................... 5-4

FMA1000 SERIES

Section 6 - Specifications .................................................................................... 6-1

i

FMA1000 SERIES
Air Velocity/Temperature Transmitter and Indicator

List of Figures

Figure Description Page

1 FMA1000 Transmitter with Fixed Probe Mount

and Right Angle Mount ................................................................... 3-3

2 FMA1000 Transmitter with a Remote Sensor Probe .................. 3-4

3 FMA1000 Transmitter General Dimensions ................................ 3-5

4 FMA1000 Transmitter Wall Mounting Holes .............................. 3-6

5 Functional Display Flow Chart ....................................................... 4-3

6 Main Window .................................................................................... 5-2

7 Typical Data File ................................................................................ 5-3

8 Settings Menu .................................................................................... 5-4

ii

Section 1 - Package Inspection

Remove the packing list and verify that you have received all your equipment.
If
you have any questions about the shipment, please call our Customer Service
Department at 1-800-622-2378 or 203-359-1660. We can also be reached on the
Internet at omega.com, e-mail: [e-mail]. When you receive the
shipment, inspect the container and equipment for any signs of damage. Note
any evidence of rough handling in transit. Immediately report any damage to
the shipping agent.

The carrier will not honor any damage claims unless all shipping material is
saved for inspection. After examining and removing contents, save packing
material and carton in the event reshipment is necessary.

Included Items

Package Inspection

NOTE:

1

The following items are supplied with the FMA1000 air velocity transmitter:

• FMA1000 air velocity/temperature transmitter

• 15 feet shielded Power/Output cable with 10 pin female mating connector
with 6 feet shielded USB cable with female mating connector

• Instruction Manual

• PC application program CD

The following items are optional accessories that can be ordered separately:

Model No. Description

PSR-24S Regulated +24 Vdc @ 400 mA power supply, screw

terminal

PSR-24L Regulated +24 Vdc @ 400 mA power supply, stripped

leads

1

SSLK-14-14 Compression Fitting,

1

T-FER-1/4

⁄4" PTFE Ferrules (10 per pack) for use with SSLK14-14

⁄4" tube OD, 1⁄4" NPT

TX8-100 8 conductor shielded cable, 24 AWG, 30m long

1-1

CAUTION & SAFETY INFORMATION

If the equipment is used in a manner not specified in this manual, the
protection provided by the equipment may be impaired.

The installation category is one (I).

The output terminals of this product are for use with equipments (Digital
meters, chart recorders, etc.) which have no accessible live parts. Such
equipment should comply with all the applicable safety requirements.

Avoid contact with Hazardous live parts.

Do not operate the equipment in flammable or explosive environments.

The equipment comes with a 4.6 m (15') shielded multi-conductor power/
output cable. This cable is an ten conductor 26 AWG stranded wire cable with
rating of 300 Vdc, 105ºC (221ºF) PVC insulation. It also comes with a 2m (6')
shielded USB + Four conductor cable.

Power must be disconnected before making any electrical connections.

The supply voltage to the equipment should not exceed 24 Vdc.

The recommended power supply should be VDE or UL approved. Rating of 15
to 24 Vdc @ 150 mA minimum power with overload protection, current limited
to 500 mA.

There is no user replaceable fuse in this product.

The FMA1000 series passed all the EMC standards (EN61326 Emissions &
EN61000 immunity) under normal mode of operation using the power/output
cable provided and an external DC power supply.

1-2

Section 2 - Introduction

The FMA1000 series industrial air velocity/temperature transmitter/indicator
measures and displays air velocity mass flow and air temperature of clean air
flows in ducts & pipes, while producing very little pressure drop in the flow
stream. The FMA1000 series can be used in research & development labs,
HVAC applications, and other manufacturing processes. The sensor design is
based on three RTD elements, one measures the air temperature and the other
two measure the air velocity. The air velocity is measured based on the heat
loss from the RTD velocity sensor as it cools down by the air flow.

The FMA1000 series offers many standard features such as dual display of
air velocity & temperature, two analog outputs corresponding to air velocity
& temperature, high & low voltage alarm outputs for air velocity, USB PC
interface with a Windows based PC interface software. The FMA1000 displays
the air velocity in feet per minute (FPM), meter per second (m/s), miles per
hour (MPH), and kilometer per hour (Km/h). The air temperature is displayed
in ºF & ºC.

The sensor probe is 12" long as standard. The 304 Stainless steel sensor tubing
is provided with inch marks for ease of insertion depths. The sensor probe
comes in four different versions as follows:

Introduction

2

• Fixed probe mount

• Right angle probe mount

• Remote probe

• Fixed short probe, 3.75" Long

2-1

2

Introduction

The following table shows all the air velocity/temperature transmitter model
numbers:

Model No. Velocity Range FPM (m/s) Probe Type Temperature Measurment Range

FMA1001A-* Fixed Probe -40 to 121°C (-40 to 250°F)
FMA1001A-*-HT -40 to 171°C (-40 to 340°F)

FMA1001B-* 0-1000 (0-5.1) Right Angle Probe -40 to 121°C (-40 to 250°F)
FMA1001B-*-HT -40 to 171°C (-40 to 340°F)

FMA1001R-* Remote Probe -40 to 121°C (-40 to 250°F)
FMA1001R-*-HT -40 to 171°C (-40 to 340°F)

FMA1002A-* Fixed Probe -40 to 121°C (-40 to 250°F)
FMA1002A-*-HT -40 to 171°C (-40 to 340°F)

FMA1002B-* 0-5000 (0-25.5) Right Angle Probe -40 to 121°C (-40 to 250°F)
FMA1002B-*-HT -40 to 171°C (-40 to 340°F)

FMA1002R-* Remote Probe -40 to 121°C (-40 to 250°F)
FMA1002R-*-HT -40 to 171°C (-40 to 340°F)

FMA1003A-* Fixed Probe -40 to 121°C (-40 to 250°F)
FMA1003A-*-HT -40 to 171°C (-40 to 340°F)

FMA1003B-* 0-10,000 (0-50.8) Right Angle Probe -40 to 121°C (-40 to 250°F)
FMA1003B-*-HT -40 to 171°C (-40 to 340°F)

FMA1003R-* Remote Probe -40 to 121°C (-40 to 250°F)
FMA1003R-*-HT -40 to 171°C (-40 to 340°F)

FMA1004A-* Fixed Probe -40 to 121°C (-40 to 250°F)
FMA1004A-*-HT -40 to 171°C (-40 to 340°F)

FMA1004B-* 0-500 (0-2.54) Right Angle Probe -40 to 121°C (-40 to 250°F)
FMA1004B-*-HT -40 to 171°C (-40 to 340°F)

FMA1004R-* Remote Probe -40 to 121°C (-40 to 250°F)
FMA1004R-*-HT -40 to 171°C (-40 to 340°F)

FMA1005A-* Fixed Probe -40 to 121°C (-40 to 250°F)
FMA1005A-*-HT -40 to 171°C (-40 to 340°F)

FMA1005B-* 0-2000 (0-10.16) Right Angle Probe -40 to 121°C (-40 to 250°F)
FMA1005B-*-HT -40 to 171°C (-40 to 340°F)

FMA1005R-* Remote Probe -40 to 121°C (-40 to 250°F)
FMA1005R-*-HT -40 to 171°C (-40 to 340°F)

FMA1006A-* Fixed Probe -40 to 121°C (-40 to 250°F)
FMA1006A-*-HT -40 to 171°C (-40 to 340°F)

FMA1006B-* 0-12,000 (0-60.9) Right Angle Probe -40 to 121°C (-40 to 250°F)
FMA1006B-*-HT -40 to 171°C (-40 to 340°F)

FMA1006R-* Remote Probe -40 to 121°C (-40 to 250°F)
FMA1006R-*-HT -40 to 171°C (-40 to 340°F)

* - Specify analog output for air velocity

-MA, 4-20 mA output

-V1, 0-5 Vdc output

-V2, 0-10 Vdc output
The air temperature analog output is 0-5 Vdc.

2-2

Important Considerations Before Installation

The FMA1000 air velocity transmitter is not explosion proof, nor is it Intrinsically
safe. Do not use for flammable or hazardous gases, or in Hazardous areas.

The FMA1000 series air velocity transmitter is intended for use with clean
air or Nitrogen ONLY. Do not use with other gases, as it will produce an
un-calibrated and non-linear display measurement and analog output. In
addition, air carrying dust or oil (such as found in blower/compressor systems
that utilize oil) can lead to coating of the sensor and thus inaccurate readings.
Refer to the Maintenance section for information on cleaning the sensor.

The FMA1000 is a bi-directional device, meaning the flow in the forward or
reverse direction provides the same readings. The FMA1000 can be mounted
vertically or horizontally without shift in calibration.

NOTE:

Introduction

2

2-3

3

Installation

Section 3 - Installation

1. Remove the protective cap from the sensor tip.

2. Run a length of straight pipe before and after the flow sensor probe.

The amount of upstream straight pipe required depends on the type of
obstruction which is immediately upstream of the flow sensor. See Table 1
for specific requirements. Downstream of the flow sensor, in all situations,
run 5 diameters of straight pipe regardless of the downstream obstruction.

3. Align the sensor probe with the air flow. Make sure the air flow is

perpendicular to the sensor window. The score line on the sensor tubing
is another way of aligning the sensor to the flow stream. The score line
starts from the center of the sensor window and as a result it can be aligned
properly.

4. One way of installing the sensor probe into a flow stream is to utilize a

compression fitting such as Omega’s SSLK-14-14 stainless steel compression
fitting with Teflon ferrule, which allows adjustment of the insertion depth of
the probe.

5. Connect the 15 feet shielded Power/Output cable to the transmitter’s 10-pin

male mating connector. Follow the wiring information below:

Power/ Output Cable Wire Connection

Red + Power Input

Black - Power Input (Common Ground)

White Velocity Analog Output referenced to Common Ground

Green Temperature Analog Output referenced to Common Ground

Brown High Alarm voltage output-Velocity

Blue Low Alarm voltage output-Velocity

Shield Earth Ground

USB Connector PC USB Port

Power/output Cable Wiring

3-1

NOTES:

Installation

3

3-2

3

Installation

Recommended

T ypical Piping Remarks

A

A

Straight Pipe

Length "A "

Withou t

V anes

15D 15 DC losed Branch

With

Va ne s

15D
15D

15D
15D

Elbow . Te e,
Branch Pipe

Long-radius
bend s

Elbow
Long-radius
bend s

Elbow
Long-radius
bend s

A

A

A

A

A

A

20D 15 D

25D 15D Elbow , 2 planes

25D 15 D

30D
25D

40D
35D

20D 15 DC ontracting Pip e

Figure 1 shows the FMA1000 transmitter with fixed probe mount and right
angle mount.

Figure 2 shows the transmitter with a remote sensor probe connecting with 15
feet of flexible cable.

Figure 3 shows the transmitter’s general dimensions.

Figure 4 shows the mounting holes dimension for mounting of the transmitter

3-3

case on a wall.

V aried Section Va lves Fittings in Tw o Planes All Fittings in Same Plan e

A

A

Note: Straight pipe length on the downstram side to be 5 pipe diameters minimum .
Note: D – Pipe internal diameter.

40D 20D Expanding Pipe

Recommend Mete r

Be Installed

Upstream

Regulating,
reducing valves
Ball, check valves
Shut-of f valves

Table 1 Piping Requirements

Installation

3

SCORE LINE FOR

FLOW ALIGNMENT

MODE

SET

INDUSTRIAL AIR VELOCITY/TEMPERATURE

FIXED PROBE MOUNT

TRANSMITTER/INDICATOR

!

°F-°C

FMA1000 SERIES

TM

-

FMA1000A SERIES

1/4" OD 304 STAINLESS STEEL TUBING

WITH INCH MARKING

AIR FLOW TO BE

PERPENDICULAR TO

THE SENSOR WINDOW

AIR VELOCITY/

TEMPERATURE SENSOR

AIR FLOW

.250 DIA.

12

1.50

RIGHT ANGLE

FIXED PROBE MOUNT

FMA1000B SERIES

SENSOR WINDOW

TOP

COVER

Figure 1. FMA1000 Transmitter with Fixed Probe Mount and Right Angle Mount

POWER/OUTPUT
CONNECTOR

3-4

3

Installation

15 FEET OF SHIELDED
FLEXIBLE CABLE

FMA1000 SERIES

12

TM

MODE

SET

INDUSTRIAL AIR VELOCITY/TEMPERATURE

TRANSMITTER/INDICATOR

-

°F-°C

!

Figure 2. FMA1000 Transmitter with a Remote Sensor Probe

3-5

SENSOR PROBE

COMPRESSION FITTING
(SSLK-14-14)

FMA1000 SERIES

Installation

TM

3

3.50

MODE

SET

INDUSTRIAL AIR VELOCITY/TEMPERATURE

TRANSMITTER/INDICATOR

°F-°C

-

TOP

COVER

!

10 PIN MALE CONNECTOR

(POWER/OUTPUT CONNECTION)

4.50

Figure 3. FMA1000 Transmitter General Dimensions

BASE

1.10

1.30

0.160 DIA. THRU

0.340 DIA. CNT'SINK
4 PLCS

2.400

3.440

Figure 4. FMA1000 Transmitter Wall Mounting Holes

3-6

4

-

°F-°C

-

SET

-

MODE

°F-°C

Main Operations

Section 4 - Main Operations

The FMA1000 transmitter has a built-in LCD backlit display and keypad.
Using the display and the keypad, you can view the following parameters:

• The air velocity & air temperature in real time (Main Display)

• Maximum air velocity & temperature during the session

• Minimum air velocity & temperature during the session

• Volume air flow in Cubic feet per minute (CFM)

You can view and set the following parameters from the keypad:

• High Alarm set point for air velocity

• Low Alarm set point for air velocity

• Transmitter’s response time – This is the response time of the analog

output and the display reading in real time.

• Cross sectional area of the air flow duct

• Atmospheric pressure setting in millimeter of Mercury (mmHg).

Changing Display Engineering units - You can change the air velocity
Engineering unit display from Feet per minute (FPM) to meter per second
(m/s), miles per hour (MPH), and kilometers per hour (Km/h) from the keypad
(Press key). You can change the Temperature display from ºF to ºC or vise
versa by pressing the key. Turn on Display Back light - You can turn the
LCD backlight on or off by pressing the key.

High & Low Alarm set points - You can set and enable the high & low alarm
set points for the air velocity as shown in the keypad flow chart. When in
the alarm condition, the HAL or LAL icon will flash on the LCD, and the
corresponding alarm voltage output will go high. The alarm voltage outputs
can drive external mechanical relays.

Display Volume air flow - The unit calculates volume air flow by multiplying
the air velocity by the cross sectional area of the pipe or the duct. The cross
sectional area can be set in the display menu as shown in the keypad flow
chart in square inches units. The volume air flow is shown in Cubic feet per
minute.

4-1

-

-

MODE

°F-°C

-

Main Operations

Table 2 shows the Keypad Functional flow chart. Figure 5 shows the display
functional flow chart.

MODE

Operation Press Press Press Press

SET

°F-°C

-

Real Time Go to Max FPM m/s °F °C or Turn on/off
Mode vice versa LCD Light
Km/h MPH

Display Max Vel. Go to Min ____________ _____________ Reset Max, Min,
& Temp MAX icon Mode Avg Vel. & Temp

Display Min Vel. Go to Average ____________ _____________ Same
& Temp MIN icon Mode

Display Vol. Go to High Alarm ____________ _____________ ____________
Flow CFM icon Mode Velocity

4

Display High Go to Low Enable/Disable Increment high Decrement high
Alarm Velocity Alarm Mode High Alarm, HAL Alarm set point Alarm set point
set point Velocity icon when enabled

Display Low Go to Output Enable/Disable Increment Low Decrement Low
Alarm Velocity Response Mode Low Alarm. LAL Alarm set point Alarm set point
set point icon when enabled

Display Output Go to Cross ____________ Increment Decrement
Response time sec. area Mode Response time Response time

Display cross Go to Atmos. ____________ Increment Decrement
sectional area Sq in

Display AtPr & Go to Real Increment Decrement
mmHg icon Time Mode

Press. Mode Cross sec. area Cross sec. area

____________

Atmospheric Pressure Atmospheric

Pressure Pressure

Table 2 – Keypad Functional Flow Chart

NOTE:

The FMA1000 transmitter saves the following parameters in the non-volatile
memory, so removing the power will not affect these settings:
High & Low alarm air velocity set points & status (On or Off)
Response time in msec Cross sectional area in Square inches
Atmospheric Pressure in mmHg

4-2

4

Main Operations

PRESS

SET

MPH

°F

REAL TIME MODE (MPH)

m/s

°F

REAL TIME MODE (m/s)

PRESS

MODE

MAXIMUM DISPLAY MODE

PRESS

MODE

MINIMUM DISPLAY MODE

PRESS

MODE

MAX

PRESS

SET

PRESS

SET

MIN

REAL TIME MODE (Km/h)

REAL TIME MODE

FPM

°F

ATMOSPHERIC PRESSURE DISPLAY MODE

FPM

°F

CROSS SECTIONAL AREA DISPLAY MODE

CFM

°F

FPM

°F

Km/h

MAX

PRESS

SET

PRESS

°F-°C

PRESS

MODE

REAL TIME MODE (°C)

PRESS

mmHg

PRESS

m/s

PRESS

FPM

°C

TO CHANGE
ATMOSPHERIC
PRESSURE

PRESS

MODE

TO CHANGE CROSS
SECTIONAL AREA

PRESS

MODE

TO CHANGE
RESPONSE TIME

PRESS

MODE

PRESS

TO CHANGE HIGH
ALARM SET POINT

PRESS

SET

TO ENABLE/DISABLE
HIGH ALARM

VOLUME AIR FLOW MODE

FPM

HAL

HIGH ALARM DISPLAY MODE

OUTPUT RESPONSE TIME MODE

PRESS

MODE

LAL

LOW ALARM DISPLAY MODE

Figure 5. Functional Display Flow Chart

FPM

PRESS

MODE

PRESS

TO CHANGE LOW
ALARM SET POINT

SET

PRESS

TO ENABLE/DISABLE
LOW ALARM

4-3

Operation

PC Interface and Application

The FMA1000 series comes with a Windows based user application. This
application can run on Windows XP, Vista, and 7. It allows you to perform the
following functions:

• Monitor and display the air velocity and temperature in real time,

including line graph of the two channels.

• Display the air velocity and temperature in different Engineering units

• Change the upper and lower values for the two channels from auto, to

manual , or logarithmic scale.

• Change the chart time base from 1 minute to 10 minutes, and one hour.

• Save the air velocity and temperature data to a file.

• Print the air velocity and temperature graphs to a printer.

• Install the user application.

• Connect the USB cable provided between the transmitter’s 10 pin

connector and the PC.

• There is no need to power the transmitter separately. The USB port

provides the necessary power to run the transmitter.

5

• When the transmitter is connected to the PC for the first time, the PC

recognizes the unit and it looks for the USB drivers. The necessary
drivers are on the same CD.

The “Found new hardware wizard” program will open. Select Install the
software automatically option (Recommended) and follow the menus.
If Windows can not find the driver, then select “Install from the specific
location” option and select the program CD where the drivers are located.

You are now ready to run the application. When the application is run, it
establishes communication with the FMA1000 transmitter, and a “Go” button
will show up on the Main window. Clicking the “Go” button will start the data
logging session.

If the application can not establish communication, it will show an error
message box, and the “Find” button will flash. Please check for the following:

• The transmitter is connected to a USB port of the PC

• Go to Settings menu and check the COM port number. Make sure

you are using the right COM port on your PC. You can check the
connected COM port by opening the Device Manager (From the
system properties) and review all the COM ports.

• Click the “Find” button, and the program should be able to establish

communication. The “Find” button will change to “Go”.

• Click the “Go” button, and the program will start to log data in real

time. The display update is every 250 msec.

Figure 6 shows the Main window after logging some data. The main window
shows the following:

• Display of line graph and digital values of air velocity and temperature

in real time.

5-1

5

PC Interface and Application

• Display high & low alarm lines and values for velocity

• Display response time in msec, volume air flow in CFM, cross sectional

area in square inches, and the atmospheric pressure in mmHg.

• High & low alarm LED indicators for the velocity channel. The LED

indicator will turn red when in alarm condition.

• Communication LED indicator. This is a flashing Green LED indicator

to show good communication. If there is no communication, this
LED will not flash.

You can save the logged data into a data file. This file can be imported into
Excel spread sheet for further analysis. Figure 8 shows a typical data file. You
can save up to 144,000 sets of velocity and temperature data.

5-2

Figure 6. Main Window

PC Interface and Application

5

Figure 7. Typical Data File

Figure 8 shows the Settings menu. You can set the following parameters:

• COM port number on your PC.

• Turn the audible indicator on/off.

• Engineering units for air velocity and temperature

• Select chart time base from 1 minute per frame (screen), 10 minutes, or

one hour.

• Select manual, auto, or logarithmic scale of the air velocity or

temperature. This function allows the user to set the Y scale for the
air velocity and temperature to any value within its range.

• Select Save to file, History viewer, and Maximize start up.

When the “Save to File” is selected (Default), the program asks if you would
like to save the data to a file when you stop the data logging. Figure 7 shows a
typical data file saved.

5-3

5

PC Interface and Application

Maintenance

Calibration

Figure 8. Settings Menu

Except for intermittent removal of the sensor from the line for cleaning, there
is no routine maintenance for the FMA1000. If the sensor probe becomes
coated with dust, blow the dust away with clean air. If the sensor probe is
coated with sticky material, clean it with water or alcohol (Ethanol) using an
artist’s brush.

Each FMA1000 is individually calibrated in a NIST traceable wind tunnel. For
calibration certification or calibrating to a new air flow range, the unit must be
returned back to the factory.

5-4

Section 6 - Specifications

Range
Air Velocity: 0-500, 0-1000, 0-2000, 0-5000, 0-10,000,
0-12000 FPM
Air Temperature: -40 to 93ºC (-40 to 199ºF)

-40 to 171°C (-40 to 340°F)

Accuracy
Air Velocity: 1.5% Full scale
Air Temperature: 0.5% Full scale

Display Resolution
Air Velocity: 1 FPM, 0.01 m/s, 0.01 MPH, 0.01 Km/h
Air Temperature: 0.1 Degree

Sensor Probe
Standard: 6.3 OD x 305 mm

(

-S (Short Probe): 6.3 OD x 95 mm

(

Specifications

for high temperature model

1

⁄4 OD x 12") – 304 Stainless Steel

1

⁄4 OD x 3.75") – 304 Stainless Steel

6

Velocity/Temperature Sensor: One 100 ohms RTD, Two 1000 ohms RTD

Response Time 250 msec default
(0 to 90% Final value Display (Programmable from 250 msec to 2 seconds)
& Analog output):

Calculated Air Velocity Values: Maximum & Minimum, 250 msec response

time

Calculated Temperature Values: Maximum & Minimum, 250 msec response
time

Calculated Volume Air Flow: Displays in cubic feet per minute (CFM)

Cross Sectional Area: 20 Sq-Inches default

Programmable from 1 to 400 Sq-Inches via

keypad

High Alarm Set Point, Velocity: Maximum range default – Programmable via

keypad

Low Alarm Set Point, Velocity: Minimum Range default – Programmable via

keypad

High & Low Alarm Indication: HAL or LAL icon flashes on the display

Alarm Deadband: 25 FPM

Alarm Outputs: Two voltage outputs @ 100 mA drive

Analog Output – Velocity

-MA: 4-20 mA @ 400 ohms Max load

-V1: 0-5 Vdc @ 1000 ohms Min load

-V2: 0-10 Vdc @ 2000 ohms Min load

Analog Output – Temperature: 0-5 Vdc @ 1000 ohms Min load

Power: 15-24 Vdc @ 150 mA

6-1

6

Specifications

Operating Ambient Temperature
Sensor Probe: -40 to 93ºC (-40 to 199ºF)

-40 to 171°C (-40 to 340°F)

for high temperature model

Transmitter: 0 to 50ºC (32 to 122ºF)

Operating Relative Humidity: 0 to 95% RH without condensation

Transmitter Case: ABS Plastic - IP65, NEMA 4X rated

PC Interface: USB, 115200 baud rate, 8 bit data, No parity,

1 stop bit

General Dimensions: 88.9 H x 114.3 W x 33.0 mm D

(3.5 x 4.5 x 1.3")

Weight: 0.75 lbs

6-2

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’s WARRANTY adds an additional one (1) month grace
period 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 in which wear is not warranted, include but are 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 nor 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 the
company will be as specified and free of defects. OMEGA MAKES NO OTHER WARRANTIES OR
REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESSED 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 exclusive, 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
activity, medical application, used on humans, or misused in any way, OMEGA assumes no responsibility
as set forth in our basic WARRANTY/DISCLAIMER language, and, additionally, 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 DEPARTMENT (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 trademark of OMEGA ENGINEERING, INC.
© Copyright 2018 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 REPAIRS, 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.

Where Do I Find Everything I Need for

Process Measurement and Control?

OMEGA…Of Course!

Shop online at omega.com

TEMPERATURE

MU

Thermocouple, RTD & Thermistor Probes, Connectors,

Panels & Assemblies

MU

Wire: Thermocouple, RTD & Thermistor

MU

Calibrators & Ice Point References

MU

Recorders, Controllers & Process Monitors

MU

Infrared Pyrometers

PRESSURE, STRAIN AND FORCE

MU

Transducers & Strain Gages

MU

Load Cells & Pressure Gages

MU

Displacement Transducers

MU

Instrumentation & Accessories

FLOW/LEVEL

MU

Rotameters, Gas Mass Flowmeters & Flow Computers

MU

Air Velocity Indicators

MU

Turbine/Paddlewheel Systems

MU

Totalizers & Batch Controllers

pH/CONDUCTIVITY

MU

pH Electrodes, Testers & Accessories

MU

Benchtop/Laboratory Meters

MU

Controllers, Calibrators, Simulators & Pumps

MU

Industrial pH & Conductivity Equipment

DATA ACQUISITION

MU

Communications-Based Acquisition Systems

MU

Data Logging Systems

MU

Wireless Sensors, Transmitters, & Receivers

MU

Signal Conditioners

MU

Data Acquisition Software

HEATERS

MU

Heating Cable

MU

Cartridge & Strip Heaters

MU

Immersion & Band Heaters

MU

Flexible Heaters

MU

Laboratory Heaters

ENVIRONMENTAL
MONITORING AND CONTROL

MU

Metering & Control Instrumentation

MU

Refractometers

MU

Pumps & Tubing

MU

Air, Soil & Water Monitors

MU

Industrial Water & Wastewater Treatment

MU

pH, Conductivity & Dissolved Oxygen Instruments

M4791/0118