Omega Products OM-3000 Installation Manual

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

CONTENTS

INTRODUCTION _____________________________ 7

1.1 STANDARD FEATURES _______________________8

1.2 STANDARD KIT ITEMS ________________________9

1.3 SUMMARY OF PARTS________________________10

1.4 PRECAUTIONS______________________________11

1.5 USING THIS MANUAL ________________________13

1.5.1 Warnings ____________________________________ 13

1.5.2 Names ______________________________________ 13

1.5.3 Instruction Sequences __________________________ 14

1.5.4 Instruction Types ______________________________ 14

BASIC OPERATION _________________________ 15

2.1 GENERAL__________________________________16

2.1.1 Powering Up__________________________________ 16

2.1.2 Accessing Main Menu __________________________ 16

2.1.3 Selecting a Main Menu Item______________________ 17

2.1.4 Selecting an Option ____________________________ 17

2.1.5 Editing Names ________________________________ 19

2.1.6 Editing Numerical Values ________________________ 22

2.2 SETTING UP INPUTS_________________________23

2.2.1 Channel Selection & Setup ______________________ 24

2.2.2 Channel Types ________________________________ 25

2.2.3 Matching Inputs to Sensors ______________________ 26

2.2.4 Modifying the Input boxes _______________________ 27

2.2.5 Modifying the Output boxes ______________________ 29

2.2.6 Modifying the Units_____________________________ 29

2.3 SETTING UP CHANNELS _____________________30

2.3.1 Setting Up Your Recording (The Trigger Menu) ______ 30

2.3.2 Setting Display Options _________________________ 36

2.3.3 Graph Controls ________________________________ 37

2.4 RECORDING DATA __________________________39

2.4.1 Setting Up the Filename_________________________ 39

2.4.2 Choosing a Folder _____________________________ 39

2.4.3 Starting a Recording____________________________ 40 3

2.4.4 Auto-Repeating Recordings ______________________ 40

2.4.5 Chained Recordings____________________________ 41

2.5 PLAYING BACK _____________________________42

2.6 FILE UTILITIES______________________________43

2.7 OUTPUTTING SAMPLES FROM RS232 __________44

UTILITIES__________________________________ 45

3.1 RESETTING THE INSTRUMENT ________________46

3.2 ADJUSTING LCD ____________________________47

3.2.1 Adjusting Contrast _____________________________ 47

3.2.2 Turning Backlight On ___________________________ 47

3.3 SETTING CLOCK ____________________________48

3.3.1 Checking Date and Time ________________________ 48

3.3.2 Setting Date and Time __________________________ 48

3.4 MANAGING BATTERY________________________49

3.4.1 Instrument Battery _____________________________ 49

3.4.2 Checking Battery Capacity_______________________ 50

3.4.3 Charging Powered-up instrument__________________ 50

3.4.4 Charging Powered-down instrument _______________ 50

3.4.5 Reconditioning Batt ery Pack _____________________ 51

3.4.6 Power Saver__________________________________ 51

3.4.7 Replacing Battery Pack _________________________ 52

3.5 ERASING MEMORY__________________________53

3.6 TROUBLESHOOTING ________________________54

3.6.1 Power Problems_______________________________ 54

3.6.2 Data Problems ________________________________ 54

3.6.3 Data-Transfer Problems_________________________ 55

3.6.4 Other Problems _______________________________ 55

ANALYSIS SOFTWARE______________________ 57

4.1 INSTALLING OM-3000

4.1.1 License Agreement ____________________________ 58

4.1.2 PC System Requirements _______________________ 58

4.1.3 Installing OM-3000

4.2 STARTING UP

4.2.1 Starting up ___________________________________ 60

4.2.2 Configuring PC COM port _______________________ 60

MAS

___________________________60

MAS

____________________58

MAS

on PC ___________________ 59

4.3 TRANSFERRING DATA TO THE PC_____________61

4.4 MANAGING DATA ___________________________62

4.4.1 Opening a File ________________________________ 62

4.4.2 Merging Two Files _____________________________ 62

4.4.3 Using the Navigator ____________________________ 62

4.4.4 Deleting Data from a Folder ______________________ 62

4.4.5 Editing Recording Details________________________ 63

4.4.6 Viewing and Printing Data Values _________________ 63

4.4.7 Exporting data ________________________________ 64

4.5 CALCULATING DATA ________________________65

4.6 PLOTTING DATA ____________________________66

4.6.1 Plotting Single and Individual Charts _______________ 66

4.6.2 Zooming & Panning ____________________________ 67

4.6.3 Printing Charts ________________________________ 67

4.6.4 Reading and Comparing Values __________________ 68

4.6.5 Plotting Waterfall Charts_________________________ 70

4.7 UPGRADING FIRMWARE _____________________71

Appendix SPECIFICATIONS __________________ 73 Appendix Application Notes__________________ 75

6.1 Application Note 1___________________________75

6.2 Application Note 2___________________________80

Appendix Optimizing Temperature Accuracy____ 83 Appendix OM-3000

8.1 FUNCTIONS ________________________________86

8.1.1 Mathematical Functions _________________________ 86

8.1.2 Iterative Functions _____________________________ 88

8.1.3 Logical Functions ______________________________ 88

8.1.4 Conditional Functions___________________________ 89

8.1.5 Date and Time Functions ________________________ 89

8.2 OPERATORS _______________________________90

8.2.1 Logical Operators______________________________ 90

8.2.2 Arithmetic Operators ___________________________ 90

MATH ________________ 85

MAS

MASMAS

INTRODUCTION

MAS

Windows

OM3000

OM3000-T6V4

C (-418 to +2498oF)



based software sup plied

temperature

5VDC or

Congratulations on purchasing the

T6V4

The measurement ranging from –250 to +1370 depending on the thermocouple type, and up to four channels of

voltage

30VDC. Collected data can be transf erred to a PC where it can be analyzed in detail using the in the kit.

This manual has been f ormatted to a llow you to quic kly learn ho w to use your read it before operating your

module allows up to six channels of

measurement with user-selectable settings of

OM3000

. Please keep this manual for futur e reference and

1.1 STANDARD FEATURES

• 24-bit A/D converter providing high-precision measurements

• 512kB non-volatile memory capable of storing up to 400,000

sample points

• Time and date stamped recordings

• Temperature compensated graphical L CD (liquid-cr ystal displa y)

with 240x128 pixels

• Electro-luminescent LCD backlight

• Built-in battery charger and conditioner

• 1500mAh Ni-Cad (Nickel-Cadmium) battery pack

• Upgradeable firmware

• RS232 interface to communicate with a PC (personal computer)

• Windows



based Measurment Analysis Software (

MAS

)

1.2 STANDARD KIT ITEMS

1.3 SUMMARY OF PARTS

1.4 PRECAUTIONS

WARNING

operating your instrument. Not heeding the warnings or recommendations c ould res ult i n data loss, data inaccuracy, dam age to the instrument, or injury to yourself.

WARNING

transfer cable and bootstrap cannot be entangled with any moving or rotating machinery.

: Please read and understand this section fully before

WARNING

connect any sensor to a high voltage i.e. a vo ltage that exceeds 50VDC or 32VAC or the “safety extra low voltage” (SELV) defined by your local power authority.

: Ensure the data-

: To avoid electrical shock, do not

WARNING

an explosive environment.

: Do not operate the instrument in

WARNING

the instrument for more than 2 hour s as data and settings may be lost.

: Do not detach the battery pack from

WARNING

a PC before reprogram ming the instrum ent with new firmware – reprogramming the instrument erases all data stored in the instrument (see section 4.6).

: Transfer data stored in t he instrument to

2 hours

WARNING

: Charge the battery pack up to at leas t 30% capacity before taking a recording. If using the instrument for 4 hours or more, first ensure that the battery pack is fully charged.

30%

WARNING

: Constantly charging the battery when it is not fully drained will create a "Memory" effect and eventually shorten the amount of charge that the battery can hold. Please read

Managing Battery

to learn how to prevent this.

WARNING

: Do not expose the instrument to large

3.4

impacts or pressure.

WARNING

solvent to clean the instrument.

: Do not use alcohol or any organic

WARNING

: Do not expose the instrument to wet

Kero

conditions or store it in a dam p place where the relati ve

humidity exceeds 80% RH.

WARNING

: Do not place the instrument in a hot place where the tem perature exceeds 140°F (60°C). Otherwise, the battery pack will degrade.

WARNING

: Ensure that the battery pack is securely fastened – but not over-tightened – to the instrument before operating the instrument.

WARNING

: If the instrument malf unctions, return it to an authorized dealer. Do not try to repair it yourself, as this will invalidate the warranty.

WARNING

: Use only an approved power transformer and ensure its voltage and frequency rating matches that of your mains AC power.

DEALER

AUTHORIZED

1.5 USING THIS MANUAL

1.5.1 Warnings

In this manual, the word actions may lead to dam aging consequences. Please he ed all such warnings.

WARNING

is displayed where certain

1.5.2 Names

In this manual, window and screen names are italicized. These names refer to the names appearing at the top of windows/screens.

MAS

Window

The PC key names ar e shown as norm al tex t, e.g. Shif t ref ers to the Shift key on the PC keyboard.

Keys on the instrument are shown as they appear on the instrum ent keypad, e.g. Some instrument keys have more than one function, e.g. the

key which is used as either t he ON k e y or the OFF key depending on the state the instrument is operating in.

refers to the Shift key on the instrument.

1.5.3 Instruction Sequences

The ! symbol is used to indicate the sequence of menu selections.

Instruction Meaning

Click File ! Save. Select the File menu and t hen

select Save.

1.5.4 Instruction Types

The word “press” refers to key presses or menu selections on the instrument.

The word “click” refers to menu selections on the PC, and “push” refers to key presses on the PC keyboard.

Instruction Meaning

Click File ! Export.

Push the Esc key.

Some operating instructions are illustrated with examples. Such instructions are marked with the word

Select File and then Export in

MAS

software.

Push the Esc key on the PC keyboard.

EXAMPLE

BASIC

OPERATION

This section outl ines the procedure for perform ing basic operations on your instrument. You will learn to:

• use the instrument menu system;

• record data; and

• playback recorded data.

WARNING

: Read section 1.4 before operating your instrument.

2.1 GENERAL

2.1.1 Powering Up

• Press

that is being measured (using previous settings).

• To power down, press the instrument does not respond to any key press, reset it (see section 3.1).

. The Initialization screen is displayed.

. Measurement begins and the screen displays data

and follow on-screen instructions. If

2.1.2 Accessing Main Menu

To perform instrument operations, you need to access the main menu. To access the main menu:

• Press

You can alternativel y press top of the screen and consis ts of four items: File, Display, Trig(ger),

and Sys(tem). To cancel the main menu, press

. The main menu is dis played at the

again.

Every time the instrument is powered up, the power saver (a power-saving feature)

is automatically turned on. See section 3.4.6 for more details.

2.1.3 Selecting a Main Menu Item

• Press the number preceding the menu item.

Alternativel y, press

or .

EXAMPLE

The drop down menu above shows the available options for the Trigger menu. To c a n c e l a d r opdown menu, press

: to select the main menu item Trig, press

and to cycle to the menu it em then pr ess

2.1.4 Selecting an Option

The procedure for s electing an option in a dropdown m enu is similar to selecting a main menu item i.e.

• Press the num ber preceding the opti on, or press cycle to the option and then press

Selected options, where appropriate, are checked (!). Selecting options with names ending with “…” br ings up windows that pr ovide more options. These o ptions, and any further options they provide, can be selected in the same manner. Most windows have selfexplanatory instruc tions. If more than one window is displayed, the

topmost is the one active. To cancel a window, press

or .

and to

EXAMPLE:

to select Level Based… in the example below, press

2.1.5 Editing Names

To enter characters in the text editing window:

• Select Display from the m ain m enu an d then se lect Edit Ch annel Units or Edit Channel Names.

• Pres s the ke y with the character you want un til it appears above the flashing cursor.

e.g. to enter the letter B, press

• The cursor advances automatically when you press the next key.

e.g. if the next letter you want to enter is E, press displayed.

• If the next letter of the word is on the same key just pressed, press

e.g. press (The cursor can be moved backwards by pressing

• More editing options (and their shortcut keys) are available by pressing

to advance the cursor position.

then press key until the letter D appears .

until the B is displayed.

until E is

Note

and can be used to enter the space character.

Libraries are available to make entering text easier.

• Press

• Pressing

to access the library categories.

will show the last text library selected.

Table of Short Cut Keys

Short Cut Key Meaning

! or ! or

(press twice)

To toggle from upper to lower case press and choose the desired case from the pop-up menu.

Folder, Recording and Channel names can have a maximum of 16 characters. Unit Names can have a maximum of 8 characters.

Clear all text Move cursor forward Move cursor back Insert a space Delete character

Can be used to enter a space

Text Library Last Text Library

2.1.6 Editing Numerical Values

• Select the numeric field to be edited (using the normal option selection procedure outlined in section 2.1.4).

• Press the appropriate digit keys to enter the desire d value. Ent er a decimal point by pressing

• To make the number negative/positive press

• Clear floating point num bers by pressing

point numbers can sometimes be incremented or decremented by pressing

SAMPLING PERIOD.

, e.g. This is possible when setting the

. Non-floating

2.2 SETTING UP INPUTS

T6V4

The eight channels of data at a time. Due to the sharin g of channels 5 and 9, and of channels 6 and 0, the following conditions apply:

WARNING

1. Ensure that when using these shared channels, that only the

2. Never allow voltages of more than 10V between any two

3. Thermocouple channels 5 and 6 have a low input impedance

module is capable of sim ultaneous m easurem ents of up to

• Channels 5 and 9 cannot be simultaneously selected

• Channels 6 and 0 cannot be simultaneously selected

selected sensor type is connected. If a voltage source and thermocouple of shared chan nels are sim ultaneous ly connected, measurements will be erroneous.

thermocouple inputs, or 5V between an input and module ground. This may damage the instrument.

due to the fact that the y are shared with voltage channe ls 9 and

0. If thermocouples of a resist ance higher than a few Ohms (eg. Thermocouples with wire lengths longer than typically 2 to 3 meters) are used in these channels a small error will be introduced. This error is proportional to the ratio of the thermocouple resistance to the input impedance.

4. For best accuracy, all sources being measured should be perfectly isolated from each other (including thermocouple inputs)

† See Appendix Optimizing Temperature Accuracy.

†

2.2.1 Channel Selection & Setup

The instrument needs to know what type of sensor is attached to each input channel. You must set up the input channels one at a time.

• Access the main menu (see section 2.1.2).

• Press Sys ! Setup Inputs… to display the “Setup Channel

Input” window.

• Press

• Select the channel you would like to setup.

Note:

or to display the channel drop down menu.

Channels can be named b y choosing “Edit/Names” from the ”Display” menu on the main menu bar (see section 2.1.2). These names appear when downloading to a PC.

2.2.2 Channel Types

There are two types of channels on th e instrum ent, tem perature and voltage. Each t ype of channel has differ ent configuration options as follows:

Temperature Channels

Thermocouple type can be selected

• This can be done b y moving the cursor to the “K-type” option in the “Setup Channel Input” window and

pressing displayed.

• All thermocouples attac hed to the instrum ent m u st be of the same type.

Units can be selected

• Move the cursor to the units displayed below the thermocouple type and press

through the units, “

Voltage Channels

Voltage range can be selected

• Move the cursor to the “+/- 30V” and pressing

will toggle between “+/- 30V” and “+/- 5V”.

or . The following screen will be

C”, “oF”, and “User”.

or to cycle

Any change made to the voltage range will reset t he input a nd output ranges to the default setup values.

2.2.3 Matching Inputs to Se n sors

If you are using standard thermocouple or voltage inputs, then no further setup is required. Ho wever for using other sensor s, you need to match the inputs from the sensor to the values you would like displayed.

EXAMPLE

: If you have a 0V – 24V proximity probe connected to

channel 8 that outputs:

0V at 1 mm

and 24V at 3.4 mm

then the following linear relationship is assumed:

3.4 mm

Measurement

to display

(mm)

2.0 mm

1.0 mm

10V = 2.0 mm

0 V

10 V

Sensor output-voltage

(V)

24 V

2.2.4 Modifying the Input boxes

In this example we will setup the channel to match the following sensor inputs:

• From the main menu, press Sys ! Setup Inputs… and select the channel to be setup.

• Use the input box you wish to edit.

• Press

or to display a list of edit options.

arrows to move the flashing cursor to the

Editing the Input Value:

• Select “Edit Input…” to enter the sensor input voltage in V.

• Press

or to accept the entered value.

Sampling the Input value

It is also possible to s et the input boxes by sam pling the voltage or temperature being monitor ed b y the instrument.

This is very useful if you know what you’re measuring, but do not know what voltage / temperature your input sensor is providing.

e.g.

You have a sensor that can measure the depth of water based on pressure readings but have no data that relates the

6ft

sensor output voltage to the actual depth. However, you do know that the present depth = 6ft.

• To match the input box follow the steps from the previous example, but choose “Sample Input”.

• The input box will update with the sample taken being displayed in the selected input box.

• If you are not happy with the sampled value keep selecting “Sample Input” until you are, then press

to close the options

menu.

Note

: • The first input box reading must be lower than the

second input box.

• Input box readings must be more than 50 temperature and more than 1V apart for voltage.

apart for

2.2.5 Modifying the Output boxes

• Use the output box to be altered.

• Press become highlighted, with its pr e v ious va lue c leare d. N ow enter in

the value, and press

• Now press should flash beneath it).

• Press

or to accept this value.

Note

: Output box values • Can be positive or negative.

or to edit the value in this box. The box will

to begin editing. T ype in the number 3.4, and press

arrows to move the flashing cursor to the

or to accept this value.

arrow to select the nex t output box (The cursor

• Can contain decimal places.

• Can be in any order (i.e. box 1 can be

greater than box 2).

2.2.6 Modifying the Units

• To change the units (e.g. to mm), press flashing cursors appear below the unit boxes.

• Press window will appear (see section 2.1.5).

to begin editing the unit. The “Enter Channel Unit”

arrow until two

2.3 SETTING UP CHANNELS

2.3.1 Setting Up Your Recording (The Trigger

Menu)

Most of the important information involved in your recording is entered under the trigger menu. Trigger T ype, which Channels are enabled, Sample Period, and Recording length/time.

Below are examples of all the trigger menu item s. Each item can be configured by follo wing the pop-up m enus as per previous sections.

Timer and level b ased trigger optio ns can be selected by t he

arrows and pressing or .

The Trigger Type (how recordings are started).

There are three main types of trigger available:

•

Manual Trigger

•

Time Based Trigger

•

Level Based Trigger

1 Manual Trigger

button.

- recording started and stopped by pressing

2 Timer Based Trigger

e.g. • Log data every day

Starting at 10:05:00am

• Record 5 samples

• Sample Period = 1 second

• After Recording

Power Down (30 sec sensor warm up)

10:05:00am

Recording Period

Sample Period

= 1 second

Logging Period = 1 day

= 5 Samples

10:05:00am 10:05:00am

Warm up time = 30 seconds

- data is recorded at regular intervals.

Log Period Recording Period

Sampling Period Stay Awake or Power

Down and Warm Up Instructions

The user selectable warm

up time can be used to

allow sensors to stabilize

before recording begins.

Recording

Waiting

3 Level Based Trigger

specified level.

- data is recorded if a sensor reaches a

6 m -

e.g. Trigger if lake level is above 6m or below 2m.

2 m -

Outside Window Level

Available level trigger opt ions .

Trigger if signal is: Above Below Inside Outside Level(s)

The Level based triggering option also allows for two more types of triggering to be used:

•

Pre-Triggering

•

Post-Triggering

4 Pre-Trigger

- record data for a specified time before a level

trigger occurs (level trigger must also be selected).

Chan 1

e.g.

Acidity

Crater Lake

Chan 2 Vibration sensor

Instrument Settings Channel 1 – No trigger setting Channel 2 – Trigger if quake level is

above 6 on the Richter’s scale

Pre-Trigger set to 1 hour Sample period = 1 second Record for 2 hours

Days/weeks etc. 1 hour data

Press

What is the acidity of a crater lake 1 hour before an earth quake?

“Quake”

signal

Quake triggers data logger

Pre-trigger Data after quake

recorded before quake

2 hours data recorded after quake

Once Pre-trigger is set, the d ata logger can be left for da ys, weeks etc. When the specified trigger level occurs, pre-trigger data is already saved in memory.

5 Post Trigger

- start recording data to mem ory after a specified

time has elapsed once a level trigger has occurred.

Trigger occurs

Data recorded

Press

6 Enable Channels

record.

Note

: • Faster sampling rates are available if fewer channels

are selected.

• Less memory is used if few channels are enabled.

7 Sampling Period

Water level

Channel 1

Sample

recorded to

memory

Post-trigger time

- select the channels you would like to

- the amount of time between samples.

1 second sampling

period

Note

: There is a fraction of a sec ond de lay bet ween chann el

1 second

sampling

period

1 second sampling

period

1, 2, 3 etc. recordings.

7 Record For…

of samples to take before recording automatically stops.

Note

:If “Auto Repeat Recordings” (under the file menu) is

- the amount of time to record for, or the number

selected and level trigger is also selected, a new file will be created as soon as the recording time has finished. This way you can get a separate file every time a lake level goes into flood for example.

2.3.2 Setting Display Opti ons

To specify how measured data is to be displayed:

• Access the main menu (see section 2.1.2).

• To display measured data in the form of text, press Display !

Text. The real-time readings are displayed for each enabled channel.

• To display measured data in a text with minimum and maximum values, press Display ! Min/Max.

• The min and max values are reset whenever a new recording is started, or

• To edit the measurement unit for a channel, press Display ! Edit Units… In the Enter Channel Unit window, select the

channel by pressing unit (see section 2.1.5).

• To edit the name of a channel, press Display ! Edit Names… In the Enter Channel Name window, select the channel by

pressing section 2.1.5).

is pressed.

or and then edit the name of the

or , and then edit the name of the channel (see

• To swap temperature units between degrees Celsius, degrees Farenheit and User defined setup, pres s Display ! Temperature

Units:

Note

: It is possible to change the displayed Temperature units

during a recording by using the Display menu, but any triggers that have been applied to Temperature channels may accidentally trigger. The trigger levels that have been set for any of the temperature channels are not converted when you change your selection of Temperature units.

2.3.3 Graph Controls

To view an xy-graph:

• Press Display ! Graph.

The following controls are available wh en viewing a graph. When a file is being played back, additional cursor and zoom controls are available.

Option Meaning

Active cursor moves right (Playback only)*

Active cursor moves left (Playback only)*

Toggle active cursor (Playback only)*

Zoom In and Out between cursors (Playback only)*

KEYS 1 – 9, 0

(quick key press)

(continuous key press)

Select channel 1 to 0 Increase y-axis scale

Decrease y-axis scale

Scroll graph up

Scroll graph down

Resets graph settings to default

*(Playback only) - Cursors are available only when playing back a file. For more inf orm ation on Playback mode please s ee sec tions 2.5 and 2.6.

Ch1 123.8

C !! 257

Channel being

examined

Note

: To leave the “Playback ” environment either press

Value at

active cursor

or select Display ! Exit Playback.

Sample

number at

active cursor

2.4 RECORDING DATA

2.4.1 Setting Up the Filename

The data recorded in a single recordi ng session is stor ed as a file. The name of the f ile into which data wil l be recorded is d isplayed at the bottom of the data-display screen.

• T o edit the nam e of the file, pr ess File ! New Recording. In the New Recording Setup window, select Filename and edit the filename in the New File Name window (see section 2.1.5).

• File nam es are automatically num bered after the first recording e.g. Lake level, Lake level 1, Lake level 2… etc.

2.4.2 Choosing a Folder

For identification purposes, it is convenient to group files that are related under a common folder.

• To choose the folder under which the recording file is to be grouped, press File ! New Recording. In the New Recording

Setup window, select Folder, and in the Save Recording in Folder… window, select the folder.

• If a new folder is require d, pr ess Folder in the Save Recording in Folder… window, sel ect the new f older, and then press Rename

to edit its name. Then select the newl y created folder in order to place the recording file in it.

2.4.3 Starting a Recording

• From the main display screen press

Data will be recorded and displayed according to how the inputs, trigger, and display options were set up. The sample number is updated on the bottom right of the screen as the samples are collected.

The data is recorded into the file and f older you chose earlier (the name of the file is displayed at the bottom of the screen).

to start the recording.

2.4.4 Auto-Repeating Recordings

If recordings are le vel-triggered, the ins trument can be instr ucted to take recordings repeatedl y. This is us eful for captur ing the next level trigger event.

To auto-repeat level-triggered recordings:

• Press File ! Auto Repeat Recordings to check (!) the option.

• To stop a recording press the

key.

2.4.5 Chained Recordings

The instrument has a maximum capability of approx 60,000 data points per individual recording. When this size is reached, another file is created and recording c ontinues witho ut intervention or loss of data.

Note

: Each sample of each channel uses up a data point, e.g. a 4

channel recording of length 10,000 samples uses up 40,000 data points.

Chained recordings are denoted with an x/ y extens ion. Which can be interpreted as the xth number part of a total of y parts.

e.g. Untitled 1/2

Untitled 2/2

When transferring to then the chained recordings will be recombined into a single long recording.

MAS

, if the entire folder is selected and sent,

2.5 PLAYING BACK

To play back a recording:

• Press File ! Examine files…

• In the Playback File window, select the recording to be played

back and press

Note

: Recordings can be played back in either the text, bar or

graph display modes, irrespec ti ve of the mode that the y were recorded in.

• In the data-display screen, press the samples and

the beginning of the recording ( the sample number is dis played at the bottom right of the screen). The instrument beeps when you have reached the first and last samples.

• T he display type and units can be altered i n the playback, any changes made during p layback are only for the durati on of the playback. This allows recordings to be viewed in an alternative view from the way that they were recorded.

• T o exit Playback mode either press Playback.

Note

: In the Playback File window, there are also options to

rename or erase a folder or recording, create a new folder and collapse or expand the data tree.

to move forward through

to move backwards. Press to return to

or Display! Exit

2.6 FILE UTILITIES

In the file selection window (File!Examine Files) the following utilities are available:

Option Meaning

1. Shrink / Expand

2. Folder

3. Rename

4. Copy

5. Lock

6. Erase

7. Snd to PC

Shrinks or Expands the File Folder structure to make selecting a folder easier and quicker.

Creates a NEW FOLDER. Renames a file or a folder. Copies the selected file’s s etup (channel names,

units, trigger type etc.) so that the next recording’s setup is the same.

Prevents a file from being erased with the “ERASE” option. T his option can be used to loc k your recordings so th eir setups are protected a nd can then be copied at a later date. WARNING: File! Erase All Memory will erase a locked file.

Erases the selected f ile or folder (does not erase locked files/folders).

Sends the selected file or folder to the PC (see section 4).

Selects a file for playback or selects the active FOLDER to record int o (if Window Title is “Save Recordings in Folder…”).

2.7 OUTPUTTING SAMPLES

FROM RS232

Press File!Output Samples to RS232 to send real time data in ASCII format from the instrument’s RS232 port.

This data can be captured by a PC (e.g. using HyperTerminal).

Channel Number Values

14.5000

6.8251

100.02

99.800

4.6000

6.8252

100.00

200.00

Format of Data

<channel number><space><channel value><CR><LF> (8 data bits, no parity bit, 1 stop bit)

The default bit rate is 9600 bits/secon d, but it is p ossible to ha ve the instrument send data at 57600 or 19200 bits/second.

Approximately 200ms between channel readings

Cycle continuously repeats

To select a higher rate, send the instrument approximately 20 ’Q’ characters (e.g. pres s Q in HyperTerminal 20 times ) at the bit rate you desire.

Note

: • ‘∗’ characters will be echoed while the ‘Q’ characters are

being transmitted.

• Operating the instrument’s menus may temporary disrupt the transmission of samples from the RS232 port.

• Transferring files to transmission.

• When using Timer Trigger, COMs will default to 9600 bits/second after the first wakeup.

MAS

cancels RS232 sample

UTILITIES

This section outlines the procedure f or perform ing utility funct ions on your instrument . You will learn to:

• reset the instrument ;

• adjust the instrument LCD;

• set the instrument clock;

• manage the instrument battery pack;

• manage memory usage on the instrument ; and

• troubleshoot the instrument .

WARNING

: Read section 1.4 before operating your instrument .

3.1 RESETTING THE INSTRUMENT

Sometimes, due to electrostatic discharge exceeding 8kV, the instrument may not respond to any key presses (including

presses). In such cases, it is important to reset the instrument as soon as possible. To reset the instrument :

• Press

simultaneously, once the initialization screen has been displayed.

Once reset, the instrument displays the Initialization screen and resumes normal operation. Res etting the instrument does no t erase data or settings stored in the instrument .

while holding down and then release th em both

3.2 ADJUSTING LCD

3.2.1 Adjusting Contrast

• Press Sys ! LCD-Contrast…

• To darken the LCD, press

• To restore the default contrast, press

If the screen flickers when cursors are moved, make the LCD darker.

. To lighten it, press .

then .

3.2.2 Turning Backlight On

To toggle the backlight ON and OFF press then .

3.3 SETTING CLOCK

3.3.1 Checking Date and Time

• Press Sys !Clock.

All recordings are date and time stamped according to the clock shown in the Date & Time window.

3.3.2 Setting Date and Tim e

• Press Sys ! Clock.

• To cycle to a particular field, press

• To edit the value of a field, press

• Press

If the am/pm hour f ormat is chosen, the hour s witches back to 1 at the thirteenth hour. If the 24h format is chosen, the hour c ontinues incrementing until 23 before switching back to 0.

when you have finished.

and .

3.4 MANAGING BATTERY

3.4.1 Instrument Battery

The instrument is powered by a rechargeable Nickel-Cadmium (NiCad) batte ry pack. The normal operating voltage is 6.0 to 8.5 Volts.

Some automatic features have be en built into the inst rument to help ensure that the battery pack is alwa ys suf f ic ientl y charge d. Be lo w 6.6

Volts, the instrument displays a flashing corner of the screen and beeps once every minute as a reminder that the battery pack needs to be charged. Below 6.1 Volts, the instrument automatically turns off the backlight to prevent further power draining. Below 80% battery capacity, the instrument automatically begins to charge the batter y pack (if external power is supplied). At 5.5 Volts, the instrument automatically powers down. The power saver is anot her f eatur e tha t he lps c o nser ve po wer on the instrument – see section 3.4.6.

There is also an internal backup battery that backs up data and settings in the instrument in the event that the battery pack is detached from the instrum ent . The backup battery is kept char ged by the battery pack if the battery pack is functioning normally.

icon at the bottom right

WARNING

more than 2 hours as this will drain the backup battery, thereby causing data and settings to be lost.

The battery pack can be charged by supplying 13.5 ± 1.5VDC, 1A power to the instrument charger socket. The power transformer supplied in the k it provides t his DC voltage . The optio nal car ad apter charging lead may also be used to charge the battery pack in a vehicle with a 12-Volt negative-chassis power system.

WARNING

transformer used is an approved ins trument po wer transform er (13.5 ± 1.5VDC, 1A output) and that the voltage and frequency of your mains AC power match that of the power transformer.

: Do not detach the ba ttery pack from the instrument for

: Before charging the batter y pack, ensure that th e power

3.4.2 Checking Battery Capacity

• Press Sys

The remaining battery capacity and voltage are displayed.

3.4.3 Charging Powered-up instrument

WARNING

• Plug the instrument power transformer into a standard power

outlet and its connector to the instrum ent charger socket. If the battery capacity is less than 80%, charging begins automatically.

• If charging does not begin automatically, press Sys ! Charge

Batt Charging, as ind icated b y the

begins.

If the on. Charging stops automatically when complete or you can press Sys ! Charge Batt to stop it. A full charging cycle takes approximately 150 m inutes. All other functions are usable while the battery pack is being charged.

: See the warnings in section 3.4.1.

icon in the dropdo wn menu,

icon is not displayed, ch eck that the mains power is turned

3.4.4 Charging Powered-down instrument

WARNING

• Plug the instrument power transformer into a standard power

outlet and its connector to the instrument charger socket. The instrument powers up and charging, as indicated by the flashing “CHARGING” message beside the Charge Batt option in the Sys dropdown menu, begins.

: See the warnings in section 3.4.1.

If the instrument does not power up, reset the instrument (see section 3.1), or unplug the power transformer connector and re-plug it in. See also section 3.4.3 notes.

3.4.5 Reconditioning Battery Pack

WARNING

Battery reconditioning is the process of first discharging and then charging batteries. It reduces the undesirable memory effect in NiCad batteries. The batter y pack should be reconditioned when it is first used (for its capacity to be displayed correctly) and monthly thereafter (to prevent battery d egr adatio n). T o recondi tion th e batter y pack:

• Plug the instrument power transformer into a standard power

outlet and its connector to the instrument charger socket.

• Press Sys ! Recondition Batt.

After discharging the battery pack, the instrument automatically proceeds to charge it. See also section 3.4.3 notes.

: See the warnings in section 3.4.1.

3.4.6 Power Saver

Everytime the instrum ent is powered up, the power sa ver – a power saving feature – is automatically turned on. With the power saver turned on, the following occurs autom atically if no keys are pr essed for a period of time, after 8 minutes the LCD is turned off (but any key press will turn it on a ga in) a nd af ter 1 5 minutes, the instrument is powered down. To turn the power saver on or off:

• Press Sys ! Power Saver.

3.4.7 Replacing Battery Pack

• Lift the boot stand.

• Unscrew the battery pack and screw in the new one using a

suitable screwdriver or coin.

WARNING

not over-tightened – to the instrument .

: Ensure that the battery pack is securely fastened – but

3.5 ERASING MEMORY

WARNING ALL

recordings in the instrument .

Before erasing data, you may wish to archive it on your PC (see section 4.3). To erase all folders and recordings:

• Press File ! Erase ALL Memory…

• In the Erase All ! window, press

for the data to be erased.

To erase only one particular recording or folder, see section 2.5.

WARNING:

default settings. All locked folders and files will be erased.

: Following the proce dure below erases

and together and wait

Erase All Memory will reset the instrument to factory

ALL

folders and

3.6 TROUBLESHOOTING

3.6.1 Power Problems

Symptom Cause Remedy

Instrument cannot powerupLow battery capacity

Electrostatic discharge (ESD) exceeding 8kV

Instrument powers down when backlight turned on

Instrument powers down shortly after powering up

Flashing icon and beeping every minute

Low battery capacity Charge battery pack

Charge battery pack Reset instrument

3.6.2 Data Problems

Symptom Cause Remedy

Data lost when battery pack detached for more than 2 hours

Data lost when battery pack detached for less than 2 hours

Flat backup battery Charge battery pack

Faulty backup battery Send instrument

authorized dealer for servicing

“Insufficient memory” displayed

Measured data seems incorrect

No memory sp ace left for recordings

Sensor wired wrongly

Faulty sensor

Erase obsolete recordings (transfer to PC first if necess a r y)

Wire as recommended

Replace sensor

3.6.3 Data-Transfer Problems

Symptom Cause Remedy

“No PC ?” displayed, and data cannot be transferred to PC

MAS

-3000 unable to transfer data and “Transfer failed” or “ Dialog” displayed on PC

MAS

Error

Data-transfer cable not properly connected

Data-transfer cable connected to wrong PC COM port

Baud rate setting in OM-

MAS

3000

Baud rate setting in OM3000

MAS

too high

Re-secure cable connections

Test COM port availability and use available port

Select a lower baud rate in OM-3000

MAS

3.6.4 Other Problems

Symptom Cause Remedy

Instrument does not respond to any key press

“Module fault” displayed Module‡ damaged Send instrument to

Electrostatic discharge exceeding 8kV

Reset instrument

authorized dealer for servicing

“Switch off then connect module” displayed

Module not properly plugged into instrument

Power down instrument then re-secure module, making sure not to bend the connection pins

The “module” is the measurement hardware unit of the instrument . It has the six

‡

temperature measurement channels and 4 voltage measurment channels att ached to it and is fastened to the rest of the instrument

by means of two M3x0.5x12mm screws.

ANALYSIS

SOFTWARE

Recordings made on your instrument can be transferred to the software running on a Windows

easurement Analysis Software.

analyse, print & export your recordings. It is assumed that the user of

Windows Windows commands.

Note

WARNING



commands. Please ref er to the appropriate lit erature on



if clarification is needed on mouse and keyboard

Throughout a comprehensive topic-specific the right mouse but ton an ywhere in up menu of the applicable commands.

: Read section 1.4 before operating your instrument .

MAS

, pressing F1 on your keyboard will bring up



based PC.

MAS

can be used to stor e, graph,

MAS

is already familiar with basic

Help screen

MAS

stands for

. Also, clicking

will bring up a po p-

MAS

4.1 INSTALLING OM-3000

MAS

4.1.1 License Agreement

Please read the license and warrant y agreement printed on the CD cover found in the jewel c ase that t he

MAS

is licensed for individual use and for installation on one computer. The software contained on the CD-Rom remains the intellectual proper ty of OMEGA Engineerin g who retain the tit le and ownership of the software.

MAS

CD-Rom was suppli ed in.

4.1.2 PC System Requirements

The following are the minimum system requirements for installing

MAS

• Pentium or better

• 32MB RAM (64MB recommended)

• 10MB hard disk space

• CD-Rom drive

• Windows

• An unused COM Port for communication with the instrument



95, 98, Me, NT or 2000 operating system



compatible displa y and print er



compatible mouse or other pointing device

4.1.3 Installing OM-3000

• Close all programs on your PC.

MAS

on PC

• Insert the

• Wait for the

OR Run the

• Follow the instructions given to complete the installation.

MAS

CD-Rom into the CD-Rom drive.

MAS

Installation program to automatically start.

MAS

Install.exe program located on the CD-Rom.

4.2 STARTING UP

MAS

4.2.1 Starting up

• Click Start ! Programs ! OM-3000 ! OM-3000 MA S 5.00

4.2.2 Configuring PC COM port

• To allow data transf er between the instrument and t he PC, you

must first configure your PC COM port as follows:

• Connec t the instrument to one of the COM ports usin g the data-

transfer cable and power up the instrument .

• Click Tools menu! Configure COM port.

• Select the COM port that the instrument is connected to.

• Select a baud rate. The baud rate is t he speed (in bits/secon d) at

which data is trans ferr ed. The lo wer t he baud rate, the less lik ely are data-transfer err ors. Automatic is the default cho ice as it is sufficient for normal transfers.

• Click Test port

• Click Yes in the Confirm window to test the connection.

Connection failure may be due to the selection of the wrong COM port in connectors being not p lugged in properly, or the PC serial port being not set up properly. If the con nection is good, co ntinue as follows:

• Click OK in the sec ond confirm windo w to acknowledge that t he

instrument is attached to the COM port.

• Click OK to leave the 60

MAS

, the instrument being not powered up,

MAS

Configuration window.

4.3 TRANSFERRING DATA TO

THE PC

Data transferred to the PC is stored in and have the .das extension. To transfer data from the instrument to the PC:

• Turn on the instrument Check its battery capacit y and if less than

30%, charge the battery pack.

• Connect the RS232 por t of the instrument to the configured PC

COM port using the data-transfer cable. On the PC click the Receive button.

• On the instrument , press File menu! Examine F iles… Use the

arrow keys to select the individual recording or folder to be transfered. If a folder is highlighted, all recordings within the folder will be transferred.

• Press

Once the data-transfer is complete, the data will appear in the current file in a new file.

• To append more data fr om the instrument to the c ur rent f i le, c lic k

the Receive button.

• Alt ernatively, to receive more data but in its own new file, click

File menu ! Receive from OM-3000 ! Transfer to a New File.

SndToPC to send the selected recording or folder.

MAS

or if no files wer e ope n, the d ata wi ll app ear i n

MAS

files. These are text files

• To save the data in the current file, click the Save button, nam e

the file and click Save. If the file was an already existing file, clicking the Save button will autom aticall y save the fil e under th e same name and in the same location on the PC.

4.4 MANAGING DATA

4.4.1 Opening a File

• Click Open button and select the file.

4.4.2 Merging Two Files

• Open one of the files.

• Click File m enu! Import & Merge a file… and select the other

file to be merged into the open file.

The merged data can be viewed but is not autom atically saved on the computer. To save it, click File menu! Save or Save As.

4.4.3 Using the Navigator

When a file is open, the navigator that consists of two boxes is displayed on the left side of the s creen. The top box shows all the folders in the file. The bottom box shows all the recordings in the selected (highlighted) folder above.

4.4.4 Deleting Data from a Folder

• Select the folder in the Folder section of the navigator.

• Using the navigator, select the individual recordings and/or

channels to be deleted.

• Click File ! Delete, or press the Delete key. You will then be

prompted to confirm that you wish to delete the selected recordings/channels

4.4.5 Editing Recording De tails

• Select the folder, and th en the recordin gs and/or channels to be

edited.

• Click the Info tab to access the Info page wher e you can e dit the

User Details (eg. Company Name, instrum ent serial number…), Folder Name, and the Recording Details (eg. recording name,

remarks, channel labels and un its …) .

• From the Edit User Details screen there is access to edit the

Default User Details. These values are written to all future

recordings, while they are being transferred from the instrument .

4.4.6 Viewing and Printing Da ta Values

• Open the file and using the navigator, select the recordings

and/or channels to be viewed and/or printed.

• Click the Values tab. T he data in the selec ted recordings and/or

channels can now be viewed.

• To change the value in a cell, clic k the cell and type in the new

value.

• To reduce the amount of data by averaging, click the Average

button.

• To print the data, click the Print button.

• To copy the values to a s preadshee t progr am , click the Copy (to

clipboard) button, go to the Spreadsheet program and use its' "Paste" command.

• To print a report on the data, click File ! Summary Report

Full Report** and s elect the pr int option in the Data Summary or Report Generator window that appears.

§ The Summary report produces a data summary about the selected recordings/channels. For more information consult the MAS help file.

4.4.7 Exporting data

• In the Navigator select the folders or r ecordings to be exported

as a .das file.

• Click File ! Export and select the option required.

• Provide the nam e and location of the export file t o be produced

and then click the Save button.

** The Full report produces an exact printout of the pages selected in the report generator window. For more information consult the MAS help file.

4.5 CALCULATING DATA

You can perform calculations on your r ecorded d ata b y creati ng ne w "calculated" channels:

• Open the file and using the navigator, select the recordings

and/or channels to be used in calculations.

• Click the Values tab to displa y the data and click the Calculate

button to access the Calculate window.

• Each channel is automatically given a "

used to identif y the channel. It is a lett er of the alphabet t hat c an be used to reference the values of a recording for use in calculations.

• Expressions can then be derived using the provided functions

and the channel tags

eg. TempChange = ChangePerHr(B) with units degC/hr

This example will create a channel called "TempChange" which is calculated as the rate of change per hour of the channel which has tag 'B'.

• Constants can also be used in calculations. You may need to

use constants in your expressions, for example:

To find the "difference from the mean value" for a particular channel, say the channel represented by "

A constant should be defined to provide the mean value of channel 'D', "K0 = Mean(D)"

This constant is then used in the express ion, "DiffFromMean = D – K0"

††

tag

" 'D'.

tag

" character that is

See Appendix OM-3000

††

MATH for a complete list of functions available.

MAS

4.6 PLOTTING DATA

4.6.1 Plotting Single and Individual Charts

• Open the file and using the navigator, select the recordings

and/or channels to be plotted.

• Select the Chart tab and click the Plot button. You can also plot a

recording or channel by double-clicking it in the navigator.

• To display the selected recordings and/or channels on individual

charts, click the Individual button.

• To change the format of charts, click the Adjust button to access

the Adjust Axes & Colors window. This window allows for changes to be made to the axes and colors of the plotted recordings displa yed on the chart.

• To clear all plotted recordings, click Chart menu ! Clear Chart.

To retain existing plots when adding to the chart, click the Hold button. A maximum of 16 plots can be displayed at a time

To enlarge a chart, you can hide the legend by clicking Chart menu

! Show Legend. You can also Hide the navigator by clicking Window menu ! Show Navigator.

4.6.2 Zooming & Panning

To zoom in on any part of a chart:

• Click a point to the left of that part of the chart and drag a

rectangle across and down to the right over the section to be enlarged (while holding down the lef t mous e butt on) . Re le ase th e mouse button to perform the zoom.

To zoom in horizontally:

• Proceed as above, but only move the m ouse direc tly up or down

to select the area to be enlarged. Two horizontal lines will be displayed across the chart to indicate the selection.

To zoom in vertically:

• Proc eed as abov e, but onl y move the m ouse dir ectly lef t or ri ght

to select the area to be enlarged. Two vertical lines will be displayed across the chart to indicate the selection.

To unzoom from any view:

• Left click on any point in the chart and drag a rectangle up and to

the left to display a rectangle with a cross in it. When the m ouse button is released all zoom ing will be undone and the char t will be returned to its original view.

Panning

• T he chart displayed can be dragged i n any direction to dis play

sections that are hidden from the current view. To pan around the chart click and h old down th e right m ouse but ton in the chart display. The curs or will turn into a pointing hand icon. Drag the mouse pointer in the direction that you wish to move the chart.

Note:

If you move the cursor of f the chart, you will have to re lease the right mouse button and return it to within the chart boundaries to continue panning.

4.6.3 Printing Charts

• Click Print while the chart is displayed and choose the color

scheme for printin g (e.g. Black & White, Full Color or Color on White bkgnd)

4.6.4 Reading and Comparin g Values

To place cursors on charts to read the data values on curves:

• Plot the recordings and/or channels on a single chart.

• To place a cursor at a particular point on a curve, place the

mouse cursor at that point, follow the curve until a crosshair appears, and then click the left mouse button. If the default cursor options are used, the cursor com prises a hori zontal and a vertical dashed l ine, and the values ind icated by the cursor are displayed at the edge of the chart next to the dashed lines.

• To move the cursor to a differ ent point on t he sam e curve, pres s

the horizontal arro w k e ys. T o move in small steps , hol d d o wn the Ctrl key when pressing t he horizontal arrow ke ys. You can also move the cursor by clicking the left mouse button on the new point (first allowing a crosshair to appear).

• To move the cursor t o a different curve, push the vertical arrow

keys. Alternativel y, click the left mouse button on the new curve, or on the appropriate symbol on the legend.

• To place a second c ursor on the chart, place th e mouse cursor

at the point of interes t, foll ow the cur ve u ntil a cros shair ap pears , and then click the right mouse button. If the default cursor options are used, the dif ference be tween th e values indicate d by the cursors is shown at the t op right corner of th e char t. Curs or A corresponds to left mouse button and cursor B to the right.

• To toggle the focus between t he cursors, push the spac e bar, a

cursor must be focused before it can be moved using th e arrow keys. A cursor is focused if it has a rectangular target.

• To clear the cursors, push the Esc key.

• To change cursor options, click Chart menu ! Cursor Options....

EXAMPLE

cursors displayed (using the default cursor options).

Each cursor displ ays the x and y axis va lues and the difference in both the x and y axis values of the two cur sors in the top rig ht hand side of the chart.

: a two-channelled temperature recording with both

4.6.5 Plotting Waterfall Charts

• Plot the recordings and/or channels on a single chart.

• Click Chart menu ! Waterfall Chart and select the depth

required.

Waterfall charts are useful for trending data behaviour. As on ordinary charts, cursor and zooming functions can be used on waterfall charts.

EXAMPLE

to three sets of data pertaining to the same measurement point. It can be seen that the peak value has a rising trend.

: the four curves on the waterfall chart below correspond

4.7 UPGRADING FIRMWARE

When an upgraded instr um ent firm ware versio n is a vaila ble, it wil l be posted on the OMEGA website. Once you have obtained the firmware file, the firmware can be upgraded using the reprogramming procedure below.

WARNING

• Check the instrum ent battery capacity and if it is less than 30%

charge the battery pack.

• Connect the RS232 por t of the instrument to the configured PC

COM port using the data-transfer cable.

• Po wer up the ins trument and tr ansfer an y data you wish to keep

• In

Reprogram window click the Reprogram button! Automatic search.

: Upgrading the firmware erases all data in the instrument.

MAS

on a PC.

MAS

click Tools menu! Reprogram OM-3000. In the

• Click Select Drive to Search a nd select the drive wher e the ne w

firmware version is located.

• Click Start S earch, and when the sear ch is com pleted select the

new firmware file.

• Click Start Reprogram using this file. Once the reprogramm ing is complete, the instrument will be ep and

the Initialisation scr een will appe ar. If an error oc curs, check that the data-transfer cable has been connected properly and that the instrument is powered up.

Appendix

SPECIFICATIONS

The following are the specifications for:

• instrument firmware version 2.10

MAS

• These specifications may be changed in future versions.

software version 5.00

Model:

OM3000-T6V4

Specifications

Range

T Type Thermocouple E Type Thermocouple J Type Thermocouple K Type Thermocouple Voltage Common Mode Range

Resolution

Temperature Voltage

Accuracy

Temperature Voltage Common Mode Error

Minimum Sampling Interval

Data Logging

Data Storage Format

Data Storage

Folder Name

Display

Resolution Viewing Area Backlight

Repro gram Allows internal firmware to be upgraded via built -i n serial port

Communications

Baud Rate

Channel Organiz a tion Termination

Temperature Voltage

Input Impedance

Temperature Voltage

Isolation

Battery

Type Voltage Capacity Operating Time

Charger & Conditioner

Fast Charge Rate Discharge Rate

Mechanical

Size Weight

Environmental

Temperature/Humidity Operating

Storage EMC

6 Temperature Chan n els Incorporating 4 Voltage Channels

-418 to +743°F (-250 to +395°C)

-418 to +1823°F (-250 to +995°C)

-346 to +2183°F (-210 to +1195°C)

-418 to +2498°F (-250 to +1370°C) ±5VDC and ±30VDC (user-selectable) ±30VDC (voltage channels only)

Above -148°F (-100°C): 0.1°F or °C At or below -148°F (-100°C): 1°F or °C ±5VDC: 200µV (0.0002V) ±30VDC: 1mV (0.001V)

Above -148°F (-100°C): ±0.1% of reading ±0. 9°F ( 0.5°C) At or below -148°F (-100°C): ±1% of reading ±0.9°F (0.5°C) ±5VDC: ±0.3% of reading ±0.6mV ±30VDC: ±0.3% of reading ±3mV

0.1% of common mode voltage Number of channels

selected (userselectable)

1 2 3 4 5 6 7 8

Up to 50 named folders Multiple recordings per folder Recording length: 1 sample … entire memory

512 kilobytes – approximately 400, 000 indiv idual data points

Up to 16 alphanumeric characters LCD with graphic capabilities

240 x 128 pixels

4.3" x 2.3" (110mm x 60mm) Electro-luminescent

RS232 9600, 19200, 57600 bits per second

Any combination of up to 8 channels for any recording

Sockets accept miniature thermoc ouple twin blade plug Screw terminals

Channels 1, 2, 3, & 4: greater than 100k Channels 5 & 6: 30k Channels 7, 8, 9, & 0: 2M

50VDC minimum Between inputs and

Custom Nickel-Cadmium pack

7.2V nominal 1500mAh nominal 13 hours nominal with backlight off, 7 hours nominal wi th backlight on

Built-in dual rate charger – automatic and m anual c ontrol

0.7A nominal

0.5A nominal

9.7" W x 6.1" L x 3.0" H (247mm x 154mm x 75mm)

4.4lb (2kg)

32°F to 122°F (0°C to 50°C) / 80% RH 32°F to 86°F 70% RH 32°F to 122°F 14°F to 140°F (-10°C to 60°C) / 95% RH EN50081-1 EN50082-1

Voltage channels only selected (seconds)

0.2

0.3

0.4

0.5

Ω

Temperature or temperature and voltage channels selected (seconds)

0.2

0.3

0.5

0.6

0.7

0.8

0.9

1.0

Remarks

Operating temperature range is determined by operating range of thermocouple.

Differential inputs. Voltage allowed between channels and input ground.

Effective resolution decreases at or below -148°F ( - 100°C).

Temperature measurement accuracy depends on

and thermocouple accuracy. Only

T6V4

accuracy is given here. (23 ± 5°C), charger off. See Appendix Optimizing Temperature Accuracy.

Minimum time to scan all channel.

Sampling interval is programmable from 0.2 seconds to 60 hours.

User-specified name entered from keypad. Each recording has unique time/date stamp. Supports long recordings by chaining 60,000 data point recordings. Each ample contains one data point per channel.

Non-volatile memory (battery backup). Number of samples depends on the number of recordings and the variability of the readings.

Download firmware updates from the Omega website. 15kV ESD protected. Cable with DB9 connector included.

Automatic baud rate selection. Channels 5 & 9 and 6 & 0 are shared.

Blades spaced 5/16" (7.9mm) center-to- c enter.

Terminal-to-terminal. Terminal-to-terminal (channels 5 & 9 and 6 & 0 are shared). 1MΩ per terminal to input ground.

No isolation between channels.

Power transformer (13.5 ± 1.5VDC, 1A output ) included in kit.

2.5 hours for complete charge nominal. Combats Ni-Cad battery memory effect.

Including protective boot. Including protective boot and strap.

Non-condensing. Non-condensing.

Radiated and conducted emissions. RF field, ESD and fast transient immunity.

OM3000-T6V4

temperature 73 ± 9°F

selected channels - not each

outputs e.g. RS232 port.

OM3000-

OM3000-T6V4

Appendix

Application Notes

6.1 Application Note 1

Using the

Description

The internal circuitry of the one of eight differential input channels (8 channel multiplexed differential input A/D converter).

Four of these multiplexed inputs are dedicated to measuring

•

thermocouple voltages (CH1 to CH4).

Two multiplexed inputs are dedicated to measuring voltages up to

•

30VDC through resistive dividers (CH7, CH8).

The remaining two multiplexed inputs share resistive dividers (CH9 and

•

CH0) with an additional two thermocouple channels (CH5 and CH6 respectively). These inputs can be used for either (but not both) voltage or temperature measurement, depending on the channel number selected.

All channels (and the module ground) are isolated from instrument circuitry and the serial cable, battery etc. If only one channel is connected, then there is no need to consider the effects of common mode voltage or AC noise.

Module’s Common Mode Inputs

T6V4

module measures low-level signals from

internal

However, the channels are not isolated from each other. Each channel has differential inputs (ie. they measure the voltage between +ve to -ve), which allows non-isolated voltage sources to be measured provided:

common mode voltage restrictions are observed;

•

the effect of common mode voltage on accuracy is understood; and

•

channel-to-channel leakage current through the

•

allowed.

Restrictions

T6V4

module is

For safety:

respect to ground potential) to any input pin. This includes thermocouples that are not isolated but measuring the temperature of a metallic object at high voltage.

WARNING: The isolation within the

To avoid damage:

thermocouple input pins, or greater than 5V between any thermocouple input pin and module ground. (This will damage the protection diodes in the multiplexer – see the “ Example: To measure the temperatures of both terminals of a 12V battery it is essential to use isolated thermocouples.

To avoid incorrect readings:

input to exceed + or - 5V with respect to the module ground. (This ground will float to some intermediate value depending on the voltages present on voltage and thermocouple input pins.) If any one input pin goes out of this range, all inputs may read incorrectly. Example: Measuring voltage from a 12V battery on CH7 while measuring temperature on CH1 from a nonisolated thermocouple at a potential greater than the battery positive – current will flow in through the thermocouple wire, through the input of the multiplexer, and out through the resistive divider of channel 7. This may cause either or both of the readings to be completely incorrect.

Do not apply voltages greater than SELV (see Section 5) (with

module is not intended to

T6V4

protect the user from hazardous voltages.

Do not apply more than 10V between any of the 12

T6V4

Module Equivalent Input Circuit” diagram below).

Do not allow any voltage on any multiplexer

To minimize common mode errors:

channels is as small as possible, or at least smaller than the voltages being measured. The best way to do this is to isolate the input sources, in that way the instrument voltage. Sometimes this is not possible, for example when measuring motor current with a shunt and motor voltage, or measuring the temperature of both sides of a power diode (less than 1V across it) by directly soldering on thermocouples. In these cases, common mode errors need to be kept in mind or checked (see examples 1 and 3).

input circuitry itself holds all input sources to the same

Ensure the voltage difference between

To avoid problems with common mode noise:

(See Application Note 2) When isolating signal sources, ensure that the impedance of this isolation is significantly higher than the

instrument's

input impedance (for AC signals too). If this is not so, common mode voltages applied may be larger than when they were not isolated. Example: long cable and thermocouple runs, when isolated, may act as aerials and pick up large AC voltages (say 50VAC) which would overload the input of the multiplexer, resulting in erroneous readings or even damage.

Module Equivalent Input Circuit

T6V4

Protection

Diodes

(CH7, CH8, CH9, CH0)

+5V

Four Voltage Inputs Like This

Two Sha r ed Thermocouples

Four More Dedicated Thermocouple Inputs Like This

-5V

Protection

Diodes

+5V

-5V

Switch

Array

A/D

Inputs

150k

Equivalent Input

Structure

Switch

Array

Ω

Examples on Application Note 1

Differential measurements can be confusing to understand. The best way of explaining is with examples.

Example 1:

+24V

- +

Example 2:

Measuring supply current and supply voltage to a DC motor.

24-Volt Motor

+ -

Max 30 Volts DC on Volta ge Inputs

123456

GND-7+-8+-9+-0+GND

Measuring signals in a multi-channel 4-20mA system.

Max 30 Volts DC on Voltage Inputs

123456

GND-7+-8+-9+-0+GND

Example 3:

Measuring case temperature of both sides of a forward

conducting power diode while it is operating at SELV (saf ety extra low voltage).

Ma x 30 Vol t s D C o n Vol ta ge Inp ut s

123456

GND-7+-8+-9+-0+GND

6.2 Application Note 2

Instrument Grounding

In an industrial environment it is common to have AC and/or DC voltages between conductive surfaces that are not bonded together. Conductors that are assumed to be isolated may in fact have a DC leakage, a 50Hz/60Hz AC voltage from inductive or capacitive coupling, or a continual presence or bursts of r.f. voltage (emc).

When using the instrument to measure DC voltages that are not referenced to ground (ie. one point bonded to ground by a low impedance), then connecting a thermocouple to another conductive surface can cause the voltage readings to alter (i.e. become incorrect). It is necessary to check for errors, by observing the voltages while connecting the thermocouple.

In such an environment it is recommended that the metal surface to which the thermocouple is connected, is grounded or wired to the GND terminal of

T6V4

the

module, as shown in examples 1 or 2.

Note

: 1. Because the GND terminal on the

of the allowable differential voltage range, if the ground of a grounded PSU is connected to the GND terminal, the PSU voltage may not exceed 30V (e.g. do not connect a grounded 48V supply to the instrument

2. Uninsulated thermocouples cannot be used for measuring temperatures of conductive surfaces that are of different voltages.

T6V4

module is the center

as in example 3).

Examples on Application Note 2

Example 1:

+24V

- +

Example 2:

+24V

- +

Connecting an isolated PSU to the instrument with thermocouples on a grounded or isolated conductive surface.

Max 30 Volts DC on Voltage Inputs

123456

Ground Wire

+12V

Connecting a grounded PSU to the instrument

GND-7+-8+-9+-0+GND

with

thermocouples on a conductive surface.

Optional Ground Connecti on

Max 30 Vo lts DC on Voltage Inputs

Ground

+12V

123456

GND-7+-8+-9+-0+GND

Ground

Example 3:

Grounding to the instrument

GND terminal with a PSU with -ve to

ground.

Grounded PSU

Max 30 Volts DC on Vo ltage Inputs

123456

+ -

Ground

GND-7+-8+-9+-0+GND

Other Voltages

The PSU voltage is limited to +30V, and any other non-isolated voltages m easured are limited to within the range of -30V to +30V relative to ground.

Appendix

Optimizing Temperature

Accuracy

For optimum accuracy when measuring temperature, the internal temperature needs to be stabilized.

This is best achieved by connecting the thermocouple, turning the

instrument

Begin your actual measurement or recording immediately after the 30-minute stabilization period.

For optimum accuracy, the battery charger should not be operated while measuring temperature.

The “power saver” must first be turned off – see Section 3.4.6 for more details.

‡‡

on and then leaving it on for 30 minutes‡‡.

instrument

Appendix

OM-3000

MAS

MASMAS

The following are the mathematical functions and operators that can be used in OM-3000

The symbols A,B,C,… represent channel tags; and L1, L2, …, Ln represent logical expressions (e.g. int(A) > 3).

The notation used for functions and operators is similar to that used in common computer-programmin g lang uag es and spreadsheet programs.

MAS

calculations.

MATH

8.1 FUNCTIONS

8.1.1 Mathematical Functions

Function Meaning

Abs(A) Absolute value Cos(A) Cosine Deg(A) Convert from radians to degrees DegC_to_DegF(A) Converts Celsius to Fahrenheit DegF_to_DegC(A) Converts Fahrenheit to Celsius Exp1 Base of natural logarithm, e (constant) Exp(A) Exponent Frac(A) Fractional part Int(A) Integer part Ln(A) Natural logarithm Log(A) Base 10 logarithm Max(A, B, … ) Return the maximum value Min(A, B, … ) Return the minimum value N Sample number (starting from zero) Pi Power(base, power) base to the power of power e.g.

Rad(A) Convert from degrees to radians Round(A) Rounded value Sgn(A) Sign (-1 if negative; +1 if positive; 0 if zero) Sin(A) Sine

(constant)

Pow(A,3) gives A Pow(3,k1) Pow(A,B)

Function Meaning

Sqr(A) Square Sqrt(A) Square root Tan(A) Tangent ChangePerDay(A) ChangePerHrs(A) ChangePerMin ChangePerSec SumOverDays SumOverHrs SumOverMins SumOverSecs

Rate of change (differentiation) e.g. If channel ‘A’ changes smoothly from 10 to

25 over a 1 minute period, then ChangePerMin(A) will be 15 over that period.

Summation over time (integration) e.g. If channel ‘A’ is a 2hr recording with all

values = 3.5, then SumOverHrs(A) changes smoothly from 0 to 7 over the recording.

8.1.2 Iterative Functions

The following iterative functions can be used for constants only. Cell level expressions cannot contain iterative functions.

Function Meaning

Count(A) Number of sample s Maxsample(A) Maximum sample value Mean(A) Mean Minsample(A) Minimum sample value Stddev(A) Standard deviation Sum(A) Sum

8.1.3 Logical Functions

Function Meaning

AND(L1, L2, …, Ln) Logical AND e.g.

AND(n = 10, k2 > 0.5, k3 > 0.5, k2 <> k3) False Logical constant, has value 0 OR(L1, L2, …, Ln) Logical OR e.g.

OR(k0 = True, k1 < 3, n >= 30) True Logical constant, has value 1 AOR(L1, L2, …, Ln) Logical AOR (exclusive OR) e.g.

AOR(k0 = True, k1 < 3, n >= 30) NOT(L1, L2, …, Ln) Logical NOT e.g.

NOT(k1 =True, k2< 10, n>30)

8.1.4 Conditional Functions

Function Meaning

IF(L1, true result, false result)

If logical expression L1 is true, execute true result, otherwise execute false result e.g.

IF(k2 > k3, k2*A, k3*A) IF(k0 = True, n, n*2) IF(n < 10, n, Log(n))

8.1.5 Date and Time Functions

In OM-3000 floating-point number. The integer part of the number represents the date: it is the number of days since the first day of 1 AD. The fractional part of the number represents the time: it is the proportion of time that has passed since the beginning of the day.

Function Meaning

Date(year, month, day)

Time(hour, minute, second, ms)

Elapsed(sample number)

SampleDate(n) Date of the nth sample SampleTime(n) Time of the nth sample

MAS

, the date and time value of when a sample is taken is a

Return the date in OM-3000 format e.g.

Date(1999, 07, 25) Return the time in OM-3000

format e.g. Time(16, 59, 31, 965) Return the date and time of the

sample in OM-3000 DAT(36)

MAS

format e.g.

MAS

8.2 OPERATORS

8.2.1 Logical Operators

Operator Meaning

< Less than <= Less than or equal to <> Not equal to = Equal to >= Greater than or equal to > Greater than

8.2.2 Arithmetic Operators

Operator Meaning

+Addition – Subtraction / Division * Multiplication

The order of precedence is as in standard arithmetic (i.e. /, *, +, –). An operand between two operators of different precedence is bound to the operator with higher precedence. An operand between two equal operators is bound to the one on its left. Expressions within parentheses are evaluated before being treated as a single operand.

Omega Products OM-3000 Installation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

INTRODUCTION

UTILITIES