eopm tide system user manual (lo res)

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EOPM Tide System High Accuracy Barometrically Compensated Tide Measurement System

with Excell ® Oceanographic Pressure Module and Internal Data Logging

User Manual

March 2005

P/N A177-030

Falmouth Scientific, Inc.1400 Route 28A

Cataumet, MA 02534

Tel: (508) 564-7640Fax: (508) 564-7643



EOPM Tide System User Manual March 2005

ii

The information, descriptions and illustrations in this manual are the property of

Falmouth Scientific, Inc. (FSI), and may be disclosed only to those persons or

organizations specifically authorized by FSI. Duplication of any part of this

manual is strictly prohibited unless authorized in writing by FSI.



P/N A177-030

iii

About This ManualThis manual provides a general overview and the installation and setup

instructions for the Falmouth Scientific EOPM Tide System. The EOPM Tide

System provides accurate, barometrically compensated remote measurements of tide by integrating a Falmouth Scientific Excel ® Oceanographic Pressure Module

(EOPM) with a barometer. Acquired data are stored in the EOPM and can be

downloaded at any time to a computer or transmitted over an RF link.

For additional information about the EOPM instrument, refer to the “EOPM

Operation Manual” included with the system.

Customer ServiceFSI welcomes your feedback. Please contact FSI customer service to offer any

comments or suggestions or to request technical support. FSI can be contactedusing any of the following means:

Mail

FSI, Inc.1400 Route 28A

Cataumet, MA 02534

Telephone or Facsimile

Tel: (508) 564-7640Fax: (508) 564-7643

E-mail

[email protected]

For more information about Falmouth Scientific, please visit our Web site at

www.falmouth.com.




iv

Table of ContentsAbout This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii

Customer Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii

SECTION 1: Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

EOPM Main External Components . . . . . . . . . . . . . . . . . . . . . . 1-1

NEMA Enclosure Main Components . . . . . . . . . . . . . . . . . . . . 1-3

SECTION 2: Unpacking and Setup . . . . . . . . . . . . . . . . . . . . . . . 2-1

Unpacking the EOPM Tide System . . . . . . . . . . . . . . . . . . . . . 2-1

Standard Items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Optional Items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Installing and Starting CTDPro . . . . . . . . . . . . . . . . . . . . . . . . . 2-2Installing CTDPro . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Starting CTDPro . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Communication Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

RS-232 Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

RS-485 Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Setting up and Connecting the EOPM TideSystem Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Mounting the NEMA Enclosure . . . . . . . . . . . . . . . . . . . . . . 2-4

Connecting the EOPM Tide System with theRS-232 Serial Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Connecting the EOPM Tide System with theRS-485 Serial Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

SECTION 3: Acquiring, Downloading and Viewing Data . . . . . . 3-1

SECTION 4: Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

NEMA Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

EOPM Instrument . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

SECTION 5: Connector Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1



1-1

P/N A177-030

SECTION 1: Introduction

he Falmouth Scientific EOPM Tide System integrates a FalmouthScientific Excel ® Oceanographic Pressure Module (EOPM) with a

barometer to acquire accurate tide data in all atmospheric pressure

conditions. The EOPM, which is deployed underwater within a specified depth

range, acquires pressure data using a highly accurate, highly stable and fully

temperature compensated micromachined silicon diaphragm pressure sensor. The

barometer is contained, along with a battery and battery charger, in a remote,

surface mounted NEMA enclosure.

The main components of the system are shown in Figure 1-1 and consist of the

following;

• EOPM

• NEMA enclosure

• Serial cable

• Instrument cable

The EOPM connects to the NEMA enclosure with a 20-m instrument cable. The

NEMA enclosure is AC powered and supplies DC power to the EOPM and

includes a battery and battery charger for power backup should the AC power be

disconnected. The EOPM acquires and stores in 128 MB (256 MB optional)

memory both pressure and barometric data in separate data files. The data arerecorded continuously or at preset intervals at a sample rate of 20 Hz. For each

sample the time and date are also recorded. The data can be downloaded to a

computer at any time over an RS-232 or RS-485 serial interface at baud rates up to

115200 (over a short instrument cable), or output on an RF link. The computer

connects directly to the NEMA enclosure with a 2-m serial cable.

The EOPM is configured over the serial interface connection to the NEMA

enclosure using CTDPro, a Microsoft Windows® based software program

included with the system. With CTDPro you can also download, save and view

water pressure and barometric pressure data, processed tide data, and time and date

information. The data can also be exported to spreadsheet programs.

EOPM Main External ComponentsThe main external components of the EOPM are shown in Figure 1-1. The

pressure sensor is exposed to ambient pressure through a pressure port and an

oil-filled, removable capillary. The oil provides the required pressure coupling and

T



1-2 SECTION 1 Introduction


Figure 1-1: The EOPM Tide System Components

Instrument cable

Pressure sensor portCapillary tube

(Capillary tube removed)

8-pin bulkhead

Dummy plug

connector

NEMA enclosure

AC cordSerial cable

EOPM

Instrumentconnector

Serialconnector



1-3NEMA Enclosure Main Components

P/N A177-030

is an electrical insulator that prevents corrosion due to the dissimilar metal

compositions of the transducer and other metals. Capillary action ensures the oil

remains contained in the pressure port. A single bulkhead connector on the lower

end cap provides RS-232 and RS-485 digital communications and inputs external

power. A dummy plug is provided for connecting to the bulkhead connector whenit is not in use.

NEMA Enclosure Main ComponentsThe main external components of the NEMA enclosure are shown in Figure 1-1

and are the following:

Instrument connector. An 8-pin connector that connects directly to the

EOPM with the 20-m instrument cable.

Serial connector. A 5-pin connector that connects directly to a computerwith the 2-m serial cable.

AC cord. A 3-wire, 1.5-m long cord that connects to AC power.

Instrument cable. Connects to the instrument connector and to the EOPM.

Serial cable. Connects to the serial connector and to a computer.

The main internal components of the NEMA enclosure are shown in Figure 1-2

and are the following:

Battery. Provides backup power should the AC power be disconnected and is

kept charged by the battery charger.Battery charger. Charges the battery or maintains a float charge whenever

AC power is connected.

120/240 VAC switch. Selects either 120 VAC or 240 VAC operation. The

switch is located on the battery charger under the terminal strip and is factory

set to 120 VAC. The terminal strip must be removed to access the switch.

Barometer. Measures barometric pressure and outputs the pressure as an

analog signal to the EOPM for analog-to-digital conversion and storage in

EOPM memory.

Air vent. Provides atmospheric pressure input to the barometer.

Terminal strip. Provides all the required connections to the internal

components of the NEMA enclosure, to the EOPM and to a computer or RF

link.



E OP M T i d e S y s t em U s er M an u al

M ar ch 2 0 0 5

Figure 1-2: The Main Internal Components of the NEMA Enclosur

1 8

Terminal strip

120/240 VAC switchlocated on batterycharger under terminal

Air vent forbarometer

strip



2-1

P/N A177-030

SECTION 2: Unpacking and Setup

he NEMA enclosure of the EOPM Tide System must be connected to ACpower and to the EOPM. To configure the EOPM and to download data

from it, the NEMA enclosure must also be connected to an available serial

port of a computer running CTDPro. The default serial port that CTDPro uses is

COM1, and the default baud rate is 9600 bits/sec. However, any serial port

from COM1 to COM16 can be used, and baud rates of 300, 1200 and

19200–115200 bits/sec are additionally available.

Note: For baud rates of 19200 and higher, an instrument cable that is shorter

than 20 meters is recommended.

This section provides instructions on how to unpack the EOPM Tide System, how

to install and start CTDPro on your computer, and how to set the system up and

connect it to your computer using the RS-232 or RS-485 interface.

Unpacking the EOPM Tide SystemBefore unpacking the EOPM Tide System, check the shipping container for signs

of external damage. If the container appears damaged, report the damage to FSI

and to the freight carrier.

When unpacking the EOPM Tide System, inspect all the items for any apparent

damage and verify that all the items listed in the packing list are included in theshipment. Report any damage or missing items to FSI.

Standard Items

The following items are included with the EOPM Tide System:

• EOPM

• NEMA enclosure

• Instrument cable

• Serial cable

• CTDPro for Windows CD

• Dummy connector

• EOPM Operation Manual

• This manual

T



2-2 SECTION 2 Unpacking and Setup


Optional Items

The following item is optionally available for an RS-485 connection to a

computer:

• RS-485 Interface (includes converter box, power supply, andDB25 to DB9 serial port adapter cable)

Installing and Starting CTDProCTDPro must be installed on the computer to which the NEMA enclosure will be

connected. CTDPro is used to configure the EOPM, to download and save water

pressure and barometric pressure data from the instrument, and to process this data

into tide data.

Installing CTDProTo install CTDPro:

Exit all programs and turn off any virus protection or screen saver software.

Insert the CTDPro for Windows CD into your CD-ROM drive.

Select Start➤ Control Panel ➤ Add or Remove Programs.

The Add or Remove Programs dialog box opens.

Click Add New Programs, and then click CD or Floppy and follow the

instructions to install the software.

Starting CTDPro

To start CTDPro:

Select Start➤ All Programs➤ FSI Applications.

The FSI Applications menu opens.

Choose CTDPro.

CTDPro starts and the CTDPro Main window opens.

1

2

3

4

1

2



2-3Communication Interfaces

P/N A177-030

Communication InterfacesThe EOPM Tide System includes two communication interfaces for configuring

and downloading data from the instrument. The instrument is normally wired for

an RS-232 serial interface but can be wired for an RS-485 serial interface. (See“Connecting the EOPM Tide System with the RS-485 Serial Interface” on page

2-6 for instructions on how to wire the system for the desired communication

interface.)

RS-232 Interface

The RS-232 serial interface requires that your computer provide true RS-232 data

levels. Some older laptop computers do not support the negative output voltages

provided by the RS-232 standard and these computers may not work properly with

the instrument.

RS-485 Interface

The RS-485 serial interface requires the use of a converter box which is provided

with the optional RS-485 Interface. (See “Optional Items” on page 2-2.) Due to

specialized timing requirements, generic converters will not work properly. The

converter box that is supplied with the option must be used with the EOPM Tide

System.

Setting up and Connecting the EOPM Tide

System ComponentsIn addition to the components supplied with the EOPM Tide System, the following

items are required to set up the system, deploy the EOPM and connect the NEMA

enclosure to your computer:

• Mounting location for the NEMA enclosure

• Male DB25 to female DB9 serial port adapter cable

• An available serial port on the computer

• A 100–125 VAC or 220–240 VAC, 50–60 Hz power source

• RS-485 Interface (includes converter box, power supply, and DB25 to DB9

serial port adapter cable), for RS-485 interface connection only

Note: If you will be fabricating your own cables for connecting the EOPM and

your computer to the NEMA enclosure, see “SECTION 5: Connector Wiring,” for

wiring information on the instrument and serial connectors.





Mounting the NEMA Enclosure

Mount the NEMA enclosure in a suitable location, indoors or out, where the AC

power source is available and where the instrument cable can be connected to the

EOPM. The overall dimensional outline and mounting hole pattern for the NEMA

enclosure is shown in Figure 2-1.

Figure 2-1: NEMA Enclosure Overall Dimensional Outline and Mounting Hole Pattern



2-5Setting up and Connecting the EOPM Tide System Components

P/N A177-030

Connecting the EOPM Tide System with theRS-232 Serial Interface

A EOPM Tide System is shown set up with an RS-232 serial interface in

Figure 2-2. To set up the EOPM Tide System with an RS-232 serial interfaceconnection:

Disconnect the dummy connector on the EOPM.

Connect the instrument cable to the instrument connector on the NEMA

enclosure and to the bulkhead connector on the EOPM.

Deploy the EOPM as required.

Connect the serial cable to the serial connector on the NEMA enclosure and

to the DB25 connector of the DB25 to DB9 serial port adapter cable.

Connect the DB9 connector of the DB25 to DB9 serial port adapter cable to

the serial port on the computer.

Connect the AC cord to the AC power source. The black wire is AC high, the

white wire is AC neutral, and the green wire is ground.

Figure 2-2: EOPM Tide System Setup—with the RS-232 Interface

1

2

3

4

5

6

Laptopcomputer

EOPM

NEMA

AC cord

Serial cable

enclosure

Instrumentcable

DB25 to DB9serial port adaptorcable

Instrumentcable





Connecting the EOPM Tide System with theRS-485 Serial Interface

A EOPM Tide System is shown set up with an RS-485 serial interface in

Figure 2-3. When connecting the EOPM Tide System using the RS-485 serialinterface, the NEMA enclosure wiring configuration must also be changed. To set

up the EOPM Tide System with an RS-485 serial interface connection:

Open the NEMA enclosure.

Disconnect the wire from Terminal 2 of the terminal strip and connect it to

Terminal 5.

Disconnect the wire from Terminal 4 of the terminal strip and connect it to

Terminal 6.

Close the NEMA enclosure.

Disconnect the dummy connector on the EOPM.

Connect the instrument cable to the instrument connector on the NEMA

enclosure and to the bulkhead connector on the EOPM.

Figure 2-3: EOPM Tide System Setup—with the RS-485 Interface

1

2

3

4

1

2

Powersupply

Laptopcomputer

EOPM

DB25 to DB9

adaptor cableserial port

AC cord

NEMA enclosure

boxConverter

Instrumentcable

Serial cable



2-7Setting up and Connecting the EOPM Tide System Components

P/N A177-030

Deploy the EOPM as required.

Connect the serial cable to the serial connector on the NEMA enclosure and

to the DB25 input connector on the converter box.

Connect the DB25 output connector of the converter box to the serial port on

the computer using the DB25 to DB9 serial port adapter cable.

Connect the power supply to the converter box and to the AC power source.

Connect the AC cord to the AC power source. The black wire is AC high, the

white wire is AC neutral, and the green wire is ground.

3

4

5

6

7



3-1

P/N A177-030

SECTION 3: Acquiring, Downloading and

Viewing Data

nce the EOPM Tide System is set up, the EOPM can be configured and

data acquisition started. After data acquisition is complete, the data can

be downloaded and saved using CTDPro. CTDPro also allows viewing

of water pressure and barometric pressure data, processed tide data, and time and

date information. Data can be viewed in graphs and exported to spreadsheet

programs for tabular viewing and further processing.

To configure the EOPM and start data acquisition:

Start CTDPro as described in “Starting CTDPro” on page 2-2.


Select EOPM from the menu bar, and then choose Configure and Deploy.

Follow the instructions provided to configure the EOPM and start data

acquisition.

To download, view and save the data acquired by the EOPM:

Start CTDPro as described in “Starting CTDPro” on page 2-2.


Select EOPM from the menu bar, select Memory, and then choose View

Files.

Follow the instruction provided to download, view and save the data.

1

2

3

1

2

3



4-1

P/N A177-030

SECTION 4: Specifications

elow are the general specifications for the EOPM Tide System. TheNEMA enclosure and the EOPM instrument are listed separately.

Note: These specifications are subject to change without notice.

NEMA Enclosure

Power requirements: 100–125 VAC or 220–240 VAC,

50–60 Hz (factory set with switch under

terminal block; see Figure 1-2 on page

1-4)

Power connection: 3-wire AC cord, stripped end for

terminating

Battery backup time: 16 days typical

AC cord length: 1.5 m (5 ft)

Instrument connector: Subconn MCBH8M; mates with

MCIL8F on instrument cable

Instrument cable length: 20 m (65.6 ft)

Serial connector: Subconn MCBH5F; mates with

MCIL5M on serial cable

Serial cable length: 2 m (6.6 ft)

Dimensions: 28.4 cm (11.2 in.) long by 20.8 cm

(8.2 in.) wide by 14.2 cm (5.6 in.) deep

Weight: 7.45 kg (16.4 lb), including AC cord

Construction: High-impact plastic, watertight with

cover closed

Mounting: (4) 10-32 tapped holes, one each corner

Barometric pressure range: 600–1060 hPa

Data acquisition software: CTDPro running on Microsoft

Windows® 98/NT/2000/XP

B



4-2 SECTION 4 Specifications


EOPM Instrument

Power requirements: 8–30 VDC max; 210 mw @ 8 VDC

Depth rating: 500 m

Bulkhead connector: Subconn MCBH8F; mates with

MCIL8M on instrument cable

Communication interface: RS-232 or RS-485

Sample rate: 1–20 S/sec, selectable

Resolution: 20 bits

Modes of operation: Continuous, Interval or Delayed Interval

Weight in air: 0.57 kg (1.26 lb)

Weight in water: 0.02 kg (0.50 lb) buoyant

Real time clock: Programmable alarm/sleep functions

Real time clock stability: ±20 ppm/year, ±5 ppm/year optional

Baud rate: 300, 1200, 9600, 19200, 38400, 57600,

and 115200; factory set to 9600

Data format: 8 data bits, 1 stop bit, no parity

Internal memory: 128 MB, 256 MB optional

Pressure sensor type: Precision micromachined silicon

diaphragm

Range: Customer specified, 50 psi (0–23 m)

range typical

Accuracy: ±0.03% of full scale

Stability: ±0.004% of full scale/month

Resolution: 0.002% of full scale



5-1

P/N A177-030

SECTION 5: Connector Wiring

he NEMA enclosure includes a Subconn MCBH8M circular bulkheadconnector for the instrument connector and a Subconn MCBH5F

connector for the serial connector. Figure 5-1 shows the pin orientation

for the instrument connector, and Figure 5-2 for the serial connector. Both

connectors are shown viewed from the face. The instrument connector mates with

a Subconn MCIL8F connector, and the serial cable with a MCIL5M.

To wire the NEMA enclosure to the EOPM and to your computer using your own

cables and mating connectors, refer to the instrument connector and serial

connector pinout information in Table 5-1 and Table 5-2. Also refer to the “EOPM

Operation Manual” for the bulkhead connector pinout information. A wiring

diagram of the components inside of the NEMA enclosure is shown in Figure 5-3.

Figure 5-1: NEMA Enclosure Instrument Connector—Face View Male

Figure 5-2: NEMA Enclosure Serial Connector—Face View Female

T

8

7

6

5

4

3

21

5

43

21



5-2 SECTION 5 Connector Wiring


NEMA Enclosure Instrument Connector Pinouts

PININSTRUMENT

CABLE COLORLABEL FUNCTION

1 Black AGND Analog Ground

2 White TXD Transmitted Data (RS-232)

3 Red SUPPLY (+) Instrument Power

4 Green RXD Received Data (RS-232)

5 Orange RS-485A Transmitted Data (RS-485)

6 Blue RS-485B Received Data (RS-485)

7 White/Black NC No Connection

8 Red/Black VOUT Barometric Pressure Out

Table 5-1: NEMA Enclosure Instrument Connector Pinouts

NEMA Enclosure Serial Connector Pinouts

PINSERIAL CABLE

COLORLABEL FUNCTION

1 Black AGND Analog Ground

2 White TXD/RS-485A Transmitted Data (RS-232/RS-485)

3 Red NC No Connection

4 Green RXD/RS-485B Received Data (RS-232/RS-485)

5 Orange NC No Connection

Table 5-2: NEMA Enclosure Serial Connector Pinouts



5-3

P/N A177-030

Figure 5-3: NEMA Enclosure Component Wiring

INSTRUMENT CONNECTOR SERIAL CONNECTOR

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