Seametrics T1 Manual de usuario

PROUDLY

MADE

IN THE

USA

ISO

9001:2008

Precision Environmental Sensors

An ON

CON Brand

T1/T1r

Submerible Temperature

Smart Sensor

T1/T1R INSTRUCTIONS

Seametrics • 253.872.0284 Page 2 seametrics.com

Registered trademarks and trademarks belong to their respective owners.

Introduction .........................................................................................................3

What is the T1/T1R?................................................................................................................................3

Initial Inspection and Handling ..........................................................................................................3

Do’s and Don’ts........................................................................................................................................3

Wiring Diagram ........................................................................................................................................4

Installation ............................................................................................................5

Installation..................................................................................................................................................5

T1 Technical Specications .................................................................................6

Dimensions.................................................................................................................................................6

T1 (non-recording sensor) Operations ..............................................................7

Reading via Modbus®...........................................................................................................................8

Reading via SD-12................................................................................................................................ 10

 ...................................................................................................... 12

T1R Technical Specications............................................................................ 13

T1R Dimensions..................................................................................................................................... 13

T1R (recording sensor) Operations................................................................. 14

Connecting External Power............................................................................................................... 14

Connecting to a Computer ............................................................................................................... 14

Installing Aqua4Plus Software ......................................................................................................... 15

Collecting Data ...................................................................................................................................... 15

T1R (recording sensor) Calibration................................................................. 19

Field Calibration .................................................................................................................................... 19

Reading the T1R ................................................................................................ 21

Direct Read.............................................................................................................................................. 21

Setting Units for Direct Read............................................................................................................ 21

Reading via Modbus® RTU .............................................................................................................. 22

Reading via SDI-12............................................................................................................................... 23

Maintanence ...................................................................................................... 25

Changing Batteries............................................................................................................................... 25

Securing the Sensor............................................................................................................................. 26

Alternative Connection Options...................................................................... 28

Connecting via RS232 Serial Port ................................................................................................... 28

Connecting with a USB/Serial Adapter......................................................................................... 28

Trouble Shooting............................................................................................... 30

Seametrics Limited Warranty........................................................................... 31

TABLE OF CONTENTS

T1/T1R INSTRUCTIONS

Seametrics • 253.872.0284 Page 3 seametrics.com

What is the T1/T1R?

The Seametrics T1 and T1R are highly accurate, submersible temperature sensors. They

are available in both a recording and a non-recording version. Communicating either via

Modbus®RTU or SDI-12, these temperature sensors are versatile and easy to use.

The T1 and T1R temperature sensors are designed to provide trouble-free submersible

operation when properly installed.

The T1 (non-recording version) operates on an external (9 to 16 VDC) power supply and is

ideal for use with many data loggers and SCADA systems.

The T1R (recording version) operates on either two internal AA batteries or an external (6 to

16 VDC) power supply. The unit is programmed using our easy-to-use Aqua4Plus control

software. Once programmed it will measure and collect data on a variety of time intervals.

The T1R can be used as a stand-along unit or network with other Seametrics AquiStar®Smart

Sensors,aswellaswithmanydataloggersandSCADA systemsusing Modbus®RTU orSDI-12.

Initial Inspection and Handling

Upon receipt of your smart sensor, inspect the shipping package for damage. If any

damage is apparent, note the signs of damage on the appropriate shipping form. After

opening the carton, look for concealed damage, such as a cut cable. If concealed damage



Check the etched label on the sensor to be sure that the proper range and type were

provided. Also check the label attached to the cable at the connector end for the proper

cable length.

INTRODUCTION

Do handle the device with care.

Do store the device in a dry, inside

area when not in use.

Do install the device so that the

connector end is kept dry.

Don’t support the device with the connector.

Use a strain relief device to take the



Don’t allow the device to free-fall down a well

as impact damage can occur.

Don’t bang or drop the object on hard objects.

Do’s and Don’ts

T1/T1R INSTRUCTIONS

Seametrics • 253.872.0284 Page 4 seametrics.com

Sensor: There are no user-serviceable parts. If problems develop with sensor stability or

accuracy, contact Seametrics. If the sensor has been exposed to hazardous materials, do



Cable: Cable can be damaged by abrasion, sharp objects, twisting, crimping or crushing

and pulling. Take care during installation and use to avoid cable damage. If a section

of cable is damaged, it is recommended that you send your sensor back to replace the

cable harness assembly.

Connectors (if used): The contact areas (pins & sockets) of the connectors will wear

out with extensive use. If your application requires repeated connections, other types of

connectors can be provided. The connectors used by Seametrics are not submersible,

but are designed to be splash-resistant.

Wiring Diagram

White

Purple

Yellow

Brown

Blue

Shield (may be green)

12 VDC+ (Vaux)

Modbus D-(Not used)

Modbus D+ (Not used)

SDI-12 Signal

12 VDC – (Gnd)

Earth ground

White

Purple

Yellow

Brown

Blue

Shield

12 VDC+ (Vaux)

Modbus D-(Not used)

Modbus D+ (Not used)

SDI-12 Signal

12 VDC – (Gnd)

5-Pin

Connector

White

Purple

Yellow

Brown

Blue

Shield

12 VDC+ (Vaux)

Modbus D-

Modbus D+

SDI-12 (Not used)

Ground

5-Pin

Connector

White

Purple

Yellow

Brown

Blue

Shield

12 VDC+ (Vaux)

Modbus D-

Modbus D+

Digital I/O (Not used)

Ground

5-Pin

Connector

For Modbus®with



— with 5-pin connector

For Modbus®with



— with 5-pin connector

For SDI-12 with



— with 5-pin connector



2.0 or higher — without

connector

INTRODUCTION

T1/T1R INSTRUCTIONS

Seametrics • 253.872.0284 Page 5 seametrics.com

Installation

Lower the sensor to the desired depth. Fasten the cable to the well head using tie wraps

or a weather proof strain-relief system.

If your sensor comes with a connector, be sure the supplied cap is securely placed on the

weather-resistant connector at the top of the cable when not connected to a computer or

logger. Do not install such that the connector might become submerged with changing

weather conditions. The connector can withstand incidental splashing but is not designed

to be submerged.

The sensor can be installed in any position. Strapping the sensor body with tie wraps or





INSTALLATION AND OPERATION

T1/T1R INSTRUCTIONS

Seametrics • 253.872.0284 Page 6 seametrics.com

TECHNICAL SPECIFICATIONS-T1

Dimensions and Specications

GENERAL

Length 6.85” (17.4 cm)

Diameter 0.75” (1.9 cm)

Weight 0.8 lb (0.4 kg)

Body Material 316 stainless steel or titanium

Wire Seal Material Fluoropolymer and PTFE

Submersible Cable Polyurethane, polyethylene,

or ETFE available

Terminating Connector Available

Communication RS485 Modbus®RTU

SDI-12 (ver. 1.3)

Direct Modbus Read Output 

SDI-12 Output ASCII

Internal Math 

Operating Temperature Range1-5° C to 70° C

Storage Temperature Range -40° C to 80° C

POWER

Operating Voltage 12 - 16 VDC

Over Voltage Protection 24 VDC

Power Supply Current Active 3mA avg./10mA peak

Sleep 150 µA

Electomagnetic & Transient IEC-61000 — 4-3, 4-4, 4-5, 4-6

Protection

TEMPERATURE

Element Type Digital IC on board

Accuracy ± 0.2° C

Resolution 0.06° C

Units Celsius, Fahrenheit, Kelvin

Contact factory for extended temperature ranges.

1Requires freeze protection kit if in water below freezing.

T1/T1R INSTRUCTIONS

Seametrics • 253.872.0284 Page 7 seametrics.com

Reading via Modbus RTU Register Denitions

Modbus®Functions

Read the values in the registers using function 03-Read Holding Registers.

Parameter Data



These registers must be read as pairs

40003-4 Temperature (degrees C)

40005-6 Power supply voltage (volts)

Statistical Data Values

40013-14 Averaged temperature

Calibration and Conversion Constants



40223-24 mT Field calibration - Temperature slope

     

40227-28 T_Alpha Factory calibration - Temperature alpha

     

40231-32 T_ZeroSlope Factory calibration - Temperature slope

40237-38 T_mUnits Temperature Units - Conversion slope

     

Factory calibration values are set at the factory.

Writing to Factory Calibration registers will void calibration!!

Field calibration values can be set by user. If set, these values will be applied to readings

before values are returned.

OPERATIONS-T1 NON-RECORDING

T1/T1R INSTRUCTIONS

Seametrics • 253.872.0284 Page 8 seametrics.com

OPERATIONS-T1 NON-RECORDING

Sensor Conguration/Control

40301=n Set averaging: This enables sensor for n seconds (Read/Write).

Each second, the statistical data registers will be update to contain

new averages, max and min. At the completion of n seconds, the

  

will be put to sleep. n = 0..10,800. If n = 0, the sensor is put to

sleep, and the statistical data values are not updated.

40401=a Set sensor address = a (Write Only)

40501=b Set baud rate according to b (Write Only)

b=0:38400 b=1:19200 b=2:9600 b=3:4800 b=4:2400 b=5:1200

40601=w Set auto-enable. Causes sensor to be enabled automatically for

w seconds after a read of any parameter data register. W=0

disables auto-enable. (This is normally set to 10 seconds at the

factory.)

For lowest power usage, set this to zero. For fastest readings while still retaining as much

power savings as possible, set slightly longer than your read frequency. See section on



40701=L Set serial number. L= unsigned longword value

0x0000000 .. 0xFFFFFFF (0 .. 4,294,967,295)

  

LSB = minor revision. E.g., 0011 = revision 0.11

T1/T1R INSTRUCTIONS

Seametrics • 253.872.0284 Page 9 seametrics.com

OPERATIONS-T1 NON-RECORDING

Readings and the Auto-Enable Setting

When a reading is requested, four things happen:

1. The sensor wakes up.

2. The current value in the register is returned.

3. The sensor turns on the analog portion, begins sampling, and begins putting the

new values in the registers.

󰂋

sampling and moving values into the registers all the while, and then goes to

sleep.

󰂋

the reading in the register.

If your read frequency is less than the auto-enable value, the sensor will stay on



reading.

If your read frequency is greater than the auto-enable value, the following reading

sequence is recommended:

1. Request a reading. This begins the wakeup process on the sensor and returns the

value currently in the register, which will be old data. Throw this value away.

2. Wait one second, and then take another reading. This reading will have fresh data.

Record this reading.

Note: This sequence applies only to Modbus®direct read. If reading the sensor via SDI-

12, the warmup timing is automatically taken care of.

Reading via SDI-12

SDI-12 Command Nomenclature

a = Sensor address

{crc} = SDI-12 compatible 3-character CRC

<cr> = ASCII carriage return character

<lf> = ASCII line feed character

Following commands are shown in the format of:

cmd response // comments

T1/T1R INSTRUCTIONS

Seametrics • 253.872.0284 Page 10 seametrics.com

OPERATIONS-T1 NON-RECORDING

SDI-12 Commands

Sensor Identication

<a>I! <a>13 INWUSA PT12

20.7ssssssssss<cr><lf> Note: 0.7



ssssssssss = device serial number

Acknowledge Active, Address Query

a! a<cr><lf>

?! a<cr><lf>

Change Address

aAb! b<cr><lf> Change address from a to b

Request Measurement

aM! a0023<cr><lf> Request temperature/voltage

measurement

aD0! a+0+25.0000+12.0512<cr><lf> Read null, temperature (°C), voltage (V)

aM2! a0021<cr></f>

aD0! a+25.0000<cr><lf> Request temperature measurement

Read temperature (°C)

aM3! a0021<cr><lf> Request power supply voltage

measurement

aD0! a+12.0512<cr><lf> Read power supply voltage (V)

aM4! a0ttt4<cr><lf> Request averaged data. ttt depends

upon programmed average duration

aD0! a+0+0+0+25.0000<cr><lf> Read null, null, null, average

temperature

Request Measurement with CRC

aMC! a0023<cr><lf> Request temperature/voltage

measurement

aD0! a+0+25.0000+12.0512{crc}

<cr><lf> Read null, temperature (°C), voltage (V)

aMC2! a0021<cr><lf>

aD0! a+25.0000{crc}<cr><lf> Request temperature measurement

Read temperature (°C)

aMC3! a0021<cr><lf> Request power supply voltage

measurement

aD0! a+12.0512{crc}<cr><lf> Read power supply voltage(V)

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