Seametrics TempHion Manuel utilisateur

PROUDLY

MADE

IN THE

USA

ISO

9001

TempHionTempHion

pH/ORP (Redox) / ISE Smart SensorpH/ORP (Redox) / ISE Smart Sensor

and Data Logger Instructionsand Data Logger Instructions

TEMPHION INSTRUCTIONS

Seametrics • 253.872.0284 Page 2 seametrics.com

TEMPHION INSTRUCTIONS

Seametrics • 253.872.0284 Page 3 seametrics.com

General Information

General Information ...................................................................................................................................................Page 4

Dimensions ....................................................................................................................................................................Page 4

Specications ................................................................................................................................................................Page 5

Initial Inspection and Handling..............................................................................................................................Page 6

Do’s and Don’ts............................................................................................................................................................Page 6

TempHion Reference Electrode..............................................................................................................................Page 7

General Precautions....................................................................................................................................................Page 7

Installation

Connecting External Power......................................................................................................................................Page 8

Connecting a TempHion to a Computer ............................................................................................................Page 8

Cable Wiring..................................................................................................................................................................Page 9

Installing Aqua4Plus or Aqua4Plus Lite Software ...........................................................................................Page 9

Using Without Aqua4Plus or Aqua4Plus Lite Software ................................................................................Page 9

Grounding Issues.........................................................................................................................................................Page 9

Installing the Sensor...................................................................................................................................................Page 10

Settings and Calibration

General Calibration Information............................................................................................................................Page 11

Important Calibration Notes ...................................................................................................................................Page 11

pH Calibration...............................................................................................................................................................Page 12

Redox/ORP Calibration..............................................................................................................................................Page 13

ISE-Bromide Calibration............................................................................................................................................Page 14

Operation

Real-time Data..............................................................................................................................................................Page 15

Data Logging.................................................................................................................................................................Page 15

Program Settings.........................................................................................................................................................Page 17

Direct Read Modbus/SDI-12

Power Consideration ..................................................................................................................................................Page 18

Reading via Modbus RTU .........................................................................................................................................Page 18

Reading via SDI-12......................................................................................................................................................Page 19

Maintenance and Reference

Sensor/Cable/End Connections .............................................................................................................................Page 21

Care and Filling of Reference Solution................................................................................................................Page 21

pH Field Calibration Temperature Chart.............................................................................................................Page 22

How to Store and Recondition...............................................................................................................................Page 22

Changing Batteries......................................................................................................................................................Page 23

Troubleshooting

Problems/Probable Causes/Things to Try..........................................................................................................Page 26

TABLE OF CONTENTS

IF USING ALKALINE BATTERIES—PREVENT BATTERY LEAKAGE!

TempHion sensors are typically shipped with lithium batteries. If, however,

you are using alkaline batteries, be aware that under some circumstances

alkaline batteries can leak, causing damage to the sensor. To prevent leakage,

the following is recommended. (Does not apply to lithium batteries.)

• Change the batteries at least every 18 months.

• If the sensor will not be deployed for 3 months or more, remove the

batteries.

TEMPHION INSTRUCTIONS

Seametrics • 253.872.0284 Page 4 seametrics.com

GENERAL INFORMATION

The Seametrics TempHion™ Smart Sensor is a

microprocessor-based submersible sensor with built-in

data logging, storing thousands of records in non-volatile

memory. The pH/ORP version measures pH, ORP (Redox),

and temperature. The ISE version measures bromide and

temperature.

The internal processor in the TempHion allows for easy

calibration, using the calibration utilities in Aqua4Plus.

Once calibrated, this calibration data is stored in non-

volatile memory within the Smart Sensor. When data is

collected, this calibration information is applied to the

data, resulting in highly accurate readings at a wide range

of temperatures.

The TempHion is powered internally with two replaceable

AA batteries. Alternately it can be powered with an external

auxiliary power supply for data intensive applications.

The unit is programmed using Seametrics’ easy-to-use

Aqua4Plus control software. Once programmed the unit

will measure and collect data on a variety of time intervals.

Several TempHions, or a combination of TempHions

and other Seametrics Smart Sensors, can be networked

together and controlled from one location directly from a

single computer.

While most will use the TempHion with our free, easy-to-

use Aqua4Plus software, it is by no means limited to that

software. You can use your own Modbus®RTU or SDI-12

software or logging equipment to read measurements,

thus tying into your existing systems and data bases.

Dimensions

17.96” (45.6 cm)

17.96” (45.6 cm) Diameter

0.75” (1.9 cm)

0.28” (0.7 cm)

Cableless

0.25” (0.6 cm)

Shorter

pH/ORP Version

ISE Version

pH/ORP element

ISE element

Reference Reservoir

Non-batttery versions are 3.8” (9.65 cm) shorter.

TEMPHION INSTRUCTIONS

Seametrics • 253.872.0284 Page 5 seametrics.com

Specications*

GENERAL INFORMATION

Housing & Cable Weight 0.8 lb. (0.4 kg)

Body Material Acetal & 316 stainless or titanium

Wire Seal

Material

Fluoropolymer and PTFE

Cable Submersible: polyurethane, polyethylene, or ETFE (4 lb./100 ft., 1.8 kg/30 m)

Field Connector Standard

Temperature Operating Range 0˚ to 55˚C (32˚ to 131˚F)

Storage Range Without batteries: –20˚ to 80˚C (–4˚ to 176˚F)

Power Internal Battery Two replaceable lithium ‘AA’ batteries - Expected battery life: 18 months at 15 min. polling interval (may

vary do to environmental factors)

Auxiliary 12 Vdc - Nominal, 9-15 Vdc - range

Communication Modbus® RS485 Modbus® RTU, output=32bit IEEE oating point

SDI-12 SDI-12 (ver. 1.3) - ASCII

Logging Memory 4MB - 200,000 records

Logging Types Variable, user-dened, proled

Logging Rates 2x/sec maximum, no minimum

Baud Rates 9600, 19200, 38400

Software Complimentary Aqua4Plus

Networking 32 available addresses per junction (Address range: 1 to 255)

File Formats .a4d and .csv (also .xls in Windows 8 and earlier)

Output Channels Temperature pH ORP Bromide

Element 30K ohm thermistor,

Epoxy bead/external

housing

Glass combination

electrode

Platinum ring Ag/AgCl solid-state

electrode (Ion electrode

method)

Accuracy ±0.2˚C ±0.2 pH units, 0.1% mV

value (typical)

0.1 mVH, 0.1% mV value

(typical)

±5.0% of measured value

(typical)

Resolution 0.1˚C 0.01 pH units 0.01 mVH units 0.1 ppm

Units Celsius, Fahrenheit,

Kelvin

pH, mV Eh, mV ppm, mV

Range 0˚ to 55˚C (32˚ to 131˚F) 0-14 pH units / -538 to

260 mV

± 1200 mV 0–10,000 ppm

Compensated --- 0˚ to 40˚C (32˚ to 104˚F) 0˚ to 40˚C (32˚ to 104˚F) Isopotential point

characterization

Calibration --- One or two point

calibration w/ pH buers

(4 & 7 or 7 & 10)

EH 1 pt. calibration One or two point

calibration w/ ionic

strength adjustment

Reference

Solution

Potassium Nitrate -

(KNO3)

Potassium Nitrate -

(KNO3)

Potassium Nitrate -

(KNO3)

Reference Ag/AgCl solid state electrode, capillary liquid junction, TempHion™ reference solution

Maximum Depth pH/ORP: 700 ft (210 m) / 300 psi, ISE: 230 ft (70 m)/100 psi

Environmental IP68, NEMA 6P

*Specications subject to change. Please consult out web site for the most current data (seametrics.com). Modbus is a registered trademark of Schneider Electric.

TEMPHION INSTRUCTIONS

Seametrics • 253.872.0284 Page 6 seametrics.com

GENERAL INFORMATION

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 is found, immediately le a claim with the carrier.

Check the label attached to the cable at the connector end for the proper cable length.

Do’s and Don’ts

Don’t drop into well

Lower gently to prevent

damage

Don’t scrape cable

over edge of well

May nick or fray the

cable

Don’t bend cable sharply

May weaken internal wires

Don’t support sensor

with the connector

Use a strain relief device

Do handle sensor with

care

Do store sensor in

a dry, inside area

when not in use. (See

also “How to Store” in

Maintenance section)

 

Do install sensor so the

connector end is kept

dry

 

TEMPHION INSTRUCTIONS

Seametrics • 253.872.0284 Page 7 seametrics.com

GENERAL INFORMATION

TempHion™ Reference Electrode

TempHion’s patented reference electrode is the key to

TempHion’s superior downhole/high pressure performance.

TempHion uses a long capillary pathway, initially lled

with reference electrode lling solution, to separate the

reference electrode chamber from the solution being

analyzed. In addition, TempHion’s reference electrode is

lled without any air (which is compressible). With this

construction, the principle mechanism that will eventually

allow test solution to enter the reference chamber and

contaminate the reference electrode lling solution is

diusion – an exceedingly slow mechanism. Further, while

the capillary pathway is narrow by garden hose standards,

its open cross-section is huge compared to the microscopic

openings in a conventional porous ceramic uid/uid

junction. It is therefore much less susceptible to fouling.

TempHion’s proven stability under actual eld conditions is

measured in weeks or months, rather than hours or days!

The gure below illustrates the construction of the

TempHion reference electrode. Please note that the

capillary pathway between the reference and test solutions

is established using a modied screw thread. This means

that the capillary can be easily opened up for cleaning,

relling, or other maintenance.

Reference Electrode Assembly: The modied thread provides

a continuous liquid path between the solution in which the

instrument is immersed and the reference element.

TempHions with standard pH elements, ISE elements,

and ORP elements come with the TempHion Reference

Electrode, as described above.

Reference

Electrode

Assembly

Liquid Junction Port

Outer Reference

Housing

Capillary Flow path

(Modied Thread)

Reference Electrode

Filling Solution

Reservoir

Reference Element

General Precautions

The rest of this manual includes step-by-step instructions

for setting up the TempHion calibrating it, and using it in

the eld. When reading and following the instructions in

these sections, keep these very important considerations

in mind:

• Do not handle the surfaces of the sensing

electrodes. Oils from ngers can “blind” the

reactive surface. Rough handling can scratch the

reactive surface.

• Use calibration standards that are accurately

prepared. Discard standards after use. Do not

return the used standards to the bottles of “fresh”

solution.

• When TempHion’s reference electrode contains

lling solution, the O-ring at the top of the

reference assembly must be in the upper position.

(See further details under Installation later in this

manual.)

• For any step-change in temperature (e.g., where

calibration standards are at a dierent temperature

than water to be tested) allow the instrument to

come to complete thermal equilibrium before

making measurements. Up to 30 minutes may be

required.

TEMPHION INSTRUCTIONS

Seametrics • 253.872.0284 Page 8 seametrics.com

INSTALLATION

Connecting External Power

The TempHion comes with two replaceable1.5V AA internal

batteries.

If auxiliary power is desired, you can use a 9-15 VDC supply

that can provide 15 mA. Connect to Vaux++ (pin 1 - white)

and Ground (pin 5 - blue) or contact Seametrics for auxiliary

power supplies.

Connecting the TempHion to a Computer

Cabled sensors are terminated with a weather-resistant

connector. Cableless sensors are terminated with a weather-

resistant connector that is inside a screw-cap. Connect the

weather-resistant connector to your computer’s USB port

as shown below.

Connecting sensor to your computer using

Seametrics’ USB to RS485 adapter.

Aqua4Plus communicates with the sensor using the USB

to RS485 adapter cable. This cable requires drivers to be

installed on your computer. If you are connected to the

Internet when you rst plug in the cable, it will normally

obtain and install the correct drivers automatically. If this

does not happen, or if you do not have Internet connection,

you can use Aqua4Plus to install the drivers.

Cap

Sensor

Cableless

Configuration

PC or Laptop

USB Port

USB to RS485

Adapter

Sensor

Connecting to Sensors

Aqua4Plus 2.0 is designed to automatically detect

your communication cable and scan for sensors. It is

recommended you connect your USB/RS485 cable to

your PC and have the sensor connected before opening

Aqua4Plus 2.0.

If your cable and sensor were not connected before

opening Aqua4Plus 2.0 simply connect and click Rescan.

While scanning is active you’ll see a green dot ash in the

upper right corner of the program. Scanning is complete

when this dot stops ashing.

If your sensor still won’t connect you can expand the

Modbus address range under program settings here:

Simply drag the Address Range slider higher up to

increase the maximum Modbus address scanned. If

you’ve scanned all the way up through address 255 and

still have no connection click Troubleshooting for further

troubleshooting or contact Seametrics Tech Support for

assistance.

Click at any time to refresh sensor information.

TEMPHION INSTRUCTIONS

Seametrics • 253.872.0284 Page 9 seametrics.com

INSTALLATION

Cable Wiring

If you buy your cabled sensor with a connector installed

(the normal conguration), no further wiring is needed.

For reference purposes, the rst two diagrams below show

the pinout from the connector for various scenarios. The

nal diagram shows the pinout if you bought your sensor

without a connector for use with SDI-12.

For Modbus®—with 5-pin connector

For SDI-12—with 5-pin connector

For SDI-12—without connector

White

Purple

Yellow

Brown

Blue

Shield

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)

12 VDC- (GND)

5-Pin

Connector

Installing Aqua4Plus Software

The TempHion comes with the Aqua4Plus host software

that is installed on your PC or laptop. Use this software to

program the datalogger, to retrieve data from the logger,

to view collected data, and to export data to external les

for use with spreadsheets or databases.

Refer to the software manuals for details on installing and

using Aqua4Plus.

Using TempHion Without Aqua4Plus

Most users will use the TempHion with Seametrics’

Aqua4Plus software. However, the TempHion is quite

versatile, communicating via either Modbus®or SDI-12

interfaces, allowing you to do the following:

• Read a TempHion via Modbus®using your own

software.

• Read a TempHion via SDI-12 protocol.

• Display readings from a TempHion on a panel

meter.

If you want to use one of these methods, see the chapter

Direct Read Modbus®/SDI-12.

Grounding Issues

It is commonly known that when using electronic

equipment, both personnel and equipment need to be

protected from high power spikes that may be caused by

lightning, power line surges, or faulty equipment. Without

a proper grounding system, a power spike will nd the path

of least resistance to earth ground—whether that path is

through sensitive electronic equipment or the person

operating the equipment. In order to ensure safety and

prevent equipment damage, a grounding system must be

used to provide a low resistance path to ground.

When using several pieces of interconnected equipment,

each of which may have its own ground, problems with

noise, signal interference, and erroneous readings may be

noted. This is caused by a condition known as a Ground

Loop. Because of natural resistance in the earth between

the grounding points, current can ow between the points,

creating an unexpected voltage dierence and resulting

erroneous readings.

The single most important step in minimizing a ground loop

is to tie all equipment (sensors, dataloggers, external power

sources, and any other associated equipment) to a single

common grounding point. Seametrics recommends

connecting the shield to ground at the connector end.

TEMPHION INSTRUCTIONS

Seametrics • 253.872.0284 Page 10 seametrics.com

INSTALLATION

Installing the Sensor

The black reference reservoir at the lower end of the

TempHion Smart Sensor is shipped lled with Seametrics

reference solution. (If your reference reservoir is not lled,

see the Maintenance section in this manual.) The black

reference assembly has two grooves. The upper groove

contains a small hole that forms the liquid junction port.

During shipping and storage, an o-ring is located in the

upper groove, preventing reference solution leakage and

contamination. Be sure to move the o-ring to the lower

groove before deploying, thus exposing the liquid junction

port. If the o-ring continues to cover the opening, readings

will not be representative or accurate.

Be sure to move the o-ring to the lower groove before

deploying, thus exposing the liquid junction port.

Lower the sensor to the desired depth. Fasten the cable

to the well head using tie wraps or a weather proof strain-

relief system. (Note that for shallow installations the liquid

in which the sensor is submerged must, at all times, reach

high enough to cover the sensing element cutout.)

Be sure the supplied cap is securely placed on the weather-

resistant connector at the top of the cable. 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.

Note about Calibration

The TempHion must be calibrated before deploying.

The TempHion has one temperature channel and four

millivolt channels. The millivolt channels can be congured

to measure pH, ORP (Redox), or various selected ions.

Before leaving the factory, your sensor has been congured

specically for you. All unneeded channels have been

disabled, and the active channels have been pre-congured.

Disabled channels will not display in Aqua4Plus.

(Note: Some older TempHions may have more channels.

If yours has more channels, refer to the documentation

that came with the unit or contact Seametrics for more

information.)

All active channels can be calibrated in the eld.

Temperature channels rarely need calibrating, however the

pH, ORP (Redox), and ISE channels should be calibrated

before rst use and periodically thereafter.

See the next section, “Settings and Calibration” for detailed

calibration instructions.

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