Hanna-instruments HI 98143-01 Manual de usuario descargar pdf

Instruction Manual

HI 98143

pH & EC Transmitter

with Isolated Output

WARRANTY

These instruments are warranted for two years against defects in

workmanship and materials when used for its intended purpose and main-

tained according to instructions. Electrodes and probes are warranted

for a period of six months. This warranty is limited to repair or re-

placement free of charge.

Damages due to accident, misuse, tampering or lack of prescribed main-

tenance are not covered.

If service is required, contact the dealer from whom you purchased the

instrument. If under warranty, report the model number, date of purchase,

serial number and the nature of the failure. If the repair is not covered by

the warranty, you will be notified of the charges incurred. If the instrument

is to be returned to Hanna Instruments, first obtain a Returned Goods

Authorization Number from the Customer Service department and then

send it with shipment costs prepaid. When shipping any instrument, make

sure it is properly packaged for complete protection.

All rights are reserved. Reproduction in whole or in part is prohibited

without the written consent of the copyright owner.

Dear Customer,

Thank you for choosing a Hanna product.

This manual will provide you with the necessary information

for the correct operation of the meter. Please read it carefully

before using the meter.

If you need additional technical information, do not hesitate

to e-mail us at [email protected].

These instruments are in compliance with the directives.

Remove the instrument from the packing material and exam-

ine it carefully. If any damage has occurred during shipment,

immediately notify your Dealer or the nearest Hanna Customer

Service Center.

Each instrument is supplied complete with instructions.

Note: Conserve all packing material until the instrument has

been observed to function correctly. Any defective item

must be returned in its original packing.

PRELIMINARY EXAMINATION

HI 98143 is a panel mounted pH and EC transmitter specially

designed to accept signals directly from a pH electrode and

conductivity probe at the same time.

Direct connections of the probes to the transmitter assures a

positive electrical connection with no signal loss.

Four models are available, transmitting at 0-1 V, 0-4 V or 4-

20 mA signal. The output signals are prooprtional to the

input signals, but independent of changes in load or cable

capacitance.

Conductivity readings are compensated for temperature changes.

These transmitters can be connected to any pH or conductivity

controller, recorder, computer or any data monitoring device

that accepts 0 to 1 V, 0 to 4 V or 4 to 20 mA input.

The HI 98143-22 model has been specifically designed to be

used with the HI 8000 fertigation controllers.

GENERAL DESCRIPTION

FUNCTIONAL DESCRIPTION

1. pH offset calibration trimmer

2. pH slope calibration trimmer

3. BNC connector for pH electrode

4. pH electrode (not included)

5. Potential matching pin (not included)

6. Conductivity probe (not included)

7. 12-24 Vdc power adapter (not included)

8. pH output terminals

9. EC output terminals

10. Power supply terminals

11. EC slope calibration trimmer

12. EC offset calibration trimmer

SPECIFICATIONS

Range

pH 0 to 14 pH

EC 0 to 10 mS/cm

Accuracy(@ 25°C/77°F)

pH ±0.5% f.s.

EC ±2% f.s.

Typical EMC Deviation

pH ±2% f.s.

EC ±2% f.s

Isolated Output (pH and EC)

HI 98143-01 0-1 V

HI 98143-04 0-4 V

HI 98143-20 4-20 mA (passive)

HI 98143-22 4-20 mA (active)

Calibration Manual, 2 point, through trimmers

pH offset and slope trimmers

EC 0 and 5 mS/cm trimmers

Temperature Compensation (EC only)

Automatic from 0 to 60°C with ß=2%/ºC

pH Electrode HI 1001 pH electrode (suggested) and

HI 1283 matching pin (not included)

EC Probe HI 3001(not included) with cell constant 2.1

Casing IP54

Power Supply 12-24 Vdc

Environment 0 to 50°C (32 to 122°F); RH max 95%

Dimensions 160 x 105 x 31mm (6.3 x 4.1 x 1.2”)

Weight 280 g (9.9 oz.)

HI 98143-01

HI 98143-04

HI 98143-20

HI 98143-22

0 to 14 pH = 0 to 1 Vdc

0 to 10 mS = 0 to 1 Vdc

0 to 14 pH = 0 to 4 Vdc

0 to 10 mS = 0 to 4 Vdc

0 to 14 pH = 4 to 20 mA

0 to 10 mS = 4 to 20 mA

0 to 14 pH = 4 to 20 mA

0 to 10 mS = 4 to 20 mA

www.hannainst.com

Hanna Instruments reserves the right to modify the design, construction

and appearance of its products without advance notice.

ACCESSORIES

HI 1001 “flow-thru”, double junction pH electrode with

BNC connector and 3 m (10’)

HI 1283 Stainless steel grounding probe with 2 m

(6.6’) cable

HI 3001 “flow-thru”, 4 platinum ring EC probe with

built-in temperature sensor & 3 m (10’) cable

HI 7004L pH 4.01 buffer solution, 500 mL bottle

HI 7007L pH 7.01 buffer solution, 500 mL bottle

HI 7039L 5.00 mS/cm calibration solution, 500 mL bottle

HI 70300L Electrode storage solution, 500 mL bottle

HI 7061L Electrode cleaning solution, 500 mL bottle

HI 710005 115 Vac to 12 Vdc power adapter

HI 710006 230 Vac to 12 Vdc power adapter

Recommendations for Users

Before using this product, make sure that it is entirely suitable for the

environment in which it is used. Operation of this instrument in residential

areas could cause unacceptable interferences to radio and TV equipment.

The glass bulb at the end of the electrode is sensitive to electrostatic

discharges. Avoid touching this glass bulb all the time. The metal band at

the end of the EC probe is sensitive to electrostatic discharges. Avoid

touching this metal band all the time. During operation, ESD wrist straps

should be worn to avoid possible damage to the electrode by electrostatic

discharges. Any variation introduced by the user to the supplied equipment

may degrade the instrument’s EMC performance. To avoid electrical shock,

do not use this instrument when voltages at the measurement surface

exceed 24 Vac or 60 Vdc. To avoid damages or burns, do not perform any

measurement in microwave ovens.

IST98143 07/05

1 2

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Pagina 1

Instruction ManualHI 98143pH & EC Transmitterwith Isolated OutputWARRANTYThese instruments are warranted for two years against defects inworkmansh

Pagina 2 - PROBE MAINTENANCE

CALIBRATIONFor better accuracy, frequent calibration of the instrument is recommended.Calibration should also be performed whenever the pH electrode i

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