Hanna Instruments HI 99141 Manuel utilisateur

HI99141

Waterproof

pH & Temperature Meter

for Boilers & Cooling Towers

INSTRUCTION MANUAL

Thank you for choosing a Hanna Instruments product.

Please read this instruction manual carefully before

using this meter.

This manual will provide you with the necessary

information for correct use of this meter, as well as a

precise idea of its versatility.

If you need additional technical information, do not

hesitate to e‑mail us at [email protected] or view

our worldwide contact list at www.hannainst.com.

Dear

Customer,

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

without the written consent of the copyright owner, Hanna

Instruments Inc., Woonsocket, Rhode Island, 02895, USA.

TABLE OF CONTENTS

Preliminary examination ...........................................

General description and Intended use ........................

Main features...........................................................

Specifications...........................................................

Display description ...................................................

Operational guide.....................................................

Meter setup..............................................................

Battery replacement..................................................

Accessories...............................................................

Electrode maintenance..............................................

Certification..............................................................

Recommendations for users.......................................

Warranty .................................................................

PRELIMINARY EXAMINATION

Remove the instrument and accessories from the packaging

and examine it carefully to make sure that no damage

has occurred during shipping. Notify your nearest Hanna

Instruments Customer Service Center if damage is observed.

Each HI99141 is delivered in a rugged carrying case and

is supplied with:

• HI729113 pH/temperature probe with titanium body,

DIN connector and 1m (3.3’) cable

• HI70004 pH 4.01 buffer (1 sachet)

• HI70007 pH 7.01 buffer (1 sachet)

• HI700601 pH and ORP electrode cleaning solution

(2 sachets)

• 100 mL beaker (1 pc.)

• 1.5V AAA alkaline batteries

• Instrument quality certificate

• Electrode quality certificate

• Instruction manual

Note: Save all packing material until you are sure that

the instrument works correctly. Any damaged or defective

item must be returned in its original packing material

with the supplied accessories.

GENERAL DESCRIPTION AND INTENDED USE

The HI99141 portable pH meter together with HI729113

double junction pH electrode is designed to measure boiler

and cooling tower water.

The HI99141 is a lightweight, portable, pH and temperature

meter. It features a two button operation system and is easy

to use. It has a waterproof and compact casing, large dual‑

line display, and automatic pH calibration at one or two

points.

The HI729113 has a large annular polytetrafluoroethylene

(PTFE) junction and a flat tip that prevents solids from

clogging the sensor. It has a built‑in temperature sensor for

temperature compensated pH readings and an integrated

preamplifier to provide measurements impervious to noise

and electrical interferences.

MAIN FEATURES

• Simultaneous pH and temperature measurements on a

large dual‑line LCD display

• Automatic pH calibration at one or two points within

two memorized buffer sets (standard or NIST)

• Selectable temperature unit (°C or °F)

• Electrode condition indicator

• mV of pH measurement for electrode check

• HI729113 dedicated pH probe with integrated

temperature sensor

• Probe quick connect system

• Battery life indication and low battery detection

• Keystroke confirmation tone

• Auto‑off function

• Waterproof casing IP67

SPECIFICATIONS

Range*

‑2.00 to 16.00 pH / ‑2.0 to 16.0 pH

±825 mV (pH‑mV)

‑5.0 to 105.0 °C/23.0 to 221.0 °F

Resolution

0.01 pH / 0.1 pH

1 mV

0.1 °C/0.1 °F

Accuracy

@ 25 °C / 77 °F

±0.02 pH / ±0.1 pH

±1 mV (pH‑mV)

±0.5 °C up to 60 °C; ±1.0 °C outside

±1.0 °F up to 140 °F; ±2.0 °F outside

Temperature

compensation

Automatic

‑5.0 to 105.0 °C/23.0 to 221.0 °F

pH calibration

Automatic, 1 or 2 point selectable buffer

set Standard (4.01, 7.01, 10.01) or

NIST (4.01, 6.86, 9.18)

Probe (included)

HI729113 preamplified pH/temperature

probe with titanium body, DIN connector

and 1 m (3.3’) cable

Battery type/life 1.5V AAA (3 pcs.)

approx. 1400 hours of continuous use

Auto‑off user selectable:

after 8 min, 60 min or disabled

Environment 0 to 50 °C (32 to 122 °F)

RH max. 100%

Meter dimensions 154 x 63 x 30 mm (6.1 x 2.5 x 1.2”)

Weight

(with batteries) 196 g (6.91 oz.)

Case ingress

protection rating IP67

* the HI729113 is limited to be used from 0 to 13 pH and from 0 to

80 °C temperature (32 to 176 °F).

DISPLAY DESCRIPTION

1 Automatic Temperature Compensation indicator

2 Stability indicator

3 Battery percentage

4 Electrode condition indicator

5 Low battery indicator

6 Measurement unit

7 Primary LCD

8 Temperature unit

9 Secondary LCD

10 Meter modes indicator

11 pH calibration buffer(s) used

OPERATIONAL GUIDE

Each meter is supplied with batteries. Before using the meter

for the first time, open the battery compartment and insert

batteries, observing the polarity (see “Battery Replacement“).

CONNECTING THE ELECTRODE

With the meter turned off, connect the HI729113 probe to

the DIN socket on the bottom of the meter by aligning the

pins and pushing in the plug firmly. Remove the protective

cap from the probe before taking any measurements.

TURNING THE METER ON

To turn the meter ON, press the button on

the front of the meter. If it does not turn on, make

sure that the batteries are properly installed in their place.

The meter is provided with an active acoustic signal when

a key is pressed. At start‑up the meter displays all LCD

segments for a few seconds, followed by the percentage

indication of the remaining battery life, displaying “WAIT“

until electrode check is in process then the meter enters the

normal measurement mode.

Battery life

Measurement

mode

LCD check

→ →

→

Electrode

check

Note: The meter detects the presence and the type of

the probe at its input.

- If the probe is not connected the message “NO”

”PROBE“ appears alternatively on the secondary LCD

with “---“ blinking on the first LCD line.

- If the probe is not compatible “WRONG” ”PROBE“

message appears alternatively on the secondary LCD

with “---“ blinking on the first LCD line.

- If the readings are out of range, the nearest range

limits are displayed blinking (e.g. -2.00 pH -5.0 °C).

OPERATIONAL GUIDE

pH MEASUREMENT & CALIBRATION

Make sure the meter has been calibrated before use.

If the probe is dry, soak it in HI70300 storage solution for

30 minutes to reactivate it. If soiled, clean the electrode

by soaking in cleaning solution for 20 minutes, then rinse

the tip and soak in storage solution at least 30 minutes

before use.

Rinse the electrode off well and shake

off excess droplets. Recalibrate before

using.

Submerge the probe in the sample to

be tested while stirring it gently. Wait

until the tag on the LCD disappears.

SELECTING MEASUREMENT RANGE

While in measurement mode, press the SET button to select

pH or pH‑mV measurement on the first LCD line.

FREEZING MEASUREMENT VALUES

While in measurement mode, press and hold the SET

button until “HOLD“ appears on the secondary LCD. The

“HOLD“ remains for 1 second and reading of pH, mV and

temperature will be frozen on the LCD with “H” blinking.

→

Press any button to resume active measurements.

ENTERING CALIBRATION MODE

Press and hold the button until ”POWER” and tag

is replaced by “STD“ and tag. Release the button.

ENTERING SETUP MODE

Press and hold button until “STD“ and tag is

replaced by “SETUP“ and tag. Release the button.

TURNING THE METER OFF

Whileinmeasurement mode,pressthe button.”POWER”

and tag will appear. Release the button.

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