Hanna Instruments HI98192 Instruction Manual

HI98192

USP Compliant

EC, TDS, NaCl, Resistivity,

Temperature Meter

INSTRUCTION MANUAL

Dear Customer,

Thank you for choosing a Hanna Instruments product.
Please read this instruction manual carefully before using the instrument.
This manual will provide you with the necessary information for correct

use of the instrument, as well as a precise idea of its versatility.
If you need additional technical information, do not hesitate to e‑mail

us at [e-mail] or view our worldwide contact list at

www.hannainst.com.

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.

PRELIMINARY EXAMINATION ............................................................................................

GENERAL DESCRIPTION ....................................................................................................

FUNCTIONAL DESCRIPTION ...............................................................................................

SPECIFICATIONS ..............................................................................................................

OPERATIONAL GUIDE .......................................................................................................

AUTORANGING ................................................................................................................

TEMPERATURE COMPENSATION ........................................................................................

CONDUCTIVITY VERSUS TEMPERATURE CHART....................................................................

USP MEASUREMENT ........................................................................................................

USP MODE PROCEDURES .................................................................................................

USER CALIBRATION ..........................................................................................................

EC CALIBRATION ..............................................................................................................

GOOD LABORATORY PRACTICE (GLP) ..................................................................................

SETUP ............................................................................................................................

LOG ON DEMAND .............................................................................................................

AUTOLOG ........................................................................................................................

AutoEnd ..........................................................................................................................

TEMPERATURE CALIBRATION (for technical personnel only) .................................................

PC INTERFACE ................................................................................................................

BATTERIES REPLACEMENT ................................................................................................

TROUBLESHOOTING GUIDE ...............................................................................................

PROBE MAINTENANCE ......................................................................................................

ACCESSORIES ...................................................................................................................

TABLE OF CONTENTS

4

5

6

7

9

14

15

16

17

21

25

26

33

35

47

50

52

53

56

63

64

65

66

3

Remove the instrument from the packing material and examine it carefully to make sure that no
damage has occurred during shipping. If there is any damage, notify your dealer or the nearest
Hanna Customer Service Center.

Each instrument is supplied with:

• HI763133 four‑ring conductivity/TDS probe with temperature sensor (1.5 m cable)

• HI7031M 1413 µS/cm calibration solution (230 ml)

• HI7035M 111.8 mS/cm calibration solution (230 ml)

• HI920015 Micro USB cable

• HI92000 PC Software

• 100 mL Plastic Beaker (2 pcs.)

PRELIMINARY EXAMINATION

• 1.5 V AA Batteries (4 pcs.)

• Instruction Manual and Quick Reference Guide

• Certificate

Note: Save all packing material until you are sure that the instrument functions correctly.
All defective items must be returned in the original packing with the supplied accessories.

4

The HI98192 instrument is state‑of‑the‑art, heavy‑duty conductivity meter, designed to provide
laboratory results and accuracy under harsh industrial conditions.

The USP standard compliance makes the instrument useful for pure water determination.
It is provided with a series of new diagnostic features which add an entirely new dimension to the

measurement of conductivity, by allowing the user to dramatically improve the reliability of the
measurement:

• 7 memorized standards (0.00 µS/cm, 84.0 µS/cm, 1.413 mS/cm, 5.00 mS/cm,

12.88 mS/cm, 80.0 mS/cm and 111.8 mS/cm) for calibration.

• EC calibration up to five calibration points.

• Messages on the graphic LCD for an easy and accurate calibration.

• Diagnostic features to alert the user when the electrode needs cleaning.

• User‑selectable “Outside Calibration Range” warning.

• User‑selectable “calibration time out” to remind when a new calibration is necessary.
Moreover, they offer an extended temperature range from ‑20.0 to 120.0 °C (‑4.0 to 248.0 °F),

using temperature sensor inside EC electrode.
This instrument can also measure in Resistivity, TDS and Salinity ranges. Three salinity modes are

available: % NaCl, Practical salinity and Natural seawater scale.

Other features include:

• Temperature source selection

• Temperature automatic compensation, linear or non linear user selectable

• Temperature reference selection 15 °C, 20 °C or 25 °C.

• Temperature coefficient set

• Log on demand up to 400 samples

• Auto Log feature up to 1000 records

• Auto Hold feature, to freeze first stable reading on the LCD

• Lock and user setup Fixed range selection

• GLP feature, to view last calibration data for EC, NaCl

• Probe change recognition

• PC interface

• Probe replatinization

GENERAL DESCRIPTION

5

FRONT VIEW

FUNCTIONAL DESCRIPTION

1) Liquid Crystal Display (LCD).

2) F1, F2, F3 functional keys.

3) / keys to manually increase/decrease the parameters or to scroll between the parameter
list.

4) ON/OFF ( ) key, to turn the instrument ON and OFF.

5) LIGHT ( ) key to toggle display backlighting.

6) GLP key, to display Good Laboratory Practice information.

7) CAL key, to enter/exit calibration mode.

8) SETUP key, to enter/exit SETUP mode.

9) RCL key, to enter/exit view logged data mode.

10) MODE key to toggle between EC, USP and Salinity ranges.

11) RANGE key, to switch between EC, Resistivity, TDS, NaCl.

12) HELP key to enter/exit contextual help.

13) ESC to leave current mode, exit calibration, setup, help. etc.

TOP VIEW

14) Electrode DIN connector.

15) USB connector.

6

EC

Resistivity

SPECIFICATION

Range 0 to 400 mS/cm

(shows values up to 1000 mS/cm)
Actual conductivity 1000 mS/cm

0.001 to 9.999 µS/cm*

10.00 to 99.99 µS/cm

100.0 to 999.9 µS/cm

1.000 to 9.999 mS/cm

10.00 to 99.99 mS/cm

100.0 to 1000.0 mS/cm (autoranging)

Resolution 0.001 µS/cm* / 0.01 µS/cm / 0.1 µS/cm

0.001 mS/cm / 0.01 mS/cm / 0.1 mS/cm
Accuracy ±1% of reading (±0.01 µS/cm or 1 digit whichever greater)
Range 1.0 to 99.9 Ω•cm

100 to 999 Ω•cm

1.00 to 9.99 KΩ•cm

10.0 to 99.9 KΩ•cm

100 to 999 KΩ•cm

1.00 to 9.99 MΩ•cm

10.0 to 100.0 MΩ•cm* (autoranging)
Resolution 0.1 Ω•cm / 1 Ω•cm / 0.01 KΩ•cm / 0.1 KΩ•cm /

1 KΩ•cm

0.01 MΩ•cm / 0.1 MΩ•cm*

Accuracy ±1% of reading (±10 Ω•cm or 1 digit whichever greater)

Range 0.00 to 99.99 ppm

100.0 to 999.9 ppm

1.000 to 9.999 g/L

10.00 to 99.99 g/L

TDS

Resolution 0.01 ppm / 0.1 ppm / 0.001 g/L / 0.01 g/L / 0.1 g/L

Accuracy ±1% of reading (±0.05 ppm or 1 digit whichever greater)

* The 0.001 µS/cm EC range and 0.1 MΩ•cm Resistivity range are not available with the

1.5 m cable probe.

100.0 to 400.0 g/L (autoranging)

7

Salinity

Temperature Range ‑20.0 to 120.0 °C (‑4.0 to 248.0 °F)

SPECIFICATION

Range % NaCl: 0.0 to 400.0 %

Seawater scale: 0.00 to 80.00 (ppt)
Practical salinity: 0.01 to 42.00 (PSU)

Resolution 0.1 % / 0.01 ppt / 0.01 PSU
Accuracy ±1% of reading

Resolution 0.1 °C (0.1 °F)
Accuracy ±0.2 °C (±0.4 °F) (excluding probe error)

EC Calibration

Cell Constant Setup 0.010 to 10.000
NaCl Calibration

Implemented Standards USP compliant
EC Probe HI763133 (8 pin DIN, 1.5 m cable)
Temperature Source Automatic from sensor inside the probe; Manual entry
Temperature Compensation NoTC, Linear, Non Linear ISO/DIS 7888 std
Reference Temperature 15, 20, 25 °C
Temperature Coeficient 0.00 to 10.00 %/°C
TDS Factor 0.40 to 1.00
Log on Demand 400 samples

Lot Logging

Memorized Profiles Up to 10
Measurement Modes Autorange, AutoEnd, LOCK and Fixed range
Battery Type / Life 1.5V AA batteries (4 pcs.) / 100h no backlight 25h with backlight
Auto Power Off User selectable: 5, 10, 30, 60 minutes or disabled
PC Connectivity Opto‑isolated USB
Dimensions 185 x 93 x 35.2 mm (7.3 x 3.6 x 1.4”)
Weight 400 g (14.2 oz)

Environment 0 to 50 °C (32 to 122 °F) max. RH 100% IP67

Automatic up to five points with seven memorized standards
(0.00 µS/cm, 84.0 µS/cm, 1.413 mS/cm, 5.00 mS/cm,

12.88 mS/cm, 80.0 mS/cm, 111.8 mS/cm)

Max. one point only in % range (with HI7037 standard);
use conductivity calibration for other ranges

5, 10, 30 sec, 1, 2, 5, 10, 15, 30, 60, 120, 180 min
(max 1000 samples)

8

INITIAL PREPARATION

The instrument is supplied complete with batteries. See Batteries Replacement for details, page 63.
To prepare the instrument for field measurements close the serial communication socket with proper

stopper (to ensure waterproof protection).
Connect the EC probe to the DIN connector on the top of the instrument. Tighten the thread ring. Make

sure the probe sleeve is properly inserted.
Turn the instrument ON by pressing ON/OFF key.
At start‑up the display will show the Hanna logo for a few seconds followed by the percentage indication

of the remaining battery life and the “Loading Log...” message, then enters the measurement mode.

The Auto Power Off feature turns the instrument off after a set period (default 30 min) with no button
pressed to save battery life. To set another period or to disable this feature, see SETUP menu on
page 35. The instrument continues to monitor the inputs and memorize readings if the automatic
logging is enabled and started. To stop autologging press StopLog key or simply power off the
instrument by pressing the ON/OFF key.

The Auto Light Off backlight feature turns the backlight off after a set period (default 1 min) with
no buttons pressed. To set another period or to disable this feature, see SETUP menu on page 35.

OPERATIONAL GUIDE

MEASUREMENTS

Immerse the probe into the solution to be tested. The sleeve holes must be completely submerged. Tap
the probe repeatedly to remove any air bubbles that may be trapped inside the sleeve.

If needed, press RANGE repeatedly until the desired range (EC, Resistivity, TDS, Salinity) is selected
on the LCD.

Allow for the reading to stabilize. The main LCD line displays the measurement in the selected range,
while the temperature is displayed on the lower LCD line.

9

EC range

The conductivity range is from 0 to 400 mS/cm. The actual conductivity range (the uncompen‑
sated conductivity) is up to 1000 mS/cm. The instrument will display conductivity readings up to
1000 mS/cm.

OPERATIONAL GUIDE

Note: The symbol in front of the temperature reading means that the temperature can be
entered by the user (Manual option selected in SETUP, or temperature out of range).

Resistivity range

The reciprocal of the conductivity of a material is the resistivity.

TDS range

A conductivity measured value can be corrected to a total dissolved solids value using the TDS factor.

Salinity

The salinity is derived from the conductivity of a sample.

Salt % range

The percent of salinity in a sample is dependent on the sample and the salinity coefficient.

10

For practical reasons, the salinity of a solution is derived from the salinity of the seawater. Two methods
of calculating the salinity from the conductivity are supported:

• Natural seawater scale

• Practical salinity scale

Natural seawater scale (UNESCO 1966)

According to the definition, salinity of a sample in ppt is calculated using the following formula:

CT(sample)

RT=

C(35;15)·r

rT=1.0031·10
R=RT+10‑5RT(RT–1.0)(T–15.0)[96.7‑72.0RT+37.3R
S=‑0.08996+28.2929729R+12.80832R2–10.67869R3+5.98624R4–1.32311R

T

‑9 T4

–6.9698·10

‑7 T3

+1.104259·10

‑4 T2

+2.00564·10

2

–(0.63+0.21R

T

‑2

T+6.766097·10

2

)(T–15.0)]

T

‑1

5

where:
RT ‑ coefficient;
CT(sample) ‑ uncompensated conductivity at T °C;
C(35;15)= 42.914 mS/cm ‑ the corresponding conductivity of KCl solution
containing a mass of 32.4356 g KCl / 1 Kg solution;
rT ‑ temperature compensation polynom.

Note: The formula can be applied for temperatures between 10 °C and 31 °C.
To access this range press Mode while in Salinity range until the seawater scale [SW] is

displayed.

Practical salinity scale

OPERATIONAL GUIDE

This is a practical scale based on the precise measurement of the electrical conductivity of a solution
with a known salinity range.

The relationship derived from the scale relates salinity, conductivity, temperature and pressure
and use a solution with a salinity of 35 ‰ as datum point. This is taken to have a conductivity
of 42.914 mS/cm of 15 °C at standard atmospheric pressure.

11

According to the definition, salinity of a sample in PSU (practical salinity units) is calculated using
the following formula:

OPERATIONAL GUIDE

RT ‑ coefficient;
CT(sample) ‑ uncompensated conductivity at T °C;
C(35;15)= 42.914 mS/cm ‑ the corresponding conductivity of KCl solution
containing a mass of 32.4356 g KCl/1 Kg solution;
rT ‑ temperature compensation polynom

a0 = 0.008 b0= 0.0005
a1 = ‑0.1692 b1= ‑0.0056
a2 = 25.3851 b2= ‑0.0066
a

= 14.0941 b3= ‑0.0375

3

a

= ‑7.0261 b4= 0.0636

4

a

= 2.7081 b5= ‑0.0144

5

c

= 0.008

0

c

= 0.0005

1

X = 400R
Y = 100R
f (T)= (T‑15)/[1+0.0162(T‑15)]

T

T

12

Notes: The formula can be applied for salinity values between 0 and 42 PSU.

The formula can be applied for temperatures between -2 °C and 35 °C.

To reach this range press Mode while in Salinity range until the practical salinity scale [PSU] is
displayed.

Notes: If the meter displays the top of the range blinking, the reading is out of range.
If the stability indicator “ ” blinks, the reading is unstable.
Make sure the meter is calibrated before taking measurements.
If measurements are taken successively in different samples, for accurate readings it is recommend-

ed to rinse the probe thoroughly with deionized water before immersing it into the samples.
TDS reading is obtained by multiplying the EC reading by the TDS factor, which has a default

value of 0.50. It is possible to change the TDS factor in the 0.40 to 1.00 range by entering
SETUP mode.

The probes designed to work with this instrument have an internal ID identification. Every time the
instrument detects probe changing, it reminds the user to update the cell constant of the new probe
being used and to calibrate in the appropriate EC range.

OPERATIONAL GUIDE

13

The EC, Resistivity and TDS scales are autoranging. The meter automatically sets the scale with the
highest possible resolution.

By pressing Lock, the autoranging feature is disabled and the current range is frozen on the LCD.
The “Range: Locked” message is displayed. To restore the autoranging option press “AutoRng”

functional key again.

AUTORANGING

The autoranging mode is also disabled by selecting a fixed range in the SETUP menu. While in fixed
range mode the instrument will display the readings with the fixed resolution. A maximum of 6 digits
can be displayed. The top of the fixed range is displayed blinking when the reading exceeds this value.

To disable fixed range mode enter SETUP and select autoranging mode.

Note: Autoranging is automatically restored if the range is changed, if the calibration mode
is entered, or if the meter is turned off and back on again.

14

Two selectable temparature sources are available: reading directly from the sensor inside the probe
or manual entry.

Three options of compensating temperature are available:

Linear Temperature Compensation: The conductivity of a solution with a specific electrolyte

concentration changes with temperature. The relationship of the change in conductivity as a function
of temperature is described by a solution’s temperature coefficient. This coefficient varies with each
solution and is user selectable (see SETUP mode).

Non Linear Temperature Compensation: for natural water measurements.

The conductivity of natural water shows strong non linear temperature behavior.

A polynomial relationship is used to improve the accuracy of the calculated results.

TEMPERATURE COMPENSATION

Note: Conductivity measurements of natural water can only be performed at temperatures
ranging from 0 to 36 °C. Otherwise the “Out T range” message will be displayed blinking.

No Temperature Compensation (No TC): The temperature shown on the LCD is not taken into

account.

To select the desired option enter Setup menu (see page 35).
If the temperature is out of the ‑20 °C ‑ 120 °C range the instrument will do no temperature

compensation.

15

The conductivity of an aqueous solution is the measure of its ability to carry an electrical current by
means of ionic motion.

The conductivity invariably increases as the temperature rises.
It is affected by the type and number of ions in the solution and by the viscosity of the solution itself.

Both parameters are temperature dependent. The dependency of conductivity on temperature is
expressed as a relative change per Celsius degree at a particular temperature, commonly as percent
per °C (%/°C).

The following table lists the temperature dependence of the HANNA calibration buffers.

°C °F

0

5
10
15
16
17

CONDUCTIVITY VERSUS TEMPERATURE CHART

18
19
20
21
22
23
24
25
26
27
28
29
30
31

32.0

41.0

50.0

59.0

60.8

62.6

64.4

66.2

68.0

69.8

71.6

73.4

75.2

77.0

78.8

80.6

82.4

84.2

86.0

87.8

HI7030
HI8030

(µS/cm)

7150
8220

9330
10480
10720
10950
11190
11430
11670
11910
12150
12390
12640
12880
13130
13370
13620
13870
14120
14370

HI7031
HI8031

(µS/cm)

776

896
1020
1147
1173
1199
1225
1251
1278
1305
1332
1359
1386
1413
1440
1467
1494
1521
1548
1575

HI7033
HI8033

(µS/cm)

64
65
67
68
70
71
73
74
76
78
79
81
82
84
86
87
89
90
92
94

HI7034
HI8034

(µS/cm)

48300
53500
59600
65400
67200
68500
69800
71300
72400
74000
75200
76500
78300
80000
81300
83000
84900
86300
88200
90000

HI7035
HI8035

(µS/cm)

65400
74100
83200
92500
94400
96300

98200
100200
102100
104000
105900
107900
109800
111800
113800
115700
117700
119700
121800
123900

HI7039
HI8039

(µS/cm)

2760
3180
3615
4063
4155
4245
4337
4429
4523
4617
4711
4805
4902
5000
5096
5190
5286
5383
5479
5575

16

Pharmaceutical laboratories working in the US market are obliged to respect the regulations set down
by the US Pharmacopoeia (USP). The 5th supplement of USP24‑NF19 lays down the rules for checking
the quality of pure or fully deionized water used for the production of injection products.

The conductivity of water provides information on its chemical composition. It is therefore logical that
conductivity is the main parameter to measure.

The conductivity of water is a measure of the ion mobility through this water. The conductivity partly
depends on the pH, the temperature and the amount of atmospheric carbon dioxide, which has been
dissolved in water to form ions (intrinsic conductivity). The conductivity also depends on the chloride,
sodium and ammonium ions initially present in water (extraneous conductivity).

The conductivity (intrinsic and extraneous) of the water is measured at Stage 1 and compared to
values listed in a table to evaluate if the studied water is suitable or not for use in pharmaceutical
applications. If the sample fails Stage 1, additional tests have to be performed (Stage 2 and 3) in
order to determine if the excessive conductivity value is due to intrinsic factors or extraneous ions.

USP Requirements

Automatic temperature correction must not be used.

Instrument specifications

Minimum resolution of 0.1 µS/cm on the lowest range. Excluding the cell accuracy, the instrument
accuracy must be ±0.1 µS/cm.

Meter calibration

It is accomplished by replacing the conductivity cell with precision resolution traceable to primary
standards (accurate to ±0.1% of the stated value) or an equivalently accurate resistance device.

Cell calibration

Meter conductivity must be measured accurately using calibrated instrumentation. The conductivity
cell constant must be known in ±2%.

Before starting water analysis calibrate in the lowest EC range or set the probe cell constant (enter
the value written in the calibration certificate delivered with the probe).

Stage 1

Determine the temperature and conductivity of the water.

• Rinse the probe carefully with deionized water. Check that the 4 rings, sleeve holes and the
temperature sensor are immersed in the sample and that no air bubbles are trapped. Connect
the probe to the meter, enter USP mode and press the Stage 1 key. The instrument will perform
a temperature and conductivity measurement (using a non‑temperature corrected conductivity
reading).

USP MEASUREMENT

17

• Using the Stage 1 temperature and conductivity requirement table the corresponding conductivity
limit at that temperature is determined.

• If the measured conductivity is not greater than the table value the water meets the requirements
of the test for conductivity. If the conductivity is higher than the table value, proceed with Stage 2.

Stage 1 table

Temperature and conductivity requirements *

(for the non‑temperature compensated conductivity measurements only)

USP MEASUREMENT

(*) Values from USP ‑ NF Fifth Supplement

Temperature

°C

0 0.6

5 0.8

10 0.9

15 1.0

20 1.1

25 1.3

30 1.4

35 1.5

40 1.7

45 1.8

50 1.9

55 2.1

60 2.2

65 2.4

70 2.5

75 2.7

80 2.7

85 2.7

90 2.7

95 2.9

100 3.1

Conductivity

µS/cm

18

Physical Tests / Water Conductivity (645) 3465‑3467

Stage 2

Determine the influence of CO2.

Note: Stability criteria <0.5 %/min corresponds in fact to a change in conductivity <0.02 µS/cm
per minute (equivalent to 0.1 mS/cm per 5 minutes), as required in the Stage 2 USP document.

• Transfer a sufficient amount of water (100 mL or more) to a thermostatic vessel, and stir the
test specimen. Adjust the temperature and maintain it at 25±1 °C. We recommend using a
thermostatic bath.

• Rinse the cell carefully with deionized water. Place the conductivity probe in the sample and dip
it in the thermostatic vessel containing the sample. Check that the 4 rings and sleeve holes are
immersed in the solution.

• Press Stage 2.

• When the conductivity value is stable, if the conductivity is not greater than 2.1 µS/cm the water
meets the requirements of the test, for conductivity.

If the conductivity is greater than 2.1 µS/cm proceed with Stage 3.

Stage 3

Determine the combined effect of the CO2 and pH.
Use a Hanna Instruments pH meter.
Take care that the instrument is calibrated in at least two points using pH 4.01 and pH 7.01 Hanna

buffers.
Perform the following test within approximately 5 minutes of the conductivity determination while

maintaining the sample temperature at 25±1 °C.

• Add the Saturated KCl Solution to the sample (0.3 mL per 100 mL of the test specimen), and
determine the pH to the nearest 0.1 pH unit.

• Press Stage 3 key, then enter the corresponding pH reading.

• Referring to the Stage 3 pH and conductivity requirement table the instrument determines the
conductivity limit at the measured pH value. If the measured conductivity is no greater than the
conductivity requirements for the pH determined the water meets the requirements of the test for
conductivity. If the measured conductivity is greater than this value or the pH is outside of the
range of 5.0 to 7.0, the water does not meet the requirements of the test for conductivity.

USP MEASUREMENT

19

(For atmosphere and temperature equilibrated samples only)

USP MEASUREMENT

Stage 3

pH and conductivity requirements

pH Conductivity

µS/cm

5.0 4.7

5.1 4.1

5.2 3.6

5.3 3.3

5.4 3.0

5.5 2.8

5.6 2.6

5.7 2.5

5.8 2.4

5.9 2.4

6.0 2.4

6.1 2.4

20

6.2 2.5

6.3 2.4

6.4 2.3

6.5 2.2

6.6 2.1

6.7 2.6

6.8 3.1

6.9 3.8

7.0 4.6

Press Mode key while in EC range to enter USP mode.
The instrument will display USP on the main screen.

Press Stage 1 to start with first stage evaluation.
Press Stage 2 to start with second stage evaluation.
If Stage 1 is pressed, a tutorial screen is displayed.

Use the / keys to scroll the tutorial message.
Press Continue to skip the tutorial message and enter EC measuring mode.

USP MODE PROCEDURES

If the temperature source is manual entry, press USP Fact. to select USP factor to be changed
(the is displayed before the 100% value). To increase the accuracy of the analysis decrease the USP

factor value.
Wait until reading is stable.
If the sample reading meets the USP Stage 1 criteria, the “USP Met” message will be displayed.

Press Report to view report.

21

Press Log to store USP Stage 1 report.

The report number and the amount of free log space in % is displayed for several seconds.

Note: If the log space is full enter view logged data mode by pressing RCL key and free log
space by deleting previously stored records.

If the sample reading didn’t meet the USP Stage 1 criteria, the “USP Not Met” message is displayed.

USP MODE PROCEDURES

Press ESC to return to the USP main screen.
Press Report to view USP report.

Press Log to store the Stage 1 report.
Press Stage 2 to enter USP Stage 2 mode.
The USP Stage 2 tutorial screen is displayed.

22

Use the / keys to scroll the tutorial message.
Press Continue to skip the tutorial message and enter USP Stage 2 measuring mode.

Wait until the reading is stable (about 5 minutes).

Note: If the input record has an instability higher than 1 mS, stability period will be reset. The
completion time bar will remain empty.

The “USP Met” message will be displayed if the USP Stage 2 criteria is reached.

Press Report to view the USP report.

Press Log to store report.

Notes: The report number will be the same as at the Stage 1 report (informations of the
same analysis).

If the log space is full enter view logged data mode by pressing RCL key and free log space
by deleting previously stored records.

The “USP Not Met” message is displayed if the USP Stage 2 criteria is not met.

USP MODE PROCEDURES

Press Report to view report.

23

Press Stage 3 to enter in Stage 3 water analysis.
The USP Stage 3 tutorial is displayed.

Press Continue to enter USP Stage 3 analysis.
The instrument will display the sample pH setting mode.

USP MODE PROCEDURES

Use a calibrated pH meter to read the pH value of the sample.
Use / keys to set the value to that displayed on the pH meter.
Press Accept to confirm the pH setting.
The USP Stage 3 report will be displayed.

24

The report will include all stages information.
Press key to scroll the report pages .

Press Log to store the report.
Press ESC to return to USP main screen.

Notes: The Stage 3 report will include the information about Stage 1 and Stage 2.

If the log space is full enter view logged data mode by pressing RCL key and free log space

by deleting previously stored records.

To enter User Calibration screen press CAL key while in EC or Salinity range.

From EC range

Press the corresponding functional key to enter:

• EC user calibration.

• Probe replatinization.

• Temperature user calibration.

From Salinity % range

USER CALIBRATION

Press the corresponding functional key to enter:

• Salinity % user calibration.

• Temperature user calibration.

25

It is recommended to calibrate the instrument frequently, especially if high accuracy is required.
The EC range should be recalibrated:

• Whenever the EC electrode is replaced.

• At least once a week.

• Before USP measurement.

• After testing aggressive chemicals.

EC CALIBRATION

• When calibration alarm time out is expired ‑ “CAL DUE” blinks (if feature is enabled in SETUP).

• If “Outside Cal Range” message blinks during EC measurement (the measurement range is not

covered by current calibration, if feature is enabled in SETUP).

Note: TDS and Resistivity readings are automatically derived from the EC reading and no

specific calibration is needed.

PROCEDURE

HI98192 instrument offers a choice of 7 memorized standards (0.00 µS/cm, 84.0 µS/cm,

1.413 mS/cm, 5.00 mS/cm, 12.88 mS/cm, 80.0 mS/cm and 111.8 mS/cm).

For accurate EC measurements, it is recommended to perform a calibration in maximum allowed
points. However, at least a two point calibration is suggested (offset calibration in 0.00 µS and one
in any other calibration standard).

The instrument will automatically recognize the standards and skip the standard used during calibration.

• If a five point calibration is performed, one of the points must be 0.0 µS (offset).

• Pour small quantities of selected standard solutions into clean beakers. For accurate calibration

use two beakers for each standard solution, the first one for rinsing the electrode and the second
one for calibration.

• Remove the protective cap and rinse the electrode with some of the standard solution to be used

for the first calibration point.

26

FIVE POINT CALIBRATION

• It is recommended to perform the first point calibration as offset calibration.

• Tap the probe repeatedly to remove any air bubbles that may be trapped inside the sleeve.

• For offset (zero) calibration, just leave the dry probe in the air.

• From EC range press CAL to enter calibration screen.

• Leave the probe in the air and press EC. The instrument will display the measured EC on the LCD,

first expected standard and the temperature reading.

• If necessary, press the keys / to select a different standard value.

• The “ ” tag will blink on the LCD until the reading is stable.

• When the reading is stable and within range of the selected buffer, CFM functional key is displayed.

• Press CFM to confirm first point.

• The calibrated value and the second expected standard value is then displayed on the LCD.

• After the first calibration point is confirmed, immerse the EC electrode into the second standard

solution and stir gently. Tap the probe repeatedly to remove any air bubbles that may be trapped
inside the sleeve. The instrument will automatically detect the standard after several seconds.

EC CALIBRATION

• If necessary, press the / keys to select a different standard value.

• The “ ” tag will blink on the LCD.

• When the reading is stable and within range of the selected standard, the CFM functional key is

displayed.

27

• Press CFM to confirm calibration.

• The calibrated value and the third expected standard value will be displayed.

EC CALIBRATION

• After the second calibration point is confirmed, immerse the EC electrode into the third standard

solution and stir gently. Tap the probe repeatedly to remove any air bubbles that may be trapped
inside the sleeve.

The instrument will automatically detect the standard value.

28

• If necessary, press the keys / to select a different standard value.

• The “ ” tag will blink on the LCD until the reading is stable.

• When the reading is stable and within range of the selected standard, the CFM functional key is

displayed.

• Press CFM to confirm calibration.

• The calibrated value and the fourth expected standard value will be displayed.

• After the third calibration point is confirmed, immerse the EC electrode into the fourth standard
solution and stir gently. Tap the probe repeatedly to remove any air bubbles that may be trapped
inside the sleeve.

• The instrument will automatically detect the standard value.

• If necessary, press the / keys to select a different standard value.

• The “ ” tag will blink on the LCD until the reading is stable.

• When the reading is stable and within range of the selected standard, the CFM functional key is
displayed.

EC CALIBRATION

• Press CFM to confirm calibration.

29

• The calibrated value and the fourth expected standard will be displayed.

• After the fourth calibration point is confirmed, immerse the EC electrode into the fifth standard
solution and stir gently.

EC CALIBRATION

• If necessary, press the / keys to select a different standard value.

• The “ ” tag will blink on the LCD until the reading is stable.

• When the reading is stable and within range of the selected standard, the CFM functional key is
displayed.

• Press CFM to confirm calibration.

• The instrument stores the calibration values and returns to normal measurement mode.

FOUR, THREE or TWO POINT CALIBRATION

30

• Proceed as described in “FIVE POINT CALIBRATION” section.

• Press CAL or ESC after the appropriate accepted calibration point. The instruments will return to
measurement mode and will store the calibration data.

ERROR SCREENS

Wrong standard

The calibration cannot be confirmed.
The EC reading is not within range of the selected standard. Select another standard using the

/ keys.

CLEAR CALIBRATION

Press Clear functional key when displayed to clear old calibrations.
All old calibrations will then be cleared and the instrument continues calibration. The points confirmed

in current calibration are kept.

Note: If Clear calibration is invoked during the first calibration point, the instrument returns
to measurement mode.

REPLACE CALIBRATION STANDARD

Each time a standard is confirmed the new calibration parameters replace the old calibration parameters
of the corresponding standard.

If the current standard has no correspondence in the existing stored calibration structure and this is not
full, the current standard is added to the existing stored calibration (up to 5 standards).

If the existing stored calibration is full (five calibration points) after confirming the calibration point,
the instrument will ask which buffer will be replaced by current standard.

EC CALIBRATION

Press / keys to select another standard to be replaced.
Press CFM to confirm the standard that will be replaced.
Press CAL or ESC to leave replace mode. In this case, the standard will not be stored.

Note: The replaced standard is not removed from calibration list and it can be selected for

the next calibration points.

31

NaCl CALIBRATION

NaCl calibration is a one point procedure in 100.0% NaCl solution. Use the HI7037 calibration solution
(seawater solution) as a 100% NaCl standard solution.

• To enter NaCl calibration select the Salinity % range and press CAL.

• The instrument enters the Salinity calibration screen.

• Press Salt. The measured % NaCl, the temperature and the 100% NaCl standard are displayed.

EC CALIBRATION

• Rinse the probe with some of the calibration solution or deionized water. Immerse the probe into

HI7037 solution. Tap the probe repeatedly to remove any air bubbles that may be trapped inside

the sleeve.

• The “ ” tag will blink on the LCD until the reading is stable.

• When the reading is stable, the CFM functional key is displayed.

Press CFM to confirm calibration.

• The instrument returns to measurement mode.

32

Notes: If the uncalibrated reading is too far from the expected value, calibration is not recognized.
The “Wrong” message will be displayed.

The meter uses 1.90 %/ °C temperature compensation factor during calibration. If the “Temperature
Coef” in the SETUP menu has been set to a different value, when exiting calibration mode, the
displayed value might be different from the nominal standard value.

GLP is a set of functions that allows storage and retrieval of data regarding the maintenance and
status of the electrode.

All data regarding EC and NaCl calibration is stored for the user to review when necessary.

EXPIRED CALIBRATION

The instrument is provided with a real time clock (RTC), in order to monitor the time elapsed since
the last EC/NaCl calibration.

The real time clock is reset every time the instrument is calibrated and the “Expired Calibration”
status is triggered when the instrument detects a calibration time out. The “CAL DUE” tag will start
blinking to warn the user that the instrument should be recalibrated.

The calibration time out can be set (see SETUP for details, page 35) from 1 to 7 days or can be disabled.
For example, if a 4 days time out has been selected, the instrument will issue the alarm exactly 4

days after the last calibration.
However, if at any moment the expiration value is changed (e.g. to 5 days), then the alarm will be

immediately recalculated and appear 5 days after the last calibration.

GOOD LABORATORY PRACTICE (GLP)

Notes: When the instrument is not calibrated or calibration is cleared (default values loaded)
there is no “Expired Calibration”, and the display always shows the “CAL DUE” tag blinking.
When an abnormal condition in the RTC is detected, the instrument forces the “Expired
Calibration” status.

LAST EC CALIBRATION DATA

The last pH calibration data is stored automatically after a successful calibration.
To view the EC calibration data, press GLP when the instrument is in the EC measurement mode.

33

The instrument will display a lot of data including calibration standards, offset, time and date, etc.

Use the / keys to select the offset or calibration standards, in order to view new information.
To see more information press More.

• More information regarding offset.

• More information regarding standards.

GOOD LABORATORY PRACTICE (GLP)

Notes: The standards that are displayed in video inverse mode are from previous calibrations.
“No user calibration” message is displayed if all calibrations are cleared or the instrument was

not calibrated in the EC range.

34

LAST NaCl % CALIBRATION DATA

Last NaCl calibration data is stored automatically after a successful calibration.
To view the NaCl calibration data, press GLP key while in NaCl measurement mode.
The instrument will display the NaCl information: calibration date, time and offset.

SETUP mode allows viewing and modifying the measurement parameters.
These are general SETUP parameters for all the ranges and range specific parameters.
The following table lists the general SETUP parameters, their valid range and the factory default settings.

New Description Valid value Default

Select profile Add/View or select a profile
Logging

interval

Backlight Backlight level 0 to 7 4
Contrast Contrast level 0 to 20 10
Auto light off Time until backlight is ON Disabled

Time for automatic logging 5, 10, 30 s

1, 2, 5, 10, 15, 30, 60,
120, 180 min

1, 5, 10 min

Disabled

(Log on demand)

SETUP

1

Auto power off Time after the instrument is

powered OFF

Date/Time 01.01.2006 to 12.31.2099

Time Format AM/PM or 24 hours 24 hours

Date format DD/MM/YYYY

Language Message display language Up to 3 languages English
Beep ON Beeper Status Enabled or Disabled Disabled
Instrument ID Instrument Identification 0000 to 9999 0000
Baud Rate Serial Communication 600, 1200, 2400, 4800,

Meter
information

Displays general
infomation

Disabled
5, 10, 30, 60 min

00:00 to 23:59

MM/DD/YYYY
YYYY/MM/DD
YYYY‑MM‑DD
Mon DD, YYYY
DD‑Mon‑YYYY
YYYY‑Mon‑DD

9600

30

current date/time

YYYY/MM/DD

9600

35

The following table lists the specific range parameters:

Item Description Valid value Default

SETUP

Calibration
Timeout
(EC NaCl)

Out cal range
check
(EC range only)

Temperature
source

Temperature
compensation

Number of days after
calibration warning is
displayed

Display warning if the
reading is too far from the
calibration points

Temperature entry mode Probe/Manual Probe

Disable, 1 to 7 days Disable

Enable/Disable Disable

No TC, Linear
Non Linear

Linear

Range select Fix one specific range Automatic, Fix one

resolution of EC or
resistivity range

Cell constant Manual set of the cell

constant

Temperature
Coefficient

Temperature
Ref (°C)

Temperature unit °C or °F °C

TDS factor
(TDS range only)

Set the coefficient for linear
temperature compensation

Reference temperature 15 °C, 20 °C, 25 °C 25 °C

0.010 to 10.000 1.000

0.00 to 10.00 %/°C 1.90 %/°C

0.40 to 1.00 0.50

Automatic

36

GENERAL PARAMETER SCREENS

Select Profile
Highlight Select Profile.

Press Select.
The list with stored profiles is displayed.

Press Add to add a new profile to the list (max 10).
Use the / keys to highlight the desired profile.
Press Select to choose the profile and exit to SETUP.

SETUP

Press View to view profile information.
The profile information includes the date and the time when the profile was added, information about

calibration on EC and NaCl range, the setup cell constant, information about temperature setting,
reference temperature, temperature compensation mode, temperature coefficient, temperature source
and information about fixed ranges.

If calibration exists, the GLP functional key is displayed. Press GLP EC to view the corresponding
GLP EC information.

Press GLP NaCl to view the corresponding GLP NaCl information.

Note: If the EC or NaCl calibration was not performed while the current profile is set, or
calibration was cleared, the corresponding GLP key is not displayed.

37

Press Delete to delete selected profile. The Delete key is displayed only if more than one profile is

feature is disabled and

in the list.

SETUP

Press Accept to confirm the deletion or Cancel to cancel and return to the previous screen.
Press ESC to return to profile list screen.

Logging Interval

Highlight Logging interval.

Press Modify.

Use the / keys to select the logging interval. If “Disabled” action is selected, the Autolog
Log on demand is enabled.
Press Accept to confirm the value.

Press ESC to exit without saving.

38

Backlight

Highlight Backlight.

Contrast

Highlight Contrast.

Press Modify.
Use / keys to change contrast then press Accept to confirm.

Press ESC to leave without changing.

Auto Light Off

Highlight Auto Light Off.

SETUP

Press 5, 10 or Disabled to change settings.
Press one of the functional keys to change the option.

Auto Power Off

Highlight Auto Power Off.

Press Modify.

39

Press / keys to select internal interval then press Accept.
Press ESC to leave without changing.

SETUP

Date/Time

Highlight Date/Time.

Press Modify.

Use / keys to select item. Use / keys to change focused values.
Press Accept to confirm new setting, or ESC to leave without changing.

Time Format

40

Highlight Time Format.
Press functional key to change the option.

Date Format

Highlight Date Format.

Language

Highlight Language.

Use the desired functional key to change the option. Wait until new language is loaded.
If any language can be loaded, the instrument will work in safe mode. In this mode all messages are

displayed in English and Help is not available.

Beep On

Highlight Beep On.
Press the displayed functional key to enable/disable key.
When enabled, beep sounds as a short beep every time a key is pressed or when the calibration icon

can be confirmed.
A long beep alert that the pressed key is not active or a wrong condition is detected while in calibration.

SETUP

Instrument ID

Highlight Instrument ID.

Press Modify.

Use / keys to change the instrument ID.
Press Accept to confirm or ESC to exit without saving.

41

Baud Rate

Highlight Baud Rate.

SETUP

Press Modify.

Use / keys to select the desired communication baud. Press Accept to confirm or ESC to exit.

Meter information

Highlight Meter Information.

42

Press Select.
The meter information is displayed:
‑Firmware version
‑Language version
‑mV and temperature factory calibration time/date
‑Battery capacity

RANGE SPECIFIC PARAMETERS
Calibration Timeout

Highlight Calibration Timeout.

Press Modify.

Use / keys to set desired value.
Press Accept to confirm or ESC to return without saving.

Note: If enabled “CAL DUE” warning will be displayed, the set number of days after calibration

is over passed.

SETUP

Out of calibration range check

Highlight Out of cal range check.

Press the corresponding functional key in order to enable/disable this feature. If enabled, a warning
message is displayed when the EC reading is too far from the EC calibration points.

43

Temperature Source

Highlight Temperature Source.

SETUP

Press the displayed functional key in order to change the option.
Select Probe in order to take the temperature automatically with the temperature sensor inside the

electrode.
Select Manual in order to set the temperature using the / keys.

Temperature Compensation

Highlight T. Compensation.

Press one of the selected functional keys to change the option.
Select No TC in order to display actual conductivity (no temperature compensation).
Select Linear in order to automatically compensate conductivity using the set temperature coefficient.
Select Non Linear temperature compensation for natural water measurements, using the natural

water compensation equation.

44

Range Select

Highlight Range Select.

Press Modify to select ranging mode.

Use the / keys to change selection.
Press Accept to confirm or ESC to exit without saving. If Automatic is selected the instrument changes

the range automatically according with the input.
If one of the range is selected all the readings are displayed on the corresponding range.
The readings will be displayed with maximum 6 digits. If the reading exceeds the maximum number

of digits for the fixed range, the maximum value is displayed blinking.

Note: The Range select parameter can be set only in EC and Resistivity range.

Cell Constant

Highlight Cell Constant.

Press Modify to change the cell constant value.

SETUP

Use / keys to change the cell constant value.
Press Accept to confirm or ESC to exit without changing.

45

Temperature Coefficient

Highlight Temperature Coef..

SETUP

Press Modify in order to set the temperature coefficient.

Use the / keys to change the value.
Press Accept to confirm or ESC to exit without changing.

Temperature Reference

Highlight Temperature Ref [°C].

46

Press the corresponding functional key to select the desired reference temperature.

Temperature Unit

Highlight Temperature Unit.

Press the displayed functional key in order to change the temperature unit.

This feature allows the user to log up to 400 readings. All logged data can be transferred to a PC
through the USB port using HI92000 application.

LOGGING THE CURRENT DATA

To store the current reading into memory, press LOG while in measurement mode.
The instrument will display the record number and the amount of free log space for several seconds

after the LOG option is selected.

If the log space is full, the “Log space is full” message will be displayed for few seconds when Log
key is invoked.

Enter View Logged Data mode and delete records in order to free log space.

LOG ON DEMAND

VIEW LOG ON DEMAND DATA

Press RCL to enter View Logged Data mode.

Press Man.Log to enter the log on demand range selection.

47

Use / keys to highlight the desired range then press View.
The list of records corresponding to the selected range is displayed.

LOG ON DEMAND

If no data were logged on the current range, the instrument will display “No Records” message.
Use / keys to scroll between the records from the list.

Press Delete All to enter Delete All screen.
Press Delete to enter Delete records screen.
Press More to view more information of the selected record.

If More is pressed:
Use Pg Up or Pg Down keys to toggle the complete information screens.
Use / keys to scroll between stored records.
If Delete is pressed:

48

Use / key to select the record to be deleted and then press CFM.
Press ESC to exit.
If Delete All is pressed the instrument asks for confirmation.
Press CFM to confirm or ESC to exit without deleting.

For USP range, the instrument will display the sample ID, analysis time and date:

Use / keys to select the desired record.
Press Delete to enter delete one record mode.
Press Delete All to enter delete all mode.
Press More to view the complete record information.

Press Pg Down or Pg Up to scroll the record screens.

LOG ON DEMAND

49

This feature allows the user to log up to 1000 readings.
All logged data can be transferred to PC through USB port.
The memory space is organized in lots of records. A lot can contain from 1 to 1000 records. The

maximum available lots number is 100.

AUTOLOG

START AUTOLOG

Set the desired logging interval in the Setup menu.
If 5, 10, 30 s or 1 min interval is selected, the Auto Power Off feature is disabled (each sample

stored restarts the Auto Power off counter). For other intervals, the instrument will enter a sleeping mode.
During this mode the instrument continues to monitor the inputs and memorize the reading at the set
interval. To exit sleeping mode, simply press any key (exception ON/OFF).

Note: While in sleeping mode the instrument cannot be powered off by pressing ON/OFF
key. Leave sleeping mode and then press ON/OFF key to power off the instrument.

To start autolog from the measurement screen press StartLog key. The lot number and the amount
of memory space is displayed for several seconds.

If the autolog space is full or the lots number exceeds 100 the “Auto log space full” message is
displayed.

50

VIEW AUTOLOG DATA

Press RCL key to enter View Logged Data mode.

Press AutoLog to enter the automatic log range selection.

Use / keys to highlight the desired range, then press View.
The list of lots corresponding to the selected range is displayed.

If no data were logged on the current range, the instruments will display “No Records!”.
Use / keys to scroll the lot list. Press Delete or Delete All to delete one or all of the lots. The

confirmation is asked as at individual records are deleted.
Press More to view more information.

AUTOLOG

The list of records for the specific lot is displayed.
Press More to view the complete record information.

Press Pg Down or Pg Up to scroll the information screens.

51

To freeze the first stable reading on the LCD press AutoEnd while the instrument is in measurement
mode.

AUTOEND

The ”Wait” symbol will blink until the reading is stable.
When the reading is stable, “Hold” icon will be displayed.

Press Continue in order to enter continuous reading mode.

52

All the instruments are factory calibrated for temperature.
Hanna’s temperature probes are interchangeable and no temperature calibration is needed

when they are replaced.
If the temperature measurements are inaccurate, temperature recalibration should be performed.
For an accurate recalibration, contact your dealer or the nearest Hanna Customer Service Center, or

follow the instructions below.
Press “T” functional key to enter the temperature calibration mode while in EC or Salinity calibration
screens .
It is better to perform a 2 point calibration.
The calibration can be performed in any two points that have at least 25 °C distance between. It is
recommended that the first point be near 0 °C and the second point near 50 °C.

• Prepare a vessel containing ice and water and another one containing hot water (at approximately
50 °C or 122 °F). Place insulation material around the vessels to minimize temperature changes.

• Use a calibrated thermometer with a resolution of 0.1 °C as a reference thermometer. Connect the

HI763133 EC probe with built in temperature sensor to the appropriate socket.

• Immerse the HI763133 probe into the vessel with ice and water as close as possible to the reference
thermometer. Allow a few seconds for the probe to stabilize.

TEMPERATURE CALIBRATION (for technical personnel only)

• Use the / keys to set the calibration point value to that of ice and water mixture, measured
by the reference thermometer. Set the calibration point value to that measured in the reference
thermometer.

• When the reading is stable and within range of the selected calibration point, the CFM functional
key is displayed.

53

• Press CFM to confirm.

• The second expected calibrated point is displayed.

• Immerse the probe into the second vessel as close as possible to the reference thermometer. Allow
a few seconds for the probe to stabilize.

• Use the / keys to set the calibration point value to that measured by the reference
thermometer.

TEMPERATURE CALIBRATION (for technical personnel only)

• When the reading is stable and within range of the selected calibration point, CFM functional key
is displayed.

• Press CFM to confirm. The instrument returns to measurement mode.

54

Note: If the reading is not within range of the selected calibration point or the difference
between first selected point and second selected point is less than 25 °C, “Wrong” message
will blink.

If the Wrong source is the difference between calibration points increase the temperature of
the vessel with hot water.

If the Wrong source is the temperature reading change the probe and restart calibration.
If calibration cannot be performed contact Hanna Service.

For one point calibration press ESC after first point was confirmed.

TEMPERATURE CALIBRATION (for technical personnel only)

55

Data transmission from the instrument to the PC can be done with the HI92000 Windows® compatible
software (optional). HI92000 also offers graphing and on‑line help feature.

Data can be exported to the most popular spreadsheet programs for further analysis.
To connect your instrument to a PC, use an USB cable connector. Make sure that your instrument

is switched off and plug one connector to the instrument USB socket and the other to the serial or
USB port of your PC.

PC INTERFACE

Note: If you are not using Hanna Instruments HI92000 software, please see the following

instructions.

SENDING COMMANDS FROM PC

It is also possible to remotely control the instrument with any terminal program. Use an USB cable
in accordance with the model to connect the instrument to a PC, start the terminal program and set
the communication options as follows: 8, N, 1, no flow control.

COMMAND TYPES

To send a command to the instrument follow the next scheme:
<command prefix> <command> <CR>
where: <command prefix> is a selectable 16 ASCII character
<command> is the command code.

Note: Either lowercase or capital letters can be used.

56

SIMPLE COMMANDS

KF1 Is equivalent to pressing functional key 1
KF2 Is equivalent to pressing functional key 2
KF3 Is equivalent to pressing functional key 3
RNG Is equivalent to pressing RANGE
MOD Is equivalent to pressing MODE
CAL Is equivalent to pressing CAL
UPC Is equivalent to pressing the UP arrow key
DWC Is equivalent to pressing the DOWN arrow key
RCL Is equivalent to pressing RCL
SET Is equivalent to pressing SETUP
CLR Is equivalent to pressing CLR
OFF Is equivalent to pressing OFF

CHR xx Change the instrument range according with the parameter value (xx):

• xx=10 EC range

• xx=11 Resistivity range

• xx=12 TDS range

• xx=13 USP range

• xx=14 NaCl % range

• xx=15 Salinity, Seawater range

• xx=16 Salinity, PSU range
The instrument will answer for these commands with:
<STX> <answer> <ETX>
where: <STX> is 02 ASCII code character (start of text)
<ETX> is 03 ASCII code character (end of text)
<answer>:
<ACK> is 06 ASCII code character (recognized command)
<NAK> is 21 ASCII code character (unrecognized command)
<CAN> is 24 ASCII code character (corrupted command)

COMMANDS REQUIRING AN ANSWER

The instrument will answer for these commands with:
<STX> <answer> <checksum> <ETX>
where the checksum is the bytes sum of the answer string sent as 2 ASCII characters.
All the answer messages are with ASCII characters.

RAS Causes the instrument to send a complete set of readings in according with the current

range:

• EC and temperature readings or EC range.

• Resistivity, EC and temperature readings on Resistivity

• TDS, EC and temperature readings on TDS range

• Salinity, EC, and temperature or Salinity range.
The answer string contains:

• Meter mode (2 chars):

• xx=10 EC range

• xx=11 Resistivity range

• xx=12 TDS range

• xx=13 USP range

• xx=14 NaCl % range

PC INTERFACE

57

• xx=15 Salinity, Seawater range

• xx=16 Salinity, PSU range

• Meter status (2 chars of status byte): represents a 8 bit hexadecimal encoding.

• 0x10 ‑ temperature probe is connected

• 0x20 ‑ autolog in progress

• 0x01 ‑ new GLP data available

PC INTERFACE

• 0x02 ‑ new SETUP parameter

• 0x04 ‑ out of calibration range

• 0x08 ‑ the meter is in autoend point mode

• 0x30 ‑ the instrument is in fixed range

• Reading status (2 chars): R ‑ in range, O ‑ over range, U ‑ under range. First

character corresponds to the primary reading. Second character corresponds
secondary reading.

• Primary reading (corresponding to the selected range) ‑ 10 ASCII chars, including

sign, decimal point and unit.

• Secondary reading (only when primary reading is not EC) ‑ 10 ASCII chars, including

sign, decimal point and unit (if primary reading is not conductivity).

• Temperature reading ‑ 8 ASCII chars, with sign, decimal point, always in °C.

MDR Requests the instrument model name and firmware code (16 ASCII chars).
GLPxx Requests the calibration data record for “xx” profile number.

The answer string contains:

• GLP status (1 char): represents a 4 bit hexadecimal encoding.

• 0x01 ‑ EC calibration available

• 0x02 ‑ NaCl calibration available

• EC calibration data (if available), which contains:

• calibration time (12 chars)

• the number of calibration point (1 char)
For each calibration point:

• the standard value (10 chars)

• offset factor or cell constant (with sign and decimal point)

• time when was calibrated (12 chars)

• salinity calibration

• calibration time (12 chars)

• salinity coefficient (10 chars)

58

PRFxx Request profile “xx” information

The answer string contains:

10 ‑ EC range
11 ‑ Resistivity range
12 ‑ TDS range
13 ‑ USP range
14 ‑ NaCl % range
15 ‑ Salinity, Seawater range
16 ‑ Salinity, Seawater PSU range

• Creation time (12 chars)

• Temperature source (1 char): 0 ‑ probe, 1 ‑ manual entry

• Temperature compensation: 0 ‑ NOTC, 1 ‑ linear TC, 2 ‑ non linear TC

• Beep status (1 char): 0‑ off, 1 ‑ on

• Temperature unit (1 char): 0 ‑ °C, 1 ‑ °F

• Backlight (2 chars)

• Contrast (2 chars)

• Auto light off (3 chars)

• Auto power off (3 chars)

• Baud rate (5 chars)

• Instrument ID (4 chars)

• EC alarm time out interval (2 chars)

• NaCl alarm time out interval (2 chars)

• Logging interval (5 chars)

• Calibration range check (1 char): 0 ‑ off; 1 ‑ on

• TDS factor (6 chars)

• Temperature coefficient (6 chars)

• Reference temperature (6 chars)

• Cable correction resistor (5 chars)

• Cable correction capacitance (4 chars)

• EC fixed range number (1 char)

• Resistivity fixed range number (1 char)

• TDS fixed range number (1 char)

• Language ID (3 chars)

• Cell Constant (7 chars)

PC INTERFACE

59

PAR Requests the setup parameters setting.

The answer string contains:

• Number of profiles (2 chars)

• Current profile ID (2 chars)

• Number of languages (2 chars)

NSLx Requests the number of logged samples.

PC INTERFACE

The command parameter (1 char):

• E ‑ the request is for EC range

• R ‑ the request is for Resistivity range

• T ‑ the request is for TDS range

• N ‑ the requests is for NaCl range

• U ‑ the requests is for USP range

The answer string is the number of samples (4 chars)

ULS Requests information about the status of the USP log reports.

The answer string contains:

• The number of reports (3 chars)
For every USP report the following information are sent:

• Report ID (3 chars)

• Log time (12 chars)

LLS Requests information about the number of lots

The answer string contains:

• The number of lots (3 chars)
For every lot the following information are sent:

• Lot ID (3 chars)

• Log time (12 chars)

• Lot type (1 char): 0 ‑ EC; 1 ‑ Resistivity; 2 ‑ TDS; 3 ‑ NaCl

GLDxxx Requests all the records for the lot with ID = xxx

The answer string contains:
Lot header data:

• Logging interval (1 s) (5 chars)

• Temperature source (1 char)

• Temperature compensation mode (1 char)

• Reference temperature (2 chars)

60

• Temperature coefficient (6 chars)

• Offset factor (6 chars)

• TDS factor (6 chars) (only for TDS lots)

• Salinity coefficient (7 chars) (only for salinity lots)

• Profile ID (4 chars)

• Profile creation time (12 chars)

• Lot start time (12 chars)
Lot record data:

• EC value (8 chars)

• EC unit (1 char): 0 ‑ µS; 1 ‑ mS

• EC over range flag (1 char): R, U, O

• Temperature reading, in °C (8 chars)
Next data is sent if the lot is not for EC range.

• Resistivity or TDS or Salinity (8 chars)

• Reading unit:

• Over range flag (1 char)

• Resistivity: 0 ‑ ohm; 1 ‑ Kohm; 2 ‑ Mohm

• TDS: 0 ‑ ppm; 1 ‑ g/L

• Salinity: 0 ‑ %; 1 ‑ ppt; 2 ‑ PSU

LODxxx Requests the log information for record number “xxx” on range “r”

• “r” is E for EC, R for resistivity, T for TDS and N for salinity
The answering string contains:

• The logged range (2 chars): 10 ‑ EC, 11 ‑ Resistivity, 12 ‑ TDS, 13 ‑ USP,
14 ‑ NaCl %, 15 ‑ Salinity Seawater, 16 ‑ Salinity PSU

For EC, Resistivity, TDS and salinity ranges:

• EC reading (8 chars)

• EC unit (1 char)

• Temperature source (1 char)

• Temperature compensation mode (1 char)

• Reference temperature (2 chars)

• Temperature coefficient (6 chars)

• Cell Constant (7 chars)

• The nearest calibration standard (7 chars)

PC INTERFACE

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PC INTERFACE

• The calibration standard unit (1 char)

• Offset factor (6 chars)

• Temperature reading (8 chars)

• Resistivity or TDS or salinity reading (8 chars)

• Unit (1 char)

• TDS factor (6 chars) or salinity coefficient (7 chars)

• Log time (12 chars)

For USP records:

• Record ID (3 chars)

• Stage 1 status (1 char): 0 ‑ not verified; 1 ‑ USP met; 2 ‑ USP not met

• Stage 2 status (1 char): see Stage 1

• Stage 3 status (1 char): see Stage 1

• Stage 1 data (if exist):

• EC reading (8 chars)

• EC unit (1 char)

• Temperature reading in °C

• Stage 2 data (if exists) ‑ same as Stage 1

• Stage 3 data (if exists)

• pH value (5 chars)

•USP factor (3 chars)

•Cell Constant (1 char)

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Note: “Err3” is sent if record does not exist
“Err4” is sent if the identification range character is not recognized
“Err5” is sent if autolog is in progress
“Err6” is sent if the request range is not available
“Err7” is sent if the instrument is logging
“Err8” is sent if the instrument is not in the measuring mode
“Err9” is sent if the battery low condition is detected and the communication cannot be done

To replace the batteries, follow the next steps:

• Turn OFF the instrument.

• Open the battery compartment by removing the four screws from the back of the instrument.

• Remove the old batteries.

• Insert four new 1.5V AA batteries in the battery compartment while paying attention to the correct
polarity.

• Close the battery compartment using the four screws.

If the battery capacity is less than 20% the serial communication and the backlight feature are not
available.

BATTERIES REPLACEMENT

Note: The instrument is provided with the BEPS (Battery Error Prevention System) feature,
which automatically turns the instrument off when the battery level is too low to ensure
reliable readings.

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SYMPTOMS PROBLEM SOLUTION

Reading fluctuates up and
down (noise).

Display shows the top of the
range reading blinking.

EC probe not properly
connected.

Reading out of range. Recalibrate the meter;

TROUBLESHOOTING GUIDE

Meter fails to calibrate or
gives faulty readings.

At startup the meter displays
Hanna Logo tags
permanently.

Meter shuts off. Dead accumulators, Auto

Broken EC probe. Replace the probe.

One of the keys is blocked. Contact your dealer at any

Power Off feature is enabled:
in this case, meter shuts off
after selected period of non
use.

Ensure the probe is connected
to the meter.
Check that the probe is
immersed in your sample.

Check the sample is within the
measurable range.
Check the range is not fixed
or locked.

Hanna Instruments Service
Center.

Recharge accumulators or
replace accumulator.
Press ON/OFF.

64

“Error” message at start up. Internal error. Contact your dealer at any

Hanna Instruments Service
Center.

The instrument does not start
when pressing ON/OFF.

Initialization error. Press and hold down

ON/OFF for about 20 sec. or

disconnect and then connect
one accumulator.

Rinse the probe with clean water after measurements. If more cleaning is required, remove the probe
sleeve and clean the probe with a cloth or a nonabrasive detergent. Make sure to reinsert the sleeve
onto the probe properly and in the right direction. After cleaning the probe, recalibrate the instrument.

The platinum rings are sustained with glass. Take great care while handling the probe.

REPLATINIZATION

The coating of platinum black on the electrodes of the conductivity cell should be inspected before
and after use for signs of flaking or loss of material. If the coating seems poor, cleaning and repla‑
tinization is required.

To perform probe replatinization, enter calibration screen from EC range by pressing CAL key.

PROBE MAINTENANCE

Put the probe into a beaker with replatinization solution and press Start.

The process can be interrupted by pressing Stop or ESC key.

65

The replatinization process takes about 5 minutes.

Remove the probe from the replatinization solution and rinse it with deionized water.

Code Description

HI70031C 1413 µS/cm, 20 ml sachet, 25 pcs.

HI70039C 5000 µS/cm, 20 ml sachet, 25 pcs.

HI70030C 12880 µS/cm, 20 ml sachet, 25 pcs.

ACCESSORIES

HI6033 84 µS/cm, 500 ml bottle

HI6031 1413 µS/cm, 500 ml bottle

HI7039L 5000 µS/cm, 500 ml bottle

HI7030L 12880 µS/cm, 500 ml bottle

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HI7034L 80000 µS/cm, 500 ml bottle

HI7035L 111800 µS/cm, 500 ml bottle

HI7037L 100% NaCl, 500 ml bottle

HI763123 Platinum four‑ring conductivity/TDS probe with internal temperature

sensor and 1 m (3.3’) cable

HI763133 Four‑ring conductivity/TDS probe with internal temperature sensor and

1.5 m (4.9’) cable

HI92000 Windows® compatible software application

HI920015 Micro USB cable

Recommendations
for Users

Before using Hanna products, make sure that they are entirely
suitable for your specific application and for the environment in
which they are used. Operation of these instruments may cause
unacceptable interferences to other electronic equipment. Take all
necessary steps to correct such interferences.
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 instruments’ EMC performance.
To avoid electrical shock, do not use these instruments when volt‑
ages at the measurement surface exceed 24 Vac or 60 Vdc.
To avoid damage or burns, do not perform any measurement in
microwave ovens.

Warranty

Hanna Instruments reserves the right to modify the design, construction or appearance of its products

The HI98192 is warranted for two years against defects in workmanship and
materials when used for their intended purpose and maintained according to
instructions. Electrodes and probes are warranted for six months. This warranty is
limited to repair or replacement free of charge.

Damage due to accidents, misuse, tampering or lack of prescribed maintenance
is 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 problem. 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 (RGA) number from the
Technical Service department and then send it with shipping costs prepaid. When
shipping any instrument, make sure it is properly packed for complete protection.

without advance notice.

World
Headquarters

Hanna Instruments Inc.
Highland Industrial Park
584 Park East Drive
Woonsocket, RI 02895 USA
www.hannainst.com

Local Office

Hanna Instruments USA
270 George Washington Highway
Smithfield, RI 02917
Phone: [phone]
Fax: [phone]
e‑mail: [e-mail]

MAN98192 03/16

Printed in ROMANIA