Hanna Instruments HI 98140 User Manual
Instruction Manual
HI 98140 • HI 98150
Portable Waterproof
pH / ORP Meters
with Smart Electrodes
& Log-On-Demand
www.hannainst.com
Dear Customer,
Thank you for choosing a Hanna Instruments Product.
Please read this instruction manual carefully before using the instru-
ment.
This manual will provide you with all the necessary information for the
correct use of the instrument, as well as a precise idea of its versatility
in a wide range of applications.
If you need additional technical information, do not hesitate to e-mail
us at tech@hannainst.com
These instruments are in compliance with the directives.
TABLE OF CONTENTS
PRELIMINARY EXAMINATION ..................................................................... 3
GENERAL DESCRIPTION ........................................................................... 3
FUNCTIONAL DESCRIPTION .......................................................................5
SPECIFICATIONS .................................................................................. 6
INITIAL PREPARATION .............................................................................. 7
SETUP MODE ..................................................................................8
TAKING pH MEASUREMENTS ................................................................. 1 1
TAKING ORP MEASUREMENTS ............................................................... 12
TAKING TEMPERATURE MEASUREMENTS ................................................ 12
pH CALIBRATION PROCEDURE ............................................................... 13
mV CALIBRATION PROCEDURE .............................................................. 15
TEMPERATURE CALIBRATION PROCEDURE .............................................. 16
LOGGING FUNCTION ............................................................................. 17
GOOD LABORATORY PRACTICE (GLP) ..................................................... 20
LCD BACKLIGHT ............................................................................... 22
DATA TRANSFER TO PC ......................................................................... 22
BATTERY REPLACEMENT ....................................................................... 24
TEMPERATURE-RESISTANCE CORRELATION
FOR HANNA PH SENSITIVE GLASS .......................................................... 25
ELECTRODE CONDITIONING AND MAINTENANCE ...................................... 2 6
ACCESSORIES ...................................................................................... 28
WARRANTY ......................................................................................... 30
CE DECLARATION OF CONFORMITY ........................................................ 31
PRELIMINARY EXAMINATION
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.
Each meter is supplied complete with:
• HI 1618D amplified pH electrode with built-in temperature
sensor, plastic body and DIN connector
• pH 4.01 & pH 7.01 buffer solution (20 mL sachet each)
• Electrode cleaning solution
• Batteries (4 x 1.5V AA alkaline) and 12 Vdc adapter
• Instruction manual and rugged carrying case.
Note: Save all packing material until you are sure that the
instrument functions correctly. All defective items must be
returned in their original packaging together with the supplied accessories.
GENERAL DESCRIPTION
HI 98140 and HI 98150 are two of the most innovative portable pH
meters ever offered.
These instruments feature IP 67 waterproof protection, GLP (Good
Laboratory Practice) capabilities and use the HANNA instruments®’
intelligent electrodes.
These pH electrodes incorporate a chip which memorizes the calibration data performed with a specific instrument. When the “intelligent”
electrode is attached to the meter again, it is automatically recognized. This technology allows the operator to optimize time and
efficiency with unsurpassed safety. It avoids erroneous measurements
taken in the event the pH electrode is substituted after calibration.
This series of electrodes also incorporates a temperature sensor, eliminating the need for an additional temperature probe.
HI 98140 and HI 98150 feature all the most advanced features of
laboratory pH meters. Moreover they are provided with a dual level
LCD which facilitates operation in dimly lit locations.
By pressing a button, these meters can store up to 500 measurements complete with date and hour. Stored data can be displayed
later or downloaded to a computer through an RS232 serial port and
the HI 92000 Windows® compatibile software.
32
These instruments also feature a controlled access to calibration and
GLP settings through a password protection method.
The Battery Error Preventing System (BEPS) detects when the batteries become too weak to ensure reliable measurements.
The backlight feature is automatically disabled when the batteries are
getting low and a clear indication is displayed to warn the user of
this condition. However, the meter continues to measure correctly even
when the low battery indication is displayed. The meter automatically
switches itself off when the batteries are too weak to support proper
function.
For long term field and lab applications, these meters can be connected
to a 12 Vdc adapter.
In addition, the meters allow the user to enter an ID code to uniquely
identify the instruments.
FUNCTIONAL DESCRIPTION
1) Power adapter plug
2) RS232 connector
3) DIN connector for smart electrodes
4) Liquid Crystal Display (LCD)
5) ON/OFF key, to turn the meter ON and OFF
6) ALT key, to activate alternate key function
7) RANGE / GLP key, to select measurement range, to display time
and date, and to view calibration data (with ALT)
8) CAL / CALT key, to enter calibration mode
9) CFM key, to move down or confirm values (with ALT)
10) LOG / RCL key, to store or recall (with ALT) measurements
11) FNC key, to move up or enter setup mode (with ALT)
12) LIGHT / DEL key, to turn the LCD backlight on and off, and to
delete stored data (with ALT)
54
SPECIFICATIONS
INITIAL PREPARATION
Range -4.00 to 19.99 pH / -20 to 120.0°C
HI 98150 only: ±600.0 mV; ±2000 mV
Resolution 0.01 pH
0.1°C (-10 to 120°C) / 1°C (below -10°C)
HI 98150 only: 0.1 mV (±400 mV) /
0.2 mV (±400 to ±600 mV) / 1 mV (outside)
Accuracy (@20°C/68°F) ±0.01 pH
±0.4 °C from 0 to 70°C / ±1°C outside
HI 98150 only: ±0.2 mV (±400 mV) /
±0.4 mV (±400 to ±600 mV) / ±2 mV (outside)
Typical EMC Deviation ±0.02 pH / ±0.4°C
HI 98150 only: ±1 mV (±600 mV) / ±2 mV (outside)
pH Calibration Automatic, 1 or 2 point with 5 memorized buffers
(pH 4.01, 6.86, 7.01, 9.18 and 10.01)
mV Calibration Automatic, 2 point at 0 and 350 mV or
(HI98150 only) 3 point at 0, 350 and 1900 mV
Temperature Compensation
Automatic, -20 to 120°C (-4 to 248°F)
pH Electrode HI 1618D smart electrode with built-in temperature
sensor, DIN connector and 1 m (3.3') cable (included)
ORP Electrode Smart ORP electrode with DIN connector
(HI98150 only; see accessories)
Input Impedance 10
PC Connection Through RS232 serial port,
using HI 920011 connection cable & HI 92000 software
Power Supply 4 x 1.5V AA batteries / approx. 300 hours of use
(with backlight off) or 12 Vdc input
Casing IP 67
Environment 0 to 50°C (32 to 122°F); RH max 100%
Dimensions 196 x 80 x 60 mm (7.7 x 3.1 x 2.4")
Weight 500 g (1.1 lb.)
12
Ohm
Each meter is supplied complete with batteries. Remove the back
cover, unwrap the batteries and install them while paying attention
to the polarity. Alternatively, connect the supplied 12 Vdc adapter to
the power adapter plug.
To prepare the instrument for use, connect the pH or ORP (HI 98150
only) electrode to the connector located on the top of the instrument.
To switch the meter on, press the ON/OFF key.
The batteries charge status or "LINE" message
(if external power adapter is connected) will be
displayed on the LCD for a few seconds.
ON/OFF
The meter is now ready to operate.
To maximize battery life, the meter is automatically switched off after 5
minutes of non-use (this feature is enabled by default and can be
disabled through setup code 20). To reactivate the instrument press
the ON/OFF key.
Before proceeding with pH measurements follow the calibration procedure.
Note: When the use of an alternate function (DEL, FNC, CFM, GLP,
RCL and CALT) is requested, press and hold the ALT key first
and then the second listed key.
Note: to prevent damage to the electrode, remove it from the sample
before turning the meter off.
If the meter is OFF, detach the electrode from the meter before
immersing it in the storage solution.
76
SETUP MODE
Setup can be used to view data regarding instrument status (e.g.
battery charge) or to change the meter parameters (e.g. time).
• To enter this mode press the ALT and
FNC keys when the meter is in measurement mode.
• The setup code "00" will blink on the
lower LCD and "Set" will be displayed on
the upper one.
• Select the code of the desired
parameter using the or
key.
• Press ALT and CFM to confirm the
code.
Note: If ALT and FNC are pressed before code confirmation, the meter
will default to measurement mode.
• If the selected parameter is password protected, the lower LCD will
display "PAS" and the password must be entered to proceed.
Otherwise, the current parameter value will be displayed.
PASSWORD PROTECTION
Setting of time, date and calibration alarm time-out are password
protected and the user will be asked to enter the password to change
these parameters. After code confirmation the upper LCD will display
"0000".
• If password is set to 0000 (factory setting), just press ALT and
CFM to confirm.
• If password is set to a value different from 0000, enter the
password with the up and down arrow keys and then press ALT
and CFM to confirm.
• If password is incorrect the meter displays the "WRONG" indication
and asks for the password again.
• If password is correct, the meter provides access to the parameter.
PARAMETER SETTINGS
• Once the parameter code (and password
if needed) has been entered, the current
value of the selected parameter on the
upper LCD and the parameter code on
the lower LCD will be displayed. The parameter or a part of it will
blink (e.g. only the hour blinks if time has been selected).
• Enter the new value using the arrow keys.
• If there is another part of the parameter to be set (e.g. minutes
for the time), press RANGE to gain access and then enter the new
value using the arrow keys.
• Press ALT and CFM to confirm the value.
• If the entered value is not acceptable, the "WRONG" indication
will be displayed for a few seconds and then the meter will ask for
a correct value.
• If the confirmed value is accepted, the meter will pass to the next
parameter (asking for the password if it is protected).
Note: If ALT and FNC are pressed before parameter value confirma-
tion, the meter will not update the parameter and after
escaping will ask for a new setup code.
The following table lists the setup codes along with the description of
the specific setup items, their valid values and the factory settings
(default):
Code Valid values Default
00 Instrument ID code 0000÷9999 0000
01 Current time
02 Current date
03 Current year
10 Calibration alarm time-out 01÷99 days , OFF OFF
20 Auto-Off/Power down time-out ON, OFF ON
21 Firmware version
22 Battery level test
99 Password
1
1
1
2
hh:mm 00:00
dd:mm 01:01
YYYY 1998
0000÷9999 0000
98
1
The meter automatically checks for entered time/date accuracy as follows:
0≤hh≤23; 0≤mm≤59; 01≤dd≤28/29/30/31; 1≤MM≤12; 1998≤YYYY≤2097.
2
To change the password, the correct code must be entered first. If the password
has been forgotten, the password protected features are no longer accessible;
in this case contact your nearest Hanna Service Center.
Some of the setup parameters are explained below.
Code 00 - Setting the identification (ID) code
When using several identical meters it may be useful to uniquely
identify them by assigning an ID code to each meter.
• Select code 00.
• Enter a 4-digit value using the arrow keys.
• Press ALT and CFM to confirm the value.
Code 20 - Auto-off
The auto-off timeout is fixed at 5 minutes.
• Select code 20 to enable/disable this feature.
Code 22 - Battery level test
• Select code 22.
• If the meter is connected to an external power adapter, the LCD
will display "LINE" otherwise it will display "bAtt" on the upper
display, and the remaining percentage
of battery charge (100% means fully
charged battery and 0% corresponds to
the minimum battery voltage that allows
the meter to operate).
Note: the battery level test is also performed any time the meter is
turned on.
TAKING pH MEASUREMENTS
Connect the pH electrode with the built-in temperature sensor to the meter and press ON/OFF to
power on the instrument. The meter automatically
checks that the stored calibration data correspond to the connected
electrode. The pH range will be automatically set.
If the pH electrode is not connected the LCD will display the "no
probe" message and then dashed lines in place of the readings.
For greatest accuracy, it is recommended to set
the Calibration alarm time-out to the value
appropriate to your specific use and calibrate
the meter as soon as the "DATE" warning
symbol blinks on LCD (see GLP section).
To take pH measurements, simply submerge
the bottom 4 cm (1½") of the electrode in
the solution to be tested and stir gently.
Allow for the reading to stabilize.
The temperature is displayed in the lower LCD.
The pH reading is automatically temperature compensated (ATC).
If the meter displays "----" it means that the reading is out of range.
A blinking reading means that the electrode is "dead".
By continuously pressing the RANGE key the
following information will be displayed on
the upper LCD:
• mV reading (HI98150 only)
The mV scale is autoranging, when the
reading is outside ±600mV the decimal
point automatically disappears.
• Time
• Day - Month
• Year
Pressing RANGE again, the meter returns to pH reading.
Note: When date or time is displayed, it is possible to change them
pressing ALT and FNC with no need to enter setup mode.
Note: If measurements are taken successively in different samples, it
is recommended to rinse the electrode thoroughly with deionized water or, if not available, tap water first and then with
some of the next sample to condition the electrode before
immersing it in the sample.
1110
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