Hanna Instruments hi 98230 User Manual
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INITIAL PREPARATION
INITIAL PREPARATION
INITIAL PREPARATION
INITIAL PREPARATION
INITIAL PREPARATION
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
cover, unwrap the batteries and install them while paying attention
to the polarity. Alternatively, connect the
HI 710005 or HI 710006
voltage adapter to the power adapter plug.
To prepare the instrument for use, connect the pH or ORP (
To prepare the instrument for use, connect the pH or ORP (
HI98240
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.
The meter is now ready to operate.
The batteries charge status or "LINE" message
(if external power adapter is connected) will be
displayed on the LCD for a few seconds.
The meter is now ready to operate.
To maximize battery life, the meter is automatically switched off after a
user selectable period of non-use (default is 5 minutes). If in logging
mode, after the period of non-use, the meter will continue to monitor
pH or mV (
user selectable period of non-use (default is 5 minutes). If in logging
mode, after the period of non-use, the meter will continue to monitor
pH or mV (
HI98240 only) and temperature periodically at the end of
every logging interval. Only the "LOG" indication will be visible on
LCD. While storing data in memory, during the sleep mode, the
reading will appear briefly on the LCD.
Before proceeding with pH measurements follow the calibration proce-
dure.
Note: When the use of an alternate function (FNC, CFM and CAL) is
LCD. While storing data in memory, during the sleep mode, the
reading will appear briefly on the LCD.
Before proceeding with pH measurements follow the calibration proce-
dure.
Note: When the use of an alternate function (FNC, CFM and CAL) is
requested, press and hold the ALT key first and then the
second listed key.
second listed key.
Note: To prevent damage to the electrode, remove the pH electrode
from the sample before turning the meter off.
If the meter is OFF, detach the electrode from the meter before
immersing the electrode in the storage solution.
If the meter is OFF, detach the electrode from the meter before
immersing the electrode in the storage solution.
ON/OFF
SPECIFICATIONS
SPECIFICATIONS
SPECIFICATIONS
SPECIFICATIONS
SPECIFICATIONS
Range
pH -4.00 to 19.99 pH
mV ±400.0 mV (HI98240 only)
±2000 mV autoranging (
HI98240 only)
Temp. -10.0 to 120.0 C (14.0 to 248.0 F)
Resolution
pH 0.01 pH
mV 0.1 mV between ±400mV (HI98240 only)
1 mV outside (
HI98240 only)
Temp. 0.1 C (0.1 F)
Accuracy
pH ±0.01 pH
@25ºC
(
@
20 C/68 F)
mV ±0.5mV between ±400mV (HI98240 only)
±2mV outside (
HI98240 only)
Temp. ±0.5 C (1 F) from 0 to 70 C (32 to 158 F)
±1 C (1.8 F) outside
Typical EMC pH ±0.03 pH
Deviation
Deviation
mV ±1mV between ±400mV (HI98240 only)
±2 mV outside (
HI98240 only)
Temp. ±0.8 C (1.4 F)
pH Calibration
Automatic, at 1 or 2 points with 5 memorized
buffers (4.01, 6.86, 7.01, 9.18 and 10.01 pH)
buffers (4.01, 6.86, 7.01, 9.18 and 10.01 pH)
mV Calibration
Automatic, 2 points at 0 and 350 mV or
(
HI98240 only)
3 points at 0, 350 and 1900 mV
Temperature
Compensation
Automatic from -10 to 120 C (14 to 248 F)
pH Electrode
Amplified pH electrode with built-in tempera-
ture sensor and EEPROM for GLP data and
DIN connector (see accessories)
ture sensor and EEPROM for GLP data and
DIN connector (see accessories)
ORP Electrode
Amplifed ORP electrode with DIN connector
(
HI98240 only)
(see accessories)
Input Impedance
10
12
Ohm
Printer
Low power impact type-belt, 14 characters
per line; 38 mm plain paper (
per line; 38 mm plain paper (
HI 710034)
Printing/Logging
1, 2, 5,10, 15, 30, 60, 120 and 180 minutes
Interval
Power supply
Power supply
4x1.5V AA alkaline type/350 hours typical life
(with 2700mA/h batteries, without printing
and backlight).
12 VDC adapter (
(with 2700mA/h batteries, without printing
and backlight).
12 VDC adapter (
HI710005 or HI710006)
Environment
0 to 50 C (32 to 122 F);
0-95% RH non-condensing
0-95% RH non-condensing
Dimensions
220 x 82 x 66 mm (8.7 x 3.2 x 2.6")
Weight
500 g (18 oz)