7
6
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 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.
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 proce-
dure.
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.
ON/OFF
SPECIFICATIONS
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
12
Ohm
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.)
