www.warensortiment.de
Im Langel 4
D-59872 Meschede
Fon: (49) 0 29 03 976 99-0
OPERATING GUIDE
To connect the probe
With the meter turned off, connect the
HI 62911
probe to the DIN socket on the top of the meter by
aligning the pins and pushing in the plug. Tighten the
nut to ensure a good connection. Remove the
protective cap from the probe be-fore taking any
measurements.
To turn the meter ON and check the battery
status
Press the ON/OFF/MODE button until the display
lights up. At start-up, all the LCD segments are dis-
played for 1 second, then the percent indication of the
remaining battery life is shown for another second
(E.g. % 100 BATT). The meter then enters the normal
measuring mode.
Note
: If the display needs to be checked, keep the
ON button pressed while turning the meter on.
The meter will display all segments as long as
the button is pressed.
To freeze the display
While in measurement mode, press the SET/HOLD
button, HOLD appears on the secondary display and
the reading will be frozen on the LCD (E.g. pH 5.73
HOLD). Press any button to return to normal mode.
To turn the meter OFF
While in normal measurement mode, press the
ON/OFF/MODE button. OFF will appear on the
secondary display. Release the button.
Note
: The meter is provided with an acoustic signal
feature which can be disabled using the
switch located in the battery compartment.
Note
: When the meter detects the absence of a
temperature probe at its input, the Automatic
Temperature Compensation is turned off, and
the meter uses a default value of 25°C (77°F)
for the temperature measurement and com-
pensation. In this condition, the secondary LCD
shows 25.0°C (77.0°F) blinking. When a probe
is connected, the meter automatically returns
to the ATC mode, the ATC tag is turned on,
and the temperature is shown on the secon-
dary display.
Peliminary Examination
Remove the instrument from the packing material
and examine it carefully to make sure that no da-
mage has occurred during shipment. If noticeable
damage is evident, notify your dealer.
Note:
Save all packing material until you
are sure that the instrument functions
correctly. All defective items must be
re-turned in the original packing toge-
ther with the supplied accessories.
General Description
HI 99131
is a portable, microprocessorbased pH
and temperature meter with a special probe. The
HI 62911
pH electrode has been specially designed
and fully shielded for applications in plating baths.
The titanium electrode body acts like a Faraday
cage, and allows stable readings even in samples
where strong elec- trical fields are involved. More-
over, a built-in temperature sensor allows simultan-
eous pH and temperature readings and a mini am-
plifier renders measurements impervious to noise
and electrical interferences.
Each meter comes with:
•
HI 62911
pH/temperature probe
• 3x1.5V AA alkaline batteries
• instruction manual
• plastic carrying case
