Hanna Instruments HI 935002 - Manual (Page 6)

11 10
HI 935009 allows the user to select the auto-off time period through
the front keyboard; press (ALT+) AOFF to enter the mode, then set
the desired auto shut-off interval (8 min, 60 min, or disabled) with
the ALT key; release all buttons, wait a few seconds and the meter
will return to normal measurement mode.
BACKLIGHT FEATURE (HI 935005N and HI 935009)
HI 935005N and HI 935009 models are provided with a Backlight
feature, which can be easily activated through the keyboard by
pressing the BL key or (ALT+) BL keys.
Note: The backlight automatically shuts off after approximately 1
minute with no buttons pressed.
BATTERY COMPARTMENT
2-CHANNEL MODELS (HI 935002 and HI 935009)
HI 935002 and HI 935009 models can monitor two samples through
two independent temperature channels (probes).
The display will show the actual, Hi and Lo (or T1 and T2) values of
the selected channel (T1, T2 or T1-T2). The corresponding tags will
light up to inform the user.
To select the desired channel, use the T1/T2 key.
The 2-channel models are also provided with the DISP function, which
allows the user to select the information to be displayed.
• While in T1 or T2, pressing DISP will switch the display between
standard and relative measurement modes.
In the standard mode, the main body of the LCD shows the
current temperature while the lower portion displays the Hi/Lo
limits for that channel.
When the meter enters relative mode, the current temperature for
that channel is set as the reference temperature. Pressing CLR will
also set the reference to the current temperature.
In relative mode, the main body of the LCD shows the difference
from the reference temperature. The lower portion displays the
current temperature for the selected channel.
• While in T1-T2, pressing DISP will switch between 3 displays:
Note: Pressing T1/T2 to change the channel will not alter the
information chosen to be displayed for each channel (DISP).
Note: Relative mode can not be entered if dashes are shown in the
main portion of the LCD.
HI 935009 HI 935005N