Hanna Instruments HI 98710 - Manual (Page 8)

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Two different modes to print / log data are available:
1. Timed logging; samples are stored and printed (if print function is
active) at fixed time intervals. Data are stored in the lots 01 to 16.
2. Log on demand; samples are stored and printed (if print function
is active) when the LOG key is pressed. Data are stored in the lot
00. It's possible to perform the Log on demand either in normal
mode or in Timed logging mode.
It is possible to switch from logging without printing to logging with
printing in two ways:
• set the function code 03 to "On" to enable printing, to "Off" to
disable printing
• press ALT and PAPER to toggle between printer enabled and
printer disabled while in Timed logging.
TIMED LOGGING MODE
To start Timed logging, press ALT and LOG.
The lot number will be displayed for a few
seconds then the LOG symbol will appear on
LCD and if printer is enabled a first set of
data will be printed. The "LOG" symbol will
be fixed if printer is enabled and will blink if
printer is disabled.
The printout provides the following information:
a - Lot number
b - Logging interval
c - Date (only for the first printed
sample of the lot or of the day)
d - Sample number
e - Time
f - Readings ("----" means out of range).
Note: channels with no probe connected are not logged nor printed.
If no keys are pressed, the meter enters standby mode to prolong the
battery life and only the "LOG" indication will be visible on LCD. While
logging, during the sleep mode, the last logged reading will appear
briefly on the LCD. To reactivate the LCD press ON/OFF.
HI 98810 - HI 98840
PRINTING / LOGGING FUNCTIONS
To prepare the instrument for use, choose the most appropriate tem-
perature probe(s) for your application (see accessories) and connect it
(them) to the connector(s) located on the top of the instrument.
All the probes have been precalibrated at the factory and no calibra-
tion is needed.
With the meter facing you, channel #1 is the first
connector on the top left hand side.
Press the ON/OFF key to power on the instrument.
To take temperature measurements, simply
insert the probe in the sample to be tested
and allow the reading to stabilize. The tem-
perature is displayed on the upper LCD. The
lower LCD displays the selected channel num-
ber (multi-channel versions only).
The meter selects channel 1 as default. Press CH/
TIME (HI98740 and HI98840 only) or TEMP/TIME
(HI98710, HI98810 only) to view the reading of
the other channels, date and time in the following
order:
• channel 2 temperature reading (HI98740, HI98840 only)
• channel 3 temperature reading (HI98740, HI98840 only)
• channel 4 temperature reading (HI98740, HI98840 only)
• date
• time
Pressing CH/TIME or TEMP/TIME again, the meter returns to channel 1
temperature reading.
If the reading is out of range or the probe is
not connected to a channel, the LCD will
display a dashed line in place of the reading.
Note: To choose between "°C " and "°F" unit, enter the setup code 70.
Note: The meter is factory calibrated. After 1
year since last calibration the "DATE"
symbol starts blinking on the LCD to
warn the user that a recalibration is suggested to maintain the
greatest accuracy of the meter. It is recommended that recali-
bration is performed by authorized technical personnel only.
Contact your nearest HANNA service center.
TAKING TEMPERATURE MEASUREMENTS