Hach HQ440d, Руководство пользователя

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Option Description
Backlight The display backlight is turned off when the key is pushed. Is it possible to set a time
period after which the backlight will automatically power off if no key is pushed.
Mode Select Detailed or Big screen size. Detailed will show more information with smaller numbers
and text. Big will show less information with larger numbers and text.
Note: The screen size can also be selected from the measure mode (refer to Display
description on page 8).
Set the sound options
The meter can make an audible sound when a key is pushed, when stability is reached or when the
calibration reminder is due. The meter also makes an audible sound when it begins transferring data
to a USB storage device and again when the data transfer is complete.
1. Push the key and select Sound.
2. Choose which events will produce an audible sound. Multiple items can be selected.
Option Description
Key Press The meter will make an audible sound whenever a key is pushed.
Stability Alert The meter will make an audible sound whenever measurement stability is reached.
Cal reminder The meter will make an audible sound when calibration is due.
Note: Refer to Set the probe calibration reminder on page 20 to set the calibration
reminder to on or off.
Set the probe calibration reminder
Make sure that a probe is connected to the meter.
1. Push the key and select the probe settings.
2. Select Modify Current Settings.
3. Select Calibration Options.
4. Select Calibration Reminder.
Option Description
Calibration
reminder Reminder repeat: Off, 2 h, 4 h, 8 h, 2 d, 5 d, 7d
Expires: Immediately, Re 30 min, Re 1 hr, Re 2 hr, Continue
Reading
The meter can be set to make an audible sound when calibration is due. Calibration
expires after a specified time set by the user.
Note: The meter cannot be used to read samples after calibration has expired unless
Continue Reading is selected.
Change the temperature units
To select degrees Celsius or Fahrenheit:
1. Push the key and select Temperature Units.
2. Select the Celsius or Fahrenheit option.
Set the measurement mode
One of three modes can be used to specify when measurements are taken and how the data is
stored. When a data point is stored, the result is sent simultaneously to any device (PC/printer/ USB
storage device) that is connected to the meter.
20 English