Инструкция для HACH-LANGE SENSION+ EC71

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3. Use the or to select

Option

Description

Deactivated

Select Deactivated if no printer or PC is connected.

For Printer

Select Dot matrix printer or Thermal printer.

For Computer Select Terminal, LabCom or LabCom Easy. The LabCom

Software controls several modules, pH and conductivity
meters, automatic burettes, Samplers and so on from a
computer. The LabCom Easy software gets pH and
conductivity data from a PC.

Change the date and time

The date and time can be changed from the Date / Time menu.

1. From the main menu use the   or   to select SYSTEM. Confirm.
2. Use the   or   to select Date / Time and confirm.
3. Use the   and   to advance to the next step and use the   or   to

change a value. Confirm.
The current date and time will be shown on the display.

Adjust the display contrast

1. From the main menu use the   or   to select SYSTEM. Confirm.
2. Use the   or   to select Display contrast and confirm.
3. Use the   and   to adjust the contrast of the display and confirm.

Adjust the temperature

The temperature measurement can be adjusted at 25 °C (77 °F) and/or
85 °C (185 °F) to increase accuracy.

1. Put the probe and a reference thermometer in a container of water at

approximately 25 °C and allow the temperature to stabilize.

2. Compare the temperature read by the meter with that of the

reference thermometer. The difference is the adjustment value for
the meter.

Example: reference thermometer: 24.5 °C; meter: 24.3 °C.
Adjustment value: 0.2 °C.

3. Enter the adjustment value for the 25 °C reading:

a. From the main menu use the   or   to select SYSTEM. Confirm.
b. Use the   or   to select Readjust temp. and confirm.
c. Use the   or   to select 25 °C and confirm.
d. Use the arrow keys to enter the adjustment value for 25 °C.

Confirm.

4. Put the probe and a reference thermometer in a container of water at

approximately 85 °C and allow the temperature to stabilize.

5. Compare the temperature from the meter with that of the reference

thermometer. The difference is the adjustment value for the meter.

a. Use the or to select 85 °C and confirm.
b. Use the arrow keys to enter the adjustment value for 85 °C.

Confirm.

c. Select Save changes and confirm.

Change the stirring settings

The magnetic stirrer can be turned on and the stirring speed can be
changed in the Stirring menu.

1. From the main menu use the   or   to select SYSTEM. Confirm.
2. Use the   or   to select Stirring and confirm.
3. To turn on/off the stirrer push  .
4. When the stirrer is turned on, use the   or   to change the stirring

speed in %.

Note: Use the or to change the stirring speed during calibration and
during a measurement.

Change the temperature units

The temperature units can be changed to Celsius or Fahrenheit.

1. From the main menu use the or to select SYSTEM. Confirm.
2. Use the or to select Temperature units and confirm.

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