Temperature Calibration; Reset Calibration Options - Hach 3400 Serie Manual Del Usuario

The output signal returns to the active state and the measured sample
value is shown on the measure screen.
Note: If the output mode is set to hold or transfer, select the delay time when the
outputs return to the active state.

Temperature calibration

The instrument is calibrated at the factory for accurate temperature
measurement. The temperature can be calibrated to increase accuracy.
1. Put the sensor in a container of water that is at a known temperature.
Measure the temperature of the water with an accurate thermometer
or independent instrument.
2. Push the MENU key and select Sensor Setup, [Select Sensor],
Calibrate.
3. Select 1 PT Temp Cal and push ENTER.
4. Wait for the value to stabilize and push ENTER.
5. Enter the exact value and push ENTER.
6. Return the sensor to the process and push ENTER.
Exit calibration procedure
If the BACK key is pushed during a calibration, the user can exit the
calibration.
1. Push the BACK key during a calibration. Three options are shown:
Option Description
QUIT CAL Stop the calibration. A new calibration must start from the
beginning.
BACK TO CAL Return to the calibration.
LEAVE CAL Exit the calibration temporarily. Access to other menus is
allowed. A calibration for a second sensor (if present) can be
started. To return to the calibration, push the
select Sensor Setup, [Select Sensor].
2. Use the arrow keys to select one of the options and push ENTER.
14 English
Change calibration options
The user can set a reminder or include an operator ID with calibration data
from the CAL OPTIONS menu.
1. Push the MENU key and select Sensor Setup, [Select Sensor],
Calibrate, Cal Options.
2. Use the arrow keys to select an option and push ENTER.
Option
CAL REMINDER Sets a reminder for the next calibration in days, months or
OP ID on CAL

Reset calibration options

The calibration options can be reset to the factory default options.
1. Push the MENU key and select Sensor Setup, [Select Sensor],
Calibrate, Reset Default Cal.
2. If the passcode is enabled in the security menu for the controller, enter
the passcode.
3. Push ENTER. The Reset Cal? screen is shown.
4. Push ENTER. All calibration options are set to the default values.
5. If the option for operator ID is set to Yes in the Calibration Options
menu, enter an operator ID. Refer to
on page 14.
6. On the New Sensor screen, select whether the sensor is new:
Option Description
Yes
MENU
key and
No
7. Push the BACK key to return to the measure screen.
Description
years—Off (default), 1 day, 7, 30, 60, or 90 days, 6 or 9
months, 1 or 2 years
Includes an operator ID with calibration data—Yes or No
(default). The ID is entered during the calibration.
Change calibration options
The sensor was not calibrated previously with this controller. The
days of operation and previous calibration curves for the sensor are
reset.
The sensor was calibrated previously with this controller.