Hach 8000A Manuel D'utilisation page 16

Option Description
Data format Select the cumulative or differential format for data that is
sent to the host computer.
Baud rate Select the baud rate at which the data transfer occurs—
150, 300, 600, 1200, 2400, 4800, 9600 or 19200. The
selection must equal the baud rate of the host computer
I/O port.
Parity Select odd, even or no parity. The transmitting and
receiving devices must have the same parity. Most
counter applications are configured for no parity.
Number of data Select the number of bits (7 or 8) for the data sent from
bits the counter to the host computer. Instrument applications
typically use 8 data bits.
Number of stop Select the number of stop bits (1 or 2) that are put after
bits each character sent from the counter to the host
computer. Most applications use 1 stop bit. For some
applications that use a baud rate of 150, 2 stop bits may
be necessary.
Calibration
Load a calibration
The instrument stores up to four calibration curves.
1. In the Main Functions menu, push CAL to enter the Calibration
Functions Menu.
2. Push SET CAL to access the Set Calibration Functions menu.
3. Push LOAD CAL to select an active calibration curve for the run.
The LOAD CAL button changes to a NEXT PAGE button and the
counter shows information about one of the calibration curves for the
counter.
4. Push the SELCT CNTR key to select a counter, push ENTER and
then select a calibration curve.
5. Push ENTER to load the calibration curve in the display or push
NEXT PAGE to show information about another calibration curve.
16 English
Change a calibration
1. In the Main Functions Menu, push CAL to select the Calibration
Function Menu.
2. Push SET CAL to go to the Set Calibrations Functions menu.
3. Push ALTER CAL to change the current Sensor Calibration
Parameters for a counter. The number of screens shown depends on
the number of counters and the algorithm method used for each
counter.
4. Update or change the parameters.
Option Description
Sensor model The sensor model as shown on the body. The model can
be up to 14 alphanumeric characters long.
Serial number The serial number as shown on the sensor body. The serial
number can be up to 14 alphanumeric characters long.
Comments Information about the calibration that is used for
identification purposes. Can be up to 14 alphanumeric
characters long.
Calibration The date of the calibration in MM/DD/YY format.
date
Material The material used for calibration. Choices are: ISO MTD in
oil, ACFTD in oil, ACFTD in water, latex in oil, latex in
water, glass in oil, glass in water or other. If ISO MTD in oil
is selected, all size readings and printouts will reflect UM(C)
to indicate that a certified material was used in calibration.
Flow rate The flow rate used in the sensor calibration in mL/min. This
information is recorded on the calibration curve supplied
with the sensor.