Hach SD900 Manuel D'utilisation De Base page 16

Operation
Configure the system settings
1. Push MENU.
2. Go to SYSTEM SETUP.
3. Change the applicable options.
Option
Time/date setup
Communication
Setup base
Language
Liq sensor cal
Pump duty cycle
Thermal setup (AWRS
only)
Set contrast
Password setup
Tubing life
SDI–12 (optional)
Set up a sampling program
A sampling program includes all of the parameters that are necessary to collect samples
automatically. Collect the samples at regular intervals or when the sampling program is complete.
1. Push MENU.
2. Go to PROGRAM SETUP>MODIFY ALL. The first screen is shown.
3. Select or enter the values for each parameter. Use the left and right arrow keys to move left or
right. Use the up and down arrow keys to change a value. Change the units if necessary (gal or
mL) with the arrow keys.
Option
Bottles
16 English
Description
Set the time (24-hour format) and date.
Select the baud rate (19200, 38400, 57600 or 115200) and protocol (Modbus
RTU or ASCII) for the serial port.
Select the sampler base (All weather refrigerated, refrigerated or portable).
Select the language of the controller.
Calibrate the liquid sensor.
Change the pump duty cycle. Range: 75% to 100% (default: 100%).
Change the setpoint temperature inside the refrigerated compartment. Range:
2 to 10 °C (default: 4 °C).
Adjust the contrast of the LCD screen.
Set up a password to control access to the program setup and the system
setup menus. Select ENABLE>YES to set a new password or ENABLE>NO to
activate the current password. If the password is set for the first time, use
900900 as the current password.
Set a reminder when the pump tubing is to be changed. Go to
ENABLE>RESET CYCLES to reset the pump cycle count to 0. Go to
ENABLE>CYCLE LIMIT to change the number of pump cycles that is used for
the reminder. Go to ENABLE>STATUS to show the current number of pump
cycle counts.
Configure the operation of an SDI–12 device. This option is shown only when a
device is found.
Description
Bottle quantity: the number of bottles in the sampler (1, 2, 4, 8 or 24).
Full BTL shutoff: Enabled/Disabled. If enabled, the controller checks for bottle
overflow conditions.
Bottle volume: the volume capacity of each bottle. Range: 50–65000 mL (0.01 -
17.17 gal) (1.7 - 2198 oz)