Hach Ultrasonic flow sensor Manuel D'utilisation page 14

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 MENU key
and select Sensor Setup, [Select Sensor].
2. Use the arrow keys to select one of the options and push ENTER.
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 Description
CAL REMINDER Sets a reminder for the next calibration in days, months or
years—Off (default), 1 day, 7, 30, 60, or 90 days, 6 or
9 months, 1 or 2 years
OP ID on CAL Includes an operator ID with calibration data—Yes or No
(default). The ID is entered during the calibration.
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.
14 English
2. If the passcode is enabled in the security menu for the controller,
enter the passcode and push ENTER.
3. Push ENTER when the Reset Cal? screen is shown. All calibration
options are set to the default values.
4. If the option for operator ID is set to Yes in the Calibration Options
menu, enter an operator ID (4 characters) and push ENTER. See
Change calibration options on page 14 for more information.
Modbus registers
A list of Modbus registers is available for network communication. Refer
to www.hach.com or www.hach-lange.com for more information.
Flow pacing (optional)
The flow pacing option can be used to send a signal to a sampler or
SCADA system each time a specified volume is measured. This signal
opens or closes the relays so that the sampler can take a sample. To
use this option, complete the three tasks:
• Connect the sampler or SCADA system to the controller relays
(Connect a sampler with flow pulse volume to the controller
on page 14).
• Set the flow pulse volume and the pulse width
for flow pacing on page 15).
• Configure the relays for the flow pacing
pacing on page 15).
Connect a sampler with flow pulse volume to the
controller
D A N G E R
Electrocution hazard. Always remove power to the instrument before
making electrical connections.
N O T I C E
For detailed information about wiring relays refer to the controller documentation.
(Configure the sensor
(Configure relays for flow