AMC-400 Series Digital Transmitter with Smart Sensor 2
32
button presses will normally cycle you to an exit point without change.
4. To enter MODBUS Configuration the user must press and hold the pushbutton for >2
seconds and release at the item A01. The MODBUS title “
-FB
” will be displayed.
5. To configure the MODBUS address short press to the item “
F01
” and press and hold for
>2seconds and release to enter sub-item. At this point the current MODBUS address will be
displayed; a short press returns you back to “
F01
” which can lead you to an exit point.
6. To modify the MODBUS address press and hold for >2seconds and release to edit the first
digit of the address. The least significant digit can now be changed, scroll quickly with short
presses and cycle through the number choices from the current number to 9 and then back
to 0. Press and hold >2seconds and release to move to next most significant digit position.
Repeat sequence for second digit and third digit. When the MODBUS address is displayed
use a short press to return to “
F01
”.
7. Use short presses to scroll to item “
-FB
” and push and hold the pushbutton for >2 seconds
and release to return to A01. Use short presses to scroll to item A03.
8. To enter Digital Transmitter Configuration the user must push and hold for >2seconds and
release at item A03. The title “
-du
” will be displayed. Scroll through to d01, push and hold
for >2seconds and release to enable LCD blanking. LCD will blank after 1 minute of
pushbutton inactivity, pressing the pushbutton restores display. Alternatively scroll to d02,
push and hold for >2seconds and release to disable LCD blanking. Or scroll to d03, push
and hold for >2seconds and release to enter Digital Transmitter location label. Location
labeling allows a unique 3 character string to be assigned to Digital Transmitter. This
procedure is similar to entering the MODBUS address, but the choices are alphanumeric.
Note:
Currently location label is not required by a monitor or controller and can be used as
needed to store and retain user information.
9. Items A04 to A06 can be skipped for initial configuration.
5.3 CALIBRATION
This calibration procedure is applicable for all versions of the AMC-400 Digital Transmitter.
Every AMC-400 Digital Transmitter is factory calibrated, so each unit is to be ready for operation
after installation and a 5 minute stabilization time.
The AMC-400 Digital Transmitter and Smart Sensor 2 are equipped with Calibration and
Service indicators. When Calibration or sensor service has occurred the display will interleave
“
CAL
” and/or “
SEr
” respectively during normal gas concentration updates.
Subsequent calibration is required as a part of regular maintenance, but it is not required when
replacing the Smart Sensor 2 module with a factory pre-calibrated Smart Sensor 2 module. See
the Maintenance section of this manual for the recommended calibration schedule.
