SenSmart 3000 User's Manual
Document: UM-1003
Revision Level B
25
5.7
LCD Contrast Adj:
LCD Contrast Adj.
may be set for optimum viewing using the menu shown in Figure 5-10.
C ON T R A S T
U P / D OWN t o c h a n g e
N E X T t o E X I T
Figure 5-10: LCD Contrast Adjust Menu
5.8
HELP Screen:
The
HELP
screen contains several pages of information describing how to operate the SenSmart
3000. This is the bottom menu on page 1 of the
SETUP
screen.
5.9
Diagnostics:
IMPORTANT:
Gas monitoring and alarm processing are not performed while using the
Diagnostics menus.
Access requires a special key sequence of four consecutive UP
keystrokes
.
There are two
Diagnostics
menus useful for driving outputs without exposing the sensor to the
target gas. The
OUTPUT
SIMULATION
menu allows setting the 4-20mA output to virtually any
desired value. This is useful for checking responses of devices receiving the SenSmart 3000
’s 4-
20mA output. The
ACTIVATE
RELAYS
menu
allows tripping of alarm relays (if equipped)
without tripping alarm set-points with the target gas. This is useful for testing alarms events such
as lights and audible devices.
* * * WA R N I N G * * *
A l a r m p r o c e s s i n g w i l l
b e h a l t e d d u r i n g
d i a g n o s t i c mo d e !
E D I T t o c o n t i n u e .
A n y o t h e r k e y t o e x i t .
D I A G N OS T I C S
Ou t p u t S t i mu l a t i o n
R e l a y T e s t
OU T P U T S T I MU L A T O R
Ou t p u t 4 . 0 mA
E D I T t o c h a n g e .
N e x t t o e x i t .
EDIT
A C T I V A T E R E L A Y S
R e l a y 1 O F F
R e l a y 2 O F F
R e l a y 3 O F F
Figure 5-11: Diagnostics Menus
5.10 RS-485 / MODBUS SETUP:
The
RS-485 MODBUS SETUP
menu allows setting the RTU address (if RS-485 equipped) for
each SenSmart 3000 on the RS-485 network. Each SenSmart 3000 must have a different RTU
address when communicating on the same 2-wire RS-485 cable. The factory default Baud rate is
9600 but can be adjusted to 1200, 2400, 4800 and 19200. Parity and Stop Bit are fixed at
industry standard values of none and 1.
Note:
If
“
Marker TX LED
” (see section 6.8) is selected
RS-485 MODBUS SETUP
menu is not
available, because the serial port is no longer active.