SenSmart 3000 User's Manual
Document: UM-1003
Revision Level B
14
X MI T T E R C ON F I G
O2 / T OX I C ON
L E L / C U R R E N T ON
Ou t p u t Z e r o
Ou t p u t S p a n
R e a l T i me C l o c k
Mo d e l S T - 4 8
B a c k L i g h t ON
>
>
>
E n t e r K e y S e q u e n c e
t o a c c e s s me n u .
* * * *
N E X T k e y t o E x i t .
S e e Ma n u a l / H E L P
PRESS
UP KEY
4-TIMES
HOLD
NEXT KEY
5-SECONDS
Figure 3-1: Transmitter Configuration Menu
3.1.1 Single / Dual Gas Monitor Configuration
SenSmart 2000’s are 2-wire 4-20mA devices and support only one electrochemical sensor.
Addition of the 10-0233 Power Supply board (SenSmart 3000LEL) automatically adds the
catalytic bead sensor input and dual 4-20mA outputs. If both the O2/TOXIC and LEL/Current
menu items are ON, the SenSmart 3000 will function as a dual gas monitor with both sensor
inputs and 4-20mA outputs active. Either input may be turned off for single gas EC or LEL
monitors.
3.1.2 Output Zero / Output Span Trims (Factory Preset, Technicians only!):
The
Output Zero Trim / Output Span Trim
entries are digital to analog (D2A) values that
determine the SenSmart 3000
’s final 4-20mA output. Their purpose is to provide precise
SenSmart 3000 4mA and 20mA outputs. To trim these values, attach a precision milliamp meter
to the SenSmart 3000 4-20mA output being used. Enter the correct OUTPUT ZERO TRIM menu
shown in Figure 3-2. Use the UP/DOWN keys to trim the milliamp value to 4.00mA. Next, enter
the correct OUTPUT SPAN TRIM menu and use the UP/DOWN keys to trim the milliamp value to
20.00mA. Press the NEXT key to exit this menu. The SenSmart 3000 stores these new D2A
values and uses them as the 0 & 100% of full-scale endpoints.
WARNING:
Target gas monitoring and alarm processing are halted during these adjustments.
Figure 3-2: Output ZERO / SPAN Trim Menus
3.1.3 Model Name
When power is applied to the SenSmart 3000 it will briefly show a 10 digit ASCII model name or
company name as it starts up. The name can be edited in the Transmitter Configuration menu by
editing the
Model
field.
3.1.4 Real Time Clock
Adjust the date and time here for use in EVENT LOGGING. This is a factory setting but may
need to be adjusted for the end users location.
3.1.5 Backlight
During high power mode this menu allows the user to turn the backlight off. There are three
settings ON, OFF and TIMED. During TIMED mode the backlight will turn on when a key is hit,