Section 10
Standby
and On-Demand Modes
78
Thermo Scientific Orion
2230 Silica Analyzer
STANDARD:
System uses only the standard for flushing the cell in stand-by.
Factory Setup Recommendations When
Operating In
“ON-DEMAND” Mode
If the system is to be used “ON-DEMAND”, it is highly recommended to keep it powered and to
keep sample flowing to eliminate algae growth in the lines over extended time. It is best to
control the analyzer operation either directly via the keypad (RUN / STOP) keys or using a
remote ON/OFF external control switch for controlling the analyzer.
The following describes how to setup the analyzer.
1 - Select the MANUAL mode: the analyzer will switch to stand-by after one hour of inactivity
(after receiving the STOP command).
MENU
➔
SETUP
➔
+ (pg 2)
➔
ANALYSIS PARAMETERS
➔
MODE
Select MANUAL mode.
2 - Program external control input 6:
MENU
➔
SETUP
➔
INPUTS
➔
EXTERNAL INPUTS
➔
INPUT 6
Press the down key to select ACTION: RUN / STOP
Refer to Manual
Inputs Signal Connections Section
for additional wiring details.
By using the ON/OFF external remote control switch the operator can turn ON analysis (RUN)
when switch is flipped ON (closed contact) and stop analysis (STOP) with switch in the OFF
position. When stopped, the unit will switch automatically to stand-by after one hour. In stand-by
mode, the system will execute the necessary house-keeping to maintain a ready state.
11
15
16
12
15
16
12
11
5 - 24VDC
24VDC
GND
RETURN
RETURN
INP6
INP6
USING INTERNAL 24VDC
USING EXTERNAL SUPPLY
