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TELEDYNE INSTRUMENTS
460L Instruction Manual Getting Started
05228 Rev B 17
DCN 5164 PRINTED DOCUMENTS ARE UNCONTROLLED
1
Located just below each relay connector (see Figure 3-10)
2
N.O. = Normally Open operation.
N.C. = Normally Closed operation.
3.6. Initial Startup
Perform the following steps when initially starting up the 460L or when bringing the monitor back
into service it has been shut down for repair or maintenance.
1. Turn on power to the monitor.
The display will briefly display the “API” logo followed by the software version.
The display will then begin showing ozone concentration.
2. Establish a flow of ozone to the monitor.
Flow rate through the monitor should be between 0.5 – 2.0 LPM (Liters per minute.)
Adjust as needed using the needle valve of the flow meter on the front panel
(see Figure 3-1).
3. Let the monitor warm up for a minimum of 5 minutes.
4. Check Status LED’s on front panel;
Sensor OK LED should be ON.
All other LED’s should be OFF.
If the Status LED’s are not in this state, refer to Chapter 11 for troubleshooting
information.
5. Observe the monitor for several more minutes at zero to ensure that it is stable.
THE MONITOR IS NOW READY TO MEASURE OZONE.
3.7. Setting up the Serial Communications Port
The 460L’s bi-directional RS-232/485 Serial Port Interface allows the user to communicate with
the monitor via a computer over that computer’s serial communications port (COM port). A
terminal emulation program such as HyperTerminal is required to be installed and running on the
host computer.
The following three pins are provided on the I/O connector for serial communications (see Figure
3-12).
Table 3-
5 Serial I/O Port C
onnection
LABEL DESCRIPTION
SERIAL TX Serial Transmit (RS-485 – A)
SERIAL RX Serial Receive (RS-485 – B)
SERIAL GND Serial Ground (RS-232 Only)