Teledyne 450H 2.0OPERATION, 2.1Key features, 2.1.1 O3 readout, Concentration Alarms

Models: 450H

1 49
Download 49 pages 55.18 Kb
Page 27
Image 27
2.0OPERATION

2.0OPERATION

2.1Key features

The important features of the Teledyne API Model 450H Ozone Monitor are listed below.

2.1.1 O3 readout

The Teledyne API Model 450H O3 Monitor constantly displays the current ozone reading (in units selected) in the upper right hand corner of the alphanumeric display.

2.1.2 Concentration Alarms

The Teledyne API O3 Monitor provides two concentration alarms, HI and HI-HI. The concentrations corresponding to each alarm levels can easily be set using the front panel interface. Two form C relays for the two alarm level are provided on the rear panel. In addition, the alarms can operate in either latching or non-latching modes.

2.1.3 O3 analog output

The M450H provides an analog output of the current ozone reading on the rear panel (see Figure 1.2). The output can be configured for 0-100mV, 0-1V, 0-5V, 0-10V. Isolated 4- 20mA or 2-20mA current output is available as an option. The voltage outputs are bi- polar and also provide for 20% over-range.

2.1.4 E2 ROM backup of software configuration

The Teledyne API O3 Monitor has few DIP switches or jumpers that need to be set by the operator. Configuration of the Monitor is done under software control and the configuration options are stored in electrically erasable (E2) ROM. Thus, configuration options are saved even when the Monitor is powered off.

There is one exception to this. The analog output voltage range is set by DIP Switches on the A/D-I/O board as shown in Section 5.2.

2.1.5 RS-232 interface

The Teledyne API O3 Monitor features an RS-232 interface which can output the instantaneous and/or average O3 data to another computer. It can also be used as a command and status channel to allow a computer to control the Monitor.

For more details on the use of the RS232 interface, please contact Teledyne API and request document number 01350.

P/N 02826B1 Teledyne API Model 450H O3 Monitor Instruction Manual - Page 27

Page 27
Image 27
Teledyne 450H 2.0OPERATION, 2.1Key features, 2.1.1 O3 readout, Concentration Alarms, 2.1.3 O3 analog output