Campbell-scientific EC150 CO2 and H2O Open-Path Gas Analyzer and EC100 Uživatelský manuál stáhnout pdf (Strana 51)

Appendix A. EC150 Settings

The Unprompted Output setting is stored in non-volatile memory of the EC100

electronics.

A.2.5 RS-485 Baud Rate

If the unprompted output mode is set to RS-485, the RS-485 Baud Rate

parameter determines the baud rate. Otherwise this setting is not used. The

RS-485 baud rate defaults to 115200 bps, although the user may enter another

value.

The RS-485 Baud Rate setting is stored in non-volatile memory of the EC100

electronics.

A.2.6 Analog Output

The EC100 has two analog outputs for CO

and H

O densities (see Appendix

C.2, Analog Outputs). These outputs may be enabled or disabled with this

setting. The default is for analog output to be disabled.

The Analog Output setting is stored in non-volatile memory of the EC100

electronics.

A.2.7 ECMon Update Rate

The ECMon Update Rate setting determines the rate at which data are sent

over the USB connection to the PC while running ECMon. The default setting

of 10 Hz should be adequate in most situations.

The ECMon Update Rate setting is stored in non-volatile memory of the

EC100 electronics.

A.2.8 Temperature Sensor

The Temperature Sensor setting configures the EC100 electronics to work

with either an EC150 open-path gas analyzer or an EC155 closed-path gas

analyzer. The EC150 measures ambient air temperature using a thermistor

probe mounted in the solar radiation shield (see Section 6.3.3, Connect the

EC150 Temperature Probe).

With the Auto-Select default setting, the EC100 will automatically detect that

an EC150 is connected to the electronics and will report ambient air

temperature measurements from the thermistor probe.

The EC150 temperature sensor is measured at 1Hz, and is not synchronized to

the CO

O measurements.

To diagnose problems with the temperature measurement, a fixed temperature

value may be used, or the temperature sensor may be selected manually.

The Temperature Sensor setting is stored in the non-volatile memory of the

EC150 head.

A.2.9 Fixed Temperature Value

If the Temperature Sensor setting is None, the EC150 will use the value of the

Fixed Temperature Value setting for the sample temperature. This mode is

intended for troubleshooting only. In normal operation, the Temperature

Sensor is set to Auto-Select, and this setting is not used.

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