ASCII CSV data message - AQT530

AQT530 Configuration Guide
Document code
M212572EN
Revision
E
Language
English
Product
AQT530
Document type
User guide

The ASCII CSV data message is used for outputting AQT530 measurement data.

<Timestamp>,<Conditions>,<Gases>,<Particles>,<Config>,<Uptime>
Table 1. ASCII CSV message data fields
Field Description Example
Timestamp UTC date and time in ISO 8601 format 2020-12-11T03:00:41
Conditions

Environment conditions separated by commas (included always):

  • Air temperature (°C or °F, depending on the configuration 1)
  • Air humidity (%RH)
  • Air pressure (hPa)
 7.3,92.3,990.1
Gases

Gas measurement results in parts per million (ppm) separated by commas

Possible gases, depending on gas cell setup:

  • NO2, SO2, CO, H2S, O3, NO

Max. number of gas cells at a time: 4

 0.009,0.101,0.013,0.03
Particles 2

Particle measurement results in µg/m3, separated by a comma:

  • PM1, PM2.5, PM10

The particle measurement results are included when an LPC device is installed and enabled

 0.1,1.1,1.9
Config

Device setup represented with symbols separated by colon (:):

  • T = Air temperature (included always)
  • H = Air humidity (included always)
  • P = Air pressure (included always)
  • NO2, SO2, CO, H2S, O3, NO (included according to gas cell setup)
  • PM1, PM2.5, PM10 (included when LPC is installed and enabled)

Order matches order of results in fields Conditions, Gases, and Particles

 T:H:P:NO2:CO:O3:NO:PM1:PM2.5:PM10
Uptime Time from last reboot in seconds 2735641

Example of CSV ASCII data message with 4 gas sensors and LPC

2022-01-22T07:37:38,22.3,24.1,999.3,0.182,2.920,0.575,0.140,0.1,1.1,1.9,T:H:P:NO2:CO:O3:NO:PM1:PM2.5:PM10,3185
2022-01-22T07:38:38,22.3,24.1,999.3,0.170,2.921,0.551,0.131,0.1,1.1,1.9,T:H:P:NO2:CO:O3:NO:PM1:PM2.5:PM10,3245
2022-01-22T07:39:38,22.3,24.1,999.3,0.159,2.919,0.527,0.123,0.1,1.1,1.9,T:H:P:NO2:CO:O3:NO:PM1:PM2.5:PM10,3305

Example of CSV ASCII data message with 4 gas sensors, without LPC

2022-01-22T08:07:38,22.3,24.1,999.4,0.108,2.926,0.416,0.084,T:H:P:NO2:CO:O3:NO,4983
2022-01-22T08:08:38,22.3,24.0,999.4,0.101,2.927,0.402,0.079,T:H:P:NO2:CO:O3:NO,5043
2022-01-22T08:09:38,22.3,24.0,999.4,0.095,2.927,0.389,0.074,T:H:P:NO2:CO:O3:NO,5103

Example of CSV ASCII data message with LPC only

2022-01-22T07:40:38,22.4,24.1,999.3,0.1,1.1,1.9,T:H:P:PM1:PM2.5:PM10,3364
2022-01-22T07:41:38,22.4,24.1,999.3,0.1,1.1,1.9,T:H:P:PM1:PM2.5:PM10,3424
2022-01-22T07:42:38,22.4,24.1,999.3,0.1,1.1,1.9,T:H:P:PM1:PM2.5:PM10,3484
The actual message does not contain line feeds.
1 The temperature unit can be configured with CLI using tempunit parameter. For example, setting Celsius units with set tempunit=0.
2 When PM concentrations reach the upper measurement limit of the laser particle counter (LPC) due to some exceptional event, the PM readings may temporarily be negative and the LPC reboots itself. For example, the unloading of sand in a nearby construction site and the resulting sand dust may cause the particle concentration to be temporarily drastically different from normal. Because of this AQT530 initially shows very high PM readings and then negative readings. AQT530 typically recovers from these exceptional events back to normal operation.