Vaisala CARBOCAP GMP231, Руководство пользователя, Страница: 55 / 92

• Errors prevent CO
2
measurement and cause the analog outputs to be set to the error
state. Depending on the problem, errors may resolve themselves. For example, sensor
heating eventually dries out condensation on the optical surfaces.
• Warnings do not prevent normal operation but may indicate possible problems.
• Status indicates a known state of the unit, such as the CO
2
measurement standby mode.
There are several possible internal error statuses that you cannot do much about.
After using the instructions in the following table and in
Problem situations
(page 81) , try to power cycle the probe and see if the error stays on.
If your unit has persistent errors that you cannot resolve yourself, contact Vaisala.
Table 49 Status word content
Bit# Type Meaning Recommended action
0 Critical Error Program memory corrupted (CRC error). Fatal error, contact Vaisala.
1 Critical Error Parameter memory corrupted
(CRC error). Fatal error, contact Vaisala.
2 Reserved
3 Reserved
4 Error Low supply voltage error. Check supply voltage.
5 Error Low internal 30 V voltage.
6 Error Low input signal. Can be caused by dirt
or condensation on the optical surfaces. Wait to see if condensation is
removed by heat.
For cleaning instructions, see
Cleaning (page 69) .
7 Error Low internal 8 V voltage.
8 Error Signal dynamic range too high.
9 Error Pressure sensor communication.
10 Error Pressure sensor out of range.
11 Error Sensor temperature too high for
operation. Wait for sensor to cool down.
12 Error CO
2
concentration too high to measure. Wait for CO
2
concentration to
fall into the measurable range.
13 Error Sensor heater resistance out of range.
14 Error IR source temperature error too high.
15 Reserved
16 Error Internal 2.5 V voltage out of range.
17 Error Internal 1.7 V voltage out of range.
Chapter 5 – I2C interface
53