Campbell-scientific CS135 Lidar Ceilometer Bedienungsanleitung PDF herunterladen (Seite 61)

User Guide

If detection status is 4 h1 =Vertical visibility as calculated

If detection status is 0 or 5 h1 =

"/////"

h2 (5 characters) = 2nd Height

If detection status is 2 or 3 h2 = Second highest cloud base reported

If detection status is 4 h2 =

Height of highest signal detected

If detection status is 0, 1 or 5 h2 =

"/////"

h3 (5 characters) = 3rd Height

If detection status is 3 h3 = Highest cloud base reported

If detection status is 0, 1, 2, 4 or 5 h3 =

"/////"

flags (8 characters) = Alarm or warning information 4-byte hex coded

Description of the most significant alarm word (left side, bits going left to right). Each alarm

word is a hexadecimal sum of all the error bits.

Bit Description

8000 XXXX Transmitter shut-off

4000 XXXX Transmitter failure

2000 XXXX Receiver failure

1000 XXXX DSP, voltage or memory failure

0800 XXXX Reserved for future use

0400 XXXX Reserved for future use

0200 XXXX Reserved for future use

0100 XXXX Reserved for future use

0080 XXXX Window contaminated

0040 XXXX Battery low

0020 XXXX Transmitter expire warning

0010 XXXX Heater or humidity sensor failure

0008 XXXX High radiance warning, also XXXX 0004

0004 XXXX DSP, receiver, or laser monitor failure warning

0002 XXXX Relative humidity > 85 %

0001 XXXX Light path obstruction, receiver saturation or receiver failure

Description of the second alarm word (bits going left to right)

Bit Description

XXXX 8000 Blower failure

XXXX 4000 Reserved for future use

XXXX 2000 Reserved for future use

XXXX 1000 Reserved for future use

XXXX 0800 Blower on

XXXX 0400 Blower heater on

XXXX 0200 Internal heater on

XXXX 0100 Units metres if on, feet if off.

XXXX 0080 Polling mode on

XXXX 0040 Working from battery

XXXX 0020 Always 0

XXXX 0010 Always 0

XXXX 0008 Tilt beyond limit set by user, default 45 degrees

XXXX 0004 High radiance warning, also 0008 XXXX

XXXX 0002 Reserved for future use

XXXX 0001 Reserved for future use

CR LF = Carriage Return + Line Feed

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