Vaisala CT25K User Manual

Ceilometer CT25K
User’s Guide CT25K-U059en-2.1
46
where
Enq is character ENQUIRE = ASCII 05H = control-E
CT is fixed ceilometer identifier
id is identification character, 7-bit printable ASCII character.
No is optional message identifier 1, 2, 3, 6, 7, S
↵ ENTER (Carriage Return) + Line Feed
Polling command examples :
< Enq > CT11<Enter> Message 1 from ceilometer nr.1
< Enq > CT12<Enter> Message 2 from ceilometer nr.1
< Enq > CT1S<Enter> Status message from ceilometer nr.1
NOTE
If the id character in a polling string is replaced with a
blank space, all ceilometers on the line will respond.
Accordingly, if No is a blank space, CT25K sends the
default message.
4.6 Prevailing parameter settings
The prevailing control and parameter settings that chiefly determine operation
can be seen by the following GET commands. Shown parameter values are
equal to standard factory settings but may vary depending on installation in
question. Operator input is marked in CAPITAL (Times) letters after the
command prompt CEILO> and the Ceilometer response under the operator
input as COURIER font.
In case you want to change parameter values see paragraph 3.4 for settings of
user programmable parameters.
CEILO>GET ALGORITHM
NOISE SCALE: 1.7
MINIMUM SUM: 30
MINIMUM EXTCO: 6.0
CEILO>GET DATA_AQC
AUTOADJUSTMENTS: ON
DATA-ACQ. INTERVAL: 15 SEC.
RECEIVER
GAIN: H
*
BANDWIDTH: N
SAMPLING RATE: 10 MHz
TRANSMITTER
LENGTH OF PULSE: L
*
POWER OF PULSE: 188 *
QUANTITY OF PULSES: 64K
COMPENSATION
COARSE COMPENSATION: 12
*
FINE COMPENSATION: 109 *

Vaisala CT25K Specifications

General

Brand	Vaisala
Model	CT25K
Category	Measuring Instruments
Language	English