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ALTANA Haze-Gard Plus Operating Instructions User Manual

Page 37

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00h = German

01h = English

02h = French

03h = Italian

04h = Spanish

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00h = T

01h = H

02h = C

03h = T&H

04h = T&C

05h = H&C

06h = T&H&C

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readings (byte 3)

00h = Only first reading is valid

01h = First and second readings

are valid

02h = All three readings are valid

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(byte 4)

00h = Sample

01h = Statistics

02h = Results

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00h = No

01h = Yes

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00h = No

01h = Yes

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00h = Off

01h = On

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The following conventions apply for
operating the instrument controls
from the PC:

00h = Statistics

01h = Delete last

02h = Results

03h = Delete all

04h = Operate

05h = Setup

06h = Reference

08h = Transmittance

09h = Haze

0Ah = Clarity

The instrument acknowledges each
control command with 2 characters
(bytes).
First byte: control command (echo)
Second byte: "!" (21h)

If the PC sends the instrument a 4
(= operate) while the instrument is
in any measuring mode, a meas-
urement will be started. When the
first measurement reading is
available, the instrument sends a
66h (ASCII code for lower-case ‘f’)
to the PC (readout). Then the
measured values are transmitted.
Data is always transmitted for all
three parameters. The status string
contains the information about the
validity and sequence of readings
(bytes 2 and 3).

For the measured value, four ASCII
characters followed by a 0 byte are
transmitted.

Example: 39h+35h+2Ch+34h+00h
is equivalent to a measured value of
95.4.