Hanna Instruments HI 98150N - Manual (Page 29)

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CHR xx Change the instrument range according with the parameter
value (xx):
• xx=01 pH range/0.01 resolution
• xx=02 pH range/0.1 resolution
• xx=03 mV range
• xx=04 Relative mV range
The instrument will answer for these commands with:
>
where: is 02 ASCII code character (start of text)
is 03 ASCII code character (end of text)
:
is 06 ASCII code character (recognized command)
is 21 ASCII code character (unrecognized command)
is 24 ASCII code character (corrupted command)
COMMANDS REQUIRING AN ANSWER
The instrument will answer for these commands with:
where the checksum is the bytes sum of the answer string sent as 2 ASCII
characters.
All the answer messages are with ASCII characters.
RAS
Causes the instrument to send a complete set of readings in
according with the current range:
• pH and temperature reading ( HI 98140), and mV
reading ( HI 98150 & HI 98160) on pH range.
• Rel mV, absolute mV and temperature reading on
Rel mV range ( HI 98150 & HI 98160).
The answer string contains:
• Meter mode (2 chars):
• 01 - pH range (0.01 resolution)
• 02 - pH range (0.1 resolution)
• 03 - mV range
• 04 - Rel mV range
• Meter status (2 chars of status byte): represents a 8
bit hexadecimal encoding.
• 0x10 - temperature probe is connected
• 0x01 - new GLP data available
• 0x02 - new SETUP parameter