Hanna-instruments HI 2216 Bedienungsanleitung PDF herunterladen (Seite 36)

CHR xx Change the instrument range according with the param-

eter value (xx):

• xx=00 pH range/0.001 resolution

• xx=01 pH range/0.01 resolution

• xx=02 pH range/0.1 resolution

• xx=03 mV range

• xx=04 Relative mV range

• xx=05 ISE range

The instrument will answer for these commands with:

<STX> <answer

<ETX>

where: <STX> is 02 ASCII code character (start of text)

<ETX> is 03 ASCII code character (end of text)

<answer>:

<ACK> is 06 ASCII code character (recognized command)

<NAK> is 21 ASCII code character (unrecognized command)

<CAN> 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, temperature and mV reading on pH range.

• Rel mV, absolute mV and temperature reading on

Relative mV range.

• ISE, mV and temperature reading on ISE range.

The answer string contains:

• Meter mode (2 chars):

• 00 - pH range (0.001 resolution)

• 01 - pH range (0.01 resolution)

• 02 - pH range (0.1 resolution)

• 03 - mV range

• 04 - Rel mV range

• 05 - ISE range

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Hanna-instruments HI 2216 Bedienungsanleitung Seite 36