Hanna-instruments HI 121 Manual do Utilizador descarregar pdf (Página 46)

SET Is equivalent to pressing SET

PRT Is equivalent to pressing PRINT (HI 123 only)

CLR Is equivalent to pressing CLR

OFF Is equivalent to pressing OFF

AHD Is equivalent to pressing AutoHOLD

CHR xx Change the instrument range according with the parameter

value (xx):

• xx=00 pH range/0.001 resolution, pH channel

• xx=01 pH range/0.01 resolution, pH channel

• xx=03 mV range, pH channel

• xx=04 Relative mV range, pH channel

• xx=13 mV range, ISE channel

• xx=14 Relative mV range, ISE channel

• xx=15 ISE range, ISE channel

The meter will answer for these commands with:

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

RAS Causes the instrument to send a complete set of readings

in according with the current range:

• pH, mV and temperature reading on pH range.

• mV and temperature reading on mV range.

• Rel mV, absolute mV and temperature reading on

Rel mV range.

Note: The temperature is sent with two decimals and in Celsius degrees,

even if the set temperature unit was Fahrenheit degrees.

DA? Requests the date.

TI? Requests the time.

MDR Requests the instrument model name and firmware code.

GLP Requests the calibration data record.

PAR Requests the setup parameters setting.

NSL Requests the number of logged samples.

?ML Requests the information about AutoLOG.

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Hanna-instruments HI 121 Manual do Utilizador Página 46