Mode Setup Commands; Data Read Commands - Hach ANATEL PAT700 Operator's Manual

PAT700 Total Organic Carbon Analyzer – Installation

Mode setup commands

Command Mode
Self-clean mode
"MC"
Automatic TOC mode
"MD"
Manual TOC mode
"MO"
Conductivity mode
"MP"
Standby mode
"MY"
Offline mode
"MZ"
Master reset
"MR"

Data read commands

Read data
"RD"
The data normally are displayed only in response to the "RD" command. If the "SA" command
is sent, data will be displayed at the end of each measurement. After the analyzer powers up,
it initially responds with zeros in all data fields until the first valid reading is taken. For TOC
data, the timestamp represents the time at which the unit finished sampling and began
oxidation.
The data format can take either of two forms, depending on whether the sensor is in TOC
mode or conductivity mode.
The analyzer produces new data every 15 seconds in conductivity mode or from 1 to 35
minutes in TOC mode. If the "RD command is used for polling, you can distinguish a new
reading by comparing the current timestamp with the previous timestamp.
Example:
Read command:
TOC mode response:
"Date
Resistance
"07/25/2007 20:05:46
0.832
Conductivity mode response:
"Date
"07/25/2007 20:07:36
Anatel
Analyzer activity
Water flows through cell with UV lamp on.
Continuous TOC analyses.
Performs one TOC analysis, then goes to idle mode.
Water flows through cell with continuous conductivity
measurement.
Offline, water flows through cell.
Offline, all valves are shut.
Hardware reset, equivalent to cycling power.
Read-only command produces last data. The format depends
on the current mode.
"RD"
Time Mode State TOC alarm
Temperature Curve type
1 2
25.21 P1
Time Mode State Resistance
7 1
Percentage
Elapsed time"
301 0%
310"
Temperature"
18 24.28"
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Operator Manual