HACH LINK2SC Controlador universal User Manual

HACH LINK2SC Controlador universal User Manual

Specifications

Specifications are subject to change without notice.

Product overview

The LINK2SC software function enables optimum interaction of the process measuring equipment and the photometer in the laboratory. It enables direct measurement correction of the online sc probe via a photometer operating under laboratory conditions (refer to Introduction to matrix correction on page 4). LINK2SC also enables laboratory control measurement. Measurement data is transferred from the sc probe to the photometer, where it is then archived together with the photometric reference data.
One or more online measurement values are used to create a job on the sc controller; this job is transferred to the photometer via a local network connection or via SD memory card and USB adapter. A job is an XML file containing measurement values and additional controller and probe information.
The water probe drawn at the same time as this is analyzed in the laboratory in line with the same parameters.
In the photometer, the photometric measured value is assigned to the probe value in the job. If the job is then sent back to the sc controller, the probe is corrected automatically. Data transfer is either via SD memory card or local network (LAN)1
Figure 1 Communication between the process measurement equipment and the photometer
in the laboratory

Introduction to matrix correction
There are various options available for sc probes to correct the probe value by means of laboratory values (as a reference value).
This example uses the AN-ISE sc probe, for which the sample laboratory value can be entered as either nitrate nitrogen (NO3-N) or ammonium nitrogen (NH4-N). This laboratory value corrects the value measured by the probe. For precise information, please refer to the calibration/matrix  correction chapter of the AN-ISE sc user manual.
LINK2SC supports matrix correction 1 and 2 and makes an independent decision as to which of the two correction types is to be used for the application. The comparison measurements should be  taken on different days and at different times in order to record a maximum number of changes in concentration. The following table describes the two correction types in more detail.

Table 1 AN-ISE sc correction types (extract from user manual)

the recommended first step. MATRIX1 performs a single-point matrix correction for ammonium and/or nitrate; this is done either with or without compensation electrode correction (potassium and/or chloride), though “without” is sufficient in most cases. Compensation electrode correction is only necessary if a higher level of accuracy is required. With a MATRIX1, a sample must be taken when the correction is triggered and analyzed in the laboratory. MATRIX1 is activated when the laboratory value is entered.
NEW MEASUREMENT| MATRIX2| MATRIX2 correction is recommended for dynamic processes with a large fluctuation of nitrate/ammonium over at least half a decade2. With a MATRIX2, a sample must be taken for both points (a high and a low concentration) when the correction is triggered and analyzed in the laboratory. MATRIX2 is activated when the laboratory value is entered.

Installation

LAN
Configure the photometer IP address on the sc1000 controller3 . Also observe the instructions in the user manuals for the photometer and the sc controller.

SD memory card
The sc controller has an SD memory card slot.
The SD memory card is used to:

• Save log files from all instruments.
• Update the sc controller software.
• Restore settings without network access.
• Perform the LINK2SC process.

The SD memory card must be inserted in a USB adapter in order to connect to the photometer.

Operation

Work sequence: CREATE JOB

1.  Create the job file on the sc controller (refer to Work sequence: sc controller on page 7).
   • Select LINK2SC from the sc controller menu.
   • Select CREATE JOB from the LINK2SC menu.
   • Select the SENSOR NAME from the create job menu.
   1. Select the PARAMETER of the job file from the sensor menu.
   •  As soon as the parameter has been selected, take a comparison sample for the laboratory measurement.
   • Use JOB->LAB to transfer the job file from the job status menu to the laboratory. (SD memory card must be inserted in the sc controller if this is being used.)
2.  Examples of half a decade: The concentrations of nitrate nitrogen shift between 1 and 5 mg/L NO3-N and between 5 and 25 mg/L NO3-N. (Conc2 = (Conc1 × 10)/2)
3. Only valid for sc1000 controllers.

Process the job with the photometer (refer to Work sequence: photometer on page 8). (If the SD memory card is being used, it must be connected to the photometer via a USB adapter.)
a. Use the LINK2SC button on the toolbar to open the job list. Pending jobs are identified with numbers in a yellow circle.
b. Select a job.
c. Select the parameter to be processed.
d. Analyze the comparison sample.
e. Assign the result to the job, if applicable.
f. Use SEND to adjust. (If the SD me

LAN4 : When the default setting is active, the probe is automatically corrected with the laboratory measurement data once the job has been returned.
Note : LINK2SC>CONFIGURE>AUTO JOB can be used to deactivate automatic correction. The probe must then be corrected manually as per transfer via SD memory card. or
SD memory card: The job must then be activated manually on the controller. Proceed as follows:
a. Insert the SD memory card in the sc controller.
b. Select LINK2SC from the sc controller menu.
c. Select JOBS FROM CARD from the LINK2SC menu. (Jobs are loaded into the sc controller.)
d. Select JOB LIST from the LINK2SC menu.
e. Select the corresponding job from the list.
f. Select ACTIVATE JOB. (The probe is corrected.)

Work sequence: NEW MEASUREMENT

1. In order for LINK2SC to be able to select the best correction type for the application in question (refer to Introduction to matrix correction on page 4), each further sensor correction must be performed via “NEW MEASUREMENT” and not via “CREATE JOB”.
   •  Select LINK2SC from the sc controller menu.
   • Select JOB LIST from the LINK2SC menu.
   • Select the corresponding job from the list.
   • Select NEW MEASUREMENT.
   • Select the PARAMETER for the new measurement.
   • Take a comparison sample for the laboratory measurement.
   • Use JOB->LAB to transfer the job file from the job status menu to the laboratory. (SD memory card must be inserted in the sc controller if this is being used.)
2. Process the job with the photometer (refer to Work sequence: CREATE JOB on page 5 step 2).
3.  LAN5 : The probe is automatically corrected with the laboratory measurement data once the job has been returned. or SD memory card: The job must then be activated manually on the controller (refer to Work sequence: CREATE JOB on page 5 step 3)

Work sequence: sc controller
Menu structure based on sc1000 controller; the menu structure for the sc200 may differ slightly.

MENU

SENSOR STATUS| Refer to sc controller user manual.
SENSOR SETUP| Refer to sc controller user manual.
SYSTEM SETUP| Refer to sc controller user manual.
SERVICE| Refer to sc controller user manual.
LINK2SC| Select to call up the LINK2SC menu.
CREATE JOB| Create a new job.
SENSOR NAME (in this case: ANISE SC)| Select the required probe (e.g. AN-ISE SC).
Submenu: parameter selection

Parameter 1| Here: NH4-N + NO3-N
Parameter 2| Here: NH4-N
Parameter 3| Here: NO3-N
Parameter 4| Here: NH4-N + K
Parameter 5| Here: NO3-N + Cl
Parameter 6| Here: NH4-N + K + NO3-N + Cl
Once the parameter is selected, a request for a sample is generated

LINK2SC| Job displayed in job status menu with:
SAMPLE NUMBER| Sample number
JOB->LAB| Select and confirm
Confirmation is displayed once the job has been sent.

JOBS FROM CARD| Only active when processed jobs from the laboratory are present on the SD memory card.
JOB LIST| Job list containing all jobs.
JOB 1| Job with number and date.
ANISE SC| Probe information
JOB INFORMATION| Job number
NEW MEASUREMENT| Trigger new measurement for MATRIX2 correction.
Submenu: parameter selection

JOB->LAB| Send job to laboratory.
ACTIVATE JOB| Activate job entered via SD memory card.
ERASE JOB| Delete the job from the list.
JOB N| Job with number and date.
CONFIGURE| LINK2SC configuration
Submenu: parameter selection

TRANSMISSION6| Transfer type selection: SD memory card or network.
IP ADDRESS| IP address or network name for the instrument to which the job is to be sent.
JOB ID MIN| Lower limit for job number range.
JOB ID MAX| Upper limit for job number range.
AUTO JOB| Select whether a job returned by the photometer is activated automatically.
SENSOR NAME (in this case: AN-ISE)| If this is selected, the job is activated automatically. Uncheck to deactivate.
PROGNOSYS| Refer to sc controller user manual.

Work sequence: photometer

1. Once the job has been transferred via LAN or SD memory card to the photometer, press the LINK2SC button on the toolbar. A LINK2SC job list is displayed.

2. Select the job to be processed and use SELECT to open it.
   The job details are then displayed: job ID, date, time, parameter, sensor measurement value and proposed test.

3. Use one of the instructions that follow to select the parameter and examine the test.

   • To examine with a recommended barcode test, insert the coded vial.
   • To examine with a recommended non-barcode test, push MEASURE and start the measurement.
   • To examine with a non-recommended test, select OPTION>SELECT PROGRAM. Select a program and push MEASURE to start the measurement.

4. Select ASSIGN RESULT TO JOB, if applicable.

5. Use the options in JOB DETAILS to edit and delete the measurement result or do the result assignment from the data log.

6. Select SEND to send a single parameter to the controller.

7. Select JOB LIST to show the list.

8. Select SEND to send a completed job to the controller.

   • a. LAN7 : The probe is automatically corrected with the laboratory measurement data once the job has been returned.
     Note : Once the correction has been implemented successfully, confirmation (job with green tick) is sent back to the photometer, where it can be archived. If an implausible measurement value means that the correction cannot be made, the job is returned with a red cross.
     Note : If the network connection is interrupted, an error message is output. The job can also be saved on a connected SD memory card and transferred to the controller that way.

   • SD memory card: If the SD memory card is being used, it must be connected to the photometer via a USB adapter. The job must then be manually activated on the controller. The JOB LIST button goes back to the list to access the Main Menu.

9. Use OPTIONS to access a submenu for job management. HISTORY accesses completed archived jobs; DELETE JOB moves jobs to the archive.

References

• Geräte und Reagenzien für die Wasserqualitätsanalyse | Hach
• Hach | Hach
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