Service manual

MDS E-SCAN MPR E-SCAN OPERATION

2.2.4 Overview of Menu Options

CALIB (Password required) option allows the operator to enter calibration set points. This

consists of calibration limits, measurement, temperature compensation, and analog zero

adjustment. Since a complete calibration is performed in advance by EMC, it would be a rare

condition for the operator to access calibration measurement and temperature compensation.

However, system limits may be changed more frequently if the operator chooses to change the

alarm limits, analog output limits, alarm delays, purge cycle information, or other limits. An

analog zero adjustment is provided to “zero in” the instrument to match lab samples or reach a

target measurement if needed.

CONFIG options are selected in advance by EMC and would not normally be changed by the

operator. Thus, access to system configurations is gained only by entering a correct password,

except for selection of unit # 1 or 2.

PRINT option allows the operator to print all system calibration and configuration settings.

DIAG option provides the operator with data that can be used to test and troubleshoot system

problems. The operator can display all voltages from the sensing head, test relays on the

interface board, output min., mid., and max., analog data to test and calibrate analog output, and

enter system time and date in cases of battery failure.

PURGE option allows the operator to initiate a purge from normal mode in addition to the

automatic purge cycle timing setup in calibration limits. The purge function cleans the sensing

head prism and since configured for intelligent cleaning will automatically start another purge

cycle if the previous purge was unsuccessful. Purge can be aborted using the Front Panel ESC

button.

Analg. 0 option allows the operator direct access to the calibration menu Analg. 0 section. See

section 2.3 for more details concerning this type of calibration.