Foss Infratec 1241 Service Manual

Infratec™ 1241 Grain Analyzer
4:14 Service Manual 1001 5015 / Rev. 4
Checking hardware
The check of communication and hardware is separated.
Voltage check
After checking the PSU hardware, a voltage check is performed.
This check is using the same accuracy as the voltage display in the service menu 5.7.
Monochromator
Grating system
The grating system functionality test checks the functionality of the grating shaft en-
coder. The test results report the maximum (positive) and the minimum (negative)
encoder unlinearity when the grating makes a complete scan, and the total difference
(i.e. max-min). The number of encoder pulses to complete a single revolution (for
-
ward and reverse) of the grating is also recorded, along with the time to complete the
scan. The following table lists the names, typical values and limits for the above pa
-
rameters.
Checksum test of monochromator EEPROM
This test validates O- and P-constants, serial number of the Monochromator and peak
value for internal BG20 filter. If the checksum does not match what is stored in the
EEPROM, an error occur and the instrument will be unable to analyse.
Line description including typical value Units
Min.
limit
Max.
limit
SELFTEST/12411615/VoltageTest/+5=Number,4.96 Volt 4.5 5.5
SELFTEST/12411615/VoltageTest/+5.5=Number,5.58 Volt 5.0 6.0
SELFTEST/12411615/VoltageTest/+12=Number,11.95 Volt 11.2 12.8
SELFTEST/12411615/VoltageTest/-12=Number,-11.84 Volt -12.8 -11.2
SELFTEST/12411615/VoltageTest/+10.5=Number,3.11 Volt 10.0 11.0
SELFTEST/12411615/VoltageTest/Contrast=Number,-30.75 Volt -25 -15
SELFTEST/12411615/VoltageTest/Input=Number,29,87 Volt 20 45
SELFTEST/12411615/VoltageTest/Passed=Bool,True bool
Line description including typical value Units
Min.
limit
Max.
limit
SelfTest/1241xxxx/Monoch. /SerialNumber=String, T9010017
SelfTest/1241xxxx/Monoch. /Min=Number, -1.2 % >-22%
SelfTest/1241xxxx/Monoch. /Max=Number, 1.2 % <+22%
SelfTest/1241xxxx/Monoch. /Diff=Number, 2.4 % 50%
SelfTest/1241xxxx/Monoch. /PulseCount=Number, 2880 real 2800 3400
SelfTest/1241xxxx/Monoch. /CycleTime=Number, 2.605 S 2.000 3.000
Line description including typical value Units
Min.
limit
Max.
limit
SelfTest/1241xxxx/Monoch. /Checksum=Bool, True bool

Foss Infratec 1241 Specifications

General

Brand	Foss
Model	Infratec 1241
Category	Measuring Instruments
Language	English