Contact:
(203) 744-5905
Factory
and Field Installation System
Integration Test Procedures
The following procedures are followed in the initial factory testing of the NMR system before shipping to site, and are then repeated upon installation at site. The tests check the basic functionality of the magnet and RF components of the NMR instrument and allow the system to be brought up to the optimum operating conditions for on-line operation
Test Bench
 |
System
under Test, i.e. complete assembly of NEMA enclosed NMR system with the
appropriate ‘Process probe’ installed inside the Magnet and connected to
the sample system pipes. |
|
All
units connected after insuring that all the internal boards (in the PC and
the Shim box) are plugged in well and software is installed properly. |
|
Remote
computer configured to run the NMR software as a client of the NMR system
under test. |
Initial
Steps
|
Check wiring and power - trace wiring per schematics. |
|
Power
up system – electric and air. |
|
Check
power distribution to system – Barber-Coleman temperature control setup
(including alarm relay), LED’s on all the NMR components and fans on all
components. |
|
Check
system safety features – purge system, gas detector (requires butane gas
source), and alarms. |
|
Check
that all system documentation is present and that serial numbers of all
components (NMR and enclosure) are correct. |
|
Attach sample
system (1/4” loop with peristaltic). |
|
Check
A/C and heaters on enclosure. Make sure that the left A/C is configured to
run non-stop. |
|
Allow system to
equilibrate for 24 hours – running ‘Heater
diagnostics’ as system settles. |
|
Determine
that system is stable and ready for steady state operation. |
|
Insert
water into the probe through the sample system pipes. |
System
Software and Configuration
2)
NMR System Computer Settings:
Users
and Password –
Make sure that the same user is logged on the System Computer and the Remote
Computer.
dcomcnfg
setup-
Run dcomcnfg
(Start->run->dcomcnfg)
Find the name
"NMRServer" in the applications' list.
In
the properties menu verify that the Program location is on this computer,
and the identity is set to "Interactive User"
PcAnyWhere
configuration under NT-
Make sure that the Computer is set as Network NetBios host, with the right
Username and Password. Verify that PcAnyWhere is set to run automatically as an
NT Service. Reboot the computer and check if it is running automatically.
NMR
software components
– Run each of the following software and verify that it
functions properly:
|
Shim
Test – Verify that the Shim box is connected to COM5. Run ShimBoxTest read data from all coils, run quick test, accurate test
and address test. |
|
Heater
Test – Verify that the Heater is connected to COM1. Run Heater diagnostic Program and make sure you can read data from the
heater. |
|
Diagnostic
– Run the Diagnostic program
with Magnet test configuration and verify that it is running properly. |
|
Lab
NMR – Run the Lab NMR program
and check the lock, the shimming routines. |
|
Process
NMR – Run the Process NMR
program and verify that the ‘Software plug’
is installed and detected by
the software. |
Serial
COM setting and communication -
Modem
– Connect a phone cable, set pcAnywhere to run temporarily as a modem host,
and dial from another computer. After communication is established, disconnect
and set pcAnywhere back as a network host.
FieldPoint
– Verify that the Power Supply is connected to COM6. Make sure that in the
SampleControl.INI the device is set to FieldPoint. Run LabNMR,
add valves commands to the ‘Event Table’, and make sure that every valve can
be operated from the software.
Modbus
– Verify that the Power Supply is connected to COM7. Make sure in
ProcessNMR.INI that the DCS type is set to Modbus. Run ProcessNMR.
From the Modbus Configuration Dialog Box – Write data to the PLC and read it
back to verify it was written OK.
3)
Remote computer Settings:
Users
and Password -
Make sure that the same user is logged on the System Computer and the Remote
Computer.
dcomcnfg
setup-
Run
dcomcnfg (Start->run->dcomcnfg)
Find
the name "NMRServer" in the Applications' list.
In
the properties menu verify that the Program Location is On this computer, and
the identity is set to "Interactive User"
PcAnyWhere
configuration -
Make sure that the Computer is set as a modem
host, with the right User Name and Password. Verify that PcAnyWhere is set to
run automatically as an NT Service. Reboot the computer and check if it is
running automatically.
NMR
software components
– Run each of the following software and verify that it function properly:
|
Shim
Test – Run ShimBoxTest read
data from all coils, run quick test, accurate test and address test. |
|
Heater
Test – Run Heater diagnostic
Program and make sure you can read data from the heater. |
|
Diagnostic
– Run the Diagnostic program
with Magnet test configuration and verify that it is running properly. |
|
Lab
NMR – Run the Lab NMR program
and check the lock, the shimming routines. |
|
Process
NMR – Run the Process NMR
program and verify that the Software
plug is installed and
detected by the software. |
Serial
COM setting and communication -
Modem
– Connect a phone cable, set PcAnyWhere to run as a modem host, and dial from
another computer
Modbus
– Verify that the Modicon PLC to COM 2. Make sure in ProcessNMR.INI that the
DCS type is set to Modbus. Run ProcessNMR.
From
the Modbus Configuration Dialog Box – Write data to the PLC and read it back
to verify it was written OK.
4)
Shimming the NMR System
Magnet
Resolution Unshimmed:
Disconnect
the DC power to the Shim Box.
Check
the H2O signal of the unshimmed magnet, write down the results in the following
table. Verify that it is less than the tolerance allowed and similar to the
results of the shipment documents.
Test
results:
(H2 O, 2Kpts, 50kHz BW, Process probe with inner tube diameter of 7mm for ‘D’ type magnet and 4mm for ‘C’ type magnet)
Parameter |
Units |
Limits
For ‘D’ Magnet |
Limits
For ‘C’ Magnet |
Result |
Pass
/ Fail |
|
Frequency |
MHz |
58+/-1 |
57.2+/-0.8 |
|
|
|
BW1/2h |
Hz |
<700 |
<700 |
|
|
|
BW1/10h |
Hz |
<2500 |
<2200 |
|
|
5)
Hardware Testing:
On
the NMR computer verify that the file nmr.ini has the shim matrix of the
correct magnet type (ver ‘C’ or ver ‘D’).
On
the NMR computer verify that the file nmr.ini has the correct serial COM
port number for the Shim Box (usually it is com5).
On
the NMR computer run Shim Test
software
Get
in the ‘Dac Map’ menu
Select
all and run ‘Quick Test’ verify that all O.K
Select
all and run ‘Accurate Test’ verify that all O.K
Select
all and run ‘Address Test’ verify that all O.K
Exit
the program
|
Parameter |
Units |
Limits |
Result |
Pass/Fail |
|
Quick
Test |
|
All
O.K. |
|
|
|
Accurate
Test |
|
All
O.K. |
|
|
|
Address
Test |
|
All
O.K. |
|
|
6)
Improving existing Shimming:
On
the remote computer run LabNMR
software
In
the ‘Event Table’ menu load file:
Shim 3.et
In
the ‘ADC’ menu load file: Shim
3.adc
Under
the ‘Automated Analysis’ menu in
the ‘Post Processing Definition’
menu load file: Remove DC.pp
In
the ‘Average’ menu load file: 1
scan.avg
Start
Lock
Wait
till you get the ‘Fine lock 1’ message and verify a good Lock performance
using the tools in ‘Lock
Menu’
Start
acquisition.
In
the ‘Frequency’ menu, change the
frequency shift in such a way that the peak will be about 300 Hz from the
zero frequency.
Stop
acquisition
Get
in the ‘Shim’ menu
In
the ‘Gradients’ menu load the
previous shim gradient from file D:\nmr\200-xxx.grd from the System PC .
In
the ‘Set Methods’ menu choose:
Method
file: d:\nmr\newadv.shm
Criteria: RMS
Start: Advanced 3_1
Stop:
Advanced 4_3
Click
on ‘Start Shimming’ and wait
for the Autoshim routine to finish. Using the ‘Gradients’ menu save all shim value in a file that will indicate
the magnet serial number and the date such as : 200-xxx ‘date’.grd
On
the remote computer run NMR Diagnostic
software
Under
‘File’ menu load Resolution
Test.cfg
Start
acquisition.
After
collecting the 10 successive readings, stop the acquisition.
Analyzing
the Results:
|
Resolution
at half height
- Examine the “1/2 Height” window and right down the results of the mean
value in the following table. Verify that is less then the tolerance allowed
and similar to the results of the shipment documents. |
|
Resolution
at tenth height -
Examine the “1/10 Height” window and right down the results of the mean
value in the following table. Verify that is less then the tolerance allowed
and similar to the results of the shipment documents. |
|
Resolution
at the base
- Examine the “Base Height” window and right down the results of the
mean value in the following table. Verify that is less then the tolerance
allowed and similar to the results of the shipment documents. |
Magnet
Resolution Shimmed Results
(H2 O, 2Kpts, 2kHz SW, Process probe)
|
Parameter |
Units |
Limits
For ‘D’ Magnet |
Limits
For ‘C’ Magnet |
Result |
Pass
/ Fail |
|
BW1/2h
|
Hz |
<7 |
<6 |
|
|
|
BW1/10h
|
Hz |
<30 |
<24 |
|
|
|
BW1/200h
|
Hz |
<150 |
<120 |
|
|
7)
Long Term Inside NEMA Enclosure
Test
Bench:
The
system under test inside the NEMA enclosure (all units connected properly).
An
external container full with water.
A
water pump hooked to the external input and output of the NEMA enclosure.
Remote
computer configured to run the NMR software as a client of the system under
test.
Preparation:
On
the NMR computer run LabNMR software
In
the ‘Event Table’ menu load file:
90 deg.et. After the ‘Reset’ row, add additional row to the event
table that will open valve #1 for 20 second. After that row, add another row
that will close valve #1 for 20 second. Save the new event table as Flow 90
deg.et
In
the ‘ADC’ menu load file: 90
deg.adc
Under
the ‘Automated Analysis’ menu in
the ‘Post Processing Definition’
menu load file: Remove DC.pp
In
the ‘Average’ menu load file: 1
scan.avg
Start
Lock
Wait
till you get the ‘Fine lock 1’ message and verify a good Lock performance
using the tools in ‘Lock Menu’
Open
the external manual valves on the NEMA enclosure
Turn
on the water pump.
Run
autoshim routines according to the “Improving
existing Shimming” procedure using the new Flow
90 deg.et