Thermo Scientific PARTISOL 2000 User manual

SERVICE MANUAL
PARTISOL® MODEL 2000
AIR SAMPLER
April 2000
Revision B
R&P Part Number 42-002521
Rupprecht & Patashnick Co , Inc
25 Corporate Circle
Albany, NY 12203 USA
phone [phone]
fax [phone]
the new microweighing technology

Service Manual, Partisol Model 2000 Air Sampler
PAGE I
Revision B 000
As R&P instrumentation changes, so do our Operating and Service manuals. How
ever, these changes may affect only one aspect of an instrument, while leaving the
instrument as a whole unchanged. To explain these individual changes to customers,
R&P will update only those sections of its Operating and Service manuals that are
affected by the instrument updates or improvements. As each manual section changes,
so does its revision number, which is located at the top right corner of each page of each
section.
To help customers keep track of the changes to the Partisol Model 2000 Air Sampler
and its service manual, following is a list of the manual sections with their respective
revision numbers:
Section Number and Description Revision Number
Section 1: Introduction B.000
Section 2: Troubleshooting Guides B.000
Section 3: Service Procedures B.000
Section 4: Electrical Schematics B.000
Section 5: R&P Return Policy B.000
Appendix A: Hardware Connections B.000
Index B.000
Section Revision List

Service Manual, Partisol Model 2000 Air Sampler
PAGE II
Revision B 000
Revision Description List
To help customers keep track of the changes to the Partisol Model 2000 Air Sampler
and its service manual, following is a list of the manual sections with their respective
revision descriptions. This list contains all changes made to the manual since the last
update:
Section Number and Description Revision Description
Section 1: Introduction Updated Overview of
Manual section.
Section 2: Troubleshooting Guides All troubleshooting guides
have been updated to reflect
changes to electronics.
Section 3: Service Procedures All service procedures
have been updated to reflect
changes to electronics.
Section 4: Electrical Schematics All electrical schematics
have been updated.
Section 5: R&P Return Policy Changes have been made
to update return procedures.
Appendix A: Hardware Connections Updated hardware
connections.
Index Newly added section.

Service Manual, Partisol Model 2000 Air Sampler
PAGE III
Revision B 000
Tab e of Contents
SECTION 1: INTRODUCTION 1-1
1 1 Overview of Manual 1-1
SECTION 2: TROUBLESHOOTING GUIDES 2-1
2 1 Using the Troubleshooting Guides 2-1
2 1 1 What equipment do I need? 2-1
2 1 2 Where do I start? 2-1
2 1 3 I have chosen a flow chart to begin with Now what? 2-2
2 1 4 How do I check a cable’s continuity? 2-2
2 1 5 How do I locate a test point on an electronic board? 2-2
2 1 6 How do I find pin 1? 2-2
2 1 6 1 D-Type Connectors 2-3
2 1 6 2 Ribbon Cable Connectors 2-3
2 1 6 3 Molex Connectors 2-3
2 1 6 4 Round Connectors 2-4
2 2 Troubleshooting Guides 2-5
2 2 1 Ambient Temperature Error (T) Flow Chart 2-6
2 2 2 Display Troubleshooting Flow Charts — A and B 2-7
2 2 3 Display Backlight Troubleshooting Flow Chart 2-9
2 2 4 Electronics Compartment Error (I) Flow Chart 2-10
2 2 5 Flow Out of Range Error (F) Flow Charts — A and B 2-11
2 2 6 Keypad Troubleshooting Flow Chart 2-13
2 2 7 Ambient Pressure Error (P) Flow Chart 2-13
2 2 8 Power Supply Flow Charts 2-14
2 2 9 System Leak Troubleshooting Flow Chart 2-18
2 2 10 Power Fail Error (E) Flow Chart 2-18
2 2 11 User Analog Output Troubleshooting Flow Chart 2-19
SECTION 3: SERVICE PROCEDURES 3-1
3 1 Maintenance Procedures 3-1
3 1 1 Exchanging the Large In-Line Filter 3-1
3 1 2 Exchanging the Fuses 3-3
3 1 3 Cleaning the Air Intake Filter 3-5
3 1 4 Inspecting “V” Seals 3-6
3 1 5 Leak Check 3-7
3 1 6 Testing the Batteries 3-9
3 1 6 1 Testing the Round Coin Cell Battery (BT1) 3-9
3 1 6 2 Testing the Battery-Backed RAM Socket Battery 3-10
3 2 Calibration Procedures 3-11
3 2 1 Interface Board Calibration 3-11
3 2 2 Analog Input Calibration 3-14
3 2 3 Ambient Air Temperature Calibration 3-17

Service Manual, Partisol Model 2000 Air Sampler
PAGE IV
Revision B 000
3 2 4 Ambient Pressure Calibration 3-18
3 2 5 Mass Flow Controller Calibration 3-19
3 3 Remove and Replace Procedures 3-22
3 3 1 Removing/Replacing the Display 3-22
3 3 2 Removing/Replacing the Fan 3-24
3 3 3 Removing/Replacing the Mass Flow Controller Assy 3-25
3 3 4 Removing/Replacing the Electronics Heater/Fan Assy 3-26
3 3 5 Removing/Replacing the Interface/CPU Board Assy 3-27
3 3 6 Removing/Replacing the Keypad 3-29
3 3 7 Removing/Replacing the Pump 3-30
3 3 8 Removing/Replacing a Valve 3-32
SECTION 4: ELECTRICAL SCHEMATICS 4-1
4 1 Electrical Schematics 4-1
4 1 1 Interface Board 4-2
4 1 2 Interconnect Diagrams 4-10
SECTION 5: R&P RETURN POLICY 5-1
5 1 R&P Return Policy — Instrument Components 5-1
5 2 R&P Return Policy — Systems 5-3
5 3 Continental US Shipping Instructions 5-4
5 4 International Shipping Instructions 5-4
APPENDIX A: HARDWARE CONNECTIONS A-1
INDEX I
Tab e of Contents (continued)

Service Manual, Partisol Model 2000 Air Sampler
SECTION 1: INTRODUCTION PAGE 1-1
Revision B 000
The information contained in this manual will allow the user to do preliminary
troubleshooting to fix some problems or to give the maximum amount of information
available to the factory.
1.1. OVERVIEW OF MANUAL
Section 1 : Introduction
This section provides an overview of the Service Manual.
Section 2 : Troubleshooting Guides
This section contains troubleshooting guides in the form of flow charts to aid the user
when performing diagnostics.
Section 3 : Service Procedures
This section contains the service procedures (maintenance and calibration) required
to maintain consistent operation of the Partisol sampler. In addition, this section
contains procedures describing installation of system components if exchange is
necessary.
Section 4 : Electronic Schematic Diagrams
This section contains schematic diagrams and interconnect diagrams of the major
electronic components in the instrument.
Section 5 : R&P Return Policy
This section contains information regarding the return of whole systems or individual
components for warranty or billable repair.
Appendix A: Hardware Connections
This section contains the pin assignments of the output connectors on the Partisol
Sampler.
Section 1: Introduction

This page left intentionally blank

Service Manual, Partisol Model 2000 Air Sampler
SECTION 2: TROUBLESHOOTING GUIDES PAGE 2-1
Revision B 000
Section 2: Troub eshooting Guides
This section contains troubleshooting guides in the form of flow charts to aid the user
when performing diagnostics. This section should be used in conjunction with the
electrical schematics located in Section 4. Read Section 2.1 before using any of the
troubleshooting guides.
2.1. USING THE TROUBLESHOOTING GUIDES
The troubleshooting guides give the user a logical succession of steps to follow when
diagnosing a problem. Following is a list of the questions most commonly asked by
users with regard to the guides.
2.1.1. WHAT EQUIPMENT DO I NEED?
The main piece of equipment needed is a multimeter (that measures DC and AC
voltages and resistance) with at least a 4 digit resolution.
2.1.2. WHERE DO I START?
Look at the main screen of the Partisol Model 2000 Air Sampler. Any active errors
will be indicated in the upper left corner. Possible error codes are:
OK Great! You have no errors!
E Power Failure — A system power failure occurred during sampling.
F Flow Out of Range — The measured sample flow rate through the
sample filter deviated by more than 7% from its setpoint for more than
1 minute.
T Ambient Temperature Sensor — The ambient temperature sensor
was not installed correctly or indicated an invalid value. The ambient
temperature must be between 40°C and 60°C to be valid.
P Ambient Pressure Sensor — The ambient pressure sensor indicated
an invalid value. The ambient pressure must be greater than 0.4
atmospheres to be valid.
I Electronics Compartment Temperature — The temperature of the
instrument electronics compartment was outside of its usual operat
ing range. The electronics temperature must be between 5°C and
60°C or the electronics may not operate reliably.

Service Manual, Partisol Model 2000 Air Sampler
SECTION 2: TROUBLESHOOTING GUIDES PAGE 2-2
Revision B 000
2.1.3. I HAVE CHOSEN A FLOW CHART TO BEGIN WITH. NOW WHAT?
Now that you have chosen a particular flow chart, begin in the upper left corner of the
chart and follow the “flow” of instructions until you can go no further. These
instructions will bring you through a logical succession of steps to help you determine
where the problem is and what to do about it. Document the result of each step as it
is completed. This information is important if R&P is contacted.
2.1.4. HOW DO I CHECK A CABLE’S CONTINUITY?
Throughout the flow charts are instructions which indicate that a cable’s continuity
should be checked. You must check a cable’s continuity to verify that a particular
cable has not been damaged.
Fo ow these steps to check a cab e’s continuity:
1) Set the mu timeter so it wi measure resistance ( W ).
2) Determine which cab e you are checking and ocate its corre-
sponding connectors.
3) Refer to the interconnect diagrams in Section 4 to determine
which pins are connected from one connector to the other. (For
examp e, is pin 1 on one connector connected to pin 1 on the
other connector or to a different pin?)
4) P ace one ead of the mu timeter on the first pin on one of the
connectors and p ace the other ead on the corresponding pin of
the other connector. The resistance shou d be very c ose to zero
if the continuity is correct.
5) Repeat steps 2-4 for each set of pins being checked.
2.1.5. HOW DO I LOCATE A TEST POINT ON AN ELECTRONIC BOARD?
Refer to the schematic diagrams for the electronics in Section 4. A drawing of the
interface board is included in this section and test points are labeled.
2.1.6. HOW DO I FIND PIN 1?
There are four types of connectors used on the Partisol Monitor, “D” type connectors,
ribbon cable connectors, 2 , 4 and 10 pin Molex connectors and round 3 , 4 and 6
pin connectors.

Service Manual, Partisol Model 2000 Air Sampler
SECTION 2: TROUBLESHOOTING GUIDES PAGE 2-3
Revision B 000
2 1 6 1 D-TYPE CONNECTORS
There is only one “D” type connector used on the Partisol Monitor. It is a female, 9
pin, “D” type connector labeled “RS 232” on the front panel.
2 1 6 2 RIBBON CABLE CONNECTORS
All ribbon cable connector pins are counted the same, regardless of the total number
of pins. However, the location of pin 1 may vary. The location of pin 1 is noted within
the silk screen on the corresponding electronic board. For example purposes, a 24
pin ribbon cable connector is displayed below.
2 1 6 3 MOLEX CONNECTORS
The Molex connectors used on the Partisol Monitor are white and have 2 pins (such
as the hub valve connector (P5) on the underside of the interface board), 4 pins (such
as the AC input connector (P2) on the interface board), or 10 pins (such as the 24V/
5V transformer connector (P3) on the interface board). The easiest way to determine
which pin is pin 1 on a Molex connector is to determine what color wire corresponds
to pin 1. You can find this information in the interconnection diagrams in Section 4.
Once you determine the proper wire color, then you can examine the connector and
find pin 1.

Service Manual, Partisol Model 2000 Air Sampler
SECTION 2: TROUBLESHOOTING GUIDES PAGE 2-4
Revision B 000
2 1 6 4 ROUND CONNECTORS
There are three round connectors used on the back of the Partisol Monitor: a 3 pin
round connector is used for the ambient temperature sensor, a 4 pin round connector
is used for the user output, and a 6 pin round connector is used for the anemometer.

Service Manual, Partisol Model 2000 Air Sampler
SECTION 2: TROUBLESHOOTING GUIDES PAGE 2-5
Revision B 000
2.2. TROUBLESHOOTING GUIDES
The troubleshooting guides included in the section should be used in conjunction with
the following revisions of the schematics included in Section 4 of this manual:
Schematic Schematic Schematic
Description Part Number Revision
Interface Board 81 005496 B
Interconnection Diagrams 81 005912 C

Revision B 000
Service Manual, Partisol Model 2000 Air Sampler SECTION 2: TROUBLESHOOTING GUIDES PAGE 2-6
2.2.1. AMBIENT TEMPERATURE ERROR (T) FLOW CHART
AMBIENT TEMPERATURE ERROR TROUBLESHOOTING FLOW CHART
Error code
“T”
This error code occurs if
the ambient temperature
is out of range
The temperature must be
between -40°C and 60°C
to be valid
Place multimeter across test
points AMBTEMP (blue) and
AGND (black) on interface
board (see note 1)
Ensure ambient temperature
probe is properly attached to
the back of the instrument
Voltage
nominal?
Place multimeter across
test point +15V (red) and
AGND (black) on interface
board
No
Voltage =
~+15V? No
Yes
Yes
Replace ambient
temperature sensor cable
R&P P/N 51-004352-0001
Check continuity of cable
between P54 and ambient
temperature sensor back
panel connector (P52) (see
note 2)
Continuity OK?
Replace cable
R&P P/N 51-005633
No
Note:
1 The voltage at this test point is related to the
temperature according to the following
equation:
1°K = 10mVDC (nominal)
2 Pins for continuity check of cable P54 to P52:
P54 P52
Pin 1 Pin 1
Pin 2 Pin 2
----- Pin 3
3 Pins for continuity check of cable P54 to P4:
P54 P4
Pin 1 Pin 1
Pin 2 Pin 2
Go to the statistics screen
and observe the ambient
temperature reading
Yes
Check continuity of
cable between P4
(interface board) and
P54 (see note 3)
Yes
Continuity OK?
Replace cable
R&P P/N 51-006183
No
Replace interface/CPU
board assembly
R&P P/N 50-005496
& 10-002407
Replace interface/CPU
board assembly
R&P P/N 50-005496
& 10-002407

Revision B 000
Service Manual, Partisol Model 2000 Air Sampler SECTION 2: TROUBLESHOOTING GUIDES PAGE 2-7
2.2.2. DISPLAY TROUBLESHOOTING FLOW CHARTS — A AND B
DISPLAY TROUBLESHOOTING FLOW CHART-A
Display blank or
incomplete
Blank or
incomplete?
Incomplete
Yes
No
Blank
Resume normal
operation
Is backlight on?
Display contrast
may need
adjustment
Adjust contrast with
knob on front of
display
No
Yes
Able to adjust
contrast?
Perform system
reset
Still Blank
Power system
off then on
Hit several keys
on the keypad
Yes
No
Did pump run
at all when power was
turned on?
No
Yes
Check continuity of cable
P16A (interface board) to
P1 (display) (see note 1
on sheet B)
Continuity OK? Replace cable
R&P P/N 51-005637
Original display was
defective
Install a working
display and recheck
R&P P/N 10-002254
Display now
work?
No
Yes
Go to A
A
Check continuity of
contrast adjustment
pot assembly
No
Yes
Continuity OK?
Replace assembly
R&P P/N 51-005668
No
Is the electronics
compartment fan
running?
Yes
Ensure the proper
voltage is present at
the AC outlet
Yes
No
Components
OK?
Check the continuity of all the
AC components between the
power cord and P2 on the
interface board
Yes
No
AC voltage OK?
Correct problem
Replace defective
component
Go to B
No
Yes
Is
electronics
compartment
temperature
>65°C?
Place hand near (do NOT
touch!) the heater at the
top of the electronics
compartment
NoYes Heat coming
from heater?
Wait for instrument to
cool down
Replace interface/CPU
board assembly
R&P P/N 50-005496
& 10-002407
Replace interface/CPU
board assembly
R&P P/N 50-005496
& 10-002407
Replace interface/CPU
board assembly
R&P P/N 50-005496
& 10-002407

Revision B 000
Service Manual, Partisol Model 2000 Air Sampler SECTION 2: TROUBLESHOOTING GUIDES PAGE 2-8
DISPLAY TROUBLESHOOTING FLOW CHART-B
B
Note:
1 Pins for continuity check of cable P16A to P1:
P16A P1 P16A P1
Pin1 Pin1 Pin12 Pin12
Pin2 Pin2 Pin13 Pin13
Pin3 Pin3 Pin14 Pin14
Pin5 Pin5 Pin15 Pin15
Pin6 Pin6 Pin16 Pin16
Pin7 Pin7 Pin17 Pin17
Pin8 Pin8 Pin18 Pin18
Pin9 Pin9 Pin19 Pin19
Pin10 Pin1 Pin20 Pin20
Pin 11 Pin 11
Yes
No
Is pump still
running?
Yes
No
Is
electronics
compartment
temperature
>2°C?
Place multimeter across
test point +24V (red) and
PGND (black) on interface
board
Voltage =~
24V? No
Yes
Perform system
reset
Resume normal
operation
Problem
corrected? No
Yes
Place multimeter across
test point +6V (red) and
PGND (black) on interface
board
Voltage =~ 6V?
Yes
No
Check the 4A fuse used
for the 24 5V@3 6A
voltage from
transformer
Fuse OK?
No
Check the 5A fuse used
for the 8 3V@5 4A
voltage from
transformer
Fuse OK?
No
Yes
Original boards were
defective
Replace interface/CPU board
assembly with known good one
R&P P/N 50-005496 & 10-002407
Problem
corrected?
No
Yes
Replace transformer
R&P P/N 03-002402
Placehandnear(doNOT
touch!) the heater at the
top of the electronics
compartment
Yes
No
Heat coming
from heater?
Wait for instrument to
warm up
Perform system
reset
Resume normal
operation
Problem
corrected? No
Yes Contact R&P
Check continuity
between the heater
terminals and P11 on
the interface board
Continuity OK? No
Yes
Replace heater
R&P P/N 56-005909-0120
or 56-005909-0240
Replace fuse
R&P P/N 04-005510-0004
Replace fuse
R&P P/N 04-003681
Yes
Go to A
Replace interface/CPU
board assembly
R&P P/N 50-005496
& 10-002407

Revision B 000
Service Manual, Partisol Model 2000 Air Sampler SECTION 2: TROUBLESHOOTING GUIDES PAGE 2-9
2.2.3. DISPLAY BACKLIGHT TROUBLESHOOTING FLOW CHART
DISPLAY BACKLIGHT TROUBLESHOOTING FLOW CHART
Backlight not on
Yes
No
Resume normal
operation
Is backlight on?
Power system
off then on
Hit several keys on
the keypad
Go to diagnostics
screen and turn on
backlight
Yes
NoIs backlight on?
Key on keypad pressed
before may be bad
CheckstatusofLED
“BLITE” on interface
board
Yes
No
Is LED on?
Perform a system
reset and recheck
the LED
Yes
No
LED on? Recheck backlight
Replace display
R&P P/N 10-002254
Check continuity of cable
P16B (interface board)
and display connection
(see note 1)
Yes
No
Continuity OK?
Replace cable
R&P P/N 51-004665
Note:
1 Pins for continuity check of cable P16B to display:
P16B Disp ay
Pin 1 A
Pin 2 K
Replace interface/CPU
board assembly
R&P P/N 50-005496
& 10-002407

Revision B 000
Service Manual, Partisol Model 2000 Air Sampler
SECTION 2: TROUBLESHOOTING GUIDES PAGE 2-10
2.2.4. ELECTRONICS COMPARTMENT ERROR (I) FLOW CHART
Error code
“I”
This error code occurs if
the electronics
compartment temperature
is out of range
This temperature must be
between -5°C and 60°C to
be valid Outside of this
range, the operation of the
electronics may not be
reliable
Observe the LED
labeled “HEAT” on the
interface board
Go to the statistics screen
and observe the reading for
the instrument temperature
Electronics
temp < 15°C?
No
Go to the diagnostics
screen and observe the
status for the electronics
compartment heater
LED on?
Perform system
reset and recheck
No
Yes
Note: 1 The voltage at this test point is related to the
temperature according to the following equation:
1°K = 10mVDC
Place multimeter across
test points BDTEMP (blue)
and AGND (black) on
interface board
(see note 1)
Voltage
nominal?
No
Yes
Replace interface/CPU
board assembly
R&P P/N 50-005496
& 10-002407
Electronics
heater status
OFF?
Yes
No
Go to the diagnostics
screen and observe the
status for the instrument
heater
No
Electronics
heater status
on?
Yes
Yes
ELECTRONICS COMPARTMENT TEMPERATURE ERROR TROUBLESHOOTING FLOW CHART
LED on?
Recheck instrument
temperature
Yes
Place hand near (do NOT
touch!) the heater at the top
of the electronics
compartment
Heat coming
from heater?
No
Yes
Electronics
compartment fan
operating?
No Yes
Replace electronics
compartment fan
Ambient temperature may be
too hot for instrument
to run properly
Perform a system
reset and recheck
heater status
No
Electronics
heater status
OFF?
Yes
No
Recheck instrument
temperature
LED should be
on when heater
is off
Place hand near (do NOT
touch!) the heater at the
top of the electronics
compartment
Heat coming
from heater?
Yes
No
Wait for instrument
to warm up
Perform a system
reset and recheck
heater status
Electronics
heater status
on?
Yes
No
Recheck instrument
temperature
Observe the LED
labeled “HEAT” on the
interface board
LED off?
Perform system
reset and recheck
LED status
No
Yes No
LED off? Recheck instrument
temperature
Yes
LED should be
off when heater
is on
Replace interface/CPU
board assembly
R&P P/N 50-005496
& 10-002407
Place multimeter
across line voltage
heater terminals
No
AC line voltage
present?
Replace heater
R&P P/N 56-005909-0120
or 56-005909-0240
Yes
Replace interface/CPU
board assembly
R&P P/N 50-005496
& 10-002407
Replace interface/CPU
board assembly
R&P P/N 50-005496
& 10-002407
Replace interface/CPU
board assembly
R&P P/N 50-005496
& 10-002407
Electronics
temperature >=
60°C?
Yes
Replace interface/CPU
board assembly
R&P P/N 50-005496
& 10-002407
No

Revision B 000
Service Manual, Partisol Model 2000 Air Sampler
SECTION 2: TROUBLESHOOTING GUIDES PAGE 2-11
2.2.5. FLOW OUT OF RANGE ERROR (F) FLOW CHARTS — A AND B
Error code
“F”
Thiserrorcodeoccursiftheflow
rate through the filter has not
been maintained within 7% of the
setpoint for 1 minute
No
Perform an ambient
temperature calibration
Is status “P”
present?
Refer to the
ambient
temperature
troubleshooting
flow chart
Yes
No
Is status “T”
present? Yes
Refer to the
ambient
pressure
troubleshooting
flow chart
FLOW OUT OF RANGE ERROR TROUBLESHOOTING FLOW CHART - A
Did “constant
out of range” error
occur?
Perform an ambient
pressure calibr ation
Perform a flow
controller calibration
Able to
calibrate?
Place the leads of a
multimeter across test points MFS (blue) and
AGND (black) on the
interface board
Voltage
measured ~
voltage
displayed?
No
Check continuity between
the mass flow sensor
connector (P60) and the
interface board (P21A)
(see note 1 on sheet B)
Continuity OK?
No
Yes
Replace cable
R&P P/N 51-004656-0018
Replace mass flow
controller assembly
R&P P/N 55-002663
Yes
Did “constant
out of range” error
occur?
Yes
No
No
Yes
Refer to the
ambient
pressure
troubleshooting
flow chart
Go to the diagnostics
screen and turn on the
pump
Is pump operating? No
Yes
Ensure that hoses are
properly connected
between pump and
accumulator (located on
back of enclosure)
Ensure that hoses are
properly connected
between accumulator and
mass flow control
assembly
Ensure that manual valves
on mass flow controller
assembly are open
(handles in direction of
flow)
Ensure that the large
in-line filter is not
clogged
Ensure that the sample
filter is not clogged
Ensure that nothing is
blocking the inlet to the
hub or satellite
Go to the calibration screen,
turn on the pump and the
valve corresponding to the
problem station
Turn off the pump
Flow rate
change as
adjusted?
NoYes
Press the <Decrflw> or
<Incrflw> key and observe
the flow rate
Check LED “Pump” on
interface board (if the LED is
on, the pump should be of f)
LED On?
No
Yes
Replace cable
R&P P/N 51-005910
Perform a system
reset
Go to the diagnostics
screen and turn on the
pump
LED On?
Yes
No Recheck flow
Check the
corresponding valve’s
LED (Hub1, Sat2, etc )
on interface board
LED On?
No
If the LED is on,
the valve should
be on
Replace valve
R&P P/N 32-002379
Perform a system
reset
Turn on valve and recheck
LED status
LED On?Yes
No
Recheck flow
Remove the hose that
attaches the back side
of the large in-line filter
to the valve manifold
Flow rate
change as
adjusted?
Yes
No
Go to the diagnostics
screen and turn on the
Hub1 valve and the
pump
Observe the value
displayed for FLOW
Refer to the
ambient
temperature
troubleshooting
flow chart
No
Yes
Go to
B
Go to the statistics screen and
determine which station (Hub1,
Sat2, etc ) was sampling when
error occurred
Replace interface/CPU
board assembly
R&P P/N 50-005496
& 10-002407
Check continuity of valve
assembly (P5,6,7 or 8 to
corresponding valve)
Continuity OK?
Yes
No
Replace interface/CPU
board assembly
R&P P/N 50-005496
& 10-002407
Contact R&P
Replace interface/CPU
board assembly
R&P P/N 50-005496
& 10-002407
AC line
voltage present
at P10 (interface
board)?
Yes
No
Replace interface/CPU
board assembly
R&P P/N 50-005496
& 10-002407
Check continuity of cable
between P10 (interface
board) and P53 (pump)
(see note 2 on sheet B)
Continuity OK?
No
Yes
Replace pump
R&P P/N 54-005949-0120
or 54-005949-0240
Recheck flow

Revision B 000
Service Manual, Partisol Model 2000 Air Sampler
SECTION 2: TROUBLESHOOTING GUIDES PAGE 2-12
FLOW OUT OF RANGE ERROR TROUBLESHOOTING FLOW CHART - B
As flow is adjusted, the motor
should be heard as it turns
Hear motor
turning? Yes
No
Place the leads of a multimeter
across test points MOTORA
(green) and MOTORB (green)
on the interface board
Voltage ≈0V if motor off,
voltage ≈ ±8 4 to 14V when
turning
Voltage between
8 4 and 14V?
Yes
No
Check the continuity of the cable
from the MFC motor connection
(P61) to the interface board
(P21B) (see note 3)
Continuity OK? Yes
No
Replace cable
R&P P/N 51-005904
Replace mass flow
controller assembly
R&P P/N 55-002663
Place the leads of a multimeter
across test points PWM0
(green) and DGND (black) on
the interface board
Voltage vary as
flow is adjusted? Yes
No
Voltage≈ 2 5V if motor is not
moving, voltage = ≈ 5V or ≈ 0
when motor is moving (voltage
depends on direction)
Reset the system and
recheck voltage
Voltage vary as
flow is adjusted?
Yes
No
Recheck flow
Place the leads of a multimeter
across test points MFS (blue)
and AGND (black) on the
interface board
Voltage
vary as flow is
adjusted?
Yes
No Reset the system and
recheck voltage
Voltage vary as
flow is adjusted? Yes
No
Recheck flowRecheck flow
Place the leads of a multimeter
across test points 2 5V (red) and
PWM0 (green) on the interface
board
Voltage = 2 5V
±0 002?
Yes
No
Turn off the pump
Adjust potentiometer R53 on
the interface board to obtain
the correct voltage
Able to adjust?Yes
No
Recheck flow
Reset the system and
recheck voltage
Able to adjust?
Yes
No
Recheck flow
B
Replace interface/CPU
board assembly
R&P P/N 50-005496
& 10-002407
Turn off the pump and
setflowratetozero
Replace interface/CPU
board assembly
R&P P/N 50-005496
& 10-002407
Replace interface/CPU
board assembly
R&P P/N 50-005496
& 10-002407
Turn on pump
Replace mass flow
controller assembly
R&P P/N 55-002663
Note: 1 Pins for continuity check of cable P60 to P21A:
P60 P21A Pin 1 Pin 1 {MAS O ut} Pin 2 ----- {Not Used} Pin 3 Pin 3 {MAS G nd} Pin 4 Pin 4 {MAS V+}
2 Pins for continuity check of cable P10 to P53:
P10 P53 Pin 1 Pin 1 {Line} Pin 2 Pin 2 {Neutral} Pin 3 ----- {Not Used} Pin 4 ----- {Not Used}
3 Pins for continuity check of cable P61 to P21B:
P61 P21B Pin 1 Pin 1 {+24V} Pin 2 Pin 2 {-}