Thermo Scientific Orion 2230XP User manual

Thermo Scientific Orion
2230XP Silica Analyzer
271539-001 •Revision A •March 2016
User Manual

Contents
Section 1 ....................................................................................................................... 6
General Information ..................................................................................................... 6
Safety Precautions.......................................................................................................................6
Symbols Used in this Manual.......................................................................................................7
Specifications...............................................................................................................................7
Section 2 ....................................................................................................................... 9
Introduction................................................................................................................... 9
Unpacking the Instrument............................................................................................................9
Startup Procedure ............................................................................................................10
General Product Description......................................................................................................11
User Interface...................................................................................................................12
Menus Display..................................................................................................................14
Measurement Mode Display.............................................................................................14
Analysis Reaction Principle..............................................................................................15
Fluids Storage..................................................................................................................15
Calibration Standard.........................................................................................................15
Reagents Required ..........................................................................................................15
Reagent Consumption......................................................................................................16
Section 3 ..................................................................................................................... 17
Installation Environmental Considerations.............................................................. 17
Mounting the Instrument............................................................................................................17
Plumbing Connections...............................................................................................................19
Installing Peristaltic Pump Head Tubing...........................................................................20
Installing the Reagents ..............................................................................................................22
Connecting Power to the Analyzer.............................................................................................22
Analog Outputs Connections............................................................................................24
Alarm Connections...........................................................................................................24
Inputs Signal Connections................................................................................................27
Communication Signal Connections ................................................................................27
Section 4 ..................................................................................................................... 28
Startup and Operation.....................................................................................................28
Executing a manual calibration..................................................................................................29
In Auto- Calibration mode ..........................................................................................................29
Placing the Analyzer into Service ..............................................................................................30
Validating a Calibration Standard ..............................................................................................30
Running an Analysis (Analyze Once) ........................................................................................31
Instrument Operation Modes .....................................................................................................31
Sample Analysis and Validation.................................................................................................31
Calibration..................................................................................................................................32
Cleaning.....................................................................................................................................32
Post Wash .................................................................................................................................32
Priming.......................................................................................................................................32
Section 5 ..................................................................................................................... 34

Analyzer Hardware Configuration and Calibration.................................................. 34
Optics Calibration ......................................................................................................................34
Optics Calibration Steps ............................................................................................................35
Reaction Cell Temperature Calibration......................................................................................35
Pumps Calibration .....................................................................................................................36
Pumps Calibration Method ........................................................................................................36
Analog Outputs Calibration........................................................................................................37
Section 6 ..................................................................................................................... 38
Calibration of the Instrument for Measurement Analysis ....................................... 38
Theory of Calibration .................................................................................................................38
Methods of Calibration...............................................................................................................39
Single Point Calibration .............................................................................................................39
Base Line Calibration.................................................................................................................39
High Range Dilution-Factor Calibration .....................................................................................40
Theory of Measurement.............................................................................................................41
Mode of Measurement...............................................................................................................42
Auto Restart Mode.....................................................................................................................42
Manual Restart Mode ................................................................................................................43
Measurement Cycle...................................................................................................................44
Cell Wash.........................................................................................................................44
Sample Capture ...............................................................................................................44
Optics Testing ..................................................................................................................44
Checking Reaction Temperature......................................................................................45
Blank Measurement .........................................................................................................46
Add Reagents ..................................................................................................................46
Collect Data......................................................................................................................47
Post Wash........................................................................................................................47
Measurement Data...........................................................................................................48
Printing Results ................................................................................................................48
Section 7 ..................................................................................................................... 49
Menu Overview ........................................................................................................... 49
Setup Menu ...............................................................................................................................50
Measurement Menu...................................................................................................................51
View Data and Alarms Menu .....................................................................................................52
Service Menu.............................................................................................................................53
System Administration Menu .....................................................................................................53
Hardware Setup Menu...............................................................................................................54
Prime Fluidics Menu and New Reagents Blank.........................................................................55
Diagnostics Menu ......................................................................................................................55
Default and Lost or Forgotten Passwords..................................................................................56
User Interface Tree....................................................................................................................57
Section 8 ..................................................................................................................... 60
Terms Definition ......................................................................................................... 60
Section 9 ..................................................................................................................... 66
Maintenance Schedule............................................................................................... 66
Changing Reagents...................................................................................................................66

Installing Tubing Maintenance Kit ....................................................................................67
Cleaning the Reaction Cell ........................................................................................................69
Preparing the Cleaning solution .......................................................................................70
Cleaning the Sample Flow Chamber .........................................................................................71
Stand-By Mode and Extended Shutdown..................................................................................71
SECTION 10................................................................................................................. 76
Standby and On-Demand Modes .............................................................................. 76
Overview....................................................................................................................................76
Factory Setup Recommendations When Operating In “ON-DEMAND” Mode ...........................78
SECTION 11................................................................................................................. 79
Customer Services ..................................................................................................... 79
Notice of Compliance.................................................................................................................79
Declaration of Conformity ..........................................................................................................80
Warranty Information .................................................................................................................81
Warranty Shipments/ Returns/Adjustments...............................................................................82
Consumables.............................................................................................................................82
Assistance .................................................................................................................................82

2230XP Silica Analyzer Thermo Scientific Orion 6
1
General Information
Safety Precautions
The Thermo Scientific™Orion™2230XP Silica Analyzer has been designed with careful
attention to safety. It complies with formal safety design rules established by international
regulatory agencies. Observe all safety warnings marked on the instrument.
These warnings identify areas of potential hazard, which could result in personal injury, or loss
of life.
To ensure that the protection provided by this equipment is not impaired, do not use or install
this equipment in any manner other than that which is specified in this manual.
Do not use this product for any purpose other than described in this manual.
Disconnect power before servicing and prior to making any terminal connections within the
Analyzer enclosure.
Do not operate with the electronics enclosure door open.
SECTION 1

General Information Section 1
2230XP Silica Analyzer Thermo Scientific Orion 7
Symbols Used in this Manual
WARNING
WARNING: This symbol alerts the user about possible hazards that can
cause serious damage to the instrument, and/or personal injury.
CAUTION
CAUTION: This symbol alerts the user about possible faults from incorrect
operation, which if ignored, could result in damage of the instrument.
HOT: This symbol indicates that the marked area can be hot and should not
be touched without care.
EARTH (Ground): This symbol, when noted on the product, identifies the
location of the connection for Protective Earth (ground).
NOTE:
Indicates important information that requires special attention.
Specifications
General
Display
Graphic LCD 120 mm x 92 mm (4.7 in x 3.6 in)
Enclosure
Fluidics IP-65 (NEMA 4X); Electronics IP-52 (NEMA 12) rated for indoor installation
Dimensions (H x W x D)
698 mm x 406 mm x 162 mm (27 in x 16 in x 6 in)
Weight
16 kg (35 lb) without reagents
Mounting
Wall or panel mount
Measuring Method
Heteropoly-molybdenum blue
Measuring interval
15, 20, or 30 minutes (selectable settings and user programmable)

Section 1 General Information
8Thermo Scientific Orion 2230XP Silica Analyzer
Electrical
Power Requirements
110 watts. Automatic voltage recognition from 100 –240 VAC, 110 w (VA), 50 –60 Hz,
Single Phase
Connection
Three wire terminal block (18 –12 AwG) through a 19 mm (3/4-in) bulkhead on side of
the electronics enclosure
Safety Class
I, protective grounding
Fuse Rating
250 VAC, 4 A (fast blow)
Relay Contacts
Four potential free relays with 250 VAC, 2A resistive contact ratings.
Outputs
Each relay may be configured separately to a list of programmable alarm functions
Inputs
Two-isolated analog outputs: 0/4-20mA, max. load 900 ohms
Environmental
Storage Temperature Range
5 –45°C (41 –113°F)
Operating Temperature Range
5 –45 °C (41 –113°F)
Relative Humidity
90% at 40°C (104°F), non-condensing
Altitude
Up to 2000 m
Sample Requirements
Inlet Pressure to Instrument
1 –5 psig
Sample Flow Rate
50 –1000 mL/min with < 100 microns particles size (user provides filter)
Sample Temperature
5 –40°C (41 –104°F)
Sample Fitting
6 mm (1/4-in) OD tubing
Drain Fitting
9.6 mm (3/8-in) OD tubing

2230XP Silica Analyzer Thermo Scientific Orion 9
2
Introduction
The Thermo Scientific Orion 2200 series analyzers are compact wet-chemistry analysis
systems, designed for the continuous on-line analysis of water in several applications across
many industries.
The Orion 2230XP Silica Analyzer uses the colorimetric detection method that relies on specific
reagents that are added to the sample to produce a reacted color compound.
The intensity of the color determines the concentration in reference to a known reacted
standard. The colored compound absorbs energy at a specific wavelength in accordance with
the Beer-Lambert Law.
The instrument uses Light Emitting Diodes (LEDs) that emit light at a narrow bandwidth
selected for the specific application.
The Silica analysis method uses the near infrared LED (NIR) at 810 nm.
Unpacking the Instrument
Remove the analyzer from its shipping carton and inspect it for damage. Verify that all the parts
listed below in the startup kit detail are included.
If damage is evident or if the shipment is incomplete, please contact the Customer Service
department. Do not destroy the shipping container during unpacking so that you can save it for
possible future use.
SECTION 2

Section 2 Introduction
10 Thermo Scientific Orion 2230XP Silica Analyzer
NOTE:
The analyzer may be shipped with a translucent protective cover on the
LCD. Carefully peel off this translucent layer and discard it.
WARNING
DO NOT APPLY ELECTRICAL POWER TO VISIBLY DAMAGED
COMPONENTS, AS INJURY OR FURTHER EQUIPMENT DAMAGE MAY
OCCUR .
Startup Procedure
This section describes the necessary steps to begin using the 2230XP Silica Analyzer. Refer to
Section 3 for instructions on mounting the analyzer, making the plumbing connections, and
connecting electrical power. More details can be found in subsequent chapters.
Once the analyzer is securely mounted in a fixed location, wired to electrical power, wired to
communications, (if necessary) and plumbed to process water, perform the following instrument
Startup Procedure:
1. Power on instrument.
2. To allow longer lifetime of unit, the pinch valve and pump-head tubing are not fully engaged
when the unit is shipped. Refer to Plumbing Connections Section.
a. Reset tubes in pumps heads.
Note: This step must be repeated for all three pump heads.
i. Remove tape.
ii. Slide tube retainer into place along keyway.
iii. Install tubing cover by squeezing both sides, and sliding into grooves.
b. Rest rear tubing in pinch valves.
Note: Be sure tubing is properly seated and does not pinch.
3. Install Reagents. Very carefully match reagent numbers and colors in their proper order.
Refer to next page, Installing the Reagents Section.
NOTES:
It is recommended to wear latex gloves whenever handling or changing
reagents.
Turn the reagent cap clockwise while holding bottle vertical and level.
Inspect the tubes to be sure none have been pinched.
4. Prime the tubing. Please repeat the following sequence 3 times. (See Installing the
Reagents Section)
a. Press Menu.

Introduction Section 2
2230XP Silica Analyzer Thermo Scientific Orion 11
b. Select Services.
c. Select Prime Fluidics.
d. Select Prime All.
Note: This procedure will run automatically and take approximately 10 minutes per
cycle.
5. Refer to Section 4 for more details on startup and operation. Once the above 4 steps have
been completed, (4. a, b, c, d) press Stop, Select Run. Allow the unit to operate overnight
or for at least 12 hours, to become stabilized in the local environment.
6. For additional information on 2230XP Orion Silica Process Analyzer Operation, refer to
Section 4.
Additional detail can be found in the following sections:
Section 4 - Instrument Operation
Section 5 - Analyzer Hardware Configuration and Calibration
Section 6 - Calibration of the Instrument for Measurement Analysis
Section 7 - Menu Overview
Section 8 - Terms Definition
Section 9 - Maintenance Schedule
General Product Description
This User Manual provides the information necessary to obtain the maximum benefits from the
Orion 2230XP Silica Analyzer. All operating instructions, functional descriptions, illustrations,
and other relevant information are contained in this manual. Descriptions of the system
hardware and user-interface software (the control panel) are included, as is an overview of the
Image: Reagent bottle numbers in
proper order

Section 2 Introduction
12 Thermo Scientific Orion 2230XP Silica Analyzer
analytical techniques employed in the analyzer. Step-by-step instructions guide you through all
operating procedures and field programming.
The analyzer is designed for easy operation. Each analyzer in this family runs in a fully-
automated mode for routine, day-to-day water analysis.
The need for operator interaction is minimal. Accordingly, the information required by the
routine operator of this analyzer is modest, and that information is provided in Section 4:
Startup and Operation, of this manual.
Important standard analyzer capabilities include:
Sampling the process stream automatically.
Calculating concentration of your sample and reporting it in units of concentration.
Recalibrating automatically at preprogrammed intervals to compensate for any changes in
captured sample volume, pump flow rates and reagent composition.
Cleaning automatically (when programmed) at user-specified intervals to prevent precipitation
build-up, coating of the optics or bacterial/fungal growth.
The analyzer brings colorimetric laboratory precision to the real world of unattended process
analyzing. It is designed for long life under continuous, rigorous use.
The Orion 2200 series analyzers are designed for accommodating several applications. Each
application requires a specific configuration in hardware and software that is set at the factory.
The product as supplied will have a configuration sheet detailing the setup and the detailed
tests and validation that were conducted at the factory. This analyzer model is intended to use
for water analysis only.
User Interface
General Description
The user-interface consists of a keypad and a graphical LCD display. The keypad is located to
the right of the display. The F1 F4 function keys (soft-keys) take on different meanings
depending on the menu selection. The column on the left of the soft-keys labels the keys with
their appropriate functions.
The RUN key starts the analysis and the STOP key stops the current functioning of the
instrument. The + and - keys allow for navigation between pages. The ENTER key confirms
selections made in the menus. Additional navigation is provided by the soft-keys (in appropriate
menus), for left / right or up / down cursor movement.
The graphical LCD display shows the date, analysis label, time, navigational menus,
information and help to the user, current user, instrument-working mode, current status of the
instrument and the soft-key labels.

Introduction Section 2
2230XP Silica Analyzer Thermo Scientific Orion 13
The MENU key is used to access the menus.
Display Fields
1. DATE FIELD shows the current date.
2. CURSOR indicates current selection.
3. INSTRUMENT NAME FIELD shows instrument nametag.
4. TIME FIELD shows present time.
5. DISPLAY FIELD shows menus / measurements.
6. INFO field shows information / instructions to navigate.
7. USER field shows current user name.
8. MODE field shows whether the instrument is working in Auto, Manual or Run mode.
9. STATUS field shows current working status of the instrument.
10. FUNCTIONAL KEYS ASSIGNMENT FIELD shows the functions allotted to the functional
keys.
11. FUNCTION KEYS select functions.
12. OPERATIONAL KEYS are meant for operation of the instrument.
Symbols used

Escape (Cancel/Back)

Cursor
Logged out (Locked)

Logged in

Scroll Up

Scroll Down
Print

Delete

Scroll Left

Scroll right

Accept

Reject

Section 2 Introduction
14 Thermo Scientific Orion 2230XP Silica Analyzer
Menus Display
A “+” before a menu item denotes that the item has multiple options.
The Up / Down Arrow keys scroll up or down through options and ENTER is used to view
details of the options.
Pressing the MENU key displays the instrument’s Main Menu. System parameters can be
configured from the Main Menu.
NOTE:
The analyzer may be shipped with a translucent protective cover on the
LCD. Carefully peel off this translucent layer and discard it.
Measurement Mode Display
In measurement mode, the instrument displays current and previous readings, units, date and
time. The measurement results can be displayed as large size fonts or normal size fonts. “F1”
key will toggle between large and normal fonts.
NOTE:
In AUTO mode, the user can navigate between different menus even
though the instrument is performing a measurement or a calibration.
Figure 1: Orion 2230XP Silica
Analyzer SiO2layout
SAMPLE &
STANDARD PUMP
SAMPLE CHAMBER
SAMPLE (BACK) N.C.
STANDARD (FRONT) N.O.
RGT1
RGT3
STD
SMP
RGT2 RGT3
REACTION CELL
AIR VENT
REAGENT 1
PUMP
SAMPLE &
STANDARD VALVE
REAGENT 2 PUMP
REACTION CELL
ASSEMBLY
SAMPLE CHAMBER
WITH FLOAT SENSOR
DRAIN SAMPLE (INLET)
SAMPLE (RETURN)
POWER AND
I/O SIGNALS
CONNECTIONS
REAGENT 3 PUMP
RGT2
RGT1

Introduction Section 2
2230XP Silica Analyzer Thermo Scientific Orion 15
DANGER
Handling chemical samples, standards, and reagents can be
dangerous .
Review the necessary Material Safety Data Sheets and become familiar
with all safety procedures before handling any chemicals .
CAUTION
REAGENT BOTTLES MUST BE KEPT TIGHTLY CLOSED.
Observe all health and safety procedures for handling chemicals. Wash any
spillage with Distilled water.
Allow enclosure to vent any trapped fumes before servicing.
Air purge of enclosure is recommended .
EMPTY ALL REAGENTS BEFORE SHUTTING UNIT DOWN.
Analysis Reaction Principle
The colorimetric method is based on the reaction of reagents with the sample to produce a
color. This color is measured and compared to a standard color, which proportionally defines its
concentration.
The color compound, which is the reacted mixture of the sample with the reagents, absorbs
energy at a specific wavelength in accordance to Beer-Lambert Law.
Fluids Storage
Store all reagents and standards in a dark place at room temperature.
Calibration Standard
Standard part # 223020, the calibration standard required for this application is a 200 ppb
solution. Each calibration cycle consumes approximately 50 mL. Each bottle contains enough
standard solution for approximately 10 calibrations.
Reagents Required
Reagent Kit: 2230RE contains all 3 reagents.
The analyzer requires three reagents and one standard solution. All bottles are housed in the
fluidics enclosure compartment.
For proper operation: Ensure that the reagents are correctly installed, the analyzer tubing is
correctly routed in the pumps and pinch valves, and that the analyzer drain tube is connected to
an atmospheric drain. All of the reagents and standard vent tubes need to exhaust to the
outside of the enclosure, to minimize the trapping of any vapors inside the enclosure.

Section 2 Introduction
16 Thermo Scientific Orion 2230XP Silica Analyzer
1. Connect sample to the analyzer and ensure that it is flowing through the sample chamber
by observing the flow from the sample return line.
2. Turn the power ON to the instrument. After the booting sequence (this may take several
minutes), press STOP and then MENU key:
3. Select SERVICES MENU option and then PRIME FLUIDICS ➔AUTO PRIME ➔
ENTER
The instrument will go through a priming sequence of all the available solution to the analyzer.
Follow the startup procedure described in Section 4. You may repeat the AUTO PRIME
sequence as necessary to purge out any trapped bubbles in the lines.
Reagent Consumption
The Silica analysis requires three reagents. The reagent usage depends on the frequency of
analysis. Typically 0.20 mL of each reagent is used per analysis cycle.
Based on 4 analyses per hour, the 1 Liter reagents should last approximately 45 days.

2230XP Silica Analyzer Thermo Scientific Orion 17
3
Installation Environmental
Considerations
The instrument is designed for general-duty, indoor installations. The electronics enclosure
environmental rating is NEMA 12 and the Fluidics enclosure is a NEMA 4X fiberglass with a
clear door window.
The Orion 2230XP Silica Analyzer should be installed in a well-ventilated location, with ambient
temperature between 5°C and 45°C (41° to 113°F); and relative humidity not to exceed 90% at
40°C. The area must be free from dust, corrosive gases, vibration and shocks; sheltered from
direct sunlight, and shielded from dripping water. Power should be instrument grade with over
voltage protection, and a provision for disconnecting power.
Mounting the Instrument
The instrument case is designed for wall or panel mounting.
Use four #10 screws or equivalent for proper support.
Refer to Figure 2 and Figure 3 for dimensions (in mm and inches).
Make sure that the wall that you choose can support the weight of the instrument
(approximately 20 kg or 44 lbs.) See Figure 2.
Locate the instrument as close to the sampling point as practical to ensure complete purging
of the sample line during each cycle.
Allow approximately 50 cm (20 in.) of clearance at the left side for door swing. Also allow
enough clearance on the right side for wiring conduit.
Locate the analyzer height such that the display is at eye-level height for an operator,
allowing also for appropriate sample and drain connections.
SECTION 3

Section 3 Installation Environmental Considerations
18 Thermo Scientific Orion 2230XP Silica Analyzer
SAMPLE IN
SAMPLE RETURN
FLOW DIRECTION
FILTERED AND OIL FREE
AIR PURGE SUPPLY LINE
CONNECT TO
ATMOSPHERIC DRAIN
FLOW DIRECTION
SHUT-OFF
VALVE
AC MAINS
1
0
POWER CIRCUIT BREAKER
MUST BE CLEARLY IDENTIFIED
INSTALL HEIGHT TO
OPERATOR EYE LEVEL
PROCESS LINE
USER TO INSTALL A 40 to 60 MICRON
FILTER, SIZE IS BASED ON SAMPLE
CONDITION, SET FLOW RATE
BETWEEN : 50 TO 500 ML/MIN
AC POWER
SAMPLE CHAMBER
SAMPLE (BACK) N.C.
STANDARD (FRONT)N.O.
RGT1
RGT3
STD
RGT2 RGT3
DRAIN SAMPLE (INLET)
RGT1
Figure 2: Mounting dimensions
SAMPLE CHAMBER
 
SAMPLE IN 1/4 ''
SAMPLE RETURN 1/4 ''
DRAIN 3/8 ''
VENT LINES
AIR PURGE
AIR PURGE AIR VENT
I/O SIGNALS
POWER IN
ALLOW 20 INCHES
(510 mm) CLEARANCE
FOR DOOR SWING
70mm(2.75 ")
304.8mm (12.0")
674.6mm (26.5")
132mm (5.19 ")
25mm (0.98 ")
30mm (1.18 ")
330.3mm (13.0 ")
41mm (1.62 ")
162mm (6.4")
698mm (27.5")
152mm (6")
406mm (16")
SAMPLE
STANDARD

Installation Environmental Considerations Section 3
2230XP Silica Analyzer Thermo Scientific Orion 19
NOTES:
1. It is recommended that you install an external sample shut off valve to
allow control while accessing or service to the sample chamber.
2. Air purging of upper and lower enclosures is recommended.
3. Each analyzer MUST have its own drain tube vented to atmosphere.
4. The installation of a power circuit breaker is highly recommended.
Plumbing Connections
Sample inlet, sample return and drain connections are made on the bottom side of the
instrument. The sample inlet and sample return fittings on the bottom of analyzer require ¼-in
OD (6 mm OD) flexible tubing. The drain fitting at the bottom of the analyzer requires ⅜ -in OD
(9.6 mm OD) flexible tubing. The air purge inlets require ¼-in OD tubing. The air purge supply
must be filtered externally and free of oil and any other particulates.
Figure 3: Typical external plumbing
connections
SAMPLE IN
SAMPLE RETURN
FLOW DIRECTION
FILTERED AND OIL FREE
AIR PURGE SUPPLY LINE
CONNECT TO
ATMOSPHERIC DRAIN
FLOW DIRECTION
SHUT-OFF
VALVE
AC MAINS
1
0
POWER CIRCUIT BREAKER
MUST BE CLEARLY IDENTIFIED
INSTALL HEIGHT TO
OPERATOR EYE LEVEL
PROCESS LINE
USER TO INSTALL A 40 to 60 MICRON
FILTER, SIZE IS BASED ON SAMPLE
CONDITION, SET FLOW RATE
BETWEEN : 50 TO 500 ML/MIN
AC POWER
SAMPLE CHAMBER
SAMPLE (BACK) N.C.
STANDARD (FRONT)N.O.
RGT1
RGT3
STD
RGT2 RGT3
DRAIN SAMPLE (INLET)
RGT1

Section 3 Installation Environmental Considerations
20 Thermo Scientific Orion 2230XP Silica Analyzer
DANGER
The ⅜ -in (9.6 mm) DRAIN MUST BE VENTED TO ATMOSPHERE. The
sample drain contains analysis wastes, which include both sample and
chemical reagents. Please check with local authorities concerning proper
disposal of waste from this product.
NOTES:
The enclosure drain produces no waste under normal use. However, in the
event of spills or leaks, some waste may be produced.
The analyzer is shipped with all of the internal tubing attached. Before
starting up the instrument, verify that the tubing lines are secured.
Installing Peristaltic Pump Head Tubing
Press the STOP key.
Disengage the U shape pressure plate of the pump head assembly by pressing with two fingers
and gently move upside as shown in Figure 6. Slide the tube fitting retainers at each side as
shown in Figure 5.
Replace the old tube by sliding off the barbed fitting. If necessary, clean the pump rollers.
Lubricate the tubing with a pea-sized quantity of silicone oil.
Fit the new tube and replace in the pressure plate. Note that the pressure plate sides must click
properly in the pump head assembly and align on both sides.
Figure 4: Internal tubing and valves
tube routing interconnections
SAMPLE
CHAMBER
VALVE 1
STANDARD
REAGENT 1 PUMP
SAMPLE IN
SAMPLE RETURN
REACTION CELL
TO DRAIN
TO CELL
SAMPLE & STANDARD PUMP
REAGENT 1
REAGENT 2 PUMP
REAGENT 2
REAGENT 3 PUMP
REAGENT 3
R1
R2 R3
VENT