Varian Archon Manuel utilisateur

Varian Analytical Instruments

2700 Mitchell Drive

Walnut Creek, CA94598-1675/USA

©Varian, Inc. 1999 Printed in U.S.A. 03-914642-00:6

Purge and Trap AutoSampler System

Operator’s Manual

03-914642-00:6 i

Contents

1 Introduction 1-1

1.1 Product Description 1-1

1.2 Design Features 1-2

1.3 Specifications 1-3

1.4 Component Description 1-3

1.4.1 Front Panel 1-3

1.4.2 Rear Panel 1-4

1.4.3 Interior 1-5

1.5 Vial Types 1-6

2 Site Preparation / Installation 2-1

2.1 Materials Needed 2-1

2.2 Unpacking the Archon 2-1

2.3 Parts and Materials Included in the Accessory Kit (DY-505224-90) 2-2

2.4 Lab and Bench Space Requirements 2-2

2.5 Gas Connections 2-3

2.6 Electrical Connections 2-4

2.7 Electronic I/O Signal Connections 2-4

2.7.1 Purge and Trap Sync Cable Connector 2-4

2.7.2 Personal Computer Connection 2-4

2.8 Water and Waste Lines Setup 2-4

2.8.1 Blank / Wash Bottle Setup 2-4

2.8.2 Waste Lines Setup 2-6

2.9 Sample Tray Setup 2-6

2.10 Sample Tray Coolant Setup (Optional) 2-7

2.11 Archon Soil Transfer Line Installation 2-7

2.11.1 Archon to Tekmar 3000 2-8

2.11.2 Archon to Tekmar 2000 2-14

2.11.3 Archon to OI 4560 2-18

2.12 Soil Helium Purge Gas Flow Adjustment 2-22

2.13 Loop Calibration for Internal Standard 2-23

2.14 Installation Checklist 2-23

3 Keypad Definition & Layout / Screen Display 3-1

3.1 General 3-1

4 Operation Keys 4-1

4.1 Auto Key 4-1

4.2 Manual / Priority Sample Key 4-2

4.2.1 Running a Priority Sample During an AutoRun. 4-2

4.3 Flush Key 4-3

4.3.1 Drain Sparge Tube 4-4

4.3.2 Flush Syringe 4-4

4.3.3 Rinse Sparge Tube 4-4

4.3.4 Backflush Water Probe 4-5

4.4 Pause / Stop Key 4-5

4.5 System Hold 4-5

5 Method Setup 5-1

5.1 Method Editing 5-1

5.2 Sample Method Parameters 5-1

5.3 Blanks After Vial Editing 5-5

5.4 Method Programming Guidelines 5-6

5.4.1 Water Method Program 5-6

5.4.2 Soil Method Program 5-6

5.4.3 Blank Method Program 5-7

5.5 Equilibrium Count and Equilibrium Time 5-7

5.6 Operating Sequence Steps 5-8

5.6.1 Water Sample Sequence 5-8

5.6.2 Soil Sample Sequence 5-10

5.6.3 Blank Sample Sequence 5-11

6 System Setup 6-1

6.1 Front Park 6-1

6.2 System Status 6-1

6.3 Maintenance 6-2

6.3.1 Standard Control 6-2

6.3.2 Adjust Counters 6-3

6.3.3 Shipping Position 6-3

6.3.4 Clean Syringe 6-4

6.3.5 Elevator up/down 6-4

6.4 System Calibration 6-4

6.4.1 Calibration Test 6-4

6.4.2 Auto Calibrate 6-5

6.4.3 Vial 22 Position 6-8

6.4.4 Water Probe Vial Position 6-8

03-914642-00:6 iii

6.4.5 Equilibrium Block 6-9

6.4.6 Knockoff Clearance 6-9

6.4.7 Standard Clearance 6-10

6.4.8 Manual Calibration: Coordinate Settings Menu Items 6-11

6.5 System Diagnostics 6-12

6.6 System Settings 6-14

6.7 System Options 6-16

7 Maintenance 7-1

7.1 Removal and Replacement of the Needle Sparge or SoilVial Probe 7-1

7.2 Removal and Replacement of the Water Probe 7-3

7.3 Cleaning the Soil Transfer Line Frit (PN DY-505599-00) 7-4

7.4 Replacement of the Water Line Screen (P/N DY-505598-00). 7-4

7.5 Replacement of the Soil Transfer Line (Nickel Line Only) (DY-505745-00) 7-4

7.6 Replacement of the Soil Purge Gas Needle (DY-505463-00) 7-5

7.7 Cleaning the Vial Gripper 7-5

7.8 Leak Check Helium Purge Gas Flow 7-5

7.9 Replacement of the Heated Upper Soil Valve 7-6

7.10 Sample Stir Motor Speed Adjustment 7-7

7.11 Drip Pan Cleaning 7-8

7.12 Cleaning or Replacing the Syringe Plunger O-ring 7-8

7.13 Cleaning the Internal Standard Valve and Lines 7-10

7.14 Installation of the Internal Standard Vials 7-11

7.15 Shipping Instructions 7-12

8 Remote I/O Cable Hookup Instructions 8-1

8.1 Archon to Tekmar LSC-2000 and 3000,P/N DY-505872-00 8-2

8.2 Archon to Tekmar 3000 with HP 5890, P/N DY-505869-00 8-3

8.3 Archon to Tekmar LSC 2000/3000 with Varian 3400/3600 8-4

8.3.1 Varian GC Motherboard Attachments – J16 and J32 8-5

8.3.2 J-16 Splitter DY-700030-00 8-5

8.3.3 J-23 Splitter DY-700031-00 8-5

8.4 Archon to Tekmar LSC 2000 / 3000 with HP 5895/96/85/87/88/92 8-7

8.5 Archon to Tekmar LSC 2000 / 3000 with HP 5890 w/5970/71/72 8-9

8.6 Archon to Tekmar LSC 2000 / 3000 to HP 6890, P/N DY-505873-00 8-10

8.7 Archon to OI 4460/4560 with HP 5890, P/N DY-505871-00 8-11

8.8 Archon to OI 4460 / 4560 with Varian 3400/3600, P/N DY-505870-00 8-12

8.9 Archon to OI 4460 / 4560 to HP 5890, RTE HP 1000 GC / MS Software 8-13

8.10 Archon to Tekmar 2000/3000 with Varian 3800, PN 03-925673-01 8-14

9 Error Code Screen Messages 9-1

10 Spare Parts and Service Information 10-1

11 Technical Assemblies 11-1

11.1 Front Panel 11-1

11.2 Syringe Plate 11-2

11.2.1 Internal Standard Valve Assembly 11-3

11.2.2 Mixing Solenoids / 26 mL Syringe Assembly 11-4

11.2.3 Probe Section 11-5

11.2.4 Vial Sample Stations 11-6

11.3 Interface / Transfer Line, Purge Gas Solenoid 11-7

11.4 Rear Panel 11-8

11.5 Robotic Arm 11-9

11.6 Interconnect Diagram 11-10

12 Flow Diagrams 12-1

03-914642-00:6 1-1

1 Introduction

1.1

Product Description

The Archon Purge and Trap AutoSampler is designed to automate the tedious

sample handling procedures associated with purge and trap analysis for volatile

organic compounds (VOC's) under current EPA methods. The Archon can be

used for drinking water, waste water, soil analysis, and solids. The Archon is

designed as a stand-alone unit for retrofit to purge and trap instruments.

The Archon is a state-of-the art robotic, X-Y-Z axis autosampler. The

AutoSampler utilizes a 51 position sample tray that allows water or soil samples

to be run. The tray can be cooled if an optional chiller kit is installed. The Archon

has a unique "gripper" arm which moves the sample vial to different positions that

will bar code read (optional), identify the vial type, stir the sample, equilibrate to

room temperature, and transfer the sample to the water or soil probe position.

When running soil samples, the Archon automates heated purge and trap. The

soil sample may be placed in the patented SoilVial, or if the Archon is setup for

needle sparging, a standard 40 mL VOC vial. A stirring bar (optional) is added,

the cap with a low bleed septum is replaced, and the entire vial placed in the

sample tray. The robotic arm transfers the vial to the vial identification step, and

then lifts the vial into the heated chamber where water is added, with one or both

standards, the sample is then purged directly onto the trap of the concentrator.

If a water sample is to be run, the sample is placed in a 40 mL VOC vial and a stir

bar (optional) is placed in the vial and the vial is placed in the tray. The Archon

robotic arm moves the vial to the vial ID station and then to the probe location

where it is lifted onto the sample probe, and a programmed volume of water is

transferred to the purge vessel. It is during the transfer that one or both of the

standards are added to the sample. It will also drain and clean the needle, sparge

tube, and transfer lines.

The operating modes of the Archon are the Automatic, Manual, and Flush

modes. Automatic mode allows for complete unattended operation. Manual mode

operation allows for single sample operation of the unit, priority sampling, and

running blanks. The Flush mode performs the flushing with hot water and helium

for the cleanup of the system. All modes perform per their programmed method.

The Archon is easily programmed through its own color-coded keypad.

Programming is menu driven and displayed on an LCD screen. Parameters can

be read and altered and the screen displays the function in progress during the

run.

The Archon interfaces directly with the Tekmar LSC 2000, 3000, OI 4460A, 4560

and other purge and trap units.

1-2

1.2

Design Features



Large 51 position removable sample tray for water or soil samples.



Runs blanks from its own blank/wash water reservoir.



Programmable sample dilution using blank H2O from reservoir, e.g., 0, 2, 5, 10, and 20,

directly from the 40 mL vial.



Water sample volumes programmable in 1-25 mL increments.



Programmable mechanical stirring of water samples containing sediment prior to

sampling.



All sample pathways are chemically inert, manufactured from PEEK®, Stainless Steel,

glass, or electroformed nickel.



Programmable dual standards allow for 1 or 2 different standards to be injected with the

sample, prior to purging.



Soil samples may be purged via needle sparge option utilizing disposable 40 mL vials or

by the patented SoilVial®.



The heated soil chamber can accept matrices consisting of solids, sludges, and liquids

from SoilVials or 40 mL EPA VOC vials.



Optional sample tray cooling capability. Optional refrigerated chiller is required.



Priority Sample feature allows the current analysis to be interrupted for RUSH samples.



Easily readable back lit LCD display.



Fast easy programming from the touchpad keyboard.



30 programmable methods may be stored for various method configurations.



A sample may be run from any position in the tray.



Easy hook up and installation to all purge and trap systems.



Back flushes the VOC soil probe pathway with line pressure helium.



Hot water rinse utilizes a cartridge heater to heat blank water to 90



C prior to flushing

sample pathways and the purge vessel.



Intelligently determines if a temperature zone exceeds its set point.



Archon utilizes a 5-position temperature equilibrium chamber that ensures samples are

equilibrated at room temperature prior to sampling.



Positively identifies programmed SoilVials and water vials prior to placement into

sampling positions.



A heated upper soil valve to eliminate cold spots in the sample pathway of samples

purged in the soil chamber.

Introduction

03-914642-00:6 1-3

1.3

Specifications

Tray Capacity: 51 sample vials. 40 mL EPA VOC or SoilVials

Sample Volume: 0-25 mL

Flush Volume: 0-25 mL

Indoor Use

Altitude: Up to 2000 m

Operating Temperature: 15



C to 35



C; Storage Temperature 5



C to 85



Relative Humidity: 10 to 90%

Line Voltage: 115 Vac



15%, 230 Vac



15%, 50/60 Hz



3 Hz

Fuse: 6A, 250 Vac, SB (115V); 3.15A, 250 Vac, T-Type (230V)

Installation Category: II

Pollution Degree: 2

Heat Dissipation: 2500 BTU/Hr. Max. Worst Case

Weight: Approximately 80 lbs; 36.5 Kilograms

Size: 21.5W x 17H x 20D inches

54.6W x 43.2H x 53.3D centimeters

Gas Requirements: Helium 60-90 PSI 99.999% GC/MS grade purity

1.4

Component Description

The Archon consists of a base unit with a 51 position sample tray. The sample

tray is removable from the front. A description of components follows.

1.4.1 Front Panel

Keypad & Screen: Keypad with LCD

screen. The keypad allows for

entering or editing all information. The

LCD screen displays the information.

Figure 1-1

1-4

1. Regulator: A regulator is provided for accurate

adjustment of the soil purge gas pressure and for

pressurizing the 40 mL vial during a water sample.

2. Pressure Gauge: A pressure gauge is located

above the regulator to monitor the purge gas and

to pressurize gas pressure.

3. Flow Controller: A flow controller is mounted on

the front panel to adjust the flow of purge gas

during the soil purge process.

4. Sample Tray Cover/ Door: The tray access cover

lifts up and locks to access the sample tray and

interior. The cover has a sensor mounted on the

right allowing the Archon to detect if the cover is

open. Additionally, there is a door at the bottom of

the Archon which allows the sample tray to be

removed / installed. Press the latch button and the

door will drop down.

PURGE GAS

PRESSURE

PURGE GAS FLOW

Figure 1-2

1.4.2 Rear Panel

Power Module: The power access module has a detachable power cord and

contains the incoming line fuse, power selector and voltage selector card.

Gas Input: A 1/8" Swagelok® bulkhead is used for He gas input ranged for 60-90

PSI.

Drain Line: The drain line is provided to attach to a waste bottle or a sink drain.

Remote I/O: All communication to the purge and trap and GC are made via the

25 pin, "D" connector. Custom built cables are designed for each purge and trap

system to ensure correct handshaking.

Remote RS-232: A 9 pin, RS-232 "D" Connector will allow for operation via a

computer with a Windows® compatible program.

Water Connections: A water input connection is provided for supplying blank

runs, flush rinses and dilutions. A gas connection pressures the water reservior

to aid in water delivery and to ensure water cleanliness.

PAT Purge Cut Off Valve: The Archon uses a valve to shut off the purge gas

supplied from the purge and trap concentrator during the soil purge. In this

mode, the Archon supplies the purge gas.

Sample Tray Coolant: The Archon will allow the sample tray to be cooled. An

optional recirculating bath (P/N DY-505627-00) must be purchased. Plumbing

connections for the bath are located on the lower, right rear side of the cabinet in

units shipped before March 1,1999. After that date, the plumbing kit

(DY-700085-90) must be purchased if a chiller option is installed. The liquid

coolant specifications are as follows: 10 PSI maximum pressure; temperature

range, -10



to 60



C; Coolant liquid, 50/50% mix Ethylene Glycol / water, or 100%

water.

Introduction

03-914642-00:6 1-5

1.4.3 Interior

Refer to Figure 1-3.

Sample Tray (not shown): A 51 position, all aluminum, sample tray is provided

to hold sample vials. The tray is removable, and when installed, rests on top of

the aluminum tray cooler for cooling the samples.

1. Robotic Arm: The robotic arm is used to move the sample vials. A vial

gripper is used to remove the vials from the tray and place them in the

appropriate sampling positions.

2. Water Probe: The water probe is a patented concentric needle to puncture

water vials, pressurize, and displace water samples to the syringe. After

sampling, the probe is rinsed in a chamber that prevents sample from

spraying onto the instrument components.

3. Soil Probe: The patented soil probe and the Needle Sparge probes

incorporate a "T" fitting design for attachment of water and heated transfer

line. The probe is installed in a heated oven and easily removable for

cleaning or replacement.

4. 26 mL Syringe: A 26 mL syringe is used to move sample, blank, flush and

waste water. The syringe is mounted upright, directly into the valve manifold.

Figure 1-3

5. Standard Valve: The standard injection station uses a 6 port valve with a 1

µL internal loop. The internal standard groove is filled by pressurizing the

standard reservoir and rotating the valve to positions 1 & 2, (Std. 1, Std.

2).Water samples or dilution water passes through the loop to deliver the

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