Campbell CVS4200, BVS4300 Instruction Manual

INSTRUCTION MANUAL

CVS4200 / BVS4300

Copyright © 2011- 2016

Campbell Scientific, Inc.

Stationary Samplers

Revision: 6/16

Limited Warranty

Subject to the following limited warranty, CVS4200 / BVS4300 Stationary
Samplers, with the exception of the refrigerator unit, are warranted for thirty­six (36) months. The refrigerator unit supplied with the CVS4200 / BVS4300
is warranted for twelve (12) months.

“Products manufactured by CSI are warranted by CSI to be free from defects in
materials and workmanship under normal use and service for twelve months
from the date of shipment unless otherwise specified in the corresponding
product manual. (Product manuals are available for review online at

www.campbellsci.com.) Products not manufactured by CSI, but that are resold

by CSI, are warranted only to the limits extended by the original manufacturer.
Batteries, fine-wire thermocouples, desiccant, and other consumables have no
warranty. CSI’s obligation under this warranty is limited to repairing or
replacing (at CSI’s option) defective Products, which shall be the sole and
exclusive remedy under this warranty. The Customer assumes all costs of
removing, reinstalling, and shipp ing defective Products to CSI . CSI will return
such Products by surface carrier prepaid within the continental United States of
America. To all other locatio ns, CSI will return such Products best way CIP
(port of entry) per Incoterms ® 2010. This warranty shall not apply to any
Products which have been subjected to modification, misuse, neglect, improper
service, accidents of nature, or shipping damage. This warranty is in lieu of all
other warranties, expressed or implied. The warranty for installation services
performed by CSI such as programming to customer specifications, electrical
connections to Products manufactured by CSI, and Product specific training, is
part of CSI's product warranty. CSI EXPRESSLY DISCLAIMS AND

EXCLUDES ANY IMPLIED WARRANTIES OF MERCHANTABILITY
OR FITNESS FOR A PARTICULAR PURPOSE. CSI here by disclaims,
to the fullest extent al lowed by applicable law, any and all warranties and
conditions with respect to the Products, whether express, implied or
statutory, other than those expressly provided herein.”

Assistance

Products may not be returned without prior authori zation. The following
contact information is for US and international customers residing in countries
served by Campbell Scientific , Inc. directly. Affiliate companies handle repairs
for customers within their territories. Please visit www.campbellsci.com to
determine which Campbell Scie ntific company serves your country.

To obtain a Returned Materials Authorization (RMA), contact CAMPBELL
SCIENTIFIC, INC., phone [phone]. Please write the issued RMA
number clearly on the outside of the shipping container. Campbell Scientific’s
shipping address is:

CAMPBELL SCIENTIFIC, INC.
RMA#_____
815 West 1800 North
Logan, Utah 84321-1784

For all returns, the customer must fill out a “Statement of Product Cleanline ss
and Decontamination” form and comply with the requi rements specified in it.
The form is available from our website at www.campbellsci.com/repair. A
completed form must be either emailed to [e-mail] or faxed to
[phone]. Campbell Scientific is unable to process any returns until we
receive this form. If the form is not received within three days of produc t
receipt or is incomplete, the product will be returned to the customer at the
customer’s expense. Campbell Scientific reserves the right to refuse service on
products that were exposed to contaminants that may cause health or safety
concerns for our employees.

Safety

DANGER — MANY HAZARDS ARE ASSOCIATED WITH INSTALLING, USING, MAINTAINING, AND WORKING ON OR AROUND

TRIPODS, TOWERS, AND ANY ATTACHMENTS TO TRIPODS AND TOWERS SUCH AS SENSORS, CROSSARMS, ENCLOSURES,
ANTENNAS, ETC. FAILURE TO PROPERLY AND COMPLETELY ASSEMBLE, INSTALL, OPERATE, USE, AND MAINTAIN TRIPODS,

TOWERS, AND ATTACHMENTS, AND FAILURE TO HEED WARNINGS, INCREASES THE RISK OF DEATH, ACCIDENT, SERIOUS
INJURY, PROPERTY DAMAGE, AND PRODUCT FAILURE. TAKE ALL REASONABLE PRECAUTIONS TO AVOID THESE HAZARDS.
CHECK WITH YOUR ORGANIZATION'S SAFETY COORDINATOR (OR POLICY) FOR PROCEDURES AND REQUIRED PROTECTIVE
EQUIPMENT PRIOR TO PERFORMING ANY WORK.

Use tripods, towers, and attachments to tripods and towers only for purposes for which they are designed. Do not exceed design limits.
Be familiar and comply with all instructions provided in product manuals. Manuals are available at www.campbellsci.com or by
telephoning [phone] (USA). You are responsible for conformance with governing codes and regulations, including safety
regulations , and the inte grity and location of structures or land to which towers, tripods, and any attachments are attached. Installation
sites should be evaluated and approved by a qualified engineer. If questions or concerns arise regarding installation, use, or
maintenance of tripods, towers, attachments, or electrical connections, consult with a licensed and qualified engineer or electrician.

General

• Prior to performing site or installation work, obtain required approvals and permits. Comply

with all governing structure-height regulations, such as thos e of the FAA in t he USA.

• Use only qualified personnel for installation, use, and maintenance of tripods and towers, and

any attachments to tripods and towers. The use of licensed and qualified contractors is highly
recommended.

• Read all applicable instructions carefully and understand procedures thoroughly before

beginning wor k.

• Wear a hardhat and ey e protection, and take other appropriate safety precautions while

working on or around tripods and towers.

• Do not climb tripods or towers at any time, and prohibit climbing by other persons. Take

reasonable precautions to secure tripod and tower sites from trespassers.

• Use only manufacturer recommended parts, materials, and tools.

Utility and Electrical

• You can be killed or sustain serious bodily injury if the tripod, tower, or attachments you are

installing, constructing, using, or maintaining, or a tool, stake, or anchor, come in contact with
overhead or underground utility lines.

• Maintain a distance of at least one-and-one-half times structure height, 20 feet, or the distance

required by applicable law, whichever is greater, between over head utility lines and the
structure (tripod, tower, attachmen ts, or tools).

• Prior to performing site or installation work, inform all utility companies and have all

underground utilities marked.

• Comply with all electrical codes. Electrical equipment and related grounding devices should be

installed by a licensed and qualified e le c trician.

Elevated Work and Weather

• Exercise extreme caution when performing elevated work.

• Use appropriate equipment and safety practices.

• During installation and maintenance, keep tower and tripod sites clear of un-trained or non-

essential personnel. Take precautions to prevent elevated tools and objects from dropping.

• Do not perform any work in inclement weather , including wind, rain, snow, lightnin g, etc.

Maintenance

• Periodically (at least yearly) check for wear and damage, including corrosion, stress cracks,

frayed cables, loose cable clamps, cable tightness, etc. and take necessary corrective actions.

• Periodically (at least yearly) check electrical ground connections.

WHILE EVERY ATTEMPT IS MADE TO EMBODY THE HIGHEST DEGREE OF SAFETY IN ALL CAMPBELL SCIENTIFIC PRODUCTS,
THE CUSTOMER ASSUMES ALL RISK FROM ANY INJURY RESULTING FROM IMPROPER INSTALLATION, USE, OR
MAINTENANCE OF TRIPODS, TOWERS, OR ATTACHMENTS TO TRIPODS AND TOWERS SUCH AS SENSORS, CROSSARMS,
ENCLOSURES, ANTENNAS, ETC.

Table of Contents

PDF viewers: These page numbers refer to the printed version of this document. Use the
PDF reader bookmarks tab for links to specific sections.

1. Introduction ................................................................ 1

2. Precautions ................................................................ 1

3. Initial Inspection ......................................................... 2

4. QuickStart ................................................................... 2

4.1 Cabinet Positioning .............................................................................. 2

4.2 Attach Intake Hose ............................................................................... 3

4.3 Wiring .................................................................................................. 4

4.3.1 CVS4200 Wiring Procedure ......................................................... 4

4.3.2 BVS4300 Wiri n g Procedure ......................................................... 5

4.4 Program the Sampler ............................................................................ 5

4.4.1 Automatic Sampling Program ....................................................... 5

4.4.2 Taking a Manual Sample .............................................................. 6

4.4.3 Viewing Program Parameters ....................................................... 7

4.4.4 Setting Programming Paramete rs Individually ............................. 7

4.5 Installation Checklist............................................................................ 7

5. Product Overview ....................................................... 7

5.1 Components ......................................................................................... 9

5.1.1 BVS4300 Sampler Components ................................................... 9

5.1.2 CVS4200 Sampler Components ................................................. 11

5.1.3 Sampler Vacuum System Components ....................................... 13

5.2 Sample Container Options ................................................................. 15

5.3 Discrete and Composite Overview ..................................................... 15

5.3.1 Discrete Sampling ....................................................................... 15

5.3.2 Composite Sampling ................................................................... 16

5.4 Sinker / Strainer ................................................................................. 16

5.5 Special Systems ................................................................................. 17

5.5.1 5/8 in. Systems ............................................................................ 17

5.5.2 Sanitary Systems – Teflon and Glass .......................................... 18

5.5.3 Pressurized Source ...................................................................... 18

6. Specifications ........................................................... 21

6.1 BVS4300 Outdoor Stationary Sampler Specificatio ns ...................... 22

6.2 CVS4200 Indoor Stationary Sampler Specifications ......................... 23

6.3 Controller Specifications .................................................................... 23

6.4 Vacuum System Specifications .......................................................... 25

6.5 Sample Transport Velocit y ................................................................ 25

6.5.1 Using Velocity to Calculate Purge Time .................................... 27

6.5.2 Horizontal/Vertical Combinations .............................................. 27

7. Operation .................................................................. 27

i

Table of Contents

Use in Adve rse Conditio ns ................................................................ 27

7.1

7.1.1 Exhaust ....................................................................................... 27

7.1.2 Instrument Air ............................................................................ 27

7.1.3 Freezing Conditions ................................................................... 28

7.2 Power Line/Wiring Consideratio ns ................................................... 28

7.3 Operating Sequence ........................................................................... 29

7.3.1 Sampling Sequence .................................................................... 29

7.3.2 Line Voltage Failure .................................................................. 30

7.4 Operating Instructions ....................................................................... 30

7.4.1 Sample Volume Adjustments ..................................................... 30

7.4.2 Liquid Sensing Rod .................................................................... 31

7.5 Battery ............................................................................................... 31

7.5.1 Charging 12 Vdc Battery and Reverse Polarity Protection ........ 31

7.5.2 Sampler Controller Backup Battery ........................................... 32

7.6 Programming ..................................................................................... 33

7.6.1 Guidelines .................................................................................. 33

7.6.1.1 Flashing Text ................................................................... 33

7.6.1.2 Real Time Clock .............................................................. 33

7.6.1.3 Total Bottles .................................................................... 33

7.6.2 Touchpad Keys........................................................................... 34

7.6.3 General Terms ............................................................................ 36

7.6.4 Programming START DELAY .................................................. 38

7.6.4.1 START DELAY Overview ............................................. 38

7.6.4.2 START DELAY using Time/Day ................................... 39

7.6.4.3 START DELAY using P ulse Input ................................. 41

7.6.4.4 START DELAY using 4-2 0mA Input ............................. 42

7.6.4.5 START DELAY using External Conta ct ......................... 43

7.6.4.6 START DELAY using Le vel Control ............................. 44

7.6.5 Programming SAMPLE INITIATION ...................................... 46

7.6.5.1 SAMPLE INITIATION Overview .................................. 46

7.6.5.2 SAMPLE INITIATION using Interval Time .................. 47

7.6.5.3 SAMPLE INITIATION using Pulse Input ...................... 48

7.6.5.4 SAMPLE INITIATION using 4-20mA Input.................. 50

7.6.5.5 SAMPLE INITIATION using External Contact ............. 51

7.6.6 Programming PROG RAM TYPE .............................................. 52

7.6.6.1 PROGRAM TYPE Overview .......................................... 52

7.6.6.2 PROGRAM TYPE - Composite ...................................... 53

7.6.6.3 PROGRAM TYPE - Daily Cycle .................................... 55

7.6.6.4 PROGRAM TYPE - Daily Cycle for Dual Station ......... 56

7.6.6.5 PROGRAM TYPE - Consecutive ................................... 58

7.6.6.6 PROGRAM TYPE - Multi-Composite ............................ 60

7.6.6.7 PROGRAM TYPE - Timed Step ..................................... 61

7.6.7 Programming OTHER OPTIONS .............................................. 63

7.6.7.1 OTHER OPTIONS Overview ......................................... 63

7.6.7.2 OTHER OPTIONS - Clock ............................................. 65

7.6.7.3 OTHER OPTIONS - Purge Time .................................... 66

7.6.7.4 OTHER OPTIONS - Pinch Valve ................................... 68

7.6.7.5 OTHER OPTIONS - Fault Shutdown ............................. 69

7.6.8 Viewing Information .................................................................. 70

7.6.8.1 Viewing Programmed Information .................................. 70

7.6.8.2 Viewing Generated Information ...................................... 73

7.7 Test Procedure ................................................................................... 74

8. Troubleshooting ....................................................... 74

ii

Table of Contents

9. Maintenance ............................................................. 75

9.1 General Maintenance ......................................................................... 75

9.2 Maintenance of Refrigerator .............................................................. 76

9.2.1 Cleaning ...................................................................................... 76

9.2.2 Temperature Control ................................................................... 76

9.3 Testing System Vacuum .................................................................... 76

9.4 Controller Battery Replacement Procedure ........................................ 77

9.5 Storage ............................................................................................... 77

Appendices

A. Principles of Operation .......................................... A-1

B. Parts List ................................................................ B-1

C. Programming 4-20mA for Flow Proportional

Sampling............................................................... C-1

Figures

Tables

4-1. Sampler in stalla tion.............................................................................. 3

4-2. Te rminal block wiring diagram ............................................................ 4

5-1. Diagrams of the BVS4300 basic unit ................................................... 9

5-2. Diagrams of the CVS4200 basic unit ................................................. 11

5-3. Dia gram of the CVS/BVS vacuum system ........................................ 13

5-4. Discrete r emovable bottle tray (24 bottles) ........................................ 16

5-5. Composite two gallon bottle with lid ................................................. 16

5-6. 3/8 inch intake hose with lead sinker (pn 27949) ............................... 17

5-7. Stainless-steel strainer (pn 28442) ..................................................... 17

5-8. Vertical loop for pressurized source................................................... 19

5-9. Flow-through chamber for pressurized source ................................... 20

7-1. Battery performance curve ................................................................. 32

5-1. BVS4300 Component Descriptions ................................................... 10

5-2. CVS4200 Sampler Component Descriptions ..................................... 12

5-3. Vacuu m System Component Descrip tions ......................................... 14

5-4. Sample Container Options ................................................................. 15

5-5. Sanitary System Changes ................................................................... 18

6-1. BVS4300 Sampler Specifications ...................................................... 22

6-2. CVS4200 Sampler Specifications ...................................................... 23

6-3. Controller Specifications .................................................................... 23

6-4. Controller Specifications .................................................................... 24

6-5. Vacuu m System Specificatio ns .......................................................... 25

6-6. Vertical Ve locity ................................................................................ 25

6-7. Horizontal Lift ................................................................................... 26

7-1. Touchpad Button Descriptions ........................................................... 34

B-1. CVS/BVS Repla cement Parts .......................................................... B-1

iii

CVS4200 / BVS4300 Stationary
Samplers

1. Introduction

The CVS4200-series and BVS4300-series Stationary Samplers are automatic
liquid samplers for water and waste water applications. They use reliable, lo ng­lasting, vacuum technology. This sampling method results in faster sa mple
draws and less disturbance of the sample contents. There is also less wear on
the tubing, resulting in less-frequent mai nt ena nc e.

Campbell Scientific offers the following stationary samplers:

• CVS4200C—composite indoor sampler

• CVS4200D—discrete indoor sampler

• BVS4300C—composite outdoor sampler

• BVS4300D—discrete outdoor sampler

Composite samplers deposit all samples into a single container. Discrete
samplers place each sample into a separate container.

2. Precautions

Before installing the water sample r, please study:

• Section 2, Precautions

• Section 3, Initial Inspection

• Section 4, QuickStart

• A noise free or clean line from primary power is highly recommended to

supply the sampler.

• Never run the sampl er’s power wiring in conduit containing phone lines or

power wiring of other devices.

• If possible, site the sampler away from ac power lines.

• Use a BVS4300 with a factory installed heater (option -H) and an

insulated cabinet (option -3) if the sampler will be located outdoor s in
freezing conditions. Refer to Section 7.1, Use in Adverse Conditions
for more information.

• In extreme cold conditions, insulate or heat the intake hose. If the hose is

positioned mostly vertical, the most prone point of freezing is where the
hose enters the frozen water source.

(p. 1)

(p. 2)

(p. 2)

(p. 27),

• Use a BVS4300 with the cabinet circula tion fan (option -G) if the sampler

will be placed directly in the sun. This keeps the refrigeration unit from
getting overtaxed.

1

CVS4200 / BVS4300 Stationary Samplers

CAUTION

NOTE

• The intake hose should be 7.6 m (25 ft) or longer. Shorter hoses do not

provide sufficient back pressure to the metering chamber, allowing the
pump to efficiently expel all solids into the sampler container.

• Under adverse atmospheric conditions (humid, corrosive, etc.), connect air

to the BVS4300 and use it to purge the cabinet—providing clean air for
the pump intake.

Failure to purge the c abinet m ay damage the sampler and
void the warranty (see Section 7.1, Use in Adverse
Conditions

• Vent the exhaust outdoors if detr imental air conditions exist in the sample

lines of a CVS4200 sampler (see Section 7.1, Use in Adverse Conditions

27)

, for more information).

3. Initial Inspection

• Upon receipt of the CVS4200 or BVS4300, inspect the packaging and

contents for damage. File damage claims with the shipping company.

(p. 27), for more information).

(p.

4. QuickStart

4.1 Cabinet Positioning

• Immediately check package contents against the shi pping documentation.

Contact Campbell Scientific ab out any discrepancies.

Please refer to Section 7.1, Use in Adverse Conditions (p. 27), if the sampler is
used under adverse atmo s pheric conditions such as extreme humidity.

Install the sampler as close as po ssib le to the sampling site with a minimum of
10 cm (4 in) of air space around the cabinet (see FIGURE 4-1). Level and
secure the unit.

Sampler must be locat ed a bove sam ple s ourc e, or liqu id will flood
the machine. For situations where this is not possible, please
contact Campbell Scientific for solutions on pressurized sources.

2

CVS4200 / BVS4300 Stationary Samplers

FIGURE 4-1. Sampler installation

4.2 Attach Intake Hose

1. Connect the intake hose to the sampler’s volume control tube (item 1 in
FIGURE 5-1 or FIGURE 5-2).

a. If using the 26925-L PVC Intake Hose with option -QD, attach the

hose using the quick deploy connector.

b. Otherwise, place the hose in warm water for a few minutes. Slip the

hose over the volume control tube and secure the hose using the
clamp.

2. Route the hose so that it has a near continuous slope from the sampler to
the source liquid. This keeps hose clear and fully drained.

3. Place sinker/strainer in source liquid. The sinker/strainer needs to be
placed at a depth in which it will remain submerged regardless of the flow
velocities.

3

CVS4200 / BVS4300 Stationary Samplers

NOTE

4.3 Wiring

1 LINE
2 NEUTRAL
3 GROUND
4
5 FAULT
6 DC V (+)
7 FULL
8 4-20 mA (+)

9 4-20 mA (-)
10 COUNT IN
11 COMMON GND
12 EXT START
13 COMMON GND
14 EXT. STOP
15 STATUS(+)
16 STATUS(–)
17 BATTERY(+)
18 BATTERY(–)

CVS/BVS TB-1 STD

FIGURE 4-2. Terminal block wiring diagram

4.3.1 CVS4200 Wiring Procedure

1. Remove the hood from chassis. The terminals for field connections are
located along the back of the tray (11 on FIGURE 5-2). If the sampler has
been provided with a refrigerator, the power plug is also located here.

2. Route cabling from external devices through the clearance holes and
connect to the terminal block (see FIGURE 4-2).

Use shielded cables for wiring remote/external functions and
terminate the shield at the AC ground terminal on the sampler
main terminal block, or at the remote site, but not both.

4

3. Bring power from main distribution pa nel along a path that does not
parallel any existing power wiring to motors, solenoids, or contactors.
When sampler power line must cross existing power lines, do so at right
angles.

4. Replace hood.

4.3.2 BVS4300 Wiring Procedure

NOTE

1. Remove four retaining bo lts (1/4–20) found across the top of the
instrument panel (18 in FIGURE 5-1).

2. If the sampler is refrigerated, make sure the discharge tubing and container
full wiring (if so equipped) are extracted from the fridge.

3. Slide out instrument section. The drawer glides that the sampler chas si s is
mounted on are designed to fully extend from the cabinet.

4. Route cabling from external devices through the 2.75 inch conduit knock­outs and connect to the terminal block (see FIGURE 4-2). The terminals
for field connection are located along the side at the rear of the tray.

Use shielded cables for wiring remote/external functions and
terminate the shield at the AC ground terminal on the sampler
main terminal block, or at the remote site, but not both.

5. Bring power from main distribution pa nel along a path that does not
parallel any existing power wiring to motors, solenoids, or contactors.
When sample r power lines must cross existing power lines, do so a t right
angles.

CVS4200 / BVS4300 Stationary Samplers

6. Ensure that the wiring harness will not rub or catch in the slide
mechanisms before sliding the instrument section back into the cabinet.

7. Replace the four retaining bolts. Although not r equired for operation, use
of these retaining bolts reduces the effects of vibration that occur when the
sampler is cycling.

4.4 Program the Sampler

4.4.1 Automatic Sampling Program

To begin a new, quick pro gram:

Press “SET”

Press “NEW ENTRIES”. Press “ENTER”

START DELAY (how you will be delaying the
sample program until certain external conditions
are met). Select, using arrows, which parameter
you would like, and adjust settings (see Section

7.6.4, Programming START DELAY

Options: DISABLE; TIME/DAY; PULSE
INPUT; 4-20mA INPUT; EXTERNAL
CONTACT; LEVEL CONTROL.

(p. 38)).

5

CVS4200 / BVS4300 Stationary Samplers

To take a sample manually, simply press the

Press “ENTER” twice

SAMPLE INITIATION (parameters for
frequency of samples). Select, using arrows,
which parameter you woul d like, and adjust
settings (see Section 7.6.5, Programming
SAMPLE INITIATION
INTERVAL TIME; PULSE INPUT; 4-20mA
INPUT; EXTERNAL CONTACT.

Press “ENTER” twice.

PROGRAM TYPE (which type of sampling
program). Select, using arrows, which parameter
you would like, and adjust settings (see Section

7.6.6, Programming PROGRAM TYPE

Options: COMPOSITE; MULT I-COMPOSITE;
CONSECUTIVE; DAILY CYCLE; TIMED
STEP (override).

(p. 46)). Options: DISAB LE;

(p. 52)).

Press “ENTER” twice.

PURGE TIME (set how long sampler will purge
between samples, minimum of 10 seconds). Using
# keys, enter the purge time needed for application
(e.g., 100 ft draw at 5 ft/sec = 20 sec). Press
“ENTER”.

Press “RESTART” twice.

Sampling is ready to go.

4.4.2 Ta king a Manual Sample

“Manual Sample” button twice. Manual
samples will not interrupt the current
automatic sampling program.

6

CVS4200 / BVS4300 Stationary Samplers

To view the program or remaining time,

To modify any of the settings individually,

4.4.3 Viewing Program Parameters

press the “VIEW” button, followed by the
button representing what you want to se e;
for example, “REMAINING TIME”.

4.4.4 Setting Programming Parameters Individually

press the “SET” button followed by the
appropriate button based on what parameter
is being changed.

4.5 Installation Checklist

Check the following items prior to use of sampler:

1) Sampler is mounted securely and level.

2) Intake Hose: – Free of kinks .
– Properly installed into liquid.
– Properly connected to volume control tube on
metering chamber.

3) Discharge hose : – Free of kinks.
– Natural downward slope to sample container.
– Properly connected to (or in) sample container.

4) Proper exhaust and instrument air connections (see Section 7.1, U se in
Adverse Conditions

5) Power requirements: – Check terminal strip connections.
– Test all outside sources of sampler c ontrols.

5. Product Overview

The BVS4300 and CVS4200 Stationary Samplers are automatic liquid
samplers for water and wastewater applications. CVS/BV S Sa mplers are
capable of gathering fluid automati cally fro m a variety of sources, including
containers, open channels, sewers, pipes, and any open source of water.

Samplers are designed for reliable, unattended sample collection. Refrigerated
units will keep the temperature o f the deposited liquid at 4 °C (39.2 °F) until
the samples are gathered and brought back to the laboratory for analysis.

(p. 27)).

There are a variety of methods for depositing samples. Composite sampling is
used where samples are deposited, over time, into one container. Discrete
systems are used when multiple bottles are needed. These are also called
“sequential” systems, and inv olve a stepper with distributor ar m which
dispenses the liquid into a bottle, then moves to the next bottle.

7

CVS4200 / BVS4300 Stationary Samplers

Operating temperature for CVS4200 indoor samplers is 10 to 50 °C (50 to 122
°F), adaptable down to 0 °C (32 °F) upon request. The ope rating temperature
for BVS4300 outdoor samplers with heater and insulation is –40 to 50 °C (–40
to 122 °F). Without insulation and heater, the BVS4300 operating temperature
is 0 to 50 °C (32 to 122 °F).

Samples can be triggered by a variety of means. The internal clock on the
controller can be set to sample based on time/day (for example, sample every
hour). There are also a variety of external inputs that can be connected to
control sampling. Pulse count is useful for sampling after a certain number of
pulses have been reached (for example, using a rain gauge to trigger sampling).
The 4-20mA option is useful for flow-based sampling (for example, using a
flow meter to trigger sampling after a certain volume of water has passed by).
External contact is used to contr ol the sampler from another datalogger, and is
useful when full externa l control is d esired. Level control is the option to
choose whe n the application has starts and stops (for example, using a float
switch to trigger sampling when water is p resent, then stop sampling when the
water drops below the set level).

When sampling is initiate d, liquid travels throu gh the intake tube into the
metering c hamber. The amount of water taken is set mechanically using the
liquid sensing rod and the volume control tube, which means sample accuracy
is precise every time, usually within ±2% or ±2 ml.

Once the pre-set amount has been reached, all excess liquid is purged from the
system, and the sample is dropped into a container. Sample containers range
from 500 ml (500 cc or 2 cups) wedges in discrete systems, up to 20 liters (5
gallons) containers for composite systems.

Intake tube is offered in either 9.5 mm (3/8 in) ID or 15.9 mm (5/8 in) ID.
Transport velocity varies de pending on height and distance being sampled. For
most situations the sampler pulls at over 1.5 m s
speed chart, refer to Section 6.5, Sample Transport Velocity

–1

(5 ft s–1). For an in-depth

(p. 25).

8

5.1 Components

63.0”

(1600 mm)

5.1.1 BVS4300 Sampler Components

CVS4200 / BVS4300 Stationary Samplers

FIGURE 5-1. Diagrams of the BVS4300 basic unit

9

CVS4200 / BVS4300 Stationary Samplers

TABLE 5-1. BVS4300 Component Descriptions

Number

Item

Description

1

Intake Hose Connection

The volume control tube is where the intake hose is connected

5-3).

2

Multi-Function Input
Controller

This is where sampler is controlled and programmed.

3

Signal Lights and Control

The optional top light (green) indica tes sampler is running. The

while leaving power to the sampler.

4

Metering Chamber

This chamber is where the sample liq uid is drawn into before

lowered to the sample volume desired.

5

Pinch Valve

This valve shuts during sampling, and then releases once
desired liquid has entered the chamber.

6

Instrument Tray Rollers

Control section of sampler can be easily rolled out for wiring
and maintenance.

7

Breaker Switches

All samplers have an on/off switch. Other options for switches
include fridge and heater.

8

Discharge Tube

The sample liquid is released via the pinch valve to the sample

provided lid.

9

Container Lid

The special lid provided fastens the discharge tube to the
sample container. Weight prev ents tube dislocation.

10

Sample Container(s)

The container(s) that the sample is deposited in can be made

multiple containers.

11

Cabinet Circulation Fan

Optional fan for hot weather climates, prolongs the life of
refrigerator. If no fan is present, this space will be solid.

12

Louvers

Vents for ensuring proper ventilation in cabinet.

13

Pump Exhaust Connection

If the sample fluid is corrosive, the pump exhaust air can be

in most conditions.

14

Instrument Air Connection

In corrosive environments, instrument air can be brought in

adapter. This is unnecessary in most environments.

15

Instrument Panel

Instrumentation is mounted on this pa nel.

16

Instrumentation Section

All instrumentation and wiring, incl uding pump, are located in
this section of the sampler, prote c te d from outside elements.

17

Field Wiring Terminals

Terminal block for field wiring is loca te d on the back of the
instrument tray

18

Instrument Tray

This tray can be rolled out by unscrewing the four bolts at the
top of the panel, and gliding it out on the rollers.

19

Enclosure

Cabinet for entire sampler is powder-coated steel or optional
stainless steel.

20

Mounting Feet

Brackets have holes for screwing sampler into a fixed location.

21

Installation Holes

Put bolts through these holes into a so lid surface to stabilize
sampler.

to the sampler. This stainless steel tube is r a ised or lowered
manually using fitting to set the sample volume (see

FIGURE

Switch

second light (red) indicates reverse polarity if external battery
is being used. The toggle switch turns on/off the controller

dropping i nto the final container. The rods inside are raised and

container(s) below. With composite ( single container) units the
amount of built-up pressure may cause discharge tube to come
out of the container, so it is advisable to fasten it using the

from a variety of materials, shapes, and sizes. In discrete
samplers, there is a distributor a rm that deposits samples into

10

sent to a separate location through this connector; unnecessary

from another source, prolonging t he life of the instrumentation
components. Tubing would be hooked up to the provided

5.1.2 CVS4200 Sampler Components

CVS4200 / BVS4300 Stationary Samplers

FIGURE 5-2. Diagrams of the CVS4200 basic unit

11

CVS4200 / BVS4300 Stationary Samplers

TABLE 5-2. CVS4200 Sampler Component Descriptions

Number

Item

Description

1

Intake Hose Connection

The volume control tube is where the intake hose is connected

5-3).

2

Multi-Function Input
Controller

This is where sampler is controlled and programmed.

3

Signal Lights and Control

The optional top light (green) indica tes sampler is running. The

while leaving power to the sampler.

4

Metering Chamber

This chamber is where the sample liq uid is drawn into before

lowered to the sample volume desired.

5

Pinch Valve

This valve shuts during sampling, and then releases once
desired liquid has entered the chamber.

6

Breaker Switches

All samplers have an on/off switch. Other option for switch is
for fridge.

7

Discharge Tube

The sample liquid is released via the pinch valve to the sample

provided lid.

8

Container Lid

The special lid provided fastens the discharge tube to the
sample container. Weight prev ents tube dislocation.

9

Sample Container

The container that the sample is deposited into can be made

are 2 or 5 gallon high density polyethylene (HDPE).

10

Instrumentation Section

All instrumentation and wiring, incl uding pump, are located in
this section of the sampler, prote c te d from outside elements.

11

Field Wiring Terminals

Terminal block for field wiring is loca te d on the back of the
instrument tray

12

Refrigerator – Small

Composite samplers have a smaller refrigerator by default.

13

Pressure Gauge

Optional pressure gauge is useful for moni t oring

discovering leaks.

14

Stepper Motor and Bracket

Installed directly onto roof of refriger a tor, this bracket is lined

bottle.

15

Distributor Arm

Stainless steel arm delivers liquid samples to the discrete
bottles.

16

Discrete Bottles

Diagram shows 24 wedge bottle arrangement. Any

inside the limited space (for example, 2 x 2 gallon containers).

17

Removable Bottle Tray

Some arrangements incl ude a removable tray with handles for
easy swapping of bottles (24 bottle and 8 bottle options only).

18

Bottle Seating Template

With removable bottle tray, a cir c ular guide and bolt lock holds

template includes seating guides for e a c h b ottle individually.

19

Refrigerator - Large

Discrete samplers have a large glass-door refrigerator with
digital thermostat display.

to the sampler. This stainless steel tube is r a ised or lowered
manually using fitting to set the sample volume (see

FIGURE

Switch

second light (red) indicates reverse polarity if external battery
is being used. The toggle switch turns on/off the controller

dropping i nto the final container. The rods inside are raised and

container(s) below. With co mposite (single container) units the
amount of built-up pressure may cause discharge tube to come
out of the container, so it is advisable to faste n it u sing the

from a variety of materials, shapes, and sizes. Standard bottles

12

vacuum/pressure status, i.e. for checking plugged lines and

up to deliver samples uniformly to multiple bottles. The
stepper moves the distributor arm after sampling the previous

arrangement o f bottles is possible that is factors of 24 and fits

tray in its precise location. With other bottle arrangements, the

CVS4200 / BVS4300 Stationary Samplers

5.1.3 Sampler Vacuum System Components

FIGURE 5-3. Diagram of the CVS/BVS vacuum system

13

CVS4200 / BVS4300 Stationary Samplers

TABLE 5-3. Vacuum System Component Descriptions

Number Item Description

1 Solenoid Valves Control the air flow from pump to sampler, either purging or

sucking.

2 Pump Located behind a sheet of metal, the pump does not come into

contact with any liquid whatsoever . It does all the drawing and

purging thr ough using a vacuum and co mpressor.
3 Touchpad Controller Controls sampler program and offers status feedback on LCD.
4 Sample Distributor Rotates distributor arm between multiple discrete containers.
5 Distributor Arm Dispenses liquid from metering chamb e r into discrete

container.
6 Discrete Sample Containers Multiple containers. Any arrangement of bottles is possible

3

that is factors of 24 and fits inside the 5 ft

refrigeration unit.

7 Pressure Gauge Visual ly describes sampling process in terms of

vacuum/pressure. Useful for troubleshooting a plugged/kinked

line, or signals leaks. Optional.
8 Liquid Sensing Rod This rod must remain above the volume control tube. When

the sample liquid comes into contact with the two rods, it

signals the c ontroller to s top samplin g and begin purging.
9 Barrier Valve Prevents metering chamber overflow in case the liquid sensing

rod fails (for example, completely coated with oils/grease).
10 Volume Control Tube Mechanically set the volume required for sample by using a

wrench on the fitting at the base of this stainless steel tube.
11 Metering Chamber Sample is drawn into chamber up to le vel set by volume

control tube, then line is purged, followed by dropping sample

into containers. Metering Chambers come in glass or acrylic,

from 250 cc to 1,000 cc.
12 Pinch Valve This valve shuts during sampling, then opens duri ng s ampling

to drop sample into container, then closes to purge hose.
13 Cap with “Container Full” Shut-

off

Optional cap contains Overflo w Protection Probes which

signal the sampler to halt when co ntainer is full. Can be

installed in maximum two container s, or into a discrete bottle

tray.
14 Composite Sample Container A single container to ho ld sample liquid. Can be used with

smaller refrigerator.
15 Intake Hose Standard samplers come with 7.6 m (25 ft) of 3/8 inch ID

PVC tube.
16 Sinker. Optional Strainer. Keeps the end of the intake tube in the source liquid. Optional

strainer can raise collection point above sinker.

14

5.2 Sample Container Opti ons

TABLE 5-4. Sample Container Options

Feature Description

CVS4200 / BVS4300 Stationary Samplers

Composite (single)
containers

Discrete (multiple)
containers

9 liter (2.3 US gallon) Nalgene
9 liter (2.3 US gallon) Nalgene with overflow
20 liter (5 US gallon) Nalgene
20 liter (5 US gallon) Nalgene with overflow
10 liter (2.5 US gallon) Glass
10 liter (2.5 US gallon) Glass with overflow

0.5 liter Plastic [24 bottles]
1 liter Glass [12 bottles]
2 liter Glass [8 bottles]
4 liter Glass [4 bottles]
10 liter (2.5 US gallon) Gla ss [ with and without

overflow]
9 liter (2.3 US gallon) Nalgene
9 liter (2.3 US gallon) Nalgene with overflow
20 liter (5 US gallon) Nalgene
20 liter (5 US gallon) Nalgene with overflow

5.3 Discrete and Composite Overview

5.3.1 Discrete Sampling

Discrete sampling is sampling wherein samples are taken into more than one
container. Inside of the refrigerator (or cooling chamber on portable sampler
units) is a stepper assembly which revolves 360° and delivers samples into
separate containers, ranging from 2 to 24 bottles. Discrete sampling is
beneficial in situations where change over time needs to be measured, such as
measuring different water characteristics over 24 hours. Labs and monitoring
personnel tend to rely on discrete portable sampling.

15

CVS4200 / BVS4300 Stationary Samplers

FIGURE 5-4. Discrete removable bottle tray (24 bottles)

5.3.2 Compos ite Sampling

Composite sampling is for drawing wate r samples into one large container.
This is the simplest way of taking sample s and typical for most situations
where a sampler is set up to measure effluent in one location. It is also
significantly less expensive than d iscrete sampling.

16

FIGURE 5-5. Composite two gallon bottle with lid

5.4 Sinker / Strainer

The intake hose includes either a lead sinker or stainless-steel sinker/strainer.
The sinker or sinker/stra iner is intended to keep the sa mple line fully
submerged i n the source l i quid. The stainless-steel sinker/st rainer should be
used in samples with material that may clog up a normal sinke r, or where the
standard sinker could stir up bottom sediment.

CVS4200 / BVS4300 Stationary Samplers

FIGURE 5-6. 3/8 inch intake hose with lead sinker (pn 27949)

FIGURE 5-7. Stainless-steel strainer (pn 28442)

5.5 Special Systems

5.5.1 5/8 in. Systems

In applications with large partic le s o r materials in the source liquid, a 5/8 in. ID
system will help prevent clogging. The added diameter adds 66% more volume
to the entire system.

For a sampler to increase to a 5/8 in. ID, the following parts and components
are changed to allow for more volume: intake tube, volume control tube, all
fittings, metering chamber, metering chamber lid, discharge tube, sa mple
container cover, and sinker or strainer. The 5/8 in. system is only offered for
our composite samplers.

17

CVS4200 / BVS4300 Stationary Samplers

TABLE 5-5. Sanitary System Changes

NOTE

5.5.2 Sanitary Systems – Teflon and Glass

In applications wherein the water sample must be prevented from coming into
contact with any plastics, a sanitary system is recommended. For example,
when testing for acid/base/neutral extractable organics and pesticides, the
sanitary system will keep the final sample clean from any contaminants.

The sanitary system includes changing all “wetted” component s of the
sampling system (that is, everything t hat c omes in contact with the final
sample). TABLE 5-5 outlines the key c hanges made to the sampler for a
sanitary system.

Component Standard Material Sanitary System Material

Intake Tube PVC Teflon-Lined PVC
Sinker/Strainer Lead Sinker Stainless Steel Sinker/Strainer
Fittings Brass Stainless Steel
Metering Chamber Acrylic Pyrex
Metering Chamber Cover Delrin Teflon with Steel Bracing Ring
Discharge Tube Latex Silicone
Sample Container(s) HDPE ( or polypropylene (PP)) Glass
O-Rings Buna-N (or Viton) Silicone

5.5.3 Pressurized Source

Special care must be taken in applications with back pressure so that the
sampler does not become flooded. Options for pressurized situations include:

1. Relocate the sampler. Although it may be located farther from the source,

the CVS/BVS vacuum system is able to handle long draws and can be
moved to a location (higher) where back-pressure is not an issue.

2. Loo pi ng the intake tube. For small amounts of pressure, looping the

intake tube up to a height that the water pressure cannot push above is a
simple way of getting around the issue. The maximum hei gh t wo uld be the
maximum vertical draw, 3.4 m (27.5 ft).

We recommend using a valve with exte rnal valve contro l in this
kind of situation, to be on the same side . Se e FIGURE 5-8.

18

CVS4200 / BVS4300 Stationary Samplers

FIGURE 5-8. Vertical loop for pressurized source

3. Flow-Through Chamber. Divert liquid from the pressurized line to a

“wet well” or secondary pool, and attach this component to it, as shown in
FIGURE 5-9.

4. Configuring a Combination of Valves. Using a combination of va l ves,

such as pressure reducing valves and ball valves, previous customers have
successfully managed to take samples under a certain amount of pressure
without flooding the syst em.

19

CVS4200 / BVS4300 Stationary Samplers

FLOW-THROUGH CHAMBER
MUST BE INSTALLED BELOW
ELEVATION OF METERING
CHAMBER TO AVOID
FLOODING OF SAMPLER.

FIGURE 5-9. Flow-through chamber for pressurized source

20

6. Specifications

Features:

CVS4200 / BVS4300 Stationary Samplers

• Rapid transport velocities of samples (horizontal draws 76.2 m (250

ft) at 0.8 m s
solids.

• All information is easily contr olled and viewable on a 2 by 16

character backlit LCD.

• Vacuum technology benefits over peristaltic pump samplers:

o Accurate sample volumes,
o Rapid transpo r t velocities mean more-representative samples,
o Less disturbance of sample,
o Minimal wear on the tubing, resulting in less-frequent

maintenance,

o Reduced cross-sample conta mination.

Compatible Dataloggers: CR6
CR200(X)-series
CR800 series
CR1000
CR3000
CR5000
CR9000X
CR510
CR10(X)
CR23X
CR7
21X

–1

(2.5 ft s–1), meanin g more accurate samples, even of

21

CVS4200 / BVS4300 Stationary Samplers

TABLE 6-1. BVS4300 Sampler Specifications

6.1 BVS4300 Outdoor Stationa ry Sampler Specifications

Dimensions

Weight

Enclosure

Cold-Weather Option

Hot-Weather Option

Power Requirements

Operating
Temperature

Height: 1.6 m (63 in)
Width: 0.66 m (26 in)
Depth: 0.66 m (26 in)

Refrigerated Weight: 141 kg (310 lb)
Non-Refrigerated Weight: 109 kg (240 lb)

NEMA 3R (insulation available as an option) 14­gauge steel enclosure with heat cured polyester­based powder paint for corrosion resistance, and
lockable door with one set of keys.

Insulation with thermostatically controlled forced-air
heater.

Cabinet circulation fan(s) prolong life expectancy of
refrigerator in hot settings.

Sampler:
DC Output: 13.6 V, 10 A.
AC Input: 88 to 264 Vac, 50/60 Hz, 2.5 A (max 3 A)

Refrigerator: 115 Vac, 60 Hz
Small Fridge: 1.3 A
Large Fridge: 2 A

Heater: 115 Vac, 60 Hz. 3.5 A
Standard: 0 to 50 °C (32 to 122 °F)

With Optional Heater & Insulation: –40 to 50 °C
(–40 to 122 °F)

Storage Temperature

–30 to 60 °C (–22 to 140 °F)

22

CVS4200 / BVS4300 Stationary Samplers

TABLE 6-2. CVS4200 Sampler Specifications

TABLE 6-3. Controller Specifications

6.2 CVS4200 Indoor Stationary Sampler Specifications

Dimensions

Weight

Enclosure

Power Requirements

Refrigerated Composite:
Height: 1.40 m (55 in)

Width: 0.53 m (21 in)
Depth: 0.56 m (22 in)

Refrigerated Discrete:
Height: 1.45 m (57 in)

Width: 0.61 m (24 in)
Depth: 0.61 m (24 in)

Non-Refrigerated:
Height: 0.59 m (23 in)

Width: 0.43 m (17 in)
Depth: 0.48 m (18.75 in)

Refrigerated Composite: 68 kg (150 lb)
Refrigerated Discrete: 91 kg (200 lb)
Non-Refrigerated: 32 kg (70 lb)

NEMA 1 general purpose, 14 gauge steel enclosure
(upper control section only) with polyester-based
powder paint for corrosion resistance.

Sampler:
DC Output: 13.6 V, 10 A.
AC Input: 88 to 264 Vac, 50/60 Hz, 2.5 A (max 3 A)

Refrigerator: 115 Vac, 60 Hz
Small Fridge: 1.3 A
Large Fridge: 2 A

Operating
Temperature

Storage Temperature

10 to 50 °C (50 to 122 °F)

–30 to 60 °C (–22 to 140 °F)

6.3 Controller Specificat ions

Feature Function Capability
START DELAY

Time/Day Adjustable, up to 1 week in advance.
Pulse Count Adjustable, up to 9,999,999.
4-20mA Adjustable, up to 9,999,999 (4 to 20 mA = 0 to 100 pulses/min).
External Contact Momentary, 25 millisecond dry contact closure.
Level Control Adjustable up to 99 second contact duration.

Disabled No start delay.

23

CVS4200 / BVS4300 Stationary Samplers

TABLE 6-4. Controller Specifications

SAMPLE
INITIATION

Disabled

No sample initiation.
Interval T ime

Adjustable up to 999 hours, 99 minutes.

Pulse Count

Adjustable, up to 9,999,999.

4-20mA

Adjustable, u p to 9 ,999, 999 (4 to 20 mA = 0 to 100 pulses/min).

External Contact

Momentary, 25 ms dry contact closure.

PROGRAM TYPE

Composite

Terminate after up to 9,999,999 samples.

Multi-Composite

Adjustable, up to 99 cycles per bottle.

Consecutive

Adjustable, up to 9 bottles per cycle.

Daily Cycle

Adjustable, up to 9 bottles per day.

Timed Step

Adjustable, up to 99 hours, 99 minutes per step.

CLOCK

Real Time Clock

Real time operating system.

PINCH VALVE

Sample release

Adjustable, normally open / normally closed.

PURGE CYCLE

Draw and purge time

Adjustable, 1 to 99 seconds.

SUCTION CYCLE

Variable

Adjusts automatically to double the value of the purge time
Vacuum

System pressure range is –14 to +20 psi, which can be shown
on the Optional Pressure Gauge.

ALARM OUTPUTS

Independent

Container Full (Latched. Any key resets. NPN*)

Sample Fault (Latched. Any key resets. NPN*)

Cycle Abandoned (Pulsed. NPN*)

*NPN (sinking) – see Appendix A, Principles of Operation

,

STATUS OUTPUTS

Independent

Sample Taken (DC relay driver, sinking)

DIRECT
FUNCTION KEYS

Manual Sampl e

Samples manually when pressed twice. Does not interrupt
program.

Manual Pur ge

Purges system during second press as long as button is pressed.

Manual Bottle
Advance

Moves distributor arm to next bottle.
Restart

Re-initiates program when pressed twice.

AVAILABLE
DISPLAYS

Real-Time Clock
Process Timing

Elapsed, remaining.

Process Totals

Pulse Counting

Internal/external.

Event Response

With time stamp.

Multi-Level
Descriptions

Flashing Text

AUTOMATIC
DISPLAYS

Container Full

Sample program complete.
Fault

Program not completed.

Power Interrupt –
Program R esumed

Alternating Time
Stamp

Cycle(s) Abandoned

setting or until liquid contacts level elec tr ode in metering
chamber.

for details.

(p. A-1)

24

CVS4200 / BVS4300 Stationary Samplers

TABLE 6-5. Va c uum System Specifications

TABLE 6-6. Vertical Velocity

6.4 Vacuum System Specifications

Feature Description
Switches

Sampl e Volume

Maximum Horizontal
Transport Distance

Maximum Vertical
Lift

Metering Chamber
Cover

Volume Control Tube
Metering Chamber

Level Electrode
Intake Hose Material
Discharge Hose

Material
Refrigerator

Run/Off (SPST Toggle).
Power On/Off (5 A lighted breaker).
Refrigerator On/Off (5 A lighted breaker).
Heater On/Off (5 A lighted breaker).

Adjustable, 50 to 500 cc
Adjustable, 50 to 1,000 cc

76.2 m (250 ft); assumes no vertical lift

8.2 m (27 ft) for 3/8 inch system

6.1 m (20 ft) for 5/8 inch system
Nylon

316 stainless steel
316 stainless steel

Nylon-Reinforced PVC
Latex

Small (composite): 4.4 cu ft, adjustable to 4 °C.
(optional)
Large (discrete): 5.8 cu ft, adjustable to 4 °C, glass­door, digital display. (optional)

System Size

3/8 inch

5/8 inch

(composite

samplers

only)

6.5 Sample Transport Vel oci ty

0 m

(0 ft)

2.16 m s
(7.1 ft s

1.52 m s
(5 ft s

-1

-1

-1

)

-1

)

1.5 m
(5 ft)

2.16 m s
(7.1 ft s

1.40 m s
(4.6 ft s

-1

-1

-1

)

-1

)

3.1 m

(10 ft)

1.83 m s
(6 ft s

1.19 m s

(3.9 ft s

-1

-1

-1

)

-1

)

4.6 m

(15 ft)

1.52 m s
(5 ft s

0.94 m s

(3.1 ft s

Height

5.5 m

(18 ft)

-1

1.34 m s

-1

)

(4.4 ft s

-1

0.82 m s

-1

)

(2.7 ft s

-1

-1

-1

)

-1

)

6.1 m

(20 ft)

1.25 m s
(4.1 ft s

0.55 m s
(1.8 ft s

-1

-1

-1

-1

)

)

6.7 m

(22 ft)

1.10 m s
(3.6 ft s

0 m s

(0 ft s

7.6 m

(25 ft)

-1

0.91 m s

-1

)

-1

-1

)

-1

(3 ft s

-1

)

8.2 m

(27 ft)

0.79 m s
(2.6 ft s

-1

-1

)

25

CVS4200 / BVS4300 Stationary Samplers

TABLE 6-7. Horizontal Lift

System Size

3/8 inch

7.6 m

(25 ft)

2.16 m s
(7.1 ft s

-1

-1

)

15.2 m
(50 ft)

1.89 m s
(6.2 ft s

-1

-1

)

22.9 m
(75 ft)

1.71 m s
(5.6 ft s

-1

-1

)

Distance

30.5 m

(100 ft)

1.52 m s

-1

(5 ft s

-1

)

53.3 m

(175 ft)

1.22 m s
(4 ft s

61 m

(200 ft)

-1

1.13 m s

-1

)

(3.7 ft s

-1

-1

)

76.2 m

(250 ft)

0.79 m s
(2.6 ft s

-1

-1

)

5/8 inch

(composite

samplers

only)

1.52 m s
(5 ft s

-1

1.43 m s

-1

)

(4.7 ft s

-1

-1

)

1.31 m s
(4.3 ft s

-1

-1

)

1.28 m s
(4.2 ft s

-1

-1

)

1.13 m s
(3.7 ft s

-1

-1

)

1.01 m s
(3.3 ft s

-1

-1

)

0.73 m s
(2.4 ft s

-1

-1

)

26

CVS4200 / BVS4300 Stationary Samplers

NOTE

WARNING

6.5.1 Using Velocity to Calculate Purge Time

Purge time of the sampler needs to be programmed based on the length of hose
and the velocity at which the liquid will travel through the hose. The formula is
l / v = p (length / ve l ocity = min. purge time).

Adding a few sec onds to the purge time is recommended to ensure
the line is fully cleared of any obstructions.

Example: 100 ft of hose, at 5 ft s–1, requires a minimum 20 s purge time. 100 /
5 = 20 s. The number input for purge time should be a minimum of 20 , but
preferably 24.

Standard purge time for 25 ft of intake tube is 10 s. Although a standard 25 ft
hose will sample in less than 4 seconds, 10 s is the minimum recommended for
proper clearing of the line.

6.5.2 Horiz onta l/Vertical Combinations

The velocity charts above measure only horizontal or only vertical. Most
applications will have combinations of both. With 61 m (200 ft) of intake
tubing, CVS/BVS Samplers are capable of drawing a sample above 0.6 m s

–1

) at 6.1 m (20 ft) of vertical. At 7 m (23 ft) of vertical with 61 m (200 ft)

(2 ft s
of intake tubing, sampling may or ma y not be successful, depending on altitude
and other factors. For more detailed information for your specific application,
please contact Campbell Scientific.

–1

7. Operation

7.1 Use in Adverse Conditions

7.1.1 Exhaust

7.1.2 Ins trument Air

When the sa mpling sequence is in the suction cycle, the air removed from the
metering c hamber and intake hose is vented externally through the exhaust
fitting. If the unit is installed indo ors and detrimental air conditions exist in the
sample lines, the exhaust should be vented outdoors. To vent the exhaust,
connect a hose to the pump exhaust connection (13 on FIGURE 5-1) and ro ut e
the hose outdoors.

Under adverse atmospheric conditions (humid, corrosive, etc.), compressed air
should be used to purge the cabinet and provide clean air for the pump intake.
Connect the tubing for the air tank to the fittings located on the left side of the
BVS enclosure (14 on FIGURE 5-1).

Failure to purge the cabinet in harsh conditions may
cause damage to the sampler and loss of warranty.

27

CVS4200 / BVS4300 Stationary Samplers

NOTE

CAUTION

CAUTION

CAUTION

7.1.3 Freezing Conditions

If the sampler is located outdoors in freezing conditions, we recommend a
BVS4300 with a factory installed heater and insulation.

As the interior floor of the cabinets is not insulated, an added
insulating factor is to fill the cavity unde r the c a binet between the
mounting le gs. This can best be accomplished using 5 cm (2 in)
foam board (available from your local building supply store).

Intake hose should be positione d to have as little horizontal distance as
possible, so that no water can collect in the line and freeze.

In extreme cold conditions the intake hose should be
insulated and/or heated.

If the hose is positioned mostly vertical, the most prone point of freezing is
where the hose enters the frozen water source.

7.2 Power Line/Wiring Consi de rations

A noise free or clean line from primary power is highly
recommended to suppl y the CVS/BVS sam pler. Never run
wiring in the same conduit as the aforementioned or
together with any telephone line(s).

Bring power from main distribution pa nel along a path that does not parallel
any existing power wiring to motors, solenoids, or contactors.

When sampler power line must cross existing power lines, do so at right
angles.

Wiring to remote/external functions should avoid all AC
power lines if possible and/or run in shielded cable
terminating the shield at the AC ground terminal on the
sampler main term inal block, or at the rem ote site, but not
both.

28

7.3 Operating Sequence

7.3.1 Sampl ing Sequence

CVS4200 / BVS4300 Stationary Samplers

SAMPLING PROCESS:

1. Hi gh pressure air purge of intake hose.

2. Liquid is drawn into the metering chamber, up to the liquid sensing rod.

3. All excess liquid is purged from the system down to the level set by the

volume control tube.

4. T he sample is then released into either one composite container or one of

several discrete containers.

The sampling sequence be gins with a high pressure air purge of the intake
assembly to remove residual liquid and obstructions. Upon completion of the
pre-purge cycle, the system converts to a vacuum state, drawing the sample
through the intake hose into the meteri ng chamber. The system then
pressurizes, ejecting excess fluid back through the intake line until the
predetermined sample volume is achieved. The sample is then deposited under
pressure into the sample container while the post purge again clears the intake
line of any residual liquid.

Should the sampler, for any reason, not be able to draw a sufficient volume of
fluid to obtain a sample, the unit automatically initiates a second attempt.
Should a sample still not be delivered, the sequence will be abandoned and the
unit will await the next initiatio n. Upon two consecutive failures, the sampler
will suspend the sampling program until manually RESTARTed.

29

CVS4200 / BVS4300 Stationary Samplers

CAUTION

CAUTION

If programmed with the FAULT SHUTDOWN “disabled”, the sampler will
not make a second attempt to draw the sample, but will simply abandon it and
await the next sample initiation. Neither will the unit suspend the sampling
program after consecutive failures. This function is provided for use in the
event that the sample source may be lacking sufficient fluid from which to
draw, for a period of time, yet allows the sampler to conti nue operating without
a FAULT SHUTDOWN occurring. The second attempt is not made to prevent

unnecessary wear on the sampler.

7.3.2 Line Voltage Failure

Should the sampler have a factory installed internal battery or have an external
battery connected, the sampler will continue operating (with the exception of
the refrigerator and heater). The duration of operation will depend on the
capability and charge level of either battery. The frequency and the length of
each sample cycle will also have an impact on how long the batteries will last.

7.4 Operating Instructions

7.4.1 Sample Volume Adjustments

30

Setting the desired sample volume is accomplished by adjusting the height of
the volume c ontrol tube within the metering chamber . The tube is mounted
through the t op of the chamber with a gland nut fixing t he position. To adjust
the sample volume, loosen the nut until the volume c ontrol tube may be moved
freely. Raise or lower the bottom end of the tube to the desired volume using
the lines provided on the side of the chamber as a guide (lines are spaced at 100
cc intervals with the exception of one at 50 cc). Tighten the gland nut to ho ld
the volume control tube at the desired position.

The volume control tube should always be located below the
liquid sensing rod.

Hold the bottom nut while loosening / tightening the top nut,
or it may become loosened from the metering chamber
cover and create an imperceptible leak in the vacuum
system.

7.4.2 Liqui d Sensing Rod

CAUTION

This probe, also called the “level control rod”, is used to stop the sample
intake. Always ensure that its lower end is located above the volume control
tube. Approximately 1” difference is sufficient. If the fluid intake is turbulent
within the metering chamber, more than 1” may be required to ensure
splashing of fluid does not trigger probe.

In applications with substantial oil or grease, the rods can become coated and
lose their conductivity. This is prevented by cleaning the rods regularly. In
extreme cases, extra SS wire can be wrapped around the liquid sensing rod to
increase its surface area.

The liquid sensing rod and volume control tubes must be
kept clean to ens ure conductivity necessary to d etect the
presence of the fluid.

Most CVS/BVS Samplers incorporate a Barrier Valve in the metering
chamber cover, where the tubing from t he pump enters. It co nsists of a cage
containing a ball that will float if the sample should r ise to the top of the
chamber without detection. Should rod conductivity fail, the fluid brings the
float into contact with an O-ring surroundin g the pressure / vacuum port,
sealing the entry to the t ubing and the pump (where the fluid may cause serious
damage). This O-ring Barrier Valve should be inspected regularly and
replaced as necessary.

CVS4200 / BVS4300 Stationary Samplers

Due to the restriction of Wetted Materials (such as, stainless steel, glass and
fluorocarbons, etc.), some models of the sampler do not contain this barrier
valve. In these units, a secondary liquid-sensing circuit may be added as a
precaution. This circuit is connected to the pump tubing fitting on the Metering
Chamber cover.

7.5 Battery

7.5.1 Charging 12 Vdc Battery and Reverse Polarity Protection

The sampler will charge only the factory installed internal battery. This
charging takes place continually as long as there is incoming line power.
Should the need arise to only charge the internal battery, as would be required
to store the sampler for an extended period of time, simply place the “RUN /
OFF” toggle switch in the OFF position, and leave the sampler power breaker
on. Twenty-fo ur (24) hours should be sufficient to fully charge the battery.

The sampler is equipped with REVERSE POLARITY PROTECTION for
checking the connection of an external battery. When attaching an external
battery, be sure to check the reverse polarity indicator. If it is ON, reverse the
connections at the battery.

31

CVS4200 / BVS4300 Stationary Samplers

FIGURE 7-1. Battery performance curve

7.5.2 Sampler Controller Backup Battery

The controller contains a 3.6 V lithi um backup battery to maintain user settings
during loss of system power. If power is removed for any reason, the controller
will start a planned shutdown procedure which will save all user settings while
its operating voltage is reduced from 5 V to approximately 3.3 V. The rate at
which this voltage drops is slowed by the presence of a supercapacitor. By the
time the voltage has reached 3.3 V, the controller has safely stored all user
settings and entered a “sleep” mode. This is an extremely low-power mode
which is maintained by a trickle of current from the lithium battery, and can be
maintained for many years under normal circumstances.

The battery is located on the top left hand side of the controller. It is accessible
by the removal of the clear cover, and should be changed under powered
conditions. Since the controller is a low-power device, this uncovering can be
safely done, ta king care that no conductive imple ment contacts sensitive circuit
components.

If the controller starts to exhibit cer ta in operating anomalies such as loss of
user settings after sustained power outages or an inability to wake up after a
normal shutdown, it may be due to a low or totally discharged backup battery.
To predict the probability of these e vents, regular examination of the battery
condition is encouraged. The battery status is easily determined while the
controller is active. The process will no t a ffect a running program. Battery
status can be checked by use of the following Touchpad sequence:

32

The display will then show “PASSED” , “LOW” or “FAULT”. The latter two
require battery replacement (see Section 9.4, Controller Battery Replacement
Procedure

7.6 Programming

7.6.1 Guidelines

Controller settings may be changed at any time. Changes are termed NEW
ENTRIES. No NEW E NTRIES will be acted upon unless the controlle r is
RESTARTed. Once RESTARTed, all NEW ENTRIES become ACTIVE
SETTINGS.

Every time the controller is RESTARTed, all accumulators (i.e., SAMPLES
TAKEN, TIME R EMAINING, REMAINING PULSES, etc.) are cleared

and the ACTIVE SETTINGS are reloaded unless NEW ENTRIES have been
made.

CVS4200 / BVS4300 Stationary Samplers

1. VIEW , OTHE R OPTIONS

2. Select MAINTENANCE, ENTER

3. Select B/U BATTERY TEST, ENTER

(p. 77)).

Remember - Start Delay is reloaded too!!

7.6.1.1 Flashing Text

Flashing text is the system wide p rompt that indicates an input is required from
the user. Flashing words or duel flashing digits prompt for arrow keys to be
pressed to scroll through available options. A single flashing digit prompts for
a numeric key to be pressed. When the desired option or number is shown on
the display, pre ss the ENTER key.

7.6.1.2 Real Time Clock

The controller has two basic timing modes. The simplest of these requires no
maintenance; it simply provides a “heartbeat” for various timed functions. The
other timing mode is the REAL TIME CLOCK that is used i n several
functions and must be correctly set. This is likely the first item requiring

programming. Although time may have been set at the factory, time zone shifts
may require adjustment of the Real Time Clock.

7.6.1.3 Total Bottles

Since the number of bottles is usually determined by customer requirement at
the time of purchase, this variable will normally be set at the factory to match
the actual container hardware. Choices are restricted to a single container (as in
composite) or 2, 3, 4, 6, 8, 12 or 24. These all form instructions to the ste pper
motor in how it will behave when the internal command is given to step to the
next container (as each step increment is 15°).

33

CVS4200 / BVS4300 Stationary Samplers

TABLE 7-1. Touchpad Button Descriptions

7.6.2 Touc hpad Keys

Button Description

The VIEW key is used to review alterable parameters currently in use. It has no effect on the
program being executed at the time. Once pressed, the user is prompted for a FUNCTION to be
viewed. The parameters vi sible under the function can be stepped through using the ENTER key.

The SET key is used to change program settings or the entire sampling progra m. Changes made
have no effect on the program being executed at the time until the RESTART key is pressed twice.
To leave a programming sequence before entering it in memory, press SET or VIEW and the
sequence is aborted.

The ENTER key is used to complete either a VIEW or SET sequence, where sub-menu items are
available. Under the control of the VIEW key, parameters are scrolled onto the display, changing
with each use of the ENTER key until a complete display of the parameter is completed. Under the
control of the SET key, parameters can be displayed, with the added ability to change their values,
using the ENTER key to accept the new val ue until the entire parameter is displayed. (Note: New
values are not operational at this time.)

34

TABLE 7-1. Touchpad Button Descriptions

Button Description

The RESTART key is used to load any new parameters into the operating program. Pressing it
twice will initialize the program and terminate any existing sample program. Any parameters
altered under the SET command are updated to the active program. If no parameters have been
changed, the program is reset to its first instruction and the same sampler program is started again.
This key requires a confirming second a c tivation to complete its function. WARNING: Any

program in progress is ended and all data is lost.
SAMPLES TAKEN [VIEW]. The total number of samples taken can be shown on the display.

REMAINING PULSES [VIEW]. In modes usi ng internal or external pulse counting, the current

status of the pulse count can be displayed.

REMAINING TIME [VIEW]. Various views are available dependent on the method used to
gather samples. Program variables will determine whether the displayed time is REMAINING
TIME, ELAPSED TIME or START DELAY.

CVS4200 / BVS4300 Stationary Samplers

START DELAY [VIEW/SE T]. The start of a sample program can be made to occur at a fixed
time or event. Options: DISABLE, TIME/DAY, PULSE INPUT, 4-20mA INPUT, EXTERNAL
CONTACT, LEVEL CONTROL.

SAMPLE INITIATION [VIEW/SET]. A sample program may be initiated and controlled by
various internal and external parameters. These parameters determine how the program will begin
its actions and how the results will be recorded. Options: DISABLE, INTERVAL TIME, PULSE
INPUT, 4-20mA INPUT, EXTERNAL CONTACT.

PROGRAM TYPE [VIEW/SET]. A sample program can be made to collect samples in a fixed
style so that the results are useable in different ways. The type of program used may be hardware
dependent. This will determine the sampler’s ability to collect and store the d e sir e d samples.
Options: COMPOSITE, DAILY CYCLE, CONSECUTIVE, MULTI-COMPOSITE, TIMED
STEP.

ACTIVE SETTINGS [VIEW]. Current sample program parameters can be reviewed by scrolling
through them using the EN TER key as a toggle.

NEW ENTRIES [SET]. Program all major program settings at once (including START DELAY,
SAMPLE INITIATION, PROGRAM TYPE, and PURGE TIME).
[VIEW]. Review parameters that have been changed since the sample program was started (only if
the changes have been properly ENTERED). Scrol l through the m using the ENTER key as a
toggle.

OTHER OPTIONS [VIEW/SET]. Various options relating to equipment and information
retrieval are available under this key. Changes in equipment setup can be entered here, and certain
status information is also availab le here. Options: CLOCK, PURGE TIME, PINCH VALVE,
FAULT SHUTDOWN, SAMPLER STATUS, CYCLES ABANDONE D, BOTTLE POSITION,
MAINTENANCE.

35

CVS4200 / BVS4300 Stationary Samplers

TABLE 7-1. Touchpad Button Descriptions

Button Description

MANUAL PURGE. Purges the intake line independent of program control, as lo ng as a

programmed cycle has not started. Sampler starts its pump, creating pressure in the sample intake
tube to purge it of any excess material that may be present. Button must be pressed twice to purge
line. Sustained pressure on the key during the second press will cause purgin g t o continue until the
key is released.

MANUAL ADVANCE. Distributor arm ad vances one position (for example, to next bottle),
dependent on the equipment available (discrete samplers only). This action is NOT updated to

any current sampler program. Button must be pressed twice to initiate manual advance.

MANUAL SAMPLE. Initiate a single Sample Cycle. Sampler must not be engaged in a sa mpling
event at the time. This action and any resulting sample collected are NOT updated to any
current sampler program. The Bottle Position is NOT advanced. Program will continue
uninterrupted. Button must be pressed twice to initiate manual sample. Whether successful or

not, the display will read “MANU AL S AMPLE Completed”.

7.6.3 General Terms

Many of the functions available on the Touchpad have a variety of options to
enhance their capabilities. These options are programmable from the Touchpad
and require only that the sampler have the correct equipment configuration to
utilize them.

DISABLE

The display showing disabled will reflect the status of any func tion not being
used.

TIME/DAY

The basis for several timed functions is the Real Time Operating System. Time
(of) Day will be a means of setting the timing period for the START D ELA Y
function. The format is on a weekly basis, requi ring hour, mi nute, AM/PM and
day inputs (HH:MM AM SUN). This means t he START DELAY can be set to
any particular minute in a week.

INTERVAL TIME

Sampler operation can be controlled by fixed time intervals which do not
require Time/Day setting. SA MPLE INITIATION has an option whereby an
interval time can be set between sample cycles. The controller will cause
samples to be taken on a timed interval b asis, continuing until the sample
program is completed by a full jar or operator intercession.

PULSE INPUT

This option will allow the controller to determine the sampler operation based
on external criteria. Pulses fed to a n internal accumulator in the controller will
be compared to the setting entered by the operator and will cause a sample
cycle to start. The accumulator will reset immediately and counting of pulses

36

CVS4200 / BVS4300 Stationary Samplers

will begin again. There is no loss of count the sample cycle. Pulse req ui rements
of the system are detailed in the specifications.

4-20mA INPUT

Where external devices do not themselves generate pulses in any relation to
their process but generate a current signal of 4-20mA, this input option will
generate int ernal pulse s proportional to the incoming 4-20mA signal. These
can then be treated the same as the Pulse Input option and accumulated in the
controller to determine when a sample cycle will occur.

EXTERNAL CONTACT

The sampler controller can react to an external, dry contact, otherwise known
as a zero-voltage contact, to activate a sample cycle on demand. This will
generally be when external conditions have caused a relay to close, requiring a
sample be taken at that time.

LEVEL CONTROL

The START DELAY function is a special case of the external contact option
where the contact signal is required to be present for a pre-programmed time.
This enables verification of the signal where fluctuations may occur in the level
which would trigger samples at unwanted times. This is the only case in which
the START DELAY is not a single timed event. The operation of the sampler
after the level signal is verified will be controlled by whatever function is s et in
the SAMPLE INITIATION. It will continue until the level drops or the
function is terminated by the controller. If the level drops before the function is
finished, any sample cycle already in progress will be completed and then the
system will shut down until the next ver if ie d level control signal.

COMPOSITE

A program option which determines that all the samples that are gathered will
be placed in a single container. The sample program terminates after a specific
number of samples.

MULTI-COMPOSITE

This option is used for discrete sampling applications, to deposit multiple
samples to one container before advancing the distributor mechanism to the
next container. The interval between each sample is controlled by the
SAMPLE INITIATION options. The multi-composite setting is
programmable up to 99 samples per container, for up to 24 containers
depending o n the hardware configurati on.

CONSECUTIVE

This option is used for discrete sampling applications, to successively deposit
one sample to each of a programmed number of containers on any given
sample initiation. The consecutive setting is programmable up to 99 containers
per sample initiation, although this may be severely limited by hardware
configuration.

37

CVS4200 / BVS4300 Stationary Samplers

DAILY CYCLE

Allows the sampler to deposit equal sample volumes into a predetermined
number of containers per programmed day. Each day may have any number of
samples taken, depende nt on the SAMPLE INITIATION mode chosen.
Deposits are made to as many as 9 containers per day, to a cumulative total of
24 containers. (For example, choosing a 24 bottle format, the sampler may be
programmed to deposit to Three (3) bottles on any six days of the week,
together with up to Six (6) bottles on the s eventh.) Timing is dependent on the
crystal-controlled Real Time Clock in the controller. The first program day will
be the curre nt day the pro gramming is done, unless the START DELAY
option is chosen to determine when sampling will begin.

TIMED STEP (O verride)

This option will cause the sample distributor to step to a new container
regardless of the status of t he SAMPLE INITIATION setting. For example,
the actual sampling may be under the control of a flowmeter and taking
samples based on the flow rate as determined by pulses or 4-20mA input to the
controller. When the user-programmed Timed i nterval has elapsed, the
controller will Step to a new container. The Timed Step can be set for any
interval up to 99 hours 59 minutes. Progress of the step timer can be viewed by
selecting View, Program Type and pressing ENTER twice. Thus you may
view the REM AIN IN G TIM E or the step timing.

7.6.4 Pr ogr amming START DELAY

7.6.4.1 START DELAY Overview

START DELAY is the function which will delay the beginnin g of a sample
program until certain external conditions are met. Upon meeting those
conditions, the sampler will initiate a sample cycle and then operate based on
the SAMPLE INITIATION parameters. Under START DELAY, flashing
text prompts the user to scroll through available options by pressing arrow
keys. These options only require that the correct equipment is present to utilize
them. The last option selected in previous programming will be the first to
appear on the display.

The display showing Disabled will reflect
the fact that the function is not being
used.

The basis for several timed functions is
the Real Time Operating System. Time
(of) Day will be a means of setting the
timing period for the START DELAY
function. The format is on a weekly basis,
requiring hour , min ute, AM/ PM and day
inputs (HH:MM AM SUN). This means
the start of a sampler program can be
delayed up to seven days.

38

CVS4200 / BVS4300 Stationary Samplers

The following sequence of entries are made

This option will allow the controlle r to
determine the sampler’s start of operation
based on external pulses. Pulses fed to an
internal accumulator in the controlle r will
be compared to the setting entered by the
operator. Pulse requirements of the
system are detailed in the specifications.

Where external devices do not themselves
generate pulses in any relation to their
process but generate a current signal of 4­20mA, this input option will gener a te
internal pulses proportional to the
incoming 4-20mA signal. These can t hen
be treated the same as the Pulse Input
option and accumulated in the controller
to determine when a sample program
should start.

The sampler controller can react to an
external dry contact, otherwise known as
a zero-voltage contact, to activate a
sample program on demand. This will
generally be when external conditions
have caused a relay to close, requiring a
sample program be started at that time.

7.6.4.2 START DELAY using Time/Day

This option is a special case of the
external contact option. The key
difference is that the contact closure must
be present for a pre-programmed time,
thus enabli ng verification of the signal.
This will accommodate fluctuations as
seen in a level switch, thereby avoiding
triggering of samples at unwanted times.

This is the only case in which the START
DELAY is not a single timed event.

Should the contact open for the same
pre-programmed time, the sampler will,
after completing any sample cycle already
in progress, halt the sampling initiation
and await the next verified signal. At this
time, the sampling program will resu me.

on the Touchpad to create a future starting
time for the operation of the Sampler. The
ACTIVE SETTINGS are not being altered.

39

CVS4200 / BVS4300 Stationary Samplers

1. Press the SET key.

2. Press the START DELAY key.

3. Press an ARROW key. Co ntinue until

4. Press the ENTER key.

When setting the time, a s i ngle flashing digit

The flashing prompt advances to the

The display will echo the last entry with

Time/Day is shown on the display.

indicates an input from a numer ic key is
required. Press a number key to enter a
value. The next digits fla sh in succession.
Enter each as required. The format is
HH:MM.

When the four digits are entered, press
ENTER. Any wrong entries will require re­entry. There are two methods of correcting a
mistake. The digit flashing “wraps around”
and begins again, at which time the correct
entry may be pressed. Alternately, the arrow
keys can be used to reposition the flashing
prompt over the error, which can then be
replaced with the correct value.

AM/PM indicator. Press the ARROW key
until the right indicator is shown. Press
ENTER.

The flashing prompt advances to the day
indicator. Press the ARROW key repeatedly
until the correct day appears. Press ENTER.

<ENTERED>.

40

The controller has now been given a new

The following sequence of entries are made

1. Press the SET key.

2. Press the START DELAY key.

3. Press an ARROW ke y. Co nti nue un til

4. Press the ENTER key.

The display will show a new screen

Summary of Sequence:
SET, START DELAY, ARROW(S), ENTER, #, #, #, #, ENTER,
ARROW(S), ENTER, ARROW(S), ENTER, RESTART, RESTART.

7.6.4.3 START DELAY using Pulse Input

CVS4200 / BVS4300 Stationary Samplers

value for START DELAY. The new values
reside in the NEW ENTRIES area of the
controller memory. To make these changes
active, press the RESTART key; press it
again to confirm your choice. The controller
will then wait until the designated time
before starting its sampling program.

on the Touchpad to create a future starting
time for the operation of the Sampler. The
ACTIVE SETTINGS are not being altered.

Pulse Input is shown on the display.

containing the option title PULSE INPUT
on the top line and a 7-digit number with the
leftmost digit flashing as an input prompt.
To set the number of pulses required to be
input before a sample program is started, use
the ARROW keys to move the flashing
prompt until it is over the digit requiring
change.

41

CVS4200 / BVS4300 Stationary Samplers

Press a number key (0-9) to replace any

The display will echo the last entry with

(press SET).

The controller has now been given a new

The following sequence of entries are made

1. Press the SET key.

2. Press the START DELAY key.

3. Press an ARROW ke y. Co nti nue un til 4-

existing number and advance the flashing
prompt to the next digit to change. Replace
digits as required, then press ENTER.

<ENTERED>.
Any wrong entries will require re-entry. If
ENTER has not been pressed, reposition the
prompt over the incorrect digit and replace
it. After ENTER has been pressed, the entire
entry must be redone from the beginning

value for START DELAY. The new
values reside in the NEW ENTRIES area
of the controller memory. To make these
changes active, press the RESTART key;
press it again to confirm your choice. The
controller will then wait until the re quired
pulses have been received before starting
its sampling program.

Summary of Sequence:
SET, START DELAY, ARROW(S) , ENTER, #######, ENTER,
RESTART, RES TA RT.

7.6.4.4 START DELAY using 4-20mA Input

on the Touchpad to create a future starting
time for the operation of the Sampler. The
ACTIVE SETTINGS are not being altered.

20mA Input is shown on the display.

42

CVS4200 / BVS4300 Stationary Samplers

4. Press the ENTER key.

The display will show a new screen

requiring change.

Press a number key (0-9) to replace any

The controller has now been given a new

The following sequence of entries are made

containing the option title 4-20mA INPUT
on the top line and a 7-digit number with the
leftmost digit flashing as a prompt for input.
The 4-20mA input will be converted by the
controller to pulses, propo rtional to the span
of the input, at the rate set in the
specifications. To set the number of pulses
required to be input before a sample program
is started, use the ARROW keys to move
the flashing prompt until it is over the d igit

existing number and advance the flashing
prompt to the next digit to change. Replace
digits as required, then press ENTER.

The display will echo the last entry with
<ENTERED>.

Any wrong entries will require re-entry. If
ENTER has not been pressed, reposition the
flashing prompt over the incorrect digit and
replace it. After ENTER has been pressed,
the entire entry must be redone from the
beginning (press SET).

value for START DELAY. The new values
reside in the NEW ENTRIES area of the

Summary of Sequence:
SET, START DELAY, ARROW(S) , ENTER, #######, ENTER,
RESTART, RES TA RT.

controller memory. To make these changes
active, press the RESTART key; press it
again to confirm your choice. The controller
will then wait until the required p ulses ha ve
been received before starting its sampling
program

7.6.4.5 START DELAY using External Contact

on the Touchpad to create a future starting

43

CVS4200 / BVS4300 Stationary Samplers

time for the operation of the Sampler. The

1. Press the SET key.

2. Press the START DELAY key.

3. Press an ARROW key. Continue until

4. Press the ENTER key.
The display will echo the last entry with

The controller has now been given a new

The following sequence of entries are made

ACTIVE SETTINGS are not being altered.

External Contact is shown on the display.

Summary of Sequence:
SET, START DELAY, ARROW(S), ENTER, RESTART, RESTART.

7.6.4.6 START DELAY using Level Control

<ENTERED>.

value for START DELAY. The new value
resides in the NEW ENTRIES area of the
controller memory. To make this change
active, press the RESTART key; press it
again to confirm your choice. The
controller will then wait until it r e c e ives a
contact closure (at the External Start
inputs on the terminal block) before
starting its sampling progra m.

44

on the Touchpad to create a future starting
time for the operation of the Sampler. The
ACTIVE SETTINGS are not being altered.

CVS4200 / BVS4300 Stationary Samplers

1. Press the SET key.

2. Press the START DELAY key.

3. Press an ARROW ke y. Co nti nue un til

4. Press the ENTER key.

The display will change to read “Minimum

Press a number key (0-9). The number will

The display will echo the last entry with

The controller has now been given a new

Level Control is shown on the display.

Contact Time: 03 seconds”. The actual time
shown may be any two-digit number. The
first digit will be flashing as a prompt for
input.

replace the current number and advance the
flashing prompt to the next digit. Pre ss a
second number key (0-9). Repeat this
procedure if number is wrong, until desired
time is displa yed . Press the ENTER key.

START DELAY, <ENTERED>.

value for START DELAY. The new
values reside in the NEW ENTRIES area
of the controller memory. To make these
changes active, press the RESTART key;
press it again to confirm your choice. The
controller will then wait until it r e c e ives a
contact closure (at the External Start
inputs on the t erminal block). The co ntact
must remain closed for the length of ti me
programmed in the steps above.

45

CVS4200 / BVS4300 Stationary Samplers

Summary of Sequence:
SET, START DELAY, ARROW(S) , ENTER, ##, ENTER , RESTART,
RESTART.

7.6.5 Pr ogr amming SAMPLE INITIATION

7.6.5.1 SAMPLE INITIATION Overview

SAMPLE INITIATION is the function that will determine the frequency that
samples are drawn. A variety of options to enhance the capabilities of this
function are available on the Touchpad. When the SAMPLE INITIATION
has been chosen to be set, a list of options is presented as flashing text below
the main heading of the function select ed. The list is advanced using the
ARROW keys (any direction) until the desir e d option is displayed. These
options are programmable from the Touchpad and require only that the sampler
have the correct equipment configura tion to utilize them. The last option
selected in previous progra mming wi ll be the first to appear on the display.

The display showing disabled will reflect
the fact that the function is not being
used.

Sampler operation can be started at
uniform inte rvals. This option allows an
interval time to be set between sample
cycles.

This option will allow the controlle r to
determine the SAMPLE INITIA TION
based on external pulses. Pulses fed to an
internal accumula tor in the controller will
be compared to the setting entered by the
operator and will cause a sample cycle to
start. The accumulator will reset
immediately and counting of pulse s will
begin again. There is no loss of count
during the s ample cycle.

Where external devices do not themselves
generate pulses in any relation to their
process but generate a current signal of 4­20mA, this input option will generate
internal pulses proportional to the
incoming 4-20mA signal. These can t hen
be treated the same as the Pulse Input
option and accumulated in the controller
to determine when a sample cycle should
occur.

46

The following sequence of entries are made

1. Press the SET key.

2. Press the SAMPLE INITIATION key.

3. Press an ARROW key. Co ntinue until

4. Press the ENTER key.

When setting the time, a flashing digit

7.6.5.2 SAMPLE INITIATION using Interval Time

CVS4200 / BVS4300 Stationary Samplers

The sampler controller can react to an
external dry contact, otherwise known as
a zero-voltage contact, to activate a
sample cycle on demand. This will
generally be when external conditions
have caused a relay to close, whose
contact will cause a sample to be taken.

on the Touchpad to form a basic operating
parameter for operation of the sampler. This
will determine the time from the start of a
sample cycle to the start of the next sa mple
cycle. No time is lost during the actual
sample cycle. The ACTIVE SETTINGS are
not being altered.

Interval Time is shown on the display.

prompts for input from a numeric key. To
set the time, press a numeric key to enter a
value and advance to each dig it in
succession. The format is HHH:MM. The
minimum time can be se t to 1 minute;
however, practical considerati ons, such as
equipment duty cycle, maintenance and
service life, suggest times of 3 minutes or
longer.

47

CVS4200 / BVS4300 Stationary Samplers

When the five digits are entered, press

The display will echo the last entry with

The controller has now been given a new
The following sequence of entries are made

1. Press the SET key.

2. Press the SAMPLE INITIATION key.

3. Press an ARROW key. Co ntinue until

ENTER. Any wrong entries will require re­entry. There are two methods of correcting
a mistake. The digi t fla s hi ng “ wrap s
around” and begins again, at which time the
correct entry may be pressed. Alternately,
the arrow keys can be used to reposition the
flashing prompt over the error, which can
then be replaced with the correct value.

<ENTERED>.

value for SAMP LE IN ITIATION. The new
values reside in the NEW ENTRIES area of
the controller memory. To make these
changes active, press the RESTART key;
press it again to confirm your choice. The
controller will then wait the designated time
before taking a sample.

Summary of Sequence:
SET, SAMPLE INITIATION, ARROW(S), ENTER, ###:##, ENTER,
RESTART, RES TA RT.

7.6.5.3 SAMPLE INITIATION using Pulse Input

on the Touchpad to form a basic operating
parameter for operation of the sampler. This
will determine the number of pulses from the
start of a sample cycle to the start of the next
sample cycle. The ACTIVE SETTINGS are
not being altered.

48

Pulse Input is shown on the display.

CVS4200 / BVS4300 Stationary Samplers

4. Press the ENTER key.

The display will show a new screen

Press a number key (0-9) to replace any

The display will echo the last entry with

The controller has now been given a new

containing the option title PULSE INPUT
on the top line and a 7-digit number with the
leftmost digit flashing to prompt for a
numeric input. To set the number of pulses
required to be input before a sample is taken,
by use of the ARROW keys, move the
flashing prompt until it is over the digit
requiring change.

existing number and advance the flashing
prompt to the next digit to change. Rep la ce
digits as required, then press ENTER.

<ENTERED>.
Any wrong entries will require re-entry. If

ENTER has not been pressed, reposition the
prompt over the incorrect digit and replace
it. After ENTER has been pressed, the entire
entry must be redone from the beginning
(press SET).

value for SAMP LE IN ITIATION. T he new
values reside in the NEW ENTRIES area of

Summary of Sequence:
SET, SAMPLE INITIATION, ARROW(S), ENTER, ## #####, ENTER,
RESTART, RES TA RT.

the controller memory. To make these
changes active, press the RESTART key;
press it again to confirm your choice. The
controller will then wait until the re quired
pulses have been received before taking a
sample.

49

CVS4200 / BVS4300 Stationary Samplers

The following sequence of entries are

1. Press the SET key.

2. Press the SAMPLE INITIATION key

3. Press an ARROW key. Co ntinue until

4. Press the ENTER key.

The display will show a new screen

Press a number key (0-9) to replace any

7.6.5.4 SAMPLE INITIATION using 4-20mA Input

made on the Touchpad to form a basic
operating parameter for operation of the
sampler. This will determine the number
of pulses from the start of a sample cycle
to the start of the next sample c ycle. The
ACTIVE SETTINGS are not being
altered.

4-20mA Input is shown on the display.

containing the option title 4-20mA
INPUT on the top line and a 7-digit
number with the leftmost digit flashing as
a prompt for input. The 4-20mA input
will be converted by the controller to
pulses, proportional to the span of the
input, at the rate set in the specifications.
To set the number of pulses required to be
input before a sample is taken, use the
ARROW keys to mo ve the flashing
prompt until it is over the digit requiring
change.

existing number and advance the flashing
prompt to the next digit to change. Rep la ce
digits as required, then press ENTER.

50

CVS4200 / BVS4300 Stationary Samplers

The display will echo the last entry with

The controller has now been given a new
The following sequence of entries are

1. Press the SET key.

2. Press the SAMPLE INITIATION key.

3. Press an ARROW key. Co ntinue until

4. Press the ENTER key.

<ENTERED>.
Any wrong entries will require re-entry. If

ENTER has not been pressed, reposition
the prompt over the incorrect digit and
replace it. After ENTER has been
pressed, the entire entry must be redone
from the beginning (press SET).

value for SAMP LE IN ITIATION. The
new values reside in the NEW ENTRIES

Summary of Sequence:
SET, SAMPLE INITIATION, ARROW(S), ENTER, ## #####, ENTER,
RESTART, RES TA RT.

area of the controller memory. To make
these changes active, press the RESTART
key; press it again to confirm your choice.
The controller will then wait until the
required pulses have been received before
taking a sample.

7.6.5.5 SAMPLE INITIATION using External Contact

made on the Touchpad to form a basic
operating parameter for operation of the
sampler. This will determine the ti me
between samples being taken. The
ACTIVE SETTINGS are not being
altered.

External Contact is shown on the display.

51

CVS4200 / BVS4300 Stationary Samplers

The display will echo the last entry with

The controller has now been given a new

Summary of Sequence:
SET, SAMPLE INITIATION, ARROW(S), ENTER, RESTART,
RESTART.

7.6.6 Pr ogr amming PROGRAM TYPE

<ENTERED>.

value for SAMP LE IN ITIATION. The
new value res ides in the NEW ENTRIES
area of the controller memory. To make
this change a ctive, press the RESTART
key; press it again to confirm your choice.
The controller will then wait until a contac t
closure has been received before taking a
sample.

7.6.6.1 PROGRAM TYPE Overview

PROGRAM TYPE is the function that determines how the sampler will
perform its program. A variety of options are available. These options are
programmable from the Touchpad and require only that the sampler have the
correct e quipment configuration to ut i lize them. The basic functi on of the
PROGRAM TYPE is to determine the movement of the distributor.

The program option which determines
that all the samples that are gathered will
be placed in a single container. The
sampler program terminates after the
specified number of samples have been
taken.

This option is used for discrete sampling
applications, to deposit one or a number
of samples to one container before
advancing to the next container. The
interval between samples is controlle d by
the SAMPLE INITIATION function.
The multi-co mposite setting is
programmable up to 99 samples per
container, for up to 24 containers
depending o n the hardware configurati on.

52

CVS4200 / BVS4300 Stationary Samplers

The following sequence of entries are

1. Press the SET key.

This option is used for discrete sampling
applications, to successively deposit one
sample to each of a programmed number
of containe rs on any given s ample
initiation. The consecutive sett ing is
programmable up to 99 containers per
sample initiation.

Allows the sampler to deposit equal
sample volumes into a predetermined
number of containers per programmed
day. Each day may have any number of
samples taken, depende nt on the
SAMPLE INITIATION mode chosen.
Deposits are made to as many as 9
containers per day, to a cumulative total
of 24 containers. Timing is dependent on
the crystal-controlled Real Time Clock in
the controller. The first program day will
be the curre nt day the pro gramming is
done.

This option will cause the sampler to step
to a new container regardless of the status
of the SAMPLE INITIATION setting.
For example, the actual sampling may be
under the control of a flowmeter and
taking samples based on the flow rate as
determined by pulses or 4-20mA input to
the controller. When the
user-programmed timed interval has
elapsed, the controller will step to a new
container. The Timed Step can be set for
any interval up to 99 hours 59 minutes.
Progress of the step timer can be viewed
by selecting View, Program Type and
pressing ENT ER twice. Thus you may
view the step timing and the amount of
time until the next step occurs.

7.6.6.2 PROGRAM TYPE - Composite

made on the Touchpad to describe how
the Sampler controller is to sto re the
samples it takes, in the hardware specified
in its configuration. T he ACTIVE
SETTINGS are not being altered.

53

CVS4200 / BVS4300 Stationary Samplers

2. Press the PROGRAM TYPE key.

3. Press an ARROW key. Co ntinue until

4. Press the ENTER key.

The display will respond with the message

When the 9 digit number is correctly
The display will echo the last entry with

The controller has now been given a new

variables.

Composite is shown on the d isplay (for
storage in single container).

“Terminate After 0003000 Samples”. The
numerical value will be whatever value was
last placed in the controller’s memory,
usually after previous p rogramming. To
keep the previous value, press ENTER, or,
to set a new value, use the ARROW keys to
advance the flashing prompt to the desired
location and replace the digits under the
prompt by using the digits (0-9) on the
Touchpad. Each new entry will
automatically advance the prompt to the next
location. In this way, the entire 7-digit
number can be changed. The ARROW keys
can be used to skip already correct digits, in
either direction.

entered, press ENTER.

PROGRAM TYPE <ENTERED>.

value for PROGRAM TYPE. The new
value resides in the NEW ENTRIES area of
the controller memory. To make these
changes active, press the RESTART key;
press it again to confirm your choice. The
controller will then be set to perform as a
Composite Sampler in conjunction with the
parameters programmed under the START
DELAY and SAMPLE INITIATION

54

Summary of Sequence:

The following sequence of entries are made

1. Press the SET key.

2. Press the PROGRAM TYPE key.

3. Press an ARROW key. Co ntinue until

4. Press the ENTER key.

The display will respond with the message

Press ENTER. T he second line of the

SET, PROGRAM TYPE, ARROW(S), ENTER, #######, ENTER,
RESTART, RES TA RT.

7.6.6.3 PROGRAM TYPE - Daily Cycle

CVS4200 / BVS4300 Stationary Samplers

on the Touchpad to describe how the
Sampler controller is to store the sample s it
takes, in the hardware specified in its
configuration. The ACTIVE SETTINGS are
not being altered.

Daily Cycle is sho wn on the display (for
storage in a single container or a multiple
container).

“DAILY CYCLE Total Bottles ‘nn’”. The
two digits will be flashing as a prompt; they
can be changed using the arrow keys.

display will change to show a day of the
week. The first day displayed will be the
day the programming is being done.
Following the day of the week will be a
flashing digit, which is prompting for a
numeric input. Using the number keys
(0-9) enter the number of bottles to be
utilized on the displayed day, to a
maximum of 9 or the total number of
containers not yet allocated from the
array.

55

CVS4200 / BVS4300 Stationary Samplers

Press ENTER. This will register the

Press ENTER. Repeat the above

The controller has now been given a new

The following sequence of entries are

specified is configured to deliver Samples

value for the displayed day and advance
the display to the next da y. Again, enter a
number for that particular da y,
remembering that only co ntainers not
previously allocated can be chosen. If no
change in the displayed value is required,
the value has been changed or the value is
zero, pressing ENTER will advance the
day of the week. Therefore...

procedures until all the required
containers, on their respective days, have
been allocated, or the 7 days of the week
are all selected. The total number
available is never allowed to be more than
the amount registered as the two digit
representation of the hardware
configuration in the “Total bottles 00”
entry.

7.6.6.4 PROGRAM TYPE - Daily Cycle for Dual Station

The display will echo the last entry with
PROGRAM TYPE <ENTERED>.

value for PROGRAM TYPE. The new
value resides in the NEW ENTRIES area

Summary of Sequence:
SET, PROGRAM TYPE, ARROW(S), ENTER, ARROW(S), ENTER, #,
ENTER, #, ENTER , #, ENTER, #, ENTER, #, ENTER, # , ENTER, #,
ENTER, RESTAR T, RESTART.

Dual Station – Flip Flo p Application Only (Single Controller, Two Metering

Chambers)

of the controller memory. To make these
changes active, press the RESTART key;
press it again to confirm your choice. The
controller will then be set to perform as a
Daily Cycle Sampler in conjunction with
the parameters programmed under the

START DELAY and SAMPLE
INITIATION variables.

56

made on the Touchpad to describe how
the Sampler controller is to sto re the
samples it takes, when the hardware

CVS4200 / BVS4300 Stationary Samplers

from two separate sources. The ACTIVE

1. Press the SET key.

2. Press the PROGRAM TYPE key.

3. Press an ARROW key. Co ntinue until

4. Press the ENTER key.

The display will show the response “DAILY

Press ENTER. T he second line of the
Press ENTER. This will register the value

SETTINGS are not being altered.

Daily Cycle is sho wn on the display.

CYCLE Total Bottles nn”. T he two digits,
nn, will flash, indicating they can be
changed. In this application, the number of
bottles must be set to 24.

display will change to show a day of the
week. The first day that shows will be the
day the programming is being done.
Following the day of the week will be a
flashing single digit, which is the prompt for
a numeric i nput. Using the number keys
(0-9) enter the number of bottles to be
utilized on the first day. In this application
this will be set to 2.

for the displayed day and change that display
to show the next day. Agai n, enter a nu mber
for that particular day, remembering that in
this application this will be set to 2. If no
change in the displayed value is required, the
value has been changed or the value is zero,
pressing ENTER will advance the day of the
week. Therefore...

57

CVS4200 / BVS4300 Stationary Samplers

Press ENTER. Repeat the above

to 12 days.

The display will echo the last entry with

The controller has now been given a new

The following sequence of entries are

1. Press the SET key.

2. Press the PROGRAM TYPE key.

3. Press an ARROW key. Co ntinue until

procedures until all the required containers,
on their respective days, have been
allocated, or the 7 days of the week are all
selected. If all 7 days have been selected,
then conti nuous sampling will occur for up

PROGRAM TYPE <ENTERED>.

value for PROGRAM TYPE. The new
value resides in the NEW ENTRIES area
of the controller memory. To make these
changes active, press the RESTART key;
press it again to confirm your choice. The
controller will then be set to perform as a
Dual Station Sampler in c onjunction with
the parameters programmed under the

START DELAY and SAMPLE
INITIATION variables.

Summary of Sequence:
SET, PROGRAM TYPE, ARROW(S), ENTER, ARROW(S), ENTER, #,
ENTER, #, ENTER , #, ENTER, #, ENTER, #, ENTER, # , ENTER, #,
ENTER, RESTAR T, RESTART.

7.6.6.5 PROGRAM TYPE - Consecutive

made on the Touchpad to describe how
the Sampler controller is to sto re the
samples it takes, in the hardware specified
in its configuration. T he ACTIVE
SETTINGS are not being altered.

58

Consecutive is shown on the dis play (for
storage in single multiple container a rray).

CVS4200 / BVS4300 Stationary Samplers

4. Press the ENTER key.

The display will show the response

Press ENTER. T he display now reads

Press ENTER. T he display now reads

The controller has now been given a new

“CONSECUTIVE Total Bottles nn”. The
two digits, nn, will be flashing, indicating
they can be c hanged.

“nn bottles per Sample Cycle”. A
previously set value will be displayed.
One of the di gi ts is flashi ng. Using the
number keys (0-9), enter the first digit of
the number of bottles that will b e used a t
each sampling time determined by the
programming setting; enter the number of
samples to be taken at each predetermined
time. After the first digit is entered, the
second digit will flash prompting for the
remaining digit of the entry. The sampler
will repeat this quantity each time the
sampling is initiated, until the
“Total-Bottles” setting is reached.

PROGRAM TYPE <ENTERED>.

value for PROGRAM TYPE. The new
value resides in the NEW ENTRIES area of

Summary of Sequence:
SET, PROGRAM TYPE, ARROW(S), ENTER, ENTER, ##, ENTER,
RESTART, RES TA RT.

the controller memory. To make these
changes active, press the RESTART key;
press it again to confirm your choice. The
controller will then be set to perform as a
Consecutive Sampler in conjunction with the
parameters programmed under the START
DELAY and SAMPLE INITIATION
variables.

59

CVS4200 / BVS4300 Stationary Samplers

The following sequence of entries are

1. Press the SET key.

2. Press the PROGRAM TYPE key.

3. Press an ARROW key. Co ntinue until

4. Press the ENTER key.

The display will respond with the

Press ENTER. T he display now reads

7.6.6.6 PROGRAM TYPE - Multi-Composite

made on the Touchpad to describe how
the Sampler controller is to store the
samples it takes, in the hardware specified
in its configuration. T he ACTIVE
SETTINGS are not being altered.

Multi-Composite is shown on the display
(for storage in multiple container array).

message “MULTI-COMPOSITE
Total Bottles nn”. The two digits, nn, will
be flashing, indicating they can be
changed by scrolling with the arrow keys.

“nn Cycles per bottle”. A previo usly set
value is displayed. One of the digits is
flashing, prompting for a numeric entry.
Using the number keys (0 -9), select the
number of times the same bottle will be
used at the times determined by the
programming; enter the number of
samples to be taken before the stepper
advances to the next bottle. After the first
digit is entered, the second digit will
flash, prompting for the second digit of
the entry. Each sample placed in a bottle
will be a complete cycle. The program
will repeat this action each time the
sampling is initiated, until the
“Total Bottles” setting is reached.

60

CVS4200 / BVS4300 Stationary Samplers

Press ENTER. T he display now reads

The controller has now been given a new

The following sequence of entries are

1. Press the SET key.

2. Press the PROGRAM TYPE key.

3. Press an ARROW key. Co ntinue until

4. Press the ENTER key.

PROGRAM TYPE <ENTERED>.

value for PROGRAM TYPE. The new
value resides in the NEW ENTRIES area

Summary of Sequence:
SET, PROGRAM TYPE, ARROW(S), ENTER, ENTER, ##, ENTER,
RESTART, RES TA RT.

of the controller memory. To make these
changes active, press the RESTART key;
press it again to confirm your choice. The
controller will then be set to perfor m as a
Multi-Composite Sampler in co njunction
with the parameters programmed under the

START DELAY and SAMPLE
INITIATION variables.

7.6.6.7 PROGRAM TYPE - Timed Step

made on the Touchpad to describe how
the Sampler controller is to sto re the
samples it takes, in the hardware specified
in its configuration. T he ACTIVE
SETTINGS are not being altered.

Timed Step is shown on the display (for
storage in multiple container array).

61

CVS4200 / BVS4300 Stationary Samplers

Press ENTER. The display will show the

Press ENTER. The bottom line of the

Press ENTER. T he display now reads

The controller has now been given a new

response “TIMED STEP
Total Bottles nn”. The two digits, nn, will
be flashing, indicating they can be
changed by scrolling wit h the arrow keys.

display now reads “Step Intvl 00:00”. A
previousl y set value is di s played. One of
the digits is flashing, prompting for first
digit of a numeric input. The format is
HH:MM. Using the number keys (0-9),
enter the time interval the stepper MUST
advance, regardless of SAMPLE
INITIATION settings. The program will
repeat this action at the set interval except
during an ongoing sample cycle, when it
will advance the stepper after the sample
cycle is complete.

PROGRAM TYPE <ENTERED>.

value for PROGRAM TYPE. The new
value resides in the NEW ENTRIES area

Summary of Sequence:
SET, PROGRAM TYPE, ARROW(S), ENTER, ENTER, ### #, ENTER,
RESTART, RES TA RT.

of the controller memory. To make these
changes active, press the RESTART key;
press it again to confirm your choice. The
controller will then be set to perform as a
Timed Step Sampler in conjunction with
the parameters programmed under the

START DELAY and SAMPLE
INITIATION variables.

62

7.6.7 Pr ogr amming OTHER OPTIONS

This feature allows the user to change

This feature will enable or disable the

FAULT SHUTDOWN is disabled, the

7.6.7.1 OTHER OPTIONS Overview

SET or VIEW

CVS4200 / BVS4300 Stationary Samplers

This feature allows the user to SET or
VIEW the internal Real-Time clock of

the microprocessor.
This feature allows the user to SET or

VIEW the duration for which the sampler
will purge t he intake line prior to drawing
in a sample to the chamber. The
maximum allowable settin g is 99
seconds.

how the Pinch Valve will operate during
sampling cycles. The setting is dependent
upon which generation of sample the
controller is used on. If this is a new unit,
the Pinch Valve action will have been
factory set. Should the controller be used
as a retrofit into an older model, the
setting ma y have to be changed. If the
sampler has a Pinch Valve that squeezes
shut the discharge tube even during an
inactive state, this model is termed as
normally closed. Should the tubing be
shut only wh en the Pinch Valve is
energized, it is termed normally open.

This is the ONLY setting for the PVS
samplers.

ability of the controller to cease
operations when it encounters repeated
difficulties in the drawing of samples.
The controller normally will attempt to
obtain a valid sample by repetition of its
programmi ng with extended purge time s
and vacuum cycles, also extending the
time allowed for the acquisition of the
sample. When a sample is not obtained,
this fact is noted in the controller memory
and the program resumes. If after two (2)
successive attempts have failed, the
controller will Shut Down, haltin g
sampling until operator interve ntio n
clears any reason for fault and
RESTARTs the program. T hi s is not
always a required course of action. If

63

CVS4200 / BVS4300 Stationary Samplers

program will record all failures to obtain

Values retained by the controller to

When equipped with the appropriate
The following selections are all available

VIEW ONLY

samples and will wait until the next
sample initiation.

The controller will remember cond itions
encountered during normal operation.
Reasons for premature ending of a set
program will also be saved in memory.
By VIEWi ng this feature, this
information can be obtained at the ti me
the sampler is checked.

indicate number of missed samples.

hardware and with the controller running
the proper program (Multi-Composite),
the current position of the distrib uto r arm
can be determined by VIEWing this
option. The position information is
relative to the original position of t he arm
at the beginning of the pr ogram start.

Note: There is no physical “Bottle 1”,
any bottle can be determined to be #1 at
the beginning of a sample program.

under the maintenance heading and are all
for VIEWin g only. To check any of these
values or perform any tests, press VIEW,
then OTHER OP TIONS. ARROW left
or right as required until the flashing text
MAINTENANCE appears and press
ENTER. Once more, ARROW left or
right until the desired flashing text
appears, and press ENTER.

Displays the microprocessor’s serial
number.

Tests the controller’s on-boar d lithium
battery.

Tests the Touchpad keys.

Checks the main IC’s read / write
integrity.

Technicians Only! Digital Feedback from
two on-board A/D channels.

Channel 1: 4-20mA Input
Channel 2: Displays Float Voltage

64

7.6.7.2 OTHER OPTIONS - Clock

The following sequence of entries are

1. Press the SET key.

2. Press the OTHER OPTIONS key.

3. Press an ARROW key. Co ntinue until

4. Press the ENTER key.

The display shows a time / date response

Press ENTER. The display will shift its

Press ENTER. The display will shift its

is made by use of the ARROW keys. The

CVS4200 / BVS4300 Stationary Samplers

made on the Touchpad to alter the Real
Time Clock, running internally in the

controller, which is the basis for a ll timed
functions. The ACTIVE SETTINGS are
not being altered and there are no NEW
ENTRIES generated.

Clock is shown o n the display (for
updating the internal Real Time Clock).

in the form of “01:23 AM SUN
01-Jan-92”. The flashing digits are
changed, if necessary, by use of the
number keys (0-9) in the same manner as
a standard watch, in the HH:MM format.
Maximum values are 01 - 12 for the hours
pair and 00 to 59 for the minutes.
However, each digit is set separately.

flashing prompt to the AM/PM pair. Since
both characters are flashing, the selection
is made by use of the ARROW keys. The
selection cycles through AM and P M
repeatedly. Choose one.

flashing prompt to the three characters
forming the day of the week. Since all
three characters are flashing, the selection

65

CVS4200 / BVS4300 Stationary Samplers

selection cycles through the 7 days.
Choose one.

Press ENTER. The bottom line of the
Press ENTER. T he MM characters are set

Press ENTER. T he YY pair of digits are

The display now reads CLOCK

The following sequence of entries are

1. Press the SET key.

display shows a date in the format
DD-MM-YY. The DD pair is a pair of
digits with the normal range of 00 - 31. Set
by number keys (0-9) individually.

using the ARROW keys for the cho ice of
one regular c alendar month.

set using the number keys again,
corresponding to the last two digits in the
year. Set each digit individually. Press
ENTER. The date as entered is now
checked by the internal clock. An invalid
date will return the prompt to the
beginning of the date setting, after an error
message is displayed. It can then be
corrected and re-entered.

7.6.7.3 OTHER OPTIONS - Purge Time

<ENTERED>.

The controller has now been given a new
value for the REAL TIME CLOCK. The
new value is in use immediately, once set.

Summary of Sequence:
SET, OTHER OPTIONS, ARROW(S), ENTER, ##, ##, ENTER, ,
ARROWS, ENTER, ARROWS, ENTER, ##, ENTER, ARROWS,
ENTER, ##, ENTER.

made on the Touchpad to describe how
the Sampler controller is to operate some
of the hardware specified in its
configuration. The ACTIVE SETTINGS
are not being altered.

66

CVS4200 / BVS4300 Stationary Samplers

2. Press the OTHER OPTIONS key.

3. Press an ARROW key. Co ntinue until

4. Press the ENTER key.

The display shows the response “PURGE
Press ENTER. T he display now reads

The controller has now been given a new

Purge Time is shown on the display (for
operating time when the sampler is in the
purge mode of the Sample cycle,
pressurizing the inlet hose to clear it of
obstructions and fluid).

TIME seconds”. The first digit is flashing.
A previously set value may be displa yed.
Using the number keys (0 -9) enter the
time in seconds that will represent the
basic purge time. Multiples of this time
may be used by the controller to facilitate
the removal of obstructions in the in le t
hose.

PURGE TIME <ENTERED>.

value for PURGE T IME. The new value
resides in the NEW ENTRIES area of the

Summary of Sequence:
SET, OTHER OPTIONS, ARROW(S), ENTER, ##, ENTER, RESTART,
RESTART.

controller memory. To make these changes
active, press the RESTART key; press it
again to confirm your choice. The
controller will then be set to perform in
conjunction with the parameters
programmed under the START DELAY,

SAMPLE INITIATION and
PROGRAM TYPE settings.

67

CVS4200 / BVS4300 Stationary Samplers

The following sequence of entries are

1. Press the SET key.

2. Press the OTHER OPTIONS key.

3. Press an ARROW key. Co ntinue until

4. Press the ENTER key.

The display will show the response

Press ENTER. The display now reads

7.6.7.4 OTHER OPTIONS - Pinch Valve

made on the Touchpad to describe how
the Sampler controller is to operate some
of the hardware specified in its
configuration. The ACTIVE SETTINGS
are not being altered.

Pinch Valve is shown on the dis play.

The Pinch Valve option is for control of the solenoid activated pinch bar
determining vacuum / pressure modes in the sampler operation. This is a factor
usually set at the factory because it relates directly to the equipment
specification. It is alterable on ly to facilitate the use of the controller in plant s
that have a variety of equi pment confi gurations.

“PINCH VALVE Normally Open /
Closed”. All the characters on the bottom
line are flashing, therefore the choice is
made with the ARROW keys. The choice
is a toggle between ‘Open’ and ‘Closed’.
It represents the state of the pinch valve
when the equipment is idle. Note: The

sampler will not perform properly if th is
setting is in erro r.

68

PINCH VALVE <ENTERED>.

CVS4200 / BVS4300 Stationary Samplers

The controller has now been given a new

The following sequence of entries are

1. Press the SET key.

2. Press the OTHER OPTIONS key.

3. Press an ARROW key. Co ntinue until

4. Press the ENTER key.

value for PINCH VALVE. The new value
resides in the NEW ENTRIES area of the

Summary of Sequence:
SET, OTHER OPTIONS, ARROW(S), ENTER, ARROW(S), ENTER,
RESTART, RES TA RT.

controller memory. To make these changes
active, press the RESTART key; press it
again to confirm your choice. The
controller will then be set to perform in
conjunction with the parameters
programmed under the START DELAY,

SAMPLE INITIATION and
PROGRAM TYPE settings.

7.6.7.5 OTHER OPTIONS - Fault Shutdown

made on the Touchpad to describe how
the Sampler controller is to operate some
of the hardware specified in its
configuration. The ACTIVE SETTINGS
are not being altered.

Fault Shutdown is shown o n the display.

Fault Shutdown is used to control whether the sampler will cease taking

samples after a predetermined number of unsuccessful attempts.

69

CVS4200 / BVS4300 Stationary Samplers

The display will show the response

Press ENTER. T he display now reads

The controller has now been given a new

To see current settings, press the VIEW button,

“FAULT SHUTDOWN Enabled /
Disabled”. All the characters on the
bottom line are flashing, therefore the
choice is made with the ARROW keys.
The choice is a toggle between ‘Enabled’
or ‘Disabled’. If disabled, the co ntroller
will make a lengthy attempt to obtain a
sample, the n return control to the
SAMPLE INITIATION to try aga in.
The controller will accumulate a count of
unsuccessful (abandoned) attempts.

FAULT SHUTDOWN <ENTERED>.

7.6.8 Viewing Information

7.6.8.1 Viewing Programmed Information

value for FAULT SHUTDOWN. The
new value res ides in the NEW ENTRIES

Summary of Sequence:
SET, OTHER OPTIONS, ARROW(S), ENTER, ARROW(S), ENTER,
RESTART, RES TA RT.

area of the controller memory. To make
these changes active, press the
RESTART key; press it again to confirm
your choice. The controller will then b e
set to perform in conjunct ion with the
parameters programmed under the

START DELAY, SAMPLE
INITIATION and PROGRAM TYPE

settings.

followed by the appropriate button as described
on its label.

The display will show current pa r a meter settings,
beginning with the requested major category.

70

Press the ENTER key. If more information is
Press the VIEW key.

Press the VIEW key.

Press the VIEW key.

Press the VIEW key.

entry.

START DELAY

SAMPLE INITIATION

CVS4200 / BVS4300 Stationary Samplers

available for a given parameter , it will be
displayed. Continue pressing ENTER until no
new information is presented. The display will
“wrap-around” to its first message. Where timing
or counting are used, active values will be shown
which can be used to monitor the progress of the
parameter.

Press the START DELAY key.

Sequence: VIEW, START DELAY, ENTER,
(ENTER).

Press the SAMPLE INITIATION key.

Sequence: VIEW, SAMPLE INITIATION,

ENTER, (ENTER).

PROGRAM TYPE

Press the PROGRAM TYPE key.

Sequence: VIEW, PROGRAM TYPE, ENTER,

(ENTER).

OTHER OPTIONS

Press the OTHER O PTIONS key.

Use ARROW keys to navigate to desired option
on the flashing display.

Press ENTER to view.

Available options are:

Clock - Time, Date (including Day)
Purge Time - Time in seconds
Pinch Valve - Normally Open or Closed
Fault Shutdown - Enabled or Disabled
Sampler Status - Error and syste m messages that

have been lost from the display by keyboard

71

CVS4200 / BVS4300 Stationary Samplers

Cycles Abandoned - Counter

Press the VIEW key.

Press the VIEW key.

ACTIVE SETTINGS

Bottle Position - Relative position of distributor
Maintenance

- Serial Number - Unit identification number

- Analog Channels - /D output display,

- Backup Battery Test - Test of onboard

Lithium battery

– Memory Check - Test of controller

RAM/ROM locations

– Keypad Check - Test of Touchpad

(Under Ma intenance, ARROW to selection, then
display with ENTER.)

Press the ACTIVE SETTINGS key.

The display will show “ACTIVE SETTINGS
‘ENTER’ to list”.

NEW ENTRIES

Press the ENTER key. The dis play will show the
START DELAY programming.

Continuously pressing t he ENTER key will
display all of the active program selections and
return to the original display.

Sequence: VIEW, ACTIVE SETTINGS,
ENTER(S).

Press the NEW ENTRIES key.
If no “NEW ENTRIES” have been made, the

display will show “No New Entries View Active
Set”. If new parameters have been set, but the unit
hasn’t been RESTARTed, the display will show
“NEW ENTRIES ‘ENTER’ to list”. Press the

ENTER key. The display will show the START
DELAY progra mming. Continuously pressing the
ENTER key will displa y all of the program

selections, SUBSTITUTING new parameters where
they’ve been changed, and return to the original
display.

72

Sequence: VIEW, NEW ENTRIES, ENTER(S).

7.6.8.2 Viewing Generated Information

Press the VIEW key.

Press the VIEW key.

Press the VIEW key.

The following sequence of entries are made on the Touchpad to examine the
sample information collected or generated by the controller and stored in its
memory.

SAMPLES TAKEN

REMAINING PULSES

CVS4200 / BVS4300 Stationary Samplers

Press the SAMPLES TAKEN key.

The display will show a count of all sa mples taken
during the current progr am. To make t hese changes
active, press the RESTART key; press it again to
confirm your choice. The contro lle r will then wait
until the designated time before starting its
sampling program.

REMAINING TIME

Press the REMA I N ING PULSES key.
The display will show a countdown of incoming

pulses, decreasing from the programmed value.
Only available when either START DELAY or
SAMPLE INITIATION are usi ng their Pulse
Input options or pulses generated by the 4-20mA
input option. The information is updated
continuously and can be left on the display as a
progress indicator.

Sequence: VIEW, REMAINING PULSES.

Press the REMA ININ G TIME key.

The display will show various time counters
dependent on the programming of the START
DELAY and SAMPLE INITIATION parameters.
Priority goes to START DELAY, which will show
an increme nting time for event related delays or
decrementing time f or time related delays. The
display will then yield to SAMPLE INITIATION
for an elapsed time display for event related inputs
and Remaining Time display for time related
inputs.

Sequence: VIEW, REMAINING TIME.

73

CVS4200 / BVS4300 Stationary Samplers

7.7 Test Procedure

1. Set volume control tube to 200 cc.

2. Set level probe 1” above bottom of volume control tube.

3. Turn on power. Place the “RUN/OFF” switc h in the “RUN” position.

After an initial delay of 15 to 20 sec onds, the display will show a two line
message, the top line displaying SAMPLER HALTED and an alternating
message on the second line displaying why the sampling procedure was
interrupted as well as the event time and date.

4. Enter the following sampling program:

a) Set purge time to 10 seconds. See OTHER OPTIONS
b) Set interval time to 2 minutes. See SAMPLE INITI A TION
c) Set program type to composite. See PROGRAM TYPE
d) Set to terminate after 2 samples.
f) Press RESTART, RESTART (to confirm)

5. Vie w the following displays:

a) Samples taken - should read 0
b) Remaining time - should be counting down from 2 minutes.

6. Sampling should begin when remaining time indicator reaches 0.

7. Upon completion of sample, view the following displays:

a) Samples taken - should read 1.
b) Remaining time - should be counting down from 5 minutes.

8. Press MANUAL PURGE. Press again to confirm.

9. Press MANUAL ADVANCE. Press again to confirm.

10. Press MANUAL SAMPLE. Press again to confirm.

11. If equipped with sample container full option, short circuit level probes in

container (no dangerous voltage present - 16 Vdc). The message
“SAMPLER HALTED External Stop” should appear on the display, the
bottom line flashing.

12. Press RESTART, RESTART, the message “RESTART <Completed>”

should appear on the display.

8. Troubleshooting

SAMPLER INOPERATIVE: Check sup p l y volt a ge .

POWER ON BUT PU MP WILL NOT START: Check wiri ng from

sampler controller to pump. Ensure controller is properly connected
into harness.
a) Pump defective.
b) Sampler controller defective.

74

CVS4200 / BVS4300 Stationary Samplers

NOTE

SAMPLER WILL NOT TAKE TIMED SA MPLE:

a) Sampler controller defective.

SAMPLER WILL NOT INITIATE FROM AN EXTERNAL
CONTACT: Check wiring from terminal strip to sampler controller

plug. (Terminals 12 & 13)
a) Sampler controller is defective.
b) Sampler controller not programmed for External Contact input.

PUMP IS OPERATING, NO AIR PURGE OF INTAKE LI N E: Check for
blockage of intake hose by removing ho s e from the me t ering chambe r volume
control tube. Initiate manual sample and check for pressure/vacuum throughout
sample cycle.
a) If pressure/vacuum is present throughout sample c ycle, intake hose is

plugged.

b) Pinch valve may not be c l osing the disc harge hose with sufficie nt force

to ensure an adequate seal . Increase tension by tightening the lock nuts on

the pinch valve tension springs and/or replace discharge hose.
c) Check for disconnected air lines from pump to metering chamber.
d) Check for loose gland nuts.
e) Pump flapper valves defective.

PURGE CYCLE OPERATIVE, NO SUCTION: Pinc h va lve may no t be
closing the discharge hose with sufficient force to ensure an adequate seal.
Increase te nsion by tightening the lock nuts on the pinch valve t ension springs
and/or replace discharge hose.
a) Check air lines, metering chamber O-rings and fittings for leakage.
b) Solenoid valve clogged or not working.
c) Intake tube, not below water level.

SAMPLER HAS HAD AN “EXTERNAL STOP”: Contact not supp lied via
terminal block.
a) Sample container Full Level Probe has been triggered.

LEVEL SENSIN G P ROBE INOPERATIVE: Check wire contact
connectio ns on volume control tube and level sensing probe. Check wiring to
the sampler controller plug.
a) Sampler controller defective
b) Coating on probe and/or Volume Control Tube.

9. Maintenance

The following maintenance procedures should be performed at
regular intervals.

9.1 General Maintenance

1. Disconnect power.

2. Open metering c hamber by removing wing nuts and chamber cover.

3. Clean volume control tube and level sensing probe with mild detergent.

Alternatively, exchange tube and probe with clean set. Do not use any
cleaner which may be harmful to the metering chamber cover. Do not use

75

CVS4200 / BVS4300 Stationary Samplers

CAUTION

solvents such as acetone, benzene, carbon tetrachloride or lacquer thinners.
Grease and oil may be removed with kerosene or aliphatic naphtha (non­aromatic).

4. Check and clean O-rings in metering chamber cover.

Replace if damaged, worn or br ittle .

5. Clean metering chamber using mild detergent.

Do not use any cleaner which may be harmful to the clear acrylic (for
example, petrochemical solvents, as noted above). Do not use abrasives or
“scouring” compounds.

6. Check discharge tubing for wear and replace as necessary.

7. Check pinch valve to ensure free movemen t.

8. If possible, run sampler through several sampling sequences in clean

water.

9.2 Maintenance of Refrigerator

9.2.1 Cleaning

Never use acids, chemical thinner, gasoline, benzene, or
the like for cleaning ANY part of the refrigerator. Boiling
water and benzene may deform or damage the plastic parts.

1. Turn off po wer.

2. Remove containers and trays.

3. Wa sh interior liner with a warm solution of two tablespoons of baking

powder per quart of water. Rinse and wipe dry. Do not use soaps,
detergents, scouring powder, spray cleaners or the like on the interior liner
as it may cause odors in the refrigerator compartment.

4. Wipe the exterior surface with a soft cloth dampened with soapy water and

then dry with another soft cloth. Common appliance spray cleaner may be
used for exterior only. Use only mild soapy water to clean door gaskets.

9.2.2 Te m perature Control

Refrigerator temperature can be regulated by adjusting the cold control. The
closer to “MAX” position, the lower the temperature. Recommended setting is
between “3 – 4”. However, refrigerator temperature will vary depending on the
ambient air temperature and on the fre quency with which the door is opened.
This refrigerator may cycle on and off more frequently than regular size
refrigerators. This is normal because of its compactness.

76

9.3 Testing System Vacuum

Using the (optional) built-in pressure/vacuum gauge, take a reading to ensure
system has no leaks. Optimal pressure is above 28 psi. Optimal vacuum should
be 12 psi or better.

If the system is not performing at its peak, try the following:

CVS4200 / BVS4300 Stationary Samplers

1. Check intake hos e for leaks/kinks.

2. Check discharge tube, ensure it has no lea ks and is in good shape.

3. Check all fittings to ensure they are tight.

4. Make sure when tightening and loosening the gland nuts on the top of the

metering c hamber that the bottom nut is held secure and does not move on
the cover. E nsure the top nut is securel y tightened, a nd use a wrench if
necessary.

5. If system is still not performing at its peak, inspect pump and all pump

tubing.

9.4 Controller Battery Replacement Procedure

1. Make sure the controller is powered.

2. Remove Touchpad (clear) cover from the controller, remembering to

handle internal ribbon cable and connector with care.

3. Locate the b a tte ry holder on the normal left side of the circuit board. The

battery is a 1/2” cylinder about 1” in length. The positive (+) end of the
battery has a raised button. Note the button’s relative position in the
holder. It should be pointing away from the display side of the board.

9.5 Storage

4. Pla c e new battery in holder, noting position of button with respect to the

polarity indicators in the holder .

5. Check battery status, as above. If necessary, locate small white button at

top of the control board (under display) and push to restore factory
defaults.

6. Replace cover securely and re-enter user settings.

If the sampler is not to be used for a n extende d period of time, store the unit in
an upright position in a warm, dry location. If the unit has an integral battery,
recharge the unit prior to storage.

Acceptable storage temperature: –30 to 60 °C (–22 to 140 °F)

77

CVS4200 / BVS4300 Stationary Samplers

78

Sensor

LOAD

Sinking (NPN) Switch

Sensor

LOAD

Sourcing (PNP) Switch

Appendix A. Principles of Operation

Switching Methods ( Sinking / NPN)

The Sinking method connects or switches one side of the load to the negative
(-) side of the power supply. The positive (+) side is connected directly to the
other side of the load as shown. “NPN” refers to the type of transistor used to
act as a switch in this type of solid-state sensor.

Switching Methods ( Sourcing / PNP)

The Sourcing method connects or switches one side of the load to the positive
(+) side of the power supply. The negative (-) side is connected directly to the
other side of the load as shown. “PNP” refers to the type of transistor used to
act as a switch in this type of solid-state sensor.

A-1

TABLE B-1. CVS/BVS Replacement Parts

Appendix B. Parts List

This is a partial list of most frequently requested CVS/BVS Sampler
replacement parts.

Part No.

SAMPLE CONTAINERS

27956 27-03-07 2.5 Gallon (10 L) Glass with Teflon Cap
26900 22-10-32 Discrete Bottle Tray (24-Bottle x 0.5 L)

SINKER / STRAINER
26915 23-28-01-3/8 Sinker (Lead): 3/8 System
27820 23-28-01-5/8 Sinker (Lead): 5/8 System
26914 23-28-11 Sinker Strainer (Stainless Steel): 3/8 System

INTAKE TUBE
27166 PVC Standard: 3/8 in. ID (per foot)
26926 PVC Standard: 5/8 in. ID (per foot)

INTAKE TUBE WITH SINKER/STRAINER

27949 26-02-01 PVC: 3/8 in. ID: 25 ft with Lead Sinker

Old Part No.
(Prior to 8-1-11) Description

26925-L50-E1 26-02-01-050 PVC: 3/8 in. ID: 50 ft with Lead Sinker
26925-L100-E1 26-02-01-100 PVC: 3/8 in. ID: 100 ft with Lead S i nker
26925-L150-E1 26-02-01-150 PVC: 3/8 in. ID: 150 ft with Lead Sinker
26926-L25-E1 26-02-02 PVC: 5/8 in. ID: 25 ft with Lead Sinker
26926-L50-E1 26-02-02-050 PVC: 5/8 in. ID: 50 ft with Lead Sinker
26926-L100-E1 26-02-02-100 PVC: 5/8 in. ID: 100 ft with Lead Sinker
26926-L150-E1 26-02-02-150 PVC: 5/8 in. ID: 150 ft with Lead Sinker

DISCHARGE TUBE
26898 26-03-01 Discharge Tubing (Latex): 3/8" ID: 3 Ft
27951 26-03-06 Discharge Tubing (Latex): 5/8" ID: 3 Ft

B-1

Appendix B. Parts List

METERING CHAMBER

26906 24-01-01 Metering Chamber (Acrylic): 3/8 System, 0.5 L
27941 24-01-02 Metering Chamber (Acrylic): 5/8 System, 0.5 L
28459 24-01-03 Metering Chamber (Acr ylic): All Systems, 1000 cc
26905 24-01-08 Metering Chamber (Pyrex): 3/8 System, 0.5 L
28238 24-01-09 Metering Chamber (Pyrex): 3/8 System, 1 L
27942 24-01-10 Metering Chamber (Pyrex): 5/8 System, 500 cc
28239 24-01-11 Metering Chamber (Pyrex): 5/8 System, 1000 cc
28391 50-21-01 Metering Chamber Cover: 3/8 D e lrin
28392 50-21-04 Metering Chamber Cover: 5/8 Delrin
28393 50-21-06 Metering Chamber Cover: 3/8 Teflon
28394 50-21-07 Metering Chamber Cover: 5/8 Teflon
26919 23-03-04 Volume Control Tube: 5/8 System, 0.5 L
27939 23-37-02 Liquid Sensing Rod for Metering Chamber: 1 L
26908 28-05-02 O-ring: Metering Chamber (Buna-N)
26910 28-05-03 O-ring: Barrier Valve (Viton)

VACUUM PUMP
28333 32-01-01 Vacuum Pump – 12 Vdc
28009 32-02-05 Pump Assembly (including solenoids and fixtures) – 12 Vdc
26895 32-08-10 Brush & Lead Wire Kit (for 32-01-01)

REFRIGERATOR

28010 32-03-12 Large Refrigerator - Glass Door (Discrete & Dual Station)

DISTRIBUTOR / STEPPER

28287 32-04-01 Distributor (Teflon)
28011 32-05-01 Stepper Motor
28296 32-06-01 Distributor (PVC)

ENCLOSURE

28170 22-13-02 BVS Cabinet (Powder coated steel)

B-2

28175 22-15-00 BVS Cabinet #14 304/2B SS Unfinished

Appendix B. Parts List

OTHER COMP ONENTS

28005 30-DC-MFCB Multi-Function Input Controller (12 Vdc)
28012 50-02-13 Pinch Va lve Assembly (12 Vdc All Systems)
27826 28-11-41 Quick Connector Assembly 3/8 in. System
27998 28-11-42 Quick Connector Stem ( SS): 1/2 in.
MANUAL Hard Copy of Manual
26950 Battery: 12 Vdc, 17 Ah, Sealed Rechargeable
28337 55-15-23 Power Supply: 13.6 Vdc, 10.5 A, 110 to 240 Vac

B-3

Appendix B. Parts List

B-4

Rate Flow Maximum

Rate Flow Average

Q =

minuteper volumeAverage

samplesbetween Volume

t =

58333.

gal/min 300

gal/min 175

Rate Flow Maximum

Rat

e Flow Average

Q ===

gal/min 175 Average

samplesbtwn Gallons 5250

or min/sample 30t =

Appendix C. Programming 4-20mA for Flow Proportional Sampling

In order t o use the 4-20mA interface with a PVS Sampler, calculations must be
made based on flow. The 4-20mA input is a signal that corresponds to the flow
meter’s output. 20mA is equal to the maximum flow, and 4mA is equal to the
minimum fl ow. The co n troller requires a number which reflects the maximum
flow going t hrough the sampler.

The PVS Controller generates 100 pulses per minute internally at the
maximum flow. This number decreases with the amount of flow proportional
to the 4-20mA scale. The Controller requires the number of pulses at maximum
flow. In order to calculate this, use the following formula:

1. Calculate Q. Q = Average flow rate divided by the maximum flow rate.

2. Calculate t.

t is the number of minutes per sample you would like for an average flow rate.
Either choose how long between samples you’d like for average flow, or
calculate based on volume above.

3. Multiply Q x t x 100 ( 100 pulses at max flow)

This is the number you will input into the Controller at the 4-20mA dialogue.

Example

You want to collect samples every 30 minutes. On average, 175gal/min flows
by. Maximum is 300gal/min.

1. Calculate Q.

2. Calculate t.

3. Multiply Q x t x 100 pulses = 1750 pulses/sample

Enter 1750 into the Controller a t the 4-20mA dialogue.

C-1

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