CVS4200 / BVS4300 Stationary Samplers Revision: 8/13 C o p y r i g h t © 2 0 1 1 - 2 0 1 3 C a m p b e l l S c i e n t i f i c , I n c .
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 CAMPBELL SCIENTIFIC, INC. are warranted by Campbell Scientific, Inc.
Assistance Products may not be returned without prior authorization. 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 Scientific company serves your country. To obtain a Returned Materials Authorization (RMA), contact CAMPBELL SCIENTIFIC, INC., phone (435) 227-9000.
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. Cautionary Statements...............................................1 3. Initial Inspection .........................................................2 4. Quickstart ....................................................................2 4.1 4.2 4.
Table of Contents 7. Operation ...................................................................26 7.1 7.2 7.3 7.4 7.5 7.6 7.7 Use in Adverse Conditions ................................................................ 26 7.1.1 Exhaust....................................................................................... 26 7.1.2 Instrument Air ............................................................................ 26 7.1.3 Freezing Conditions ......................................................
Table of Contents 8. Troubleshooting........................................................73 9. Maintenance ..............................................................74 9.1 9.2 General Maintenance .........................................................................74 Maintenance of Refrigerator ..............................................................75 9.2.1 Cleaning ......................................................................................75 9.2.2 Temperature Control ........
Table of Contents iv
CVS4200 / BVS4300 Stationary Samplers 1. Introduction The CVS4200-series and BVS4300-series Stationary Samplers are automatic liquid samplers for water and wastewater applications. They use reliable, longlasting, vacuum technology. This sampling method results in faster sample draws and less disturbance of the sample contents. There is also less wear on the tubing, resulting in less-frequent maintenance.
CVS4200 / BVS4300 Stationary Samplers CAUTION • 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.
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.
CVS4200 / BVS4300 Stationary Samplers 4.3 Wiring FIGURE 4-2. Terminal block wiring diagram 4.3.1 CVS4200 Wiring Procedure NOTE 4 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).
CVS4200 / BVS4300 Stationary Samplers 4.3.2 BVS4300 Wiring Procedure NOTE 4.4 1. Remove four retaining bolts (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 chassis is mounted on are designed to fully extend from the cabinet. 4.
CVS4200 / BVS4300 Stationary Samplers Press “ENTER” twice SAMPLE INITIATION (parameters for frequency of samples). Select, using arrows, which parameter you would like, and adjust settings (see Section 7.6.5, Programming SAMPLE INITIATION). Options: DISABLE; 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).
CVS4200 / BVS4300 Stationary Samplers 4.4.3 Viewing Program Parameters To view the program or remaining time, press the “VIEW” button, followed by the button representing what you want to see; for example, “REMAINING TIME”. 4.4.4 Setting Programming Parameters Individually To modify any of the settings individually, press the “SET” button followed by the appropriate button based on what parameter is being changed. 4.
CVS4200 / BVS4300 Stationary Samplers Operating temperature for CVS4200 indoor samplers is 10º to 50ºC (50º to 122ºF), adaptable down to 0ºC (32ºF) upon request. The operating temperature for BVS4300 outdoor samplers with heater and insulation is –40º to 50ºC (–40º to 122ºF). Without insulation and heater, the BVS4300 operating temperature is 0º to 50ºC (32º to 122ºF). Samples can be triggered by a variety of means.
CVS4200 / BVS4300 Stationary Samplers 5.1 .1 Components 5.1.1 BVS4300 Sampler Components 63.0” (1600 mm) FIGURE 5-1.
CVS4200 / BVS4300 Stationary Samplers TABLE 5-1.
CVS4200 / BVS4300 Stationary Samplers 5.1.2 CVS4200 Sampler Components FIGURE 5-2.
CVS4200 / BVS4300 Stationary Samplers TABLE 5-2.
CVS4200 / BVS4300 Stationary Samplers 5.1.3 Sampler Vacuum System Components FIGURE 5-3.
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 through using a vacuum and compressor. 3 Touchpad Controller Controls sampler program and offers status feedback on LCD.
CVS4200 / BVS4300 Stationary Samplers 5.2 Sample Container Options TABLE 5-4. Sample Container Options Feature Description Composite (single) 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 Discrete (multiple) containers 0.
CVS4200 / BVS4300 Stationary Samplers FIGURE 5-4. Discrete removable bottle tray (24 bottles) 5.3.2 Composite Sampling Composite sampling is for drawing water samples into one large container. This is the simplest way of taking samples and typical for most situations where a sampler is set up to measure effluent in one location. It is also significantly less expensive than discrete sampling. FIGURE 5-5. Composite two gallon bottle with lid 5.
CVS4200 / BVS4300 Stationary Samplers FIGURE 5-6. Lead sinker FIGURE 5-7. Stainless-steel sinker/strainer 5.5 Special Systems 5.5.1 5/8 in. Systems In applications with large particles or 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.
CVS4200 / BVS4300 Stationary Samplers sample). TABLE 5-5 outlines the key changes made to the sampler for a sanitary system. TABLE 5-5.
CVS4200 / BVS4300 Stationary Samplers 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 valves, 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 system.
CVS4200 / BVS4300 Stationary Samplers 6. Specifications Features: • Rapid transport velocities of samples (horizontal draws 76.2 m (250 ft) at 0.8 m s–1 (2.5 ft s–1), meaning more accurate samples, even of solids. • All information is easily controlled and viewable on a 2 by 16 character backlit LCD.
CVS4200 / BVS4300 Stationary Samplers 6.1 BVS4300 Outdoor Stationary Sampler Specifications TABLE 6-1. BVS4300 Sampler Specifications Dimensions Height: 1.6 m (63 in) Width: 0.66 m (26 in) Depth: 0.66 m (26 in) Weight Refrigerated Weight: 141 kg (310 lb) Non-Refrigerated Weight: 109 kg (240 lb) Enclosure NEMA 4 weatherproof 14-gauge steel enclosure with heat cured polyester-based powder paint for corrosion resistance, and lockable door with one set of keys.
CVS4200 / BVS4300 Stationary Samplers 6.2 CVS4200 Indoor Stationary Sampler Specifications TABLE 6-2. CVS4200 Sampler Specifications Refrigerated Composite: Dimensions 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.
CVS4200 / BVS4300 Stationary Samplers TABLE 6-4. Controller Specifications SAMPLE INITIATION PROGRAM TYPE CLOCK PINCH VALVE PURGE CYCLE SUCTION CYCLE Disabled No sample initiation. Interval Time Pulse Count 4-20mA External Contact Composite Multi-Composite Consecutive Daily Cycle Timed Step Real Time Clock Sample release Draw and purge time Variable Adjustable up to 999 hours, 99 minutes. Adjustable, up to 9,999,999. Adjustable, up to 9,999,999 (4 to 20 mA = 0 to 100 pulses/min).
CVS4200 / BVS4300 Stationary Samplers 6.4 Vacuum System Specifications TABLE 6-5. Vacuum System Specifications 6.5 Feature Description Switches 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). Sample Volume Adjustable, 50 to 500 cc Adjustable, 50 to 1,000 cc Maximum Horizontal Transport Distance 76.2 m (250 ft); assumes no vertical lift Maximum Vertical Lift 8.2 m (27 ft) for 3/8 inch system 6.
CVS4200 / BVS4300 Stationary Samplers TABLE 6-7. Horizontal Lift Distance System Size 7.6 m (25 ft) 15.2 m (50 ft) 22.9 m (75 ft) 30.5 m (100 ft) 53.3 m (175 ft) 61 m (200 ft) 76.2 m (250 ft) 3/8 inch 2.16 m s-1 (7.1 ft s-1) 1.89 m s-1 (6.2 ft s-1) 1.71 m s-1 (5.6 ft s-1) 1.52 m s-1 (5 ft s-1) 1.22 m s-1 (4 ft s-1) 1.13 m s-1 (3.7 ft s-1) 0.79 m s-1 (2.6 ft s-1) 5/8 inch (composite samplers only) 1.52 m s-1 (5 ft s-1) 1.43 m s-1 (4.7 ft s-1) 1.31 m s-1 (4.3 ft s-1) 1.28 m s-1 (4.
CVS4200 / BVS4300 Stationary Samplers 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 / velocity = min. purge time). NOTE Adding a few seconds 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.
CVS4200 / BVS4300 Stationary Samplers 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. NOTE As the interior floor of the cabinets is not insulated, an added insulating factor is to fill the cavity under the cabinet between the mounting legs. This can best be accomplished using 5 cm (2 in) foam board (available from your local building supply store).
CVS4200 / BVS4300 Stationary Samplers 7.3 Operating Sequence 7.3.1 Sampling Sequence SAMPLING PROCESS: 1. High 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. The sample is then released into either one composite container or one of several discrete containers.
CVS4200 / BVS4300 Stationary Samplers 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.
CVS4200 / BVS4300 Stationary Samplers CAUTION 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 Liquid Sensing Rod 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.
CVS4200 / BVS4300 Stationary Samplers FIGURE 7-1. Battery performance curve 7.5.2 Sampler Controller Backup Battery The controller contains a 3.6 V lithium 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.
CVS4200 / BVS4300 Stationary Samplers 1. VIEW, OTHER OPTIONS 2. Select MAINTENANCE, ENTER 3. Select B/U BATTERY TEST, ENTER 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 ENTRIES will be acted upon unless the controller is RESTARTed.
CVS4200 / BVS4300 Stationary Samplers 7.6.2 Touchpad Keys TABLE 7-1. Touchpad Button Descriptions 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 visible under the function can be stepped through using the ENTER key. The SET key is used to change program settings or the entire sampling program.
CVS4200 / BVS4300 Stationary Samplers 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.
CVS4200 / BVS4300 Stationary Samplers TABLE 7-1. Touchpad Button Descriptions Button Description MANUAL PURGE. Purges the intake line independent of program control, as long 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 purging to continue until the key is released. MANUAL ADVANCE.
CVS4200 / BVS4300 Stationary Samplers will begin again. There is no loss of count the sample cycle. Pulse requirements 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 internal pulses proportional to the incoming 4-20mA signal.
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, dependent on the SAMPLE INITIATION mode chosen. Deposits are made to as many as 9 containers per day, to a cumulative total of 24 containers.
CVS4200 / BVS4300 Stationary Samplers This option will allow the controller to determine the sampler’s start of operation based on external pulses. Pulses fed to an internal accumulator in the controller will be compared to the setting entered by the operator. Pulse requirements of the system are detailed in the specifications.
CVS4200 / BVS4300 Stationary Samplers 2. Press the START DELAY key. 3. Press an ARROW key. Continue until Time/Day is shown on the display. 4. Press the ENTER key. When setting the time, a single flashing digit indicates an input from a numeric key is required. Press a number key to enter a value. The next digits flash 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.
CVS4200 / BVS4300 Stationary Samplers The controller has now been given a new 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. Summary of Sequence: SET, START DELAY, ARROW(S), ENTER, #, #, #, #, ENTER, ARROW(S), ENTER, ARROW(S), ENTER, RESTART, RESTART. 7.6.4.
CVS4200 / BVS4300 Stationary Samplers Press a number key (0-9) to replace any 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 . 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).
CVS4200 / BVS4300 Stationary Samplers 4. Press the ENTER key. The display will show a new screen 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.
CVS4200 / BVS4300 Stationary Samplers 7.6.4.5 START DELAY using External Contact The following sequence of entries are made on the Touchpad to create a future starting time for the operation of the Sampler. The ACTIVE SETTINGS are not being altered. 1. Press the SET key. 2. Press the START DELAY key. 3. Press an ARROW key. Continue until External Contact is shown on the display. 4. Press the ENTER key. The display will echo the last entry with .
CVS4200 / BVS4300 Stationary Samplers 1. Press the SET key. 2. Press the START DELAY key. 3. Press an ARROW key. Continue until Level Control is shown on the display. 4. Press the ENTER key. The display will change to read “Minimum 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. Press a number key (0-9). The number will replace the current number and advance the flashing prompt to the next digit.
CVS4200 / BVS4300 Stationary Samplers Summary of Sequence: SET, START DELAY, ARROW(S), ENTER, ##, ENTER, RESTART, RESTART. 7.6.5 Programming 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.
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. 7.6.5.2 SAMPLE INITIATION using Interval Time The following sequence of entries are made on the Touchpad to form a basic operating parameter for operation of the sampler.
CVS4200 / BVS4300 Stationary Samplers When the five 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. The display will echo the last entry with .
CVS4200 / BVS4300 Stationary Samplers 3. Press an ARROW key. Continue until Pulse Input is shown on the display. 4. Press the ENTER key. The display will show a new screen 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.
CVS4200 / BVS4300 Stationary Samplers 7.6.5.4 SAMPLE INITIATION using 4-20mA Input The following sequence of entries are 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 cycle. The ACTIVE SETTINGS are not being altered. 1. Press the SET key. 2. Press the SAMPLE INITIATION key 3. Press an ARROW key. Continue until 420mA Input is shown on the display. 4.
CVS4200 / BVS4300 Stationary Samplers The display will echo the last entry with . 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). The controller has now been given a new value for SAMPLE INITIATION. The new values reside in the NEW ENTRIES area of the controller memory.
CVS4200 / BVS4300 Stationary Samplers The display will echo the last entry with . The controller has now been given a new value for SAMPLE INITIATION. 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 a contact closure has been received before taking a sample. Summary of Sequence: SET, SAMPLE INITIATION, ARROW(S), ENTER, RESTART, RESTART. 7.6.
CVS4200 / BVS4300 Stationary Samplers 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. 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, dependent on the SAMPLE INITIATION mode chosen.
CVS4200 / BVS4300 Stationary Samplers 3. Press an ARROW key. Continue until Composite is shown on the display (for storage in single container). 4. Press the ENTER key. The display will respond with the message “Terminate After 0003000 Samples”. The numerical value will be whatever value was last placed in the controller’s memory, usually after previous programming.
CVS4200 / BVS4300 Stationary Samplers 7.6.6.3 PROGRAM TYPE - Daily Cycle The following sequence of entries are made on the Touchpad to describe how the Sampler controller is to store the samples it takes, in the hardware specified in its configuration. The ACTIVE SETTINGS are not being altered. 1. Press the SET key. 2. Press the PROGRAM TYPE key. 3. Press an ARROW key. Continue until Daily Cycle is shown on the display (for storage in a single container or a multiple container). 4. Press the ENTER key.
CVS4200 / BVS4300 Stationary Samplers value is required, the value has been changed or the value is zero, pressing ENTER will advance the day of the week. Therefore... Press ENTER. Repeat the above 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.
CVS4200 / BVS4300 Stationary Samplers 1. Press the SET key. 2. Press the PROGRAM TYPE key. 3. Press an ARROW key. Continue until Daily Cycle is shown on the display. 4. Press the ENTER key. The display will show the response “DAILY CYCLE Total Bottles nn“. The two digits, nn, will flash, indicating they can be changed . In this application, the number of bottles must be set to 24. Press ENTER. The second line of the display will change to show a day of the week.
CVS4200 / BVS4300 Stationary Samplers The display will echo the last entry with PROGRAM TYPE . The controller has now been given a new 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 conjunction with the parameters programmed under the START DELAY and SAMPLE INITIATION variables.
CVS4200 / BVS4300 Stationary Samplers The display will show the response “CONSECUTIVE Total Bottles nn”. The two digits, nn, will be flashing, indicating they can be changed. Press ENTER. The display now reads “nn bottles per Sample Cycle”. A previously set value will be displayed. One of the digits is flashing.
CVS4200 / BVS4300 Stationary Samplers 7.6.6.6 PROGRAM TYPE - Multi-Composite The following sequence of entries are made on the Touchpad to describe how the Sampler controller is to store the samples it takes, in the hardware specified in its configuration. The ACTIVE SETTINGS are not being altered. 1. Press the SET key. 2. Press the PROGRAM TYPE key. 3. Press an ARROW key. Continue until Multi-Composite is shown on the display (for storage in multiple container array). 4. Press the ENTER key.
CVS4200 / BVS4300 Stationary Samplers Press ENTER. The display now reads PROGRAM TYPE . The controller has now been given a new 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 Multi-Composite Sampler in conjunction with the parameters programmed under the START DELAY and SAMPLE INITIATION variables.
CVS4200 / BVS4300 Stationary Samplers 4. Press the ENTER key. Press ENTER. The display will show the response “TIMED STEP Total Bottles nn”. The two digits, nn, will be flashing, indicating they can be changed by scrolling with the arrow keys. Press ENTER. The bottom line of the display now reads “Step Intvl 00:00”. A previously set value is displayed. One of the digits is flashing, prompting for first digit of a numeric input. The format is HH:MM.
CVS4200 / BVS4300 Stationary Samplers 7.6.7 Programming OTHER OPTIONS 7.6.7.1 OTHER OPTIONS Overview SET or VIEW 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 the intake line prior to drawing in a sample to the chamber. The maximum allowable setting is 99 seconds. This feature allows the user to change how the Pinch Valve will operate during sampling cycles.
CVS4200 / BVS4300 Stationary Samplers VIEW ONLY The controller will remember conditions encountered during normal operation. Reasons for premature ending of a set program will also be saved in memory. By VIEWing this feature, this information can be obtained at the time the sampler is checked. Values retained by the controller to indicate number of missed samples.
CVS4200 / BVS4300 Stationary Samplers 7.6.7.2 OTHER OPTIONS - Clock The following sequence of entries are made on the Touchpad to alter the Real Time Clock, running internally in the controller, which is the basis for all timed functions. The ACTIVE SETTINGS are not being altered and there are no NEW ENTRIES generated. 1. Press the SET key. 2. Press the OTHER OPTIONS key. 3. Press an ARROW key. Continue until Clock is shown on the display (for updating the internal Real Time Clock). 4.
CVS4200 / BVS4300 Stationary Samplers Press ENTER. The bottom line of the 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. Press ENTER. The MM characters are set using the ARROW keys for the choice of one regular calendar month. Press ENTER. The YY pair of digits are set using the number keys again, corresponding to the last two digits in the year. Set each digit individually. Press ENTER.
CVS4200 / BVS4300 Stationary Samplers 2. Press the OTHER OPTIONS key. 3. Press an ARROW key. Continue until 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). 4. Press the ENTER key. The display shows the response “PURGE TIME seconds”. The first digit is flashing. A previously set value may be displayed.
CVS4200 / BVS4300 Stationary Samplers 7.6.7.4 OTHER OPTIONS - Pinch Valve The following sequence of entries are 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. 1. Press the SET key. 2. Press the OTHER OPTIONS key. 3. Press an ARROW key. Continue until Pinch Valve is shown on the display. 4. Press the ENTER key.
CVS4200 / BVS4300 Stationary Samplers The controller has now been given a new value for PINCH VALVE. 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 in conjunction with the parameters programmed under the START DELAY, SAMPLE INITIATION and PROGRAM TYPE settings.
CVS4200 / BVS4300 Stationary Samplers The display will show the response “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 controller will make a lengthy attempt to obtain a sample, then return control to the SAMPLE INITIATION to try again. The controller will accumulate a count of unsuccessful (abandoned) attempts. Press ENTER.
CVS4200 / BVS4300 Stationary Samplers Press the ENTER key. If more information is 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. START DELAY Press the VIEW key. Press the START DELAY key. Sequence: VIEW, START DELAY, ENTER, (ENTER).
CVS4200 / BVS4300 Stationary Samplers Cycles Abandoned - Counter 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 Maintenance, ARROW to selection, then display with ENTER.) ACTIVE SETTINGS Press the VIEW key. Press the ACTIVE SETTINGS key.
CVS4200 / BVS4300 Stationary Samplers 7.6.8.2 Viewing Generated Information 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 Press the VIEW key. Press the SAMPLES TAKEN key. The display will show a count of all samples taken during the current program. To make these changes active, press the RESTART key; press it again to confirm your choice.
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” switch in the “RUN” position. After an initial delay of 15 to 20 seconds, 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.
CVS4200 / BVS4300 Stationary Samplers SAMPLER WILL NOT TAKE TIMED SAMPLE: 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 LINE: Check for blockage of intake hose by removing hose from the metering chamber volume control tube.
CVS4200 / BVS4300 Stationary Samplers cleaner which may be harmful to the metering chamber cover. Do not use solvents such as acetone, benzene, carbon tetrachloride or lacquer thinners. Grease and oil may be removed with kerosene or aliphatic naphtha (nonaromatic). 9.2 4. Check and clean O-rings in metering chamber cover. Replace if damaged, worn or brittle. 5. Clean metering chamber using mild detergent.
CVS4200 / BVS4300 Stationary Samplers 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: 9.4 9.5 1. Check intake hose for leaks/kinks. 2. Check discharge tube, ensure it has no leaks and is in good shape. 3. Check all fittings to ensure they are tight. 4.
Appendix A. Principles of Operation Switching Methods (Sinking / NPN) LOAD Sensor Sinking (NPN) Switch 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.
Appendix A.
Appendix B. Parts List This is a partial list of most frequently requested CVS/BVS Sampler replacement parts. TABLE B-1. CVS/BVS Replacement Parts Part No. Old Part No. (Prior to 8-1-11) Description 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.
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 (Acrylic): All Systems, 1000 cc 26905 24-01-08 Metering Chamber (Pyrex): 3/8 System, 0.
Appendix B. Parts List OTHER COMPONENTS 28005 30-DC-MFCB Multi-Function Input Controller (12 Vdc) 28012 50-02-13 Pinch Valve 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 28337 Battery: 12 Vdc, 17 Ah, Sealed Rechargeable 55-15-23 Power Supply: 13.6 Vdc, 10.
Appendix B.
Campbell Scientific Companies Campbell Scientific, Inc. (CSI) 815 West 1800 North Logan, Utah 84321 UNITED STATES www.campbellsci.com • info@campbellsci.com Campbell Scientific Africa Pty. Ltd. (CSAf) PO Box 2450 Somerset West 7129 SOUTH AFRICA www.csafrica.co.za • cleroux@csafrica.co.za Campbell Scientific Australia Pty. Ltd. (CSA) PO Box 8108 Garbutt Post Shop QLD 4814 AUSTRALIA www.campbellsci.com.au • info@campbellsci.com.au Campbell Scientific do Brasil Ltda. (CSB) Rua Apinagés, nbr.
