FlowKinetics FKS 1DP-PBM User Manual Download

Page: 1 / 41

FKS 1DP-PBM Multi-Function Meter

Pressure, Speed & Flow

User’s Manual

Contact Information

Email:
[email protected]

Web:
www.flowkinetics.com

Mail:
FlowKinetics LLC
4700 Shoal Creek Dr.
College Station, TX 77845
USA

Telephone:
(979) 680-0659

(888) 670-1927

Fax:
(979) 680-0659

IMPORTANT

Read  all  instructions  and
precautions  in  this  manual
before  use.  Keep  this  manual
for future reference.

April 19 - 2018

Summary of Contents for FKS 1DP-PBM

Page 1: ...form flowkinetics com Web www flowkinetics com Mail FlowKinetics LLC 4700 Shoal Creek Dr College Station TX 77845 USA Telephone 979 680 0659 888 670 1927 Fax 979 680 0659 IMPORTANT Read all instructions and precautions in this manual before use Keep this manual for future reference April 19 2018 ...

Page 2: ... Batteries Use Wall Power 9 Q How Do I Connect the Tubing 9 Q How Do I Switch the Unit On and Off 9 Q How Do I Adjust the Screen Contrast 10 Q How Do I Know if the Batteries Need Replacement 10 Q How Do I Change the Auto Zero Interval 10 Q How Do I Know If the Meter is Overloaded 11 Q How Do I Change the Smoothing of My Data 11 Measuring Pressure 13 Q How Do I Change Units 13 Q How Do I Measure th...

Page 3: ... Maximum H Reading 16 Q How Do I Reset Min Max 16 Q How Do I Hold or Freeze the Display 16 Q How Can I Estimate if the Air Speed May Be Too Unsteady for Accurate Measurement 16 Q What Probes can I use with the FKS 1DP PBM 16 Q How Do I Connect the Pitot Probe 16 Q How Do I Change K 17 Q How Do I Measure Standard Speed 17 Q How Do I Measure Actual Speed 18 Q How Do I Check the Stored Values for K P...

Page 4: ...ng and Memory Management 26 Q How Do I Manually Log a Reading Store in Memory 26 Q How Do I Configure the Meter for Automatic Continuous Logging 26 Q How Do I Start Automatic Logging 27 Q How Do I Recall My Measurements From Memory 28 Q How Do I Download Memory to a PC 29 Q How Do I Clear the Memory 30 Maintenance 31 Operational Maintenance 31 Battery Maintenance 31 Specifications 32 Appendix A Un...

Page 5: ...chase price at the Seller s option provided the product has been returned transportation prepaid within one year from date of purchase In no case is the Seller liable beyond replacement of product F O B factory or the full purchase price This warranty does not apply if the product or equipment is abused altered used at ratings above the maximum specified used with disregard of instructions and spe...

Page 6: ...r The instrument is supplied with some accessories are optional Item Description Quantity FKS 1DP PBM Multi function meter 1 Tubing Flexible tubing for pressure connection 2 FKS Manual User reference 1 Cable6 6 ft Serial cable 1 SwiftLink Software for downloading memory to PC Download from www flowkinetics com WPA Wall power adapter Optional SwiftScan CD and manual Real time software for monitorin...

Page 7: ...ro automatic function to remove any drift internal valve Overload protection Metric and Imperial units Minimum maximum reading Data hold screen freeze Turbulence indicator K factor Speed both standard and actual Density correction Intelligent automatic damping with user selectable averaging or smoothing Memory data logging up to 10 000 Rdgs with recall statistics Manual and automatic data logging ...

Page 8: ...1 L 0 21 V 6702ft min H8291 L6231 Measured pressure Maximum recorded value H Calculated speed Maximum recorded value H Turbulence indicator appears if Pressure fluctuations 10 Minimum recorded value L Minimum recorded value L Positive pressure connection barb On Off button Range control or selector External power jack plug Negative or Reference pressure connection barb Hold Manual log button Scree...

Page 9: ...ied optional with the instrument will remove any rights of claim against FlowKineticsTM LLC relating to product liability or consequential damage against a third party and will void the warranty If an alternative adaptor is used its output voltage range must be regulated and within DC ADAPTOR DC V V V 12 9 If the meter is stored or not used for over a week the batteries must be removed Q How Do I ...

Page 10: ...operly the message Battery Depleted will be displayed at startup and the meter will not continue until the batteries are replaced or a wall power supply is used Q How Do I Change the Auto Zero Interval The PBM meter contains a miniature solenoid valve that is used to automatically remove any offset or drift from the differential pressure transducer without having to disconnect the meter from the p...

Page 11: ...ing of My Data The FKS 1DP PBM meter contains sophisticated routines to process your measurements very useful when they are unsteady or fluctuating Two methods can be used to smooth your readings An exponential moving average sometimes called exponential smoothing can be used somewhat similar to a normal moving average and of the form 2 1 1 2 P f f P P Exp Smoothing where P2 is the new pressure es...

Page 12: ...e control to select it The menu will cycle Exp Smoothing followed by Averaging Rotate the Range selector any direction or unit when the desired method is displayed The instrument will then return to measurement mode The method you selected is stored in memory and will be retained after switching the unit off For very unstable readings the exponential smoothing may offer a more stable estimate wher...

Page 13: ...e appearance of a H at the top RHS of the display To resume operation press the Hold Log button again Q How Can I Estimate if the Pressure May Be Too Unsteady for Accurate Measurement If the measured pressures fluctuate more than 10 an indicator T will appear at the top RHS of the display This may suggest that another measurement location may be necessary Q How Do I Estimate the Uncertainty in My ...

Page 14: ...ave up to 255 individual IDs starting from 1 When recalling memory an average H and L of the readings in an ID will be calculated and shown on the screen While recording measurements in a specific ID you should not change the instrument s units To increment the ID they increment sequentially press the Hold Log button for greater than 4seconds The display will then change from Point Logged followed...

Page 15: ...pressure as well as the H and L value in the group An example of storage and recall is shown in Table 1 with pressure and speed storage in separate group IDs and the sketch below Continue to rotate the Range selector to index through the group IDs After completing the recall of the manual log data the unit will recall the automatic log data if any See Data Logging and Memory Management for details...

Page 16: ... Do I Hold or Freeze the Display Press the Hold Log button for less than 2seconds The display will freeze indicated by the appearance of an H at the top RHS of the display To resume operation press the Hold Log button again Q How Can I Estimate if the Air Speed May Be Too Unsteady for Accurate Measurement If the measured pressures fluctuate more than 10 an indicator T will appear at the top RHS of...

Page 17: ...ny direction or unit The second digit will begin to blink Use the Hold Log button to set the desired value similarly for the third digit The instrument will then return to measurement mode Any calculated speeds will then use the K factor you set The K factor is stored in memory and will be retained after switching the unit off The measured speed multiplies K see Appendix B See the Pitot probes ins...

Page 18: ...t to default i e standard conditions Note that K is also reset to 1 default Q How Do I Measure Actual Speed The atmospheric pressure Patm this is the absolute pressure in the flow to be measured and temperature T of your airflow measurements should be set manually To measure actual speed the temperature and absolute barometric pressure of the air to be measured must be known Set the Range selector...

Page 19: ...lt Standard Conditions Set the Range selector to Menu The menu will cycle through various functions When Reset K Patm T appears rotate any direction the Range control to select it The menu will indicate that K Patm and T have been reset to default i e standard conditions Note that K is also reset to 1 default Q How Do I Estimate the Uncertainty in My Speed Measurements The FKS meter contains power...

Page 20: ...nt the ID they increment sequentially press the Hold Log button for greater than 4seconds The display will then change from Point Logged followed by ID x to New ID Data Log followed by ID y where y is the new ID equal to the last ID 1 To clarify the use of IDs say you have taken pressure measurements in a duct section These measurements have been stored to ID 1 You move to another location where y...

Page 21: ...4 psi 0 051 psi 3 1090 ft min 1110 ft min 1081 ft min 1100 ft min 1121 ft min 1060 ft min 1094 ft min 1121 ft min 1060 ft min MR Values with units stored in Memory MR MR Shown during memory recall shown shaded Continue to rotate the Range selector to index through the group IDs After completing the recall of the manual log data the unit will recall the automatic logged data if any See Data Logging...

Page 22: ...r a rectangular duct the unit will then prompt for you to enter the width and then the height in your chosen units or for a round duct the diameter For all cases the dimensions are set as follows The first digit will begin to blink To increment this digit press the Hold Log button You can also keep the button pressed to advance rapidly If the displayed digit increments beyond 9 it will wrap around...

Page 23: ...e group ID number is not displayed if uncertainty mode has been selected See How Do I Use Manual Logging to Perform a Survey for calculating the flow rate from the stored speeds Rotating the Range control will have the meter prompt if you are performing another survey for a similar sized duct If you are you can select Yes by rotating the Range control This saves you having to re enter the duct dim...

Page 24: ...s sectional duct area in the same units You can also change the speed from actual to standard conditions or vice versa by changing Patm and T before recalling your data The memory data can be recalled repeatedly as needed An example is shown in Table 3 A circular duct was surveyed with two rows and 6 points per row The group ID was advanced for the first reading to ID 2 The twelve readings are sto...

Page 25: ... set actual speed Set K factor o Used to set the calibration constant K for non unity probes e g S type probes Pitot Survey o Used to perform a prompt driven survey of a duct to calculate flow rate Set Auto Zero o Used to set the interval between instrument Auto Zero solenoid actuation View K Patm T o Used to view the currently stored values for these parameters Reset K Patm T o Used to reset to d...

Page 26: ...the last ID 1 To clarify the use of IDs say you have taken pressure measurements in a duct section These measurements have been stored to ID 1 You move to another location where you want to measure air speed These speed readings are not associated with the previous pressure readings So to store them you increment to the next group ID say 2 Readings will be logged to a group ID until you change the...

Page 27: ...set After setting the total log duration the display will show Rotate to Contin and Interval mins The interval between readings is set in minutes The display will show initially 00 00 The maximum interval is 99 99 minutes 12 3 hours and the minimum interval is 00 01 0 6 seconds If the time interval is set to zero a default of 0 6 seconds will be used Individual digits are set as mentioned above fo...

Page 28: ... interval is less than 1 minute the meter will not Auto Zero between readings Q How Do I Recall My Measurements From Memory The FKS 1DP PBM meter recalls the data stored in a group ID it calculates the average of the group as well as the minimum L value and maximum H value in the group Individual values are not displayed The meter will sequentially process all stored IDs starting from 1 showing th...

Page 29: ...l display Automatic Data The recall is the same as for manual data After completing recall the instrument will return to measurement mode Any apparent memory recall malfunctions may be remedied by clearing the memory Q How Do I Download Memory to a PC To download the stored data to your PC use SwiftLink SwiftLink installation 1 SwiftLink can be downloaded from the support page or the FKS 1DP PBM p...

Page 30: ...mum minimum and average value for the current ID It also includes the units used for each reading For automatic data it additionally includes the time in minutes from the first stored value for each ID Q How Do I Clear the Memory To clear the memory Set the Range selector to Menu The menu will cycle through various functions When Logging Options appears rotate any direction the Range control to se...

Page 31: ...arning appears on the display B the batteries should be replaced The FKS series should be returned to FlowKineticsTM LLC for calibration annually Battery Maintenance The batteries of the FKS series are changed as follows Check to ensure that the instrument is turned off Remove the battery compartment cover plate this located on the back of the instrument The plate slides off Carefully remove the o...

Page 32: ...or Zero offset and zero temperature shift eliminated through auto zero without disconnect Accuracy at 25 C Typically within 0 1 of full scale pressure 0 22 max Maximum simultaneous pressure on both ports above ambient 10 psi for sensors with a range of 5 inH2O or below 15 psi for sensors with a range of 12 inH2O or above Speed Flow For available speed ranges Table 7 Corrected by user defined flow ...

Page 33: ... logging 255 group IDs 6 000 reading capacity Display 2 line variable contrast alphanumeric LCD Pressure units Pa kPa inH2O mmHg inHg psi mbar and lb ft2 Speed units m sec ft sec and ft min Flow units m3 sec ft3 sec ft3 min Compatible Mediums Clean dry non corrosive non flammable gases Output RS232 serial port interface 9 pin connector USB adapter USBA or USBA2 available as an accessory Warranty O...

Page 34: ...1 0 1 m sec 0 01 0 01 0 01 0 01 0 1 0 1 ft sec 0 01 0 01 0 1 0 1 0 1 0 1 ft min 1 1 1 1 1 1 m3 sec 0 0001 0 0001 0 0001 0 0001 0 0001 0 0001 ft3 sec 0 0001 0 0001 0 0001 0 0001 0 0001 0 0001 ft3 min 0 001 0 001 0 001 0 001 0 001 0 001 Table 7 Maximum and Minimum Transducer Speed Ranges assuming standard conditions Patm 29 92inHg and T 70ºF Using Pitot static Probe Pressure Transducer Range Speed R...

Page 35: ...ed by the FKS 1DP PBM the estimated interval xi can be calculated using Sx x xi 2 95 5 probability Sx x xi 3 99 7 probability Thus to a 95 5 confidence interval it may be expected that the measurement will lie within the interval given by Sx x xi 2 similarly for the other probabilities The variance of the distribution of the mean values for a single finite data set can be estimated by calculating ...

Page 36: ...probability that has been selected The true mean value of the measured pressure Ptrue_mean_value x is 1 67 0 008 Ptrue_mean_value 1 67 0 008 to a 99 7 probability or 1 662 Ptrue_mean_value 1 678 Thus there is a 99 7 chance that the true value of the mean pressure is within the range 1 662 Ptrue_mean_value 1 678 The FKS 1DP PBM will perform these calculations for pressure or speed measurement The i...

Page 37: ...re at the nose of the Pitot probe and the static pressure of the air stream at side ports The difference of these pressures i e the differential also called dynamic or speed pressure Pdifferential varies with the square of the air speed Thus the air speed may be expressed as al differenti air P K V 2 where is the air density and K is a correction factor the K factor dependent on the design of the ...

Page 38: ... select a suitable location to perform the survey If possible avoid traverses close to fans dampers pipe bends expansions etc Try to survey at least 8 duct diameters downstream of the aforementioned elements and 2 duct diameters upstream of these elements The survey is performed with the aid of Fig B1 Either the Centroids of Equal Areas or Log Tchebycheff point distribution may be used A survey pr...

Page 39: ...l area n is the number of points total number of points surveyed Vi is the indicated speed at each measurement point Using a Centroids of Equal Areas or Log Tchebycheff point distribution allows the speed measurements to simply be summed and averaged NOTE Assuming fully developed turbulent flow with low air swirl rotation i e after a long section of duct the average duct speed may be estimated usi...

Page 40: ...All Rights Reserved 40 Fig B1 Traverse points for rectangular and circular ducts Either Centroids of Equal Areas OR Log Tchebycheff point distributions can be used 1 x y H W 2 3 2 3 4 1 2 3 4 4 Point Example 6 Point Example D x y 5 2 3 1 2 3 4 6 1 2 3 4 5 6 ...

Page 41: ...0 853 0 957 8 0 032 0 105 0 194 0 323 0 677 0 806 0 895 0 968 10 0 026 0 082 0 146 0 226 0 342 0 658 0 774 0 854 0 918 0 974 12 0 021 0 067 0 118 0 177 0 250 0 356 0 644 0 750 0 823 0 882 0 933 0 979 Rectangular Ducts Log Tchebycheff Points Distance from wall x W or y H 5 0 074 0 288 0 500 0 712 0 926 6 0 061 0 235 0 437 0 563 0 765 0 939 7 0 053 0 203 0 366 0 500 0 634 0 797 0 947 Circular ducts ...

Search results

Summary of Contents for FKS 1DP-PBM

Reviews:

Related manuals for FKS 1DP-PBM

Brands by name

Popular brands

FlowKinetics FKS 1DP-PBM, User Manual

Search results

Summary of Contents for FKS 1DP-PBM

Reviews:

Related manuals for FKS 1DP-PBM

Brands by name

Popular brands