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By Miltronics Mfg. Svcs., Inc.     

                                          Phone:   (603) 352-0187 

95 Krif Road                                                                            EFax:        (603) 352-7649 

Keene, NH 03431   USA                                                [email protected] 

 

 

DA400 User Manual, PN 10075                                                     Miltronics Mfg. Svcs., Inc. 

Rev 3.5, 01-Aug-2019 

                                                 www.pacer-instruments-usa.com 

Page 12 of 28

 

Press the FPM/MPS key to switch the measurement units from FPM 

(feet per minute, 1 FPM resolution) to MPS (meters per second, 0.01 

MPS resolution). 

 

   

Press the SAMPLE RATE key to change the measurement averaging 

rate (“sample rate”) of the unit: 

 
   

2ΣΕΧ

 

          An average value of airspeed measurements during the 

preceding 2 seconds is displayed.  

        
   

4ΣΕΧ

 

          An average value of airspeed measurements during the 

preceding 4 seconds is displayed. 

                
   

8ΣΕΧ

 

        An average value of airspeed measurements during the 

preceding 8 seconds is displayed.  

         
   

16 Σ

           An average value of airspeed measurements during the 

preceding 16 seconds is displayed.              

 

 

Press the MAX/MIN key to record and display the maximum airspeed 

reading.  The maximum airspeed reading display will alternate with the 

letter “H” displayed with the sample rate.   Press the MAX/MIN key  

again to record and hold the minimum airspeed reading.  The minimum airspeed  

reading display will alternate with the letter “L” displayed with the sample rate. 

For example: 

 

1065

    alternating with     

Η  8

   

signifies that 1065 is the highest airspeed 

reading since the MAX/MIN key was pressed, and the sample rate is set to 8 

seconds. 

 

  

82

 

   alternating with     

Λ 16

   

signifies that 82 is the lowest airspeed 

reading since the

 

MAX/MIN key was pressed, and the sample rate is set to 16 

seconds.

 

 

To exit MAX/MIN mode, press the SAMPLE RATE key. 

 

Summary of Contents for DA400

Page 1: ...352 0187 95 Krif Road EFax 603 352 7649 Keene NH 03431 USA sales pacer instruments usa com DA400 User Manual PN 10075 Miltronics Mfg Svcs Inc Rev 3 5 01 Aug 2019 www pacer instruments usa com Page 1 of 28 Model DA400 ANEMOMETER User Manual ...

Page 2: ...process airflow and fluids research The rugged yet precise probes can be used for airstreams that have a wide range of humidity temperature and contaminants without compromising accuracy Features include choice of probe diameters custom cable lengths service temperatures up to 212 F 100 C at the probe high reliability and long life At the time of receipt if more than 4 months has elapsed since the...

Page 3: ...vcs Inc Attn Pacer Instruments 95 Krif Road Keene New Hampshire 03431 USA Please include a note with name address telephone number and description of the problem Although we provide assistance on Pacer Instrument products both personally and through our literature it is still the total responsibility of the customer to determine the suitability of the product for use in their application This manu...

Page 4: ...e risks of damage to the product that may void the product warranty and or calibration Internal components are static sensitive and are not user serviceable Opening the cases by a non authorized service center and or in a non ESD safe environment may cause damage not covered by the manufacturer s warranty Important Mandatory Action Required The specific action is given near this symbol FCC Complia...

Page 5: ...oHS Directive still apply under Article 4 2 Annex II 0 1 by weight in homogenous materials for lead mercury hexavalent chromium polybrominated biphenyls and polybrominated diphenyl ethers 0 01 by weight in homogenous materials for cadmium Please be advised that we do not analyze for these substances WEEE Waste Electrical and Electronic Equipment 2002 96 EC Miltronics Mfg Svcs Inc asks that all our...

Page 6: ...batteries or put them into a fire The may cause burns and the batteries may burst Please dispose of used batteries in the proper manner per local ordinances CAUTION When measuring ensure that the direction arrow is facing the direction of airflow The arrow indicates the direction of airflow for the data provided on the calibration certificate It is meant to allow for uniform and consistent reading...

Page 7: ... to insert them with the polarity facing the correct direction Failure to do so may cause battery leakage and subsequent damage to the instrument The manufacturer does not recommend any specific brand of batteries but a high quality name brand alkaline battery seems to last the longest Do not wipe the instrument with a volatile solvent Use neutral solvents and simple cleaners to clean the instrume...

Page 8: ... 7800 ft min feet per minute 0 2 to 40 00 m sec meters per second Air Probe AP100 300 to 6890 ft min 1 5 to 35 00 m sec Accuracy AP275 1 0 of reading 1 digit AP100 0 5 full scale 0 75 of reading 1 digit Resolution 1 ft min or 0 01 m sec Operating Temperature Instrument 32 to 125 F 0 to 50 C Probes 4 to 212 F 20 to 100 C Power Supply 3 AA alkaline batteries Battery Life Approx 150 hours without bac...

Page 9: ...Seal for the Instrument USB Communications RS232 Communications Analog 0 5 Volt Output Additional Probes AP275 or AP100 Extra extension and or flexible rods Custom cable lengths Included 1 DA410 Instrument 1 Vane type probe head choice of AP100 or AP275 3 Rigid extension rods with handle grip 1 Flexible extension rod 1 Probe connection cable 5 ft 3 Size AA 1 5V alkaline batteries installed in inst...

Page 10: ... 603 352 0187 95 Krif Road EFax 603 352 7649 Keene NH 03431 USA sales pacer instruments usa com DA400 User Manual PN 10075 Miltronics Mfg Svcs Inc Rev 3 5 01 Aug 2019 www pacer instruments usa com Page 10 of 28 AP275 PROBE AP100 PROBE ...

Page 11: ...it OFF The unit will automatically power off after 30 minutes without any key presses To disable auto power off hold down the power button during turn on The unit will flash AOFF which means that the auto power off has been disabled The auto power off is re enabled each time the instrument is turned on Press the BACKLIGHT key to turn the LCD backlight on for 30 seconds To turn the backlight on per...

Page 12: ...alue of airspeed measurements during the preceding 8 seconds is displayed 16 Σ An average value of airspeed measurements during the preceding 16 seconds is displayed Press the MAX MIN key to record and display the maximum airspeed reading The maximum airspeed reading display will alternate with the letter H displayed with the sample rate Press the MAX MIN key again to record and hold the minimum a...

Page 13: ...ing on the display HOLD is displayed on the LCD and the reading is held Press the HOLD RESET key a second time to clear this mode and return the unit to normal operation Press the HOLD RESET key while in MIN MAX mode to display BOTH the minimum and maximum airspeed reading since the MAX MIN key was pressed Once the HOLD RESET key is pressed while in MAX MIN mode new airspeed readings are no longer...

Page 14: ...3 352 0187 95 Krif Road EFax 603 352 7649 Keene NH 03431 USA sales pacer instruments usa com DA400 User Manual PN 10075 Miltronics Mfg Svcs Inc Rev 3 5 01 Aug 2019 www pacer instruments usa com Page 14 of 28 APPENDIX B BATTERY REPLACEMENT ...

Page 15: ...onal area equals the Width times the Height W x H A cross sectional area In a circular duct this cross section area equals the radius squared times π 3 14 R x R x 3 14 A cross sectional area To convert an area calculated in square inches to an area calculated in square feet which is required for the Volume Flow equation above divide by 144 area in sq in 144 area in sq ft Example The air duct is re...

Page 16: ... Analog Output Measurement Equation to convert from Color Pin Function Voltage Range Range Volts V to Measurement Value BLK 1 Ground N A N A N A GRN 2 Air Velocity 0 to 5 Volts 0 to 10 000 FPM Air Velocity 2000 V GRY 3 Not Used N A N A N A WHT 4 Not Used N A N A N A To convert from Volts to Air Velocity in Feet per Minute multiply by 2000 For example an analog output of 2 375 Volts means that the ...

Page 17: ...eene NH 03431 USA sales pacer instruments usa com DA400 User Manual PN 10075 Miltronics Mfg Svcs Inc Rev 3 5 01 Aug 2019 www pacer instruments usa com Page 17 of 28 Mating Cable Connector Binder Part No 99 0413 00 05 Analog Output circuit block diagram and connector pin assignment ...

Page 18: ... end USB Data Output Instructions for Use STEP 1 Install a Virtual COM Port VCP Driver on your computer Free VCP drivers can be downloaded for Windows Linux and MAC from FTDI Ltd on their website http www ftdichip com Drivers VCP htm We recommend downloading the setup executable which automatically runs and configures the drivers for you STEP 2 Connect the USB cable included to the male connector ...

Page 19: ...tronics Mfg Svcs Inc Rev 3 5 01 Aug 2019 www pacer instruments usa com Page 19 of 28 You are now ready to capture the data being measured by your instrument Please refer to Appendix G Viewing and Capturing Data for further instructions NOTE Units with USB or RS232 communications output only Air data at this time Temperature data is not available on the output ...

Page 20: ...ave a three pin female connector on one end and a DB9 Female connector on the other end RS232 Data Output Instructions for Use STEP 1 Connect the RS232 cable included to the female connector on the bottom of your instrument Connect the other end to an RS232 port on your computer STEP 3 Turn the Instrument ON STEP 4 Verify that the Instrument has been set up as a RS232 Serial Port with a unique COM...

Page 21: ...gram is compatible with his her system what settings it may require and the Pacer Instruments Miltronics product being used Miltronics Mfg Svcs Inc does not endorse or recommend any of these programs and assumes no liability for their use There are many ways to capture the serial port data from the Pacer Instrument The simplest method is to use a terminal emulator program Using a terminal emulator...

Page 22: ...s Mfg Svcs Inc Rev 3 5 01 Aug 2019 www pacer instruments usa com Page 22 of 28 Select the appropriate Com Port In the below example COM5 is being used Set the Baud Rate to 9600 You will now receive data from your instrument The graphic below shows the serial port output data from Parallax Serial Terminal when connected to a Pacer DA400 Instrument Graphics may vary ...

Page 23: ...ormat Comma Separated Values CSV Measurement Units Same as Units shown on LCD Display Below are examples of the formatted output data for Pacer s Premier Series Instruments units may be different depending on the units selected on the LCD display Model DA400 Air 47 FPM Model DA410 displaying in Air Velocity Mode Air 47 FPM Model DA410 displaying in Volume Flow Mode Air 251 CFM Model DA420 Air 47 F...

Page 24: ...Excel or OpenOffice Calc allows the data to graphed or recorded The simplest way to export the instrument data is to use a terminal emulator program like Parallax Serial Terminal and either capture the serial data text to a file menu selection or to manually highlight copy and then paste the instrument data into an editor such as Windows Notepad Once you have the instrument data in a file save the...

Page 25: ...Inc Phone 603 352 0187 95 Krif Road EFax 603 352 7649 Keene NH 03431 USA sales pacer instruments usa com DA400 User Manual PN 10075 Miltronics Mfg Svcs Inc Rev 3 5 01 Aug 2019 www pacer instruments usa com Page 25 of 28 Notes ...

Page 26: ...Inc Phone 603 352 0187 95 Krif Road EFax 603 352 7649 Keene NH 03431 USA sales pacer instruments usa com DA400 User Manual PN 10075 Miltronics Mfg Svcs Inc Rev 3 5 01 Aug 2019 www pacer instruments usa com Page 26 of 28 Notes ...

Page 27: ...instrument performs within its accuracy tolerance making any necessary adjustments and inspecting all aspects of the instrument s functionality so that you ll have another year of dependable service Calibration also includes a complimentary firmware upgrade so that you know you ll have the latest advances in accuracy and reliability in your instrument Additional points other than our standard cali...

Page 28: ...ug 2019 www pacer instruments usa com Page 28 of 28 Miltronics Mfg Svcs Inc 95 Krif Road Keene New Hampshire 03431 USA 800 283 1141 603 352 0187 EFax 603 352 7649 sales pacer instruments usa com www pacer instruments usa com Copyright 2019 Miltronics Mfg Svcs Inc Miltronics Pacer Instruments DA400 the Miltronics Mfg Inc logo and the Pacer Instruments logo are trademarks of Miltronics Mfg Inc ...

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