Table of Contents
Subscribe to Our Youtube Channel
Related Manuals for PKP DB04A
Summary of Contents for PKP DB04A
- Page 1 Instruction Manual DB04A Thermal Mass Flowmeter for Gases without auxiliary Power PKP Prozessmesstechnik GmbH Borsigstraße 24 D-65205 Wiesbaden-Nordenstadt Tel.: ++49-(0)6122-7055-0 Fax: ++49-(0)6122-7055-50 Email: info@pkp.de...
- Page 2 Operating instructions DB04A Version : DB04A EN A1-9 For the latest information on our products, see our website at www.pkp.de PKP Prozessmesstechnik GmbH, Borsigstraße 24, D-65205 Wiesbaden-Nordenstadt Manual Version Page DB04A EN A1-9 PKP Prozessmesstechnik...
- Page 3 In the case of toxic and flammable gases, the respective safety guidelines in each country must be followed. This DB04A device is NOT Ex certified. In the case of flammable and toxic gases, fittings, cable glands and pipes intended for that purpose must be used. The responsibility for safe operation lies with the user and designer of the facilities.
- Page 4 Oxygen service PKP is not liable for any damage or personal injury, whatsoever, resulting from the use of our standard mass flow meters or controllers for oxygen gas. You are responsible for determining if this mass flow meter or controller is appropriate for your oxygen application. You are responsible for cleaning the mass flow meter or controller to the degree required for your oxygen flow application.
-
Page 5: Table Of Contents
Table of contents Introduction 1.10. Features of DB04A thermal mass flow meters 1.11. Scope of warranty 1.12. Instructions and warnings 1.13. Documentation and cables supplied 1.14. The measurement principle 1.15. Real, Standardized and Normalized flow 1.16. CMOS technology 1.17. Block diagram General device specifications 2.10. - Page 6 6.12. Dimensional drawings ¼” in mm 6.13. Dimensional drawings ¼” in inches 6.14. Dimensional drawings ½” in mm 6.15. Dimensional drawings ½” in inches 6.16. Wetted parts DB04A series 6.17. Contamination statement 6.18. Overview Default settings Manual Version Page DB04A...
-
Page 7: Introduction
Please contact PKP if you have questions about any aspect of the products. The DB04A is a thermal based mass flow meter that can measure the mass flow of gases. The core element of the DB04A thermal mass flow meter is a CMOS sensor chip. The sensor and parts of the electronics are on one board and offer a number of advantages for the user. -
Page 8: Instructions And Warnings
Stated simply, the thermal measurement principle measures the heat transport by gas flowing past. In the case of DB04A mass flow measuring instruments, a constant heat input gives a flow- dependent temperature difference (∆T). Two temperature sensors are positioned in the measuring channel (T1, T2), one before the heating system (H) and one after it. -
Page 9: Real, Standardized And Normalized Flow
It cannot be changed after the units has been delivered. On the sticker of the DB04A we will mention a reference condition. This reference condition is for the “Standard” units only. The “normal” units will always be 0°C and 1013.25 mbara. -
Page 10: Cmos Technology
Units shown as volume (l/min) refer to the customer defined reference conditions (Same as “standard”) Real Mass flow: (f.i. Kg/hr). This refers to true mass units per time unit. The DB04A can •... -
Page 11: Block Diagram
The following GCM block diagram shows the structure of the device. The block diagram does not show the optional manual control/needle valve (Model GCR) that would normally be placed on the outlet of the unit. Figure 4: Block diagram Manual Version Page DB04A EN A1-9 PKP Prozessmesstechnik... -
Page 12: General Device Specifications
*British Standard Pipe Parallel Inlet section: None required Mounting orientation: Any position (consult manufacturer above 5 bara (72 Psia) if the DB04A will be mounted vertical) Connection cable: For external power supply: 2 m with loose ends (fly leads) Manual Version... -
Page 13: Safety
(Power supply hereafter refered to as the 24 Vdc power supply) 2.12. Measurement ranges (air) The DB04A has 4 different flow elements. Each element has a defined maximum operating flow range that will be defined during calibration. The flow ranges selectable below are the maximum flow ranges for air/O2 and N2 only. -
Page 14: Usb Interface
(USB micro-B is the same connector you find on most Android and Windows portable phones, you can use the charger of your telephone to power the DB04A). It is not possible to read data from the flow meter through the USB connection. 2.14. Battery The battery operated DB04A can operate on any common AA battery. -
Page 15: Calibration
2.16. Calibration Each measuring device is supplied with a factory calibration report. The calibration is traceable to American and/or European standards. On request we can also provide DAkkS calibration (German Accreditation Body). Manual Version Page DB04A EN A1-9 PKP Prozessmesstechnik... -
Page 16: Operation With Other Gases
The response time is time required to display 98% of its final value after a sudden change in flow. This response time for the DB04A 2 is around 300 ms but is dependent on your filter settings. 2.22. Filter settings The filter settings smoothens the reading of pulsating or noisy flows. -
Page 17: Installation And Commissioning
Install an air reservoir with 2 liter volume in the feed pipe (2 liter is an example, the volume depends on the application). Manual Version Page DB04A EN A1-9 PKP Prozessmesstechnik... -
Page 18: Fittings And Filters
In pressurized-air applications using compressors, the air must be dry and free of oil. Please ensure that a suitable processing unit is located before the devices. In the case of gases from cylinders, in general no filter is needed. For more information, see chapter Maintenance. Manual Version Page DB04A EN A1-9 PKP Prozessmesstechnik... -
Page 19: Electrical Power Supply
3.15. Electrical power supply The DB04A can be provided with power from a standard AA battery or from a common USB micro- B charger that you typically use for the changing of your phone. There are optional modules by which you can apply a 12 to 30 Vdc external power. -
Page 20: How To Replace The Battery
Replacing the battery will not automatically turn on the unit. Inserting the battery incorrectly will not damage the unit. Please dispose of the battery on an environmental friendly way (Recycle) Manual Version Page DB04A EN A1-9 PKP Prozessmesstechnik... -
Page 21: Warm-Up Time
4. Operation 4.10. Introduction The DB04A has a touch screen based on pressure. You can operate the screen with your finger or an object that does not create any scratches on the display. The display has a backlight that only operates if the unit is powered by an external power source. - Page 22 The DB04A has the ability to show the actual flow in many different engineering units. This means that the number of digits in the readout can change a lot. In automatic resolution mode the DB04A calculates the required number of digits depending on the range and selected units. This resolution is however adjustable by the user (See chapter 4.12.4...
- Page 23 Return: Return to the previous menu. If you hold it for longer than 0.5 sec you return to the home screen Up/down: increase/decrease (you can also select a menu item by touching the relevant line) Select/confirm: Store selected value Manual Version Page DB04A EN A1-9 PKP Prozessmesstechnik...
-
Page 24: Main Menu
If the unit is externally powered it will give you the option to “Reboot” the unit. **Alarms will be visible but if the Alarm module is not installed this menu option cannot be used. Manual Version Page DB04A EN A1-9 PKP Prozessmesstechnik... - Page 25 If the alarm is enabled you see a star ( ) behind the word “Reset”. Function: With this submenu you can set the function of the alarm (Options: Flow high, low or window and totalizer). For more details see chapter 4.11.2 Manual Version Page DB04A EN A1-9 PKP Prozessmesstechnik...
- Page 26 4 the alarm will get active if flow is lower than 4 or higher than 5. Totalizer: The DB04A has 2 build in totalizer. One is permanent and non-resettable. The second one is a resettable totalizer. You can bring it back to zero.
- Page 27 The alarm duration is minimum time that the alarm is active after it is activated. It can be set from 100 to 9999999 msec (=2.777 hr) Reset source: The alarm can be reset in different ways. Below a list of the 4 possible settings: Manual Version Page DB04A EN A1-9 PKP Prozessmesstechnik...
- Page 28 The totalizer calculates how much gas has totally passed through the flow meter based on the measured flow and the factor time. The instrument has 2 totalizers. Each can display a maximum Manual Version Page DB04A EN A1-9 PKP Prozessmesstechnik...
- Page 29 N: is the non-resettable totalizer, R: is the current value of the resettable totalizer. Home screen view: Here you can select if you want to read the Non-resettable or Resettable totalizer on the main screen. Manual Version Page DB04A EN A1-9 PKP Prozessmesstechnik...
- Page 30 4.11.4. Gas selection The DB04A can store up to 3 different curves for different gases or gas mixtures in its memory. If you have ordered more than one gas when you purchased this unit, you can select the required gas here. The locations that do not have a gas programmed are marked with “N/A”.
-
Page 31: Settings
The sensor can be overridden with the 0 or 180 degrees settings. This is very convenient if you want the gas inlet to be on the right side of the flow meter. Manual Version Page DB04A EN A1-9 PKP Prozessmesstechnik... - Page 32 If there is a unit selected with too many digits, the device will show: “Out of range” on the display. If you select a totalizer unit that would create too many digits the totalizer will show 9999999. Manual Version Page DB04A EN A1-9 PKP Prozessmesstechnik...
- Page 33 Before you apply higher filter values, please try to identify the cause of the flow pulsations. This could be a compressor, pressure amplifiers, incorrectly sized fittings, non-return valves or pressure regulators. Sometimes creating more “dead volume” before of behind your flow meter could solve the problem. Manual Version Page DB04A EN A1-9 PKP Prozessmesstechnik...
- Page 34 In this menu you can adjust the resolution of your flow and totalizer values shown on the display. The DB04A has the ability to show the actual flow and the totalizer in many different engineering units. This means that the number of digits in the readout can change a lot.
-
Page 35: Maintenance
The reset takes about 30 seconds. 5. Maintenance When operated properly and with the use of clean and dry gas, DB04A devices do not require any routine maintenance. There are no internal moving parts in the measurement part of the device. -
Page 36: Returns
PKP at the next opportunity. 5.11. Returns When returning a DB04A please insure suitable packaging. Please contact us before you return the unit to us. To repair the unit we require a detailed and accurate description of the problem, the required service and the possible causes of the faults. -
Page 37: Appendix
In the following table we have compiled fault symptoms, their possible causes and suitable measures you can take. If you do not recognize your fault symptom, or the proposed measures were not successful, please consult PKP. If you are planning to return a product, please refer to the chapter 5.11... - Page 38 Wrong unit selection Select a unit that fits better to the current flow. Forgot Password Contact the factory or distributor Please consult PKP Totalizer shows 9999999 Overflow totalizer units Select a different unit (try m3n or kg) If you need any support please contact us by e-mail through Customer Service: info@pkp.de...
-
Page 39: Pressure Loss
6.11. Pressure loss The following figures show examples of the pressure drop of a DB04A (measuring instrument only, not the valve) Please note that the curves below are as an indicator only and based on atmopheric outlet pressure. Especially when the outlet is under vacuum, the pressure drop can be higher. - Page 40 Manual Version Page DB04A EN A1-9 PKP Prozessmesstechnik...
-
Page 41: Dimensional Drawings ¼" In Mm
6.12. Dimensional drawings ¼” in mm Units with ¼” BSP process connections “P” referes to the optional fittings length. Fittings are options only. Standard process connection is female ¼” BSPP tread. If additional information is needed, please consult PKP. Manual Version Page... -
Page 42: Dimensional Drawings ¼" In Inches
6.13. Dimensional drawings ¼” in inches Units with ¼” BSP process connections “P” referes to the optional fittings length. Fittings are options only. Standard process connection is female ¼” BSPP tread. If additional information is needed, please consult PKP. Manual Version Page... -
Page 43: Dimensional Drawings ½" In Mm
6.14. Dimensional drawings ½” in mm “P” referes to the optional fittings length. Fittings are options only. Standard process connection is female ½” BSPP tread. If additional information is needed, please consult PKP. Manual Version Page DB04A EN A1-9 PKP Prozessmesstechnik... -
Page 44: Dimensional Drawings ½" In Inches
6.15. Dimensional drawings ½” in inches Units with ½” BSP process connections “P” referes to the optional fittings length. Fittings are options only. Standard process connection is female ½” BSPP tread. If additional information is needed, please consult PKP. Manual Version Page... -
Page 45: Wetted Parts Db04A Series
6.16. Wetted parts DB04A series Instrument Instrument Instrument Instrument DB04A DB04A DB04A DB04A series series series series Gerä ä ä ä t t t t Body 1.4404 (316L) or aluminium Grundkörper Body: O-Rings FKM (Standard), EPDM (option) Grundkörper: O-Ringe Flow divider 1.4305... -
Page 46: Contamination Statement
Must not come into contact with moisture Oxidizing Toxic Other hazards: ___________________________ Legally binding declaration We hereby confirm the correctness and completeness of the above information. Company: Address: Phone: Contact person: e-mail address: Date: Signature: Manual Version Page DB04A EN A1-9 PKP Prozessmesstechnik... -
Page 47: Overview Default Settings
Custom Settings Units Totalizer Custom 2), 3) Settings Filter Dynamic filter Medium High Very high Maximum Settings Filter Averaging filter Medium High Maximum Settings Resolution Flow 0.0001 0.001 0.01 Auto 1000 10000 Manual Version Page DB04A EN A1-9 PKP Prozessmesstechnik... - Page 48 3) If no units are specified for the totalizer, it is set it the same as the main unit without the time factor. For example: ln/min becomes ln, kg/hr becomes kg, etc. The totalizer unit can be changed by the user anytime. See 4.11.3 Totalizer 4.12.2 Units. Manual Version Page DB04A EN A1-9 PKP Prozessmesstechnik...
- Page 49 • • • • • • • • ...
- Page 50 ...
- Page 51 • • • • • • • ...
Need help?
Do you have a question about the DB04A and is the answer not in the manual?
Questions and answers