Installation and operation manual DPC200 - DIFFERENTIAL PRESSURE CONTROLLER Low pressure with PI-control-mode Doc.-no.: DPC200_01_EBM_UK Issue: 12/2015 Manufacturer: Arthur Grillo GmbH Am Sandbach 7 40878 Ratingen Phone: Fax: E-Mail: Website: +49 21 02 - 47 10 22 +49 21 02 - 47 58 82 [email protected] www.grillo-messgeraete.de www.sensor-store.de Issue: Doc.-no.: 12/2015 DPC200_001_EBM_UK This documentation including all parts is protected by copyright. Any utilisation or modification other than permissible under the strict limitations of copyright law is prohibited and liable to prosecution without the approval of the Arthur Grillo GmbH. This applies in particular to duplications, translations, microfilming and storage and processing in electronic systems. 2 Doc.-no.: DPC200_01_EBM_UK Issue: 12/2015 TABLE OF CONTENT Table of content 1 General safety instructions 04 1.1 Signal words for safety instructions 04 1.2 Used pictograms and symbols 04 1.3 General notes 04 2 Product description05 2.1 Type plate 05 2.2 Intended use 05 2.3 Functional description 05 3 Installation06 3.1 Dimensions 06 3.2 Wall mounting 06 4 Start up07 4.1 Overview DPC200 07 4.2 Schematic view inside 07 4.3 Pressure connections 07 4.4 Electrical connection 08 4.5 Zero adjustment 08 5 Operation08 5.1 Start menu 08 5.2 Menu structure 09 5.3 Measuring mode 10 5.4 Control mode 11 5.5 Adjustable parameters 12 5.6 Function alarm output 13 6 Maintenance13 7 Warranty14 8 Troubleshooting14 9 Disposal14 10 Specifications 11 Ordering information 15 16 10.1 CE-labelling 16 Doc.-no.: DPC200_01_EBM_UK Issue: 12/2015 3 GENERAL SAFETY INSTRUCTIONS 1. General safety instructions 1.1 Signal words for safety instructions The safety instructions in this operation manual are designed to prevent hazards.They can be found in the operation manual before an operation / task / activity is described, which can entail a possible hazard. CAUTION Identification of a hazard with a low risk, which can lead to material damage or minor or moderate bodily injuries. NOTICE Signal word for important information regarding the product, which needs to be specifically pointed out. Hazard word Type of hazard Hazard source Hazard prevention 1.2 Used pictograms and symbols In this manual the following symbols are used: General hazard symbol (danger, warning, caution) General information 1.3 General notes NOTICE 4 This manual contains information for installation and operation of the pressure controller and is exclusively for the operator and expert staff. The guidelines in this manual will help to avoid danger and downtime. Doc.-no.: DPC200_01_EBM_UK Issue: 12/2015 PRODUCT DESCRIPTION 2. Product description The differential pressure controller DPC200 measures low pressure of inert gases, particularly of air. 2.1 Type plate 1. 2. 3. 4. 5. 6. Product name Measuring range Supply voltage Signal output Serial no. Manufacturer pressure controller 1. DPC200-EP500 measurement range: 500 Pa 2. supply voltage: 3. US (1+ 2-) = 10 ... 30 Vdc / 24 Vac signal output: 4. Uout (3+ 4-) = 0 ... 10 V part-no.: 2572 IP54 5. serial-no.: 15. 4700 Made in Germany Arthur Grillo GmbH • Ratingen 6. 2.2 Intended use This device is primarily intended for use with air conditioning systems, room pressure control or filter control with ebm-papst continuously variable speed fans. It can be operated solely as a sensor (measuring mode) or closed loop controller for pressure / volumetric flow rate control. As analogue output the operator can use a signal from 0 ...10 V DC. Depending on the settings the signal has different meanings: 1. If the device is used as a pressure sensor, the output signal is proportional to the measured pressure. 2. As a volume flow sensor the device outputs a square root signal. 3. With closed loop pressure or volume flow the output signal stands for the control variable of the PI-control. 2.3 Functional description A soft silicone diaphragm is used as sensor. Under the influence of the differential pressure the diaphragm displaces a measuring spring until the spring force compensates for the pressure pushing on the diaphragm. A contactless differential transformer and suitable electronics convert this displacement into a continuously variable output voltage signal. The DPC200 provides two function options: 1. On the one hand it is used as a measuring device. In the measuring mode the differential pressure is shown on the display, and a proportional 0...10V DC output signal is provided. 2. Besides the measuring mode the DPC200 also can be operated in a control mode. Two setpoints can be adjusted in the device and can be selected with the potential free contact input. The PI-Algorithm matches the measured differential pressure with the setpoint and operates the control variable so that a constant pressure results.The control variable is given as a 0...10 V DC output signal. Instead of the quantity ‘differential pressure’ also the quantity ‘volume flow’ can be used for measuring and for control. Doc.-no.: DPC200_01_EBM_UK Issue: 12/2015 5 INSTALLATION 3.Installation The differential pressure controller DPC200 is designed for wall mounting. • The mounting surface must be solid enough and vibration-free. • The environment has to fulfil the ambient climatic conditions as given in the technical data. CAUTION Material damage Read the manual carefully before installation and operation Only experienced staff may connect the device and bring it into operation. NOTICE • • The device is position depended. The DPC200 must be mounted vertically. 3.1 Dimensions All dimensions in mm. 54 70 95 ø6 ø5 M16x1,5 + 4,5 104 3.2 Wall mounting 1. 2. 3. 4. 6 Hold the DPC200 against the wall. Mark the mounting holes. Drill mounting holes for properly sized screws. Put the screws through the housing mounting holes. Tighten screws. Doc.-no.: DPC200_01_EBM_UK Issue: 12/2015 START UP 4. Start up 4.1 Overview DPC200 1. 2. 3. 4. 5. Front cover Cable gland Pressure connection 1 Pressure connection 2 Cable gland 1. 3. 2. 4. 5. 4.2 Schematic view inside Button T1 Button T2 Button T1 and T2 serve for the operation of the menu 4.3 Pressure connections Connect all pressure connections properly with plastic tubing (inner diameter 5 or 6mm). Doc.-no.: DPC200_01_EBM_UK Issue: 12/2015 7 OPERATION 4.4 Electrical connection DPC200 1 + 10...30 Vdc or 24 Vac (±15%) excitation 2 - GND (return) 3 ∆P + 0...10 Vdc output 4 - GND (return) 5 dry contact open: Setpoint 1 close: Setpoint 2 6 7 Alarm output high ohm: alarm off low ohm: alarm on maximum customer circuit 30 Vdc / 30 mA 8 Alarm output: Open Collector 1. Unscrew screws of the front cover. 2. Open frontDPC200 cover. 1 + 10...30 Vdc oder 24 Vac (±15%) Versorgung 3. Use M16 cable glands for connecting wiring to terminals. 2 - GND 3 4.5 Zero adjustment + 0...10 Vdc Ausgang ∆P The output signal offset can be zeroed from the outside with a small bar magnet. Do not 4 - GND use buttons T1 or T2. 5 6 Potentialfreier Kontakt Adjustment: offen: Sollwert 1 7 • geschlossen: Sollwert 2 8 • Alarm Ausgang: Open Collector N S ∆P 5.Operation 5.1 Start menu Remove the tubing from the pressure Alarm Ausgang hochohmig: Alarm aus connections. niederohmig: Alarm an Hold the bar magnet (N/S) as / shown here maximaler externer Stromkreis: 30 Vdc 30 mA to the zero point adjustment for a short period of time to activate an internal reed switch. The new zero point will be displayed and stored. 1 + Versorgung: 10...30 Vdc; 24 Vac +/-15% 2 - GND 3 + Ausgang 0...10 V For operating the menu, unscrew the front cover to reach buttons T1 and T2. 8 Doc.-no.: DPC200_01_EBM_UK Issue: 12/2015 OPERATION 5.2 Menu structure Doc.-no.: DPC200_01_EBM_UK Issue: 12/2015 9 OPERATION 5.3 Measuring mode Display ΔP Measurement 200 Pa menu unit metric operating mode control mode parameter diff. pressure limit switch 150 Pa back and confirm fan k-factor k = 70 limit switch 300 m³/h back and confirm 10 Action Start menu: Press button T1 approx. two seconds Press button T2 to get to the next menu item Press button T1 to switch between: metric <=> imperial Press button T2 to get to the next menu item Press button T1 to switch between: measuring mode <=> control mode Press button T2 to get to the next menu item Press button T1 to switch between: diff. pressure <=> volume flow Press button T2 to get to the next menu item If selected parameter = diff. pressure Button T1: reset value Button T2: set value Button T1: confirm value, display flashes once Press button T2 to get to the next menu item Press button T1 to leave the menu Press button T2 to stay in the menu If selected parameter = volume flow than follows the additional input for the k-factor Button T1: reset value Button T2: set value Button T1: confirm value, display flashes once Press button T2 to get to the next menu item Button T1: reset value Button T2: set value Button T1: confirm value, display flashes once Press button T2 to get to the next menu item Press button T1 to leave the menu Press button T2 to stay in the menu Doc.-no.: DPC200_01_EBM_UK Issue: 12/2015 OPERATION 5.4 Control mode Display ΔP Measurement 200 Pa menu unit metric operating mode control mode parameter diff. pressure setpoint 1 50 Pa setpoint 2 250 Pa output voltage U = 10,0 V DC P - parameter 50 l - parameter 3,15 controlling mode positive / heating back and confirm Action Start menu: Press button T1 approx. two seconds Press button T2 to get to the next menu item Press button T1 to switch between: metric <=> imperial Press button T2 to get to the next menu item Press button T1 to switch between: measuring mode <=> control mode Press button T2 to get to the next menu item Press button T1 to switch between: diff. pressure <=> volume flow Press button T2 to get to the next menu item If selected parameter = diff. pressure resp. after the input of the k-factor follows: Button T1: reset value Button T2: set value Button T1: confirm value, display flashes once Press button T2 to get to the next menu item Button T1: reset value Button T2: set value Button T1: confirm value, display flashes once Press button T2 to get to the next menu item Button T1: reset value Button T2: set value Button T1: confirm value, display flashes once Press button T2 to get to the next menu item Button T1: reset value Button T2: set value Button T1: confirm value, display flashes once Press button T2 to get to the next menu item Button T1: reset value Button T2: set value Button T1: confirm value, display flashes once Press button T2 to get to the next menu item Press button T1 to switch between: positive / heating <=> negative / cooling Press button T2 to go to the next menu Press button T1 to leave the menu Press button T2 to stay in the menu Doc.-no.: DPC200_01_EBM_UK Issue: 12/2015 11 OPERATION If selected parameter = volume flow than follows the additional input for the k-factor Button T1: reset value Button T2: set value Button T1: confirm value, display flashes once Press button T2 to get to the next menu item fan k-factor k = 70 5.5 Adjustable parameters Parameter Unit Selection or parameter range Default setting Metric or imperial metric Operating mode: Measuring mode or control mode measuring mode Parameter Differential pressure ΔP [Pa or InH2O] Volume flow V [m3/h or cfm] differential pressure ΔP [Pa] Volume flow calculation according to: V = k · √Δp with: V = Volume flow in m3/h or cfm k = flow factor, adjustment range: 1...1000 measuring range up to 4000 Pa Δp = differential pressure in Pa or InH20 K-factor: Volume flow calculation up to 65,500 m3/h (38,514 cfm) In measuring or control mode Maximum volume flow (Vmax) Measuring range: 50 Pa, k=1000 Measuring range: 500 Pa, k=1000 Measuring range: 1000 Pa, k=1000 Measuring range: 2000 Pa, k=1000 Measuring range: 4000 Pa, k=1000 Vmax = 7,071 m3/h; (4,157 cfm) Vmax = 22,360 m3/h; (13,147 cfm) Vmax = 31,622 m3/h; (18,593 cfm) Vmax = 44,721 m3/h; (26,295 cfm) Vmax = 63,245 m3/h; (37,188 cfm) Differential pressure from 0 % up to 100 % of measuring range. Limit values: Volume flow from 5 % up to 100 % of measuring range, k-factor is considered. Nominal values (setpoints): OFF Differential pressure from 0 % up to 100 % of measuring range. Volume flow from 5 % up to 100 % of measuring range, k-factor is considered. Set 1: 75 % Set 2: 25 % Output voltage: 0…10 V DC Uout = 10 V DC P-gain: 0...1000 P = 50 I-gain: 0…100 positive/(heating): Control deviation = set value – actual value The output increases when set value > actual value. I = 3.15 Control characteristic: 12 K = 70 negative/(cooling): Control deviation = actual value – set value The output increases when actual value > set value Doc.-no.: DPC200_01_EBM_UK Issue: 12/2015 positive / heating OPERATION 5.6 Function alarm output The DPC200 has an open collector alarm output; depending on the operating mode the function is different. At the alarm event a contact between terminal no. 7 and no. 8 gets low-resistive and can be loaded with a maximum of 30 V DC/ 30 mA. When the alarm is switched off the contact will be high-resistive. During alarm state in the control mode / measuring mode an exclamation point is displayed (2nd line / 16th character). Control mode: In order to recognize the limits of control, the alarm output in the control mode refers to the set maximum output voltage (MaxUout). MaxUout can be set in the menu item „output voltage“. In the default setting the value is set to 10 V DC. Alarm ON: Output voltage for 12 seconds constantly greater than: 0.95 • MaxUout Alarm OFF: Output voltage for 12 seconds constantly less than: 0.9 • MaxUout Measuring mode: For limit value monitoring a limit value can be entered. This value is set in the menu item „limit switch“. The previously set parameters are taken into account (unit, parameter, k-factor and the measuring range). In the default setting the limits are not active. Display 2nd line: „OFF“ Alarm ON: Measurement for 12 seconds constantly greater than 1.0 • limit value Alarm OFF: Measurement for 12 seconds constantly less than 0.95 • limit value Doc.-no.: DPC200_01_EBM_UK Issue: 12/2015 13 WARRANTY & SUPPORT 6.Maintenance The DPC200 contains no wearing or consumable parts. Servicing is not required. On request, Arthur Grillo GmbH offers an annual calibration with factory certificate. For information, please contact: Arthur Grillo GmbH Am Sandbach 7 40878 Ratingen Phone: +49 21 02 - 47 10 22 Fax: +49 21 02 - 47 58 82 E-Mail: [email protected] 7.Warranty Warranty and liability claims for personal and property damage are excluded if they are caused by one or more of the following reasons: • • • • Improper use of the device. Improper installation, commissioning, operation and maintenance of the device. Unauthorized modifications to the device beyond the intended use. Disasters due to external influences and force majeure. 8.Troubleshooting Description Display does not show anything Measurement stays zero Measuring error Error remains Activity Check electrical connection Function test with a slight pressure increase in measuring mode for differential pressure Perform zeroing as described in chapter 4.5. Contact manufacturer 9.Disposal Dispose of parts so as not to endanger human health or the environment. Follow the laws in the country of use for disposing of electronic components and devices during disposal. 14 Doc.-no.: DPC200_01_EBM_UK Issue: 12/2015 SPECIFICATIONS 10. Specifications Measuring medium: Measuring principle: Air or inert gases Silicon diaphragm with spring and differential transformer Lowest span: Highest span: Overpressure protection: Static pressure: Pressure connections: Enclosure: Electrical connections: 0...50 Pa 0...4000 Pa 0.2 bar max. 0.2 bar tubing 5 mm ø or 6 mm ø UL 94 HB; Case polyamid, cover ABS cable inlet M16x1.5, screw terminal Electronic protection against reversed polarization Supply voltage: Current consumption: Output: Alarm output: 10...30 Vdc; 24 Vac (±15%) approx. 10 mA @ 10 Vdc, ca. 12 mA @ 24 Vdc 0...10 V (Imax = 0.5 mA @ 10 Vdc, Imax = 2 mA @ 20 Vdc) Open Collector, max. 30 V / 30 mA Display: Mode: Controlling algorithm: Setpoints: LCD-Display, 2 x16 characters Measuring mode or controlling mode PI 2 setpoints adjustable within software, Setpoints are selectable with floating contact input Protection class: Ambient temperature: Storage temperature: Weight: Mounting: IP 54 according EN 60529 -10...50 °C -25...60 °C approx. 250 g vertical, position dependence by turning of 90°: approx. 25 Pa Interference / emission: according EN 61000-6-2, EN 61000-6-3, CE mark Influences / limits: Zero error: Sum of linearity and hysteresis (depends on measuring range): Temperature drift, zero point: Temperature drift, span: Doc.-no.: DPC200_01_EBM_UK ± 0.75 % ± 0.5 % ... ± 1 % ± 0.3 % / 10 K ± 0.2 % / 10 K Issue: 12/2015 15 CE-LABELLING & ORDERING INFORMATION 10.1CE-labelling As an electric device the DPC200 falls within the scope of the directive 2004/108/EG (EMV-directive). In the scope of the EMV-directive the following norms were applied: DIN EN 61000-6-2:2006-03 Electromagnetic compatibility (EMC) - Part 6-2: Generic Berichtigung 1:2011-06 standards - Immunity for industrial environments Electromagnetic compatibility (EMC) - Part 6-3: Generic DIN EN 61000-6-3:2011-09 standards - Emission standard for residential, commercial and light industrial environments You can order the Declaration of Conformity at: Arthur Grillo GmbH Am Sandbach 7 40878 Ratingen Phone: +49 21 02 - 47 10 22 Fax: +49 21 02 - 47 58 82 E-Mail: [email protected] 11. Ordering information Article Item no. 2570 Differential pressure controller DPC200 Measurement range: 0...50 Pa Differential pressure controller DPC200 Measurement range: 0...500 Pa Differential pressure controller DPC200 Measurement range: 0...1000 Pa Differential pressure controller DPC200 Measurement range: 0...2000 Pa Differential pressure controller DPC200 Measurement range: 0...4000 Pa Mounting set M-DS with screws, bleeders and 2m plastic tube (4 x 1,5 mm) 16 Doc.-no.: DPC200_01_EBM_UK 2572 2574 2576 2578 25110 Issue: 12/2015