Instructions for HK Instruments models including: DPT-Ctrl AIR HANDLING CONTROLLER, AIR HANDLING CONTROLLER, HANDLING CONTROLLER
DPT-Ctrl » HK Instruments - User-friendly measuring devices
Copyrigh H Instrument 022 www.hkinstruments.fi Installation version 11.0 2022 INSTALLATION INSTRUCTIONS AIR HANDLING CONTROLLER DPT-Ctrl Series • READ THESE INSTRUCTIONS CAREFULLY BEFORE
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DocumentDocumentAIR HANDLING CONTROLLER DPT-Ctrl Series INSTALLATION INSTRUCTIONS INTRODUCTION Thank you for choosing an HK Instruments DPT-Ctrl series air handling controller with differential pressure or airflow transmitter. The DPT-Ctrl series PID controllers are engineered for building automation in the HVAC/R industry. With the built-in controller of the DPTCtrl it is possible to control the constant pressure or flow of fans, VAV systems or dampers. When controlling air flow, it is possible to select a fan manufacturer or a common measuring probe that has a K-value. APPLICATIONS DPT-Ctrl series devices are commonly used in HVAC/R systems for: · Controlling differential pressure or air flow in air handling systems · VAV applications · Controlling parking garage exhaust fans WARNING · READ THESE INSTRUCTIONS CAREFULLY BEFORE ATTEMPTING TO INSTALL, OPERATE OR SERVICE THIS DEVICE. · Failure to observe safety information and comply with instructions can result in PERSONAL INJURY, DEATH AND/OR PROPERTY DAMAGE. · To avoid electrical shock or damage to equipment, disconnect power before installing or servicing and use only wiring with insulation rated for full device operating voltage. · To avoid potential fire and/or explosion do not use in potentially flammable or explosive atmospheres. · Retain these instructions for future reference. · This product, when installed, will be part of an engineered system whose specifications and performance characteristics are not designed or controlled by HK Instruments. Review applications and national and local codes to assure that the installation will be functional and safe. Use only experienced and knowledgeable technicians to install this device. SPECIFICATIONS Performance Accuracy (from applied pressure): Model 2500: Pressure < 125 Pa = 1 % + ±2 Pa Pressure > 125 Pa = 1 % + ±1 Pa Model 7000: Pressure < 125 Pa = 1.5 % + ±2 Pa Pressure > 125 Pa = 1.5 % + ±1 Pa (Accuracy specifications include: general accuracy, linearity, hysteresis, long term stability, and repetition error) Overpressure: Proof pressure: 25 kPa Burst pressure: 30 kPa Zero point calibration: Automatic autozero or manual pushbutton Response time: 1.0-20 s, selectable via menu Technical Specifications Media compatibility: Dry air or non-aggressive gases Controller parameter (selectabe via menu): Setpoint 0...2500/7000 Pa P-band 0...10 000 I-gain 0...1000 D-factor 0...1000 Pressure units (select via menu): Pa, kPa, mbar, inWC, mmWC, psi Flow units (select via menu): Volume: m3/s, m3/hr, cfm, l/s Velocity: m/s, ft/min Measuring element: MEMS, no flow-through Environment: Operating temperature: -20...50 °C, -40C model: -40...50 °C Models with autozero calibration -5...50 °C Temperature compensated range 0...50 °C Storage temperature: -40...70 °C Humidity: 0 to 95 % rH, non condensing Physical Dimensions: Case: 90.0 x 95.0 x 36.0 mm Weight: 150 g Mounting: 2 each 4.3 mm screw holes, one slotted Materials: Case: ABS Lid: PC Protection standard: IP54 Display 2-line display (12 characters/line) Line 1: Direction of control output Line 2: Pressure or air flow measurement, selectable via menu Size: 46.0 x 14.5 mm Electrical connections: 4-screw terminal block Wire: 0.21.5 mm2 (1624 AWG) Cable entry: Strain relief: M16 Knockout : 16 mm Pressure fittings 5.2 mm barbed brass + High pressure - Low pressure Electrical Voltage: Circuit: 3-wire (V Out, 24 V, GND) Input: 24 VAC or VDC, ±10 % Output: 010 V, selectable via jumper Power consumption: <1.0 W, -40C model: <4.0 W when <0 °C Resistance minimum: 1 k Current: Circuit: 3-wire (mA Out, 24 V, GND) Input: 24 VAC or VDC, ±10 % Output: 420 mA, selectable via jumper Power consumption: <1.2 W -40C model: <4.2 W when <0 °C Maximum load: 500 Minimum load: 20 Conformance Meets the requirements for: CE: EMC: 2014/30/EU RoHS: 2011/65/EU WEEE: 2012/19/EU UKCA S.I. 2016/1091 S.I. 2012/3032 S.I. 2013/3113 Copyright HK Instruments 2022 www.hkinstruments.fi RoHS COMPLIANT Installation version 11.0 2022 SCHEMATICS MOUNTING THE DEVICE CONTINUED Figure 1 - Mounting orientation Connection for display Menu buttons SELECT LED UP CONTROL OUT DOWN P/V OUT ZERO 24 V GND Terminal block Pressure sensor 420 mA Out 010 V CTRL OUTPUT PRESSURE DIMENSIONAL DRAWINGS 90.0 36.0 77.0 YES NO NO STEP 2: WIRING DIAGRAMS For CE compliance, a properly grounded shielding cable is required. 1) Unscrew the strain relief and route the cable. 2) Connect the wires as shown in figure 2. 3) Tighten the strain relief. Figure 2a - Wiring diagram 010 V / 420 mA 010 V / 420 mA Control output Pressure/Flow output + Power supply 24 VDC / 24 VAC 24 V GND 71.5 53.0 95.0 Ctrl output Pressure DPT-Ctrl 4.2 INSTALLATION 1) Mount the device in the desired location (see step 1). 2) Open the lid and route the cable through the strain relief and connect the wires to the terminal block(s) (see step 2). 3) The device is now ready for configuration. WARNING! Apply power only after the device is properly wired. Figure 2b - Output mode selection: Default selection 010 V for both Jumper installed to the two lower pins on the left side: 010 V output selected for control output Jumper installed to the two upper pins on the left side: 420 mA output selected for control output Jumper installed to the two lower pins on the right side: 010 V output selected for pressure Jumper installed to the two upper pins on the right side: 420 mA output selected for pressure STEP 1: MOUNTING THE DEVICE 1) Select the mounting location (duct, wall, panel). 2) Use the device as a template and mark the screw holes. 3) Mount with appropriate screws. Copyright HK Instruments 2022 www.hkinstruments.fi Installation version 11.0 2022 step 3: CONFIGURATION 1) Activate the device Menu by pushing the the select button for 2 seconds. 2) Select the functioning mode of the controller: PRESSURE or FLOW. Select PRESSURE when controlling a differential pressure. CONTROL UNIT PRESSURE SELECT UP DOWN 3) Select pressure unit for display and output: Pa, kPa, mbar, inWC or mmWC. PRESS. UNIT Pa SELECT UP DOWN 4) Pressure output scale (P OUT). Select pressure output scale to improve output resolution. P OUTPUT MAX 2000 Pa SELECT UP DOWN 5) Response time: Select response time between 1.0-20 s. RESPONSE TIME 4 s SELECT UP DOWN 6) Select the setpoint of the controller. REF PRESSURE 100 Pa SELECT UP DOWN 7) Select proportional band according to your application specifications. P-VALUE 206 SELECT UP DOWN 8) Select integral gain according to your application specifications. I-VALUE 4.00 SELECT UP DOWN 9) Select derivation time according to your application specifications. D-VALUE 1.00 SELECT UP DOWN 10) Push select button to exit menu and to save changes. SELECT SELECT EXIT MENU Select FLOW when controlling an air flow. CONTROL UNIT FLOW SELECT UP DOWN CONFIGURATION CONTINUED 1) Select the functioning mode of the controller - Select Manufacturer when connecting DPT-Ctrl to a fan with pressure measurement taps - Select Common probe when using DPT-Ctrl with a common measurment probe that follows the formula: q = k P (i.e. FloXact) MANUFACTURER Common probe Common probe SELECT UP DOWN Flakt Woods SELECT UP DOWN 2) If Common probe selected: select measurement units used in the formula (aka Formula unit) (i.e. l/s) FORMULA UNIT l/s SELECT UP DOWN 3) Select K-value a. If manufacturer selected in step 1: Each fan has a specific K-value. Select the K-value from fan manufacturer's specifications. b. If Common probe selected in step 1: Each common probe has a specific K-value. Select the K-value from common probe manufacturer's specifications. Available K-value range: 0.001...9999.000 K-VALUE 9000.000 SELECT UP DOWN 4) Select flow unit for display and output: Flow volume: m3/s, m3/h, cfm, l/s Velocity: m/s, f/min FLOW UNIT m3/s SELECT UP DOWN 5) Flow output scale (V OUT): Select flow output scale to improve output resolution. V OUTPUT MAX 50.000 m3/s SELECT UP DOWN 6) Response time: Select response time between 1.020 s. RESPONSE TIME 4 s SELECT UP DOWN 7) Select a setpoint of the controller. REF FLOW 0.025 m3/s SELECT UP DOWN Copyright HK Instruments 2022 www.hkinstruments.fi Installation version 11.0 2022 CONFIGURATION CONTINUED 8) Select proportional band according to your application specifications. P-VALUE 206 SELECT UP DOWN 9) Select integral gain according to your application specifications. I-VALUE 4.00 SELECT UP DOWN 10) Select derivation time according to your application specifications. D-VALUE 1.00 SELECT UP DOWN 11) Push select button to exit menu. SELECT SELECT EXIT MENU STEP 4: ZEROING THE DEVICE NOTE! Always zero the device before use. To zero the device two options are available: 1) Manual Pushbutton zero point calibration 2) Autozero calibration Does my transmitter have an autozero calibration? See the product label. If it shows -AZ in the model number, then you have the autozero calibration. 1) Manual Pushbutton zero point calibration NOTE: Supply voltage must be connected at least one hour prior to zero point adjustment. a) Disconnect both pressure tubes from the pressure ports labeled + and . b) Push down the zero button until the LED light (red) turns on and the display reads "zeroing" (display option only). (see figure 4) c) The zeroing of the device will proceed automatically. Zeroing is complete when the LED turns off, and the display reads 0 (display option only). d) Reinstall the pressure tubes ensuring that the High pressure tube is connected to the port labeled +, and the Low pressure tube is connected to the port labeled -. Press down button Figure 4 LED turns ON Display reads "Zeroing" LED ZEROING THE DEVICE CONTINUED 2) Autozero calibration If the device includes the optional autozero circuit, no action is required. Autozero calibration (-AZ) is an autozero function in the form of an automatic zeroing circuit built into the PCB board. The autozero calibration electronically adjusts the transmitter zero at predetermined time intervals (every 10 minutes). The function eliminates all output signal drift due to thermal, electronic or mechanical effects, as well as the need for technicians to remove high and low pressure tubes when performing initial or periodic transmitter zero point calibration. The autozero adjustment takes 4 seconds after which the device returns to its normal measuring mode. During the 4 second adjustment period, the output and display values will freeze to the latest measured value. Transmitters equipped with the autozero calibration are virtually maintenance free. -40C MODEL: OPERATION IN COLD ENVIRONMENT The lid of the device has to be closed when the operation temperature is below 0 °C. The display needs 15 minutes to warm up if the device is started in temperature below 0 °C. NOTE! The power consumption rises and there can be an additional error of 0,015 volts when the operation temperature is below 0 °C. RECYCLING/DISPOSAL The parts left over from installation should be recycled according to your local instructions. Decommissioned devices should be taken to a recycling site that specializes in electronic waste. WARRANTY POLICY The seller is obligated to provide a warranty of five years for the delivered goods regarding material and manufacturing. The warranty period is considered to start on the delivery date of the product. If a defect in raw materials or a production flaw is found, the seller is obligated, when the product is sent to the seller without delay or before expiration of the warranty, to amend the mistake at his/her discretion either by repairing the defective product or by delivering free of charge to the buyer a new flawless product and sending it to the buyer. Delivery costs for the repair under warranty will be paid by the buyer and the return costs by the seller. The warranty does not comprise damages caused by accident, lightning, flood or other natural phenomenon, normal wear and tear, improper or careless handling, abnormal use, overloading, improper storage, incorrect care or reconstruction, or changes and installation work not done by the seller. The selection of materials for devices prone to corrosion is the buyer's responsibility, unless otherwise is legally agreed upon. Should the manufacturer alter the structure of the device, the seller is not obligated to make comparable changes to devices already purchased. Appealing for warranty requires that the buyer has correctly fulfilled his/her duties arisen from the delivery and stated in the contract. The seller will give a new warranty for goods that have been replaced or repaired within the warranty, however only to the expiration of the original product's warranty time. The warranty includes the repair of a defective part or device, or if needed, a new part or device, but not installation or exchange costs. Under no circumstance is the seller liable for damages compensation for indirect damage. Copyright HK Instruments 2022 www.hkinstruments.fi Installation version 11.0 2022Adobe PDF Library 16.0.7 Adobe InDesign 17.3 (Windows)