Greystone Energy Systems – HVAC Sensors and Transmitters
Instruction Manual for GREYSTONE models including: GP Series Gage Pressure Transmitter, GP Series, Gage Pressure Transmitter, Pressure Transmitter, Transmitter, IN-GE-GPXXX
Index of /Install Notes
Remove the pressure sensor from the remote cable by unscrewing and pulling apart from the remote ... Pull at least six inches of wire into the enclosure, then ...
File Info : application/pdf, 6 Pages, 356.17KB
DocumentDocumentGage Pressure Transmitter GP Series - Installation Instructions INTRODUCTION The gage pressure transmitter is designed with a single remote sensor that enables it to accept high pressure in several ranges up to 500 PSI, 35 Bar or 3500 kPa. All models can handle overload pressure 2X the maximum full scale range and burst pressure is 5X the maximum full scale range. Features include field selectable pressure ranges and output signal types, output reversal and slow-damping for the most flexible applications. The pressur transmitter is fully factory calibrated and temperature compensated for the highest start-up accuracy. WARNING : Ensure that the maximum port pressure does not exceed the highest pressure range of the device. For example, the maximum port pressure on a 102 model is 100 PSI. Exceeding this may give erroneous readings or damage the sensor. See Figure 12 for ratings. BEFORE INSTALLATION Read these instructions carefully before installing and commissioning the transmitter. Failure to follow these instructions may result in product damage. Do not use in an explosive or hazardous environment, with combustible or flammable gases, as a safety or emergency stop device or in any other application where failure of the product could result in personal injury. Take electrostatic discharge precautions during installation and do not exceed the device ratings. MOUNTING The transmitter mounts on a vertical surface using the two integrated mounting holes. The remote sensor cable connection should be located on the bottom of the enclosure. The two mounting holes will facilitate a #10 size screw (not supplied). See Figure 1. Ensure there is enough space around the unit to make the electrical Figure 1 connections and that it is within an acceptable distance for the length of remote sensor cable. Avoid locations with severe vibrations or excessive moisture. The enclosure has a standard opening for a conduit connector or cable gland type fitting. The enclosure has a hinged cover with a latch. Open the cover by pulling slightly on the latch on the bottom side of the enclosure and at the same time pulling on the cover, as illustrated in Figure 2. A 1/2" NPT threaded connection hole is provided on the left side of the enclosure. See Figure 3. Screw the EMT connector or cable gland connector in until tight. It is recommended that weatherproof conduit or cable gland fittings be used. The F style enclosure includes 1/2" NPT to M16 thread adapter and cable gland fitting. See Figure 4. Figure 2 Two security screws are provided which can be installed to help secure the cover once settings and wiring connections are complete. See Figure 5. Figure 3 Conduit Figure 4 Figure 5 Thread adapter and cable gland fitting IN-GE-GPXXX-03 EMT Connector Copyright © Greystone Energy Systems, Inc. All Rights Reserved Phone: +1 506 853 3057 Web: www.greystoneenergy.com Page 1 PLUMBING The stainless steel pressure sensor incorporates 1/4" NPT male threads for connection to the pipe being monitored. See Figure 6. Do not allow material to fall into the pressure ports as contamination could damage the sensors. It is recommended to use Teflon tape to prevent leaks. Remove the pressure sensor from the remote cable by unscrewing and pulling apart from the remote cable boot as shown in Figure 7. Wrap 1/4" NPT male sensor threads with Teflon tape. Screw into the sensor port on the pipe being monitored until finger tight. Using an appropriate size wrench, tighten the fitting until snug as shown in Figure 8. Reconnect the remote sensor cable by aligning the remote sensor cable boot and screwing onto the sensor. See Figure 9. Figure 6 Figure 7 High Pressure Sensor Shut Off Valve Supply Water Line Pump Direction of Water Flow Return Water Line Direction of Water Flow Figure 8 Figure 9 CONFIGURATION Most configuration is done using User Menu setting with LCD and push buttons on the PCB. See User Menu section for details. Warning: The transmitter must not have power applied during set up or when making changes to the output signal. OUTPUT SELECTION: The transmitter features user-selectable output signals of 4-20 mA, 0-5 Vdc and 0-10 Vdc. It is factory configured to operate in the Current (4-20 mA output) mode, but can be changed to Voltage mode by moving the output selection Figure 10 jumper from the position marked mA to the position marked VOLT as shown in Figure 10. Voltage Mode VOLT mA In Voltage mode the output scale may be changed to either 0-5 or 0-10 Vdc by accessing under User COM PWR Menu. OUT ZERO mA VOLT MENU DOWN ZERO/UP Current Mode VOLT mA IN-GE-GPXXX-03 Copyright © Greystone Energy Systems, Inc. All Rights Reserved Phone: +1 506 853 3057 Web: www.greystoneenergy.com Page 2 WIRING · Deactivate the 24 Vac/dc power supply until all connections are made to the device to prevent electrical shock or equipment damage. · Use 14-22 AWG shielded wiring for all connections and do not locate the device wires in the same conduit with wiring used to supply inductive loads such as motors. Make all connections in accordance with national and local codes. · Pull at least six inches of wire into the enclosure, then complete the wiring connection according to the wiring diagram for the applicable power supply and output signal type. · Connect the plus DC or the AC voltage hot side to the PWR terminal. For voltage output or AC power, the supply Common is connected to the COM terminal. DO NOT connect power to the OUT terminal as the device will be damaged. It has half-wave power supply so the supply Common is the same as the signal Common. See Figure 11. · The analog output is available on the OUT terminal. Check the controller Analog Input to determine the proper connection before applying power. · If using the Zero function, connect the Remote Zero Switch between the ZERO and COM terminals. Figure 11 Wiring if using the remote zero input Remote Zero Switch WARNING: Do NOT apply voltage to Zero terminal COM PWR OUT ZERO MENU DOWN ZERO/UP mA VOLT COM PWR OUT ZERO External Power Supply Wiring for all output signals and 24 Vac/Vdc power from controller COM PWR OUT External Power Supply Wiring for all output signals and external 24 Vac power transformer or 24 Vdc power supply COM PWR OUT ZERO External Power Supply START-UP Upon applying power to the device, it will enter the start-up mode. The LCD will display the current operating settings for 2 seconds each. 1. SOFTWARE VERSION NUMBER Version 1.00 2. MODEL PRESSURE RANGE P Range 50PSI 3. THE OUTPUT TYPE Output 4-20mA At the end of start-up mode the device will enter normal mode displaying pressure read from sensors. 0.0 PSI IN-GE-GPXXX-03 Copyright © Greystone Energy Systems, Inc. All Rights Reserved Phone: +1 506 853 3057 Web: www.greystoneenergy.com Page 3 USER MENU The User Menu can be accessed by pressing the <MENU> key at any time after the start-up mode. Note that the <ZERO> key function changes to an <UP> key function when a menu is active. The system suspends operation when in the menu and holds the last pressure value as the output value. If the User Menu is not active for 5 minutes (no key press), then the menu will exit and the device returns to normal operation. The User Menu operation and parameters are explained below. <MENU> Press and release the <MENU> key to enter the User Menu 1. OUTPUT Output 0-5 Vdc This item only appears if the PCB switch is in the VOLT position. Use <UP> or <DOWN> to set the output signal type to 0-5 or 0-10 Vdc. The factory default is 0-5 Vdc. <MENU> Press to save and advance to next menu item 2. PRESSURE RANGE P. Range 500 PSI The pressure range defaults to the largest range (1) of the device. Use <UP> or <DOWN> to step through the four available ranges specific to the model. Available options are shown below in Figure 12: Figure 12 Model 01 02 03 04 05 06 07 08 09 10 11 12 1 50 PSI 100 PSI 250 PSI 500 PSI 5.0 Bar 7.0 Bar 10 Bar 35 Bar 500 kPa 700 kPa 1000 kPa 3500 kPa PRESSURE RANGE 2 25 PSI 3 10 PSI 50 PSI 125 PSI 250 PSI 20 PSI 50 PSI 100 PSI 2.5 Bar 1.0 Bar 3.5 Bar 5 Bar 1.4 Bar 2 Bar 17.5 Bar 250 kPa 350 kPa 500 kPa 1750 kPa 7 Bar 100 kPa 140 kPa 200 kPa 700 kPa 4 5 PSI 10 PSI 25 PSI 50 PSI 0.5 Bar 0.7 Bar 1 Bar 3.5 Bar 50 kPa 70 kPa 100 kPa 350 kPa <MENU> 3. DAMPING Damping 4 sec <MENU> 4. OUTPUT Output Direct <MENU> Press to save and advance to next menu item The pressure averaging time for surge damping defaults to 4 seconds. This can be changed from 1 to 60 seconds using <UP> or <DOWN>. Press to save and advance to next menu item The analog output defaults to Direct (4-20 mA, 0-5 Vdc or 0-10 Vdc). Use <UP> or <DOWN> to change it to Reverse (20-4 mA, 5-0 Vdc or 10-0 Vdc). Press to save and advance to next menu item IN-GE-GPXXX-03 Copyright © Greystone Energy Systems, Inc. All Rights Reserved Phone: +1 506 853 3057 Web: www.greystoneenergy.com Page 4 5. BACKLIGHT Backlite Auto The backlight operation defaults to Auto. It can be set to Off or On using <UP> or <DOWN>. Auto means the LCD backlight only lights when the menu is accessed, off means it never lights and on means it is always on. <MENU> Press to exit and return to normal operation. OPERATION During normal mode the device reads the pressure sensor and calculates the pressure value depending on the device model range and the selected pressure range. The pressure value is then displayed on the LCD and set as the output value for the analog output. The output value is updated once per second. The output value may be affected by device settings such as the pressure damping time. The pressure averaging setting controls how many readings are averaged to form the output value. For example, if the pressure averaging value is set to 30 seconds then 30 one-second readings are stored and averaged to form the output value. The next second will add a new reading and delete the first to form a new 30 second average for output. The output gets updated every second with a new average reading. On start-up when the first readings are obtained, the device averages the collected data as necessary until the required setting is reached. For example, if only 10 readings are available and the pressure averaging setting is 60 seconds then the output value is calculated as the average of those 10 readings. The next output value will be an average of 11 readings. This short-averaging will continue until the averaging setting is reached and then the output value will always be the average of 60 readings. If the averaging value is changed during operation, this process can be repeated for the new setting. The averaging value can be set from 1 to 60 seconds via the User Menu. During normal mode, the device also monitors the <ZERO / UP>, <DOWN> and <MENU> keys and takes appropriate action. The keys are used for accessing the user menu. The device also monitors a Volt/mA switch and determines the appropriate output scaling. The voltage span may be set via the User Menu to either 0-5 Vdc or 0-10 Vdc. A sensor auto-zero can be initiated by pressing and holding the internal <ZERO> switch for at least 3 seconds. If both pressure ports are close to zero pressure, then the device will calibrate with a new zero point. The auto-zero can also be initiated by holding the ZERO IN terminal low for 3 seconds. Generally, it is not recommended that a span calibration be performed in the field unless a high-quality calibrator with low differential pressure ranges is available and the temperature of the sensor can be maintained. SPECIFICATIONS Power Supply......................... 24 Vac/dc ± 10% (non-isolated half-wave rectified) Consumption ......................... 75 mA max @ 24 Vdc Output Signal......................... 4-20 mA sourcing, 0-5/0-10 Vdc (switch selectable) Output Drive .......................... Current: 500 ohms max Voltage: 10K ohms min Protection Circuitry.............. Reverse voltage protected, transient protected LCD ............................................ 35 x 15 mm (1.4 x 0.6"), 2-line x 8-character Accuracy .................................. ± 1% F.S. of selected range (range 4 is ±2% F.S.) @ 22°C (72°F) including hysteresis, non-linearity and repeatability Stability .................................... ± 0.25% FS typical (1 year) Pressure Ranges.................... 4 per model (menu selectable) Media Compatibility............ 17-4 PH stainless steel Proof Pressure........................ 2X highest range per model Burst Pressure ........................ 20X highest range per model Maximum Line Pressure..... = highest model range Pressure Cycles ...................... > 100 million Surge Damping..................... 1-60 seconds averaging (menu selectable) Zero Adjust ............................. Push-button and remote input Sensor Operating Range.... -40 to 105°C (-40 to 221°F) Operating Environment..... 0 to 50°C (32 to 122°F), 10 to 90 %RH non-condensing Pressure Connection ........... 1/4" NPT male Sensor Housing..................... IP67 Remote Sensor Cable.......... S: FT-6 plenum rated A: Armored Flexible S/S Wiring Connection............... 14-22 AWG screw terminal block Enclosure................................. Polycarbonate, UL94-V0 hinged cover with gasket, IP65 (NEMA 4X) F style includes thread adapter (1/2" NPT to M16) and cable gland fitting Dimensions............................. 112.5 W x 116.5 H x 53.7 D mm (4.43" x 4.59" x 2.11") Weight ...................................... 450g (15.9 oz) - Including remote cables and sensors Country of Origin.................. Canada IN-GE-GPXXX-03 Copyright © Greystone Energy Systems, Inc. All Rights Reserved Phone: +1 506 853 3057 Web: www.greystoneenergy.com Page 5 DIMENSIONS Various lengths available See ordering grid 68 mm 2.67" 99.7 mm 112.5 mm 3.925" 4.43" 0.5" NPT 116.5 mm 4.59" 53.7 mm 2.11" PRINTED IN CANADA IN-GE-GPXXX-03 Copyright © Greystone Energy Systems, Inc. All Rights Reserved Phone: +1 506 853 3057 Web: www.greystoneenergy.com Page 6