ＫＨ15 Waterproof Pressure Transmitter USER`S MANUAL
Contents
1. TY KH15 014A KH15 Waterproof Pressure Transmitter USER S MANUAL KH15 LOG Thank you for choosing to purchase the KH15 pressure transmitter Before using your new transmitter please read through this manual to familiarize yourself with its functions NAGANO KEIKI 2014 11 TY KH15 014A Cautions for proper and safe operation To use this product accurately and safely carefully read this manual and the operation manual Incorrect usage may cause malfunction and result in human injury accidents etc The cautions and warnings in the document are indicated by the following Z WARNING Indicates that incorrect use may result in service injury or loss of life Z CAUTION Indicates that incorrect use may result in risk of injury or property damage WARNING 1 Do not apply more than the maximum allowable pressure Human injury or damage to surroundings may result due to explosion or breakdown of the pressure elements 2 Do not use this product on measured objects which are corrosive to fluid or gas contacting areas Human injury or damage to surroundings may result due to explosion or breakdown of the pressure elements and exposure of dangerous measured objects 3 Do not apply excessive weight vibration or shock Human injury or damage to surroundings may result due to explosion or breakdown of the pressure elements and exposure of dangerous measured2. e In case of voltage output 0 to 5 VDC output V in atmosphere release state 5V Upper limit output in range MPa 0 1MPal x 0 1 OV e g 0 5MPa Compound pressure range 0 833V 1 0MPa Compound pressure range 0 454V Ac AUTION Do not rotate span adjustment trimmer S during zero point adjustment TY KH15 014A 13 14 2 Span adjustment Except under special circumstances please refer all span adjustment to our company Do not attempt span adjustment without a pressure reference device When attempting span adjustment with a pressure reference device please follow the instructions below Also be careful of reversed output and alteration to the output values of compound gauges lt 1 Adjust zero output as described in 1 Zero point adjustment lt 2 In addition to the upper limit of the pressure range use the span adjustment trimmer to adjust the span output with the current output to 20mA DC and the voltage output to 5V DC or the span value lt 3 Continue to repeat and alternate lt 1 and lt 2 to adjust the zero and span Do not change zero point adjustment while rotating span adjustment trimmer Z CAUTION S e Avoid the application of pressure ranges above those on the device s faceplate 3 Countermeasures against noise Noise problems are complicated and often difficult to solve theoretically Countermeasures are mostly
3. 1 to 5V DC 0 to 5V DC Load resistance 10k Q min Load resistance 10k kd min Accuracy including linearity hysteresis repeatability 0 5 F S or 1 0 F S Operating temperature range Storage temperature range 20 to 70 C No freezing or condensation 7 30 to 80 C No freezing or condensation Temperature characteristics Responsiveness 0 1 F S C For both zero point and span 1 ms or shorter Wetted parts material Diaphragm SUS316L Fitting SUS316L Connecting size G1 4B G3 8B G1 2B R1 8 R1 4 R3 8 R1 2 NPT1 4 NPT3 8 NPT1 2 Weight Approx 240g including 2m cable Case structure 4 IP67 The 0 5H submersion confirmation at 1m depth according to JIS C 0920 CE marking Applicable Directive 2004 108 EC Applicable Standards EN61326 1 2006 EN61326 2 3 2006 1 Atmospheric pressure is transmitted to the gauge by way of a cable consequently in the case of pressure ranges below 1MPa please refrain from sealing the end of the cable with tape or adhesives during the wiring process In addition please avoid the use of cables which are not breathable e g which lack an opening down the middle 2 Allowable maximum pressure is the upper limit to which pressure may be temporarily increased while still allowing normal pressure to be resumed when pressure levels return to the normal rated range It is not guaranteed to have no im
4. e Appearance for scratches cracks warping corrosion etc e Corrosion status of pressure inlet s Insulation resistance between each terminal and the case 100M 2 or more at 50V DC e Check for leakage and re tightening of connecting screw e Output check by a reference pressure gauge Z CAUTION Avoid electrostatic charge When cleaning this instrument use a soft damp cloth Do NOT use thinner or benzines which cause deterioration and failure 2 Adjustment TY KH15 014A 11 14 Removing two screws on the top allows this product to perform the output adjustment When 2 screws are removed you can find the zero adjustment and span adjustment trimmers as shown in the right figure Zero adjustment Span adjustment trimmer Tighten the screws to a torque of about trimmer 6cNem after the adjustment After the screw seating surface touches the packing tighten the right half turn Tighten it carefully because that the packing may be twisted by tightening the screws vigorously Usable driver Tip thickness W 0 2 to 0 4mm Tip width H 1 2 to 1 4mm Axis diameter D 1 8DIA P Axis length L 15mm or more Recommended driver VESSEL ceramic adjustment driver D No 9000 1 3 x 30 y L Recommended driver CA UTION Avoid putting an excessive load on the trimmers This may damage the circuits Do not attempt adjustments while the product is
5. objects 4 Use with the unspecified power supply may cause fire hazard or electric shock 5 Use with the instrument temperature range Use outside the instrument temperature range may cause human injury or damage to surroundings due to explosion of breakdown of this product 6 Connect wiring accurately according to the wiring drawings or instructions in the operation manual Incorrect wiring may result in human injury or fire hazard 7 Use devices with an explosion proof construction when operating in place liable to have explosive gas Danger of ignition and explosion 8 Where the measurement object is oxygen use oil proof product In case of ordinary product there is a possibility that oil remains inside the product It may cause ignition or explosion by reaction with oxygen 9 Perform installation carefully according to the installation instructions of the instruction manual 10 Do not alter this product Also do not remodel this product by adding new functions Contact our company for repairs 11 Since this product is a precision measuring instrument keep the product as far away from noise source as possible Also remove noise from the power source by using noise filter etc Note Inform us in advance when using this product in a way that may result in fatal or serious injury due to malfunction or incorrect operation TY KH15 014A 1 14 CONTENTS Ws MARPAC TOM one scx cnce E E 2 2 OUNING
6. wet Allowing water to enter the product can cause accidents Please make adjustments after the product has been powered on and warmed up for 5 minutes of the trimmers Be extremely careful not to cause a short circuit with your screwdriver Use of a plastic or ceramic screwdriver is recommended Use a pressure reference or measuring device with good traceability for adjustments TY KH15 014A 12 14 1 Zero point adjustment Zero point adjustment is performed by rotating zero point adjustment trimmer with slotted screwdriver However the adjustment method differs between positive pressure range and compound pressure range as follows lt Positive pressure range gt Adjust the output in air ventilated unpressurized status to 4mA DC for current output 1V DC or OV DC for voltage output lt Compound pressure range gt Output value in air ventilated status is calculated according to the following formula e In case of current output 4 to 20mA DC output mA in atmosphere release state 16mA Upper limit output in range MPa 0 1MPal x 0 1 4mA e g 0 5MPa Compound pressure range 6 67mA 1 0MPa Compound pressure range 5 45mA e In case of voltage output 1 to 5 VDC output V in atmosphere release state 4V Upper limit output in range MPa 0 1MPa x 0 1 1V e g 0 5MPa Compound pressure range 1 667V 1 0MPa Compound pressure range 1 364V
7. 22 attest toll toll Sade Iota Sod lott Sot Sat Sd Sot So ea 2 3 Model number configuration sss sss eee eee eee eee 2 4 Specifications esse 3 5 Outline drawings Representative example eee eee eee 4 6 Wiring connection diagram and external Connection sss sese eee eee eee eee eee 5 P Operating PRINGIDICS catatonia le ltecls tails ite leis tly ea ie Jt es ale ldo 6 S Precautions fOr use eiieeii ee ee ae eea Taa ae d oZ d OZ d Gd Rd HZ da ode 7 TiNnStallationican sink eek eee eee eee eek eee eke ek 7 2 WINING COMMECTION sccoseceereeciesccadel ceceadceeeesel chee does enceesedthecdeed enceeseseheceseeeeeeers 8 3 Specifications of cable with Connector eee eee eee eee 8 4 Cautions for transportation ANd Control sese esse eee eee eee eee eee 9 5 CaUblonSifor Storage s cscces cesecenteesvcesccesetesccesetenccenceencceseeencceneeenecenteeneceneten 9 Vs Operation witness nou tnd annem E E ee Dio mike me reas 9 10 Maintenance and adjustment sees eee eee eee eee 10 sh aE SN AN lt T 10 2 Adjustme t sinea teucesictaccens E aaae Eaa aAa E AARRE ARAARA 11 3 Countermeasures against noise see eee 13 11 Warranty e iee e e e e e e dit alt ae E EE 14 b k OaE e EEEE PERERA EATE AEAEE EEE eth ethane she atl ek 14 TY KH15 014A 2 14 1 Introduction Please double check the specifications for the model that you have received If specifications such as the pressure range power source or output are incorrect acciden
8. 5 Power supply When connecting a device which may cause power surges from the same power supply install a varistor as a countermeasure to protect KH15 Before installation please check the rated value of the specifications for this AN product and select an appropriately rated power supply After double checking CAUTION the load resistance of this product please use adaptation equipment with internal resistance within that rated range TY KH15 014A 6 14 7 Operating principles The pressure receiving part of this product is a diaphragm which converts pressure into strain The amount of the strain is detected by the semiconductor strain gauge The detection circuit is the full bridge type whose four sides consist of semiconductor strain gauge From this bridge circuit electric signals proportional to the strain are obtained Then by the signal conversion shown below DC electricity or DC voltage is transmitted 1 Block diagram Pressure P Output circuit CHECK CH TY KH15 014A 7 14 8 Precautions for use 1 Installation 1 When this product is connected to the pressure line do NOT tighten the main body of the case with pipe wrench or similar For installation make sure to use hexagonal part of connection screw 2 When installing to pressure line do NOT install the product while the liquid is filled up in the pipe Since liquid is incompres
9. e note that there is blue wire other than red and white wires however the green wire is not used no internal connection Conductor Environmental Cross sectional Configuration Caile cuier temperature 2 9 diameter mm area mm pcs mm 0 2 Shielded cable standard 20 to 60 C AWG25 7 0 18 6 2 DIA E 0 3 Heat resistant cable 20 to 105 C AWG23 12 0 18 6 0 DIA Cold resistant cable 40 to 80 C 12 0 18 6 0 DIA AWG23 TY KH15 014A 9 14 4 Cautions for transportation and control 1 Cautions for transportation Since this product is a precision measuring instrument pay enough attention when transporting the product Drop or shock may cause a fatal damage 2 Cautions for unpacking Before unpacking check the appearance of the package When unpacking handle the package with care When bringing out the product from the packaging box be careful not to drop the product After unpacking check if there is any damage on the external surface and the product type is correct as it is ordered If any abnormality is found make contact with the distributor or NKS sales office 5 Cautions for storage To avoid failures or damages do not store this product in the places where gt exposed to water susceptible to adverse effects due to air pressure temperature humidity CAUTION ventilation sunlight particles salt or sulfur in the air exposed
10. ent it from operating normally e Please wrap tapered pipe threads in plumber s tape to prevent leaks If using straight pipe threads please check for debris dirt and damage to the washer and seal face before installation to prevent leaks If there is a danger of surge pressure please concurrently use a damper and joint with throttle Always avoid pulling or severely bending cables Also during installation be careful not to hang the full weight of any cables from this product 2 Wiring connection x Insert the cable with connector supplied into this transmitter Tighten the nut by hand until it stops Since lack of tightening can impair the waterproof performance please tighten firmly until it stops completely Specifications of cable with connector Specifications of cable with connector for wiring are as follows Specifications of cable with connector e Common specifications TY KH15 014A 8 14 1 T Shield cable Nut Usable plug R04 P6F 6 8 TAJIMI ELECTRONICS Co Ltd e Cable specifications Since the cable is a 4 wire cable there are 4 wires red white green and blue when stripping the cable sheath red and white wires are used for current output 2 wire however green and blue wires are not used no internal connection In addition for 3 wire cabl
11. ge caused by product incompatibility including those items listed above Obvious traces of misuse including deformation of parts wear or burnout shall exempt the device from its warranty regardless of customer s awareness of improper handling 12 Others This manual is not intended to cover all details of the equipment Nor is it intended to cover all details relating to installation and maintenance If you require a more detailed explanation or the device does not adequately serve your company s intentions please inquire with us Some of the information in this instruction booklet may change without notice due to revisions etc NAGANO KEIKI Website http www naganokeiki co jp Headquarters 30 4 Higashimagome 1 chome Ota ku Tokyo Japan 143 8544
12. incomplete If measured values fluctuate from time to time or differ from the actual pressure value they may be affected by noise If noise is overlapped on the power supply lines find out where the noise comes from and provide appropriate measures at the source of noise If the noise is constant use of a noise filter is effective It is also important to use other power lines that are free from noise Noise may be introduced to signal lines through external induction It is necessary to provide suitable measures such as moving the noise source to a remote place using magnetic or antistatic shield These countermeasures also apply to surge TY KH15 014A 14 14 11 Warranty If the delivered product is determined to be non compliant due to defects in manufacture or design within the warranty period 1 year from delivery to the customer Nagano Keiki will repair the product or exchange it for a compliant product at no cost Obvious traces of misuse including deformation of parts wear or burnout shall exempt the device from its warranty regardless of customer s awareness of improper handling 1 If the delivered product is dismantled modified has any parts replaced or features added by the customer or a third party besides us 2 If the instructions detailed in this manual or the catalog are not followed 3 Deterioration from use natural disasters fire or other force majeure 4 Secondary dama
13. pact on functionality in the case of repeated pressure or static pressure increases lasting 10 minutes or more 3 If the wetted part reaches temperatures exceeding 70 C due to steam hot water etc please be sure to install a pipe siphon or similar device to keep it below 70 C Also when measuring low temperature fluids such as cold water please employ preventive measures against condensation 4 Case and the connector portion is waterproof IP67 but please pay attention to the tightening of the fastening and adjustment screws of the connector 5 Please connect the product before use to an indoor power grid under 30 m which is protected from overvoltage caused by lightning strikes TY KH15 014A 4 14 5 Outline drawings Representative example Shield cable vT y K ZERO SPAN KH15 LD0 POWER 24VDC 0 kxMPa 0 5 a e 22X25 4HEX C 4 L d y R The hexagonal fitting is inscribed with LC TY KH15 014A 5 14 6 Wiring connection diagram and external connection 1 Wire connection 2 wire 3 wire A Red Power A Red Power C White Power C White COM E Green Output 2 Examples of external connection e g 1 2 wire system 4 to 20mA DC 4 to 20m ADC x Load resistance e g 2 3 wire system 1 to 5V DC 0 to 5V DC KH15 Power supply KH1
14. sible tightening a connecting screw may generate high pressure and instrument failure When installing to the existing pressure line or in the case of replacement drain the liquid inside the piping connection side and install the product with leaving air of about 15 to 20mm 3 Although this product has high vibration resistance since this product is a measuring instrument be careful not to apply severe vibration 4 Installation position may be vertical front to back side to side or horizontal 5 This product has protection code IP67 JIS C 0920 However for longer use select a location that is not affected by direct sunlight dump dust oil or water Z CAUTION The transmitter should be used in ambient temperature 20 to 70 C While installing piping during installation do not administer any strong shocks to the product such as thumping or dropping it Please maintain enough space around the product to allow for maintenance and adjustment If the wetted part reaches temperatures exceeding 70 C due to steam hot water etc please be sure to install a pipe siphon or similar device to keep it below 70 C Also when measuring low temperature fluids such as cold water condensation may form on the detecting sensor which can cause accidents Please employ preventive measures against condensation Please do not insert wires etc into the pressure feed port This may damage the diaphragm and prev
15. to inclination vibration or shock including during transportation exposed to chemicals chemicals storage area or gas exposed to direct sunlight or high temperature in a car etc 9 Operation Before powering on double check to make sure all wires have been correctly connected Also double check the voltage rating and amperage rating of the power supply and the internal resistance of the external adaptation equipment to be sure they are within the rated range of this product s load resistance Begin running properly after powering on a 5 minute warm up and zero point adjustment in stable condition Observe the following precautions while operating e Avoid the application of pressure ratings above those on this product s CAUTION faceplate Do not adjust the wiring while the device is powered on as this may damage the device and or cause an electric shock All wiring should be connected according to the wiring diagrams TY KH15 014A 10 14 10 Maintenance and adjustment 1 Maintenance This product will age at a rate proportional to its conditions of use Please conduct a routine inspection at least once every 6 months and recalibrate the device as necessary Also please recalibrate the device using a set method or recalibration mechanism The following is a routine inspection checklist for your reference and use lt Routine Inspection Checklist gt
16. ts can occur Please be sure to use a model that is appropriate for your specifications in a location which is appropriate for your usage environment and which has been correctly wired and installed 2 Outline This product is a waterproof miniature solid state pressure transmitter equipped with a semiconductor strain gauge as its pressure detection part The diaphragm material used for the sensor components is SUS316L which is highly corrosion resistant The standard outputs are 4 to 20mA DC 0 to 5V DC and 1 to 5V DC In addition it is designed to be accessible for zero and span adjustments by removing the screw on the top surface of the case 3 Model number configuration KH15 L O G R Wetted parts material Diaphragm SUS316L Model Fitting SUS316L Connector type External adjustment method Connecting size 2 G1 4B K NPT1 4 G3 8B L NPT3 8 G1 2B M NPT1 2 R1 8 R1 4 R3 8 R1 2 Oo ON DD E W 4 Specifications TY KH15 014A 3 14 Model number KH15 LOG Pressure sensor sealing type Welding type Pressure range 0 1 to 0 5 0 1 to 2MPa 0 to 0 5 0 to 35MPa Maximum allowable pressure 2 0 5 to 2MPa_ 1 5 times high for the pressure range 3 5 to 35MPa 1 2 times high for the pressure range Power source 24V DC 10 or 12V DC 10 15 V DC 10 Only power supply voltage can be selected Output type 4to20mADC_ Load resistance 500 2 max
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