Nagano Keiki KH15 3 Series User Manual Download | Manualshive

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10

Y-KH15-007A Rev.3

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5.2 KH15-K

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(large terminal box)

< Figure 5-2 >

22 X 25.4 HEX.

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Summary of Contents for KH15 3 Series

Page 1: ...1 TY KH15 007A Rev 2 User Manual for KH15 Waterproof Pressure Transmitter KH15 J K 7 3 ...

Page 2: ...zed based on the following definition Indicates the risk that users may suffer from damage including death or serious injury and extremely high urgency at the time of occurrence of risk Indicates the risk that users may suffer from damage including death or serious injury Indicates the risk that users may suffer from minor injury and the risk that only property damage may be caused Description of ...

Page 3: ... human life directly or cause harm to human bodies do not use the product Do not modify the product Disassembly or modification of the product or modification to add new functions may cause harm to human bodies Use the product within the operating temperature range Otherwise the product fails or is damaged which causes injury or damage to the surrounding environment Conduct wiring correctly accord...

Page 4: ... Product Specifications 8 5 DIMENSIONS 9 5 1 KH15 J small terminal box 9 5 2 KH15 K large terminal box 10 6 TRANSPORTATION AND UNPACKING 11 6 1 Precautions for Transportation 11 6 2 Precautions for Unpacking 11 7 INSTALLATION AND REMOVAL 11 7 1 Installation 11 7 2 Precautions for Possible Water Sprinkling 12 8 WIRING AND CONNECTION 14 8 1 Wiring 14 8 2 Waterproofness of Wire Inlet 16 8 3 Wiring Di...

Page 5: ...11 1 Precautions for Storage 19 12 MAINTENANCE 19 12 1 Periodical Inspection 19 12 2 Adjustment 20 13 PRODUCT WARRANTY EXPORT ADMINISTRATION REGULATIONS 22 13 1 Product Warranty 22 13 2 Export Administration Regulations 22 14 OTHERS 22 ...

Page 6: ...tandard output is 4 to 20 mA DC 0 to 5 V DC and 1 to 5 V DC It has a terminal box provided with a circuit which allows you to adjust a zero point and span by removing the lid of the box 2 2 Operating Principle With a pressure receiving part used as a diaphragm the product converts pressure into strain and detects the amount of strain with the semiconductor strain gauge The detection circuit is a f...

Page 7: ...5 Seal system 3 O ring Type 4 All welded SUS630 17 4PH J Small terminal box 6 All welded Co Ni alloy Internal access to adjustment K Large terminal box Internal access to adjustment Thread 2 G1 4B K NPT1 4 3 G3 8B L NPT3 8 4 G1 2B M NPT1 2 6 R1 8 7 R1 4 8 R3 8 9 R1 2 Figure 2 2 Amplifier circuit Pressure detecting section Regulated circuit Output circuit CHECK CH ...

Page 8: ...0 5 F S However the pressure range is 0 5 to 50 MPa 1 0 F S Operating temp range 20 to 70 C non freezing non condensing 4 Storage temp range 30 to 80 C non freezing non condensing Temperature characteristics 0 025 F S C with 0 25 F S accuracy both zero span 0 05 F S C with 0 5 F S accuracy both zero span 0 1 F S C with 1 0 F S accuracy both zero span Responsiveness 1 ms or less Wetted materials Di...

Page 9: ...o 5V DC output 4 It will be 0 to 70 C for the pressure range of 0 1 MPa or less For the wetted part exceeding a temperature of 70 C such as steam or hot water be sure to install a pipe siphon or similar device to keep it below 70 C Also when measuring low temperature fluid such as cold water please employ preventive measures against condensation 5 IP67 waterproof case does not cover the waterproof...

Page 10: ...10 Y KH15 007A Rev 3 5 2 KH15 K large terminal box Figure 5 2 22 X 25 4 HEX ...

Page 11: ...e sure to use the hex parts of the threads for installation of the product 2 Do not install the product in the pressure line with piping filled with liquid As liquid is incompressible tightening the threads produces high pressure which causes equipment to fail When installing the transmitter to the existing pressure line or replacing it with a new one remove liquid on the piping connection side le...

Page 12: ... to ambient temperature of the main unit Wind the tape around the tapered male pipe thread to prevent leakage When a straight pipe thread is used check the packing and seal surface for dust contamination or flaws to prevent leakage If there is a risk of surge pressure use the throttle fitting and dampener 7 2 Precautions for Possible Water Sprinkling Install the product so that the gland part cabl...

Page 13: ...is ensured by using a cable conforming to the gland Waterproof performance is also affected by how you tighten the terminal box lid and install a wire inlet Be sure to check the waterproof performance when using commercially available glands or cable conduits instead of the supplied gland parts Waterproof performance equivalent to IPX7 is guaranteed only when the components are properly assembled ...

Page 14: ...he cable in accordance with Figure 8 1 and 8 2 below for each model number KH15 J small terminal box Strip 60 mm of the cable sheath and 7 to 9 mm of the core coat Provide shielding at the bottom end of the sheath Cable that fits the terminal block is AWG24 to 12 0 2 to 3 3 mm2 KH15 K large terminal box Strip 80 mm of the cable sheath and then strip the core coat to fit the length of the M3 crimp ...

Page 15: ...e Atmospheric pressure is introduced into an instrument via the cable If the cable is pressed due to a clamp bush or extreme bend in the middle of the cable or if the cable is long the exhaustion of pressure takes time In this case an output error may be caused because of pressure within the case or a change in temperature Conduct wiring not to seal the cable end with tape or adhesive Avoid using ...

Page 16: ...onent during wire connection 6 Seal the terminal box by tightening the box lid Tighten the terminal box lid securely to prevent the intrusion of water 8 2 Waterproofness of Wire Inlet Waterproof performance of this product is secured by using the cable with a suitable outer diameter according to the gland size Pay enough attention to those actions affecting waterproof performance such as the tight...

Page 17: ...m 4 to 20 mA DC 3 wire system 1 to 5V DC 0 to 5V DC KH15 Ammeter to monitor output CH Power supply 4 to 20 mA DC 24V 0V Load resistance Figure 8 5 KH15 Figure 8 6 POWER OUTPUT COM Power supply 24V 0V Terminal block AWG24 to 12 2 wire system 3 wire system Terminal block AWG24 to 12 Terminal block M3 Terminal block M3 Figure 8 4 ...

Page 18: ...shown on the product label Do not conduct wiring in the power on state Failures or electric shocks may be caused in the product Follow the wiring diagram to install the cables Before installation check the rated value specified for this product to determine the rated value of the power supply to use Internal resistance of equipment to be connected should be within the rated load resistance of the ...

Page 19: ...lation sunlight dust salt sulfur containing air or other factors Locations subject to inclination vibration or shock including those during transportation Locations where chemicals are stored or gases are generated Locations exposed to direct sunlight or in high temperature cars 12 MAINTENANCE 12 1 Periodical Inspection A periodical maintenance once a half year will be needed due to possible aging...

Page 20: ... on the plate are trimmers for zero and span adjustment respectively Do not perform an adjustment when the surface of the product is wet Moisture getting inside the product will cause a failure Never cause short circuits with a driver be sure to use a resin or ceramic driver After powering on wait at least 5 minutes for warm up in an energizing state before performing an adjustment Care should be ...

Page 21: ...V DC output in a vented state V 5V upper limit pressure range MPa 0 1 MPa x 0 1 0V Example 0 5 MPa compound range 0 833 V 1 0 MPa compound range 0 454 V Ensure that the pressure is released to the atmosphere no pressure and adjust the output under this condition to the above calculated value Be careful not to turn the span trimmer S during zeroing 12 2 2 Span adjustment Ask us for span adjustment ...

Page 22: ... is not observed Non conformance is caused by deterioration due to use natural disaster fire or other force majeure events and Any secondary damage caused by nonconforming product including the above Please note that regardless of whether the customer recognizes the handling deficiency any obvious evidence of deformation wear or burnout found on parts will be excluded from the warranty scope and b...

Page 23: ...23 Y KH15 007A Rev 3 MEMO ...

Page 24: ...ormation described in this User Manual Copying or reprinting without permission is prohibited For other questions contact our sales office nearest you or call the number below User Manual for KH15 Waterproof Pressure Transmitter June 2020 Rev 3 Website http www naganokeiki co jp lng eng NAGANO KEIKI CO LTD Head office 1 30 4 Higashi magome Ota ku Tokyo 143 8544 Phone 81 3 3776 5328 Fax 81 3 3776 5...

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