Related Manuals for Nagano Keiki KJ55 Series
Summary of Contents for Nagano Keiki KJ55 Series
- Page 1 User Manual for KJ55 Intrinsically Safe Pressure Transmitter TY-KJ55-002A Rev.3...
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Page 2: For Proper And Safe Use
For Proper and Safe Use Thank you for purchasing the KJ55 intrinsically safe pressure transmitter. To use this product safely and properly, read this user manual carefully. This product is a marine pressure transmitter conforming to the IEC intrinsically safe standards, which can be used even in Zone 0 areas where explosive gas always exists. -
Page 3: Precautions For Handling Product
■ Precautions for Handling Product ! WARNING Do not give excessive load, vibration, and shock. Damage to the product and release of a measured object may be caused, which results in injury or damage to the surrounding environment. Do not apply pressure over the maximum allowable pressure. Damage to pressure elements may be caused, which results in injury or damage to the surrounding environment. - Page 4 Use the product within the operating temperature range. Otherwise, the product fails or is damaged, which causes injury or damage to the surrounding environment. *1 Install this product to avoid direct sunlight. Otherwise, the allowable intrinsically safe temperature of 60° is exceeded, resulting in degrading the intrinsically safe protective performance.
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Page 5: Table Of Contents
Table of Contents For Proper and Safe Use ............2 ■ Definition of Safety Terms ................2 ■ Description of Graphic Symbols ..............2 ■ Precautions for Handling Product ..............3 Table of Contents ..............5 1. Preface ................... 6 2. -
Page 6: Preface
1. Preface Check the specifications of the delivered model. An incorrect pressure range, power supply, or output causes accidents. Be sure to use the model appropriate for specifications in the place suited for your operating environment, and conduct secure wiring and installation. 2. -
Page 7: Specifications
3. Specifications ■ 3.1 General Specifications Item Description Measuring fluid Gas or liquid (which does not erode wetted materials) -0.1 to 0.4, 0.5, 1, 1.5, and 2 MPa Pressure range 0 to 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 5, 10, 15, 20, 25, 30, 35, and 50 MPa Maximum allowable 200% of pressure range... -
Page 8: Intrinsically Safe Specifications
■ 3.2 Intrinsically Safe Specifications 3.2.1 KJ55 Pressure Transmitter (Hazardous Area) Intrinsically safe product certified by Nippon Kaiji Kyokai (ClassNK) Type approval No. Type approval No.: 08T610 Exia II C T5 Temperature class Explosion-proof Gas group construction Type of explosion-proof construction according to technical standards (by NK) Allowable voltage of intrinsically safe circuit (Ui): 28 V Allowable current of intrinsically safe circuit (li): 93 mA... -
Page 9: Dimensions
4. Dimensions Model Thread size KJ55-83□ G3/8B KJ55-84□ G1/2B KJ55-85□ Rc1/4 2 x Ø 5.4 Mounting hole JIS 20F Gland 24 x 27.7 HEX. 2 x Ø 5.4 Mounting dimensions Mounting hole Mounting hole (elongated) <Figure 4-1> TY-KJ55-002A Rev.3... -
Page 10: Transportation And Unpacking
5. Transportation and Unpacking ■ 5.1 Precautions for Transportation Do not drop this product or give a shock to it as it is precisely machined. Otherwise, the product may become completely inoperable. Pay extra attention to transportation. ■ 5.2 Precautions for Unpacking Be careful not to handle the carton roughly when unpacking it. -
Page 11: Wiring And Connection
7. Wiring and Connection ■ 7.1 Transmission Cable (Applicable Transmission Cable) For the transmission cable used between KJ55 and the safety barrier, select a two-core shielded cable that satisfies the following conditions: (1) The sheath diameter must suit the KJ55 cable gland (JIS F 8801 20f), and the core wire cross section must suit the internal terminal block. -
Page 12: Wiring Diagram
■ 7.2 Wiring Diagram Install the intrinsically safe equipment (KJ55) in a hazardous area and the safety barrier (insulating barrier) and general equipment (power supply, receiving device) in a non-hazardous area as shown in the wiring diagram below. If you purchase an insulating barrier, Class A grounding defined in the intrinsically safe standards is not required. - Page 13 Terminal No. Device Equipment terminal of the barrier POWER (-) KJ55 POWER (+) Ground Output (-) Receiving device Output (+) Power supply (-) Power supply Power supply (+) <Table 7-3> (1) System configuration diagram Safety barrier MTL5541 (insulating barrier) Hazardous area Non-hazardous area...
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Page 14: Operation (Energization)
Pairing conditions for parameters Parameter for intrinsically safe Pairing condition Parameter for safety barrier equipment and wiring Input inductance of intrinsically Allowable inductance of ≤ safe equipment intrinsically safe circuit + Wiring inductance Input capacitance of intrinsically Allowable capacitance of ≤... -
Page 15: Storage
10. Storage ■ 10.1 Precautions for Storage Store this product in a place with less humidity and no vibration or dust. If you stack it up, make sure that the carton case does not deform or drop. 11. Maintenance ■ 11.1 Inspection (Output Current Check) You can measure the output current between the POWER+ terminal and CHECK terminal on the terminal block inside the case without unwiring. -
Page 16: Adjustment
CAUTION Avoid electrostatic charge. To clean the appearance of the product, use a water-soaked soft cloth. Do not use thinner and benzine that cause degradation or failures. ■ 11.3 Adjustment Remove the instrument cover by loosening the two screws. •... -
Page 17: Product Warranty And Export Administration Regulations
12. Product Warranty and Export Administration Regulations ■ 12.1 Product Warranty If a delivered product within the warranty period (for one year since the date of delivery) is considered as an incompatible one due to faults of our design or manufacturing, we repair the product or replace it with a compatible one for free. - Page 18 For other questions, contact our sales office nearest you, or call the number below. User Manual for KJ55 Intrinsically Safe Pressure Transmitter April 2019, 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: +81-3-3776-5447...
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