取扱説明書 - エー・アンド・デイ
Contents
1. 2 d Pe E rss ee 98kN 196kN 294kN 392kN 490kN SETS IB e eee re 2mV V 0 1 NRI GUB cathe 200 R C 0 02 TEIN FR 1 R O 20T 60 C 12V e KEN 15V A JW f E S cai 4100 300 HET Sind 3550 350 SEU AES D voted dde bonia 5000M Q DCS0V 0 009 R O 10 Typ IHE DAC QA EN 0 012 Load 10 Typ Te e tense 8 10m TP67 3 LC2224 LC2224N 3 1 50055 FE 42. 4 LC 2224 LC2224 Z lt 1 ET M16 2 pt n
3. 4 90 2 0 5 e 5 6 LOKN cm 20kN cm dB 5
4. 43 1 I2 U 2 3750 2 O LOC eU NAZAT 1 500 3 2 1 100
5. X PMA FIX SYSTEM DIN Pe Pg Fil Fe 3 5 3 6
6. 6 LC 2224N LC 2224N T010 T020 TO30 T040 32 5 0 1 44 5 0 1 2 7 1 7 1 e e 5 2 XU 050 RK P 580 6 35 VVV OTE S t BOB amp IEHRC38 43E LT B gt 510 60 8 SHBOKE MEEUZLIES xv X 6 1 7 7 1 LC2224T010 020 K 17 1 7 2 LC2224NT010 020K 7 3 LC2224T030 040 K A 27 017 3 7 4 LC2224T050 K Dt A 27 317 4 7 5 LC2224NT030 040 050K ale Fa J Ikloombon oP als pri LC2224NT030K L
7. 23 3 3 Max Smm 2 3mm 3 2 3 4 AD 4379 AD 4382 6 162 SttERADp4380 ad 3 3 PMA FIX SYSTEM
8. 98 kN 196 kN 245 kN 294 kN 392 490 Rated output 2mV V 0 1 eM 2 5mV V10 196 for LC2224NT025K only Maximum safe overload 200 R C Combined error 0 02 R O Zero Dalane8 sicui pois cou doce need 1 R O Compensated temperature range 20 C to 60 C Recommended excitation voltage 12V Maximum excitation voltage 15V Input terminal resistance 4102 300 Output terminal resistance 3550 3 50 Insulation resistance Greater than 5000MQ at DC50V Temperature effect Zero 0 009 R O 10 C Temperature effect SPAN 0 012 Load 10 C Cable diameter length 28 10 m Protection against water and dust IP67 or the equivalent 14 3 NOTES ON INSTALLATION The following applies to both LC 2224 and LC 2224N series 3 1 Base and beam Iron plate to reinforce Beam Must be strong enough to withstand the load applied Shunt cable To protect against lightening Fig 3 1 Install the load cell in such a way that the surface holding the stop pin comes below Do not install the load cell upside down Design the base to hold the load cell and the beam to hold the scale strong enough to withstand the load applied
9. Make the base plate flat and horizontal The following is recommended The base plates are parallel within 3 mm Level of a single base plate is within 1 500 e Ensure a complete contact between the mount fixture and base plate and between the mount fixture and platform Allow no clearance between them 3 2 Load cell protection e When apit type weighing system is constructed provide a drain system so that water is not held in the pit Submerging the load cell will cause the load cell to malfunction The following is recommended Provide the pit bottom with a slope of no more than 1 100 Provide a drain pipe reservoir or pump When a pitless weighing system is constructed take measures to protect the load cell from direct sunlight rain and splash 245 3 3 Stoppers Attach stoppers to the platform to prevent excessive motion Allow a maximum clearance of 5 mm as shown below The recommended clearance is 2 3 mm 2 5 mm Fig 3 2 3 4 Load cell cable connection and piping When severalload cells are used simultaneously use ofa summing box is recommended Two types of summing boxes are available from A amp D AD 4379 and AD 4382 To connect the summing box to the weighing indicator use a 6 wire shielded cable KO 162 to reduce weighing error To extend a load cell cable use a junction box AD 4380 available from A amp D Extending a cable allows easy operation and maintenance Attach the
10. M s ar 45189 117 205 185 10 30 Fig 7 5 22
11. cable piping and summing box on the platform Summing box Steel conduit Arrange in such a way that it will not affect the weighing accuracy Fig 3 3 16 If the load cell cable might be damaged protect it with a steel conduit or flexible tubing The following flexible tubing is recommended PMA FIX SYSTEM Made in Switzerland Note FIX SYSTEM uses DIN standard Pg screws commer cially available Pg adapter is required for connection Do not cut a load cell cable even if it is too long Especially use care when several load cells are used differences in cable length may cause an error Allow some slack in the load cell cable when connecting 3 5 Load cell cable color code Rei Exin Excitation Signal Signal Yellow Shield 3 6 Others When a welding operation is performed with the load cell attached ground the welder at the area where the welding is to be done Provide a bypass circuit such as a shunt cable near the load cell to protect the load cell against lightening Apply grease on the upper and lower spherical surfaces of the load cell and on the mount fixtures at the area where the load cell comes into contact Do not disassemble a load cell Do not expose a load cell to shock Do not carry a load cell by the cable Do not apply voltage exceeding the specified maximum excitation voltage sys 4 USING LC 2224 SERIES MOUNT FIXTURE To inst
12. C2224NT040K 43 ids 105 186 170 8 30 110 130 68 78 44 43 2 5 12 LC2224NT050K 49 45 89 117 205 185 10 30 124 31 7089 50 49 2 6 6 12 317 5 10 LC2224 series compression load cells LC2224T010 K LC2224T020 K LC2224T030 K LC2224T040 K LC2224T050 K 2224 010 2224 020 2224 025 LC2224NT030K LC2224NT040K LC2224NT050K 2001 A amp D COMPANY LTD ALL RIGHTS RESERVED No part of this publication may be reproduced transmitted transcribed or translated into any language in any form by any means without the written permission of A amp D Company Ltd The contents of this manual and the specifications of the instrument covered by this manual are subject to change for improvement without notice 13 1 INTRODUCTION LC 2224 series are high performance double convex compression load cells and are optimum for truck and hopper scale weighing The rated capacity ranges from 98 kN to 490 kN They are compact and lightweight allowing easy installation and maintenance The load cell is protected by a rubber cover and may be used even in harsh environments A load cell is a high precision and good response device Thus much consideration is required about where to install it and how to construct it To make the most of the load cell read the manual thoroughly and install it properly as described 2 SPECIFICATIONS Rated capacities
13. LC 2224 LC 2224 Series Compression Load Cells Instruction Manual WM PD4000356A LC2224 LC2224T010 K LC2224T020 K LC2224T030 K LC2224T040 K LC2224T050 K LC2224NT010K LC2224NT020K LC2224NT030K LC2224NT040K LC2224NT050K 4 3 2001 1 LC 2224 98kN 490kN
14. all an LC 2224 series load cell using the accessory mount fixtures do as follows 1 Attach one mount fixture to the base plate and the other mount fixture to the platform Use M16 bolts and spring washers to fasten Here fasten the mount fixtures temporarily 2 Insert the load cell into the mount fixture on the base making sure to align the load cell stop pin with the mount fixture stop cutout This is important to protect the load cell against damage or from falling over Mount fixture stop cutout Load cell stop pin At four positions Fig 4 1 3 Place the platform on the load cell carefully Verify that the load cell is inserted into the mount fixture securely 4 Verify that the load cell is perpendicular by measuring at least at two points 90 degrees apart The inclined angle of the load cell must be less than 0 5 degree 5 If the load cell is inclined more than 0 5 degree adjust the position of the mount fixture to ensure a perpendicularity 6 After all load cells to be used are verified to be perpendicular secure the mount fixtures with the bolts The recommended tightening torque is as follows When regular bolts are used 10 When high strength bolts are used 20 kN cm 18 5 DAILY CHECK Check the following daily as necessary Is there an appropriate clearance given to the stoppers as described in 3 3 Make sure that the clearance is not blocked by a foreign substance such as mu
15. d When a pit type weighing system is used make sure that water has not accumulated in the pit Are the load cell and mount fixture clean Does the load cell cable have some slack Is there any current leakage in the scale or others 6 MOUNT FIXTURE FOR LC 2224N SERIES Mount fixtures are not provided for the LC 2224N series Refer to the following when designing your own mount fixtures T010 T020 T025 T030 T040 032 5 0 1 Depth roughness of the surface which touches the load cell must be 6 3S equivalent to 59577 The hardness of the load sensing part must be HRC38 43 The load sensing part must be thick enough to withstand the load applied Depth 15 0 3 7 EXTERNAL DIMENSIONS 7 1 LC2224T010 020 K The upper and lower plates are same in size JA Fp III VI H The upper and lower bearing plates are inserted into the base plates Fig 7 1 7 2 LC2224NT010 020 025K 299 7 3 LC2224T030 040 K The upper and lower bearing plates are inserted into the base plates Fig 7 3 7 4 LC2224T050 K 2 J M The upper and lower bearing plates inserted into the base plates Fig 7 4 21 7 5 LC2224NT030 040 050K Load cell Load cell model Load cell model BIC LC2224NT030K aT 4313 LC2224NT050K 49 E FIG oo
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