![\"Luzhou](\"https:\/\/szlmi.com\/wp-content\/uploads\/2026\/11\/01-luzhou-station-arrival.webp\")
![\"140-ton](\"https:\/\/szlmi.com\/wp-content\/uploads\/2026\/11\/02-hero-140t-crawler-gantry-handler.webp\")
2. Por qu\u00e9 una manipuladora de materiales de 25 m ejerce m\u00e1s presi\u00f3n sobre un indicador de momento de carga que una gr\u00faa m\u00f3vil<\/h2>\n
Una gr\u00faa sobre cami\u00f3n es una m\u00e1quina f\u00e1cil de equipar: una articulaci\u00f3n, una pluma telesc\u00f3pica, un cable con un multiplicador conocido y una c\u00e9lula de carga en el extremo. Una pala de agarre no te ofrece nada de eso.<\/p>\n
El radio no es una funci\u00f3n de un \u00e1ngulo.<\/strong>\u00a0La pluma es de tipo \u00abcuello de cisne\u00bb con una articulaci\u00f3n adicional, y la palanca gira sobre su propia bisagra. El punto exacto en el que cuelga la pinza depende conjuntamente del \u00e1ngulo de la pluma, el \u00e1ngulo de la palanca y la posici\u00f3n de la pinza. Un grado de \u00e1ngulo de la pluma a 25 m corresponde a un radio de 25 \u00d7 \u03c0 \/ 180 \u2248 0,44 m, y 0,44 m con una carga nominal de 10,9 t supone aproximadamente un momento de 4,8 t\u00b7m. Si se calcula esto con dos \u00e1ngulos, las lecturas de alcance se desv\u00edan en metros.<\/p>\n La m\u00e1quina nunca est\u00e1 nivelada.<\/strong>\u00a0Una gr\u00faa p\u00f3rtico sobre orugas se apoya sobre cualquier tipo de suelo del patio \u2014pavimento, grava, el borde compactado de un mont\u00f3n de material\u2014 y las dos orugas nunca soportan la misma carga. Es habitual que se produzca un balanceo de entre uno y dos grados, y este var\u00eda a medida que la m\u00e1quina avanza y el suelo que hay debajo soporta el peso. El elevador empeora la situaci\u00f3n en lugar de mejorarla: con el pivote a 10 m de altura, un grado de balanceo lo desplaza 0,17 m lateralmente y aproximadamente lo mismo en altura, y ambas cifras se incorporan directamente a la conversi\u00f3n de radio y altura. Un sistema que asume que el terreno est\u00e1 nivelado transmite ese error a cada lectura del desplazamiento. De ah\u00ed la importancia del sensor de actitud de la carrocer\u00eda: medir el balanceo y la inclinaci\u00f3n y corregirlos, en lugar de dar por sentado que todo est\u00e1 nivelado.<\/p>\n No hay cuerda.<\/strong>\u00a0La carga debe provenir de la presi\u00f3n del cilindro, lo que implica dos c\u00e1maras, la fricci\u00f3n de las juntas y un circuito repleto de v\u00e1lvulas. La presi\u00f3n no es un indicador de la carga hasta que se calibra en funci\u00f3n del radio, y var\u00eda con la temperatura del aceite; por eso, este tipo de indicador de momento de carga necesita m\u00e1s de un \u00fanico punto de calibraci\u00f3n a lo largo del rango de trabajo.<\/p>\n El sistema est\u00e1 dise\u00f1ado de acuerdo con la norma ISO 10245-1 para dispositivos de limitaci\u00f3n e indicaci\u00f3n, la norma GB\/T 12602 para la protecci\u00f3n contra sobrecargas en aparatos de elevaci\u00f3n y la norma EN 13000 en los pa\u00edses a los que se exporta la m\u00e1quina. Dichas normas establecen lo que el dispositivo debe hacer \u2014avertir y, cuando sea necesario, detener\u2014. No se encargan de que los valores sean correctos. De eso se encargan el estudio y la calibraci\u00f3n; por eso, un indicador de momento de carga requiere un d\u00eda de mediciones antes de que nadie pueda acceder a la pantalla de configuraci\u00f3n.<\/p>\n El indicador de momento de carga de esta m\u00e1quina es de la generaci\u00f3n actual, y el cambio va m\u00e1s all\u00e1 de una simple pantalla nueva. La generaci\u00f3n anterior consist\u00eda en una placa de microcontrolador con firmware fijo: la pantalla mostraba el momento y el \u00e1ngulo, los par\u00e1metros se programaban de f\u00e1brica y cualquier cambio supon\u00eda crear una nueva versi\u00f3n del firmware. El terminal LMI-8000 de esta cabina es un equipo con Linux. La calibraci\u00f3n se realiza a trav\u00e9s de una pantalla que se va completando paso a paso con el operador; el idioma y las unidades son ajustes configurables en lugar de versiones fijas, y los registros son archivos que se pueden copiar fuera de la cabina.<\/p>\n La separaci\u00f3n entre las dos cajas es deliberada. Las decisiones de seguridad \u2014umbrales de sobrecarga, accionamiento de rel\u00e9s, la decisi\u00f3n de inhibir un movimiento\u2014 se mantienen en la unidad de adquisici\u00f3n SZ-E01, que es un controlador determinista en tiempo real sobre CANopen. El terminal Linux se encarga de la visualizaci\u00f3n, el registro y la interfaz de usuario. Linux aporta una interfaz de usuario usable, capacidad de almacenamiento y una pila de red; no garantiza un tiempo de respuesta limitado tras un arranque en fr\u00edo. Mantener la desconexi\u00f3n en la unidad de adquisici\u00f3n significa que el terminal puede reiniciarse, sustituirse o actualizarse sin que la m\u00e1quina pierda la protecci\u00f3n contra sobrecargas ni siquiera durante un ciclo.<\/p>\n La placa de caracter\u00edsticas de la unidad, fotografiada en la propia m\u00e1quina, es la parte que merece la pena citar, ya que es la \u00fanica especificaci\u00f3n de esta p\u00e1gina que procede directamente del metal y no de una ficha t\u00e9cnica.<\/p>\n Two error figures on this load moment indicator have to be kept apart. The transmitter is 0.5 % F.S., which on a 400 bar range is 2 bar. The system figure is \u00b13 %, which at a rated 10.9 t is \u00b10.33 t. The first describes one channel\u2019s linearity; the second includes geometry, calibration and hydraulic friction. Quote the second to a customer, never the first \u2014 and never let a tender document mix them.<\/p>\n Five channels make up this material handler load moment indicator, and each one answers a different question: where the platform is, where the boom is, where the stick is, and how hard the cylinder is pushing from each side. Get any one of them wrong and the others cannot compensate.<\/p>\n Three angle sensors on this load moment indicator, all from the SZ-A01 family: 9\u201336 VDC, 0.1\u00b0 absolute accuracy, 0.05\u00b0 resolution, 0.02 s response, IP67. Each one is a gravity reference, so each one has to be mounted to a surface whose relationship with the machine\u2019s geometry is known and stable.<\/p>\n Body (SZ-A01BD).<\/strong>\u00a0A machined pad on the slewing platform, aligned to the machine\u2019s longitudinal and transverse axes. This channel exists to serve the second problem in section 2: it measures how far the gantry is off level, and the controller uses that to correct radius and height. On a crawler machine that walks onto unprepared ground and gets packed up under the tracks before a lift, it is not a nicety.<\/p>\n Boom (SZ-A01BM).<\/strong>\u00a0On the boom web, a short distance above the root hinge, on a pad machined after the boom was welded. This one is a gravity reference, so what it needs is not a mechanism but a surface whose angle to the boom centreline is known and does not change. A welded boom web is not that surface: across the footprint of the sensor it is out of flat by more than the 0.1\u00b0 the sensor is specified to. So the pad is machined, the sensor is bolted down to it, and the cable leaves downward into a drip loop before it is clipped along the web at the same pitch as the hose clamps.<\/p>\n Stick (SZ-A01AM).<\/strong>\u00a0Same arrangement at the stick root. This is the channel a two-angle crane load moment indicator does not have, and on this machine it is not optional: with a gooseneck boom and a stick that swings on its own hinge, boom angle alone cannot tell the controller where the grab is.<\/p>\n The pressure side of a hydraulic load moment indicator is where its accuracy is actually won or lost. Two SZ-P201S transmitters, 0\u2013400 bar, 4\u201320 mA, on the boom cylinder circuit: P1 on the piston side, P2 on the rod side. Neither is taken by cutting a hose. P1 comes off a machined adaptor block bolted at the cylinder head end, which puts the transmitter on a flat face at the piston-side gallery and keeps it clear of the hose bundle; P2 comes off a test port on the valve block, where the rod-side gallery is already brought out. Fewer joints in a 35 MPa circuit, and both points isolate for service without draining anything.<\/p>\n Two channels rather than one, because the boom cylinder is differential. Piston-side pressure alone gives force in one direction only; with the rod-side channel the controller can subtract the annulus area and the return-line back pressure. A grab machine spends half its cycle holding a load at reach and half swinging empty, and without that subtraction the empty swing reads as a few hundred kilos of load that is not there.<\/p>\n Practical note: P2 sits at low pressure most of the time, so it is the channel that suffers first when there is air in the line. Bleed both, then zero. A bubble in the rod-side line shows up as a zero that drifts for the first hour of every shift, and operators learn to distrust the display long before anyone thinks to bleed it.<\/p>\n The SZ-E01 \u2014 the box that does the arithmetic behind the load moment indicator \u2014 sits in a die-cast enclosure on the superstructure side wall, high up under the handrail, away from the spray path of the return filter. Below it is the machine\u2019s own cable box, and to one side the two red valve blocks of the boom circuit.<\/p>\n Mounting rules we do not bend at this height: glands facing down, enclosure on standoffs so water runs behind it instead of pooling at the gasket, stainless fasteners with threadlocker, and cable entry on the underside even when the top is easier to reach from the lift.<\/p>\n Both the sensors and the display are on the rotating half of the machine, so the run never crosses the rotary joint \u2014 a real advantage over a portal crane with the cab on the fixed side. The hard part is the boom root: two hinges\u2019 worth of relative motion inside half a metre, next to a bundle of hoses that flex every cycle.<\/p>\n Split corrugated conduit on the existing clamps, a service loop at each hinge, a drip loop before every gland, and Deutsch-style connectors at the boom root. That last item is not about reliability. It is about the day the machine goes on a lowbed: the boom comes off, and nobody should be cutting a sensor cable to make that happen.<\/p>\n The load moment indicator terminal, an LMI-8000, sits on the right-hand post, in the operator\u2019s sight line when the grab is at reach. The F1\u2013F3 keys under the screen are physical, which is the right call: this operator wears gloves all day, and a capacitive panel through a work glove is a bad interface.<\/p>\n What the screen was showing at that moment: the CAN link synchronised with the acquisition unit, boom at 49.8\u00b0, and the calibration page with two records \u2014 empty and 18.00 t \u2014 both flagged as calibrated. Night mode is a single button on the status bar; it drops the panel to a dark palette and dims the backlight, which matters on a night shift with the cab lights off and a glare-free windscreen.<\/p>\n The network field is empty on this machine. The terminal supports it; the yard did not ask for remote access, and we do not switch on a network stack that nobody is going to administer. If they want log uploads later, the terminal already has the interface \u2014 that is a cab job, not a machine job.<\/p>\n Installation is the easy half of a load moment indicator job. On a machine this size the geometry is where the error hides, so before anyone touched the calibration page we measured.<\/p>\n Check 1 \u2014 radius.<\/strong>\u00a0Tape from the slew centre to the grab pin at three boom angles, compared against the geometry model. This is the check that catches a sensor bracket fitted against the wrong datum face, before it turns into a calibration offset nobody can explain three months later.<\/p>\n Check 2 \u2014 zero.<\/strong>\u00a0Grab empty, machine levelled on packers under the tracks, boom at mid-range, both pressure channels bled and then zeroed. Zeroing with the grab resting on the ground is the classic mistake: you zero in the weight of the grab that the ground is carrying, and the machine carries a constant offset for the rest of its life.<\/p>\n Check 3 \u2014 loaded point.<\/strong>\u00a0One known load of 18.00 t, taken at three radii. That is the second calibration record on the screen in Fig. 12. Two points \u2014 empty and one known load \u2014 fix the gain. The third radius is what tells you whether the stick channel is doing its job or just adding noise.<\/p>\n Then the part that does not appear in any acceptance document: half an hour with the operator. What the alarm means, what a bypass does and does not allow, and how to tell a real overload from a sensor fault. On a grab machine the operator is the only person who looks at this display all day. If he does not trust it, he will ignore it \u2014 and an ignored load moment indicator is worse than no indicator, because it puts a number on a decision that used to be made with judgement.<\/p>\n 1. Water follows cable, not gravity.<\/strong>\u00a0It rained for two of the three days. Every photograph in this report has water on the paint. The three failures that follow rain on a machine like this are a gland facing up, a drip loop that is actually a U-trap, and a connector boot that was pushed on but not locked. All three are invisible at commissioning and all three show up as an intermittent angle channel six months later.<\/p>\n 2. Air in the rod-side line.<\/strong>\u00a0P2 is the channel that gets forgotten, because it reads near zero most of the day and nobody notices it drifting. Bleed it at commissioning, bleed it again after the first week of work, and note in the handover that a zero which walks is air before it is a failed sensor.<\/p>\n 3. The clock and the calibration file.<\/strong>\u00a0The screen in Fig. 12 reads 2021-09-06 22:44:36 \u2014 the factory default real-time clock, not the day of the job \u2014 and both calibration records carry that same date. It is harmless on the day. A year later, when someone is trying to work out which sensor was replaced and when, a file in which every event happened on the same September evening is worth nothing. Set the clock at commissioning, export the calibration file, and file it with the machine\u2019s records. On a Linux terminal that export is a USB stick and thirty seconds; on the old fixed-firmware display it was a service laptop and a phone call.<\/p>\n The delivered material handler load moment indicator consists of three angle sensors (body, boom, stick), two pressure transmitters, one SZ-E01 acquisition unit, one LMI-8000 terminal, the harness with hinge service loops and Deutsch connectors at the boom root, mounting brackets, the drawing set (mounting positions and wiring), the calibration record, a spare connector and gland kit, and half an hour of operator briefing.<\/p>\n Three relay outputs, K1\u2013K3, are available on the acquisition unit of this load moment indicator for motion cut-off, and the harness for it is part of the standard build. Whether to enable cut-off on a grab machine is the customer\u2019s call, not ours: some yards want the boom to slow at the threshold, others want it to stop, and a few want alarm only during the first months of operation while operators get used to the display. What the system must not do is decide that on the customer\u2019s behalf.<\/p>\n What a load moment indicator means in the yard, in plain terms: the operator gets a load and radius reading before the grab leaves the pile instead of after the machine feels light on one side; the yard gets a per-cycle log it can reconcile against inbound and outbound tonnage; and a machine going out to a new site carries its calibration record with it instead of a technician\u2019s memory.<\/p>\n Can we invoice off this load moment indicator instead of a weighbridge?<\/strong>\u00a0No. It is a safety device with a \u00b13 % system figure; on a 10.9 t rated load that is \u00b10.33 t. A trade weighbridge is an order of magnitude tighter and legally verified. Use this to prevent overloads and to log trends, and invoice on a certified scale.<\/p>\n Why three angle sensors when cranes use two?<\/strong>\u00a0Because the boom is a gooseneck and the stick swings on its own hinge. Two angles cannot resolve where the grab is at 25 m. The third channel is what makes the radius reading a measurement rather than an estimate.<\/p>\n Does moving the display to Linux weaken the safety function?<\/strong>\u00a0Not if the safety logic stays in the real-time acquisition unit, which is how this load moment indicator is built. The terminal displays, logs and takes input. The trip decision is made in the SZ-E01 and driven out through its relays.<\/p>\n How long does installation take on a machine this size?<\/strong>\u00a0Two working days is the typical figure for the mechanical and electrical work, plus calibration; on this machine the high-reach mounting set the schedule, not the wiring. Machines with the cab on the fixed side and a slip ring in the path take longer.<\/p>\n Can we keep an older machine and only change the display?<\/strong>\u00a0Usually yes, if the acquisition unit\u2019s CANopen protocol matches the terminal\u2019s. But recalibrate anyway. A new terminal running an old calibration file is the most common way to end up with a number that looks right and is not.<\/p>\n For a quotation that is not guesswork we need six numbers: rated capacity, boom pivot height, maximum reach, boom and stick cylinder bore and rod diameter, relief pressure, and whether the machine is for protection only or also for internal weighing. With those, a configuration and a mounting sketch come back within one working day.<\/p>\n Send the machine data \u2192<\/a><\/p>\n<\/div>\n About this report.<\/strong>\u00a0Written by the SeeZol field engineering team from site records and photographs taken at the Sichuan Bangli Heavy Machinery works, Luzhou, 26\u201328 October 2026. System design of this load moment indicator references ISO 10245-1, GB\/T 12602 and EN 13000. All figures in Table 1 were read off the unit nameplate or the terminal screen on site; component data in Table 2 comes from SeeZol product documentation.<\/p>\n Lecturas relacionadas:<\/strong>\u00a0the 300-ton port grab installation at Huanghai Machinery<\/a>\u00a0\u00b7\u00a0how to choose a load moment indicator in five steps<\/a>\u00a0\u00b7\u00a0oil pressure sensor installation guide<\/a>\u00a0\u00b7\u00a0material handler load indicator product page<\/a>\u00a0\u00b7\u00a0LMI selection by machine type<\/a><\/p>\n<\/div>","protected":false},"excerpt":{"rendered":" Five sensors, a 10 m boom pivot and 25 m of reach. A field report from Sichuan Bangli Heavy Machinery on fitting a Linux-based load moment indicator to a 140-ton shell-grab handler \u2014 mounting points, harness, two-point calibration, and the three details that decide whether it still reads true in a year.<\/p>","protected":false},"author":1,"featured_media":8767,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[61],"tags":[160,278,277],"class_list":["post-8753","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-load-moment-indicator","tag-load-moment-indicator","tag-sz-em02","tag-sz-p201s"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/szlmi.com\/es\/wp-json\/wp\/v2\/posts\/8753","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/szlmi.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/szlmi.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/szlmi.com\/es\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/szlmi.com\/es\/wp-json\/wp\/v2\/comments?post=8753"}],"version-history":[{"count":1,"href":"https:\/\/szlmi.com\/es\/wp-json\/wp\/v2\/posts\/8753\/revisions"}],"predecessor-version":[{"id":8768,"href":"https:\/\/szlmi.com\/es\/wp-json\/wp\/v2\/posts\/8753\/revisions\/8768"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/szlmi.com\/es\/wp-json\/wp\/v2\/media\/8767"}],"wp:attachment":[{"href":"https:\/\/szlmi.com\/es\/wp-json\/wp\/v2\/media?parent=8753"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/szlmi.com\/es\/wp-json\/wp\/v2\/categories?post=8753"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/szlmi.com\/es\/wp-json\/wp\/v2\/tags?post=8753"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}3. Lo que hemos instalado: un terminal indicador de momento de carga con Linux y su cadena de sensores<\/h2>\n
![\"Material](\"https:\/\/szlmi.com\/wp-content\/uploads\/2026\/11\/03-standard-component-set.webp\")
![\"SZ-E01](\"https:\/\/szlmi.com\/wp-content\/uploads\/2026\/11\/04-nameplate-sz-e01-dc24-36v-ip67-canopen.webp\")
\n
\n \nArt\u00edculo<\/th>\n Valor<\/th>\n Fuente<\/th>\n<\/tr>\n<\/thead>\n \n Unidad de adquisici\u00f3n\/control<\/td>\n SZ-E01<\/td>\n Placa de identificaci\u00f3n<\/td>\n<\/tr>\n \n Terminal de visualizaci\u00f3n<\/td>\n LMI-8000, plataforma Linux<\/td>\n Pantalla del terminal<\/td>\n<\/tr>\n \n Tensi\u00f3n de alimentaci\u00f3n<\/td>\n 24-36 V CC<\/td>\n Placa de identificaci\u00f3n<\/td>\n<\/tr>\n \n Consumo de corriente<\/td>\n 800 mA<\/td>\n Placa de identificaci\u00f3n<\/td>\n<\/tr>\n \n Temperatura de funcionamiento<\/td>\n De \u221230 \u00b0C a +80 \u00b0C<\/td>\n Placa de identificaci\u00f3n<\/td>\n<\/tr>\n \n Bus de campo<\/td>\n CANopen en la unidad; conexi\u00f3n CAN al terminal, sincronizada<\/td>\n Placa de identificaci\u00f3n + barra de estado de la pantalla<\/td>\n<\/tr>\n \n Protecci\u00f3n contra la entrada de elementos<\/td>\n IP67<\/td>\n Placa de identificaci\u00f3n<\/td>\n<\/tr>\n \n N\u00famero de serie de la unidad<\/td>\n SZE01230519<\/td>\n Placa de identificaci\u00f3n<\/td>\n<\/tr>\n \n Error nominal del sistema<\/td>\n \u00b13 %<\/td>\n Datos del producto SeeZol<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n \n
\n \nCanal<\/th>\n Modelo<\/th>\n Alcance \/ precisi\u00f3n<\/th>\n Punto de montaje<\/th>\n<\/tr>\n<\/thead>\n \n Postura corporal<\/td>\n SZ-A01BD<\/td>\n \u00b110\u201390\u00b0, 0,1\u00b0 absoluto, resoluci\u00f3n de 0,05\u00b0, IP67<\/td>\n Plataforma giratoria, base mecanizada, ejes alineados con el punto de referencia de la m\u00e1quina<\/td>\n<\/tr>\n \n \u00c1ngulo de la pluma<\/td>\n SZ-A01BM<\/td>\n Same family, 9\u201336 VDC, 0.02 s response<\/td>\n Boom web above the root hinge, machined pad<\/td>\n<\/tr>\n \n Stick angle<\/td>\n SZ-A01AM<\/td>\n Same family<\/td>\n Stick root hinge<\/td>\n<\/tr>\n \n Boom cylinder, piston side (P1)<\/td>\n SZ-P201S-400<\/td>\n 0\u2013400 bar, 4\u201320 mA, 0.5 % F.S., 0.1 bar<\/td>\n Adaptor block at the cylinder head end<\/td>\n<\/tr>\n \n Boom cylinder, rod side (P2)<\/td>\n SZ-P201S-400<\/td>\n 0\u2013400 bar, 4\u201320 mA, 0.5 % F.S., 0.1 bar<\/td>\n Valve block test port, boom cylinder circuit<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n 4. How a material handler load moment indicator gets installed, sensor by sensor<\/h2>\n
4.1 Angle channels: body, boom, stick<\/h3>\n
![\"SZ-A01BM](\"https:\/\/szlmi.com\/wp-content\/uploads\/2026\/11\/05-boom-angle-sensor-sz-a01bm-boom-web.webp\")
4.2 Pressure channels P1 and P2<\/h3>\n
![\"SZ-P201S](\"https:\/\/szlmi.com\/wp-content\/uploads\/2026\/11\/06-p1-pressure-tapping-boom-cylinder-head.webp\")
![\"Boom](\"https:\/\/szlmi.com\/wp-content\/uploads\/2026\/11\/07-p2-pressure-tapping-valve-block.webp\")
4.3 Acquisition unit and junction boxes<\/h3>\n
![\"SZ-E01](\"https:\/\/szlmi.com\/wp-content\/uploads\/2026\/11\/08-sz-e01-controller-and-cable-box.webp\")
4.4 Harness: ten metres up, and it has to survive the swing<\/h3>\n
![\"Sensor](\"https:\/\/szlmi.com\/wp-content\/uploads\/2026\/11\/09-harness-boom-root-hose-bundle.webp\")
![\"Deutsch-style](\"https:\/\/szlmi.com\/wp-content\/uploads\/2026\/11\/10-harness-connectors-labelled.webp\")
4.5 The display in the cab<\/h3>\n
![\"LMI-8000](\"https:\/\/szlmi.com\/wp-content\/uploads\/2026\/11\/11-lmi-8000-terminal-in-cab.webp\")
5. Calibration: geometry first, then two points<\/h2>\n
6. Field notes: three things that decide whether this load moment indicator still reads true next October<\/h2>\n
7. What the customer actually received<\/h2>\n
8. FAQ: load moment indicator questions from this job<\/h2>\n
9. Tell us the machine, we will come back with a configuration<\/h2>\n