Manufacturers of Wireless Weighing Systems GS375 Display & Anti-Two-Block INSTALLER AND USER’S MANUAL Two -Blo ck Low ww w.l oa ds ystte ms Two .co -BBlo m lc k Batt Low Batt Ma in H ois t Au xH BY PA S GS 3 75 ois t S TE ST An ti-T wo -Bl ock ! WARNING! ! GM375 The GS375 system is designed as an operator aid and is in no way a substitute for safe operating practice. WARNING! Carefully read and understand this manual before proceeding. REV.20090303 www.loadsystems.
BEFORE PROCEEDING Read and understand the following: For your safety and that of the people that come into contact with LSI products, understand the significance of the instructions included in this guide, respect all laws and regulations and comply with applicable standards. Pay particular attention to items bearing the alert symbol ! and the following words: WARNING! ! Warning: this denotes an instruction that if not complied with may lead to serious injury or death.
TABLE OF CONTENTS 1. INTRODUCTION 1.1 OVERVIEW ........................................4 1.2 START-UP ..........................................4 1.3 RECOMMENDED OPERATING CONDITIONS ....................................4 2. INSTALLATION 2.1 DISPLAY GS375 ................................5 2.1a Mounting Bracket ........................................5 2.1b Antenna Position ........................................6 2.1c Power Supply and Lockout Connection ......6 2.
1. INTRODUCTION 1.1 Overview The anti-two-block indicator kit includes a GS375 display and one or two wireless anti-two-block switches. The GS375 creates a two-way radio network with the anti-two-block(s) to monitor status. When an anti-two-block switch goes from safe to alarm condition, the GS375 will activate its alarm and lockout wires within 0.05 seconds. The lockout wire can be connected to a relay to block crane functions such as boom out or hoist up. 1.
2. INSTALLATION ! WARNING! Installation must be made in compliance with LSI instructions and using supplied components only. Failure to install all parts, or replacing parts or components with parts or components not supplied by LSI , may lead to system failure, serious injury or death. 2.1 Display GS375 ! IMPORTANT! Do not crack or puncture the membrane fascia. The GS375 display is splash and rain proof. Waterproofing depends in part on the integrity of the membrane.
2.1b Antenna Position For optimal performance the antenna should be positioned on its side such that it is parallel to the sensor antenna (but not pointing directly to or directly away from it). ← To GS375 To valve coil if normally open is required Bosch relay 1. Adjust the antenna position with the articulating base. 2. The antenna should have 5 inches of clear space all around it. 3. The antenna should have an unobstructed line of sight to all sensor antennas at all boom angles. 2.
2.2 GS050 Anti-Two block Switch and GS075 All-In-One Anti-TwoBlock Switch and Weight ! 0.3 0.2 25 ø0.38 30° 5 Up to 8 in. (20 cm) diameter • The anti-two-block switch antenna should point to the left or to the right of the boom; it should not point directly to, or away from, the GS375 display. Mount bracket below and behind sheave center. Verify the anti-two-block switch is programmed to the GS375 display. Switches shipped with displays are pre-programmed in the factory.
For live end mounting on multiple sheave blocks with sheaves greater than 16 inches (41 centimetres) in diameter consult your service representative. Mount bracket 4 in. (10 cm) below sheave center. Boom base Figure: Jib, rooster or other extension; anti-two-block switch placement for single part of line operation only For fast line weight installation place the anti-twoblock switch mounting bracket directly below the sheave center as low and as close to the edge of the sheave as possible.
the hoisting distance remaining; this distance must be great enough to allow the operator and the lockout system, if installed, to prevent a two-block event. If necessary, add chain between the sensor and weight to increase warning distance. If still insufficient, contact your service representative. Increase 2. Chain length adjustment № 2 – maximum boom angle a. Raise the boom to the maximum angle. b. Hoist slowly as described in Step 1.b.
3. OPERATION www.loadsystems.
4. MAINTENANCE 4.1 Replacing the Anti-TwoBlock Battery ! IMPORTANT! Replace all the batteries of the anti-two-block switch at the same time. Unchanged batteries will reverse polarity severely reducing battery life. nylon hex bolt of the wire rope. Tighten well. 7. Pull and release the wire rope, the light emitting diode (LED) on the bottom of the sensor should flash red. New high quality “C” cell battery: 3.
4.2 Replacing the Sensor Antenna Heavily damaged antennas (ripped out, sheared off, wire exposed and fraying etc.) should be replaced to ensure effective communication between the sensor and the cabin mounted display unit. 7. Slide the white nylon hex bolt to the middle of the length of the new antenna. 8. Coat the exposed metal foot of the new antenna with an electrical insulating compound by carefully inserting it in the mouth of the compound tube.
5. CERTIFICATION NOTES 5.1 FCC and IC – Instructions to the User This equipment has been tested and found to comply with the limits for a class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
6. LSI PRODUCT LIMITED WARRANTY - 2009/02/16 6.1 Limited Warranty LOAD SYSTEMS INTERNATIONAL INC.
DEALING OR USAGE OF TRADE, WHICH ARE EXPRESSLY DISCLAIMED. NO ORAL OR WRITTEN INFORMATION OR ADVICE GIVEN BY LSI OR ITS EMPLOYEES OR REPRESENTATIVES SHALL CREATE A WARRANTY OR CONDITION OR IN ANY WAY INCREASE THE SCOPE OF LSI’S LSI OBLIGATION. LSI DOES NOT WARRANT THAT THE BUSINESS RESULTS OBTAINED FROM THE USE OF THE PRODUCTS WILL BE APPROPRIATE OR ADEQUATE FOR THE PURCHASER. 6.
LSI Contact Information Technical Support: LSI Technical Support is available 24 hours a day, 7 days a week from our Houston and Dubai locations. Please direct all technical support questions to either of these locations or contact us via email: techsupport@loadsystems.com North America Middle East & Africa Toll Free Phone: (888) 819 4355 Toll Free Fax: (888) 238 4099 International: +1 (281) 664 1330 USA Corporate Office: 9223 Solon, Suite A Houston, TX 77064 Direct Phone: 281.664.1330 Direct Fax: 281.
