PAT DS 350 User manual

www.patamerica.co
PAT America, Inc.
LOAD MOMENT INDICATOR
DS 350 / 1361 Graphic
RT875CC
OPERATOR’S MANUAL
P/N 031-300-190-137 REV E 09/03/2002

Operator's Manual DS 350 / 1361 RT 875 CC
© PAT Revision E // SB // 09/03/02 190137_E
NOTICE
PAT America, Inc. makes no warranty of any kind with regard to this material, including,
but not limited to, the implied warranties of merchantability and/or its fitness for a
particular purpose.
PAT America, Inc. will not be liable for errors contained in this manual or for incidental or
consequential damages in connection with the furnishing, performance, or use of this
manual. This document contains proprietary information, which is protected by copyright,
and all rights are reserved.
No part of this document may be photocopied, reproduced, or translated to another
language without the prior written consent of PAT America, Inc.
PAT America, Inc. reserves proprietary rights to all drawings, photos and the data
contained therein. The drawings, photos and data are confidential and cannot be used or
reproduced without the written consent of PAT America, Inc. The drawings and/or photos
are subject to technical modification without prior notice.
All information in this document is subject to change without notice.
MANUAL REVISIONS
REV DATE NAME DESCRIPTION
- 09/13/01 WAB Created operator’s manual, ECN 01-263
A 11/09/01 SB ECN 01-308
B 07/19/02 SB ECN 01-308
C 07/19/02 SB ECN 02-201
D 08/28/02 SB ECN 02-231
E 09/03/02 SB ECN 02-231
© 2001 PAT America, Inc.

Operator's Manual DS 350 / 1361 RT 875 CC
© PAT Revision E// SB // 09/03/02 190137_E
Table of Contents
1GENERAL INFORMATION........................................................................................ 1
2WARNINGS................................................................................................................ 2
3SYSTEM DESCRIPTION ........................................................................................... 3
3.1 System Function............................................................................................................. 5
3.2 Operating Console ......................................................................................................... 5
3.3 Control Identification ..................................................................................................... 6
4CONFIGURATION SETUP....................................................................................... 11
4.1 LMI Setup Procedure.................................................................................................... 11
4.2 Quick Setting of the Reeving....................................................................................... 15
4.3 Quick Hoist Line Selection .......................................................................................... 16
4.4 Anti-two Block (A2B) Switch(es)................................................................................. 17
5OPERATION ............................................................................................................ 18
5.1 LIMIT Setting ................................................................................................................. 20
5.1.1 Tip Height Limitation............................................................................................. 21
5.1.2 Boom Angle Limitation ......................................................................................... 22
5.1.3 Radius Limitation .................................................................................................. 24
5.2 INFO crane configuration ............................................................................................ 26
5.3 Display Contrast Control ............................................................................................. 27
5.4 Display Dimmer ............................................................................................................ 28
6Pre-Operation Inspection and Calibration Verification ....................................... 29
7SERVICE AND MAINTENANCE.............................................................................. 32
8ERROR CODES ....................................................................................................... 33

General Information
© PAT Revision E // SB // 09/03/02 190137_E
1
1 GENERAL INFORMATION
The PAT Load Moment Indicator1(LMI) DS 350 has been designed to provide the crane
operator with essential information required to operate the machine within its design
parameters.
This low temperature system uses heaters for stable system operation in a subzero
climate. The main electronics are automatically warmed before the system boards and
components are energized. Therefore, all system components must be installed and
sealed from the environment when operating and/or troubleshooting in low temperature
conditions.
Using a variety of sensing devices, the Load Moment Indicator monitors various crane
functions and provides the operator with a continuous reading of the crane’s capacity. The
readings continuously change as the crane moves through the motions necessary to
make the lift.
The LMI provides the operator with information regarding the length and angle of the
boom, working radius, rated load and the calculated total weight being lifted by the crane.
If prohibited conditions are approached, the DS 350 Load Moment Indicator will warn the
operator by sounding an audible alarm, lighting a warning light, and rendering
inoperative those functions that may aggravate the crane’s condition.
1LOAD MOMENT: generally the product of a force and its moment arm; specifically, the product of the load and the load-radius. Used in the
determination of the lifting capacity of a crane

Operator's Manual DS 350 / 1361 RT 875 CC
© PAT Revision E // SB // 09/03/02 190137_E
2
2 WARNINGS
The LMI is an operational aid that warns a crane operator of approaching overload
conditions and of overhoist conditions that could cause damage to equipment and
personnel.
The device is not, and shall not, be a substitute for good operator judgment, experience
and use of accepted safe crane operating procedures.
The responsibility for the safe crane operation shall remain with the crane operator who
shall ensure that all warnings and instructions in this manual and supplied by the crane
manufacture are fully understood and observed.
Prior to operating the crane, the operator must carefully and thoroughly read and
understand the information in this manual to ensure that he knows the operation and
limitations of indicator and crane.
The anti-two block switches must be used in ALL operations. Simultaneous
two-hoist working is prohibited in all circumstances.
Proper functioning depends upon proper daily inspection and observance of the operating
instructions set forth in this manual. Refer to Section 6. Pre-Operation Inspection and
Calibration Verification of this manual.
The LMI can only work correctly, if all adjustments have been properly set. For
correct adjustment, the operator has to answer thoroughly and correctly all
questions asked during the setup procedure in accordance with the real rigging
state of the crane. To prevent material damage and serious or even fatal
accidents, the correct adjustment of the LMI has to be ensured before starting
the crane operation.

System Description
© PAT Revision E // SB // 09/03/02 190137_E
3
3 SYSTEM DESCRIPTION
The PAT Load Moment Indicator DS 350 consists of a central micro processor unit,
operating console, length/angle sensor, pressure transducers, and anti-two block
switches. This low temperature system uses heaters for stable system operation in a
subzero climate. The main electronics are automatically warmed before the system boards
and components are energized. In low temperature conditions, a warm-up period is
required.
The system operates on the principle of reference/real comparison. The real value,
resulting from the pressure measurement is compared with the reference data, which is
stored in the central processor memory and evaluated in the micro processor. When limits
are reached, an overload warning signal is generated at the operator’s console. At the
same time, the aggravating crane movements, such as hoist up, telescope out and boom
down, will be stopped.
Fixed data regarding the crane, such as capacity charts, boom weights, centers of gravity
and dimensions are stored in memory chips in the central processor unit. This data is the
reference information used to calculate the operating conditions.
Boom length and boom angle are registered by the length/angle sensor mounted inside
the cable reel, which is mounted on the boom. The boom length is measured by the cable
reel cable, which also serves as an electrical conductor for the anti-two-block switches.
The crane load is measured by pressure transducers attached to the piston and rod side
of the hoist cylinders.
The interactive user guidance considerably simplifies the input of operating modes as well
as the setting of geometry limit values.

Operator's Manual DS 350 / 1361 RT 875 CC
© PAT Revision E // SB // 09/03/02 190137_E
4
Fig. 1: Components of the LMI system PAT DS 350
1 Central-Micro-Processor Unit
2 Operating Console
3 Pressure Transducers
4 Length/Angle Sensor
5 Anti Two-Block Switch(es)
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