IS Technologies SLM600 Plus Series Bedienungsanleitung
Ultrasonic Level Meter
SLM600 Plus Series
(User’s Manual)
IS Technologies Co., Ltd.
July 2003 Edition
COPYRIGHT
© IS Technologies Co., Ltd. All rights reserved. No part of this publication may be reproduced, transmitted,
transcribed, stored in a retrieval system, or translated into any language in any form without the written
permission of IS Technologies Co., Ltd.
WARRANTY AND LIABILITY
IS Technologies Co., Ltd. guarantees for a period of 1 year from the date of delivery that it will either
exchange or repair any part of this product returned to IS Technologies Co., Ltd. if it is found to be defective
in material or workmanship, subject to the defect not being due to unfair wear and tear, misuse, modification
or alteration, accident, misapplication or negligence.
DISCLAIMER
IS Technologies neither gives nor implies any process guarantee for this product, and shall have no liability
in respect of any loss, injury or damage whatsoever arising out of the application or use of any product or
circuit described herein.
Every effort has been made to ensure accuracy of this documentation, but IS Technologies cannot be held
liable for any errors.
TECHNICAL ENQUIRIES
Please contact IS Technologies Co., Ltd. for technical support.
COMMENTS AND SUGGESTIONS
If you have any comments or suggestions about this product, then please contact:
IS Technologies Co., Ltd.
203/504 Buchon Techno Park, 192
Yakdae Dong, Wonmi Gu
Buchon City, Kyungki Do, Korea
Tel: 82-32-621 2606
Fax: 82-32-621 2612
Web Site: http://www.sondar.com
Contents
Chapter 1 Start Here…............................................................................................................................................................................... 4
About this Manual......................................................................................................................................................................................4
About the SLM 600 Level Monitoring System.......................................................................................................................................5
Functional Description...............................................................................................................................................................................5
Product Specification .................................................................................................................................................................................6
Chapter 2 Installation ................................................................................................................................................................................. 7
Power Supply Requirements .....................................................................................................................................................................7
Terminal Connections............................................................................................................................................................................. 10
Preparation for Operation ....................................................................................................................................................................... 11
Maintenance ............................................................................................................................................................................................ 11
Chapter 3 How To Use Your SLM 600 Level Monitoring System ....................................................................................................... 12
Operating the Controls............................................................................................................................................................................ 12
Display............................................................................................................................................................................................... 12
Run Mode.......................................................................................................................................................................................... 12
Program Mode .................................................................................................................................................................................. 13
How to use buttons.................................................................................................................................................................................. 13
Example of using buttons ....................................................................................................................................................................... 13
What to Do First................................................................................................................................................................................ 16
Chapter 4 Menu Guide............................................................................................................................................................................. 17
Application Menu Options ..................................................................................................................................................................... 17
Current output Menu Options................................................................................................................................................................. 18
Compensation Menu Options................................................................................................................................................................. 19
Output Simulation Menu Options .......................................................................................................................................................... 20
Password Menu Option .......................................................................................................................................................................... 20
Switched Outputs Menu Options ........................................................................................................................................................... 21
Chapter 5 Troubleshooting ...................................................................................................................................................................... 21
Menu Option Record............................................................................................................................................................................... 24
Page 4
Chapter 1 Start Here…
Congratulations on your purchase of a Sondar Ultrasonic Level Meter 600 Series. This quality system has
been developed over many years and represents the latest in high technology ultrasonic level measurement
and control.
It has been designed to give you years of trouble-free performance, and a few minutes spent reading this
operating manual will ensure that your installation is as simple as possible.
About this Manual
It is important that this manual is referred to for correct installation and operation. There are various parts of
the manual that offer additional help or information as shown:
Tips
At various parts of this manual you will find tips to help you.
Additional Information
Additional Information
At various parts of the manual, you will find
sections like this that explain specific items in
more detail.
Page 5
About the SLM600 Series
Functional Description
The Sondar SLM600 Series is a highly developed ultrasonic level measurement system which provides non-
contacting level measurement for a wide variety of applications in both liquids and solids.
Easy calibration and maintenance free “fit and forget” performance mean that you can install the SLM600
Series rapidly and with confidence. Two Switched outputs NPN open collector, with fully programmable
setpoints are provided in the 3 wire version, together with fault condition being indicated by the mA output on
both the 2 and 3 wire versions.
The Sondar SLM600 Series operates on the principle of timing the echo received from a measured pulse of
sound transmitted in air and utilise “state of the art” echo extraction technology.
It can measure distances from 0.35m to 6m from the face of the transducer to the surface being monitored,
dependent on the material being measured.
The SLM600 Series can show level, space, distance, on the display. The switched outputs can be
programmed to give an ‘ON’ and ‘OFF’ point for external control. There is a 4-20 mA output that can be
connected to a remote chart recorder or PLC, to monitor level, space or distance, dependant on the
measurement mode selected, and provides a ‘fault condition’ alarm of either 3.8mA or 21mA.
The Sondar SLM600 Series has an IP65 lid covering an integral LCD display and 4 buttons used for
programming purposes, together with 4 LED’s which provide status information whilst in RUN and
PROGRAM Mode.
Page 6
Product Specification
Physical
Dimensions overall 105 (dia). x 248.5 (height) mm
electronics housing 105 (dia). x 172 (height) mm
transducer housing 55 (dia) x 76.5 (height) mm
mounting 2” NPT
Weight Nominal 1 kg
Case material/description Polypropylene
Cable entry detail 1 x PG11 at rear (fitted with gland)
Environmental
IP Rating (electronics housing) IP65
Max. & Min. temperature (electronics) -20 ºC to +70 ºC (-4 ~ 158°F)
Pressure up to 2 Bar
CE approval EMC approval to BS EN 55011:1991 (Class A),.
BS EN50082-2: 1995 BS EN61000-4-2:1995
BS ENV50140:1993 BS ENV50141:1993
BS ENV50204:1995 BS EN61000-4-4:1995
Performance
Accuracy 0.25% of the measured range or
3 mm (whichever is greater)
Resolution 0.03% of full scale or 1mm (whichever is greater)
Max. range Liquids 6m(256 inches)
Beam Angle 8o at -3dB.
Damping Rate Adjustable 0.1m/min to 10m/min
Temperature Compensation Fully compensated via integral temperature sensor over entire
operational span
Outputs
Analogue output 4-20 mA into max 750Ω(user adjustable) Fault condition Alarm 3.8mA
or 21mA user selectable.
NPN Open Collector switched output 2 Switched outputs, user programmable setpoints.
Display 3 Digit LCD Display
Programming
On-board programming via 4 tactile push button keys
Supply
Power supply DC 20 - 30V
Current Consumption Less than 0.08A
Page 7
Chapter 2 Installation
Power Supply Requirements
The SLM600 operates from a DC supply of 20 –30V and will typically draw less than 0.08A.
All electronic products are susceptible to electrostatic shock, so follow proper grounding
procedures during installation.
The compact one-piece construction of the SLM600 can be mounted easily using the integral nose
thread (2”NPT).
When choosing a location to mount the SLM600, bear in mind the following:
• For easy access to the LCD display and programming buttons mount it where it is easily
accessible.
• The ultrasonic signal path should be free of falling material and obstructions such as pipes,
beams etc.
• The SLM600 should be mounted at least 1.15feet above the maximum level of the material
and be perpendicular to the surface.
• The mounting surface should be vibration-free.
• The ambient temperature is between -20° to 70°c
• There should be no high voltage cables or electrical inverters close by.
• Do not use any metal substances when installing
(Please use the PVC nut & flange supplied as option)
Dimensions
The dimensions of the SLM600 are as shown below
Page 8
Outdoor and Open Vessel Installation
The SLM600 can be simply mounted on a bracket, suitable for the application and secured using
the thread located at the top of the transducer (2”NPT).
Care should be taken to ensure that the SLM600 is not installed in direct sunlight, in order to avoid
errors in the measurement of ambient temperature.
Attention should also be taken, when mounting the unit, to ensure that strong windy conditions are
avoided, wherever possible, to prevent abnormal operation.
Closed Vessel Installation
The SLM600 can be simply screwed into a flange and secured using the thread located at the top
of the transducer (2”NPT).
Where possible use a flange made of a synthetic material such as PVC, to avoid vibration
Place a rubber gasket between the flange of the Sondar and the connection to the vessel to avoid
vibration.
30 cm
Minimum
Bracket
Nut
Page 9
Stand Pipe Installations
When mounting the SLM600 to a standpipe care should be taken to ensure that the standpipe is of
sufficient dia with reference to its length, see the table below for details:
D(mm) Length(mm)
80 224
100 280
150 420
200 560
When using a standpipe, fixed to the top of a vessel, ensure that the open end of the standpipe is
clear of any obstructions such as weld seams, gaskets etc. in order to avoid unwanted signal
returns.
If using standpipes, which extend into the vessel, beyond the blanking distance, but not as far as
the empty level, then the open end of the standpipe should be cut to an angle of 45o.
L
(
mm
)
D(mm)
Incorrect
Standpipe size
Pipe should be free
of obstructions such
as weld seams
The maximum level
(100% of Span) is inside
the Blanking Distance
Page 10
Cable Entry
The SLM600 Series has a single PG9 cable entry, fitted with a suitable gland, to ensure moisture
protection is maintained.
Terminal Connection Details
The SLM600 Series comes in both 2 wire and 3 wire versions the terminal connections for both are
as detailed below. Wiring details are also given on the terminals under the access cover.
Terminal Connections
2 Wire(SLM600B)
① : Direct Current (DC) input terminal (20-30VDC)
② : Current Output terminal (4-20mA)
3 Wire(SLM600A)
① : Limit 1 Switched Output terminal (NPN Open Collector)
② : Limit 2 Switched Output terminal (NPN Open Collector)
③ : Direct Current (DC) input terminal (20-30VDC)
④: Current Output terminal (4-20mA)
⑤: DC COMMON input terminal, and also used as RETURN terminal for all OUTPUTS
⑥: Service use only
2 Wire 3 Wire
① ②
+ -
24V
① ② ③ ④ ⑤ ⑥
24V
+-
L2
+-
m
A
L1
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