4B Digimatic DML4W Manual de usuario
www.go4b.com
Digimatic™
RADIO FREQUENCY (RF) CAPACITANCE
POINT LEVEL INDICATOR
INSTALLATION INSTRUCTIONS
OPERATION MANUAL
Part No DML4W
CUSTOMER SAFETY RESPONSIBILITIES Page 4 - 5
PRODUCT OVERVIEW Page 6
SPECIFICATIONS Page 6
DIMENSIONS Page 7
INSTALLATION Page 8
STANDARD WIRING DIAGRAM Page 9
SENSOR OPERATION Page 10 - 11
SENSOR CALIBRATION Page 12 - 13
POWER SHIELD OVERVIEW Page 14
TESTING AND COMMISSIONING Page 15
TROUBLESHOOTING GUIDE Page 15
PARTS AND ACCESSORIES Page 16
PRODUCT WARRANTY Page 17
TABLE OF CONTENTS
PAGE 4
Dear 4B Customer:
Congratulations on your purchase. 4B appreciates your business and is pleased you have chosen our
products to meet your needs.
Please read in its entirety and understand the literature accompanying the product before you place the
product into service. Please read the safety precautions carefully before operating the product. With each
product you purchase from 4B, there are some basic but important safety considerations you must follow
to be sure your purchase is permitted to perform its design function and operate properly and safely, giving
you many years of reliable service. Please read and understand the Customer Safety Responsibilities
listed below. Failure to follow this safety directive and the Operation Manuals and other material furnished
or referenced, may result in serious injury or death.
SAFETY NOTICE TO OUR CUSTOMERS
A. In order to maximize eciency and safety, selecting the right equipment for each operation is vital.
The proper installation of the equipment, and regular maintenance and inspection is equally important
in continuing the proper operation and safety of the product. The proper installation and maintenance
of all our products is the responsibility of the user unless you have asked 4B to perform these tasks.
B. All installation and wiring must be in accordance with Local and National Electrical Codes and
other standards applicable to your industry. The installation of the wiring should be undertaken by
an experienced and qualied professional electrician. Failure to correctly wire any product and/or
machinery can result in the product or machine failing to operate as intended, and can defeat its design
function.
C. Periodic inspection by a qualied person will help assure your 4B product is performing properly. 4B
recommends a documented inspection at least annually and more frequently under high use conditions.
D. Please see the last page of this manual for all warranty information regarding this product.
CUSTOMER SAFETY RESPONSIBILITIES
1. READ ALL LITERATURE PROVIDED WITH YOUR PRODUCT
Please read all user, instruction and safety manuals to ensure that you understand your product operation
and are able to safely and eectively use this product.
2. YOU BEST UNDERSTAND YOUR NEEDS
Every customer and operation is unique, and only you best know the specic needs and capabilities of
your operation. Please go to www.go4b.com or call the 24-hour hotline at +1-309-698-5611 for assistance
with any questions about the performance of products purchased from 4B. 4B is happy to discuss product
performance with you at any time.
PAGE 5
3. SELECT A QUALIFIED AND COMPETENT INSTALLER
Correct installation of the product is important for safety and performance. If you have not asked 4B to
perform the installation of the unit on your behalf, it is critical for the safety of your operation and those
who may perform work on your operation that you select a qualied and competent electrical installer to
undertake the installation. The product must be installed properly to perform its designed functions. The
installer should be qualied, trained, and competent to perform the installation in accordance with local
and national electrical codes, all relevant regulations, as well as any of your own standards and preventive
maintenance requirements, and other product installation information supplied with the product. You
should be prepared to provide the installer with all necessary installation information to assist in the
installation.
4. ESTABLISH AND FOLLOW A REGULAR MAINTENANCE AND INSPECTION SCHEDULE FOR
YOUR 4B PRODUCTS
You should develop a proper maintenance and inspection program to conrm that your system is in good
working order at all times. You will be in the best position to determine the appropriate frequency for
inspection. Many dierent factors known to the user will assist you in deciding the frequency of inspection.
These factors may include but are not limited to weather conditions; construction work at the facility; hours
of operation; animal or insect infestation; and the real-world experience of knowing how your employees
perform their jobs. The personnel or person you select to install, operate, maintain, inspect or perform
any work whatsoever, should be trained and qualied to perform these important functions. Complete
and accurate records of the maintenance and inspection process should be created and retained by you
at all times.
5. RETAIN AND REFER TO THE OPERATION MANUAL FOR 4B’S SUGGESTED MAINTENANCE
AND INSPECTION RECOMMENDATIONS
As all operations are dierent, please understand that your specic operation may require additional
adjustments in the maintenance and inspection process essential to permit the monitoring device to
perform its intended function. Retain the Operation Manual and other important maintenance and service
documents provided by 4B and have them readily available for people servicing your 4B equipment.
Should you have any questions, please call go to www.go4b.com or call the 24-hour hotline at +1-309-
698-5611.
6. SERVICE REQUEST
If you have questions or comments about the operation of your unit or require the unit to be serviced
please contact the 4B location who supplied the product or call us via our 24-hour hotline number in the
USA (309-698-5611). Please have available product part numbers, serial numbers, and approximate
date of installation. In order to assist you, after the product has been placed into service, complete the
online product registration section which is accessed via our website www.go4b.com.
PRODUCT OVERVIEW
The DIGIMATIC is a xed point Level Controller incorporating a microcomputer which is used to automatically
calibrate the probe to suit the material being detected. Full manual override facilities are included.
The DIGIMATIC employs a power shield to minimise the eect of material adhering to the probe making it
ideal for detecting most materials including sticky or viscous types. It is equally suited to both liquids and
solids. The probe may be a solid rod, metal plate or wire rope. The self contained DIGIMATIC is normally
supplied with a loose probe, available as a stainless steel rod in standard lengths of 100mm, 1 metre or 2
metres, or as a 10 metre wire rope suspension probe and weight.
The probe should be screwed to the DIGIMATIC. Prior to attachment, the probe length can be reduced or
increased, if desired, but see notes a) and b) regarding minimum surface area.
NOTES:-
The DIGIMATIC sensitivity is proportional to the surface area of the probe. When using a 16mm dia. probe the minimum length
to use, for the majority of materials, is 200mm. This should be treated as the minimum if
possible.
If the probe length needs to be reduced to less than 200mm, the surface area should be maintained. This can be achieved by
increasing the diameter, by tting a metal tube over the probe, or by bending the probe rod. In certain high density materials it
may be possible to reduce the length without compensation.
SPECIFICATIONS
Power Supply - 110V/230V ac 50/60 Hz or 24V dc (Stabilised) (+6.5% to -10%).
Operating Temp. - -20° C to 50° C
Output - S.P.C.O 240 VAC Contacts Rated at 2.5 Amps non-inductive
Mounting - Via 1” BSP Parallel thread
Fail Safe - Low Level or High Level (Selectable)
Calibration - Push Button (With or Without Material)
LED Display - Measured Values (Covered, Uncovered, Trip)
LED Indicator - Material Detection
Time Delay - 0 - 128 second variable. (prevents false signaling from splashing).
Probes - Stainless Steel, available in 100mm, 1 metre, 2 metre, or 10 metre wire rope
Conduit Entry - Two conduit entry tapped 20mm (One blind, drill out to use).
Enclosure - Modied Polyamide 66.
Protection - IP65
Earth Bonding - Earth stud located on exterior of main case. This stud must be connected to
earth, bonded to container or metalwork of container and exterior of armour
cabling, if used
PAGE 6
PAGE 7
DIMENSIONS
ALL DIMENSIONS
IN MM
PAGE 8
INSTALLATION
A thread locking compound is already applied to the probe xing stud of the Digimatic. This will prevent the
probe rod from vibrating loose. Once tted, the compound is fully hardened after 20 minutes.
IMPORTANT: If the probe rod is removed from the unit for any reason, a thread locking compound must
be applied before the rod is retted.
When mounting all versions of the Digimatic, care must be taken to ensure that the power shield is properly
installed.
DIGIMATIC will operate on 110V/230V ac 50/60Hz or 24V dc supplies. The unit may be wired in ordinary
un-screened cable of any length and need not be separated from other cables.
A SUPPLY EARTH IS ESSENTIAL!
When mounting the DIGIMATIC, care must be taken to ensure that the exposed end of the power shield
protrudes into the container.
Mount unit securely to minimise vibration. Connect in accordance with the standard wiring diagram, and
set High/Low switch to required position (see below), ensure that cable gland and back cover are fully
tightened when nished. The DIGIMATIC has two 20mm cable entries, one of which is blank, the blank
may be drilled out carefully if required; it must not be knocked out.
The unit should be wired and earthed in accordance with appropriate Electrical Regulations. The unit must
beearthedandtheterminalMUSTbe bonded to the earth bond stud.Onmetalcontainers,unitearthMUST
be bonded to the container. If the container is non-metallic, metal anges or couplings used to mount probe
should be bonded to earth. This also applies to probes mounted in wooden or plastic tops of metal bins.
Fail Safe Setting
The “High/Low” switch, sets the fail safe mode. In the “High” position, the relay is de-energised with material present. In the
“Low” position, the relay is energised with material present. Normally, the “High” position is used for high level probes and the
“Low” for low level probes. Intermediate probe settings depend upon individual requirements.
WARNING
Proper spacing of the power shield is vital for correct operation. For questions regarding proper spacing
of the power shield to the vessel wall, contact 4B.
PAGE 9
All wiring must be In accordance with local and national electrical codes and should
be undertaken by an experienced and qualied electrician.
A thread locking compound is already applied to the probe xing stud of the
DIGIMATIC. This will prevent the probe rod from vibrating loose. Once tted, the
compound is fully hardened after 20 minutes.
IMPORTANT: If the probe rod is removed from the unit for any reason. a thread
locking compound must be applied before the rod is retted.
STANDARD WIRING DIAGRAM
SENSOR OPERATION
PAGE 10
FAIL SAFE SETTING -
The “High/Low” switch (D - Image D), sets the fail safe mode. In the “High” position, the relay is energized
without material present. In the “Low” position, the relay is energized with material present. Normally,
the “High” position is used for high level probes and the “Low” position for low level probes. Intermediate
probe settings depend upon individual requirements.
ELECTROSTATIC RISK - Ensure that the enclosure is not subject to charging in end application.
PARK MODE -
In normal operation, the LED display shows a value representing the capacitance measured by the probe
at the time.
Pressing and holding the “Probe Covered / Raise” button (E - Image D) will cause the display to
show CXXX followed by RXXX.
Pressing and holding the “Probe Un-Covered / Lower” button (F - Image D) will cause the display
to show UXXX followed by RXXX.
CXXX is the probe covered value measured during calibration, UXXX is the uncovered value and RXXX is
the relay operating point which theAuto-Set calculates and is half way between the two measured values.
NOTE
In park mode, settings are “View Only” and cannot be altered.
Image D
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