Manual
Expert™ 1400 / Expert™ 3400
Submersible Hydrostatic Level Transmitters
ll 2G
EEx ia llC T6
Manual Expert 1400/3400 GB 0704
As our products are continuously improved, we reserve the right to make
any change in the stated specifications and dimensions without prior notice.
MJK Automation A/S
Byageren 7
DK-2850 Naerum
Denmark
Tel.: +45 45 56 06 56
Fax: +45 45 56 06 46
mjk@mjk.com
www.mjk.com
Manual
Approvals
CE Certificate of conformity
This product complies with the requirements concerning electromagnetic compatibility (EMC) stipulated in Council
directive no. 89/336/EEC of 3rd May 1989, altered at directive no. 92/31/EEC, on the approximation of the laws of the
Member States relating to electromagnetic compatibility.
We declare that the product complies to the values stipulated in EN50014:1997, EN50020:2002,
EN61000-6-3/-4:2001 and EN61000-6-1/-2:1999.
Manual Expert 1400/3400 GB 0704
2
MJK Automation A/S
Byageren 7
DK-2850 Naerum
Denmark
Tel.: +45 45 56 06 56
Fax: +45 45 56 06 46
mjk@mjk.com
www.mjk.com
Manual
Introduction 4
Product identification
Safety instructions 4
Hazardous areas 4
Repair 4
Mechanical mounting 5
Model 1400 5
Model 3400 5
Model 3400 with thread top 5
Electrical mounting 6
Cable length vs. supply voltage 6
Designation of wires, cutting & stripping the cable 6
Explosion hazardous zone 7
Isolator 7
Zener barrier
Appendices 8
Mechanical dimensions 8
Demands for cables in explosive areas 8
Safety Instructions 9
Data Sheet for Expert™ 1400 Level Transmitter 12
Data Sheet for Expert™ 3400 Level Transmitter 13
4
7
Manual Expert 1400/3400 GB 0704
3
MJK Automation A/S
Byageren 7
DK-2850 Naerum
Denmark
Tel.: +45 45 56 06 56
Fax: +45 45 56 06 46
mjk@mjk.com
www.mjk.com
Manual
Introduction
Thank you for choosing ExpertTM Level Transmitter.
We have done everything possible to make a level
transmitter that can fulfil all your demands.
ExpertTM Level Transmitter is suitable for all kinds of level
measurements. It can control and supervise levels in wells
and tanks - including aggressive and polluted media.
The ExpertTM Level Transmitter is both easy to install and
put into service, but read this manual first - then you will
get the most benefits from the ExpertTM Level Transmitter
right from the beginning.
You can always contact your representative or the MJK
Service Hotline for advice and guidance. Also, take a
look at http://www.mjk.com
ExpertTM Level Transmitter is registered trademark of MJK.
Thank you for choosing MJK Automation A/S as your
supplier of hydrostatic level transmitter.
Product identification
It is very important for the overall measuring accuracy that
the pressure transmitter has the correct pressure range.
Check that the item(s) delivered corresponds to the
ordered item (s) by means of the information on the label
on the packing:
On the model 3400 transmitters, the pressure ranges together with the corresponding part numbers are printed
on a label on the transmitter housing.
For all versions the pressure range is indicated on the
label.
3400 transmitter
Safety instructions
1: Read this manual carefully.
2: Be aware of the environment on the installation site.
Wear necessary protective equipment and follow all current
safety regulations.
3: Do not operate the equipment outside the specified
electrical, thermal and mechanical parameters (see
datasheet). Install the device only in media for which the
wetted materials have sufficient durability. (See datasheet
for housing material)
Max. supply voltage is 30 VDC.
4: Do not connect or use any programming interface/
equipment while the transmitter is located in an explosion
hazardous environment.
On the model 1400 transmitters, the pressure ranges together with the corresponding part numbers are printed
on a label on the transmitter housing.
For all versions the pressure range is indicated on the
label.
1400 transmit ter
Manual Expert 1400/3400 GB 0704
Hazardous areas
1: All current local and national standards, regulations
regarding installation and use of Ex or hazardous zone
approved equipment, certifications and safety instructions
for Ex equipment that have been used together with the
installation of the Expert 1400 or 3400 level transmitter
must be strictly observed.
2: The use of an approved zener barrier or isolator is
mandatory when installing Expert™ Level Transmitter
1400 and 3400 in explosion hazardous areas.
Repair
1: Repair of EX approved equipment must only be made
by MJK or by a service representative approved by MJK.
4
MJK Automation A/S
Byageren 7
DK-2850 Naerum
Denmark
Tel.: +45 45 56 06 56
Fax: +45 45 56 06 46
mjk@mjk.com
www.mjk.com
Manual
Mechanical mounting
Model 1400
1: Mount a suitable hook over the desired measuring
location. Note the weight of the cable.
2: Remove the inner conical sleeve from the cable fitting
and pull the cable through the outer part. Open the inner
sleeve and fit it around the cable at the desired fixation
point and press the inner sleeve into place in the outer
part. Secure the cable fitting by pulling the
cable downwards.
3: Lower the pressure transmitter into the wellpipe.
Take care not to hit the bottom hard since it may damage
the transmitter!
Model 3400
1: Mount a suitable hook over the desired measuring
location. Note the weight of the cable.
2: Mount the cable fitting onto the cable. Open the fitting
by sliding the two plastic jaws upwards, place the cable
between the jaws and slide the jaws downwards until the
cable locks. Secure the cable fitting by pulling the
cable downwards.
3: Lower the pressure transmitter into the liquid.
Take care not to hit the bottom hard since it may damage
the transmitter!
4: If the transmitter is to be used in a wetwell or other
locations with turbulence or other disturbance, it is advisable to install a pipe (min. nominal diameter = 75 mm)
to protect the transmitter from bumping into the wall or
other components.
It is very important that minimum 25 mm of the pressure
transmitter is not being covered by the pipe!
Cable
bracket
Model 1400
Cable
bracket
Protective pipe.
Protective pipe.
Min. nominal
diamete r = 75mm
Model 3400
Min. 25-50 mm
Model 3400 with thread top
1: Mount the pressure transmitter onto a 1 in pipe
(1” ISO thread) and mount the pipe firmly at the desired
measuring location.
2: Lower the pressure transmitter into the liquid.
Take care not to hit the bottom hard since it may damage
the transmitter!
Manual Expert 1400/3400 GB 0704
1" ISO thread
Model 3400
5
MJK Automation A/S
Byageren 7
DK-2850 Naerum
Denmark
Tel.: +45 45 56 06 56
Fax: +45 45 56 06 46
mjk@mjk.com
www.mjk.com