Azbil JTD720A User manual

CM2-DST720-2001
Smart Multivariable Transmitter
Model: JTD720A
User’s Manual

Copyright, Notices and Trademarks
© 2004-2020 Azbil Corporation. All Rights Reserved.
While this information is presented in good faith and believed to
be accurate, Azbil Corporation disclaims the implied warranties of
merchantability and tness for a particular purpose and makes no
express warranties except as may be stated in its written agreement with
and for its customer.
In no event shall Azbil Corporation be liable to anyone for any indirect,
special or consequential damages. is information and specications
in this document are subject to change without notice.

Model JTD720A - Smart Multivariable Transmitter i
Safety
Safety instructions
Preface
Correct installation and periodic maintenance are essential to the safe use of your
dierential pressure transmitters.
Read the safety instructions provided in this manual carefully and understand them
fully before starting installation, operation, and maintenance work.
Inspection
On delivery, make sure that the specications are correct and check for any damage
that may have occurred during transportation. This equipment was tested under a
strict quality control program before shipment. If you nd any problem in the quality
specications, please contact an Azbil Corporation representative immediately,
providing the model name and serial number.
The name plate is mounted on the top of the enclosure.
Precautions
The following symbols are used in this manual to ensure user safety.
WARNING
Denotes a potentially hazardous situation which, if not avoided, could result in
death or serious injury.
CAUTION
Denotes a potentially hazardous situation which, if not avoided, could result in
operator minor injury or damage to device.

Safety Azbil Corporation
ii Model JTD720A - Smart Multivariable Transmitter
Safety messages
Installation
WARNING
• When installing the transmitter, ensure that the transmitters gaskets do not
protrude from the process connection parts, such as anges contacting the
process pipes.
• Never use the transmitter in applications that are outside the rated pressure or
temperature range. Always observe connection specications. Damage to the
transmitter, or leakage, may endanger plant, equipment or human safety.
• In areas designated as explosion-proof, apply to any cabling work the methods
specied in the explosion-proong guidelines.
CAUTION
• After installation, do not step on the transmitter as this may damage it, or
cause physical injury.
• The glass indicator may break if hit with a tool or other object, and cause
physical injury.
• Install the transmitter correctly. Incorrect installation may lead to output
errors or violate applicable regulations.
• This transmitter is heavy. During installation, please ensure that your footing
is safe, and always wear safety shoes.
Electrical wiring
WARNING
To avoid electric shocks, dry hands completely before performing wiring work
and turning the power OFF. Wear gloves over dry hands.
CAUTION
• Before startup, study the specications carefully and ensure that the wiring is
correct. Wiring errors may cause hardware damage or other malfunctions.
• Provide a power supply that matches the specications of the transmitter.
Incorrect power supply may cause hardware damage.

Azbil Corporation Safety
Model JTD720A - Smart Multivariable Transmitter iii
Maintenance
WARNING
• Before disconnecting the transmitter from the process for any reason
including maintenance, wait for safe levels in residual pressure, uid or gas.
Extreme caution should be taken to avoid uid eruption.
• Prevent burns. Check venting or draining direction, and keep plant personnel
out of the way of vented gas or drained uid.
• When operational, never open the cover in an explosion-proof area. Avoid
explosions or other combustion accidents.
CAUTION
Strict product controls were exercised during the manufacture of this transmitter.
Never modify the transmitter in any way. In-plant modications may result in
damage to the transmitter or to property and human safety.
Communication equipment
CAUTION
Avoid use of communication equipment near this transmitter. Interference from
such equipment as a transceiver, a cellular phone, a PHS, a beeper may result
in malfunction (at some transmission frequencies). In any case, observe the
following precautions:
Check in advance of using any such equipment, the clearance required to ensure
safe operation of the transmitter. When using communications equipment, always
maintain a distance at least equal to this distance, between the communication
equipment and the transmitter.
Close transmitter cover before using communication equipment.

Safety Azbil Corporation
iv Model JTD720A - Smart Multivariable Transmitter
Unpacking, Checking, and Storage
Unpacking the transmitter
This transmitter is precision equipment. Handle it carefully to prevent an accident and
damage.
Checking accessories
In the package you receive from Azbil Corporation or our representative, is included
the main unit of a transmitter and the following accessories:
• One 3-inch, L-shaped wrench
Checking specications
The specications are marked on the transmitter nameplate. The specications on this
nameplate should agree exactly with your order. Especially, check the following:
• Tag No. (TAG No.)
• Model No. (MODEL)
• Production No. (PROD No.)
• Low and high limits of set range (RANGE)
• Supply voltage (SUPPLY)
• Explosion-proong conformance (mark is applicable only to explosion-proof
model)
Inquiry
Direct any inquiries about this transmitter to out nearest branch oce or
representative.
When making an inquiry, have handy a copy of the details marked on the nameplate:
• Model No. (MODEL)
• Production No. (PROD No.)
Storage
Storage over long periods requires special procedures, to avoid damage to this
instrument. Always store the transmitter:
• Indoors and at normal temperature and humidity.
• In a location subject to minimum vibrations and shocks.
• Before unpacking, not after.

Azbil Corporation Safety
Model JTD720A - Smart Multivariable Transmitter v
Precautions regarding NEPSI explosion protection
The installation, operation and maintenance of the product must comply with the
product specication and the following relevant standards and specications.
GB3836.13-2013: Explosive atmospheres―Part 13:Equipment repair, overhaul and
reclamation
GB3836.15-2017: Electrical apparatus for explosive gas atmospheres Part15:
Electrical installations in hazardous area (other than mines)
GB3836.16-2017: Electrical apparatus for explosive gas atmospheres―Part 16:
Inspection and maintenance of electrical installation (other than
mines)
GB50257-2014 : Code for construction and acceptance of electric equipment on re
and explosion hazard electric equipment installation engineering
Handling precautions
For use in hazardous areas, a cable gland that complies with GB3836.1-2010 and
GB3836.2-2010 and that has been certied by NEPSI as Ex d IIC must be used for
the conduit opening.

Table of Contents
Chapter 1 : Functions, Congurations, and Structures of
model JTD720A and communicator
1-1 : Function and Conguration.............................................................................. 1-1
1-2 : Digital indicator (optional) ................................................................................ 1-2
Main display .................................................................................................... 1-2
Sub display...................................................................................................... 1-3
1-3 : General information and procedures for conguration..................................... 1-5
1-4 : Field Communication Software model CFS100 Functionality and Conguration1-6
1-4-1 : Introduction .......................................................................................... 1-6
1-4-2 : Precautions .......................................................................................... 1-6
1-4-3 : Conguration of Model CFS100 and Peripheral Devices .................... 1-6
1-4-4 : Usage Environment.............................................................................. 1-7
1-4-5 : Conditions for Connected Devices....................................................... 1-7
Chapter 2 : Installation
2-1 : Installation environment ................................................................................... 2-1
2-1-1 : General environmental conditions........................................................ 2-1
Introduction....................................................................................... 2-1
Environmental conditions.................................................................. 2-1
2-1-2 : Environmental conditions for TIIS explosion-proof transmitter............. 2-2
TIIS Explosion-proof transmitter installation precautions.................. 2-2
Special condition for safe use (for NEPSI ameproof) ..................... 2-2
Environmental conditions for ameproof, special explosion-proof
transmitter......................................................................................... 2-2
Reference document ........................................................................ 2-3
2-1-3 : Installing the transmitter....................................................................... 2-4
Before you install the transmitter ...................................................... 2-4
2-1-4 : Transmitter main unit installation position............................................ 2-5
2-2 : Piping ............................................................................................................... 2-6
2-2-1 : Piping considerations........................................................................... 2-6
Introduction....................................................................................... 2-6
3-way method valve (option)............................................................. 2-6
Extension pipe (option)..................................................................... 2-6
High-pressure marking ..................................................................... 2-7
Pipe selection ................................................................................... 2-7
Materials and requirement................................................................ 2-7
Piping for liquid gas or steam ow rate measurement...................... 2-8
2-3 : Electrical wiring .............................................................................................. 2-11
2-3-1 : Wiring for general-use model............................................................. 2-11
Introduction..................................................................................... 2-11
Wiring.............................................................................................. 2-11

Table of Contents
Conduit pipe.................................................................................... 2-12
Grounding....................................................................................... 2-12
Supply power.................................................................................. 2-12
2-3-2 : Wiring for explosion-proof model ....................................................... 2-14
2-4 : Changing process connection port position ................................................... 2-15
2-4-1 : Changing the vertical position of the process connection port........... 2-15
Chapter 3 : Starting and Stopping this Device
3-1 : Operation Preparation...................................................................................... 3-2
3-1-1 : Communicator Connection................................................................... 3-2
3-2 : Tag Number Conguration and Checking various settings.............................. 3-3
3-2-1 : Tag Number Conguration................................................................... 3-3
3-2-2 : Output Format Conguration................................................................ 3-4
3-2-3 : Checking or setting the indicator display unit....................................... 3-4
3-2-4 : Checking or setting the lower and upper limits of indicator ................. 3-6
3-2-5 : Damping Time Constant Conguration................................................ 3-7
3-2-6 : Checking or setting the design pressure.............................................. 3-8
3-2-7 : Checking or setting the design temperatue ......................................... 3-8
3-2-8 : Setting the temperature-pressure correction........................................ 3-9
3-2-9 : Checking or setting the static pressure elevation .............................. 3-10
3-3 : Measurement ................................................................................................ 3-11
3-3-1 : Flow Rate Measurement.................................................................... 3-11
Chapter 4 : Instrument maintenance and troubleshooting
4-1 : Assembly and Disassembly of this Device ...................................................... 4-1
4-1-1 : Cautions During Assembly and Disassembly ...................................... 4-1
4-1-2 : Attaching and Detaching the Case Cover............................................ 4-2
4-1-3 : Attaching and Detaching the Main Unit Cover .................................... 4-3
4-1-4 : Cleaning the Device............................................................................. 4-4
4-2 : Calibration of the Setting Range and Output Signal ........................................ 4-5
4-2-1 : Setting Range Calibration Using a Reference Input Device ................ 4-5
4-2-2 : Calibrating the di󰀨ernetial pressure sensor.......................................... 4-7
4-2-3 : Calibrating the static pressure sensor................................................ 4-10
4-2-4 : Calibrating a temperature sensor....................................................... 4-12
4-3 : Output Signal Calibration ............................................................................... 4-13
4-4 : Troubleshooting ............................................................................................. 4-14
4-4-1 : Checking this instrument.................................................................... 4-14
4-4-2 : Checking Self-diagnostic Messages .................................................. 4-15
4-4-3 : Status Message ................................................................................. 4-16

List of Figures & Tables
Figures
Figure 1-1 Digital indicator .................................................................................................... 1-1
Figure 2-1 Name plate and conformance mark ....................................................................... 2-3
Figure 2-2 Installing the transmitter ....................................................................................... 2-4
Figure 2-3 Equipment for line mounting ................................................................................ 2-4
Figure 2-4 3-way manifold valve (Model MVG1) ................................................................. 2-7
Figure 2-5 Extension pipe ....................................................................................................... 2-7
Figure 2-6 High pressure marking on center body ................................................................. 2-8
Figure 2-7 Piping for gas or liquid ow rate measurement .................................................... 2-9
Figure 2-8 Pipe for gas or liquid ow measurement ............................................................. 2-10
Figure 2-9 Piping for steam ow measurement .................................................................... 2-11
Figure 2-10 Wiring ............................................................................................................... 2-12
Figure 2-11 Supply voltage and load resistance characteristics ........................................... 2-13
Figure 2-12 Connecting SFC ................................................................................................ 2-14
Figure 3-1 .............................................................................................................................. 3-5
Figure 3-2 Items displayed on LCD ........................................................................................ 3-8
Figure 3-3 Flowchart of conguration data entry ................................................................... 3-9
Tables
Table 1-1 Operation modes of transmitter .............................................................................. 1-5
Table 4-1 Cover Bolt and Nut Tightening Torques (N·m) ..................................................... 4-3
Table 4-2 Troubleshooting .................................................................................................... 4-14