HDI 1021 Manuel utilisateur
HDIGAUGES.COM
HDI 1021/2021 4-20mA Transmitter
USER'S MANUAL
Rev5
(Custom designed top pictured above. Unit may vary.)
HDI 1021/2021 4-20mA Transmitter
User’s Manual
REV 5 – 03/2022
HDI INSTRUMENTS, LLC
7240 BRITTMOORE ROAD, SUITE 119, HOUSTON, TX 77041
+1 (713) 688-8555 PH | +1 (713) 688-2888 FAX
WWW.HDIGAUGES.COM
1
Table of Contents
SECTION I
Systems General Information:
General Information.........................................................................2
Unpacking and Inspection................................................................2
PrecautionaryInformation................................................................2
Personnel Qualifications...................................................................2
SECTION II
Systems Description:
Systems Description........................................................................3
System Components........................................................................3
Pressure Transducers......................................................................3
Cables..............................................................................................4
System Capacities............................................................................5
Transducers.....................................................................................4
SECTION III
Installation:
Components.....................................................................................4
Transducer.......................................................................................4
Cables..............................................................................................4
Mounting Components......................................................................4
Pressure Transducers.......................................................................4
SECTION IV
Theory of Operation:
Pressure System..............................................................................5
Factory Preset Calibration................................................................5
SECTION V
Maintenance:
Guidelines........................................................................................5
Schematic Drawing/Parts List……....................................................6
SECTION VI
Certifications:
Certificates………………....................................................................7
Tags…………………………..................................................................11
SECTION VII
Data and Product Configuration Sheet............................................12
Warranty........................................................................................15
HDI 1021/2021 4-20mA Transmitter
User’s Manual
REV 5 – 03/2022
HDI INSTRUMENTS, LLC
7240 BRITTMOORE ROAD, SUITE 119, HOUSTON, TX 77041
+1 (713) 688-8555 PH | +1 (713) 688-2888 FAX
WWW.HDIGAUGES.COM
2
SECTION I
Systems General Information
A. General Information:
This manual describes the installation, operation, maintenance and calibration of
the HDI 1021/2021 Transducer Assembly. This manual will provide the user with
information necessary to properly utilize the instrument. Included in this manual
are all the necessary procedures to install and maintain this instrument properly.
The 1021 product includes HDI's Calibration Certificate and Certificate of
Compliance. The 2021 Series product include the third-party approval
(ATEX/IECEx/CSA) along with HDI's Calibration Certificate and Certificate of
Compliance.
For brevity, we will use the name "2021" to refer to both the 1021 and 2021
products. The 1021 and 2021 Series units are identical for purposes of this user's
manual, unless noted otherwise (E.G., third-party approvals).
B. Unpacking and Inspection:
Upon receipt account for all pieces on the packing list. If any items are missing,
immediately inform the freight forwarder. Inspect all items for damage. If any
items are damaged, immediately inform the freight forwarder and Houston Digital
Instruments, LLC.
C. Precautionary Information:
Assure all directions on the packages are followed during unpacking and handling.
Extra care should be taken to assure that the pressure sensor, which is mounted in
the transducer housing supplied with the system, is protected from contact with
any hard or sharp objects, i.e., screwdriver, fingernail, etc., during the installation
of the sensor. Any evidence of mishandling or abuse shall VOID the warranty (see
Section VIII Warranty for detailed coverage). Also avoid any extreme tightening
efforts, with a hammer, at installation.
D. Personnel Qualifications:
This equipment requires experienced personnel to handle, install and maintain. HDI
can provide technical schooling if required at their Houston facility or on-site.
HDI 1021/2021 4-20mA Transmitter
User’s Manual
REV 5 – 03/2022
HDI INSTRUMENTS, LLC
7240 BRITTMOORE ROAD, SUITE 119, HOUSTON, TX 77041
+1 (713) 688-8555 PH | +1 (713) 688-2888 FAX
WWW.HDIGAUGES.COM
3
SECTION II
Systems Description
A. Systems Description:
The transducer (sensor) is an embedded strain gauge housed in a stainless-steel
case. The strain gauge is commonly housed in either a hammer union or a flange.
Any style housing may be specified by the customer.
B. Systems Description:
a. Pressure Transducer:
2” 1502, 2" 2002, 2” 2202, and 1” NPT possible flanged housings
b. Cables:
A high-grade shipboard approved instrument cable with woven shield
is recommended to reduce noise interference. Other types of cable are
available at additional cost.
C. System Capacities:
a. Transducer:
Transducers are rated at full range. Units 10K and under are capable
of withstanding a 30% over pressurization without damage to the
system. 16K units are capable of withstanding a 10 percent over
pressurization without damage to the system. System capacities are
from 5K PSI to 30K PSI.
HDI 1021/2021 4-20mA Transmitter
User’s Manual
REV 5 – 03/2022
HDI INSTRUMENTS, LLC
7240 BRITTMOORE ROAD, SUITE 119, HOUSTON, TX 77041
+1 (713) 688-8555 PH | +1 (713) 688-2888 FAX
WWW.HDIGAUGES.COM
4
SECTION III
Installation
A. Components:
a. Transducer:
The transducer is to be mounted by the customer at the locations
deemed most suitable for such equipment.
b. Cables:
Maximum recommended cable length is 200'. Cable lengths, other
than standard, shall have been specified by the customer to the
factory in advance. Other cable types are available upon request.
Cabling will be installed using acceptable industry standards for such
installations.
B. Mounting Components:
a. Pressure Transducer:
The pressure system transducer comes from the factory as a complete
assembly and only requires mounting of the transducer housing using
standard practices for such installations. Note: Special care should be
taken to ensure that the transducer pill mounted in the center of the
transducer housing, is not allowed to make contact with any hard
and/or sharp object as the accuracy and the sensitivity could be
affected. The transducer pill is vulnerable to this type of contact. Any
evidence of mishandling or abuse shall void the warranty. We have
installed an “orifice plate” to help minimize direct contact; in doing so,
regular cleaning should be performed to increase longevity with the
above precautions.
HDI 1021/2021 4-20mA Transmitter
User’s Manual
REV 5 – 03/2022
HDI INSTRUMENTS, LLC
7240 BRITTMOORE ROAD, SUITE 119, HOUSTON, TX 77041
+1 (713) 688-8555 PH | +1 (713) 688-2888 FAX
WWW.HDIGAUGES.COM
5
SECTION IV
Theory of Operation
A. Pressure System:
The major components of this system are the transducer and the communications
link (cable). The transducer utilizes a four active arm Wheatstone Bridge Strain
Gauge which, when excited by the current source, will produce an electrical signal
that is proportional to pressure applied to it. The cabling serves as an interconnect
for the transducer, taking the excitation power in and carrying away the signal.
B. Factory Preset Calibration:
The HDI 2021 is a digital electronic pressure measurement device designed
specifically for Oilfield applications. This system has been factory preset and will not
require periodic calibration as with the previous version of the HDI 2021 or to our
similar product line, HDI 2400 Pressure Gauge Systems.
The HDI 2021 is based on a "Strain Gage" design concept. The calibration of the
strain gauge is similar to tuning a stringed instrument. It is necessary to
understand the system is based on small resonant electronic signals.
The baseline for calibration is the current excitation across the bridge. This is preset
at the factory and cannot be changed.
SECTION V
Maintenance
A. Guidelines:
First, maintain the integrity of the cable and visually check for abuse. Second,
assure the system is cleaned and checked periodically for damage following our
listed precautions. Last of all, set a schedule for periodic calibrations by Houston
Digital Instruments, if required.
HDI 1021/2021 4-20mA Transmitter
User’s Manual
REV 5 – 03/2022
HDI INSTRUMENTS, LLC
7240 BRITTMOORE ROAD, SUITE 119, HOUSTON, TX 77041
+1 (713) 688-8555 PH | +1 (713) 688-2888 FAX
WWW.HDIGAUGES.COM
6
B. Schematic Drawing / Parts List:
HDI 1021/2021 4-20mA Transmitter
User’s Manual
REV 5 – 03/2022
HDI INSTRUMENTS, LLC
7240 BRITTMOORE ROAD, SUITE 119, HOUSTON, TX 77041
+1 (713) 688-8555 PH | +1 (713) 688-2888 FAX
WWW.HDIGAUGES.COM
7
SECTION VI
Certification
A. CSA Certificate
HDI 1021/2021 4-20mA Transmitter
User’s Manual
REV 5 – 03/2022
HDI INSTRUMENTS, LLC
7240 BRITTMOORE ROAD, SUITE 119, HOUSTON, TX 77041
+1 (713) 688-8555 PH | +1 (713) 688-2888 FAX
WWW.HDIGAUGES.COM
8
B. DNV Certificate
HDI 1021/2021 4-20mA Transmitter
User’s Manual
REV 5 – 03/2022
HDI INSTRUMENTS, LLC
7240 BRITTMOORE ROAD, SUITE 119, HOUSTON, TX 77041
+1 (713) 688-8555 PH | +1 (713) 688-2888 FAX
WWW.HDIGAUGES.COM
9
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