Microsensor MPM483DM Manual de usuario
MPM483DM
Operation Manual
Table of Contents
1 Introduction .......................................................................................3
2 Specifications....................................................................................4
3 Outline Structure and Installation.......................................................5
4 Electrical Connection.........................................................................8
5 Unpacking Componets and Storage ................................................ 11
6 Supporting Software........................................................................13
7 Transmitter Parameter Settings and Usage......................................14
8 Operation Maintenance and Responsibility......................................18
AppendixA..........................................................................................20
The company reserves the right to modify this manual due to product technology
and process updates. Further notice will not be made for any changes.
Please note the latest version of this manual.
The company reserves the right of final interpretation of this manual.
Version of this manual: V1.0.
3
Thank you very much for selecting Micro Sensor’s product, MPM483DM
intelligent digital display pressure transmitter is a precision instrument, in
order to better use this product, it is recommended that you read this
manual carefully before using the product.
1Introduction
MPM483DM intelligent digital display pressure transmitter is a
high-precision, high-stability intelligent digital display transmitter product
launched by our company. It is suitable for real-time pressure
measurement and display. The product adopts the latest application
results of special wide temperature liquid crystal display and digital
technology in the field of sensor manufacturing, combined with advanced
piezoresistive pressure transmitter design and manufacturing technology,
and carefully built by precision digital temperature compensation and
nonlinear correction technology to ensure high accuracy and high
stability of pressure measurement.
MPM483DM intelligent digital display pressure transmitter has passed
the intrinsic safety and flameproof certification, in line with the national
standard GB/T 3836.1 "Explosive atmospheres - Part 1: Equipment -
General requirements" suitable for general explosive gas atmospheres.
The flameproof type complies with the provisions of GB 3836.1-2010
"Explosive atmospheres - Part 1: General requirements for equipment"
4
and GB 3836.2-2010 "Explosive atmospheres - Part 2: Equipment
protected by flameproof enclosure "d". Explosion-proof mark: Exd IICT6
Gb.
Intrinsically safe products meet the relevant requirements of GB/T
3836.1-2021 "Explosive atmospheres - Part 1: Equipment - General
requirements" and GB/T 3836.4-2021 "Explosive atmospheres - Part 4:
Equipment protected by intrinsically safe type "i", the explosion-proof
mark is Exia IICT4 Ga, intrinsically safe transmitters are suitable for
areas 0, 1 and 2 where there is an explosive mixture of IIA, IIB, IIC,
T1~T4 group flammable gases, steam and air mixture.
2 Specifications
Measurement Range:-1bar…0bar～100mbar…1000bar
Overpressure：1.5 times FS or 1100bar(minimum value is valid)
Comprehensive accuracy：
Pressure
Type
Range
Accuracy
Gauge (G)
0mbar~100mbar＜X＜200mbar
±0.5FS%
200mbar≤X≤700mbar
±0.25FS%
700mbar＜X≤35bar
±0.25FS%(default)
±0.1FS%
-1bar~-350mbar＜X≤2bar
±0.5FS%
-1bar~-350mbar＜X＜2bar~35bar
±0.25FS%
Absolute (A)
0mbar~700mbar＜X≤1bar
±0.5FS%
Table 1
5
Power Supply: 8V~28V DC (The intrinsically safe type is powered by a
safety barrier)
Output Signals: analogue 4mA~20mA DC (2-wire); digital RS485
interface
Display Range: -19999 ~ 19999 (4 and half digits LCD display)
Load Resistance: (U-8V) /0.02A (Ω) (U is the supply power)
Compensated Temperature: -10℃~ 70℃
Application Temperature: -30℃~ 80℃(non-explosive type and intrinsic
safety type)
-30℃~ 60℃(flameproof type)
Storage Temperature: -40℃~85℃
Insulation Resistance: 100MΩ@100V
Long-term Stability: ±0.25%FS/year
Vibration: 10g, 20Hz~2000Hz
Shock：20g, 11ms
Housing Protection: IP65
3 Outline Structure and Installation
3.1 Outline dimensions unit:mm
1bar＜X≤10bar
±0.25FS%
10bar＜X≤1000bar
±0.25FS%(default)
±0.1FS%
Sealed
gauge (S)
35bar＜X≤1000bar
±0.25FS%(default)
±0.1FS%
6
34
(120)
SW27
(105)
( 68)
3.2 Installation
3.2.1 Check before Installation
Before installing the transmitter, please pay attention to:
a) Whether the pressure of the measured point will exceed the
measuring range of the transmitter.
b) Whether the measured medium is suitable for the wetted parts of the
transmitter.
c) Whether the measured medium will block the impulse hole of the
transmitter.
3.2.2 Installation Method
In general, the transmitter should be mounted upwards perpendicular to
the horizontal orientation (inverted mounting may affect the zero output
of the transmitter)
The pressure interface of the standard MPM483DM pressure transmitter
Fig 1
7
is M20×1.5 male thread, and the sealing gasket should be used for
installation; The pressure interface of the flush diaphragm MPM483DM
pressure transmitter is G1/2 male thread with gasket, and the effective
depth of the G1/2 internal thread of the user-mounted interface should
not be less than 15mm.
The transmitter can be mounted directly on the flange joint of the
measuring pipe. In order to facilitate installation and maintenance, a
globe valve should be installed between the flange joint and the pipeline
as shown. When installing, please pay attention to:
a) Do not poke the hole with a sharp object or hard object, and do not
press the diaphragm with your hands, etc. to avoid damaging the
diaphragm.
b) Flush diaphragm pressure transmitter interface with plastic protective
cap, do not remove it unless installed and used, so as not to damage
the diaphragm.
c) Do not seal the connection with the G1/2 male thread of the pressure
interface of the flush diaphragm transmitter by winding tape, which
may generate stress that affects the measurement stability or even
damages the transmitter.
d) When installing and using this product in areas where lightning often
occurs, it is recommended that it is best to install lightning protection
device into the line.
8
Note: It is strictly forbidden to poke the pressure hole or press the
diaphragm with hard objects such as iron wire and steel needle to avoid
damage to the transmitter.
4 Electrical Connection
4.1 Connection Steps
a) Unscrew the back cover of the electronic shell and insert the cable
through the cable hole with a sealing sleeve (the cable with an outer
diameter of φ7.4mm matches the cable envelope well);
b) Connect the cable conductor to the terminal block according to the
position shown in the electrical connection diagram, and tighten the
screws;
c) Finally tighten the cable gland nut and back cover (to prevent moisture
from entering the transmitter).
4.2 Terminal Definition
+
A-
B+ -
A
+ - + -
Fig 2
9
Table 2
4.3 Intrinsically safe transmitter electrical connection method and
precautions:
a) Product installation should be carried out in accordance with the
relevant provisions of GB/T3836.15-2017 "Explosive Atmospheres
Part 15: Design, Selection and Installation of Electrical Installations".
And the installation is carried out by professionals. Products that have
passed explosion-proof certification are not allowed to replace or
change components and structures that affect explosion-proof
performance at will.
b) This product must be used with the explosion-proof certificate safety
barrier, and the explosion-proof mark level of the safety barrier must
Wiring definition
terminal
definition
Terminal
definition
+/A
V+
+/A
V+
-/B
+OUT
-/B
+OUT
RS485A
RS485B
10
not be lower than the explosion-proof mark of the transmitter. The
safety barrier shall be installed in a safe place, and its installation, use
and maintenance must comply with the safety barrier instruction
manual.
c) When this product is used in hazardous places, the wiring diagram is
shown in the figure below, and the product shell must be reliably
grounded during installation.
d) Intrinsically safe type use warning: the product shell material is
aluminum, the base is stainless steel and other metal materials, when
used in zone 0, to prevent ignition hazard caused by impact or friction
Dangerous area
V+ Power
Load
Safe
barrier
Safe area
8～28V DC
RS485
interface
+OUT
RS485A
RS485B
P
I
Fig 3
Intrinsically safe transmitter explosion-proof mark：Ex ia IIC T4 Ga
Transmitter with Flameproof mark: Ex d IIC T6 Gb
Transmitter intrinsically safe parameters：
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