ABUS Smart Pressure Transmitter User Manual
ABUS TECHNOLOGIES INC.
Flanged Diaphragm
DPT
Smart Pressure/DP Transmitter
User Manual
Type
WARNING
v This manual should be passed on to the end user.
v The contents of this manual are subject to change without prior notice.
v All rights reserved.
v ABUS gives no warranty of any kind with regard to this manual, including, but not limited to, fitness for
a particular purpose.
v If any question arises or errors are found, or if any information is missing from this manual, please
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inform your supplier or inform at info@abusek.com
v The specifications mentioned in this manual are limited to those for the standard type under the
specified model number break-down and do not necessarily apply for customized instruments.
v Please note that changes in the specifications, construction, or component parts of the instrument
may not immediately be reflected in this manual at the time of change.
v If the customer or any third party is harmed by the use of this product, ABUS assumes no
responsibility for any such harm owing to any defects in the product which were not predictable, or for
any indirect damages.
v The integral modules specifically HART module are not manufactured by ABUS.
Although Warning hazards are related to personal injury, and Caution hazards are associated with
equipment or property damage, it must be understood that operation of damaged equipment could, under
certain operational conditions, result in degraded process system performance leading to personal injury
or death. Therefore, comply fully with all Warning and Caution notices.
Information in this manual is intended only to assist our customers in the efficient operation of our
equipment. Use of this manual for any other purpose is specifically prohibited and its contents are not to
be reproduced in full or part without prior approval of Technical Communications Department, ABUS
Technologies.
HEALTH AND SAFETY
To ensure that our products are safe and without risk to health, the following points must be noted:
1. The relevant sections of these instructions must be read carefully before proceeding.
2. Warning labels on containers and packages must be observed.
3. Installation, operation, maintenance and servicing must only be carried out by suitably trained
personnel and in accordance with the information given. Any deviation from these instructions will
transfer the complete liability to the user.
4. Normal safety precautions must be taken to avoid the possibility of an accident occurring when
operating in conditions of high pressure and/or temperature.
5. Chemicals must be stored away from heat, protected from temperature extremes and powders kept
dry. Normal safe handling procedures must be used.
6. When disposing of chemicals ensure that no two chemicals are mixed.
Safety advice concerning the use of the equipment described in this manual or any relevant
hazard data sheets (where applicable) may be obtained from the Company address on the back cover,
together with servicing and spares information.
ABUS TECHNOLOGIES INC.
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2. Presentation
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CATALOGUE
Contents Page No.
1. Introduction 4
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1. Structure Overview
2. Working Principle
3. Dimensions
4. Technical Parameters
1. Push Button Functions
3. Electrical Connections 9
4. Ordering Details 11
5. Ordering Details (Micro Differential Transmitter) 12
6. Ordering Details (M94DL) 14
7. Safety Precautions 15
8. Warranty 15
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1. INTRODUCTION
The ABUS DP Series features high performance with high degree of precision.
Differential pressure measurement can be used to measure flow, level, density and viscosity.
This versatile primary measurement can provide high accuracy results even in harsh
environmental conditions. It is considered on the basis of the proven and reliable sensing
technology and extensive digital technology.
16-bit single chip is adopted as its core element, with its powerful function and highspeed processing capacity, ensures the excellent accuracy with stability of the transmitter. The
whole design frame focuses on its reliability, stability and high precision, meeting the growing
demand of on-site industrial use. To achieve this goal, digital signal processing is used by the
software to ensure minimum disturbance effects and zero point stability. Meanwhile, it has the
Zero Stability Capacity (ZSC) and Temperature Supplementing Capacity (TSC).
The powerful interface guarantees an excellent interaction rarely needing manual
operator. Keypad operation can accomplish the basic settings of zero, range setting, damping
setting under the circumstances of no standard pressure, and proving to be very convenient for
the on-site adjustments.
By connecting with module RS485, it can realize the remote transmission of digital signal
or the building up of RS485 industrial LAN.
Transmitter has an optional HART module. Transmitter added the HART module has
HART communication capabilities, with the conventional operations being controlled by the
manual operator. Transmitter can be widely used in the sectors such as petroleum, chemical,
iron & steel, power supply, light industry and environmental protection, capable of realizing the
measurement of various pressures, differential pressures, flows and fluids, can adapt for all kinds
of harsh and hazardous environment and corrosive processes.
2. PRESENTATION
2.1 Structure Overview
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M94
Description
1 Cover 14 Cover lock bolt
2 O-ring 15 Sensor
3 Wiring terminals cover 16 O-ring
4 Mounting bolts of circuit board 17 O-ring
Thunder-proof wiring circuit
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board
6 Name plate 19 Zero alignment plate
7 Housing body 20 Housing body lockup bolt
8 Meter head 21 Parallel wires
9 Mounting bolts of meter head 22 Circuit board
18 Position code plate
10 Meter head cover 23 Nut M10
11 Drain/ vent valve 24
12 Template 25 Welded connector (optional)
13 Bolts M10 26 Flange (optional)
Integrated 3-valve group
(optional)
2.2 Working Principle
As indicated in the working principle diagram, the outside pressure or differential pressure
will cause some change in the sensor capacitance value. Through the digital signal conversion, it
will change into the frequency signal, which is sent to the microprocessor. After the calculation by
microprocessor, a current control signal will be output to the current control circuit, converted into
analogue 4-20mA current output. Meanwhile, the microprocessor is responsible for the
interactive and other actions (display and setting). The communication port used for digital
communication needs the special port of our company. HART module will realize the transmitter
HART communication.
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