APLISENS AS-dP Differential Pressure Transmitter User Manual

APLISENS AS-dP Differential Pressure Transmitter

Product Information

The AS-dP Differential Pressure Transmitter is a device manufactured by APLISENS S.A. It is designed to measure and transmit differential pressure readings. The transmitter is equipped with a unique QR code or ID number that allows quick access to the manufacturer’s website for documentation such as the user’s manual, declarations of conformity, and copies of certificates. The manufacturer emphasizes the importance of following the information contained in the documentation to ensure the safety and proper functioning of the device. It is essential to install and operate the transmitter correctly, maintain its technical condition, and use it for its intended purpose.

Qualified personnel with the necessary authorizations should carry out the installation. The installer is responsible for complying with the manual, electromagnetic compatibility, safety regulations, and standards specific to the type of installation. Safety precautions must be observed during installation, operation, and inspections to prevent harm to personnel.

In case of malfunction, it is advised to disconnect the device and send it to the manufacturer for repair. The transmitter should not be installed or used in unfavorable conditions that may pose risks such as mechanical impacts, excessive shocks, vibration, temperature fluctuations, water vapor condensation, dusting, or icing. The manufacturer may introduce changes to the product’s manufacturing process before updating the paper version of the manual. The most up-to-date manuals are available on the manufacturer’s website.

Product Usage Instructions

Introduction

• The introduction section provides an overview of the AS-dP Differential Pressure Transmitter.

Safety

• This section emphasizes the importance of following the information in the documentation for ensuring safety and proper device functionality.

Transport and Storage

Delivery check

• Before using the transmitter, perform a delivery check to ensure it is in good condition.

Transport

• Follow the recommended procedures for transporting the transmitter safely.

Storage and Use

• Store the transmitter properly when not in use. Follow the guidelines provided for safe storage and usage.

Identification

• The identification section explains the unique QR code or ID number associated with the transmitter, which provides access to relevant documentation on the manufacturer’s website.

INTRODUCTION

PRODUCT CODE

see: (➔ Transmitter identification).

The QR code or ID number identifies the transmitter and provides quick access to the following documentation on the manufacturer’s website: user’s manual, declarations of conformity and copies of certificates.

AS-dP

• ID:0048 0001 0000 0000 0000 0000 0001 90
• https://www.aplisens.pl/ID/004800010000000000000000000190

Scan

Symbols used

Symbol/ Description

• Warning to proceed strictly in accordance with the information contained in the doc-umentation in order to ensure the safety and full functionality of the device.
• Information particularly useful during installation and operation of the device.
• Information on disposal of used equipment.

BASIC REQUIREMENTS AND SAFE USE

The manufacturer will not be liable for damage resulting from incorrect installation, failure to maintain a suitable technical condition of the device or use of the device other than for its intended purpose. Installation should be carried out by qualified staff having the required authorizations to install electrical and I&C equipment. The installer is responsible for performing the installation in accordance with manual as well as with the electromagnetic com-patibility and safety regulations and standards applicable to the type of installation. In systems with I&C equipment, in case of leakage, there is a danger to staff due to the medium under pressure. All safety and protection requirements must be ob-served during installation, operation and inspections. If a malfunction occurs, the device should be disconnected and handed over to the manufacturer for repair.

In order to minimize the risk of malfunction and associated risks to staff, the device is not to be installed or used in particularly unfavourable conditions, where the fol-lowing hazards occur:

• possible mechanical impacts, excessive shocks and vibration;
• excessive temperature fluctuation;
• water vapour condensation, dusting, icing.

Changes made to the manufacturing of products may be introduced before the paper version of the manual is updated. The up-to-date manuals are available on the manufacturer’s website: www.aplisens.com.

INTRODUCTION

The AS-dP differential pressure transmitters are used for level measurement in closed tanks, as well as for differential pressure measurement on back pressure elements such as filters, orifices and wherever the static pressure is not high. Typical applications include: heat exchanger stations, district heating networks. The transmitters meet the requirements of EU directives in accordance with the Declaration of Conformity.

SAFETY

• The installation and start-up of the device and any activities related to operation shall be carried out after thorough examination of the contents of user’s manual and the instructions related thereto;
• installation and maintenance should be carried out by qualified staff having the required authorizations to install electrical and measuring devices;
• the device shall be used according to its intended purpose in line with the permissible parameters specified on the nameplate (➔ Transmitter identification);
• the protection elements used by the manufacturer to ensure transmitter safety may be less effective if the device is operated in a manner not consistent with its intended purpose;
• before installing or disassembling the device, it is absolutely necessary to disconnect it from the power source;
• no repairs or alterations to the transmitter electronic system are permitted. Assessment of damages and possible repair may only be performed by the manufacturer or authorized representative;
• do not use instruments if damaged. In case of malfunction, the device must be put out of operation;

TRANSPORT AND STORAGE

Delivery check

After receiving the delivery, please refer to the general terms and conditions of contracts available on the manufacturer website: https://aplisens.com/ogolne_warunki_umow.html

Transport

Transport of transmitters shall be carried out with the use of covered means of transport, in original packages with diaphragm provided with protection. The packaging shall be protected against movement and direct impact of atmospheric factors.

Storage and use

Transmitters shall be stored in a factory packaging, in a room without vapours and aggressive substances, protected against mechanical impact. Allowable storage and use temperature range

• AS-dP -25 … 80°C (-13 … 176°F);

GUARANTEE

General terms and conditions of guarantee are available on the manufacturer’s website: https://aplisens.com/ogolne_warunki_gwarancji.html

IDENTIFICATION

Manufacturer address

• APLISENS S.A.
• 03-192 Warsaw
• Morelowa 7 St. Poland

Transmitter identification

Depending on the version of the transmitter, the nameplates may differ in the amount of information and parameters.

Table 1. Symbols appearing on the transmitter nameplate.

CE mark, declaration of conformity

The device has been designed to meet the highest safety standards, has been tested and has left the factory in a condition that is safe for operation. The device complies with the applicable standards and regulations listed in the EU Declaration of Conformity and has CE marking on nameplate.

INSTALLATION AND CONNECTION

General recommendation

Run the signal line “twisted pair” or “twisted pair shielded” in case of high electromagnetic interference. Avoid running near power cables and large power consumers. The equipment used with the transmitters should be resistant to electromagnetic interference from the transmission line in accordance with compatibility requirements.

Connection with PD connector

Loosen the screw at the top of the connector and the nut connecting the connection to the transmitter casing, the cable outlet can be set in any direction. It is advantageous to form the cable in the form of an eave loop in order to prevent the condensate from flowing towards the gland. Connect the wires according to the marking on the transmitter and Table 2 (depending on the version). A correctly assembled PD connection should have the following tightened: the gland nut, the nut of the connection to the steel case and the screw connecting both parts of the connection.

Table 2. Electrical connection of transmitter in current and voltage version.

Earthing

• Transmitters with PD connections have a ground terminal in the connector, which should not be used to realise protective earthing or to connect an equalising cable, it is only used for functional earthing.

POWER SUPPLY

Table 3:  Transmitter supply voltage.

• 8…39 V DC /Output signal 4…20 /mA 2 wires
• 13…30 V DC /Output signal 0…10 V DC /3 wires

where:

• Usup – voltage at the supply terminals of the 4…20 mA current loop [V].
• Umin – minimum supply voltage of transmitter
• RLmax- maximum power supply line resistance [Ω].

OPERATION

• Protect the transmitter against mechanical damage and flooding.
• Do not allow any sludge to form on the membrane. Carry out regular inspections.

Temperature range of measuring medium:

• -25 ÷ 120ºC – direct measurement;

• 120ºC – measurement using a pulse tube, e.g. for media with a temperature of 160ºC the length of the im-pulse tube should be at least 150 mm.

  • Isolation test voltage 110 V DC.

Setting of measurement range width and zero point

Unscrew the electrical connection to access the potentiometer knobs. Connect and power the transmitter according to the technical data. Apply a pressure equal to the lower limit of the measuring range and bring the output signal to 4 mA (0 V) by turning the “zero” potentiometer knob (turning it clockwise increases the output signal). After zeroing, set the pressure equal to the upper range limit and use the “range” potentiometer to bring the output current (voltage) to 20 mA (10 V). Check “zero” again and repeat the setting if necessary.

Attention

• The user, by means of potentiometers, has the possibility to adjust the “zero” and the range within the limits up to ±10%.
• For transmitters with output signal 0…10 V the “zero” should be set to 0.05 V (transmitters do not reach 0 V).

MAINTENANCE

Periodic inspections

Periodic inspections should be carried out in accordance with the standards binding for the user. During the inspection it is necessary to check the condition of pressure connections (absence of loosening and leakage) and electrical connections (checking the reliability of connections and the condition of seals and glands).

Cleaning, washing

In order to remove dirt from the external surfaces of the transmitter, wipe them with In order to remove dirt from the external surfaces of the transmitter, they should be wiped with a cloth dampened in water.

Diaphragm cleaning

• The only possible method of cleaning the transmitter membranes is to dissolve the sludge produced.
• Do not remove deposits and impurities from the transmitter diaphragms, which are formed during operation, mechanically using tools, since the diaphragms and the transmitter can be damaged.

Repair

• Faulty or non-operational transmitter shall be provided to the manufacturer or an authorized representative.

Returns

In the following cases, the transmitter should be returned directly to the manufacturer:

• need for repair;
• need for factory calibration;
• replacement of improperly selected/shipped transmitter.

SCRAPPING AND DISPOSAL

• Worn or damaged devices shall be scrapped in accordance with WEEE Directive (2012/19/EU) on waste electrical and electronic equipment or returned to the manufacturer.

HISTORY OF REVISIONS

Documents / Resources

| APLISENS AS-dP Differential Pressure Transmitter [pdf] User Manual
AS-dP Differential Pressure Transmitter, AS-dP, Differential Pressure Transmitter, Pressure Transmitter, Transmitter
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References

• Aplisens S.A. is one of the leading manufacturers of high quality process instrumentation.
• Aplisens S.A. is one of the leading manufacturers of high quality process instrumentation.
• APLISENS S.A. - Pressure transmitters, differential pressure transmitters, hydrostatic level probes, level transmitters.
• APLISENS S.A. - Pressure transmitters, differential pressure transmitters, hydrostatic level probes, level transmitters.
• Aplisens S.A. - Produkcja Przemysłowej Aparatury Pomiarowej i Elementów Automatyki.

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