Aplisens AS-dP Bedienungsanleitung

USER’S MANUAL

DIFFERENTIAL PRESSURE TRANSMITTER

AS-dP

EN.IO.AS.dP

NOVEMBER 2021

Revision 01.A.001

APLISENS S.A., 03-192 Warsaw, Morelowa 7 St.

tel. +48 22 814 07 77; fax +48 22 814 07 78

www.aplisens.com, e-mail: export@aplisens.com

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

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.

EN.IO.AS.dP 
 
 
Revision 01.A.001/2021.11 
TABLE OF CONTENTS 
INTRODUCTION..........................................................................................5
SAFETY.......................................................................................................5
TRANSPORT AND STORAGE....................................................................5
1. Delivery check........................................................................................................................5 
2. Transport................................................................................................................................5 
3. Storage and use.....................................................................................................................5 
GUARANTEE ..............................................................................................5
IDENTIFICATION.........................................................................................6
1. Manufacturer address ............................................................................................................6 
2. Transmitter identification ........................................................................................................6 
3. CE mark, declaration of conformity.........................................................................................6 
INSTALLATION AND CONNECTION..........................................................7
1. General recommendation.......................................................................................................7 
2. Connection with PD connector ...............................................................................................7 
3. Earthing..................................................................................................................................7 
POWER SUPPLY ........................................................................................8
OPERATION................................................................................................8
1. Setting of measurement range width and zero point...............................................................8 
MAINTENANCE...........................................................................................8
1. Periodic inspections ...............................................................................................................8 
2. Cleaning washing...................................................................................................................8 
2.1. Diaphragm cleaning........................................................................................................9 
3. Repair ....................................................................................................................................9 
4. Returns ..................................................................................................................................9 
SCRAPPING, DISPOSAL............................................................................9
HISTORY OF REVISIONS...........................................................................9
 

EN.IO.AS.dP

Revision 01.A.001/2021.11 5

1. 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 wher-

ever the static pressure is not high. Typical applications include: heat exchanger stations, district heat-

ing networks. The transmitters meet the requirements of EU directives in accordance with the Decla-

ration of Conformity.

2. 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 instruc-

tions 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 thedevice is operated in a mannernot consistent with its intendedpurpose;

−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;

3. TRANSPORT AND STORAGE

3.1. 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

3.2. Transport

Transport of transmitters shall be carried out with the use of covered means of transport, in original

packages with diaphragm provided with protection. Thepackaging shall be protected againstmovement

and direct impact of atmospheric factors.

3.3. Storage and use

Transmitters shall be stored in a factory packaging, in a room without vapours and aggressive sub-

stances, protected against mechanical impact.

Allowable storage and use temperature range

•AS-dP -25 … 80°C (-13 … 176°F);

4. GUARANTEE

General terms and conditions of guarantee are available on the manufacturer's website:

https://aplisens.com/ogolne_warunki_gwarancji.html

EN.IO.AS.dP

6 Revision 01.A.001/2021.11

5. IDENTIFICATION

5.1. Manufacturer address

APLISENS S.A.

03-192 Warsaw

Morelowa 7 St.

Poland

5.2. 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.

5.3. 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.

Logo and name of manufacturer

CE mark

Manufacturer’s address

QR code

Transmitter, electrical and process connection type

Transmitter model ID

Transmitter serial number

Measuring range

Supply voltage values

Output signal

Permissible range of ambient temperature

Permissible static Pressure

IP protection rating

Year of production

Note about the obligation to read the manual

//The lower part of

the nameplate//

Special execution

EN.IO.AS.dP

Revision 01.A.001/2021.11 7

6. INSTALLATION AND CONNECTION

6.1. 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.

6.2. 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 assem-

bled 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.

Voltage version

Current version

Connector number

Connector type

Connector number

Connector type

VOLTAGE

Not supported

SHIELDED CABLE

Figure 1. Transmitter connection diagram.

6.3. 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.

EN.IO.AS.dP

8 Revision 01.A.001/2021.11

7. 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].

8. 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.

8.1. Setting of measurement range width and zero point

Unscrew the electrical connection to access the potentiometer knobs. Connect and power the transmit-

ter 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).

9. MAINTENANCE

9.1. 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 looseningand

leakage) and electrical connections (checking the reliability of connections and the condition of seals

and glands).

9.2. 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.

EN.IO.AS.dP

Revision 01.A.001/2021.11 9

9.2.1. 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.

9.3. Repair

Faulty or non-operational transmitter shall be provided to the manufacturer or an authorized representa-

tive.

9.4. 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.

10. SCRAPPING, 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.

11. HISTORY OF REVISIONS

Revision

No.

Document

revision

Description of changes

Edition F/2017.11

First version of the document. Prepared by DKD.

01.A.001/2021.11

Initial document version. Prepared by DBFD.

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