Chemitec METER Manuel utilisateur

METER

Ultrasonic level transmitter

Factory Test Certificate

In conformity to the company and check procedures I certify that the equipment:

METER................... Production and check date: ................................

Serial n. .......................................................

is conform to the technical requirements on Technical Data and it is made in conformity to the Company procedure

Quality Control Manager .................................

Warranty

Products supplied by the Company are guaranteed for a period of 12 (twelve) months from delivery date according to the

conditions specified in our sale conditions document.

The Company can choose to repair or replace the Product.

If the Product is repaired it will mantein the original term of guarantee, whereas if the Product is replaced it will have 12

(twelve) months of guarantee.

The warranty will be null if the Client modifies, repair or uses the Products for other purposes than the normal conditions

foreseen by instructions or Contract.

In no circumstances shall the Company be liable for direct, indirect or consequiential or other loss or damage whether

caused by negligence on the part of the company or its employees or otherwise howsoever arising out of defective goods

Technical Data

Housing material: PC or Al / PP wetted part

(PVDF for ATEX certified vers.)

Mechanical installation: 2”GAS M (PP flange DN80 opt.)

Protection degree: IP67

Electrical connection: Internal push connectors

Working temperature: -30 ÷ +70°C; +80°C non-continuous

-20 ° to +60 ° C for ATEX certified vers.

Pressure: from 0,5 to 1,5 bar (absolute)

Power supply: 2-wire: 20÷30 Vdc / 4-wire: 24Vdc

Power consumption: 2-wire max 0,6W / 4-wire max 1,5W

Analog output: 4÷20mA, max 750ohm (4-wire)

Relays output: (4-wire only) n°2 3A 230Vac (n.o.)

Digital communication:MUDBUS RTU for 4-wire vers.

(opt.) HART for 2-wire vers.

Max measure range: max 0.25÷5m

max 0.4÷8m

[In case of non perfectly reflecting surfaces, the maximu distance

value will be reduced]

Blind distance: 0,25m (5m vers.) / 0,40m (8m vers.)

Temperature compensation: digital from -30 to 80°C

Accuracy: ±0,2% (of the measured distance)

not better than ±3mm

Resolution: 1mm

Calibration: 4 buttons or by HART/MODBUS RTU

Warm-up: 5 minutes typical

LCD Display: Plug-in display/keyboard 4 buttons matrix LCD

Ex-proff: ATEX II 1/2G Ex ia II C T6

METER - Safety / Mechanical installation

2. INSTALLATION

2.1 MECHANICAL DIMENSIONS

The METER transmitter has the 2 "GAS M threaded, equipped with 2" BSP/ PP fixing bolt. DN80 PN6 UNI 1092-1/PP

flange is available (optional accessory).

F/G/M/N housing codes U housing code

1. SAFETY

1.1 Installation precaution

a) Installation shall only be performed by qualified personnel and in accordance with local governing regulations.

b) Make sure that the working temperature is between -30 and +70 ° C, +80 ° C non-continuous

(ATEX versions: -20÷+60°C).

c) Install the transmitter in a its physical characteristics and housing/sensor construction materials compatible environment.

d) The transmitter must be used safety warnings observance.

e) Improper transmitter use would cause serious damage to people, to the product and connected equipment.

DN80 PN6 UNI 1092-1/PP flange

(optional accessory)

Fig.1 Fig.2 Fig.3

Anticondensation

filter (M/N code)

The non intrusive system application is now preferred in the level measurements field. For this reason the Company

developed the METER unity to best meet the "GENERAL-PURPOSE" application requests. The METER unit offers,

together with its compact size, a complete versions range that makes the METER very versatile for the most varied

applications, including areas with explosion hazard and chemically aggressive environments. METER is an ultrasonic level

transmitter, temperature-compensated and suitable for connection with MODBUS RTU (only 4 wires vers.) or HART (option

only for 2-wire vers.) acquisition systems. METER is a compact unit which in addition to an analog output includes two freely

addressable relay (only 4 wires vers.).

Non-contact level measurements

Suitable for liquids and granulates level

measurement

Integrated digital temperature sensor

to compensate the measure

HART or MODBUS RTU com. protocol

24Vdc power supply

Mechanical protection: IP67 / IP68 (sensor)

Output: 1 4÷20mA analog output

2 relays output (4-wires vers.)

ATEX II 1/2G Ex ia II C T6

METER

ULTRASOUND LEVEL TRANSMITTER

DATA SHEET

METER - Connections and Configuration

3. CONNECTIONS

3.1 Wiring

1) Separate the engine control cables or power cables from the METER connection cables..

2) Open the cap by unscrewing.

3) Lead the cables into the transmitter through the glands.

4) Do not use sleeves terminals, because they might interfere with the VL601 module insertion

5) Close the cap and tighten the cable glands.

3.2 Humidity infiltrations

4. CONFIGURATION MODES

The METER have 2 configuration/calibration modes:

- via digital communication:

via MODBUS RTU, by PC, for 4-wires versions

via HART, by Hand-Held or PC, for 2-wires versions (optional)

- via VL601 programming module

4.1 Via MODBUS RTU

4.1.14-wires METER; MODBUS RTU PC connection (fig.21)

1) METER4____ or METER8____ (1) with MODBUS RTU communication protocol

2) USB/RS485 interface module, cod.694A004A

3) MODBUS RTU communication S/W, cod.010F105A (3), for METER transmitter

With this software is possible:

- connect, by selecting the UID address, the METER transmitters in MODBUS RTU network

- read on your PC monitor all measures in reading and METER operation data

- programming all METER configuration parameters

- storing on files, data logger function; METERmeasures in reading and operating states

Fig.19

2-WIRE VERSION 4-WIRE VERSION

Fig.17 Fig.18

To avoid the humidity infiltration inside the housing is recommended:

- for electrical connections, use a cable with a 6÷12mm outer diameter and

fully tighten the M20 cable gland

- fully tighten the cap

- position the cable so that it forms a downward curve at the M20 output

(Fig. 20); in this way the condensation and/or rain water will tend to drip

from the curve bottom

For installations with a strong humidity/vapor presence the version with

the optional anti-condensation filter (cod.M/N) is available Fig.20

ATEX 2-WIRE VERSION

The immunity to electromagnetic interference complies with Directives

METER

ULTRASOUND LEVEL TRANSMITTER

DATA SHEET

METER - Configuration

4.2 Via HART

4.2.1 2-wires METER; HART Hand Held connection or HART PC/MODEM (fig.23)

1) METER-___, METER0___, METER2___, METER7___, with HART communication protocol

2) 250ohm resistence

3) HART MODEM

4) HART communication S/W, cod.010E105A (for PC HART MODEM only)

5) HART HAND-HELD

Fig.23

Fig.21

4.3 via VL601 configuration

The VL601 programming module can be mounted and removed from the

METER without affecting the unit operation. Unscrewing the cap, the VL601

module can be mounted (by clockwise rotation until it clicks) or dismounted

(by rotation counterclockwise) as shown in Fig.21. The VL601 module is

equipped with matrix LCD.

displayed at the bottom indicates the correct echo signal reception

displayed at the top alerts that there is a generic error; press to show

the message that indicates the present error type.

The METER returns automatically to RUN mode.

CHEMITEC s.r.l.

Via Isaac Newton 28 - 50018 Scandicci (FI)

Tel. +39 055 7576801 fax +39 055 756697

Web site: www.chemitec.it

E-mail: sales@chemitec.it

METER

ULTRASOUND LEVEL TRANSMITTER

DATA SHEET

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