SPRIANO Smart Pressure Transmitter Series SST76

SPRIANO Smart Pressure Transmitter Series SST76

Pemancar tekanan SMART seri SST76 adalah instrumen berbasis mikroprosesor yang menggabungkan keunggulan sinyal analog (4-20mA) bersama dengan fleksibilitas komunikasi digital menggunakan protokol HART®. Mereka dapat dikonfigurasi dari jarak jauh oleh terminal genggam universal (HHT) atau oleh PC dengan antarmuka khusus. Selain itu, dimungkinkan untuk mengkonfigurasi instrumen secara lokal (nol dan rentang) dengan menggunakan 4 tombol dan untuk menampilkan data pada layar LCD lebar. Pemancar SST76, lengkap dengan diafragma dalam AISI 316, mengukur tekanan relatif dengan bentang dari 0,023 hingga 201bar. Elemen pengukur tekanan adalah sensor piezoresitif. Dimungkinkan untuk memilih berbagai sensor untuk memenuhi semua kondisi proses.

Sel pengukur Spriano berisi sensor dan mentransmisikan tekanan ke elektronik. Penyimpangan termal dikompensasi dengan menggunakan sinyal suhu yang dihasilkan oleh termistor PTC yang terintegrasi dalam sensor itu sendiri. Berdasarkan bacaan ini mikroprosesor menghasilkan output analog 4-20mA “sistem dua kabel” dan menampilkan pengukuran tekanan pada LCD.

Beberapa karakteristik utama dari pemancar mikroprosesor ini, adalah:
– Jangkauan luas.
– Kompensasi suhu otomatis.
– Komunikasi digital menggunakan protokol HART®.

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Description

Spesifikasi SPRIANO Smart Pressure Transmitter Series SST76 :

  • Merk : SPRIANO
  • Model : SST76

Functional Data

With reference to the following, please note these definitions:
Nominal range: (referred to the sensor mounted in the instrument) the measured pressure range for which the sensor has been designed. Defined as a minimum and maximum value.
Nominal span: the interval between the minimum and maximum values of the sensor nominal range. The span is a single number.
Measuring range: the minimum and maximum range values for which the transmitter is to be calibrated.
Measuring span: the interval between minimum and maximum values of the measuring range.
Input scale initial value or zero input: minimum pressure value within in the measuring range.
Input full scale value: maximum pressure value within in the measuring range.

Transmitter Parameters

The parameters that are available for display and setting are:
Measuring span: possibility to change from 3,3% to 100% of the nominal span.
Zero adjustment: digital calibration ± 15%.
Low/upper range values: they can be set within the nominal range provided that the span > minimum span.
Damping: digitally adjustable from 0 to 60 sec.
(minimum response time ~ 0,1 sec.).
Reverse output: automatically obtained via software.
Transfer function: linear/square root via software.
Self-test: in case of malfunction the analog output is
forced to the fail-safe state 3.85 mA or 21 mA.
Measuring units: 18 different pressure units or % of the
measuring span, selectable via software.

Physical Characteristics

Power supply: 12,5-30 Vdc
Output signal:
Analog 4-20mA, 2 wires.
Digital using HART® protocol
Response time: <256 ms (Std Hart®)
Measured value update frequency:
4-20 mA + Hart® output: 1s
Hart® output only: 500 ms (on request)
Polling time:
4-20 mA + Hart® output: 800 ms
Hart® output only: 500 ms (on request)

Ambient Conditions

Temperature:
Process fluid: -40 ÷ +80°C (with finned arm: up to 125°C; with syphon: up to 210°C; with capillary: up to 283°C)
Housing: -40 ÷ +80°C
Handling and storage: -40 ÷ +90°C
Relative Humidity: 0 a 100% R.H.
LCD display reading: -10 ÷ +65°C

Performances

Output resolution: < 0,01% nominal range (at 20°C)
Total accuracy2
: <0.07%FS (0 ÷ 80°C)
<0.2%FS (0 ÷ -40°C)
Dead band: negligible
Display resolution: 0.1

Influence Of Operating Conditions

Thermal drift: referred to -10 ÷ +80°C range.
• Zero: ± 0,1%/10°C.
• Span: ± 0,1%/10°C at nominal range.
Long term stability: <0.1%FS/year
Power supply effect:
Negligible between 12.5 and 30 Vdc.

Physical Specifications

Housing: die cast aluminum alloy EN AW-6082 finished with epoxy resin (RAL 5014). It is dust and sand tight and protected against sea wave effects as defined by IEC IP66. Suitable for tropical climate operation as defined by DIN 50015.
Covers O-ring: EPDM.
Filling fluid: silicone oil.
Nameplate: stainless steel, fixed on housing.
Calibration
Standard: at nominal range, direct action, linear.
Optional: at the conditions specified with the order.
Electrical connections: two cable entries on electronic
housing: 1/2” NPT and cable gland PG 13.5 for 7 to 12mm diameter cable.
Terminal board: 2 terminals for signal wiring up to 1.5mm2
(14 AWG). Connection for ground and cable shield.
Mounting position: any position.

Process Wetted Parts

Process connections: see ordering information table.
Diaphragm: see ordering information table.

Options

Finned extension, siphon or remote mounting with
capillary: for working temperature higher than 80°C up
to 283°C.
Bracket: for 2 inch pipe mounting.
Degreasing for oxygen service.
Stainless Steel Housing: AISI 316 (IP66).

Additional information

Weight 2400 g

Datasheet