SITRANS I200 Output Isolators with HART

SITRANS I200 Output Isolators with HART
Обзор

Analog input 0/4 ... 20 mA for HART

The output isolators are used for the intrinsically safe operation of valve positioners, i/p converters or indicators.

Operation of intrinsically safe HART valve positioners (e.g. SIPART PS2 and SITRANS VP300) is also possible. The units transfer a superimposed HART communication signal bidirectionally.

Особенности

For HART output signals 0/4 ... 20 mA

Intrinsically safe output [Ex ia] IIC

Galvanic isolation between input, output and auxiliary power

Open-circuit and short-circuit monitoring and messaging (can be switched off)

Installation possible in Zone 2 and Div. 2

Can be used up to SIL 2 (IEC 61508)

 

Zones

 

0

1

2

20

21

22

Ex i interfaces

X

X

X

X

X

X

Installation in

 

 

X

 

 

X


Дизайн

The HART output isolator is comprised of a compact plastic housing (IP30) and is equipped with push-in screw terminals.

On the front are a green LED for indicating the power supply status and a red LED for signaling errors.

The auxiliary power supply can be connected individually using push-in screw terminals or jointly for up to 40 units using pac-Bus.

SITRANS I200 output isolator, function block diagram

Технические данные

SITRANS I200 output isolator

Input

 

Input signal

0/4 ... 20 mA with HART

Functional range

0 ... 24 mA

Max. input current

50 mA

Input resistance (changeable switch LI)

225 Ω/550 Ω

Communication signal

Bidirectional HART transmission, 0.5 kHz ... 30 kHz

Ex i output

 

Output signal

0/4 ... 20 mA with HART

Connectable load resistance

0 ... 800 Ω

Min. load resistance for short-circuit monitoring

150 Ω

Residual ripple

≤ 50 mV

No-load voltage

≤ 25.6 V

Response time (10 % ... 90 %)

≤ 25 ms

Measuring accuracy

Accuracy, typical data expressed as % of calibrated span at UN, 23 °C

 

Linearity error

≤ 0.1 %

Offset error

≤ 0.1 %

Temperature influence

≤ 0.1 %/10 K

Power supply effect within voltage range

≤ 0.01 %

Load resistance effect

≤ 0.02 %

Rated conditions

 

Degree of protection of enclosure

IP30

Degree of protection of terminals

IP20

Ambient conditions

 

  • Ambient temperature

-20 °C ... 70 °C (-4 ...  158 °F)
(see operating instructions)

  • Storage temperature

-40 °C ... 80 °C (-40 ...  176 °F)

  • Relative humidity (no condensation)

≤ 95 %

Electromagnetic compatibility

Tested under the following standards and regulations: EN 61326-1 Use in the industrial environment

Construction

 

Screw terminals

 

  • One-wire connection
 

  • Rigid

0.2 ... 2.5 mm2 (0.00031 ... 0.0039 in2)

  • Flexible

0.2 ... 2.5 mm2 (0.00031 ... 0.0039 in2)

  • Flexible with end ferrules (without/with plastic ferrule)

0.25 ... 2.5 mm2 (0.00039 ... 0.0039 in2)

  • Two-wire connection
 

  • Rigid

0.2 ... 1 mm2 (0.00031 ... 0.00155 in2)

  • Flexible

0.2 ... 1.5 mm2 (0.00031 ... 0.0023 in2)

  • Flexible with end ferrules

0.25 ... 1 mm2 (0.00039 ... 0.00155 in2)

Weight

Approx. 160 g (0.35 lb)

Type of installation

On DIN rail according to EN 50022 (NS35/15; NS35/7.5)

Mounting position

Vertical or horizontal

Enclosure material

PA 6.6

Fire protecting class (UL-94)

V0

Auxiliary power

 

Rated voltage UN

24 V DC

Voltage range

18 ... 31.2 V

Residual ripple within voltage range

≤ 3.6 VSS

Rated current (UN, 20 mA)

80 mA

Power consumption (UN, 20 mA)

1.3 W

Power loss (at UN, RL = 250 Ω)

1.1 W

Operation indicator

Green "PWR" LED

Reverse polarity protection

Yes

Undervoltage monitoring

Yes (no faulty module/output states)

Galvanic isolation

 

Test voltage according to EN 60079-11

 

  • Ex i output to input

1.5 kV AC

  • Ex i output to auxiliary power

1.5 kV AC

  • Error contact to Ex i output

1.5 kV AC

Test voltage according to EN 50178

 

  • Input to auxiliary power

350 V AC

  • Error contact to auxiliary power and input

350 V AC

Error detection Ex i output

 

  • Open circuit

> 10 kΩ

  • Short-circuit

< 15 Ω

  • Input behavior

> 6 kΩ

  • Open-circuit detection only for input current

≥ 3.6 mA

  • Settings (LF switch)

Activated/deactivated

  • Error indication

LED red "LF"

  • Error messaging and power supply failure
  • Contact (30 V/100 mA), closed to ground in case of error
  • pac-Bus, floating contact (30 V/100 mA)

Certificates and approvals

 

Explosion protection ATEX

 

  • EC type-examination certificate

DMT 03 ATEX E 012 X

  • Degree of protection

II 3 (1) G Ex nA nC [ia] IIC T4

II (1) D [Ex iaD]

Installation

In Zone 2, Div. 2 and in the safe area

Other approvals

USA (FM) (available soon)

Canada (CSA) (available soon)

Shipping (DNV)

Safety specifications (CENELEC)

 

  • Max. voltage Uo

25.6 V

  • Max. current Io

96 mA

  • Max. power Po

605 mW

  • Max. connectable capacitance Co for IIC/IIB

103 nF/800 nF

  • Max. connectable inductance Lo for IIC/IIB

1.9 mH/11 mH

  • Internal capacitance Ci and inductance Li

Negligible

  • Insulation voltage Um

253 V

  • For more information and value combinations see certification.
 


Чертеж

SITRANS I200 output isolator with HART, dimensions in mm (inch)

Схема подключения

SITRANS I200 output isolator with HART, connection diagram

7NG4131-0AA00 SITRANS I200 OUTPUT ISOLATER HART; RAIL MOUNTING; INPUT AND OUTPUT 0/4-20 MA; INTRINSICALLY SAFE OUTPUT; POWER SUPPLY DC 24V
7NG4998-1AA SITRANS I BASIC SET PAC-BUS WITH 5 SINGLE ELEMENTS AND TERMINAL SET (BEGIN AND END)
7NG4998-1AB SITRANS I EXTENSION SET PAC-BUS WITH 5 SINGLE ELEMENTS

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