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    BIG-1-1-12/RS485 Intrinsic Safety Barrier Analog Input

    BIG-1-1-12/RS485 Intrinsic Safety Barrier Analog Input Intrinsically safe barrier analog input BIG-1-1-12/RS485 — figure 2 Intrinsically safe barrier analog input BIG-1-1-12/RS485 — figure 3

    Product Description

    The barrier is designed to transmit the current signal of the measuring circuit from the hazardous area and convert it into current and voltage signals, an RS485 interface, and subsequent transmission to the safe area. A separate power source is required. Parameters are configured using a PC or a portable programmer.

    Advantages

    • HART signals are transmitted in both directions.
    • The electronic circuits of the barriers are coated with varnish, which additionally protects the elements from external factors.
    • High conversion accuracy ±0.1%
    • Mounting on a standard 35mm wide DIN rail.
    • Easy installation/dismantling of the product.
    • The compact body allows for tighter installation.
    • Availability of LED indication.

    Compliance with standards

    GOST 31610.0-2014
    GOST 31610.11-2014
    GOST IEC 60079-14-2013
    TR CU 012/2011
    GOST IEC 61000-6-4-2016
    GOST 30804.6.2-2013

    Certificates

    EAEU RU C-RU.AZh58.V.04078-23
    EAEU RU S-RU.AZh58.V.04848/24 (BIG…/P)
    EAEU N RU D-RU.RA05.V.77977-23
    EAEU N RU D-RU.RA01.V.81929/24 (BIG…/P)

    Markings

    Explosion protection marking
    [Ex ia Ga] IIC
    [Ex ia Ga] IIB
    [Ex ia Ga] IIA
    [Ex ia Ma] I
    [Ex ia Da] IIIС
    Main parameters:
    Inter-verification interval: 2 years - BIG-1-1-12/RS485*
    4 years - BIG-1-1-12/RS485/P*

    *By default, barriers are supplied without initial verification. Please indicate the need for verification when submitting your request. The verification cost will be specified when issuing the technical quotation. Verification increases the delivery time by approximately two weeks.
    Operating temperature, °C: -20 … +60
    Power supply, V: = 18..60 Reverse polarity protection
    Input signal, mA: 4…20
    Input impedance, Ohm: ≤ 100
    Open circuit voltage, V: ≤ 26
    Operating voltage, V at 20 mA: ≥ 16
    Output signal output 1, mA: 4…20
    Load RL , Ohm: ≤ 550
    DIN rail mounting, mm: 35
    Maximum safe voltage, V: 250
    Intrinsic safety parameters:
    terminals 1, 2 terminals 1, 3
    II C： II B： II A： II C： II B： II A：
    U0 , B: 8,7 8,7 8,7 28 28 28
    I0 , mA 93 93 93
    P0 , mW 651 651 651
    C0 , μF 5 35 700 0,07 0,63 2,13
    L0, mH 4,2 12,6 33,6
    Transfer parameters:
    Error, %: 0,1
    Effect of temperature: ≤30 x 10-6 /°C:
    Response time, ms: ≤ 500
    Power consumption, W: ≤ 1,7
    Galvanic isolation, V:
    alternating current
    between intrinsically safe and non-intrinsically safe circuits    		 ≥ 3000
    alternating current
    between the supply circuit and non-intrinsically safe circuits    		 ≥ 1500
    Insulation resistance (between input/output/power supply), MOhm: ≥ 100
    Output signal value in safe state, mA: <3.6 or >21.5
    Output 2 parameters:
    Transfer protocol: MODBUS-RTU
    Maximum distance, m: ≤ 1000
    Number of nodes: ≤ 32
    Transfer speed, kbps: ≤ 19,2
    Output channel 2 statuses: Regardless of the input fault condition (except for open or short circuit, the output is 0 V/mA), the output value follows the input value within the measurement range. The maximum value should not exceed 110% of the upper limit of the measurement range (e.g., when the output signal type is 0…20 mA, the minimum output value can be 0 mA, but the maximum output value does not exceed 22 mA)

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    Where to buy GORELTEX products

    Saint Petersburg

    Head office and production site

    Telephone
    8 (800) 100-100-4
    Address
    193149, Leningrad region, Vsevolozhsk district, Novosaratovka village, Rabochaya street, house 9, building 1
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    Moscow

    Sales office

    Telephone
    +7 (495) 989-80-09
    Address
    123112, Moscow, Presnenskaya Embankment, 6, building 2, business complex "Imperia Tower", floor 12, office No. 15
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    Kazan

    Sales office

    Telephone
    +7 (843) 231-82-20
    Address
    420061, Russia, Republic of Tatarstan, Kazan, st. Nikolay Ershova, 1A, Korston Business Center, floor 11, office No. 1110
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    Tyumen

    Sales office and production site

    Telephone
    +7 (3452) 55-03-55
    Address
    625031, Russia, Tyumen, Shcherbakova St., 160G
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