Specific Parameters for Intrinsic Safety

Special conditions for safe use,

Intrinsic Safety (X)

Specific Parameters for Flameproof Installation

Special conditions for safe use, Flameproof Installation

Field wiring terminals, (+ , –):

Ui = 30 V,

Ii = 100 mA,

Pi = 1.2 W

Without local analog meter, ME:

Ci = 4.2 nF,

Ri = 0,

Li = 0

With local analog meter, ME:

Ci = 4.2 nF,

Ri = 0,

Li = 150 µH

With local smart digital meter, SM:

Ci = 4.2 nF,

Ri = 0,

Li = 0

 

 

 

 

The pressure transmitter is an intrinsically safe apparatus that can be installed in potentially explosive atmospheres.

The power terminals (+, -) must be connected only to a certified associated intrinsically safe apparatus.

The electrical parameters (U, I, and P) of the associated apparatus connected to the power terminals (+, -) must not exceed the following values:

Ui ≤ 30V

Ii ≤ 100 mA

Pi ≤ 1,2 W

Ambient temperature: - 50ºC to 93ºC

NOTE: -50ºC to 93ºC is the certification and “Operative Limits” for the product family. Refer to individual Specification Sheets for the standard “Rated Condition” ambient limits for a particular model that, as shown on the data-plate and certification nameplate, may be less than the certification limits.

Temperature classifications:

IS (ia) 4 – 20 mA / DE

Flameproof (d)

T4 up to Ta ≤ 93ºC

T5 up to Ta ≤ 93ºC

T5 up to Ta ≤ 85ºC

T6 up to Ta ≤ 78ºC

T6 up to Ta ≤ 70ºC

 

 

 

Enclosure classification: IP 66/67, Type 4X

Power supply to field wiring terminals, (+, –): Ucc ≤ 42 V

Output Signal: 4–20 mA

Ambient operating temperature: - 50 to 93ºC

NOTE: -50ºC to 93ºC is the certification and “Operative Limits” for the product family. Refer to individual Specification Sheets for the standard “Rated Condition” ambient limits for a particular model that, as shown on the data-plate and certification nameplate, may be less than the certification limits.

10/04

34-ST-99-36 (Addendum to 34-ST-33-39)

5 of 10