10/04 34-ST-99-36 (Addendum to 34-ST-33-39) 5 of 10
Specific Parameters
for Intrinsic Safety
Field wiring terminals, (+ , –):
Without local analog meter, ME:
With local analog meter, ME:
With local smart digital meter, SM:
Ui = 30 V, Ii = 100 mA, Pi = 1.2 W
Ci = 4.2 nF, Ri = 0, Li = 0
Ci = 4.2 nF, Ri = 0, Li = 150 µH
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
T4 up to Ta ≤ 93ºC
T5 up to Ta ≤ 85ºC
T6 up to Ta ≤ 70ºC
Flameproof (d)
T5 up to Ta ≤ 93ºC
T6 up to Ta ≤ 78ºC
Special conditions
for safe use,
Intrinsic Safety (X)
Enclosure classification: IP 66/67, Type 4X
Specific Parameters
for Flameproof
Installation
Power supply to field wiring terminals, (+, –): Ucc ≤ 42 V
Output Signal: 4–20 mA
Special conditions
for safe use,
Flameproof
Installation
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.
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