EB 8384-6S EN
29
Design and principle of operation
3.9 Technical data
Table 12:
TROVIS SAFE 3730-6 Electropneumatic Positioner
TROVIS SAFE 3730-6 Positioner:
the technical data for the explosion-protected devices may be restricted by the
limits specified in the test certificates.
Travel
Adjustable
Direct attachment to Type 3277 Actuator:
3.6 to 30 mm
Attachment according to IEC 60534-6-1:
3.6 to 300 mm
Attachment according to VDI/VDE 3847:
3.6 to 300 mm
Rotary actuators:
24 to 100° opening angle
Travel
range
Adjustable
Adjustable within the initialized travel/angle of rotation; travel can be restricted to
1/5 at the maximum
Set point
w
Signal range
4 to 20 mA · Two-wire device, reverse polarity protection · Minimum span 4 mA
Static destruction
limit
30 V
Minimum current
3.6 mA for display · Emergency venting at ≤3.8 mA or ≤4.4 mA depending on
version
Load impedance
≤9.2 V (corresponding to 460 Ω at 20 mA)
Supply air
1.4 to 7 bar (20 to 105 psi)
Air quality acc. to
ISO 8573-1
(edition 2001-02)
Maximum particle size and density: Class 4 · Oil content: Class 3
Pressure dew point: Class 3 or at least 10 K below the lowest ambient temperature
to be expected
Signal pressure (output)
0 bar up to the supply pressure · Can be limited between 1.4 and 7.0 bar by
software
Characteris-
tic
Adjustable
Linear/Equal percentage/Reverse equal percentage
User-defined (over operator software)
Butterfly valve, rotary plug valve and segmented ball valve: Linear/equal
percentage
Deviation
≤1 %
Hysteresis
≤0.3 %
Sensitivity
≤0.1 %
Transit time
Exhaust and supply adjustable separately up to 240 s by software
Direction of action
Reversible
Air consumption, steady state
Independent of supply air approx. 110 l
n
/h
Air output
capacity
Actuator (supply)
At Δp = 6 bar: 8.5 m
n
³/h · At Δp = 1.4 bar: 3.0 m
n
³/h · K
Vmax(20 °C)
= 0.09
Actuator (exhaust)
At Δp = 6 bar: 14.0 m
n
³/h · At Δp = 1.4 bar: 4.5 m
n
³/h · K
Vmax (20 °C)
= 0.15
Permissible ambient temperature
–20 to +80 °C for all versions
–45 to +80 °C with metal cable gland
–25 to +80 °C with inductive limit switch (SJ2-S1N) and metal cable gland
The temperature limits for the explosion-protected devices may be further restricted
by the limits specified in the test certificates.
Influences
Temperature
≤0.15 %/10 K
Supply air
None
Effect of vibration
≤ 0.25 % up to 2000 Hz and 4 g according to IEC 770
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