4
T 8313 EN
Table 1:
Technical data
Table 1.1:
Electric data for Type 3372
Type 3372
With integrated i/p converter
With Type 3725 Positioner (direct attachment)
1)
Actuator area
120 cm²
120 cm²
350 cm²
Rated travel
15 mm
15 mm
15 mm
30 mm
Function (mounted device)
Conversion of a DC signal into a pneumatic output
signal for measuring and control tasks
Electropneumatic positioner with self-calibrating,
automatic adaptation to valve and actuator
Reference variable
4 to 20 mA (reverse polarity protection)
4 to 20 mA (reverse polarity protection)
Split-range operation
–
4 to 11.9 mA and 12.1 to 20 mA
Static destruction limit
<–2 V or >+ 7 V
±33 V
Minimum current
3.6 mA
3.8 mA
Load impedance
≤7 V (300 Ω at 20 mA)
Max. 6.3 V
Span adjustment
25 % of travel range using potentiometer
Self-adjusting
Direction of action
Increasing/increasing, fixed
Adjustable: increasing/increasing or increasing/
decreasing
Tight-closing function
Stem extends: deactivation at ≤4.08 mA (≤0.5 %)
w < 1 % and w > 99 %
Stem retracts: activation at ≥19.95 mA (≥99.5 %)
Operation
Can be deactivated using a jumper
Can be individually activated or deactivated using ca
-
pacitive keys (P9 or P10)
Hysteresis
≤1 %
≤0.3 %
Variable position
≤7 %
–
Switching accuracy
0.14 mA
–
Air consumption in steady
state
When w = 100 %:
6 bar ≤200 l
n
/h · 4 bar ≤160 l
n
/h
≤100 l
n
/h with a supply pressure up to 6 bar and a
signal pressure of 0.6 bar
Air output
capacity
To fill actuator
with air
–
When Δp = 6 bar: 8.5 m
n
³/h
When Δp = 1.4 bar: 3.0 m
n
³/h
K
Vmax
(20 °C) = 0.09
To vent actuator
–
When Δp = 6 bar: 14.0 m
n
³/h
When Δp = 1.4 bar: 4.5 m
n
³/h
K
Vmax
(20 °C) = 0.15
Temperature range
2)
–30 to +70 °C
–25 to +80 °C
3)
Degree of protection
IP 54 or IP 65
4)
IP 66
5)
Electropneumatic or pneumatic
connection
Connected inside actuator
Separate from actuator (in the positioner)
Electromagnetic compatibility
Requirements according to EN 61000-6-2 and
EN 61000-6-3
Complying with EN 61000-6-2, EN 61000-6-3 and
NAMUR Recommendation NE 21
Display
Without
With
Initialization
Manual
Automatic
Operation
Using screws
Using capacitive keys
Zero calibration
Without
Automatic
(activated by P15 or P16)
Associated documentation
u
EB 8313-1
u
EB 8313-3,
u
EB 8394 or
u
T 8394
1)
Versions with Type 3730-x or Type 3731-x Positioner on request
2)
Observe temperature range of mounted devices (positioner etc.).
3)
Maximum –35 to +90 °C with Type 373x-x Positioner and metal cable glands
4)
IP 65 only when the vent plug is replaced by a filter check valve (order no. 1790-7408)
5)
Other ratings possible when a Type 373x-x Positioner is mounted. See corresponding mounting and operating instructions.
