Operation - Samson 3372 User Manual

Table 1: Technical data
Table 1.1: Electric data for Type 3372
Type 3372
Actuator area
Rated travel
Function (mounted device)
Reference variable
Split-range operation
Static destruction limit
Minimum current
Load impedance
Span adjustment
Direction of action
Tight-closing function

Operation

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