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VNS111-576

Description
Industrial Pressure Sensors FEMA
CategoryThe sensor   
File Size429KB,21 Pages
ManufacturerHoneywell
Websitehttp://www.ssec.honeywell.com/
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Industrial Pressure Sensors FEMA

VNS111-576 Parametric

Parameter NameAttribute value
Product CategoryIndustrial Pressure Sensors
ManufacturerHoneywell
ProductPressure Switches
Pressure TypeDifferential
Accuracy< 1 %
Port SizeG 1/2, G 1/4
Operating Supply Voltage250 VAC
Maximum Operating Temperature+ 70 C
Minimum Operating Temperature- 25 C
Mounting StylePanel
Operating Supply Current8 A
PackagingBulk
Pressure PortPort
Factory Pack Quantity1
DNS/VNS
Pressure switches and vacuum switches with stainless steel
sensors (1.4571)
Pressure switches of the DNS series are suitable
for monitoring and controlling pressures in
chemical plants, process engineering and
any situation where the pressure of aggressive
liquids and gases must be monitored.
SIL 2 according IEC 61508-2
DNS3-201
Technical data
Pressure connection
External thread G 1/2 (pressure gauge
connection) according to DIN 16 288 and
internal thread G 1/4 according to
ISO 228 Part 1.
Switching device
Robust housing (200) made of seawater-
resistant diecast aluminium GD Al Si 12.
Protection class
IP 54, in vertical position.
Pressure sensor materials
Pressure bellows and all parts in contact with
medium. X 6 Cr Ni Mo Ti 17122 Material no.
1.4571
Mounting position
Vertically upright and horizontal.
Max. ambient temperature at switching
device
–25…+70 °C.
Max. medium temperature
The maximum medium temperature at the
pressure sensor must not exceed the permitted
ambient temperature at the switching device.
Temperatures may reach 85°C for short
periods.
Higher medium temperatures are possible
provided the above limit values for the
switching device are ensured by suitable
measures (e.g. siphon).
Mounting
Directly on the pressure line (pressure
gaugeconnection) or on a flat surface with two
4 mm Ø screws.
Switching pressure
Adjustable from outside with screwdriver.
Switching differential
For values see Product Summary.
Contact arrangement
Single-pole changeover switch.
Switching
capacity
Normal
250 VAC 250 VDC 24 VDC
(ohm) (ind) (ohm) (ohm)
8A 5A
0.3 A
8A
Product Summary
Type
Setting range
Switching
differential
(mean values)
Max.
permissible
pressure
Dimen-
sioned
drawing
page 25 + 26
3
6
6
6
6
16
16
16
25
bar
bar
bar
bar
bar
bar
bar
bar
bar
1 + 18
1 + 16
1 + 18
1 + 16
* At very high vacuums, close to the theoretical maximum of –1 bar, the switch may not be usable in
view of the special conditions of vacuum engineering. However, the pressure switch itself will not be
damaged at maximum vacuum.
Plastic coating
The diecast aluminium housing in GD Al Si is
chromated and stove-enamelled with resistant
plastic. Corrosion tests with 3% saline solution
and 30 temperature changes from +10 to
+80°C showed no surface changes after 20
days.
-DNS/VNS
see page 66
s
Protection Class:
IP 54
Accessories
Solenoid valves
Calibration
The
DNS
and
VNS
series are calibrated for falling pressure. This means that the adjustable switching
pressure on the scale corresponds to the switching point at falling pressure. The reset point is higher
by the amount of the switching differential. (See also page 27, 1. Calibration at lower switching point).
Flow monitors
Switching differential adjustable
VNS301–203
–250…+100 mbar
VNS111–203
–1*…+0.1
bar
DNS025–203
0.04…0.25
bar
DNS06–203
0.1…0.6
bar
DNS1–203
0.2…1.6
bar
DNS3–203
0.2…2.5
bar
DNS6–203
0.5…6
bar
DNS10–203
1…10
bar
DNS16–203
3…16
bar
70 –300
90 –550
60 –300
80 –400
100 –600
0.15– 1.5
0.25– 2.0
0.45– 2.5
0.8– 3.5
mbar
mbar
mbar
mbar
mbar
bar
bar
bar
bar
3
6
6
6
6
16
16
16
25
bar
bar
bar
bar
bar
bar
bar
bar
bar
1 + 15
Temperature sensors
Switching differential not adjustable
VNS301-201
-250…+100 mbar
45 mbar
VNS111-201
-1*…+0.1
bar
50 mbar
DNS025-201
0.04…0.25
bar
30 mbar
DNS06-201
0.1…0.6
bar
40 mbar
DNS1-201
0.2…1.6
bar
60 mbar
DNS3-201
0.2…2.5
bar
0.1 bar
DNS6-201
0.5…6
bar
0.15 bar
DNS10-201
1…10
bar
0.3 bar
DNS16-201
3…16
bar
0.5 bar
1 + 15
Thermostats
Pressure transmitters
All components of the sensor system
are made of high-quality stainless steel (1.4571)
and welded using the latest methods without
filler metals. The pressure sensor
is gasket-free plasma-welded.
Pressure switches
Mechanical pressure switches
Liquids and gases
41
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