SITRANS AS100 Acoustic Sensor Catalog

© Siemens AG 2016
Process Protection
Acoustic sensors for material flow monitoring
SITRANS AS100 acoustic sensor
■ Overview
■ Application
SITRANS AS100 detects changes in high frequency sound
waves from equipment and materials in motion. It detects and
reacts instantly to changes in solids flow to warn of blockages,
product absence, or equipment failure such as burst filter bags.
This allows an operator to take early preventative action and
avoid costly damage.
Common applications include pellets, powders and most bulk
solids in pipes, chutes, vibratory feeders, pneumatic conveyors
or aerated gravity flow systems.
Operating with a SITRANS CU02 control unit, the system detects
conditions of high flow, low flow or no flow. It can be added to a
control loop via a 4 to 20 mA output. Two relays are fully programmable and independent of each other and can be used to
operate an alarm or control device.
SITRANS AS100 is an acoustic sensor used for solids flow
detection.
■ Benefits
6
•
•
•
•
With no moving parts and a type 304 or 303 stainless steel enclosure sealed against dust and moisture, this non-invasive unit
requires little or no maintenance. With a dual operating range,
the sensor offers an exceptionally wide range of application capabilities.
• Key applications: pipes, chutes, vibratory feeders, aerated
gravity flow systems, burst filter bag detection
Non-invasive
Screw in, bolt on, weld, or bond in place
Analog output
High and low sensitivity range of operation
■ Design
Clearance hole
Insert mounting post through
hole in device being monitored
and fasten with customersupplied washers and nut.
SITRANS AS100 mounting
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Drill and tap
Screw mounting post into
threaded hole in device being
monitored.
Extension tab
Screw sensor into threaded hole
of tab, and fasten onto device
being monitored.
Mounting disc
Screw sensor into disc, after
welding or bonding disc onto
device being monitored.
© Siemens AG 2016
Process Protection
Acoustic sensors for material flow monitoring
SITRANS AS100 acoustic sensor
■ Technical specifications
Mode of Operation
Operating principle
Acoustic sensing of high frequency
emissions caused by impact or friction
Typical application
• Detects burst filter bags in dust collection systems
• Detects material being conveyed in
pneumatic conveyor lines
• Route confirmation in chute work
Model
Standard
Standard operating temperature
range
Extended
Extended operating temperature
range
Operation
Relative sensitivity
0.5 %/ºC of reading, average over the
operating range
Outputs
Analog, 0.08 ... 10 V DC nominal,
100 k minimum load impedance
Rated operating conditions
Amb. temperature for enclosure
• Standard
• Extended
-20 ... +80 °C (-4 ... +176 °F)
• -40 ... +125 °C (-40 ... +257 °F)
(CE only)
• -30 ... +120 °C (-22 ... +248 °F)
option
Design
Weight
0.4 kg (1 lb)
Enclosure: 304 (1.4301) stainless
steel [303 stainless steel (1.4305) on
Class II version, aluminum 231 on
2GD version]
Degree of protection
IP68 (waterproof)
• Extended
Article No.
SITRANS AS100 Acoustic Sensor
An acoustic sensor used for solids flow detection.
777 0 7
7 MH 7 5 6 0 -
Click on the Article No. for the online configuration in the PIA Life Cycle Portal.
Sensor
Standard temperature range
[-20 ... +80 °C (-4 ... +176 °F)]1)
Extended temperature range
[-40 ... +125 °C (-40 ... +257 °F)2)
Extended temperature range
[-30 ... +120 °C (-22 ... +248 °F)]3)
 1
 3
 4
Cable Length
4 m (13.12 ft)

Sensor Mounting
None
Mounting disk
Mounting tab



Approvals
CE, RCM
CSA/FM Class II Div.1, Group E, F, and G
(includes ½" NPT female fitting)
CSA Class II, Div. 1, Group E, F, and G
(includes ½" NPT female fitting)
CE, RCM, FM/CSA Class II, Div. 1, Group E,
F and G, ATEX II 3D (includes M20 female fitting)
ATEX II 2GD, c/w cable gland4)
A
A
B
C


1
3

4

5
6
1)
Enclosure
Cable
• Standard
Selection and Ordering data
4 m (13 ft) cable, PVC jacketed,
3 twisted pairs, 24 AWG (0.25 mm2),
shielded
4 m (13 ft) cable, thermoplastic
elastomer jacketed, 6 conductor,
24 AWG (0.25 mm2) conductor,
shielded
Power supply
20 ... 30 V DC, 18 mA (typical)
Certificates and approvals
CE, RCM
CSA/FM Class II, Div. 1, Group E, F,
and G (optional),
ATEX II 2GD (optional), ATEX II 3D
(optional), EAC
Available with approval options 1, 3, 5, and 6 only
Available with approval option 1 only
Available with approval option 4 only
4)
Available with sensor option 1 only and sensor mounting option A only
2)
3)
Selection and Ordering data
Order code
Further designs
Please add "-Z" to Article No. and specify Order
code(s).
Manufacturer’s test certificate: According to
EN 10204-2.2
 C11
Acrylic coated, stainless steel tag [12 x 45 mm
(0.5 x 1.75 inch)]: Measuring-point number/
identification (max. 16 characters),
specify in plain text
 Y17
Operating Instructions
Article No.
English
A5E31952194
German
A5E31990912
Note: The operating instructions should be ordered
as a separate item on the order.
All literature is available to download for free, in a
range of languages, at http://www.siemens.com/
processinstrumentation/documentation
This device is shipped with the Siemens Level and
Weighing manual DVD containing ATEX Quick
Starts and operating instructions.
Spare Parts
Mounting tab
7MH7723-1AA
Mounting disk
7MH7723-1AB
½" NPT adapter kit for standard temperature range
sensor, not Class II approved
7MH7723-1BW
M20 adapter kit for standard temperature range
sensor, not Class II or ATEX approved
7MH7723-1BV
½" NPT adapter kit for extended temperature range
sensor, not Class II approved
Note: Adapter kits are not CSA Class II approved
7MH7723-1BX
 We can offer shorter delivery times for configurations designated with the
Quick Ship Symbol . For details see page 9/5 in the appendix.
Siemens FI 01 · 2016
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© Siemens AG 2016
Process Protection
Acoustic sensors for material flow monitoring
SITRANS AS100 acoustic sensor
■ Dimensional drawings
SITRANS AS100
(ST and ET versions)
SITRANS AS100
(class II rated ST and ET versions)
6 x 24 AWG cable
6 x 24 AWG cable
32
(1.3)
82 (3.2)
36 (1.4)
17
(0.7)
Mounting post,
17A/F nut and
M10 thread
44 (1.8)
44 (1.8)
8 (0.3)
67 (2.7)
36 (1.4)
8 (0.3)
½" NPT female
conduit fitting
(M20 fitting for
ATEX version)
Mounting post,
17A/F nut and
M10 thread
SITRANS AS100, dimensions in mm (inch)
Cable entry (2)
M20 X 1.5
Accessories
Extension tab - bolt on
(304 stainless steel)
10 (0.4)
6
60
(2.36)
SITRANS AS100
mounting hole
M10 thread
30 (1.2)
Bolt hole,
14 (0.55)
Sensor cable
and connector
60
(2.36)
75 (2.95)
15
(0.6)
15
(0.6)
135
(5.32)
85 (3.3)
Mounting disc - bonded or welded
(304 stainless steel)
Ø 30 (1.2)
15 (0.6)
120 Ø
(4.72)
SITRANS AS100
mounting hole
M10 thread
SITRANS AS100 accessories, dimensions in mm (inch)
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120 ± 5
(4.72 ± .2)
Enclosure
SITRANS AS100 (2D, 2G, XP version), dimensions in mm (inch)
© Siemens AG 2016
Process Protection
Acoustic sensors for material flow monitoring
SITRANS AS100 acoustic sensor
■ Schematics
Standard temperature range
Red
Blk
Grn
Blk
Wht
Blk
+ Vsup: 20 ... 30 V DC
- supply input
Or*
+ Vsens:
- analog output
0.08 ... 10 V DC
nominal
Shield, tied to Sensor casing
* Sensor range selection
High sensitivity range = red and green to Vsup+
Low sensitivity range = red to Vsup+, green to Vsup-
Extended temperature range
Red
Blk
Org
Grn
Yel
Brw
+ Vsup: 20 ... 30 V DC
- supply input
Or*
+ Vsens:
- analog output
shield, tied to Sensor casing
0.08 ... 10 V DC
nominal
* Sensor range selection
High sensitivity range = red and orange to Vsup+
Low sensitivity range = red to Vsup+, orange to Vsup-
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Interconnection
The longer the cable, the more susceptible it is to noise and earth
loops. It is therefore recommended to use cable with heavy gauge
conductors and good RF/electrical shielding (copper braid rather than
drain and foil). A proper junction box close to the sensor is an ideal
location not only to extend the cable but also to configure the wiring
for high or low sensitivity range operation.
The following table provides a guideline for suitable wire gauges
where distances are considerable.
Max. distance between sensor and supply
(24 V or Control Unit).
AWG
Wire size
mm
mm 2
Distance
meters
feet
24
7 x 0.20
0.25
500
22
7 x 0.25
0.35
800
2 600
20
10 x 0.25
0.5
1 200
3 900
1 600
SITRANS AS100 connections
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