SGM7006 [ETC]
Pressure independent & temperature compensated;
| 型号： | SGM7006 |
| 厂家： | 
ETC |
| 描述： | Pressure independent & temperature compensated |
| 文件： | 总9页 (文件大小：445K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Datasheet – SGM7001, SGM7002, SGM7004, SGM7006
Sensirion CMOSens® G1.6, G2.5, G4 and G6 Gas Flow Meter Modules
. Pressure independent & temperature compensated
. Automatic compensation for gas quality
. Accuracy ±1.5% – 3% m.v.
. Evaluation certification: EN 14236 and OIML R 137
. Long-term reliability
. Low power consumption
. Zero offset, no drift
Product Summary
The SGM70xx sensors are Sensirion’s digital gas flow
meter modules designed for residential natural gas smart
metering applications. They measure the standard
volume flow of natural gas independent of
temperature and pressure.
The automatic gas quality compensation mechanism
assures accurate measurements even with varying
natural gas composition.
The standard volume flow (“mass flow”) output and I2C
digital interface make this sensor highly suitable for smart
gas metering applications.
The SGM70xx sensor modules have achieved an
Evaluation Certification in accordance with the harmonized
standards EN 14236 and OIML R137 for natural gas, type
H and L, issued by NMi. This Evaluation Certificate can be
used as a basis to make it easier and faster for gas meter
manufacturers to gain MID approval for gas meters using
SGM70xx as core metrological unit.
The outstanding performance of these sensors is based
on Sensirion’s patented CMOSens® Technology, which
combines the sensor element, signal processing and
digital calibration on a single microchip.
The well-proven CMOSens® Technology, with several
hundred thousand gas flow meter modules in the field, is
perfectly suited for high-quality mass production and is an
ideal choice for high-volume residential smart gas
metering applications.
The patented design of the flow channel and the patented
pulsed measurement scheme ensure robust and reliable
flow measurements under demanding working
conditions and under low power consumption.
Applications
and processing on the single silicon die, significant
performance, reliability and cost benefits are achieved.
.
Residential Smart Gas Metering
The sensor chip
SGM70xx integration into a gas meter
The SGM70xx gas flow meter modules feature Sensirion’s
state-of-the-art CMOSens® flow chip. CMOSens® flow
chips are qualified and produced by Sensirion to stringent
automotive and medical standards.
Sensirion provides the SGM70xx module only. It is the
responsibility of the customer to:
.
.
Design and build the gas meter housing
Ensure correct mounting of SGM70xx module in
the gas meter housing
The CMOSens® chip not only contains a thermal mass
flow sensor element, but also the amplifier, A/D converter,
calibration memory, digital signal processing circuitry, and
interface. Due to seamless integration of signal acquisition
.
.
Implement communication between SGM70xx
module and gas meter electronics
Fine-tune calibration of the gas meter in air only
www.sensirion.com
Version 1.2 – July 2016
1/9
.
Test gas meter in air only
The customer needs to fine-adjust meter calibration in air
only. No further calibration or testing with natural gas on
the customer side is needed. Sensirion provides
consulting and support regarding fine-adjustment of
calibration.
Every SGM70xx sensor is individually pre-calibrated,
linearized and temperature compensated with air and a
surrogate gas of methane. The automatic gas quality
compensation can either be configured for measurements
in H-gas or L-gas.
1. Sensor Performance1
Sensor performance is described for fine-adjusted product in template gas meter housing. Please note that a sensor built in
customer meter housing can achieve inhere specified performance only after fine-adjustment procedure.
1.1 Specification of Flow Rates
Unit
slm (2)
SGM7001
0.267
0.016
4.17
SGM7002
0.416
0.025
6.66
0.4
SGM7004
0.67
0.04
10
SGM7006
1.0
Q
Q
Q
Q
Q
Q
min
scmh (2)
slm (2)
scmh (2)
slm (2)
scmh (2)
slm (2)
slm (2)
0.06
16.7
1
t
0.25
0.6
41.67
2.5
66.7
4.0
100
6
167
10
max
neg. saturation
pos. saturation
-9
-15
-24
-39
3
saturation
53
85
130
215
4
2 Qmax
- 0.2 Qmax
10
overflow
5
reverse
SNR6 @ 0.25 Q
min
(relevant for min. detectable flow rate)
1
2
3
4
5
6
Sensirion guarantees specifications of the SGM70xx module only.
slm: standard liter per minute; scmh: standard cubic meter per hour; conditions: T = 15°C and P = 1013 mbar.
Qstauration is defined as minimum / maximum linearized flow output value of the SGM70xx module.
Qoverflow is defined as overflow that does not damage the SGM70xx module.
Qreverse = maximum negative flow for which the initial accuracy applies as defined in Table 1.2 Physical specification.
Mean Signal Amplitude
Signal to noise ratio, 푆푁푅 =
Std. Dev. Signal Amplitude
www.sensirion.com
Version 1.2 – July 2016
2/9
1.2 Physical specifications
Parameter
Description
Value
Unit
-25 to 55
°C
Operating Temperature
-30 to 60
15
°C
°C
Temperature
Storage Temperature
Defined Center Temperature
Operating humidity of the medium in
the gas meter when medium is air
(testing purposes)
35 – 75
0 – 40
% RH
% RH
Humidity
Operating Humidity of the medium in
the gas meter when the medium is
natural gas
35 – 85
% RH
Storage Humidity (in Air)
+/-10
% m.v.8
Flow range: Q
Flow range:
≤ Q ≤ -Q
min
reverse
Not defined
+/- 3.0
-Q < Q < Q
min
min
Initial accuracy7
(for T = 15°C)
% m.v.8
% m.v.8
Flow range:
Q
≤ Q < 0.1Q
min
max
+/- 1.5
Flow range: 0.1Q ≤ Q ≤ Q
max
max
Not defined
Flow range: Q < Q
max
Initial pressure drop of
SGM70xx module without
Meter-Housing
<1.5
mbar in air
Pressure drop at Q
max
7
One measurement value is specified for an average of at least ten consecutive acquisitions. The value measured with a single acquisition (one single data acquisition) may
be outside the specified accuracy range.
8
In % of measured value (m.v.) = of rate = of reading
www.sensirion.com
Version 1.2 – July 2016
3/9
1.3 Initial accuracy over temperature7
For meters with temperature compensation, the European standard EN 14236 allows additional +0.5 % m.v. in the
temperature range 0° – 30°C. Outside 0° – 30°C, the standard allows additional +0.5 % m.v./10°C. The initial accuracy
values over temperature are listed in the table below. Please note that the specified values are valid only after fine-adjustment
with assembled meter has been performed.
Flow range
MPE
-30°C
≤ T <
-20°C
≤ T <
-10°C
≤ T <
0°C
≤ T ≤
-20°C
-10°C
0°C
30°C
Q
Q
Q
Q
< Qmin
Not defined
±5% m.v. 8
±3.5% m.v. 8
Not defined
Not defined
±4.5% m.v. 8
±3% m.v. 8
Not defined
Not defined
±4% m.v. 8
±2.5% m.v. 8
Not defined
Not defined
±3.5% m.v. 8
±2% m.v. 8
Not defined
Qmin
0.1·Qmax
Qmax
≤
≤
<
< 0.1·Qmax
≤ Qmax
Flow range
MPE
0°C
30°C
< T ≤
40°C
< T ≤
50°C
< T ≤
≤ T ≤
30°C
40°C
50°C
60°C
Q
Q
Q
Q
< Qmin
Not defined
±3.5% m.v. 8
±2% m.v. 8
Not defined
Not defined
±4% m.v. 8
±2.5% m.v. 8
Not defined
Not defined
Not defined
±5% m.v. 8
±3.5% m.v. 8
Not defined
Qmin
0.1·Qmax
Qmax
≤
≤
<
< 0.1·Qmax
±4.5% m.v. 8
±3% m.v. 8
Not defined
≤ Qmax
1.4 Repeatability
Repeatability at static flow conditions of subsequent measurements7.
Parameter
Description
Q < Q
Value
Unit
Not defined
min
1
% m.v. 8
% m.v. 8
Q
≤ Q < 0.1Q
min
max
Flow range
0.5
0.1Q ≤ Q ≤ Q
max
max
Not defined
Q
< Q
max
1.5 Temperature compensation
The sensor element features internal temperature compensation for calibrated gases.
www.sensirion.com
Version 1.2 – July 2016
4/9
1.6 Media compatibility
.
.
Air
Natural gas (consisting of CO2, N2, H2, CH4, C2H6, C3H8, iso-C4H10, n-C4H10, iso-C5H12, n-C5H12, C6H14)
2. Electrical Specifications
2.1 Operating voltage
Parameter
Description
Value
Unit
Required voltage supply to fulfil
specifications
Vdc
3.1 – 3.6
2.7 – 3.6
Operating voltage
Vdc
µA
Allowed supply voltage
Average current consumption
(approx.)9
Sensor module SGM70xx
20 – 30
2.2 Interface
Digital 2-wire interface (standard I2C) with bus clock frequency of 100 kHz (Maximum 400 kHz)
Default I2C address: 64 (binary 1000 000)
2.3 Electromagnetic compatibility (EMC)
To be tested within the final gas meter product.
2.4 Preventions against electrostatic discharge (ESD)
The inherent design of this component causes it to be sensitive to electrostatic discharge (ESD). To prevent ESD-induced
damage and/or degradation, take common and statutory ESD precautions when handling this product.
9
Exact current consumption depends on the exact electronic host environment.
www.sensirion.com
Version 1.2 – July 2016
5/9
3. Mechanical Specifications
3.1 Mechanical dimensions
Dimensions
SGM7001 and SGM7002
SGM7004 and SGM7006
76.7 ± 0.35 mm
A
B
C
D
E
37.6 ± 0.25 mm
44.6 ± 0.25 mm
40 ± 0.25 mm
32.2 ± 0.25 mm
17.5 mm
24.6 mm
3.2 Electrical connector
Connector type of SGM70xx: JST-B4B-ZR-SM4-TFT.
Recommended JST plug housing: ZHR-4.
Recommended JST contacts: SZH-003T-P0.5.
Flow direction
www.sensirion.com
Version 1.2 – July 2016
6/9
3.3 Assembly into gas meter
Sensirion delivers SGM70xx modules only (see the images below only for illustration purposes, design-in is customer’s own
responsibility). Dimensions are given in mm.
The SGM70xx module is held in place by an O-ring and a metal fixation clip. The O-ring and the fixation clip are not supplied
by Sensirion.
Note: the correct function and performance of the SGM70xx module depends on the design and assembly of the gas meter
housing. Sensirion AG provides specialized consulting for the integration of SGM70xx into the customer-specific gas meter
housing.
3.3.1 Mounting place
SGM70xx modules are designed to be placed at gas meter outlet.
3.3.2 Mesh at SGM module
Sensirion recommends including a mesh at the outlet (and preferably also at the inlet) of the gas meter to prevent large
particles (e.g. screws or nuts) from entering the meter housing.
3.3.3 Mounting restrictions
During or after assembly of the gas meter mechanical stress to SGM70xx module has to be avoided. The mounting has to be
in a way that constant gas intake conditions are guaranteed.
3.3.4 Mounting orientation
Recommended vertical, with upwards flow. Connector PINs oriented towards inlet port. Other mounting orientations are
possible. For more information please contact Sensirion.
3.4 SGM70xx Housing Material
Plastic: PBT (polybutylene terephthalate)
www.sensirion.com
Version 1.2 – July 2016
7/9
3.5 Wetted Materials
.
.
.
.
.
.
.
.
SGM70xx housing material (defined in 3.4)
glass (silicon nitride, silicon oxide)
silicon
FR4
Polyurethane (PUR)
epoxy
copper alloy
Nylon, tin plated phosphor bronze, PBTP
3.6 Weight
SGM7001 and SGM7002: less than 25 g.
SGM7004 and SGM7006: less than 30 g.
4. Instructions for Use
In order to ensure proper functioning of SGM70xx within the gas meter, Sensirion AG provides specialized consulting for the
integration of SGM70xx into the customer-specific gas meter housing. For further instructions, please contact us directly.
Revision history
Date
Author
MOM
MOM
Version
1.0
Changes
09.10.2015
04.04.2016
First release of combined datasheet for SGM70xx
1.1
Adding Evaluation Certification, updating of flow specifications, adding center temperature tsp,
adding recommended JST plug housing and contacts, adding combined drawing of
mechanical dimensions
12.07.2016
MOM
1.2
Extension of Evaluation Certification for L-gas
www.sensirion.com
Version 1.2 – July 2016
8/9
Important Notices
Warning, personal injury
NO WARRANTIES, EITHER EXPRESS OR IMPLIED, WITH RESPECT TO
THE PRODUCT. ANY AND ALL WARRANTIES, INCLUDING WITHOUT
LIMITATION, WARRANTIES OF MERCHANTABILITY OR FITNESS FOR
Do not use this product as safety or emergency stop devices or in any
other application where failure of the product could result in personal
injury (including death). Do not use this product for applications other
than its intended and authorized use. Before installing, handling,
using or servicing this product, please consult the datasheet and
application notes. Failure to comply with these instructions could
result in death or serious injury.
A
PARTICULAR PURPOSE, ARE EXPRESSLY EXCLUDED AND
DECLINED.
SENSIRION is only liable for defects of this product arising under the
conditions of operation provided for in the datasheet and proper use of the
goods. SENSIRION explicitly disclaims all warranties, express or implied,
for any period during which the goods are operated or stored not in
accordance with the technical specifications.
If the Buyer shall purchase or use SENSIRION products for any unintended
or unauthorized application, Buyer shall defend, indemnify and hold
harmless SENSIRION and its officers, employees, subsidiaries, affiliates
and distributors against all claims, costs, damages and expenses, and
reasonable attorney fees arising out of, directly or indirectly, any claim of
personal injury or death associated with such unintended or unauthorized
use, even if SENSIRION shall be allegedly negligent with respect to the
design or the manufacture of the product.
SENSIRION does not assume any liability arising out of any application or
use of any product or circuit and specifically disclaims any and all liability,
including without limitation consequential or incidental damages. No
obligation or liability shall arise or grow out of Sensirion’s rendering of
technical advice, consulting, or advice in connection with the design
configurations of the gas meter housing. All operating parameters, including
without limitation recommended parameters, must be validated for each
customer’s applications by customer’s technical experts. Recommended
parameters can and do vary in different applications. The design
configurations of SGM 700x sensor module in gas meter housings shown in
this document are for illustration purposes only. The design-in and design-in
configuration of SGM 700x sensor modules into gas meter products is
customer’s own responsibility.
ESD Precautions
The inherent design of this component causes it to be sensitive to
electrostatic discharge (ESD). To prevent ESD-induced damage and/or
degradation, take customary and statutory ESD precautions when handling
this product.
See application note “Handling Instructions” for more information.
SENSIRION reserves the right, without further notice, (i) to change the
product specifications and/or the information in this document and (ii) to
improve reliability, functions and design of this product.
Warranty
SENSIRION warrants solely to the original purchaser of this product for a
period of 12 months (one year) from the date of delivery that this product
shall be of the quality, material and workmanship defined in SENSIRION’s
published specifications of the product. Within such period, if proven to be
defective, SENSIRION shall repair and/or replace this product, in
SENSIRION’s discretion, free of charge to the Buyer, provided that:
This datasheet replaces and invalidates all previously released datasheets
of SGM7001, SGM7002, SGM7004 and SGM7006.
Copyright © 2001-2016, SENSIRION.
CMOSens® is a trademark of Sensirion
All rights reserved
.
notice in writing describing the defects shall be given to SENSIRION
within fourteen (14) days after their appearance;
REACH and RoHS Statement
The SGM70xx sensor complies with requirements of the following
directives:
.
such defects shall be found, to SENSIRION’s reasonable satisfaction,
to have arisen from SENSIRION’s faulty design, material, or
workmanship;
.
.
the defective product shall be returned to SENSIRION’s factory at the
Buyer’s expense; and
the warranty period for any repaired or replaced product shall be
limited to the unexpired portion of the original period.
.
.
EU Directive 1907/2006/EC concerning Registration, Evaluation,
Authorization and Restriction of Chemicals (REACH)
This warranty does not apply to any equipment which has not been installed
and used within the specifications recommended by SENSIRION for the
intended and proper use of the equipment. EXCEPT FOR THE
WARRANTIES EXPRESSLY SET FORTH HEREIN, SENSIRION MAKES
EU Directive 2002/65/EC on the restriction of certain hazardous
substances in electric and electronic equipment (RoHS), OJ01.01.2011
Headquarters and Subsidiaries
SENSIRION AG
Laubisruetistr. 50
CH-8712 Staefa ZH
Switzerland
Sensirion Inc., USA
Sensirion Korea Co. Ltd.
phone: +82 31 337 7700~3
info-kr@sensirion.com
www.sensirion.co.kr
phone: +1 805 409 4900
info_us@sensirion.com
www.sensirion.com
phone: +41 44 306 40 00
Sensirion Japan Co. Ltd.
phone: +81 3 3444 4940
info-jp@sensirion.com
www.sensirion.co.jp
Sensirion China Co. Ltd.
phone: +86 755 8252 1501
info-cn@sensirion.com
www.sensirion.com.cn
fax:
+41 44 306 40 30
info@sensirion.com
www.sensirion.com
Sensirion Taiwan Co. Ltd.
info@sensirion.com
www.sensirion.com
To find your local representative, please visit www.sensirion.com/contact
www.sensirion.com
Version 1.2 – July 2016
9/9
相关型号：
©2020 ICPDF网 联系我们和版权申明