Chell MicroDAQ3 Manual de usuario
Chell Instruments Ltd
Folgate House
Folgate Road
North Walsham
Norfolk NR28 0AJ
ENGLAND
Tel: 01692 500555
Fax: 01692 500088
MicroDAQ3
Pressure Scanner
Acquisition System
INSTALLATION
AND
OPERATING MANUAL
900252-1.4
Page 1
Please read this manual carefully before using the instrument.
Use of this equipment in a manner not specified in this
manual may impair the user’s protection.
Chell Document No. : 900252 Issue 1.4
ECO : xxxx Date: 18/01/2023
Chell’s policy of continuously updating and improving products means that this manual may contain
minor differences in specification, components and software design from the actual instrument
supplied.
Page 2
CONTENTS
1 Description ............................................................................................................................. 4
1.1 General ................................................................................................................................................................... 4
2 Specifications ........................................................................................................................ 5
2.1 Ranges .................................................................................................................................................................... 5
2.2 Power Supply: ........................................................................................................................................................ 5
2.2.1 DC Powered Version ...................................................................................................................................... 5
2.2.2 PoE Version .................................................................................................................................................... 5
2.3 CAN specifications: ................................................................................................................................................ 5
2.4 Ethernet Specifications: .......................................................................................................................................... 5
2.5 Environmental specification: .................................................................................................................................. 5
3 Installation and Interconnections ........................................................................................ 7
3.1 Electrical Connections ............................................................................................................................................ 7
3.1.1 64 channel DC Powered Versions - 9-way micro-miniature ‘D’ type (suggested mate : Glenair
MWDM2L-9PS - solder cup version) ............................................................................................................................ 7
3.1.2 64 channel PoE Powered Versions - 9-way micro-miniature ‘D’ type (suggested mate : Glenair
MWDM2L-9SS - solder cup version) ............................................................................................................................ 7
3.1.3 16 channel DC Powered Versions - 9-way micro-miniature ‘D’ type (suggested mate : Glenair
MWDM2L-9SS - solder cup version) ............................................................................................................................ 7
7
3.2 Pneumatic Connections .......................................................................................................................................... 8
3.2.1 64 channel Valved version ............................................................................................................................. 8
3.2.2 64 channel Valved version with quick disconnect plate ................................................................................ 8
3.2.3 64 channel non-Valved version ...................................................................................................................... 8
3.2.4 64 channel non-Valved version with quick disconnect plate ......................................................................... 9
3.2.5 16 channel version .......................................................................................................................................... 9
3.3 Mounting Features ................................................................................................................................................ 10
3.3.1 64 channel Valved Version .......................................................................................................................... 10
3.3.2 64 channel Non-valved Version ................................................................................................................... 10
3.3.3 16 channel Version ....................................................................................................................................... 10
4 Operation of the instrument ............................................................................................... 11
4.1 Connecting up the MicroDAQ3. .......................................................................................................................... 11
4.1.1 DC Powered Versions .................................................................................................................................. 11
4.1.2 PoE Versions ................................................................................................................................................ 11
4.2 Connecting to the MicroDAQ3 ............................................................................................................................ 12
4.2.1 Connecting to the Webserver ....................................................................................................................... 12
4.2.2 Connecting using the MicroDaq-X Software. .............................................................................................. 12
4.2.3 Connecting to Custom Software (Ethernet and CAN) ................................................................................. 12
4.3 Configuring the MicroDAQ3 ............................................................................................................................... 13
4.4 Re-zeroing the MicroDAQ3. ................................................................................................................................ 13
5 MicroDAQ3 Configuration Webserver ............................................................................... 14
5.1 Introduction. ......................................................................................................................................................... 14
5.2 Common Controls Sidebar ................................................................................................................................... 15
5.3 Controls for all variants ........................................................................................................................................ 15
5.4 Controls for valved variant ................................................................................................................................... 15
...................................................................................................................................................................................... 15
5.4.1 The 'Setup Parameters' Page ......................................................................................................................... 16
5.4.2 Introduction .................................................................................................................................................. 16
5.4.3 Data Streaming ............................................................................................................................................. 16
5.4.4 TCP Parameters ............................................................................................................................................ 16
5.4.5 UDP Parameters ........................................................................................................................................... 17
5.4.6 CAN Parameters ........................................................................................................................................... 18
5.5 ‘Live Data’ Page ................................................................................................................................................... 19
5.5.1 ‘Live Data’ Page Valve Position Descriptor ................................................................................................ 20
5.6 ‘Advanced’ Page .................................................................................................................................................. 20
5.6.1 Advanced communication settings ............................................................................................................... 20
Page 3
5.6.2 Miscellaneous ............................................................................................................................................... 22
5.6.3 Zero Coefficients .......................................................................................................................................... 23
5.7 Timestamp ............................................................................................................................................................ 24
6 Timing and The Acquisition Cycle ..................................................................................... 25
6.1 The MicroDAQ3 Acquisition Cycle .................................................................................................................... 25
6.1 Sensor Response Modes ....................................................................................................................................... 25
6.2 The MicroDAQ3 Data Output Cycle ................................................................................................................... 26
6.3 Averaging ............................................................................................................................................................. 26
6.4 Averaging and Time Stamping ............................................................................................................................. 27
7 Hardware Trigger ................................................................................................................. 28
7.1 Hardware Trigger Input. ....................................................................................................................................... 28
7.2 Timing Information .............................................................................................................................................. 28
7.3 Web server control ............................................................................................................................................... 28
7.4 Software Control .................................................................................................................................................. 28
7.5 The Hardware Trigger and System Timing .......................................................................................................... 29
8 Service and Calibration ....................................................................................................... 30
8.1 Service .................................................................................................................................................................. 30
8.2 Calibration ............................................................................................................................................................ 30
8.3 Adjustment ........................................................................................................................................................... 30
8.4 Cleaning ................................................................................................................................................................ 30
Page 4
1 Description
1.1 General
The MicroDAQ3 is a self-contained pressure scanner that acquires and transmits pressure
data to a host via Ethernet or a CAN bus. The MicroDAQ3 fits into the Chell pressure scanner
range alongside the established microDAQ, microCAT and nanoDaq-LT range.
The MicroDAQ3-64 comes in a number of variants; the first of these is the option to include
a purge / calibration valve. The other is the electrical interface which can either be power-
over-ethernet or a conventional DC supply. The microDAQ3-16 is currently only available as
DC. The CAN and hardware trigger features discussed in this manual are only available on
the DC powered versions.
The combination of high-precision digital transducers and Chell’s calibration technology have
resulted in the most accurate and flexible pressure scanners available on the market.
The device has the ability to output absolute pressures or differential pressures by using
additional reference sensors, the 65th and 66th reference channels for the 64 channel variant
and 17th channel for the 16 channel variant.
The MicroDAQ3s are configured using their embedded web-servers. The output stream can
be configured in a number of ways including averaging, transmission speed, absolute or
differential and also the ability to add a time stamp to the data. Compliance with IEEE1588
PTP V2 and a hardware trigger facility give a good level of time determination for the acquired
data.
This manual revision covers microDAQ3-64 firmware version 1.0.9 and microDAQ3-16
firmware version 1.0.4.
Page 5
2 Specifications
2.1 Ranges
The MicroDAQ3 is available in the following ranges:
Differential Range
MicroDAQX
Range
Code (PSI)
Absolute Range
MicroDAQX
Range Code
4” water
1 kPa
0.144509
2.2 to 16.8 psia
15 to 115 kPa
2(a)
10” water
2.5 kPa
0.362173
20” water
5 kPa
0.722541
1 psi
7 kPa
1
1.5 psi
10 KPa
1.5
2.5 psi
17 kPa
2.5
5 psi
35 kPa
5
8 psi
55 kPa
8
1.885 to 23.2 psia
13 to 160 kPa
8(a)
15 psi
103 kPa
15
2.2 to 29.9 psia
15 to 206 kPa
15(a)
30 psi
207 kPa
30
2.2 to 58.01 psia
0 to 400 kPa
45 psi
310 kPa
45
2.2 Power Supply:
2.2.1 DC Powered Version
Line voltage:
8-30 Vdc
Absolute Max. Line voltage
30Vdc
Consumption:
Max 1W (non-valved), 4W (valved version)
2.2.2 PoE Version
PoE Standard:
802.3at Type 1 (Previously 802.3af)
2.3 CAN specifications:
CAN type
2.0B
CAN baudrate
Configurable from 1M, 500K, 125K and 100K.
Programmable variables:
Address 0x?nn
Most significant programmable device ID
Address 0xn?n
Next most significant programmable device ID
BRP
CAN bus timing
TSEG1
CAN bus timing
TSEG2
CAN bus timing
SJW
CAN bus timing
2.4 Ethernet Specifications:
TCP/IP
10Mb/s & 100Mb/s via Auto Negotiation
TCP & UDP protocols supported
2.5 Environmental specification:
Page 6
Operating temperature range:
-40°C to +90°C
Storage temperature range:
-40°C to +90°C
Maximum Relative humidity:
95% at 50°C (non condensing)
Ambient altitude
100 mbar abs or nominally 52000 ft
Vibration
Engine standard vibration test to DO160E category S,
curve W with duration of 1 hr/axis. Fan blade out case
to DO160E category S, curve P.
Fan blade out to DO160F section 7 (40g 11m/s)
Engine load to +/- 40g per axis
Radiated emissions
MIL standard 461-E: RE102
Conducted emissions
MIL standard 461-E/MIL standard 461-C
Page 7
3 Installation and Interconnections
3.1 Electrical Connections
3.1.1 64 channel DC Powered Versions - 9-way micro-miniature ‘D’ type
(suggested mate : Glenair MWDM2L-9PS - solder cup version)
3.1.2 64 channel PoE Powered Versions - 9-way micro-miniature ‘D’ type
(suggested mate : Glenair MWDM2L-9SS - solder cup version)
3.1.3 16 channel DC Powered Versions - 9-way micro-miniature ‘D’ type
(suggested mate : Glenair MWDM2L-9SS - solder cup version)
Pin 1
0v
Pin 2
Ethernet Rx+
Pin 3
CAN Low
Pin 4
Ethernet Tx+
Pin 5
+ Supply (8-25 VDC)
Pin 6
Trigger in (TTL)
Pin 7
Ethernet Rx-
Pin 8
Ethernet Tx-
Pin 9
CAN high
Pin 1
ETH BI_DD+
Pin 2
ETH BI_DA+ (TX+)
Pin 3
n/c
Pin 4
ETH BI_DB+ (RX+)
Pin 5
ETH BI_DC-
Pin 6
ETH BI_DD-
Pin 7
ETH BI_DA- (TX-)
Pin 8
ETH BI_DB- (RX-)
Pin 9
ETH BI_DC+
Pin 1
0v
Pin 2
Ethernet Rx+
Pin 3
CAN Low
Pin 4
Ethernet Tx+
Pin 5
+ Supply (8-25 VDC)
Pin 6
Trigger in (TTL)
Pin 7
Ethernet Rx-
Pin 8
Ethernet Tx-
Pin 9
CAN high
Page 8
3.2 Pneumatic Connections
3.2.1 64 channel Valved version
3.2.2 64 channel Valved version with quick disconnect plate
3.2.3 64 channel non-Valved version
Page 9
3.2.4 64 channel non-Valved version with quick disconnect plate
3.2.5 16 channel version
Hot plugging the power to the MicroDAQ3 at the connector can cause permanent
damage to the unit. Always switch the power at the power supply source.
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