Download
Share
Print this page
  1. Manuals
  2. Brands
  3. Measurement Computing Manuals
  4. Data Loggers
  5. WebDAQ 504
  6. User manual

Measurement Computing WebDAQ 504 User Manual

Hide thumbs Also See for WebDAQ 504:

Advertisement

Quick Links

Download this manual
WebDAQ 504 User's Guide
September 2019. Rev 4
Contents
About this User's Guide
Introducing the WebDAQ 504
Se ng up the WebDAQ
Func onal Details
Specifica ons
EU Declara on of Conformity
Trademark and Copyright Informa on
Measurement Compu ng Corpora on, InstaCal, Universal Library, and the Measurement Compu ng logo are
either trademarks or registered trademarks of Measurement Compu ng Corpora on. Refer to the Copyrights &
Trademarks sec on on
mccdaq.com/legal
for more informa on about Measurement Compu ng trademarks.
Other product and company names men oned herein are trademarks or trade names of their respec ve
companies.
© Measurement Compu ng Corpora on. All rights reserved. No part of this publica on may be reproduced,
stored in a retrieval system, or transmi ed, in any form by any means, electronic, mechanical, by photocopying,
recording, or otherwise without the prior wri en permission of Measurement Compu ng Corpora on.
No ce
Measurement Compu ng Corpora on does not authorize any Measurement Compu ng Corpora on product
for use in life support systems and/or devices without prior wri en consent from Measurement Compu ng
Corpora on. Life support devices/systems are devices or systems that, a) are intended for surgical implanta on
into the body, or b) support or sustain life and whose failure to perform can be reasonably expected to result in
injury. Measurement Compu ng Corpora on products are not designed with the components required, and are
not subject to the tes ng required to ensure a level of reliability suitable for the treatment and diagnosis of
people.
About this User's Guide
This user's guide describes the Measurement Compu ng WebDAQ 504 data acquisi on device, the WebDAQ
web interface, and lists device specifica ons.

Advertisement

loading
Need help?

Need help?

Do you have a question about the WebDAQ 504 and is the answer not in the manual?

Questions and answers

Related Manuals for Measurement Computing WebDAQ 504

Summary of Contents for Measurement Computing WebDAQ 504

  • Page 1 About this User's Guide This user's guide describes the Measurement Compu ng WebDAQ 504 data acquisi on device, the WebDAQ web interface, and lists device specifica ons.
  • Page 2 Hazardous voltages Take the following precau ons if you connect hazardous voltages to the WebDAQ 504. A hazardous voltage is a voltage greater than 42.4 Vpk or 60 VDC to earth ground. Ensure that hazardous voltage wiring is performed only by qualified personnel adhering to local electrical standards.
  • Page 3 WebDAQ 504 User's Guide Introducing the WebDAQ 504 The WebDAQ 504 is part of the WebDAQ Series of Internet enabled data loggers. WebDAQ 504 is a vibra on/acous c data acquisi on and logging device that provides the following features:...
  • Page 4 WebDAQ 504 User's Guide Func onal block diagram Device func ons are illustrated in the block diagram shown here. Figure 1. Func onal block diagram Saving large data files If you expect to acquire a large amount of data to a single file when logging to external media, do not use media forma ed with the FAT32 file system.
  • Page 5 Connec ng to a local area network The WebDAQ 504 requires a TCP/IP connec on to a network or the Ethernet port of a computer. A standard Ethernet cable is shipped with the device. The WebDAQ IP address type is set by default for DHCP/Link-Local.
  • Page 6 WebDAQ 504 User's Guide Detec ng the device on a network WebDAQ uses the "zeroconf" zero-configura on protocol to announce its presence on a local area network. Zeroconf uses a device name which can be accessed from other computers on the network.
  • Page 7 WebDAQ 504 User's Guide Configuring the WebDAQ for wireless communica on Once communica on is established on a wired network, you can connect a WiFi adapter to the USB port and use the web interface to configure the WebDAQ for communica on over a wireless network. With the WebDAQ connected through the wired connec on, perform the following procedure.
  • Page 8 WebDAQ 504 User's Guide Security Use the web interface to set the level of access to the website and to change the administrator password. High: access to the web page requires a password. Medium: access to the web page is permi ed for any user, and data can be read by any user, but changes to the device configura on or files require a password.
  • Page 9 WebDAQ 504 User's Guide Func onal Details Front panel components Figure 3. Front panel Screw terminal BNC connectors Screw terminal Connect up to four digital I/O lines (DIO0 to DI03) to the detachable screw terminal. Figure 4. Screw terminal pinout The digital ground (GND) terminals provide a common ground for the digital bits.

  • Page 10: Table Of Contents

    Analog signal connec ons You can connect ground-referenced or floa ng signal sources to the WebDAQ 504. Use a floa ng connec on to minimize ground noise. If you make a ground-referenced connec on between the signal source and the WebDAQ 504, make sure the voltage on the AI–...

  • Page 11: Power Bu On

    WebDAQ 504 User's Guide Power bu on The bu on labeled POWER turns the WebDAQ device on and off. WebDAQ hardware is designed with a 2-pin jumper (W1) that users can remove to con nuously power the device. The behavior of the POWER bu on when jumper W1 is installed or removed is listed in the following table.
  • Page 12 WebDAQ 504 User's Guide LED status indicators The WebDAQ has four LEDs on the rear panel that indicate the status of power and host communica ons. The following table defines the LED states during normal opera on. LED states – normal opera ng mode...

  • Page 13: Sd Card Slot

    WebDAQ 504 User's Guide WebDAQ LEDs behave differently when so ware is updated on the device. The following table defines the LED states during a so ware update. LED states – so ware update mode State Descrip on All LEDs...

  • Page 14: Usb Connectors

    The WebDAQ 504 uses common-mode bias current to bias the current-limi ng diodes when IEPE current is turned off. When the WebDAQ 504 is using grounded signal sources, the current causes an error that is dependent on the AI– lead impedance, and is approximately 50 ppm of range and 15 ppm of reading per Ω of AI–...
  • Page 15 51.2 kS/s, 25.6 kS/s, 17.067 kS/s, and so on, down to 1.652 kS/s, depending on the value of n. An -aliasing filters The WebDAQ 504 uses a combina on of analog and digital filtering to provide an accurate representa on of in- band signals while rejec ng out-of-band signals. The filters discriminate between signals based on the frequency range, or bandwidth, of the signal.
  • Page 16 Alias-free bandwidth Any signal that appears in the alias-free bandwidth of the WebDAQ 504 is not an aliased ar fact of signals at a higher frequency. The alias-free bandwidth is defined by the ability of the filter to reject frequencies above the stopband frequency, and it is equal to the data rate minus the stopband frequency.
  • Page 17 WebDAQ 504 User's Guide Power-On Mode WebDAQ Series hardware can be configured to start automa cally when power is applied, instead of requiring users to press the POWER bu on. This is useful if the WebDAQ is opera ng in a remote loca on and a power loss occurs.
  • Page 18 WebDAQ 504 User's Guide Enabling power-on mode with a complex or date/ me triggered schedule When running a complex or date/ me-triggered schedule with both power-on mode and auto start schedule enabled, be aware that the schedule may not run automa cally a er a power cycle if the date or me trigger is no longer valid.
  • Page 19 WebDAQ 504 User's Guide Specifica ons All specifica ons are subject to change without no ce. Analog input Table 1. Analog input specifica ons Parameter Condi on Specifica on Number of 4 analog input channels channels ADC resolu on 24 bits Type of ADC Delta-Sigma (with analog prefiltering)
  • Page 20 (Vcommon-mode + Vbias ± Vfull-scale) must be 0 to 19, where Vcommon-mode is the common-mode voltage applied to the WebDAQ 504. Vbias is the bias voltage of the IEPE sensor. Vfull-scale is the full-scale voltage of the IEPE sensor.
  • Page 21 WebDAQ 504 User's Guide Table 4. Total harmonic distor on (THD) specifica ons Input Amplitude Condi on Specifica on Input amplitude –1 dBFS 1 kHz: –95 dB 8 kHz: –87 dB –20 dBFS 1 kHz: –95 dB 8 kHz: –80 dB...
  • Page 22 WebDAQ 504 User's Guide Note 4: The external pull-up resistor is connected between the digital output bit and an external supply. Adding an external pull-up resistor connects it in parallel with the internal 100 kΩ pull-up resistor of that par cular digital input/output bit to the internal 5 V supply.
  • Page 23 WebDAQ 504 User's Guide Factory default se ngs Table 8. Factory default se ngs Parameter Specifica on Factory default IP 192.168.0.101 address Factory default 255.255.255.0 subnet mask Factory default 192.168.0.1 gateway Factory default DHCP + link-local enabled DHCP se ng...
  • Page 24 WebDAQ 504 User's Guide LED indicators Table 12. LED specifica ons – normal opera ng mode Label State Descrip on 1: POWER Steady yellow Device is boo ng up. Steady green Device boot is successful. Blinking yellow Device is shu ng down.
  • Page 25 WebDAQ 504 User's Guide Push bu ons Table 14. Push bu on specifica ons Component Label Descrip on Power bu on POWER W1 jumper installed (factory default) (Note When device is off; press briefly to turn the device on When device is on: Press for ~1 second to shuts down the device;...
  • Page 26 IP30 Opera ng humidity 10 to 90% RH, noncondensing Storage humidity 5% to 95% RH, noncondensing Maximum al tude 2,000 m (6,562 ) Pollu on degree Note 9: WebDAQ 504 opera on is intended for indoor use only. page 26...
  • Page 27 Such voltage measurements include signal levels, special equipment, limited-energy parts of equipment, circuits powered by regulated low-voltage sources, and electronics. Cau on! Do not connect the WebDAQ 504 to signals or use for measurements within Measurement Categories II, III, or IV.
  • Page 28 WebDAQ 504 User's Guide EU Declara on of Conformity EU Declara on of Conformity According to ISO/IEC 17050-1:2010 Manufacturer: Measurement Compu ng Corpora on Address: 10 Commerce Way Norton, MA 02766 Product Category: Electrical equipment for measurement, control and laboratory use.
  • Page 29 WebDAQ 504 User's Guide Measurement Compu ng Corpora on 10 Commerce Way Norton, MA 02766 Phone: 508-946-5100 mccdaq.com/support page 29...