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DTM-333
Digital Teslameter
Operations Manual
Group3 Technology Ltd.
2 Charann Place, Avondale
Auckland 1026 , New Zealand
PO Box 71-111, Rosebank, Auckland 1348, New Zealand
Phone:
+64 9 828 3358
Fax:
+64 9 828 3357
Email:
sales@group3technology.com
Web:
http://www.group3technology.com
Calibration/Repair:
www.group3technology.com/service
Group3 reserves the right to change the specifications at any time without notice.
GROUP3 TECHNOLOGY LIMITED
Made in New Zealand
WWW.GROUP3TECHNOLOGY.COM
01082018-D333
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Table of Contents
Related Manuals for Group3 DTM-333
Summary of Contents for Group3 DTM-333
- Page 1 PO Box 71-111, Rosebank, Auckland 1348, New Zealand Phone: +64 9 828 3358 Fax: +64 9 828 3357 Email: sales@group3technology.com Web: http://www.group3technology.com Calibration/Repair: www.group3technology.com/service Group3 reserves the right to change the specifications at any time without notice. 01082018-D333 GROUP3 TECHNOLOGY LIMITED WWW.GROUP3TECHNOLOGY.COM...
- Page 2 The DTM-333 is a 3-Axis, 3-Channel Digital Teslameter product of Group3. It uses the same technology with that of a DTM-133 but in a 3- channel, 3-axis configuration. On top of that the external mechanical switches have now been upgraded to give users the ease of operating it using the touch screen interface of a robust 7-inch industrial tablet.
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Page 3: Front Panel
DTM-333 Digital Teslameter Features FRONT PANEL Power Button Press to turn ON and OFF the unit HOME Tab Touch to show the Main Readings screen GRAPH Tab Touch to show and access Graph and configure controls DATA LOG Tab Touch to do data logs and change Date/Time MENU Tab Touch to access the DTM’s manual controls... - Page 4 The DTM-333 Digital Teslameter offers accurate measurement of magnetic flux density, with direct digital readout in tesla or gauss. The instrument is robust, solid and the probes are easy to use. The DTM-333 has been engineered to withstand the severe electrical interference produced by high voltage discharge.
- Page 5 SPECIFICATIONS OF DTM-333 SYSTEM Specifications of each Channel / Axis of DTM-333 with LPT-130 or MPT-132 Hall Probe. Measurements magnetic field density in tesla or gauss Field ranges 0.3 0.6 1.2 3.0 tesla full-scale, 3 6 12 30 kilogauss full-scale, with polarity indication and selectable autoranging maximum calibrated field ±2.2 tesla, ±22 kilogauss...
- Page 6 Digital data format ASCII input commands and output responses Commands requests for field values; setting and inspection of display and control modes; field measurement triggering; entry of numerical values; setting units, output data format, and filter characteristics; test commands. GROUP3 TECHNOLOGY LIMITED WWW.GROUP3TECHNOLOGY.COM...
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Page 7: Order Codes
X substitute cable length in meters, 30 max. m denotes unshielded cable, s denotes shielded cable. Example: LPT-130-2m Accessories Part No. 17000112 3-Axis Probe Holder for MPT-132 / MPT-230 Part No. 17000163 Panel Mount Plates (mounting cheek plates) GROUP3 TECHNOLOGY LIMITED WWW.GROUP3TECHNOLOGY.COM... -
Page 8: Connecting The Hall Probe
The DTM-333 must be used with a Group3 Hall probe. Probe models 3DT-132 (3-axis), 3DT230 (3-Axis), LPT-130, LPT-230, MPT-132, or MPT-230 are the most suitable for use with the DTM-333. The probe may be one supplied with your teslameter, or it may have been obtained separately. -
Page 9: Installation Techniques For Electrically Noisy Environments
INSTALLATION TECHNIQUES FOR ELECTRICALLY NOISY ENVIRONMENTS The DTM-333 is a precision electronic measuring device. Because of the nature of the measurements it is asked to do, it is frequently exposed to conditions that are considerably worse than are normally encountered by precision instruments. Therefore, the teslameter has been carefully engineered to be as immune as possible to sparks and other forms of interference through the use of several kinds of power input filtering and a special high-isolation switchmode power module built into its circuitry. -
Page 10: Getting Started
If unit is to be mounted to a 19” rack, attach the mounting cheeks (optional). If unit is to be installed as a bench unit, lay the DTM-333 in a safe and secure way. Make sure that the DTM is at least 2 meters away from the magnet. - Page 11 Press the desired date and time and a dialogue screen appears. Alternatively, slide your finger to scroll to the desired date and time and press OK to continue. The HOME page screen should look like this. Your DTM-333 is now ready to use. WARNING!!! If no probe is plugged to the DTM, a warning message will appear that indicates “No Probe detected”. Turn off power and UNPLUG power supply and attach the required probe.
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Page 12: Display Map
Ethernet communication is automatically set to ON and DHCP as default when a network is detected using the Ethernet port. Take note of the IP address. To manually input the IP address of your computer, de-select DHCP and input the desired IP address. GROUP3 TECHNOLOGY LIMITED WWW.GROUP3TECHNOLOGY.COM... - Page 13 In your network-connected PC, open your web browser such as Google Chrome and in the URL window, type the IP address followed by the web service port number 8080. Example, 192.168.0.36:8080 From this page, user can send commands to the DTM-333 to get information in real time as well as change its settings. List of Commands:...
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Page 14: Graph Tab
Selecting the AUTO scaling range hides the option to set the lower and upper bounds. Selecting the UNIPOLAR scaling range hides the lower bound while selecting BIPOLAR scaling range gives you the option of setting the lower and upper bounds. User can also set the readings to ZERO to clear residual fields. GROUP3 TECHNOLOGY LIMITED WWW.GROUP3TECHNOLOGY.COM... - Page 15 User can also set an offset if user needs to add or subtract a field value to set as benchmark field. User can erase the offset that was added to return to the original field reading. Press OK to save and exit the configuration dialogue box or press Cancel to exit without saving the configured settings. GROUP3 TECHNOLOGY LIMITED WWW.GROUP3TECHNOLOGY.COM...
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Page 16: Data Log Tab
C. DATA LOG Tab The DTM-333 has the capability to data log a field measurement session. This feature makes field measurement quite easy and eliminates the use of additional computer and specialized software to do the operation. All the user need is a USB memory stick (at least 4 GB and max 256 GB) to save the file. - Page 17 Session details will be displayed in the screen. To Change System DATE and TIME In case you need to change the date and time setting, press the date and time” and display will pop up to change the date and time. GROUP3 TECHNOLOGY LIMITED WWW.GROUP3TECHNOLOGY.COM...
- Page 18 • GET GENERAL FUNCTION – Press to show current function of a channel either in DC or AC. • ERASE PEAK HOLD VALUE – Press to erase the peak hold value of a channel. • RESTART DTM SOFTWARE – Press to power cycle the DTM unit. GROUP3 TECHNOLOGY LIMITED WWW.GROUP3TECHNOLOGY.COM...
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Page 19: Filtering Tab
Field measurements are made at a fixed rate of 30 per second, so P = 0.033. With the default value of J = 8, the filter time constant is 0.25 seconds. This gives a cut-off frequency in the displayed field reading of 0.64Hz. GROUP3 TECHNOLOGY LIMITED WWW.GROUP3TECHNOLOGY.COM... - Page 20 • GET CALIBRATED READING BEFORE PROBE CORRECTION - Press to get the calibrated reading before probe correction (after DTM internal calibration) of a channel. • SET ZERO – Press to set the zero offset for the currently selected range GROUP3 TECHNOLOGY LIMITED WWW.GROUP3TECHNOLOGY.COM...
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Page 21: Display Messages
• ALL OTHER ERRORS – if unit is still misbehaving or not operating correctly after doing a reset, kindly contact Group3 through our website www.group3technology.com/service or email service@group3technology.com for advice. GROUP3 TECHNOLOGY LIMITED... -
Page 22: Limited Warranty
LIMITED WARRANTY Group3 Technology Ltd. (hereinafter called the Company) warrants instruments and other products of its manufacture to be free from defects in materials and workmanship that adversely affect the product's normal functioning under normal use and service for a period of one year from the date of shipment to the purchaser. - Page 23 Copyright 2018 G3 333- V1.13 150517 www.group3technology.com GROUP3 TECHNOLOGY LIMITED WWW.GROUP3TECHNOLOGY.COM...
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