Table of Contents
Related Manuals for Pyramid T-1
Summary of Contents for Pyramid T-1
- Page 1 Web-enabled Precision Hall Probe User Guide Pyramid Technical Consultants, Inc. 135 Beaver Street Suite 102, Waltham MA 02452 USA SUPPORT@PTCUSA.COM US: TEL: (781) 402 1700 FAX: (781) 402-1750 EMAIL: Europe: TEL: +44 1273 492002...
-
Page 2: Table Of Contents
T1 Hall Probe System 1 Contents Contents ................................2 Introduction ................................ 4 What’s in the box? ............................. 5 Safety Information ............................. 6 Intended use ................................ 6 Operating environment ............................. 6 Getting started ..............................7 Connecting the parts ............................7 Connecting to a network..........................7 7.2.1 Connecting using a static IP address ...................... - Page 3 T1 Hall Probe System 10.1 Example Python script to collect a specified number of readings from the T-1 ........22 10.2 Example Python script to display the field in large text ................24 Monitor output ..............................26 Utilities ................................29 12.1...
-
Page 4: Introduction
T1 Hall Probe System 2 Introduction Thank you for your purchase of the T-1 Precision Hall probe system. The T-1 allows fast and accurate measurements of magnetic flux density from a compact and cost-effective unit. The active HP-1 probe is made from non-conducting materials to eliminate eddy current effects and uses tightly twisted signal lines and differential signals to give excellent noise immunity. -
Page 5: What's In The Box
T1 Hall Probe System 3 What’s in the box? Unless your order was for a special configuration, you should have received the items shown below. If anything is missing or damaged, please contact your supplier. T1 control unit HP-1 active Hall probe Connecting cable (part CAB-T1-6) Ethernet cable Universal power supply (part PSU24-25-1) -
Page 6: Safety Information
Technical Consultants, Inc. or their authorized distributors. The T-1 unit is designed to operate from +24 VDC power, with a maximum current requirement of 250 mA. The HP-1 probe is powered by the T-1. A suitably rated power supply module is provided. -
Page 7: Getting Started
7.1 Connecting the parts 1) Find the cable that joins the T-1 to the HP-1 probe and connect each end. There is a standard 9-pin DSub connector on the T-1 and a micro D connector on the probe. -
Page 8: Connecting Using A Static Ip Address
The T-1 is normally supplied set up with a specific static IP address. This address is given on the configuration sheet supplied with the unit. However, you can request a specific static address to be set and enabled when you place your order. - Page 9 If you look at the amber and green LEDs on the T-1 Ethernet port and the cable is connected, you will see the amber light on and the green flickering when the T-1 is communicating. Now open a web browser such as Chrome, Edge, Firefox, Safari and type the static address of the T-1 into the URL field.
-
Page 10: Connecting Using Dhcp Address Assignment
T1 Hall Probe System 7.2.2 Connecting using DHCP address assignment The local network must have a router to use this method. Using a standard Ethernet patch cable, connect the T-1 to the router or to a switch on the network. Switch Router... - Page 11 T1 Hall Probe System To allow the T-1 to get an address from the router, it must be setup for DHCP. Open the “Network <···>” dialog from the link at the bottom of the T-1 web page: Set the DHCP control on and click “Apply ”.
- Page 12 IP addresses that are assigned to the MAC IDs of devices in the network address table. Now you have the IP address of the T-1 you can enter it in the url field of a web browser to open the T-1 web page.
-
Page 13: The Web Browser Gui
8.1 Data display and controls The T-1 web GUI displays the magnetic field in units of Gauss. To convert to units of Tesla, divide the readings by 10,000. The T-1 is simple to operate with only two settings that affect data acquisition. -
Page 14: Sampling Rate
Use 10 Hz sampling to remove any effect of line voltages (50 or 60 Hz) on the readings. 8.1.2 Measurement range The standard HP-1 active probe supplied with the T-1 measures up to +/- 28 kGauss, which is +/- 2.8 Tesla. Three more sensitive ranges are provided for measuring smaller fields, +/-7.0 kGauss (0.7 T), +/-2.8 kGauss (0.28 T) and +/-700 Gauss (70 mT). -
Page 15: Zero Offset
Clicking the “Zero” button stores the most recent reading and subtracts it from subsequent readings. The value being subtracted is displayed. The zero offset is applied to all client computers watching the T-1. To return to normal measuring, click “Clear”. CAUTION A high magnetic field may be present but hidden by zero offset. -
Page 16: Exporting Data
T1 Hall Probe System 8.1.6 Exporting data Clicking the Export button freezes the data buffer and opens a dialog that allows you to store the buffer contents in csv format. The resulting file can be opened by any software that can read a csv format file, such as a spreadsheet program. - Page 17 NOTE The T-1 gets the current date after a reboot if it can connect to a time server over the internet. If it cannot connect, it sets the current date to the start of year 2000 as a default. Remember this if you are use timestamps with the full date.
-
Page 18: Making Measurements
T1 Hall Probe System 9 Making measurements 9.1 Mounting the probe The HP-1 probe should be mounted so that the sensitive spot is located in the field you want to measure. Two clear holes for M4 screws are provided on the probe mounting flange to allow a stable position. -
Page 19: Cable Length
9.2 Cable length The HP-1 probe includes active electronics that boost the signal from the Hall element and send it to the T-1 in differential form. This permits a relatively long connection which may be helpful for some installations. The standard probe cable is 6 foot (1.8 m) long. To increase the cable length, simply add a good quality 9-way screened cable terminated in a 9-pin DSub male at one end and 9-pin DSub female at the other. - Page 20 The T-1 analog to digital converter has 16 bit resolution, or 15 bits for each of positive and negative polarity fields. For the example data below, the range setting for the permanent magnet measurement was changed from 7 kGauss to 28 kGauss.
- Page 21 T1 Hall Probe System sampling rates. Reducing the sampling rate increases the effective resolution of the digitization so that the digitization effects disappear. To avoid encountering digitization effects in your data, use a more sensitive range where possible, and a lower sampling rate. T1 User Guide T1_UG_210314 Page 21 of 42...
-
Page 22: Using Your Own Software
T1 Hall Probe System 10 Using your own software The web interface of the T-1 allows computers, tablets and phones running different operating systems to communicate and take data. It also allows simple connection to other software running on those devices. The JSON format can be used to import data. In Python this could be done as follows to create a floating point value “vala”. - Page 23 T1 Hall Probe System # Define range settings b_ranges = ['28 kG','7 kG','2800 G','700 # Get range setting and translate t1_range = requests.get(t1_ip + "/io/t1/configuration/range_select/value.json") t1_range = t1_range.json() t1_range = int(t1_range)-1 t1_range = b_ranges[t1_range] # Get sample rate setting t1_rate = requests.get(t1_ip + "/io/t1/configuration/rate/value.json") t1_rate = t1_rate.json() # Print header lines to console print...
-
Page 24: Example Python Script To Display The Field In Large Text
T1 Hall Probe System 10.2 Example Python script to display the field in large text import import requests # Call to html server import time # Timestamps import tkinter from tkinter import # Initial prompts in console print ("\nT1 BIG FIELD DISPLAY"), print # Get IP address for device here defipaddr =... - Page 25 T1 Hall Probe System # Loop to get repeat readings draw(): global B_val B_val=Label(B_window,text=vala+" "+Units,height=1,width=16,justify="right",bd=8,font='Courier bold',bg='black',fg='green2',relief='ridge',padx=32,pady=16) B_val.grid(row=0, column=0) updater(): # Update field value # Set up flashing heartbeat global pls, plsCtr tic = pls[plsCtr+1] plsCtr = -plsCtr # Get field reading and format ra = requests.get(t1B_url) vala = ra.json() vala = vala * UnitMult...
-
Page 26: Monitor Output
11 Monitor output The T-1 can generates an analog voltage in the range -10 V to +10 V which is available on the BNC connector next to the probe connector. The voltage is on the central pin of the BNC connector with respect to the screen of the BNC. - Page 27 11.3 Monitor mode: PID The PID mode allows the T-1 to act as a servo controller for electromagnets. This allows the magnet to be commanded to a specific exact field value, as measured by the T-1 probe. The accuracy and stability of the field setting is limited only by the accuracy, precision and stability of the field reading.
- Page 28 The PID controls are accessed through the Tune PID link. Contact Pyramid or your supplier if you plan to set up and tune a servo controller for an electromagnet.
-
Page 29: Utilities
12 Utilities 12.1 Software updates Pyramid issues updates to the T-1 embedded software to add new features and fix bugs. The update is provided as a compressed file with a name that includes the version ID number such as “IGX_1614813277.tar.gz”. The new firmware can be uploaded from the Admin pop-up. -
Page 30: Device Name
12.2 Device name You can give your T-1 a unique device name that will help you to identify it in a network. Enter the name in the Device Name field in the Admin pop-up. When you reboot the device, you will see the new name. -
Page 31: Accessing Support
T1 Hall Probe System 12.5 Accessing support If your T-1 is on a network with an internet connection, then clicking the Support button will take you directly to the Pyramid Help centre. Here you can post requests for new features, bug reports and general questions about using the T-1. -
Page 32: Some Background About Magnetic Measurements
. The permeabilities of other materials are expressed relative to this. In ferromagnetic materials the relative permeability may be hundreds or thousands. Air has a relative permeability of very nearly one, so when you measure the B field with the T-1 system, you also get the H field in A m after division by µ... -
Page 33: Field Vectors
T1 Hall Probe System 13.2 Field vectors The B field is a vector field, which you can decompose at any point into three orthogonal components. Magnetic field lines by convention to point from the north pole to the south pole of a magnet. - Page 34 T1 Hall Probe System across the terminals that is the negative of the rate of change of B integrated over the surface area of the loop. We can assume that the loop area is small enough that B is constant over its area, so we have ...
-
Page 35: Fault-Finding
Zero offset is in effect Check offset value shown. Clear zero offset Calibration incorrect or Check reading of a known Contact supplier or Pyramid corrupted field. Technical Consultants, Inc. to arrange recalibration Mechanical stress on probe Check mounting arrangement. - Page 36 MAC ID. in the client device. Bad Ethernet cable. Try another cable. Correct cabling. SD card not in slot in T-1 or Contact supplier for advice. does not have correct T1 User Guide T1_UG_210314 Page 36 of 42...
- Page 37 Random changes to settings Another client is Look for other clients. If there Run a single client only if communicating with the T-1. is a VPN access, turn this off. changes cannot be allowed. Make a direct connection to Use a direct connection.
-
Page 38: Maintenance
The T-1 system does not require routine maintenance. There are no user-serviceable parts inside the case of the control unit. The calibration of the T-1 is very stable. However if you require re-calibration of the unit, traceable to a reference standard, please contact Pyramid Technical Consultants to arrange a return. -
Page 39: Returns Procedure
16 Returns procedure Damaged or faulty units cannot be returned unless a Returns Material Authorization (RMA) number has been issued by Pyramid Technical Consultants, Inc. If you need to return a unit, contact Pyramid Technical Consultants at support@ptcusa.com, stating - model... -
Page 40: Support
T1 Hall Probe System 17 Support Manual and software driver updates are available for download from the Pyramid Technical Consultants website at www.ptcusa.com. Technical support and access to the Pyramid feature request and bug tracking system is available through the Pyramid website at https://pyramidtc.atlassian.net/servicedesk/customer/portal/1. -
Page 41: Disposal
T1 Hall Probe System 18 Disposal We hope that the T-1 and HP-1 give you long and reliable service. The product is manufactured to be compliance with the European Union RoHS Directive 2002/95/EC, and as such should not present any health hazard. Nevertheless, when your product has reached the end of its working life, you must dispose of it in accordance with local regulations in force. -
Page 42: Revision History
T1 Hall Probe System 19 Revision history The release date of a Pyramid Technical Consultants, Inc. user guide can be determined from the document file name, where it is encoded yymmdd. For example, T1_UG_200705 would be a T1 user guide released on 5 July 2020.