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AEMC instruments 8510 User Manual

Digital transformer ratiometer
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8510
DIGITAL TRANSFORMER
®
RATIOMETER (DTR
)
E N G L I S H
User Manual
1.800.561.8187
information@itm.com
www.
.com

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  • Page 1 8510  DIGITAL TRANSFORMER ® RATIOMETER (DTR E N G L I S H User Manual 1.800.561.8187 information@itm.com www. .com...
  • Page 2 For recalibration, please use our calibration services. Refer to our repair and calibration section at Serial #: ________________________________ Catalog #: 2136.50 Model #: 8510 Please fill in the appropriate date as indicated: Date Received: _________________________________ _______________________ Date Calibration Due: 1.800.561.8187 information@itm.com...

  • Page 3: Table Of Contents

    1.4.1 Accessories and Replacement Parts ......5 2. PRODUCT FEATURES ................. 6 2.1 Description ................6 2.2 Control Features ...............8 2.3 Cable Identification ..............9 3. SPECIFICATIONS ................10 8510 Specifications ............10 3.1 DTR ® 3.2 Battery Charger Specifications ..........12 4. DISPLAY FUNCTIONS ............... 13 4.1 Program Flow .................13 4.2 Top Level Menu ..............13 4.3 Configure Instrument ..............14...
  • Page 4 SOFTWARE ..............39 7.1 Installing DataView ® ..............39 7.2 Opening the Control Panel .............41 7.3 Using the Control Panel ............42 7.4 Configuring the DTR ® 8510 ............44 7.5 Running a Test ................47 7.6 Downloading a Test ..............48 7.7 Saving the Measurement Records .........49 7.8 Report Generation ..............49 8. MAINTENANCE ................51 8.1 Charging the Batteries ............51 8.2 Cleaning ..................54 APPENDIX: DISPLAY MESSAGES ............

  • Page 5: Introduction

    • This instrument is protected from accidental voltages of not more than 50V with respect to earth. The guaranteed level of protection of this equipment may be compromised if used in a manner not specified by the manufacturer. • Read the instruction manual completely and follow all safety information before attempting to use or service this instrument. ® • The Digital Transformer Ratiometer DTR Model 8510 is designed for use on de-energized (“dead”) transformers only. Make sure the test sample is completely disconnected from AC power and is fully discharged. ® • Only qualified personnel should use the DTR 8510 . 8510 must not be used in a manner in which any of ® • The DTR its components (including test cables) are relied upon to provide protection from electric shock. No high voltage insulation/...

  • Page 6: International Electrical Symbols

    CAT IV: For measurements performed at the primary electrical supply (<1000V) such as on primary overcurrent protection devices, ripple control units, or meters. CAT III: For measurements performed in the building installation at the distri- bution level such as on hardwired equipment in fixed installation and circuit breakers. CAT II: For measurements performed on circuits directly connected to the electrical distribution system. Examples are measurements on household appliances or portable tools. ® Digital Transformer Ratiometer DTR Model 8510 1.800.561.8187 information@itm.com www. .com...

  • Page 7: Receiving Your Shipment

    Ordering Information ® Digital Transformer Ratiometer DTR Model 8510 ..Cat. #2136.50 Includes NiMH batteries (installed), 115V power cord, set of two 15 ft leads, 10 ft USB cable, external battery charger (90-264V 50/60Hz), soft carrying case, DataView ®...

  • Page 8: Product Features

    CHAPTER 2 PRODUCT FEATURES Description Model 8510 is a lightweight, The Digital Transformer Ratiometer DTR ® rugged, portable instrument designed for onsite testing of power, potential and current transformers. 8510 is fully automatic. No user calibration, range Operation of the DTR ® selection, hand cranking or tedious balancing is required. During each test cycle, the DTR ® 8510 automatically checks for: • H/X lead reversal • Continuity of tested circuits/windings (if configured) • Short circuit conditions (high current) Upon completion of a test cycle, the DTR ®...
  • Page 9 ® The DTR ® 8510 utilizes an advanced, low-voltage, step-down measure- ment technique in which the high voltage “H” windings are subjected to test excitation. This results in greater operator safety and the ability to test a much wider array of transformer types and sizes.

  • Page 10: Control Features

    USE ONLY ON DE-ENERGIZED TRANSFORMERS OFF/ CHARGE CONTRAST ENTER 50V CAT IV TEST DIGITAL TRANSFORMER RATIOMETER ® MODEL 8510 1. Display: Displays data, status and control features of the instrument. 2. USB Connector: Allows connection to a computer for instrument configuration set-up and status check, downloading of the stored software and running a test.. ® data using the DataView 3. High-side “H” Cable Connector (primary): Connection for the primary side of the transformer. 4. Low-side “X” Cable Connector (secondary): Connection for the secondary side of the transformer.

  • Page 11: Cable Identification

    "X" IDENTIFIER 3 PIN CONNECTOR X CABLE SET "X" IDENTIFIER BLACK INLINE PLUG Each cable is clearly marked. The Primary (H) cable has a 5-pin connector and the Secondary (X) cable has a 3-pin connector. They cannot inadvertently be connected incorrectly. ® Digital Transformer Ratiometer DTR Model 8510 1.800.561.8187 information@itm.com www. .com...

  • Page 12: Specifications

    CHAPTER 3 SPECIFICATIONS Reference Conditions: 23°C ± 5°C (30 to 50% RH) range. Add 25 ppm /°C from -10° to 18°C and 28° to 50°C to all accuracy specifications. No external electrical or magnetic fields. Output current ≤150 mA for VT/PT and ≤ 50mA for CT. Calibration cycle is 1 year. ® 8510 Specifications ® 8510 ELECTRICAL Ratio Range (VT/PT) Autoranging: 0.8000 to 8000:1 Accuracy (VT/PT) Ratio Range Accuracy (% of Reading) 0.8000 to 9.9999...
  • Page 13 10 to 85% RH @ 35°C Altitude Up to 2000 meters (6560 ft) SAFETY Safety Rating EN 61010-1; 50V CAT IV; Pollution Degree 2 Double Insulated Specifications are subject to change without notice. ® Digital Transformer Ratiometer DTR Model 8510 1.800.561.8187 information@itm.com www. .com...

  • Page 14: Battery Charger Specifications

    Battery Charger Specifications ® 8510 BATTERY CHARGER ELECTRICAL No-load Voltage 41V ±2V Fast Charge Current 0.9A ±70mA Top-off Charge 130mA ±40mA Charge Termination Options -dV, dT/dt Input Rating 90 to 264V /47 to 63Hz Maximum Output Power Trickle Charge Current 50mA ±25mA...

  • Page 15: Display Functions

    In order to use the instrument efficiently, it is important to understand the program flow. • Pressing the ▼ and ▲ keys simultaneously allows going up one level (if there is a level) in the program flow. (Vertical navigation moving up a level). • Pressing the ▼ or ▲ key allows navigation within the level. (Horizontal navigation). • Pressing the ENTER key allows the selection and display of choices one level below (if there is a level) in the program flow. (Vertical navigation moving down a level). Top Level Menu The instrument has a top level control as shown in Fig. 4-1. The user can navigate around the ring by pressing the ▼ or ▲ key. Main Screen Configuration Recall Data Figure 4-1 Once the instrument is turned on, it initializes and then displays the Main Screen: Figure 4-2 ® Digital Transformer Ratiometer DTR Model 8510 1.800.561.8187 information@itm.com www. .com...

  • Page 16: Configure Instrument

    Figure 4-3 • Set Clock: Allows the setting of Time and Date. • Setup Nameplate: Allows selection and editing of Present Nameplate voltages or ratios. Predefined ratios can only be edited ® through DataView • Select Test Type: Allows the selection of Test Type (VT/PT or CT). • Select Test Mode: Allows selection of the Test Mode (Ratio or Continuity/ Ratio in VT/PT Mode). • Select Storage Mode: Allows the selection of data storage mode (Automatic or Manual). ® Digital Transformer Ratiometer DTR Model 8510 1.800.561.8187 information@itm.com www. .com...
  • Page 17 NOTE: To move one level up and return to Configure Instrument , press the ▼ ▲ keys simultaneously. Clock Select Setup Language Nameplate Select Erase Memory Test Type Select Select Filter Test Mode Select Storage Mode Figure 4-4 ® Digital Transformer Ratiometer DTR Model 8510 1.800.561.8187 information@itm.com www. .com...

  • Page 18: Set Clock

    Clock appears on the display, then press ENTER. Figure 4-5 The Set Clock configuration allows you to format the following: Date Format: Allows the formatting of the date. (MM/DD/YY, DD/MM/YY, YY/MM/DD). Figure 4-6 Time Format: Allows the formatting of the time (12 or 24 hours). Figure 4-7 Set Date and Time: Allows the setting of the date and time in the selected format. Note: Time must be set in the 24-hour format. It will be displayed with AM/ PM if the 12-hour format is chosen. Figure 4-8 Example: To set the time to 2:50 PM, set the hour to 14 and the minutes to 50. ® Digital Transformer Ratiometer DTR Model 8510 1.800.561.8187 information@itm.com www. .com...

  • Page 19: Setup Nameplate

    Nameplate values are primary and secondary voltages (or ratios) associated with a given transformer. This information is available on the Nameplate of the transformer. The measured results will be compared with selected (edited) Nameplate values and Deviation will be displayed and stored in % relative to these values. 8510 allows the storage of 10 Nameplate voltages or ratios ® The DTR which can be individually selected for a given test. NOTE: • The Nameplate list of up to 10 transformers can be written to and software. The values in the list can...
  • Page 20 To configure the settings for the Nameplate, perform the following: 1. Within the top level of Configure Instrument, press the ▼ or ▲ key until Setup Nameplate appears on the display, then press ENTER. Figure 4-9 2. The display will show Enable with Yes and No choices. Press the ▼ key to select Yes (Enable Nameplate). Figure 4-10 ® Digital Transformer Ratiometer DTR Model 8510 1.800.561.8187 information@itm.com www. .com...
  • Page 21 5. Press ENTER, then Yes (▼) on Enable. 6. Select Edit by pressing the ▼ key. The values in the Present Name- plate can be edited digit by digit by selecting each digit with the ▼ or ▲ and then pressing the ENTER key. When the last digit on the Sec- ondary is selected, the display returns to Setup Nameplate. Figure 4-13 NOTE: • Selecting one transformer from the list will replace the values in the Present Nameplate immediately. The values can then be changed in the Edit mode if needed. • Selecting Edit will allow the user to modify the values in the Present Nameplate. • The Edit process changes the values in the Present Nameplate only. The values previously stored would remain the same. The stored List values can only be changed in DataView ® ® Digital Transformer Ratiometer DTR Model 8510 1.800.561.8187 information@itm.com www. .com...

  • Page 22: Select Test Type

    If the instrument is turned OFF and turned ON, the Test Type will be the same as last selected. 4.3.4 Select Test Mode 1. From the top level of Configure Instrument, press the ▼ or ▲ key until Select Test Mode appears on the display, then press ENTER. Figure 4-15 2. Select Ratio or CONT/Ratio test using ▼ or ▲ and press ENTER. The display will return to Select Test Mode. ® Digital Transformer Ratiometer DTR Model 8510 1.800.561.8187 information@itm.com www. .com...

  • Page 23: Select Storage Mode

    Record in the next available location. NOTE: If the DTR ® 8510 is connected to a computer, Auto mode will be disabled. The Measurement Record will not be saved in the instrument but will be sent to the computer. ®...

  • Page 24: Select Filter

    Figure 4-17 2. Select Fast, Normal or Slow using ▼ or ▲ and press ENTER. The display will return to Configure Instrument > Select Filter. 8510 offers the user a choice of three digital filters for ® NOTE: The DTR measurement, depending upon the external electrical noise. These are sophisticated digital filters in the design which offer maximum noise...

  • Page 25: Erase Memory

    2. Select Yes or No using ▼ or ▲ and press ENTER. The display will return to Erase Memory. CAUTION: Once the memory is erased, the stored data cannot be recovered. Download the data, if desired, before the Erase Memory function is executed. ® Digital Transformer Ratiometer DTR Model 8510 1.800.561.8187 information@itm.com www. .com...

  • Page 26: Select Language

    TEST button while turning the unit ON. After initialization, the instrument will display the currently active language. Release the TEST button. The desired language can now be selected. ® Digital Transformer Ratiometer DTR Model 8510 1.800.561.8187 information@itm.com www. .com...

  • Page 27: Restoring Factory Defaults

    7200:120 2400:120 2160:120 Table 4-1 To set the instrument back to the factory default configuration: 1. Turn the DTR ® 8510 OFF. 2. Press and hold the ▲ key. 3. Turn the DTR ® 8510 ON. 4. Release the ▲ key when the instrument beeps. NOTE: The previously stored Measurement Records will remain in the memory and the language will remain the same as before the default configuration was loaded.

  • Page 28: Recall Data

    NOTE: The V after the Ratio indicates the VT/PT test type. C would be displayed if the Ratio was from a CT test. Figure 4-21 2. Press the TEST button to move to second screen, which will display Current and Deviation %. Figure 4-22 3. Press the TEST button to move to the third screen to display the Date and Time. ® Digital Transformer Ratiometer DTR Model 8510 1.800.561.8187 information@itm.com www. .com...
  • Page 29 6. Select any OBJECT and any TEST using the ▼ or ▲ key and the ENTER key to view the Measurement Record at any location. NOTE: 8510 can store 99 OBJECTs. Each OBJECT can store ® • The DTR up to 99 TESTs. • In Manual mode, the user can select the location to store the Measurement Record. The Measurement Records do not have to necessarily be sequentially stored. So, during a Recall Data operation, it is important for the user to know where the data is • Appendix B on page 59 provides a form for the user to identify the information stored at each location. The form can be copied and used as needed. ® Digital Transformer Ratiometer DTR Model 8510 1.800.561.8187 information@itm.com www. .com...

  • Page 30: Operation

    CHAPTER 5 OPERATION ® WARNING: The DTR Model 8510 is designed for use on de-energized (“dead”) transformers only. Make sure the test sample is completely disconnected from AC power and is fully discharged. Power Up Turn the power switch to the ON position. At power up, the instrument goes through an initialization process: • Beeps once • Displays “Initializing…Please Wait” for a short duration •...

  • Page 31: Running A Test

    RATIO 2.767 : 1 SECONDARY PRIMARY 19920 : 7200CT BLACK BLACK BLACK BLACK - Alternate Connection RATIO 1.383 : 1 PRIMARY SECONDARY 19920 : 7200CT BLACK BLACK BLACK BLACK Figure 5-2 ® Digital Transformer Ratiometer DTR Model 8510 1.800.561.8187 information@itm.com www. .com...
  • Page 32 1. Connect the Primary (H) and Secondary (X) cables to the appropri- 8510 and the transformer under test ® ate connectors on the DTR (see Fig. 5-2). 2. Press TEST button. The test will run continuity first and then run the ratio test. Figure 5-3 WARNING: It is important to make sure the Primary (H) and the Secondary (X) cables are connected properly BEFORE running the test.

  • Page 33: Storing The Measurement Record

    Storing the Measurement Record (Manual and Auto Mode) The storage mode you are in depends on what you selected when config- uring the instrument (see § 4.3) before running a test. 5.2.2.1 Manual Mode When Manual mode is selected, the Measurement Record storage is optional to the user. 1. To store the active measurement using Manual mode, press the MEM (ENTER) button. The display looks as shown below: Figure 5-6 ® Digital Transformer Ratiometer DTR Model 8510 1.800.561.8187 information@itm.com www. .com...

  • Page 34: 5.2.2.2 Auto Mode

    Primary (H) winding due to test excitation. The loading on the 8510 is negligible. ® Secondary (X) winding due to the DTR 8510 uses a maximum of 32Vrms excitation voltage • The DTR ® for testing. The displayed excitation current will almost always be a small fraction of transformer no-load excitation at full (rated) voltage. Most transformers will require less than 100mA. • If you are presently using a ratiometer that employs secondary (X) side excitation (e.g. common hand-cranked instruments) in step-up mode, the current may be much higher than what the 8510 displays. ® • This is normal and results directly from the fact that in most step-down transformers, the Primary (H) side has a much higher impedance than its associated Secondary (X) winding. ® Digital Transformer Ratiometer DTR Model 8510 1.800.561.8187 information@itm.com www. .com...

  • Page 35: Vt/Pt Continuity Test

    5.2.4 VT/PT Continuity Test 8510 serves as a useful means The Continuity Test function of the DTR ® of identifying open primary and secondary windings, high resistance con- ® nections, open circuit breakers and blown fuses. When selected, the DTR 8510 checks for continuity between its Secondary (X) and Primary (H) cables. 8510 will indicate OPEN for circuits >4KΩ and • The DTR ® CONT for circuits <4KΩ. Check these values. A small fraction of transformers (High inductance or high winding Ohmic DC resistance) may appear open. • The instrument checks for Secondary (X) connections first. Even if it is found open, it continues to check Primary (H) connections. Regardless of the outcome, the instrument proceeds to perform pre-test checks. Following the pre-test checks, if either X or H or both were found to be OPEN, the instrument will display the appropriate error message. Pressing the TEST button again will start a new Continuity test (assuming the user fixed the connection problem) again. If it passes the Continuity test, Ratio test will be executed.
  • Page 36 1. Connect the Primary (H) cable to the appropriate connectors on Model 8510 and the transformer under test. Connect the ® the DTR Secondary (X) cable as a loop through the current transformer hole as shown in the figure. BLACK BLACK Figure 5-7 2. Press the TEST button. During the Ratio test, the instrument will check for H/X reverse polarity, short (excessive current) etc. before conducting Ratio test. NOTE: • If the H/X is reversed, the instrument will display the error message (see Fig. 5-5) as in VT/PT test and terminate the test. • If there were a polarity reversal, the Ratio would be blinking with a negative sign. This means either the connections are reversed...

  • Page 37: Tips For Making Precise Ratio Measurements

    X cables are connected to the secondary side of the transformer before the test begins. • Always verify the integrity of the cable connections and reposition the clips as necessary for robust and low-resistance connections. Inspect the transformer terminals for dielectric coatings, fungus, dirt or corrosion. • Running a continuity test before the ratio test will provide a useful way to check windings and connections. • When testing polyphase transformers, keep in mind that in some cases, the measured ratios must be multiplied or divided by √3. Refer to § 6 for polyphase connection diagrams and associated ratio equations. ® Digital Transformer Ratiometer DTR Model 8510 1.800.561.8187 information@itm.com www. .com...

  • Page 38: Ratio Test - 1:1

    Ratio Test - 1:1 ® A simple test can be conducted to test functionality of the DTR 8510. to X cable and separately connect the H 1. Connect the H BLACK to X . This connection simulates a 1:1 transformer. BLACK 2. Run VT/PT test. In this connection mode, the test results should yield a ratio nearly equal to 8510 may require repair or re-calibration. ® 1.0000. If it does not, the DTR 1 : 1 BLACK BLACK EQUIVALENT CONNECTIONS Figure 5-8 ® Digital Transformer Ratiometer DTR Model 8510 1.800.561.8187 information@itm.com www. .com...

  • Page 39: Connections

    Make sure that the H or X lead directly or through earth ground. short to the X BLACK In the diagrams below, the top three are good connections but the bottom two should be avoided. Measurements - OK HR/HB XR/XB XR/XB XB/XR HB/HR XB/XR XR/XB XR/XB XB/XR Measurements - NOT OK XR/XB XB/XR XR/XB XB/XR XR/XB ® Digital Transformer Ratiometer DTR Model 8510 1.800.561.8187 information@itm.com www. .com...

  • Page 40: Polyphase Connections

    RATIO WINDING WINDING WINDING WINDING 1 Ø 1 Ø Δ Δ Δ Δ √ Δ H • Δ √ H • Δ √ X • Δ √ X • ® Digital Transformer Ratiometer DTR Model 8510 1.800.561.8187 information@itm.com www. .com...

  • Page 41: Dataview Software

    DataView. (DataView also comes with a Help system that is installed with the program files.) To install DataView, select DataView in the Options list and click Install. 4. Select the language version of DataView you want to install (Eng- lish, French, or Spanish) then click Next. (By default, the language selected in step 3 is highlighted.) ® Digital Transformer Ratiometer DTR Model 8510 1.800.561.8187 information@itm.com www. .com...
  • Page 42 8. You can now select additional Setup options to install (see step 3 above). When finished, click Exit. 9. The DataView folder now appears on your computer desktop, within which is the DTR icon and the icon(s) for any other Control Panel(s) you have installed. ® Digital Transformer Ratiometer DTR Model 8510 1.800.561.8187 information@itm.com www. .com...

  • Page 43: Opening The Control Panel

    To open the Control Panel using the desktop icon: • Double-click the DTR Icon in the DataView folder that was cre- ated during installation, located on the desktop. • The Connection window will appear. Click OK. Figure 7-1 To open the Control Panel from DataView ® Double-click on the DataView icon in the DataView folder on your desktop. splash screen will be displayed for a few seconds and then The DataView ® the Quick Start dialog box will appear (see Fig. 7-2). Figure 7-2 ® Digital Transformer Ratiometer DTR Model 8510 1.800.561.8187 information@itm.com www. .com...

  • Page 44: Using The Control Panel

    Select DTR and press OK. The Connection dialog box will appear (see Fig. 7-1). The Connection window specifies the connected instrument in the com- munications drop-down list. If multiple units are attached, select the desired unit with its associated serial number from the drop-down list. ® Once the desired instrument has been selected, click OK and the DTR 8510 Control Panel and Configuration window will open (see Fig. 7-5). Using the Control Panel The Control Panel is used for instrument operation and configuration. To open the Control Panel refer to § 7.2. ® Digital Transformer Ratiometer DTR Model 8510 1.800.561.8187 information@itm.com www. .com...
  • Page 45 Print All Tests - Prints all the tests in the selected Object Print - Prints the selected real-time window Print Preview All Tests - Provides a preview of all tests to be printed Print Setup - Displays a Print Setup window allowing you to select a destination printer and change various printing options Exit - Closes the control panel Edit Edit - Edits the session information for the selected test in the opened *.icp file Delete - Deletes the current test from the *.icp file ® Digital Transformer Ratiometer DTR Model 8510 1.800.561.8187 information@itm.com www. .com...

  • Page 46: Configuring The Dtr 8510

    ® Configuring the DTR 8510 To Configure the DTR ® 8510, perform the following steps: 1. Open the Control Panel and connect to the instrument. To open the Control Panel refer to § 7.2 2. Next, select Configure from the Instrument menu or click on the Configure icon . The Configure Instrument dialog box will be dis- played.
  • Page 47 Default Test Type: Allows selection of VT/PT or CT test. Default Test Mode: Allows selection of test for Ratio only or Cont/Ratio (Continuity and Ratio) mode. Default Storage Mode: Allows selection of storage of each Measurement Record in Manual or Automatic mode. Default Nameplate Values: Allows the user to store the most frequently used nameplate values (or ratio values). Present Nameplate Values: Allows the selection of the present nameplate values. The Deviation (%) will be calculated based on the Present Nameplate values for each measurement. Set Clock: Allows setting the clock on the instrument manually or synchronized with the clock in the computer. ® Digital Transformer Ratiometer DTR Model 8510 1.800.561.8187 information@itm.com www. .com...
  • Page 48 NOTE: None of the changes made on the configuration screen take effect until Write to Instrument command is executed. Read from Instrument: Allows the present configuration to be read. Cancel: Cancels the process to modify the configuration and closes the dialog box. NOTE: Parameters changed after Write to Instrument was executed will be lost. ® Digital Transformer Ratiometer DTR Model 8510 1.800.561.8187 information@itm.com www. .com...

  • Page 49: Running A Test

    NOTE: Pressing Save in the dialog box only saves the test to the instru- ment, NOT the computer. To save the test on the computer, select Save from the File menu. ® Digital Transformer Ratiometer DTR Model 8510 1.800.561.8187 information@itm.com www. .com...

  • Page 50: Downloading A Test

    Data on the side menu. The Select Tests dialog box will appear: Figure 7-8 This dialog box displays the content of the memory. No Measurement Records are downloaded as yet. 2. Select the Measurement Records individually or press Select All. Press Download to get the data to the computer. Figure 7-9 ® Digital Transformer Ratiometer DTR Model 8510 1.800.561.8187 information@itm.com www. .com...

  • Page 51: Saving The Measurement Records

    Saving the Measurement Records 1. Select Save or Save As from the File menu. The Save As dialog box will appear: Figure 7-10 2. Save the file in the default location of "My Documents\DataView\Data- Files\DTR" or select a different folder to save to. Report Generation To generate a report, a file needs to be open. 1. Select Open from the File menu. If necessary, navigate to the appro- priate folder where the .icp file is located, select it and press Open. Figure 7-11 ® Digital Transformer Ratiometer DTR Model 8510 1.800.561.8187 information@itm.com www. .com...
  • Page 52 , refer to the ® DataView manual that is included on the installation CD. This manual can also be found online at www.aemc.com on our software download ® page for DataView ® Digital Transformer Ratiometer DTR Model 8510 1.800.561.8187 information@itm.com www. .com...

  • Page 53: Maintenance

    Connect the charger unit output cable to the 3-pin DIN connector on the front panel of the instrument and connect the AC power cord to the AC receptacle. The charging starts as soon as the power is applied, the process is auto- matic and will terminate on its own upon completion. CAUTION: • Do not use any other charger. • Do not connect DC power supply. Damage will occur to the instrument. ® Digital Transformer Ratiometer DTR Model 8510 1.800.561.8187 information@itm.com www. .com...
  • Page 54 Charge Cycle and Status LED Indication on the Charger MODE Orange Battery not connected Orange Battery initialization & analysis Fast Charge Green with Intermittent Orange Flash Top-off charge Green Trickle charge Alternating Red-Green Error Table 8-1 ® Digital Transformer Ratiometer DTR Model 8510 1.800.561.8187 information@itm.com www. .com...
  • Page 55 The battery packs are built with a thermistor. The smart charger constantly monitors the battery pack temperature. A built-in temperature charge control (+dT/dt) secures optimal charge. • Safety timer termination. In case the batteries do not exhibit sufficient –dV/dt for the charger to detect, there is an internal safety timer which is ® custom-programmed for the battery packs used in the DTR Model 8510. • Fast charging cycle. This charge cycle supplies a maximum 900mA charge until -dV is detected. • Integral start timer to prevent initial, false -dV detection. A few battery cells may have a voltage drop (-dV) in the first part of the charge cycle. This is especially true for battery cells which have been idle for a long period of time. Because of this, a start-timer built into the charger prevents -dV detection in the first minutes of the charger cycle. • Reverse polarity/short circuit protection.

  • Page 56: Cleaning

    If the safety timer disconnects before -dV, the top-off charge will not be engaged. The charger will then go directly to trickle charge mode and the LED will turn green. If the battery voltage is far below normal, the charger will stop the fast charge current and switch to trickle charge mode. The LED will then indicate an "error" by flickering green and red. The battery packs and/or the charger may need to be replaced. If the line power is turned off, the charger will reset and start a new charge cycle when it is turned on again. Cleaning Disconnect the instrument from any source of electricity. • Use a soft cloth lightly moistened with soapy water. • Wipe with a moist cloth and then dry with a dry cloth. • Never use alcohol, solvents or hydrocarbons. ® Digital Transformer Ratiometer DTR Model 8510 1.800.561.8187 information@itm.com www. .com...

  • Page 57: Appendix: Display Messages

    As the batteries reach a predetermined threshold, LOW BATTERY indica- tion will appear on the display. All the buttons will be non-operational now. The batteries must be recharged in order to continue testing. ® NOTE: The DTR Model 8510 charges in <4 hours. The instrument can not be used to test when the batteries are charging. X Circuit CONT or OPEN The ------ indication is for CONT (Closed switch). It indicates a good connection. The --/-- indication is for OPEN (Open switch). It indicates a poor or open connection.
  • Page 58 Secondary (X) winding may be shorted or the transformer circuit breaker may be open or the ratio may be higher than the instrument can measure. Low H Signal Check Primary (H) cables for inadvertent short. Check to make sure the Primary (H) cable is connected properly at the instrument panel. Primary (H) winding may be shorted. Memory is Full! Data NOT stored The instrument memory is full and there is no more location left for additional storage. Memory Error Service Required Measurement Records cannot be stored or recalled because the memory ® cannot be accessed. Factory service is needed. However, the DTR 8510 can be used to make measurements in a normal manner. ® Digital Transformer Ratiometer DTR Model 8510 1.800.561.8187 information@itm.com www. .com...

  • Page 59: Repair And Calibration

    Costs for repair, standard calibration, and calibration traceable to N.I.S.T. are available. NOTE: You must obtain a CSA# before returning any instrument. Technical and Sales Assistance If you are experiencing any technical problems, or require any assistance with the proper operation or application of your instrument, please call, mail, fax or e-mail our technical support team: NOTE: Do not ship instruments to our Foxborough, MA address. ® Digital Transformer Ratiometer DTR Model 8510 1.800.561.8187 information@itm.com www. .com...

  • Page 60: Limited Warranty

    CSA Form. Please write the CSA# on the outside of the shipping container. Return the instrument, postage or shipment pre-paid to: Ship To: 749-6309 Caution: To protect yourself against in-transit loss, we recommend you insure your returned material. NOTE: You must obtain a CSA# before returning any instrument. ® Digital Transformer Ratiometer DTR Model 8510 1.800.561.8187 information@itm.com www. .com...

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