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118 ITM Series 118 ITM Intelligent Transformer Monitor for Dry Transformers Instruction Manual Document ID: IST-102-1 ECN-31737 www.qualitrolcorp.com Courtesy of NationalSwitchgear.com...
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QUALITROL. QUALITROL endeavors to ensure the accuracy and quality of its published materials; however, no warranty, expressed or implied, is provided. QUALITROL disclaims any responsibility or liability for any direct or indirect damages resulting from the use of the information in this manual or products described in it.
Overview Overview 1.1. QUALITROL Intelligent Transformer Monitor The Model 118 ITM Intelligent Transformer Monitor (ITM) can monitor up to three thermocouples in ventilated dry-type transformer windings, display the current winding temperatures, and operate relays by comparing the highest of the three winding temperatures to stored set point temperatures.
1.2. QUALITROL QUALITROL has been a leader in supplying pressure, liquid-level, and temperature controls since 1945. As an ISO 9001 system-certified company, we are committed to providing you with quality and reliability, both in our products and in our service.
Operation Installation and Wiring 2.1. Mounting of the Transformer Monitor The 118 ITM mounts in a rectangular cutout for a panel or a hinge mount, which is secured by four ¼” bolts. See Figure 1; 118 ITM Dimensions. Figure 1a – 118 ITM-P Dimensions www.qualitrolcorp.com Courtesy of NationalSwitchgear.com...
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Operation Figure 1b – 118 ITM-H Dimensions 8.50 [10.5] [215.9] [16.0] [4.1] 6.00 6.25 [152.4] [158.8] °C ALARM FANS SILENCE TEST ALARM MAX TEMP TRIP RESET 10.93 RELAY 4 VENT RELAY 5 MANUAL AUTO [277.7] FANS 10.50 [266.7] .31 WD x .50 LG SLOTS (4 PLCS) Figure 1c –...
Operation 2.2. Primary Power Primary Power is connected to TB1-13 and TB1-14 with an Earth Ground connection to TB1-15. This connection provides power to the 118 ITM. Power can be 80 to 300Vac or 40 to 280Vdc. 2.3. Sensors The three thermocouple sensors are connected to TB4-1(+), 2(-); TB4-3(+), 4(-), and TB4-5(+), 6(-).
Operation 2.3.1. Relay Contacts FAN #1 – Power for Fan #1 is connected to TB2-3 (N) and TB2-4 (L). Fan #1 is connected to TB2-1 and TB2-2. There is a 30 A fuse in series with TB2-1. FAN #2 – Power for Fan #2 is connected to TB2-7 (N) and TB2-8 (L). Fan #2 is connected to TB2-5 and TB2-6.
Operation 2.3.2. Analog Output An analog output is available at TB5-1(+) and TB5-2(–) that provides an analog signal proportional to the highest temperature. The analog signal can be selected by the User Configuration software to be 0–1 mA, 0–10 mA, 0–20 mA, 4–20 mA, or 0–5 V. 2.3.3.
Operation 3.4. Push Buttons Pressing the MANUAL/AUTO FAN button will force the FAN relay to activate. The FANs will stay ON until the button is pressed again. A MAN icon on the LCD display indicates whether the manual FAN ON function is active. Pressing the button to release the MANUAL FAN function, while the temperature is above the FAN ON set point, will turn OFF the MANUAL FAN icon on the LCD but will NOT turn OFF the FANs.
Operation Figure 3 – Front Panel 3.5. Fan Exerciser The unit has a built-in Fan Exerciser function that can turn the FANs on for a short period of time at periodic intervals. The default setting is for one minute every seven days. The Fan Exerciser can be configured to be active or inactive.
Functional Specifications Functional Specifications Performance: Input Power: 80 to 300 VAC 50/60 Hz ; 40 to 280 VDC Universal Power Supply Power Consumption: <10Watts Measurement 0°C–250°C Range: Display Resolution: 1°C increments Input ±3°C Measurement Accuracy: Memory Retention: 40 years (with power OFF) Contact Ratings Volts Resistive...
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Functional Specifications Mechanical: Front Panel: 6.5"[165.1mm]Wide x 9.10"[231.1mm]HighGraphic (Panel Mount overlay UV resistant for outdoor use. Unit) Mounting: Panel mount through 5.37" [136.4 mm] wide x 7.97" [202.4 mm] high cutout. Ø.261[6.63mm] Depth: 2.22" [56.4 mm] Weight: 3lbs[1.4kg Terminals: Screw terminal; maximum 12-gauge wire Mounting Hinge mount through 8.82"...
USB cable Item number: KIT-207-1 The ITM Configuration software is a Windows-based program that allows the user to set up parameters in the QUALITROL Model 118 ITM Intelligent Transformer Monitors via the USB port. 5.1. Installation for Window XP *For Win7 refer to Appendix F Run ITM Setup.exe from the software CD, this will create a directory C:\Program...
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Setup Software Check “Include this location in search” and type C:\Program Files\Qualitrol\118ITM in the text box then click Next. (See Figure 5) Figure 5 You will get a warning message – click “continue anyway”. (See Figure 6) Figure 6 www.qualitrolcorp.com...
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Setup Software Click “Finish” on the next screen completing the driver installation. Figure 7 Figure 7 The windows file usbser.sys needs to be in the Windows\System32\Drivers folder (it usually is) in order to install the USB drive. If the install program says it can't find the driver file, you will need to search the computer to find it and copy it to Windows\System32\Driver folder and repeat the process above.
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Setup Software In a Windows XP machine do the following: Click Start button – Control Panel – System. (See Figure 8) Figure 8 In the System Screen click the Hardware tab then click Device manager. (See Figure 9) Figure 9 www.qualitrolcorp.com Courtesy of NationalSwitchgear.com...
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Setup Software Click the + sign next to ports and it will show the communication port number next to “IAR virtual COM port”. For example (COM7) means the communication port number is 7. (See Figure 10) Figure 10 In a Windows 7 machine do the following: Click Start button – Control Panel – System and Security.
Setup Software 5.2. Files The first time you start the program, you must select the proper communication port to be used with the program. When you close the program, the communication port is remembered, so that the next time you use the program, it uses the correct communication Port without having to select it each time.
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Setup Software Figure 11 www.qualitrolcorp.com Courtesy of NationalSwitchgear.com...
Setup Software 5.3. Configuration User can select “Get Existing Configuration” or “Make New Configuration” to view configuration or change configuration offline, selecting one of these options will allow you to open an existing or new file allowing you to make the changes on the 118 ITM Configuration screen (See Figure 11).You can then download the configuration to an ITM and/or save it to a configuration file.
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Setup Software Figure 12 www.qualitrolcorp.com Courtesy of NationalSwitchgear.com...
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Setup Software ‘ORDER CONFIGURATION This unit is configured as follows: 118ITM -__ - __- __ Communication M – Modbus Remote Output Loop 0- 0-1mA 10- 0-10mA 20- 0-20mA 5- 0-5 Vdc 4- 4-20mA Package P – Panel mounting plate H – Box with hinged front cover E –...
Appendix A Manual Set Point Adjustment – Appendix A – Manual Set Point Adjustment Although the preferred method of changing the unit setup is to use a computer connected to the USB port, there may be cases where it is desired to change a set point in the field when there is no computer available.
Appendix B Thermocouple Accuracy – Appendix B – Thermocouple Accuracy In order to ensure accurate results when using thermocouple-based devices, certain installation and testing procedures should be observed. This appendix addresses the installation of the Model 118 ITM Intelligent Transformer Monitor (ITM) and techniques required to test its accuracy in a laboratory setting.
Appendix C Error Codes – Appendix C – Error Codes During normal operation, the system is constantly checking itself for proper operation. If a failure is detected, the FANs are turned ON, and the unit is put into the ALARM state. The unit will then operate as follows: Failed Sensor o Shows “- - -”...
Appendix D Using the Model 118 ITM in the European Community – Appendix D – Using the Model 118 ITM in the European Community 9.1. Installation The Model 118 ITM is intended to mount inside the customer’s panel, enclosure, or to be otherwise protected so that only the face of the instrument is accessible to the operator.
Appendix D Using the Model 118 ITM in the European Community – 9.2. Fuses There are two types of fuses used in the unit. Neither fuse is operator replaceable. 30 A fuse 0.25 in. x 1.25 in. Type F, two per unit 1 A fuse 5mm x 20mm Slow Blow, one per unit The 30 A fuses monitors the Fan Current (30 Amp fuse required for UL 20 Amp FANS requirement).
Figure 15 Install Window 2. Please click the “Install” button (figure 15) 3. Then select, “Yes, I do”, for accepting Qualitrol terms, if “No, I do not” is selected then it will cancel the install. Figure 16 Terms and Condition Agreement www.qualitrolcorp.com...
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Figure 17 Final Install Window 5. Clicking on the “Thanks!” button, shown in figure 17, will complete the software installation and bring up the “C:\Program Files\QUALITROL\ITM118 “directory (figure 18). Here the user will find the 118ITM shortcut and software uninstall option.
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Appendix F Windows 7 Install – 6. Now click on the launch icon . By launching the software application Windows, it will prompt the user with a Run-Time error, as seen in figure 19, this is expected, click OK. Figure 19 Windows 7 Error 7.
Appendix G Modbus Communications – Appendix G – Modbus Communications If the Model 118 ITM is equipped with the optional RS-485 port, the unit can communicate with a Modbus master station. The RS-485 port is located on the side of the Model 118 ITM and is provided with a plug-in terminal block connector.
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Appendix G Modbus Communications – If No Parity has been selected, the number of stop bits can be set to 1 or 2 (S1 or S2). S1 is used if the unit is communicating through a modem; otherwise, S2 is the standard.
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Appendix G Modbus Communications – Bit 4 "1" = Failed Display Driver 40009 Phase Status Bit 0 "1" = Some other bit is '1' Bit 1 "1" = Left phase disabled Bit 2 "1" = Center phase disabled Bit 3 "1"...
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