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Electronic Temperature
Monitor for Dry
Transformers

118 series

Instruction Manual

IST-054-1

Courtesy of NationalSwitchgear.com

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Содержание 118 Series

Страница 1: ...Electronic Temperature Monitor for Dry Transformers 118 series Instruction Manual IST 054 1 Courtesy of NationalSwitchgear com...

Страница 2: ...QualiTROL 118 Series Electronic Temperature Monitor for Dry Type Transformers Instruction Manual Courtesy of NationalSwitchgear com...

Страница 3: ...___________________ 8 Temperature Display 8 Status Lamps 8 Alarm Audible 8 Push Buttons 8 Fan Exerciser 9 Functional Specification __________________________________________________________ 10 Setup S...

Страница 4: ...ntervals ON time and interval is programmable Operates a relay with a SPDT contact when one of the inputs exceeds the ALARM setting A RED LED indicates that the ALARM is ON An internal audible device...

Страница 5: ...ons to guide you through mounting supplying power to and wiring your Temperature Monitor Operation A description of use during transformer operation as well as easy instructions on how to perform a sy...

Страница 6: ...nitor The 118 mounts in a rectangular cutout in a panel and is secured by four 4 bolts See Figure 1 118 Dimensions Figure 1 118 Dimensions The 118H mounts in a rectangular cutout in a panel and is sec...

Страница 7: ...the internal temperature of the ETM If the channel is not used it can be turned OFF using the setup software but the terminals still need to be shorted together Relay Contacts FAN 1 The 1 fan contacts...

Страница 8: ...p Software section of this manual for more detailed information NOTE Wires should be connected to the RS 232 terminals only during parameter setup No permanent field wires should be connected to these...

Страница 9: ...e of the unit This provides a method of communicating with a remote master station using Modbus RTU protocol Refer to Appendix E of this manual for additional information See Figure 4 RS 485 Wiring Di...

Страница 10: ...larm An internal Buzzer sounds each time the ALARM becomes active The buzzer can be silenced by pressing the SILENCE push button The buzzer will then turn OFF and remain OFF until a new ALARM occurs P...

Страница 11: ...r 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 1 minute every 7 days The Fan Exerciser can be co...

Страница 12: ...500 max load Accuracy 1 of full scale reading Fan Exerciser Fan Run Time 1 to 120 minutes Fan Cycle Time 0 01 to 30 0 days Time starts at power up Environment Operating Temperature 30 C to 72 C Stora...

Страница 13: ...are consists of these menu selections Installation Run SETUP BAT on the installation CD This will create a directory C QualiTROL on the hard drive and will install the program and default configuratio...

Страница 14: ...to be detected quickly If the thermocouple is connected incorrectly as the temperature goes up the display temperature goes down If the reverse thermocouple feature is activated when the thermocouple...

Страница 15: ...dual fuses Remote Output 0 0 1mA loop 4 4 20mA loop Thermocouple K Type K Voltage 120 120VAC 240 230 240VAC 277 277VAC Package P Panel mounting plate H Box with hinged front cover FAN turns ON at ____...

Страница 16: ...to step the Alarm setpoint up or down Push the MANUAL FAN button The TRIP light will be on and the display will show the Trip setpoint Use the AUDIBLE and MAX MEMORY buttons to step the Trip setpoint...

Страница 17: ...he fans turn ON If the unit is installed in an enclosure no further protection is required If the unit is mounted without being installed in an enclosure then to maintain the rated accuracy some form...

Страница 18: ...Electronic Temperature Monitor ECN 27644 17 July 7 2010 THERMOCOUPLE WIRE COPPER WIRE Model 118 ETM Millivolt Source ICE BATH Courtesy of NationalSwitchgear com...

Страница 19: ...lay Driver Continue to operate Failed Microprocessor Unit will not operate but failure is detected The FANS will turn ON and ALARM relay will be in the alarm state Intermittent sensor connection If th...

Страница 20: ...unit and within easy reach of the operator It shall be marked as the disconnecting device for the equipment Radio Frequency interference above Level 1 of EN 61000 4 6 conducted on the Mains wiring ma...

Страница 21: ...or they can be set up by the following procedure using front panel switches 1 Hold all three switches depressed until the unit stops cycling thru the readings approximately 10 seconds The unit will t...

Страница 22: ...hed for 30 seconds the unit will automatically return to normal operation with the communications setup unchanged Modbus Reg No Data Returned when Register Is addressed Comments 40001 40002 40003 Temp...

Страница 23: ...is disabled 40010 40011 40012 40013 40014 40015 40016 40017 40018 40019 Fan setpoint Alarm setpoint Trip setpoint Fan Switching differential hysteresis Alarm Switching differential hysteresis Trip Sw...

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