Related Manuals for TECSYSTEM NT935-IR
Summary of Contents for TECSYSTEM NT935-IR
- Page 1 TECSYSTEM S.r.l ® INSTRUCTION MANUAL NT935-IR TIR409 TECSYSTEM S.r.l. 20094 Corsico (MI) Tel.: +39-024581861 Fax: +39-0248600783 http://www.tecsystem.it R. 1.3 07/09/12 NT935-IR + TIR409...
- Page 2 The use of an IR sensor, which meets the required insulation levels, allows to measure the temperature staying at a safety range. Tecsystem has developed an own sensor which allows a simple coupling with the NT935-IR monitoring unit, prepared to receive 4.20mA signals from 3 IR sensors.
- Page 3 Option: protection treatment of the electronic part • Vibration test IEC 68-2-6 Amplitude ± 1 mm from 2Hz to 13.2Hz Acceleration ± 0.7G from 13.2Hz to100Hz. • (*) Seismic test according to IEEE 344-1.987 *Cross reference T154 for constructive analogy. NT935-IR + TIR409...
- Page 4 TECSYSTEM S.r.l ® 2) NT935-IR TECHNICAL SPECIFICATIONS SUPPLY COMMUNICATION • • Rated values: from 24 to 240VAC/DC Tecsybus output for NT series external modules INPUTS OUTPUTS • • 3 or 4 4.20mA inputs 2 alarm relays (ALARM - TRIP) (-40°C @ 4mA, +200°C @ 20mA) •...
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Page 5: Working Temperature
For a correct supply we suggest to use TECSYSTEM AU24 device. Supply must be connected as shown in Figure 7 at page 26. The same feeder can be used to supply 24V direct current to NT935-IR monitoring unit. 6) SUPPLY OF MONITORING UNIT NT935-IR NT935-IR monitoring unit has an UNIVERSAL supply, i.e. -
Page 6: Cooling Fan Control
Eliminate Ech indication by pressing RESET and run programming to insert desired values. Finally turn off and turn on again the unit to verify the correct memory working; in case it is damaged and Ech still appears, please return the monitoring unit to TECSYSTEM for repair. -
Page 7: Display Mode
Press SET and RESET keys to energise and de-energise the relay to test; the display will show ON-OFF. After 1 minute keyboard no-operation, RELAYS TEST procedure will be automatically left. To end RELAYS TEST procedure, press TEST key. NT935-IR + TIR409... -
Page 8: Alarm Relay Silencing
Before carrying out the insulation test on the switchboard where the monitoring unit is mounted, you have to disconnect it from the mains in order to avoid serious damages. 20) FRONT PANEL Temperature and Messages display Alarm for Display Selected mode Channel Selected channel Prg/Relays Test Mode Keyboard NT935-IR + TIR409... - Page 9 If pressing ENT, “Err” appears, it means that one of the following mistakes has been made: ALARM ≥ TRIP or FAN-OFF ≥ FAN-ON. Press PRG to return to step 1 and correct the data. After 1 minute of keyboard no-operation, programming is left without data storage. NT935-IR + TIR409...
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Page 10: Fault Diagnostic
22) RULES FOR WARRANTY The Product purchased is covered by manufacturer's warranty or the seller's terms and conditions set forth in the "General Conditions of Sale Tecsystem srl", available at www.tecsystem.it and / or purchase agreement. The warranty is considered valid only when the product will be damaged by causes attributable to TECSYSTEM srl, such as manufacturing or components defects. - Page 11 Press Reset to cancel the FCD signalling of all the channels and restore the fault relay. FIGURE 1 ACCURACY OF THE INFRA-RED SENSITIVE ELEMENT Ta: Room temperature To: Temperature of the object to measure NT935-IR + TIR409...
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Page 12: Support Bracket
TECSYSTEM S.r.l ® FIGURE 2 SUPPORT BRACKET NT935-IR + TIR409... -
Page 13: Laser Pointer
FIGURE 3 Dimensions in mm. TIR409 ELECTRICAL CONNECTIONS NOTES: To use IR TIR409 sensor together with NT935-IR monitoring unit, it is not advisable to use 7-8 output and DIP Switch, which shall be configured all on OFF FIG. 7 OUT IR SUPPLY 4.20mA... -
Page 14: Top Side
TECSYSTEM S.r.l ® TOP SIDE FIGURE 4 LASER POINTER PUSH-BUTTON NT935-IR + TIR409... -
Page 15: Alarm Relay Outputs
TECSYSTEM S.r.l ® NT935-IR ELECTRICAL CONNECTIONS FIGURE 8 TIR409 IR SENSOR INPUTS IR CH 1 IR CH 2 IR CH 3 IR CH 4 4.20mA 4.20mA 4.20mA 4.20mA 13 14 15 16 17 18 19 20 21 22 23 24 + n.c. - Page 16 TECSYSTEM S.r.l ® NOTES: NT935-IR + TIR409...
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