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  NT935 WS

 

 

 

 
 
 
      
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

European directive 2012/19/EU (WEEE) has been approved to reduce electrical and electronic waste and to promote the 
recycling and reuse of the materials and components of said equipment, cutting down on the disposal of the residues and 
harmful components of electrical and electronic materials. 
  

All the electrical and electronic equipment supplied after 13 August 2005 is marked with this symbol, pursuant to 
European directive 2012/19/EU on electrical and electronic waste (WEEE). Any electrical or electronic equipment 
marked with this symbol must be disposed of separately from normal domestic waste. 

  
Returning of used electrical appliances: contact TECSYSTEM or the TECSYSTEM agent to receive information on correct 
disposal of the appliances. 
  
TECSYSTEM is aware of the impact its products have on the environment and asks its customers active support in the 
correct and environmentally-friendly disposal of its devices.  

  
 

TECHNICAL SPECIFICATIONS

:  [email protected] 

  

COMMERCIAL INFORMATION

: [email protected]   

  

  
  
  
 

EQUIPMENT DISPOSAL 

USEFUL CONTACTS  

The product NT935-4 WS has born as a technical evolution of the NT935 WS model, it maintains the main features of 
the NT935 WS, increasing its programming flexibility: 
 
1. The 4 channels (CH1-CH2-CH3-CH4) can be enabled individually: CHn (YES) enabled - CHn (NO) disabled. 
2. Programming of the ALARM and TRIP thresholds is independent for each channel 0°C 240°C ALARM < TRIP. 
3. The management of the FAN1 and FAN2 ventilation is programmable on all the enabled channels, selecting on the 
single CHn:

 

a. FAN1 / FAN2 flashing LEDs, both fans (FAN1 / FAN2) enabled on CHn. 
b. FAN1 LED flashing, the FAN1 will be enabled on the CHn. 
c. FAN2 LED flashing, the FAN2 will be enabled on the CHn. 
d. NO, both fans (FAN1 / FAN2) will be disabled on the CHn. 

 
4. The Intellifan (INT) function is not available in the NT935-4 WS model. 
5. The CH1-2-3 channels must be enabled for correct operation of the Voting function. If one of the indicated  
channels is not enabled, the control unit will indicate ERR VOT, the programming of the device will not take place. It  
will therefore be necessary to enable CH1-2-3 channels to proceed with device programming. 
6. The programming steps for NT935-4 WS may vary according to the channels enabled by the operator. 
 

 

 

NT935-4 WS NOTES 
 

PROGRAMMING SCREEN NT935-4 WS 

 

Summary of Contents for NT935 WS

Page 1: ...ith the ISO9001 certified quality system http www tecsystem it R 1 3 26 11 20 Translations of the original instructions INSTRUCTION MANUAL NT935 WS TECSYSTEM S r l 20094 Corsico MI Tel 39 024581861 Fa...

Page 2: ...35 WS PROGRAMMING NOTES 14 TEMPERATURE SENSORS 15 MEASUREMENT SIGNAL TRANSFER TEMPERATURE SENSOR DIAGNOSTICS 16 VOTING FUNCTION PROGRAMMED DATA DIAGNOSTICS TEMPERATURE DIAGNOSTICS COOLING FAN CONTROL...

Page 3: ...2 TECSYSTEM WEB SERVER 21 WEB SERVER MANAGEMENT BAR 22 HOME SCREEN SETTINGS SCREEN 23 NETWORK SETTINGS 24 OPTIONS 25 GRAPHICS SCREEN 26 EVENTS SCREEN 27 GRAPHIC VIEW NOTES 28 EXPORT NOTES CSV FILE PIN...

Page 4: ...netrates the control unit disconnect immediately and contact technical service CLEANING Disconnect the power cable before cleaning the control unit using a dry cloth without any solvent or detergent a...

Page 5: ...orque 0 5Nm 1 relay terminal 12 poles pitch 5 Code 2PL0361 Screw tightening torque 0 5Nm 1 Pt100 sensors terminal 12 poles pitch 3 81 Code 2PL0420 Screws tightening torque 0 25Nm 1 external Wi Fi SMA...

Page 6: ...s FAN 1 and FAN 2 SPST Output relays with 10A 250Vca res COS 1 contacts Wi Fi Connection protocol 802 11 b g n frequency 2 4 GHz with removable external antenna Max 100m in open field DIMENSIONS 100 x...

Page 7: ...l 4 2 ON OFF thresholds for FAN 1 and FAN 2 Sensor diagnostics Fcc Foc Fcd Data memory diagnostics Ech Access to programming through front keyboard Automatic exit from programming display and and test...

Page 8: ...LED 5 FAULT red LED 16 3 digit channel display 6 FAN 1 yellow LED 17 T max mode selection red LED 7 FAN 2 yellow LED 18 Man mode selection yellow LED 8 Display mode selection key 19 Auto mode selecti...

Page 9: ...und in the measurement circuit The temperature values displayed might be incorrect Return the control unit to TECSYSTEM for repairs 4 Pt Err This message appears when it is detected that one or more P...

Page 10: ...ly after suitably fixing the device 1 Control unit 2 Panel hole dimensions 0 8 mm tolerance 3 Identification label 1 Control unit 3 Fixing screw 2 Fixing blocks 4 Cross head screwdriver 1X100mm MOUNTI...

Page 11: ...point key 2 Power supply 85 260Vac dc 50 60Hz 5 Antenna and Wi Fi connector 3 Relays FAN2 FAN1 ALARM TRIP FAULT 1MN0095 REV 0 Output relay with 10A 250Vac res COS 1 contacts COS 1 STOP SYSTEM ALARM C...

Page 12: ...FAULT contact programmed in failsafe mode default YES opens 11 12 when the equipment is supplied only if the unit detects no fault on switching on and stays in this condition until one of the followi...

Page 13: ...INT If INT is selected read function notes page 17 8 CH4 is displayed CH4 enabling 9 Select YES or NO with YES CH4 is enabled with NO CH4 is disabled 10 The ALARM threshold for CH4 is displayed the Al...

Page 14: ...ect YES or NO Default YES 36 END is displayed End of programming 37 Press ENT to save the set data and exit programming Err incorrect programming of the LED values note 6 38 Return to step 1 PROGRAMMI...

Page 15: ...mm 4 The cable screening must be grounded only with a termination preferably on the unit side 5 The sensors signal transfer cable must not be near electrical cables either low or medium high voltage 6...

Page 16: ...emperature values recorded on the monitored CH1 CH2 CH3 channels and enables the switching of the TRIP disconnect contact only if the TRIP threshold has been exceeded on at least two channels over the...

Page 17: ...ration and their control apparatus periodically By setting NO this function is inhibited To enable the HFN function read the programming section on pages 13 14 INTELLIFAN FUNCTION What it is used for...

Page 18: ...imits are reached preset temperature or for device s power supply lack FAULT Setting YES Fail safe the contact 11 12 is positioned as normally open switches closed when a fault condition is identified...

Page 19: ...signal transfer on page 15 Identification of a sensor fault or faulty connection In case of a faulty connection or sensor fault a quick positive or negative variation in temperature might occur leadin...

Page 20: ...l network key TECSYSTEM in the network key window repeat the operation in the network key confirmation window Click on CONNECT Once the connection is established your device will indicate Connected TE...

Page 21: ...ice will follow a chronological order but will not have the date time data available Accessing the Options page it will be possible to set the date time data manually see page 24 NOTE in the Access po...

Page 22: ...or fault indications activation of the F1 F2 ALARM TRIP alarms WEB SERVER MANAGEMENT BAR The web manager management bar allows the user to identify the cabin and to select the various screens The foll...

Page 23: ...g of the NT935 WS control unit 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 As for the panel programming also for programming through WEB SERVER it is necessary to follow these rules AL ALARM TRIP FAN FAN OFF...

Page 24: ...erification 4 Subnet mask 7 Server NTP address automatic time and date update 1 Selection ACCESS POINT mode settings 8 Access Point SSID default TECSYSTEM network name modification 9 Password default...

Page 25: ...IN CODE settings and operation at page 28 Selection Duration in days months Selection Duration in days months 5 min 91 days 3 months 20 min 365 days 12 months 10 min 182 days 6 months 30 min 547 days...

Page 26: ...5 View key 3 Data availability DA yy mm dd Time hh mm ss 6 Export key VIEW button Pressing the VIEW button will update the chart according to the dates selected FROM TO FROM box It allows the user to...

Page 27: ...time clock set to last saved Reset date and time automatic from the last saving W02 Real time clock manually set Manual date and time setting W03 diagnostic button pressed the access point key has be...

Page 28: ...nce universal coordinated time Following the exporting of the CSV file recorded TEMPERATURE VALUE the last 300 recorded points will be contained in the file if there are less than 300 points in memory...

Page 29: ...s wrong Contact the TECSYSTEM Technical Department Sudden trip of the main switch The temperature is on standard levels Just one channel has caused the trip Check the temperatures recorded in T MAX ch...

Page 30: ...CONTACTS The product NT935 4 WS has born as a technical evolution of the NT935 WS model it maintains the main features of the NT935 WS increasing its programming flexibility 1 The 4 channels CH1 CH2 C...

Page 31: ...MASS OF THE EQUIPMENT 0 45 Kg INPUT SUPPLY 100 240 Vac Vdc 10 50 60 Hz 7 5VA max PROTECTION External switch or circuit breaker OUTPUTS RELAYS 5 relay output 10A 250Vac res COS 1 PORT Wifi Suitable for...

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