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sensotran, s.l. 

GAS SENSORS AND TRANSDUCERS 

ALARM PANEL 

GASVISOR 

Rev. GV v1.1 

User Manual 

Page 9 of 11 

 

 

Note: 

When  a  parameter  is  modified,  an  icon  appears  to  save  the  changes 

with a floppy disk symbol. 

 

 

4.4 RS-485 bus operation 

 

Up to 32 detectors can be connected over RS-485 bus. 

A different ID must be assigned to each detector first. 

 

 

 

 

 

 

 
 

 

 

 

 

 

 

 

 

 

An  external  power  supply  must  be  provided  to  connect  the  detectors  on  an 

RS-485 bus. 

Wiring must be by means of a 4-wire cable with 2 wires for power supply and 
2 for the communications bus (A and B). 

 

 

4.5 General alarm operation 
 

The GasVisor panel has 4 relays to activate 4 different alarms. The first three 

are used as normal alarms and the fourth a fault alarm. 

If  the  alarm  is  activated  for  any  channel,  it  will  be  displayed  in  a  different 
colour, depending on the alarm tripped, and a bell symbol will appear in the 

box  corresponding  to  the  channel.  The  value  reading  will  continue  to  be 

displayed.  
 

Oxygen sensor alarms must be configured as descending for sub-oxygenation 

levels  (below  20.9%)  and  ascending  for  over-oxygenation  levels  (above 
20.9%). 

 

If  connection  to  the  sensor  is  lost  for  any  reason,  the  fault  alarm  will  be 
activated and the text “FA” will be displayed. If this happens, the alarms on 

Bus 1 

Bus 2 

Bus 3 

Bus 4 

Summary of Contents for GasVisor

Page 1: ...GasVisor Gas Detection Panel User Manual sensotran s l Av Remolar 31 08820 EL PRAT DE LLOBREGAT Tel 34 93 478 58 42 E mail sensotran sensotran com Website www sensotran com October 2020 V1 1 ...

Page 2: ...is equipment in its customers interest without prior notice to improve its performance SENSOTRAN S L accepts no liability for operation of the equipment in case of electrical installation not complying with the current regulations or of uses other than that described in the following instructions The user is responsible for performing the regular checks needed to ensure the operation of each item ...

Page 3: ...v1 1 User Manual Page 3 of 11 3 CONTENTS 1 Introduction 4 2 Wiring 4 3 General operation 6 4 System menu 7 4 1 Menu access 7 4 2 Configuring channels 7 4 3 Configuring 4 20 mA input parameters 8 4 4 RS 485 bus operation 9 4 4 General alarm operation 9 5 Specifications 11 ...

Page 4: ...nnel 6 S7 is channel 7 and S8 is channel 8 Channels S4 S5 S6 S7 and S8 are optional The alarm relay outputs are to be connected to RL1 for Alarm 1 RL2 Alarm 2 RL3 Alarm 3 and RL4 for the Fault relay 1 Earth connection 19 Analog sensor 6 2 Mains power supply 80 280 V 50 Hz 20 Analog sensor 6 3 Mains power supply 80 280 V 50 Hz 21 Analog sensor 6 4 20 mA 4 Analog sensor 1 22 Analog sensor 7 5 Analog...

Page 5: ...sensotran s l GAS SENSORS AND TRANSDUCERS ALARM PANEL GASVISOR Rev GV v1 1 User Manual Page 5 of 11 5 Fig 1 Channels S5 S6 S7 and S8 are optional FUSES F1 AND F2 ...

Page 6: ...ows Selecting 1 8 shows channels 1 to 8 selecting 9 16 shows channels 9 to 16 selecting 17 24 shows channels 17 to 24 selecting 25 32 shows channels 25 to 32 and selecting all shows all the channels Note Selecting all the channels only shows the status of the detector as Ok Alarm 1 Alarm 2 Alarm 3 or Fault Once the panel has been configured in normal status the alarms are operative and the display...

Page 7: ...3 Red background color Status FA Sensor fault Yellow background color 4 System menu 4 1 Menu access To enter the menu press on any channel and then the key You then need to enter the access code 1250 and press the OK button If the code entered is correct the menu will open If it is incorrect it will go back into normal operating mode 4 2 Configuring channels Various parameters affecting the operat...

Page 8: ...led 4 Exits the menu 5 Advances to the next menu 6 Selects device on the selected channel Note When a parameter is modified an icon appears to save the changes with a floppy disk symbol 4 3 Configuring 4 20 mA input parameters 1 Selects the decimal point position 2 Selects the measurement range 3 Shows the 4 20 mA input current for the selected channel 4 Shows the previous menu 5 Advances to the n...

Page 9: ...A and B 4 5 General alarm operation The GasVisor panel has 4 relays to activate 4 different alarms The first three are used as normal alarms and the fourth a fault alarm If the alarm is activated for any channel it will be displayed in a different colour depending on the alarm tripped and a bell symbol will appear in the box corresponding to the channel The value reading will continue to be displa...

Page 10: ...ctivated When the connection is restored the alarm will disappear automatically and normal operation will be restored 1 Configures alarm 1 2 Configures alarm 2 3 Configures alarm 3 4 Shows the previous menu 5 Exits the menu Note When a parameter is modified an icon appears to save the changes with a floppy disk symbol 1 2 3 4 5 ...

Page 11: ...es From 0 1 to 0 10 000 ppm 0 100 LEL 0 25 O2 Ambient temperature 10 to 60 C Ambient humidity 0 95 RH RH non condensing Atmospheric pressure 15 Output signals 2 mA sensor or cable fault 3 Alarm relays NO 1 Fault relay Acoustic alarm buzzer Status LED Precision 0 5 of reading Display 4 7 TFT touch screen Rated voltage 220 VAC Standards EN 50270 EMC Materials Housing Polystyrene Cable inlets Chromed...

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