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Installation and operation manual 

KSGD02 Revision: 1.4 

Page 14 of 16 

R

KSGD-01WS-B 

!

Once the 

Pre-alarm level 2

 state is reached, the operation of the detector is proven and unless 

confirmation of the relay operation is required there is no necessity to continue through the 
remaining steps   skip to step 5.  
 
If  the  detector  remains  in  the 

Pre-alarm  level  2

  state  continuously  for  30  minutes  the 

detector will enter the 

Low Alarm Level

 condition. 

 

Operating State 

Dual Relay version 

Connection 

terminal states 

Single Relay version  

Connection 

terminal states 

LED 

Buzzer 

Gv 
Voltage 

Low Level Alarm; 

Reading> ~1000ppm 
For > 30 minutes 

 

3 & 4 

5 & 6 

3 & 4 

4 & 5 

Flashing 

RED

>

AMBER 

(2Hz) 

Pulses 
2Hz 

>3.5VDC 

OPEN

 

CLOSED

 

OPEN

 

CLOSED

 

 

4.

 

If test gas application is continued the detector will eventually enter the High Level Alarm 
state.  

 

5.

 

Turn off the gas regulator valve and allow clean air to circulate over the sensor and the gas 
to  dissipate.  After  removing  the  gas  the  sensor  should  recover  and  return  to 

Normal 

Operation.

  

It may be necessary to ventilate the room with fresh air for the sensor to recover. The time 
for  the  detector  to  recover  will  depend  upon  the  concentration  of  gas  detected  by  the 
sensor and the time period but is typically less than 5 minutes. It is recommended that the 
sensor is not subjected to test gas for a prolonged  period (>3 minutes) as recovery may 
become significantly longer. 

 

Please ensure the regulator is switched off after use and the bottle is stored in a ventilated 
space. 
 

    See section 3.1 for supplementary information of Gv voltages at different operational states. 
 

The detectors relays are normally energized, so the operation can also be tested by isolating 
power to the detector. 

 
 

5. Fault finding 

 

Problem 

Action 

LED Not illuminated 

Check power supply 

LED  Flashing 

RED

>

AMBER 

with  interval  buzzer    Sensor 

fault 

Check sensor if fitted and seated correctly in sensor socket 

LED Flashing 

RED 

 Refrigerant leak 

Ventilate room and detector should automatically reset 

LED Flashing 

RED

>

AMBER 

with buzzer puling (2Hz) 

Potential  contaminant,  Ventilate  room,  detector  will 
automatically reset.

 

LED Flashing 

RED

>

AMBER 

with buzzer puling (4Hz) 

High level contaminant, Ventilate room. 
Verify operation of detector. 

 

DO  NOT  swap  the  sensor  between  KSGD  units.    Each  sensor  is  matched  to  the  PCB  and 
swapping sensors will directly affect the performance of the product. 

 
 

 

Operating State 

Dual Relay version 

Connection 

terminal states 

Single Relay version 

Connection 

terminal states 

LED 

Buzzer 

Gv 
Voltage 

High Level Alarm 

Reading> ~4000ppm 
For > 30 seconds

 

3 & 4 

5 & 6 

3 & 4 

4 & 5 

Flashing 

RED

>

AMBER 

(4Hz) 

Pulses 
4Hz 

>4.2VDC 

OPEN

 

CLOSED

 

OPEN

 

CLOSED

 

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Содержание k-con KSGD-01WS-B

Страница 1: ...Installation and operation manual KSGD02 Revision 1 4 Page 1 of 16 R KSGD 01WS B Refrigerant leak detector Installation and operation manual Version 1 4 Manufactured for MITSUBISHI ELECTRIC UK ...

Страница 2: ...In no event will the manufacturer be liable for any direct indirect special incidental or consequential damages resulting from any defect or omission in this manual even if advised of the possibility of such damages In the interest of continued product development the manufacturer reserves the right to make improvements to this manual and the products described herein at any time without notice or...

Страница 3: ...erview 7 1 1 Specification Overview 7 2 Installation 8 2 1 Locating the sensor 8 2 2 Electrical connections 9 2 3 Other features 10 3 Operation 11 3 1 Operational matrix 11 4 Testing 12 4 1 Measuring the Gv 12 4 1 Bump test procedure 12 4 2 Full Operational test procedure 13 5 Fault finding 14 Revisions 15 Notes 16 ...

Страница 4: ...namely boiler suit and safety glasses Improper handling may result in injury If refrigerant gas leaks during installation work ventilate the room If the refrigerant gas comes into contact with a flame poisonous gases will be released Install the controller according to this Installation Manual If the unit is installed improperly electric shock or fire may result Have all electric work done by a li...

Страница 5: ... flares and flange connections The refrigerator oil will degrade if it is mixed with a large amount of mineral oil Use liquid refrigerant to fill the system If gas refrigerant is used to seal the system the composition of the refrigerant in the cylinder will change and performance may drop Do not use a refrigerant other than what is specified If the incorrect refrigerant R22 etc is used the chlori...

Страница 6: ... packaging bags so that children will not play with them If children play with a plastic bag which has not been torn apart they face the risk of suffocation Before starting a test run Caution Do not touch the switches with wet fingers Touching a switch with wet fingers can cause electric shock Do not touch the refrigerant pipes during and immediately after operation During and immediately after op...

Страница 7: ...ntinued product development the manufacturer reserves the right to make improvements to products with notice or obligation Housing White plastic OR Stainless steel fascia back box dry lining box supplied on request other options available Power 12 24V AC or DC Power usage Max 2 5VA 1VA nominal Relays 1 or 2 Contact rating 0 5A 125VAC 1A 24VDC Indicators 1 x Tri colour LED Sounder 85dB 2300Hz 300Hz...

Страница 8: ... conditioning unit 2 Accessible for maintenance The KSGD should be mounted in a position where it can be easily accessed for maintenance and repairs 3 Minimize possibility of damage Mount the sensor in a position that minimizes the risk of mechanical damage to the unit 4 Minimize false alarms Semi conductor sensors can be poisoned exposure may take considerable time to recover Solvent paints and s...

Страница 9: ...AC or DC 2 Power V2 3 Relay 1 NO1 Normally Open 4 Relay 1 C1 Common 5 Relay 2 NC2 Normally Closed 6 Relay 2 C2 Common Single relay version See section 3 for details on the relay operation and functions Relay s are energized in normal operation the relay will de energize if an alarm or fault occurs or if power is not present The tables above show the relay s in the de energized power removed state ...

Страница 10: ... as the sensor and buzzer enable link are located on the front of the detector PCB When the buzzer enable disable link is fitted the buzzer will operate when required Remove this link to disable the buzzer permanently i Status LED Buzzer Buzzer Enable Disable link Sensor Factory use only Fig 2 4 KSGD other features ...

Страница 11: ...EN Normal operation 3 4 5 6 3 4 4 5 Constant GREEN OFF 0 4 1VDC CLOSED OPEN CLOSED OPEN Sensor fault 3 4 5 6 3 4 4 5 RED OFF 1Hz 1 x AMBER FLASH PER MINUTE Pulses once per minute 0 1VDC OPEN CLOSED OPEN CLOSED As the gas concentration increases Pre alarm Level 1 Reading 500ppm For 2 seconds 3 4 5 6 3 4 4 5 Flashing GREEN OFF 2Hz OFF 2 5VDC CLOSED OPEN CLOSED OPEN Pre alarm Level 2 Reading 1000ppm ...

Страница 12: ...ntaminant and the voltage should subside Operating State Dual Relay version Connection terminal states Single Relay version Connection terminal states LED Buzzer Gv Voltage Normal operation 3 4 5 6 3 4 4 5 Constant GREEN OFF 0 4 1VDC CLOSED OPEN CLOSED OPEN 2 Using a small amount of butane or equivalent spray gas at the sensor for approximately 30 to 40 seconds 3 The sensor will enter the High Lev...

Страница 13: ...1 to 2 minutes Operating State Dual Relay version Connection terminal states Single Relay version Connection terminal states LED Buzzer Gv Voltage Normal operation 3 4 5 6 3 4 4 5 Constant GREEN OFF 0 4 1VDC CLOSED OPEN CLOSED OPEN 3 Place the plastic tube directly over the perforation on the cover plate and turn the regulator valve fully anticlockwise to release the test gas Apply test gas onto t...

Страница 14: ...ypically less than 5 minutes It is recommended that the sensor is not subjected to test gas for a prolonged period 3 minutes as recovery may become significantly longer Please ensure the regulator is switched off after use and the bottle is stored in a ventilated space See section 3 1 for supplementary information of Gv voltages at different operational states The detectors relays are normally ene...

Страница 15: ...Installation and operation manual KSGD02 Revision 1 4 Page 15 of 16 R KSGD 01WS B Revisions 1 4 11 12 2019 First released version KR ...

Страница 16: ...Installation and operation manual KSGD02 Revision 1 4 Page 16 of 16 R KSGD 01WS B Notes ...

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