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Installation and operation manual 

KSGD02 Revision: 1.4 

Page 13 of 16 

R

KSGD-01WS-B 

Fig 4.5   Applying gas to the detector 

 

4.2 Full Operational test procedure 
 

To  verify  the  correct  operation  of  the 
detector,  test  gas  can  be  used  which  is 
equivalent  to  the  alarm  thresholds.  Test 
kits are available. 

 
 
 
 
 
 
 
 
 
 

1.

 

Fit  pressure  regulator  on  to  calibrated  gas  bottle  and  check  the 
cylinder pressure is above 10 bar.  
The  test  gas  cylinder  should  be  stored  at  room  temperature  or 
allowed to stand at room temperature for at least 4 hours prior to 
use. 
Ensure the detector is powered up for a minimum of 1 hour before 
testing.  

 

2.

 

Ensure the detector is in the 

Normal operation

 state before commencing with tests. Just 

before conducting tests gently agitate the bottle for 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 the detector. 

 

As  the  measured  gas  level  starts  to 
increase,  the  detector  will  enter  the 

Pre-

Alarm 

states.  

 
 
 

 

Operating State 

Dual Relay version 

Connection 

terminal states 

Single Relay version  

Connection 

terminal states 

LED 

Buzzer 

Gv 
Voltage 

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 
For > 2 seconds

 

3 & 4 

5 & 6 

3 & 4 

4 & 5 

Flashing 

RED

>OFF (2Hz)

 

OFF 

>3.5VDC 

CLOSED

 

OPEN

 

CLOSED

 

OPEN

 

 

Fig 4.3   Calibration test kit 

Fig 4.4   Gas bottle with regulator fitted 

Summary of Contents for k-con KSGD-01WS-B

Page 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 ...

Page 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...

Page 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 ...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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 ...

Page 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 ...

Page 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 ...

Page 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...

Page 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...

Page 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...

Page 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 ...

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

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