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26

 

CTX 300 

 

User manual 

 

CTX 300 calibration for O2 

This sensor is an 

Oxygen 

type. 

1

st

 case: CTX 300 O2 with display  

■ 

See paragraph 

1

st

 case: CTX 300 with 

display

,  on  page  22.  Proceed  only 

with  adjusting  sensitivity  (rep.  1)  by 
injection of test gas. 

 

Figure 20 

2

nd

 case: CTX 300 O2 without display screen nor LED 

■ 

See  paragraph 

2

nd

  case:  CTX  300 

without  display

  on  page  24.  Proceed 

only  with  adjusting  sensitivity  (rep.  1) 
by injection of test gas. 

 

Signal value mV: 

-  1600 mV for full scale, means 30 % 

O

2

-  1115 mV for 20.9 % O

2

-  0 mV for 0% O

2

 

Figure 21 

 

Note:  the  signal  sent  from  the 
CTX300  (toxic  or  oxygen)  sensor  to 
the  control  unit

 

can  be  measured  on 

the  main  circuit  by  connecting  a 
millivoltmeter to the pins designed for 
this purpose (

Figure 22

). 

 

-  400 mV corresponds to 4 mA. 

 

-  2000 mV corresponds to 20 mA. 

 

Figure 22 

 

 

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Summary of Contents for ctx 300

Page 1: ...User manual CTX 300 Analogic Gas Detector Part Number NP300GB Revision N 0 04 2019 The Fixed Gas Detection Experts www acornfiresecurity com www acornfiresecurity com...

Page 2: ...Oldham Simtronics S A S All information provided in this document is accurate to the best of our knowledge As a result of continuous research and development the specifications of this product may be...

Page 3: ...nd connection 11 Installing the detectors 11 Electrical connections 13 Chapter 4 Powering up and use 19 Powering up 19 4 20 mA analog output 20 Chapter 5 Maintenance 21 Calibration 21 Replacing a sens...

Page 4: ...4 CTX 300 User manual Chapter 9 Annex 45 Indications for calibrating the CTX 300 SC 45 CTX 300 overview 46 www acornfiresecurity com www acornfiresecurity com...

Page 5: ...user Oldham Simtronics cannot be held liable for any misinterpretations in the reading of this manual In spite of our efforts to produce an error free manual it may nonetheless contain some unintenti...

Page 6: ...be dangerous Your full cooperation in the proper disposal of this product promotes a better use of natural resources Safety instructions Labels intended to remind you of the principal precautions of...

Page 7: ...ges for loss or interruption of manufacture loss of information defect of the MX 43 control unit injuries loss of time financial or material loss or any direct or indirect consequence of loss occurrin...

Page 8: ...8 CTX 300 User manual www acornfiresecurity com www acornfiresecurity com...

Page 9: ...ors and oxygen With robust materials a specifically adapted design appropriate accessories stainless bolts and a polyamide case IP54 CTX 300 detectors are designed to withstand the roughest conditions...

Page 10: ...ensor Infrared absorption Semiconductor sensor Type of sensor pack Pre calibrated removable sensor pack 2 Pre calibrated removable sensor pack 0 30 scale or 0 100 volume Pre calibrated removable senso...

Page 11: ...tion both The effects of temperature The outside winds direction Determining the best sensor location Factors to consider when determining the best placement for the detector are Potential sources for...

Page 12: ...r manual Mechanical installation Figure 2 overall dimensions of the CTX 300 Figure 3 drilling diagram for wall mounting view of the side flatten onto the ceiling www acornfiresecurity com www acornfir...

Page 13: ...ss Electrical connections Wiring specifications If needed consult the grounding instructions for Oldham Simtronics instruments and related connection materials in Annex 1 Connections for the various t...

Page 14: ...DC power supply masse 0 V 2 Output signal 1 Figure 5 connection of a 3 wire sensor to an Oldham control unit Connection of a 2 wire sensor to an Oldham Simtronics control unit Wire Terminal number V D...

Page 15: ...200 A Power supply 15 Vcc 32 18 Vcc 30 for CO2 sensor I max 130 mA Connection of a 2 wire 4 20mA sensor to a non Oldham Simtronics control unit and to an internal power supply Figure 8 Connection of...

Page 16: ...ref 4 Unscrew the screw a few turns ref 3 Figure 10 Turn the display circuit as shown ref 5 Connect the cable ref 6 to the connector Refer to paragraph Connections for the various types of sensors on...

Page 17: ...and connection 17 CTX 300 without display Unscrew the 4 screws ref 1 Remove the cover rep 2 Proceed to wire the sensor according to the terminal location Figure 12 www acornfiresecurity com www acornf...

Page 18: ...18 CTX 300 User manual www acornfiresecurity com www acornfiresecurity com...

Page 19: ...s a display the green LED will be lit ref 2 and a value will appear on the display screen ref 1 Figure 13 In case of a problem with CTX 300 SC verify that the maintenance switch ref 1 located on the m...

Page 20: ...the 4 20 mA output current is proportional to the gas level The various states of the 4 20 mA output are 1 mA to indicate a fault Between 4 and 20 mA for measurement values 20 mA if levels exceed meas...

Page 21: ...nificant deviation is observed If a detector should fail to react in contact with the gas calibration is essential The frequency of calibrations shall be appropriate according to the results of the te...

Page 22: ...MUST consult a specialized Oldham Simtronics technician or use another sensor pack recently pre calibrated at a factory The detector should be calibrated using the intended flow rate The actual concen...

Page 23: ...as at a flow rate of 30 l h Wait for the measurement to stabilize Adjust the sensitivity by using the sensitivity potentiometer located on the sensor pack rep 1 Figure 17 Stop injecting the calibratio...

Page 24: ...signal to stabilize and adjust the zero by using the ZERO potentiometer located on the sensor pack Figure 19 ref 2 The output signal should be 0 mV Now inject the recommended test gas at a flow rate o...

Page 25: ...CO sensor Scale 0 300 ppm Standard gas concentration 100 ppm Reading 533 mV Shut off the calibration gas injection Withdraw the gas injection pipe Then wait and check that the scale has returned to ze...

Page 26: ...case CTX 300 without display on page 24 Proceed only with adjusting sensitivity rep 1 by injection of test gas Signal value mV 1600 mV for full scale means 30 O2 1115 mV for 20 9 O2 0 mV for 0 O2 Figu...

Page 27: ...a washbottle moisten the filter without saturating it with distilled water Replace the lid and check that all parts are properly assembled and that the assembly is fully airtight Adjust the flow rate...

Page 28: ...djust the signal with the sensitivity potentiometer p6 ref 2 The output signal should be Figure 25 U 880 mV 3520 mV x Cal gas concentration Sensor measurement range Example Sensor measure of full rang...

Page 29: ...ion and improvement of environmental quality and for the protection of human health and the prudent and rational utilization of natural resources the CTX 300 must be disposed of separately from electr...

Page 30: ...30 CTX 300 User manual www acornfiresecurity com www acornfiresecurity com...

Page 31: ...imtronics Otherwise material safety could be jeopardized CTX COX 300 toxic or oxygen sensors P N Description Picture 6147868 CTX 300 tool kit 6322420 Mounting brace and bolts CTX 300 ceiling mount 632...

Page 32: ...vol sensor pack 6314192 CTX 300 CO2 100 vol sensor pack Pre calibrated toxic sensor pack 6313627 CTX 300 CO 100 ppm sensor pack 6313628 CTX 300 CO 300 ppm sensor pack 6313629 CTX 300 CO 1000 ppm senso...

Page 33: ...pm sensor pack 6313655 CTX 300 HCN 30 ppm sensor pack 6313656 CTX 300 NH3 100 ppm sensor pack 6313657 CTX 300 NH3 1000 ppm sensor pack 6313893 CTX 300 NH3 0 5000 ppm sensor pack 6313675 CTX 300 HF 10...

Page 34: ...al P N Description Picture 6815919 CTX 300 without display label 6815921 CTX 300 wit display label 6451466 Display card 6815923 Localization sticker 6451644 Motherboard www acornfiresecurity com www a...

Page 35: ...ation kit humidifier filter pipe 6335918 Humidifier filter Replacement sensors 6313544 Sensor for R134A R11 R23 R143A R404A R507 R410A R32 R407C R408A 6313545 Sensor for methyl chloride methylene chlo...

Page 36: ...36 CTX 300 User manual www acornfiresecurity com www acornfiresecurity com...

Page 37: ...7 Certification 37 Chapter 7 Certification The following page reproduces the EC declaration of conformity www acornfiresecurity com www acornfiresecurity com...

Page 38: ...38 CTX 300 User manual www acornfiresecurity com www acornfiresecurity com...

Page 39: ...7 Certification 39 www acornfiresecurity com www acornfiresecurity com...

Page 40: ...40 CTX 300 User manual www acornfiresecurity com www acornfiresecurity com...

Page 41: ...and O2 without display unit 27 mA CTX300 CO2 without display 60mA CTX 300 with display unit 110 mA CTX 300 semiconductor versions 100mA Operating temperature 20 C to 50 C 4 F to 122 F with display se...

Page 42: ...to 95 RH 1 5 1 5 1 5 36 36 36 15 15 15 NO2 EC 10 0 30 0 20 C to 50 C 20 C to 50 C 10 to 95 RH 10 to 95 RH 1 5 1 5 24 24 20 20 SO2 EC 10 0 30 0 100 20 C to 50 C 20 C to 50 C 20 C to 50 C 10 to 95 RH 1...

Page 43: ...lene SC 500 2000 20 C to 50 C 20 C to 50 C 10 to 95 RH 10 to 95 RH 36 36 20 20 Ethanol SC 500 5000 20 C to 50 C 20 C to 60 C 10 to 95 RH 10 to 95 RH 36 36 20 20 R12 SC 10000 20 C to 55 C 10 to 95 RH 3...

Page 44: ...44 CTX 300 User manual www acornfiresecurity com www acornfiresecurity com...

Page 45: ...richloroethylene 300 ppm CO 120 ppm 35ppm Toluene C6H5CH3 2 000 ppm 100 ppm Toluene 300 ppm CO 330ppm 50ppm Xylene C6H4 CH3 2 2 000 ppm 100 ppm Xylene 300 ppm CO 330ppm 50ppm Ethanol C2H5OH 5 000 ppm...

Page 46: ...46 CTX 300 User manual CTX 300 overview Figure 27 CTX 300 with sensor pack and display overview www acornfiresecurity com www acornfiresecurity com...

Page 47: ...9 Annex 47 Figure 28 CTX 300 overview www acornfiresecurity com www acornfiresecurity com...

Page 48: ...48 CTX 300 User manual Figure 29 CTX 300 semiconductor overview www acornfiresecurity com www acornfiresecurity com...

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