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CODEL

 

Page 11 

Operation and Maintenance 

Issue: A 

Revision: 

Date: 10/10/18 

Ref: 100533 

 

 

6

 

mA Output 

 

the output of the TunnelTech 601 is a standard 4- 20mA current loop. The response from the sensor 
is perfectly linear within the calibrated range of 0 to 6500 cd/m

² and therefore the mA output is 

delivered accordingly and is updated near constantly.

 

Each TunnelTech 601 is tested at several points against a traceable standard unit. 
 

 

Figure 8: cd/m2 to mA output (4-20) graph 

 

Although the standard TunnelTech 601 has a measurement range of 6500 cd/m2, other calibrated 
ranges as per customer requirements, as well as a 0 - 20mA output option are available upon 
request. 
 

 

  

 

1300 

2600 

3900 

5200 

6500 

650 

1950 

3250 

4550 

5850 

Summary of Contents for TunnelTech 601

Page 1: ...10 18 Ref 100533 TunnelTech 601 Luminance Photometer Operation and Maintenance Manual CODEL International Ltd Station Building Station Road Bakewell Derbyshire DE45 1GE United Kingdom t 44 0 1629 814...

Page 2: ...CODEL Page 2 Operation and Maintenance Issue A Revision Date 10 10 18 Ref 100533...

Page 3: ...set standards both for itself and for the rest of the industry All development and design work is carried out in house by experienced engineers using proven state of the art CAD and software developm...

Page 4: ...CODEL Page 4 Operation and Maintenance Issue A Revision Date 10 10 18 Ref 100533...

Page 5: ...ech 601 1 1 2 Optional accessories 1 2 Principles of Operation 2 3 Specification 3 3 1 Sensor 3 3 2 Housing 4 3 3 Certifications 4 4 Installation 5 4 1 Device Location 5 4 2 Unit Installation 6 4 3 Ca...

Page 6: ...CODEL Page 6 Operation and Maintenance Issue A Revision Date 10 10 18 Ref 100533...

Page 7: ...ow are used throughout these instructions and are intended to ensure your safety while carrying out installation operation and maintenance procedures Please read these instructions fully before procee...

Page 8: ...CODEL Page 8 Operation and Maintenance Issue A Revision Date 10 10 18 Ref 100533...

Page 9: ...ted at a tunnel approach road and aligned to the tunnel s entrance portal It continuously measures the average luminance within a 20 angle over a standard range of 0 6 500 cd m2 Other ranges available...

Page 10: ...e photocell is fed into a low noise chopper stabilised amplifier with further stages provide current limiting and gain adjustment before being fed into the 4 20mA output current generator Protection a...

Page 11: ...20 C to 60 C Dual heater available on request 40 C to 60 C 1 within 50 C from the 25 C calibration temperature Electrical connection requirements 230VAC 50 60Hz 115VAC 50 60Hz 24VAC 50 60Hz 24VDC Ran...

Page 12: ...ins electrical supply Environment For indoor and outdoor installation Cable glands 3 x M16 Housing window material Glass WxH 94x80mm Bracket Material Extruded aluminium Epoxypolyester powder paint and...

Page 13: ...om the tunnel entrance is generally accepted at 120 200 metres from the tunnel entrance see CIE publications No 61 1984 and No 88 1990 Mounted 4 5 meters above the road surface to avoid traffic obstru...

Page 14: ...bracket allows the TunnelTech 601 to be panned through a 360 lateral angle and tilted vertically through 120 The main device housing is attached to the tilt pan bracket via two M6x12mm 10mm hex head b...

Page 15: ...eased slide the outer enclosure off the inner section to access the boards inside Feed the intended cables through the supplied cable glands and once inside the unit connect the power cable to the J3...

Page 16: ...ghten the socket head bolts and grub screws Ensure to reconnecting the outer case earth jumper cable to the power distribution PCB if this was removed during the opening of the enclosure for the cable...

Page 17: ...Power Supply Unit PSU Installation Mount the PSU to the mounting surface using 4 M6 bolts by others Mounting hole details are shown in Figure 7 below Figure 7 Optional PSU mounting Arrangement Make s...

Page 18: ...automatic Wash Wipe unit is fitted available upon request When cleaning the sensor window avoid ethyl alcohol solvents hydrogenated hydrocarbide strong acids and alkalis Such products may irreparably...

Page 19: ...0 cd m and therefore the mA output is delivered accordingly and is updated near constantly Each TunnelTech 601 is tested at several points against a traceable standard unit Figure 8 cd m2 to mA output...

Page 20: ...ure 1 positioning 5 Figure 2 Enclosure Dimensions 6 Figure 3 Bracket dimensions 6 Figure 4 enclosure disassembly 7 Figure 5 Power Distribution and Heater Control PCB 7 Figure 6 Luminance Amp and Curre...

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