Zera TK326 Scanning Head

The scanning head TK326 is developed only for scanning of rotor marks and LED’s of electronic meters. It is not allowed to modify the TK326 in any way.
Only electrically skilled person (older than 18 years) having relevant education and experience which enable him/her to perceive risks and to avoid hazard/damage which electricity can create, are allowed to operate the equipment. Every person putting this equipment into operation, operating or servicing the system should read, understand and follow the user manual including all safety instructions. Use of equipment tools, cables in a manner not specified may damage the protection provided by the equipment.
Also observe the local safety regulation, general guideline for accident prevention, general guideline for safety engineering regulations. If the units appears to be damaged or operates abnormally, protection may be impaired. Do not attempt to operate it and report the defect or damages to the supervisor in-charge immediately. The ntest operation has to be stopped until defects and damages have been repaired and removed. This operation manual has to be kept close and accessible to the tester at any time.

Wavelength: 450 … 950 nm
Distance to meter LED: 25 … 50 mm
Pulse data:
max. frequency 1000 Hz
max. rising time 20 µs
min. pulse width 100 µs
max. falling time 20 µs
min. pulse pause 400 µs
Squarewave 1:1:
max. frequency 1000 Hz
max. rising time 20 µs
max. falling time 20 µs
Squarewave 1:1, Amplitude modulation 8 kHz:
max. frequency 500 Hz
max. rising time 20 µs
max. falling time 20 µs
uncertainty of switching edge detection ± 1 µs
Rotor marks scanning:
wavelength LED in front 450 nm
distance to rotor disk 25 … 45 mm
uncertainty of switching edge detection ± 1 µs