9EN
2. Technical data
Designation TKRS 21 & 31
Flash rate range 30 to 300 000 flashes per minute (f/min.)
Flash rate accuracy ±0,005% (± 1 digit at 23 °C (73 °F))
Flash setting and display
resolution
±0,1 (30 to 999,9 f/min.)
±1,0 (1 000 to 300 000 f/min.)
Tachometer range 30 to 300 000 r/min.
Tachometer accuracy ±0,02 % or ±1 digit whichever is greater
Tachometer distance up to 2 m at +/- 45° angle
Flash source TKRS 21: 7 LED’s; TKRS 31: 6 LED’s
Brightness
(Flash duration)
adjustable: 0,2°/ 1 µs whichever is bigger –
5°/ 2 000 µs whichever is smaller
Light power >5600 Lux
at 3° flash duration and 0,3 m (12 in) distance
Flash colour approx. 5 000 – 8 000 K
Power source 3 × AA batteries (included)
Run time ca. per charge TKRS 21: ca. 3:00 h @ 1° (100% display brightness)
ca. 6:45 h @ 0,2° (20% display brightness)
TKRS 31: ca. 3:45 h @ 1° (100% display brightness)
ca. 8:15 h @ 0.2° (20% display brightness)
Display Multi-line backlight TFT
Display update Continuous
External trigger input (TKRS 31 only): Input: 3 - 30 V / max. 5 mA (NPN)
Output: up to 30V / max 50 mA (NPN)
External trigger connection TKRS 31: Plug 3,5 mm (included)
EXTL. trigger range (TKRS 31 only) 30 to 300 000 f/min
Controls Direct selector switches and rotary/push knob
Signal modification Edge selection, Divider, Delay
Housing material ABS (plastics)
Instrument dimensions 225 × 78 × 50 mm (8.9 × 3 × 2 in)
Case dimensions 260 × 85 × 180 mm (10.2 × 3.3 × 7.1 in)
Instrument weight
(incl. batteries)
TKRS 21: 0,29 kg (0.64 lb)
TKRS 31: 0,3 kg (0.65 lb)
Total weight TKRS 21: 0,78 kg (1.7 lb)
TKRS 31: 0,79 kg (1.7 lb)
Operating temperature 0 to 40 °C (32 to 104 °F)
Storage temperature –20 to +45 °C (–4 to +113 °F)
Type of protection for
indication only
IP30
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