Count frequency
521K
:
Power supply DC:
24 V 12 V 10 ...30 V
Input level:
Standard
5V
typ. Low Level:
2,5 V 2,0 V 1,0 V
typ. High Level: 22,0 V 10 V 4,0 V
Fmax*:
kHz kHz
kHz
CntDir
60 20
8
UpDown
25 15
8
Up.Up
25 15
8
Quad1
25 15 8
Quad2
25 15
8
Quad4
15 15
Count frequency
522K
:
Frequency measurement
Accuracy <0.1 %
Measuring principle:
< 38 Hz:
period measurement
> 38 Hz:
gating time measurement
gating time 26,3 ms
Power supply DC:
24 V 12 V 10 ...30 V
Input level:
Standard
5V
typ. Low Level:
2,5 V 2,0 V 1,0 V
typ. High Level: 22,0 V 10 V 4,0 V
Fmax*:
kHz kHz
kHz
Tacho
60 20 8
Counting ranges
523K
:
Seconds
0.001 s ... 999 999 s
Minutes
0.001min ... 999 999 min
Hours
0.001 h ... 999 999 h
h.min.s
00 h 00 min 01 s
... 99 h 59 min 59 s
Accuracy
<50 ppm
Minimum pulse length for the Reset input:
5 ms
Input sensitivity:
Standard sensitivity:
Low: 0 ... 0,2 x UB [V DC]
High: 0,6 x UB ... 30 V DC
5 V sensitivity:
Low: 0 ... 2 V DC
High: 4 ... 30 V DC
Pulse shape:
any*, Schmitt-Trigger inputs
Optocoupler output (optional):
NPN optocoupler with open collector and open
emitter; max. switching performance:
30 V DC/10 mA
* at maximum frequency square wave pulses 1:1
Ambient temperature:
–20 ...+65 °C
Storage temperature:
–25 ... +70 °C
EMC:
In compliance with the EC Directive 2004/108/EEC
Noise emission
EN 61 000-6-3
EN 55 011 Class B
Noise immunity
EN 61 000-6-2
Housing:
For front panel mounting: 48 x 24 mm
acc. to DIN 43700, RAL7021, dark grey
Weight:
appr. 50 g
Protection:
IP 65 (front)
Cleaning:
The front of the units is to be cleaned only with a
soft wet (water !) cloth.
6. Terminal assignment
without optocoupler
1 10 ... 30 V DC
2 0 V GND
3 INP A
4 INP B (522K: n.c.)
5 SET/RESET (522K: n.c.)
with optocoupler
1 10 ... 30 V DC
2 0 V GND
3 INP A
4 INP B (522K: n.c.)
5 SET/RESET (522K, n.c.)
6 Emitter
7 Collector
7. Delivery includes:
1 Digital display
1Panel mounting clip
1 Bezel for screw mounting,
panel cut out 50 x 25 mm
1 Bezel for clip mounting,
panel cut out 50 x 25 mm
1 Seal
1 Operating instructions
