Magnescale DK812A Series, Instruction Manual

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6
(E)
In the standard specifications, the minimum phase difference is fixed at 50 ns for the DK800A
and 100 ns for the DK800B, but the minimum phase differences in the table below are
available as special specifications.
5-2. Output Signal Alarm
If the response speed is exceeded, the phase A/B output from this measuring unit changes to
Hi level for about 400 ms to serve as an alarm.
5-3. Receiver
* If extending the cable, the supply voltage is +5 V±5%.
* Use the CE22 series extension cables for bare wires (optional accessories).
A/B minimum
phase
difference
50 ns
100 ns
300 ns
500 ns
Phase A
cycle
200 ns
400 ns
1.2 µs
2 µs
Counter
allowable
frequency
5 MHz
2.5 MHz
833 kHz
500 kHz
Maximum response speed
Resolution Resolution
0.1 µm 0.5 µm
80 m/min 250 m/min
42 m/min 100 m/min
14 m/min 33 m/min
8.4 m/min 20 m/min
Remarks
DK800A standard product
DK800B standard product
Special specifications
Special specifications
Alarm section
Phase A/B is Hi level
Line driver
Output: phase A/B/Z
Receiver
Line receiver
AM26C32 or equivalent
20 m/65.6' or less