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ST2516 Series Operation Manual
8) Handler Interface
ST2516 DC Resistance Meter equips with a Handler interface which is mainly used to output the sorting result. When the instrument is applied to an automatic component sorting test system, this interface will output the handshake signal and the sorting result output signal. The sorting result output corresponds to the comparison result output of the current comparator bin.
Terminals and Their Descriptions:
Terminal number
Terminal name
Description
1 START Measurement trigger signal, falling edge is valid. When the instrument holds in the external trigger mode and this signal is valid, the instrument will trigger a measurement.
4
5
2
3
6
PASS2
FAIL
+5V
EXT_VCC
PASS1
The low bin 2 comparison result output signal will be valid.
The low bin comparison result output signal will be valid.
Internal +5V power output.
When the “Handler” power supply is set as “External”, the terminal is external power source and the voltage ranges from +5V to +30V; when the “Handler” power supply is set as “Internal”, the terminal is internal power source.
The low bin 1 comparison result output signal will be valid.
7
8
9
Sequence chart
PASS3
EOC
The low bin 3 comparison result output signal will be valid.
Measurement end signal. The low output signal will be valid.
EXT_GND When the “Handler” power supply is set as “External”, the terminal is external GND; when the “Handler” power supply is set as “Internal”, the terminal is internal GND.
NOTE: P1/P2/P3 is PASS1/PASS2/PASS3 signal.
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ST2516 Series Operation Manual
Time t1: trigger pulse width t2: measurement time at one time t3: sampling time of one measurement
Minimum value
1ms t3+t4
1 Sampling Time
Maximum value
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--- t4: data processing and display time of one measurement t5: end of sampling to control output time t6: measurement delay time
Display “ON”: 22ms
Display “OFF”: 5ms
2ms
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See the setup for measurement delay
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When OVC is OFF: Sampling Time = 5ms (50 Hz) / 5ms(60 Hz) Fast
20 ms (50 Hz) / 16.6ms(60 Hz) Medium
110 ms (50 Hz) / 110ms(60 Hz) Slow
450 ms (50 Hz) / 450ms(60 Hz) Slow
When OVC is ON: Sampling Time = 10 ms + t6 (50 Hz) / 10ms + t6 (60 Hz) Fast
40 ms + t6 (50 Hz) / 33ms + t6 (60 Hz) Medium
220 ms + 9* t6 (50 Hz) / 220 ms + 11* t6 (60 Hz) Slow
900 ms + 39*t6(50 Hz) / 900 ms + 47*t6(60 Hz) Slow
Electrical Characteristics
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