PM605A Hardware Instruction Manual
16
2.6 Pulse Volume
2.6.1 Pulse Output
Active pulse output, level 5V±5%, current output 100mA;
Max. pulse frequency: 5KHz.
2.6.2 Pulse Input
Active pulse input, level 5
～
24V, current input 1mA;
Max. pulse frequency: 5KHz
2.7 GPS Time Synchronization Input
2.7.1 PGPS Synchronization Device Signal Input
Signal interface of PGPS synchronization: instrument;
Input of pulse per minute and pulse per second: signal type TTL (TTL signal level: +5V
）
2.7.2 Synchronization Time Accuracy
PPM (pulse per minute) and PPS (pulse per second) are the time standard; The pulse edge and
input signal source are synchronized. The time error:
≤10ns
；
Time error of binary output:
≤0.1ms
;
Time error of analog output:
≤0.25ms
