User guide

Appendix C

Rear Panel Connections

Both the signal output and the AUX sockets are 8-pin circular

mini-DINs. The following information is provided for those wishing to

interface the Model EM-1 Econo UV Monitor with other equipment

such as integrators and non Bio-Rad fraction collectors. System Cable 7

may be used as a breakout cable, with an 8-pin mini-DIN at one end and

loose wires at the other.

Do not attempt to use the socket for anything other than the

Model EM-1 Econo UV Monitor optics unit.

All digital inputs use TTL circuitry and are active LOW.

Pin # Function Notes

1 Connects to Paper stop

AUX Pin 1

2 No Contact

3 No Contact

4 Integrator (+) 0 to 1 V = 0 to 2 AU

5 Chart Recorder (+) 0 to 1 V = Full scale

6 Connects to Pen down

AUX Pin 6

7 Ground

8 No Contact

Pin # Function Notes

1 Connects to

Pin 1

2 Auto-Zero

3 Large Mark Marks chart recorder

signal only

4 Integrator (+) 0 to 1 V = 0 to 2 AU

5 No Contact

6 Connects to

Pin 6

7 Ground

8 Small Mark Marks chart recorder

signal only

configuration

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