Appendix A Technical Specifications; Connected To Other Instruments - BIO RAD EP-1 Econo Pump Instruction Manual

Appendix A
Technical Specifications
Number of channels
Flow rate range (per channel)
Pump head speed
Tubing diameter
Speed adjustment
Speed stability
Maximum counterpressure
Motor
Line voltage
Dimensions
Weight
Operating temperature
Material of construction
2
0.1-20 ml/min (depending on tub-
i ng diameter)
25 rpm maximum
0.4 mm ID to 3.2 mm ID
1
1 % of full scale
30 psi (2 kg/cm2 or bars)
DC speed controlled, 55 watts
90-132 VAC
180-265 VAC
47-63 Hz
143 x 202 x 222 mm
( W x D x H) with pumphead
3.3 kg
4 to 40 °C
polypropylene and other solvent
resistant plastics
2 0
Appendix B
Operation of the Model EP-1 Econo Pump When

Connected to Other Instruments

The Model EP-1 Econo Pump provides a variety of output signals which
can be used to control the operation of non Bio-Rad fraction collectors, or to
communicate with non Bio-Rad UV monitors and recording devices.
Communication is accomplished through two standard 8-pin mini-DIN sock-
ets on the rear panel of the pump. The third socket is for the operation of
the Model SV-3 Diverter Valve (see Figure 4.2). Bio-Rad offers an accesso-
ry breakout cable (Econo System cable #7), which has an 8-pin mini-DIN con-
nector at one end and loose wires on the other, for connection to non Econo
System instruments. Output signals are TTL compatible. To use these signals,
you must insure that the circuit external to the Model EP-1 Econo Pump
does not draw more than 15 milliamperes of current. The following table
describes the two rear panel mini-DIN connector pinouts.
Table B. Rear Panel Pinouts
Pinout Signal Type
Shield
1 Fraction Advance
(low-going output)
2 No Contact
3 No Contact
4 No Contact
5 Fraction Advance
(high-going output)
No Contact
6
7 Ground
8 Fraction Advanced Marks to
Recorder (low-going input)
Pinout Signal Type
Shield
1 Start/Enable
(output)
2 No Contact
3 Mark A (output)
4 No Contact
5 No Contact
6 Pen (output)
7 Ground
Mark B (output)
8
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