Service manual

Section - VIII Sampling Station BT3000 PLUS Rev. 0, Soft Ver. 8 Page 7 of 10

8-3.3. LEFT SERUM PRIMARY TUBE SENSOR

BOARD (15-04280-01)

This supplementary circuit is located on the left of the serum chamber. It

accommodates a noninvasive infrared detector housed in a PVC body, for the

detection of the primary tube. This circuit board is connected to the Serum Plate

Controller Board (15-04422-01) through the J1 connector, passing through the

another supplementary circuit board on the right. Close by, there is a Hall sensor

module connected to the Serum Hall Sensor Board (15-04282-01) on the serum

plate, which is connected by the J2 connector, to the Serum Primary Tube Sensor

Board (15-04280-01).

The Hall sensor uses the Smith trigger, while the primary tube sensor uses the

U2A-B amplifier in the A.C mode. The emitter LED EM1 is impulse-driven through

the U1C oscillator.

8-3.4. RIGHT SERUM PRIMARY TUBE SENSOR

BOARD (15-04278-01)

This supplementary circuit is located on the right of the serum chamber. This

circuit is identical to the one outlined in the preceding paragraph, but without the

control for the Hall sensor. For operating characteristics, refer to the preceding

paragraph. The J2 connector attaches to the identical board on the left. The J1

connector interconnects these two identical boards through a flat cable to the

Serum Plate Controller Board (15-04422-01).

SERUM MOTOR

CBUS

SERUM BAR-CODE

VACUTAINER SERUM "R"

SERUM PLATE CONTROLLER MODULE

Figure 8-6

C BUS

BOARD 15-04422-01