beautypg.com

Measurement Computing TempScan/1100 User Manual

Page 53

background image

TempScan / MultiScan User's Manual

889897

Scanning Cards 3-5

TempV/32B Description

The TempV/32B voltage scanning module contains 32 differential input channels and is capable of
measuring analog input signals on any of four programmable ranges: ±100 millivolt, ±1 volt, ±5 volt and
±10 volt.


For differential input configuration, each input must have biasing currents. A certain amount of current
must be flowing into the differential inputs or else capacitance-induced noise will make the inputs appear as
noise.

The low side of each differential input channel is provided with a switchable 10-k

Ω resistor to analog

common. This allows a current path when no current is flowing due to no common ground connections or a
high-impedance input source. With no common ground connection, closing the switch connects a 10-k

resistor between the (L) input and ground and provides a common mode impedance.

The relationships between the DIP microswitches and specific channels are described in the table.

TempV/32B Channel-to-Microswitch Relationships

Channel

Microswitch

Channel

Microswitch

Channel

Microswitch

Channel

Microswitch

1

S6-8

9

S3-8

17

S5-8

25

S4-8

2

S6-7

10

S3-7

18

S5-7

26

S4-7

3

S6-6

11

S3-6

19

S5-6

27

S4-6

4

S6-5

12

S3-5

20

S5-5

28

S4-5

5

S6-4

13

S3-4

21

S5-4

29

S4-4

6

S6-3

14

S3-3

22

S5-3

30

S4-3

7

S6-2

15

S3-2

23

S5-2

31

S4-2

8

S6-1

16

S3-1

24

S5-1

32

S4-1


This manual is related to the following products: