User`s manual

PK2100

B-4 s Appendix B: Specifications

Jumper and Header Specifications

Figure B-3 shows the locations of the PK2100 headers and jumpers.

H11

114

J11

Figure B-3. Locations of PK2100 Headers and Jumpers

The jumper configurations are described in Table B-2, Table B-3, and

Table B-4..

Table B-2. PK2100 Header Descriptions

Header Description

When H1 is connected, a 10 kΩ excitation resistor, RP6A, is

connected between the +10 V reference and the high-gain

input AD+.

Connect a jumper across H7 to cause differential inputs AD+

and AD– to be balanced in gain. If the jumper is discon-

nected, the gain is greater on the AD+ side, so that if both

inputs are set to 5 V, the output of the operational amplifier is

5 V. Use this feature to accept input from bridges where the

taps are nominally at +5 V.

A jumper across H9 connects the internal battery to relay 1

N.O. contact. Use H9 when a battery self-test circuit is to be

implemented by connecting a switched load to the battery.

H11 A jumper is normally installed across H11 to connect K to the

+24 V power supply. Disconnect only if a separate power

supply is to be used for high-current outputs O1–O7. In that

case,

K must be connected to that power supply.

J7 Connect 2-3 on J7 for voltage output on the DAC channel

(factory setting). Connect 1-2 for 20 mA current output.