Chromalox TEMPERATURE CONTROLLER 1604-7 - Manual (Page 12)

9
PRELIMINARY HARDWARE
SETTINGS
1) Remove the instrument from its case.
2) It is necessary to set J106 according to the
desired input type as shown in the following figure.
INPUT J106
TYPE 1-2 3-4 5-6 7-8 9-10
TC-RTD open close open open open
60 mV open close open open open
5 V close open close open open
10 V open open close open open
20 mA open open open close close
NOTE : the not used jumper can be positioned on
pin 7-9
OPEN INPUT CIRCUIT
This instrument is able to identify the open circuit
for TC and RTD inputs.
The open input circuit condition for RTD input is
shown by an "overrange" indication.
For TC input, it is possible to select overrange
indication (standard) or underrange indication set-
ting the CH101 and SH101 according to the follow-
ing table:
Overrange (STD) CH101 = close SH101 = open
Underrange
CH101 = open SH101 = close
Both pads are located on the soldering side of the
CPU card
Fig. 14
Fig. 13
1 3 5 7 9
2 4 6 8 10
J106 V101
CH101 SH101
1604-7-1-AB.p65 5/16/00, 10:50 AM 9