Total Hydrocarbon Analyzer
3.3.3.7 R
ANGE
There are three dedicated Range ID relay contacts. They are
assigned to relays in ascending order—Low range is assigned to Range
1 ID, Medium range is assigned to Range 2 ID, and High range is
assigned to Range 3 ID. Table 3-6 lists the pin connections.
Table 3-6: Range ID Relay Connections
Pin
Function
21
Range 1 ID Contact
38
Range 1 ID Contact
22
Range 2 ID Contact
39
Range 2 ID Contact
19
Range 3 ID Contact
18
Range 3 ID Contact
34
Not Used
35
Not Used
3.3.3.8 N
ETWORK
A serial digital input/output for local network protocol. At this
printing, this port is not yet functional. It is to be used in future options
to the instrument. Pins 13 (+) and 29 (–).
3.3.3.9 P
O
IN
UT
The following table summarizes all the outputs/inputs available in
the 50 pin D-Sub connector on the backpanel of the analyzer.
Table 3-7: Pin out of 50 pin D-Sub Connector
pin #
Description
1
2
3
+ Range ID 4-20 ma
4
- Range ID 4-20 ma
5
+ Output 4-20 ma
6
- Output 4-20 ma
7
- Output 0-1 v
8
+ Range ID 0-1 v
Teledyne Analytical Instruments
ID R
ELAYS
I/O
T
ABLE
Installation
23