User guide

Part 1 Control Unit Model 3010MA
36 Teledyne Analytical Instruments
12 (-) Remote Span 37 System Alarm, NO Contact
13 38 Range 1 ID Contact
14 39 Range 2 ID Contact
15 Remote ZERO valve (return) 40 Cal Contact
16 Remote SPAN valve (return) 41 Cal Contact
17 Remote SPAN valve (hot) 42
18 Range 3 ID Contact 43
19 Range 3 ID Contact 44
20 System Alarm Moving Contact 45
21 Range 1 ID Contact 46
22 Range 2 ID Contact 47
23 (-) Range ID, 0-1VDC neg gnd 48 Remote EXHAUST valve (return)
24 (+) % Range, 0-1VDC 49 Remote ZERO valve (hot)
25 50 Remote SAMPLE valve (return)
* Available by special option only.
3.3.2.4 RS-232 PORT
The digital signal output is a standard RS-232 serial communications
port used to connect the analyzer to a computer, terminal, or other digital
device. It requires a standard 9-pin D connector.
The data is status information, in digital form, updated every two
seconds. Status is reported in the following order:
 The concentration in percent
 The range in use (HI, MED, LO)
 The span of the range (95-100%, etc)
 Which alarms—if any—are disabled (AL–x DISABLED)
 Which alarms—if any—are tripped (AL–x ON).
Each status output is followed by a carriage return and line feed.
Four input functions using RS-232 have been implemented to date.
They are described in Table 3-1.