Teledyne 200AH 用户手册

 

The analog signal output is available on the rear panel as a voltage or 4-20 mA current output. 
Optionally the current loop outputs can be isolated. See Section 6.3 for a description of isolated 
current loop outputs. 

The current outputs come out on the same terminals that are used for voltage outputs see  
Figure 2-2. The NO, NO

x

, NO

2

 and Test Channel outputs have current loop capabilities. See 

The factory default is voltage outputs. To convert from voltage to current loop, move the 
jumpers on the motherboard from the default B-C (rear pins) position to the A-B (forward pins) 
position. See the 01110 Motherboard schematic in the Appendix. 

The status output is an option that reports Analyzer conditions via contact closures on the rear 
panel. The closures are available on a 50 pin connector on the rear panel. The contacts are NPN 
transistors which can pass 50 ma of direct current. The pin assignments are listed in Table 5-8. 

1 

1,2 

ZERO CAL 

CLOSED IN ZERO CAL 

2 

3,4 

SPAN CAL 

CLOSED IN HIGH SPAN CALIBRATION 

3 

5,6 

FLOW ALARM 

CLOSED IF FLOW WARNING 

4 

7,8 

TEMP ALARM 

CLOSED IF ANY TEMP WARNING 

5 

9,10 

DIAG MODE 

CLOSED IN DIAG MODE 

6 

11,12 

POWER OK 

CLOSED IF SYSTEM POWER OK 

7 

13,14 

CONC ALARM 

CLOSED IF CONCENTRATION 
WARNING 

8 

27,28 

LOW SPAN CAL 

CLOSED IN LOW SPAN CALIBRATION 

9  

SPARE 

 

10 

19,20 

AUTORANGE - HI 

CLOSED IF IN HIGH RANGE 

11 

21,22 

SYSTEM OK 

CLOSED IF NO FAULTS PRESENT 

12 

23,24 

RX CELL PRESS 

CLOSED IF ABS PRES > 15" HG 

 

The Status Board schematic can be found in the Appendix Drawing 01087.