Teledyne 200AH 用户手册

 

There are two types of current loop outputs available for the M200AH, non-isolated (standard 
equipment) and isolated (optional). These outputs may be used in place of the analog voltage 
signals that appear at the rear panel connector. See Section 9.3.3.1 for setup and calibration 
procedure.  

Non-isolated 4-20 mA is recommended for applications requiring a current loop and the current 
loop receiver has an isolated input stage. It can also be used when there a potential difference 
does not exist between the ground connections of the two instruments.  

Recommended load (R

l

) = 100

 - 600 (Max. 600) 

V/F analog output voltage setting = +10 V Full Scale 

Default Setting = 4-20 mA 

To convert from 4-20 mA to 0-20 mA output, refer to Status/Temp Schematic 01087 sheet 2, and 
the procedure in Section 9.3.3.1. 

This option is recommended where maximum isolation from ground loops is required. 
Specifications include up to 1500 V rms common mode voltage isolation (transformer coupled 
input to output galvanic isolation) and 240 Vrms normal mode voltage output protection.  

Recommended load (R

l

) = 200

 - 1000 (Max. 1200) 

V/F analog output voltage setting = +5V Full Scale 

Default Setting = 4-20 mA 

To convert from 4-20 mA to 0-20 mA output, refer to Status/Temp Schematic in the Appendix, 
and the procedure in Section 9.3.3.1. 

The Power Supply Module consists of several subassemblies described in Table 9-10.