Delta NANOTRACE DF-745 Instruction Manual download pdf (Page 59)

User Interface DF-745 55

7.4.8 Analog Output Setup

Figure 54: Analog Output Setup Menu

The Zero Point corresponds to the lowest voltage or current output (0 VDC, 4 mA) that is

sent to a recorder, while the Full Scale corresponds to the maximum voltage or current

output (1/5/10 VDC or 20mA) that is sent. The Full Scale set point (FS) is set from 0.002

ppm to 20.00 ppm.

Three ranges can be entered in this screen. The range of the primary Full Scale (FS) must

be less than that of the Expanded Full Scale “A” (FS A) which must be less than that of the

Expanded Full Scale “B” (FS B). The analyzer auto-ranges between the three outputs

depending on the current analyzer reading. Relay contacts can then be assigned to signal a

change in range. If only one expanded range is required, rather than two, then the value of

FS B should be set to equal the FS A value.

A window as narrow as 10% of the analyzer’s decades can be set for the full-scale analog

output.

Figure 55: Analog Output Setup Screen

1 2 ... 54 55 56 57 58 59 60 61 62 63 64 ... 97 98

No comments

Delta NANOTRACE DF-745 Instruction Manual Page 59