Bacharach H25-IR PRO, User Manual

Page: 78 / 128

Operation H25-IR PRO Instruction Manual
68 P/N: 3015-5678 Rev 6
5.6.6. Loop Factor
NOTE: The Loop Factor setting configures the 4-20mA current output for the sample range. By default, the
standard 4-20mA output is mapped linearly to the input reading range (for example, with “ppm” set as the unit
of measure, and a range of 0 ppm to 1000 ppm, each of the 1000 ppm steps corresponds to the default
0.016 mA). This can be adjusted to your particular application using the Loop Factor setting and the following
equation.
𝐋𝐨𝐨𝐩 𝐎𝐮𝐭𝐩𝐮𝐭 𝐢𝐧 𝐦𝐀 = (𝐋𝐨𝐨𝐩 𝐅𝐚𝐜𝐭𝐨𝐫 × 𝐏𝐏𝐌) + 𝟒𝐦𝐀
Table 5-25. Default Loop Factor Mapping Example (0.016 mA = 1 PPM)
Output PPM (Default) Output PPM (Default)
4 mA DC 0 PPM 13 mA DC 563 PPM
5 mA DC 63 PPM 14 mA DC 625 PPM
6 mA DC 125 PPM 15 mA DC 688 PPM
7 mA DC 188 PPM 16 mA DC 750 PPM
8 mA DC 250 PPM 17 mA DC 813 PPM
9 mA DC 313 PPM 18 mA DC 875 PPM
10 mA DC 375 PPM 19 mA DC 937 PPM
11 mA DC 438 PPM 20 mA DC 1000 PPM
12 mA DC 500 PPM
Table 5-26. Changing the Loop Factor
Step Button Description Sample Screen(s)
1 See Table 5-14
on page 53.
Follow the steps in Table 5-14
on page 53 to highlight the
Loop Factor option.
<< ADVANCED SETUP >>
DATE/TIME SET
­
LOG LIMIT
LOOP FACTOR
SERIAL DATA
PROBE BUTTON
qp SELECT ± EDIT