Checking The Temperature Input - ABB AX416 User Manual

Single and Dual Input Analyzers for pH/Redox (ORP)
AX416, AX436, AX460, AX466 & AX468

8.3 Checking the Temperature Input

Check the analyzer responds to a temperature input.
Disconnect the Pt100/Pt1000/Balco 3K leads and connect a
suitable resistance box directly to the analyzer inputs - see
section 6.4, page 50 (wall-/pipe-mount analyzer) or see section
6.5, page 52 (panel-mount analyzer). Check the analyzer
displays the correct values as set on the resistance box - see
Table 8.2.
Incorrect readings usually indicate an electrical calibration
problem. Re-calibrate the analyzer as detailed in Section 7.
Temperature
ºC ºF Pt100
0 32 100.00
10 50 103.90
20 68 107.79
25 77 109.73
30 86 111.67
40 104 115.54
50 122 119.40
60 140 123.24
70 158 127.07
80 176 130.89
90 194 134.70
100 212 138.50
130.5 267 150.00
Table 8.2 Temperature Readings for Resistance Inputs
64
Input Resistance (Ω)
Pt1000 Balco 3K
1000.0 2663
1039.0 2798
1077.9 2933
1097.3 3000
1116.7 3068
1155.4 3203
1194.0 3338
1232.4 3473
1270.7 3608
1308.9 3743
1347.0 3878
1385.0 4013
1500.0 4424
8 SIMPLE FAULT FINDING
IM/AX4PH Issue 9