
MX4428 MXP Engineering / Technical Manual
Document: LT0273
MXP Loop Filter Board
Page 9-4
24 March 2006
Issue 1.5
9.3
HEAT
PROCESSING
9.3.1 CONVERSION
OF
DETECTOR READING TO
°
C
The temperature readings from the detector (814H or the temperature element of an 814PH
or 814CH) are returned from input AI1 of the MX ASIC. These are converted to
°
C according
to the following table. This gives the closest temperature for each reading.
Rdg
°
C
Rdg
°
C
Rdg
°
C
Rdg
°
C
Rdg
°
C
Rdg
°
C
Rdg
°
C
0
Fault
40
7
80
26
120
42
160
59
200
80
240
120
1
Fault
41
7
81
27
121
42
161
59
201
81
241
120
2
Fault
42
8
82
27
122
43
162
60
202
82
242
120
3
Fault
43
8
83
28
123
43
163
60
203
83
243
120
4
Fault
44
9
84
28
124
44
164
60
204
84
244
120
5
0
45
9
85
28
125
44
165
61
205
85
245
120
6
0
46
10
86
29
126
44
166
61
206
85
246
120
7
0
47
10
87
29
127
45
167
62
207
86
247
120
8
0
48
11
88
30
128
45
168
62
208
87
248
120
9
0
49
12
89
30
129
45
169
63
209
88
249
120
10
0
50
12
90
30
130
46
170
63
210
89
250
120
11
0
51
13
91
31
131
46
171
64
211
90
251
Fault
12
0
52
13
92
31
132
47
172
64
212
90
252
Fault
13
0
53
14
93
32
133
47
173
65
213
91
253
Fault
14
0
54
14
94
32
134
48
174
65
214
92
254
Fault
15
0
55
15
95
32
135
48
175
66
215
93
255
Fault
16
0
56
15
96
33
136
48
176
67
216
94
17
0
57
16
97
33
137
49
177
67
217
95
18
0
58
16
98
34
138
49
178
68
218
95
19
0
59
17
99
34
139
50
179
68
219
97
20
0
60
17
100
34
140
50
180
69
220
98
21
0
61
18
101
35
141
50
181
69
221
99
22
0
62
18
102
35
142
51
182
70
222
100
23
0
63
19
103
35
143
51
183
70
223
102
24
0
64
19
104
36
144
52
184
71
224
103
25
0
65
20
105
36
145
52
185
72
225
104
26
0
66
20
106
37
146
53
186
72
226
105
27
0
67
20
107
37
147
53
187
73
227
107
28
0
68
21
108
37
148
53
188
73
228
108
29
0
69
21
109
38
149
54
189
74
229
109
30
0
70
22
110
38
150
54
190
74
230
110
31
0
71
22
111
39
151
55
191
75
231
112
32
1
72
23
112
39
152
55
192
75
232
114
33
2
73
23
113
39
153
55
193
76
233
115
34
3
74
24
114
40
154
56
194
77
234
117
35
3
75
24
115
40
155
56
195
77
235
119
36
4
76
25
116
40
156
57
196
78
236
120
37
5
77
25
117
41
157
57
197
79
237
120
38
5
78
25
118
41
158
58
198
79
238
120
39
6
79
26
119
42
159
58
199
80
239
120
The temperature is then processed according to Figure 9.1 to generate the various alarm
and pre-alarm conditions. The RORCV value is also used for enhancement of the smoke or
CO values when this is enabled.