Agilent Technologies 7820A Service Manual

Agilent 7820 GC Service
203
Sensor resistance
The approximate resistance of a temperature sensor is:
R = 100 + (.35  t)
where R is resistance in ohms and t is sensor temperature in °C.
Temperature Sensor Resistance by Heater Temperature
°C
+0°
+10°
+20°
+30°
+40°
+50°
+60°
+70°
+80°
+90°
+100°
0°
100.00
103.90
107.79
111.67
115.54
119.40
123.24
127.07
130.89
134.70
138.50
100°
138.50
142.28
146.06
149.82
153.57
157.32
161.04
164.76
168.47
172.16
175.84
200°
175.84
179.51
183.17
186.82
190.46
194.08
197.70
201.30
204.88
208.46
212.03
300°
212.03
215.58
219.13
222.66
226.18
229.69
233.19
236.67
240.15
243.61
247.06
400°
247.06
250.50
253.34
257.34
260.75
264.14
267.52
270.89
274.25
277.60
280.93
Table 6. Nominal inlet and detector
heater/sensor resistances
Inlet or Detector
Heater type
Nominal heater
resistance
Sensor type/comments
Split/splitless
70 W
23 
100  PRT
Purged packed
70 W
23 
100  PRT
FID
70 W
23 
100  PRT
TCD
70 W
23 
100  PRT
NPD
70 W
23 
100  PRT
uECD
70 W
23 
100  PRT
FPD
60 W (2 each)
26-27 
100  PRT (2 each)
Other
MSD transfer line
95 W
100  PRT
Valve box heater
70 W
23 
100  PRT

Agilent Technologies 7820A Specifications

General

Brand	Agilent Technologies
Model	7820A
Category	Laboratory Equipment
Language	English