Diagnostics and Troubleshooting
8
XPR300
Instruction Manual
809480
297
Table 35
– Minimum and maximum ohmic resistance values for thermistors
At approximately 25ºC (77ºF), you can expect a resistance of
approximately 10,000 ohms.
d.
If the resistance value is above the maximum, contact your cutting machine supplier or
regional Hypertherm Technical Service team. They can help you to decide if there is a wiring
fault or if thermistor replacement is necessary.
e.
If the resistance value is at or very near 0 ohms:
Inspect the wiring between each thermistor and its connector pins.
Look for shorts between wires or to the ground.
Thermistor temperature
Minimum resistance (Ohms)
Maximum resistance (Ohms)
25ºC (77ºF)
9,000
11,000
35ºC (95ºF)
5,000
7,000
45ºC (113ºF)
3,900
4,900
55ºC (131ºF)
2,500
3,500
65ºC (149ºF)
1,500
2,500
75ºC (167ºF)
1,000
2,000
85ºC (185ºF)
750
1,250
95ºC (203ºF)
600
1,000
105ºC (221ºF)
400
800
115ºC (239ºF)
300
600
125ºC (257ºF)
200
500
135ºC (275ºF)
150
400
145ºC (293ºF)
150
250
155ºC (311ºF)
125
225
165ºC (329ºF)
100
175
Summary of Contents for XPR300
Page 1: ...XPR300 Plasma Instruction Manual 809480 Revision 2 English ...
Page 18: ...Contents 18 809480 Instruction Manual XPR300 ...
Page 34: ...Specifications 1 34 809480 Instruction Manual XPR300 ...
Page 66: ...Qualifications and Requirements 2 66 809480 Instruction Manual XPR300 ...
Page 188: ...Connect for Communication 4 188 809480 Instruction Manual XPR300 ...
Page 192: ...Coolant Installation 5 192 809480 Instruction Manual XPR300 ...
Page 230: ...Operation 6 230 809480 Instruction Manual XPR300 ...
Page 337: ...Parts List 9 XPR300 Instruction Manual 809480 337 ...
Page 343: ...Parts List 9 XPR300 Instruction Manual 809480 343 ...
Page 380: ...Wiring Diagrams 10 380 809480 Instruction Manual XPR300 ...
Page 381: ...381 Overview Sheet 1 of 22 013403 013403 ...
Page 382: ...382 Plasma power supply 1 Sheet 2 of 22 013403 ...
Page 383: ...383 Plasma power supply 2 Sheet 3 of 22 013403 ...
Page 384: ...384 Plasma power supply 3 Sheet 4 of 22 013403 ...
Page 385: ...385 Plasma power supply 4 Sheet 5 of 22 013403 ...
Page 386: ...386 Plasma power supply 5 Sheet 6 of 22 013403 ...
Page 387: ...387 Plasma power supply 6 Sheet 7 of 22 013403 ...
Page 388: ...388 Plasma power supply 7 Sheet 8 of 22 013403 ...
Page 389: ...389 Gas connect console 1 Sheet 9 of 22 013403 ...
Page 390: ...390 Gas connect console 2 Sheet 10 of 22 013403 ...
Page 391: ...391 Torch connect console Sheet 11 of 22 013403 ...
Page 392: ...392 Coolant system Sheet 12 of 22 013403 ...
Page 393: ...393 Gas system 1 Sheet 13 of 22 013403 ...
Page 394: ...394 Gas system 2 Sheet 14 of 22 013403 ...
Page 395: ...395 Gas system 3 Sheet 15 of 22 013403 ...
Page 402: ...402 Wireless subsystem block diagram Sheet 22 of 22 013403 ...