Difference between revisions of "PIR Pin Outs"
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**F ? | **F ? | ||
| − | I sent an email to Eppley: | + | *I sent an email to Eppley: |
Hi Tom, | Hi Tom, | ||
After some testing, it seems our old Eppley PIR (S/N 11659F3), with the 6 pin connector has a different pin configuration than you described in the email below. We think pins A and B are the thermopiles and pins D and E are a thermistor (hopefully case temperature?). | After some testing, it seems our old Eppley PIR (S/N 11659F3), with the 6 pin connector has a different pin configuration than you described in the email below. We think pins A and B are the thermopiles and pins D and E are a thermistor (hopefully case temperature?). | ||
| − | He responded: | + | *He responded: |
Emily -- I spoke with my technician who calibrated this unit and March and she believes that A & B are the thermopile and C&D are the case thermistor and that there is no dome thermistor. | Emily -- I spoke with my technician who calibrated this unit and March and she believes that A & B are the thermopile and C&D are the case thermistor and that there is no dome thermistor. | ||
| − | This cannot be correct though, based on my field testing. | + | *This cannot be correct though, based on my field testing. |
Revision as of 10:37, 2 May 2019
1990s PIR: PT06A-12-10S amphenol connector or PT06W-12-10S with a MS3420-4 and MS3420 sleeve 1990s PIR pin outs:
- A radiometer thermopile low - black
- C radiometer thermopile hi + red
- D case thermistor required - white
- E case thermistor required - green
- F dome thermistor optional - brown
- G dome thermistor optional - blue
- H Case ground (shield?)
- J not used
- K not used
- YSI 44031 (thermistor model)
1980s PIR: PT06W-10-6S amphenol connector with various MS3420 sleeves
- oldest 1980s (?) PIRs: Emily asks: What are the pinouts for these units? Answer from Eppley:
It depends on the age of the PIR as the 6 pin connectors were used before the dome thermistors were included standard and then we switched to the 10 pins. However, certain customers continued to request the 6 pin in some cases. The wiring of the 6 pin PIR is probably:
- A: Thermopile (-) black
- B: Thermopile (+) red
- C: Case Thermistor required white
- D: Case Thermistor required green
- E: Instrument Ground or Dome Thermistor brown
- F: not used or Dome Thermistor blue
- Shield is the Ground
- Belden Cable 6 conductor twisted and shielded 20 or 22 awg
After a field trip to Upper Kuparuk Met on 7/7/2017, I found that the Pinouts described by Eppley above, for the older style PIRs were incorrect. I guess it really does depend on the age of the PIR. This is what I found after field testing:
- PIR old style 6 pin was actually:
- A +Hi red
- B -lo black
- C ?
- D Case Thermistor green
- E Case Thermistor shield
- F ?
- I sent an email to Eppley:
Hi Tom,
After some testing, it seems our old Eppley PIR (S/N 11659F3), with the 6 pin connector has a different pin configuration than you described in the email below. We think pins A and B are the thermopiles and pins D and E are a thermistor (hopefully case temperature?).
- He responded:
Emily -- I spoke with my technician who calibrated this unit and March and she believes that A & B are the thermopile and C&D are the case thermistor and that there is no dome thermistor.
- This cannot be correct though, based on my field testing.
