Difference between revisions of "Molectron"

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Relatively cheap impulse buy to compare EEPROM formats
 
Relatively cheap impulse buy to compare EEPROM formats
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{| class="wikitable"
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|+
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!Pin
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!Function
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!Notes
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|-
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|1
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|
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|Silkscreen: Th
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|-
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|2
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|
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|Silkscreen: Py
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|-
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|3
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|Sensor +
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|Silkscreen: SG
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|-
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|4
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|
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|Silkscreen: S1
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 +
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4, 6, 14,16 shorted
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W3 to W4 jumper
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|-
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|5
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|EEPROM CSn
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|Pullup resistor to VCC
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|-
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|6
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|
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|4, 6, 14,16 shorted
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|-
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|7
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|
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|
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|-
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|8
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|
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|
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|-
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|9
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|Jumper
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|N/C
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|-
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|10
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|Jumper
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|10-12 shorted
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|-
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|11
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|Jumper
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|10-12 shorted
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|-
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|12
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|Jumper
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|10-12 shorted
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|-
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|13
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|EEPROM VSS
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|
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|-
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|14
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|
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|4, 6, 14,16 shorted
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|-
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|15
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|Sensor -
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|
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|-
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|16
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|
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|4, 6, 14,16 shorted
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|-
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|17
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|
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|
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|-
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|18
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|
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|
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|-
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|19
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|
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|
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|-
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|20
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|
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|
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|-
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|21
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|
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|
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|-
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|22
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|EEPROM SCK
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|
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|-
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|23
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|EEPROM SI
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|
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|-
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|24
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|EEPROM SO
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|
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|-
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|25
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|EEPROM VCC
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|2.5-5.5V
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 +
 +
 +
 +
  
 
===3Sigma (eBay) meter===
 
===3Sigma (eBay) meter===

Revision as of 02:46, 27 October 2021

Information on Molectron / coherent laser power meters. Ultimately for the ezlaze project. I'm mostly interested in pyroelectric heads for pulsed power.

Ecosystem

Ecosystems:

  • J DB-25 smart probes
    • Interface: DB25
    • Also known as JSA?
    • 3sigma, FieldMax-TOP, FieldMax-TO, FieldMate.s
    • Intended to be used with J25, J50 power probes
    • I also have an S10 energy probe, seems to be compatible
  • LM DB-25 smart probes
    • Interface: DB25
    • Intended to be used with LM probes

Warning: J25 and LM are not compatible.

Other DB25 probes (none are known to be compatible):

  • Ophir
  • Laserpoint
  • Gentec
  • Newport

List of Molectron related power meters:

  • 3sigma
  • 4omega
  • FieldMate
  • FieldMax-TO
  • FieldMax-TOP
  • Fieldmaster

Lots of good info:

  • Energy Sensors Coherent J25.pdf
  • 2009_LMCCatalog86.pdf


There was a conversion box you could buy at one point though (thermal-smartsensor-adapter-data-sheet.pdf), so it might just be different EPROM format

  • JSA-BNC Adapter
  • 0012-2340: JSA-BNC Adapter for use with 3sigma, FieldMax-TOP, and FieldMax-P
  • 1056827: SmartSensor Adapter for use with 3sigma, FieldMax-TOP, FieldMax-TO,and FieldMate
  • Automatically configures itself to work with LM-model sensors


J25

TODO: figure out pinout, EEPROM format so I can recal and upgrade adapters

LM

3Sigma

File archive: 

3sigmaAppQuickRef.pdf
3sigmaLVDriverUG.pdf
3sigma_LV_Driver.zip
3sigma Users Manual.pdf
3sigmaWinApps.zip


JD1000

Power supply: CS-1203000 (12V @ 3A, center positive)

McMaster

J25LP sensor

Came with JD1000. BNC output but no 25 pin adapter

Back: 

MODEL NO: J25LP
SERIAL NO: 238

RESPONSITIVITY
5.10 VOLT/JOULE
337.1 nm

S10 sensor

From 3Sigmal (eBay)


3Sigma output: 

Probe Resp: 2.570E-1 A/W @ 514 nm
Probe Cal Date Sep 10 2003
Wavelenth Corr 1064 nm / On
Attenuation Corr: 1.00E0 / Off
Area Corr 1.0000 sq cm / Off

DB25 label: 

Molectron
MODEL NO.: S10
SERIAL NO. 0338H03

DB25 label: 

Molectron
SER NO 0338H03
CAL DATE 9/18/03
CAL DUE 9/18/04
TECH B DUNLAP
0011-6322
TRACETABLE TO NIST

Cable label: 0012-2530


25LC320

  • 32K SPI Bus Serial EEPROM
Pin Function Notes
1 Silkscreen: Th
2 Silkscreen: Py
3 Sensor + Silkscreen: SG
4 Silkscreen: S1


4, 6, 14,16 shorted

W3 to W4 jumper

5 EEPROM CSn Pullup resistor to VCC
6 4, 6, 14,16 shorted
7
8
9 Jumper N/C
10 Jumper 10-12 shorted
11 Jumper 10-12 shorted
12 Jumper 10-12 shorted
13 EEPROM VSS
14 4, 6, 14,16 shorted
15 Sensor -
16 4, 6, 14,16 shorted
17
18
19
20
21
22 EEPROM SCK
23 EEPROM SI
24 EEPROM SO
25 EEPROM VCC 2.5-5.5V


EEPROM pins:

  • 3 WPn
  • 7 HOLDn
  • 8 VCCn


EEPROM wiring:

EEPROM pin Function DB25 pin
1 CSn 5
2 SO 24
3 WPn N/C

(25)

4 VSS 13
5 SI 23
6 SCK 22
7 HOLDn N/C

(25)

8 VCC 25

J-25MB-HE sensor

3Sigma output: 

FIXME

Cable label: 

COHERENT
Item# 1110748
Model: J-25MB-HE
Serial#: 0984E07R

Responsitivity
6.694e + 0 V/J
Cal 1064 nm

LM-10

LM-10 HTD 250-10600nm 10mW-10w 500mJ/cm2 10ns @ 1064n Laser

Relatively cheap impulse buy to compare EEPROM formats



Pin Function Notes
1 Silkscreen: Th
2 Silkscreen: Py
3 Sensor + Silkscreen: SG
4 Silkscreen: S1


4, 6, 14,16 shorted

W3 to W4 jumper

5 EEPROM CSn Pullup resistor to VCC
6 4, 6, 14,16 shorted
7
8
9 Jumper N/C
10 Jumper 10-12 shorted
11 Jumper 10-12 shorted
12 Jumper 10-12 shorted
13 EEPROM VSS
14 4, 6, 14,16 shorted
15 Sensor -
16 4, 6, 14,16 shorted
17
18
19
20
21
22 EEPROM SCK
23 EEPROM SI
24 EEPROM SO
25 EEPROM VCC 2.5-5.5V




3Sigma (eBay) meter

Came with CW sensor

3Sigma (dumpster dive) meter

Came w/ sensor + BNC adapter

Screen is messed up

Came with Lemo cable. Doesn't fit trigger ports or anything I can tell

JD1000 meter

Capacitor exploded when plugged in (presumably due to age). Didn't work after, although some lights turned on. Scrapped

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