RayTek MI3 Operating Instructions Manual page 124

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ASCII Programming
Description
Char
Top temperature value
H2O
of output 2
Top temperature
H3O
value of output 3
1
Top temperature
H4O
value of output 4
2
Laser Control
HL
3
Head serial number
HN
Head special
HS
Head Firmware Revision HV
Restore Head Factory
HXF
defaults
Head ambient
I
Switch panel lock
J
Relay alarm output
K
control
depreciated for MI3 (use
the commands KB and
KH instead of)
Relay alarm output
KB
control
Relay alarm output
KH
control
Bottom temperature
L1O
value of output 1
(L)
Bottom temperature
L2O
value of output 2
Bottom temperature
L3O
value of output 3
5
Bottom temperature
L4O
value of output 4
6
for MI3MCOMMA only
1
for MI3MCOMMA only
2
for MI3100 heads only
3
for MI3COMM only
4
for MI3MCOMMA only
5
for MI3MCOMMA only
6
124
Format
P B S N Legal Values
float
float
float
nHL
integer
?nHN
integer
?nHS string
?nHV
nHXF
?nI
 
float
X
K
integer
KB
integer
nKH
integer
float
4
float
float
float
Rev. G Nov/2015
  H2O= –40.0
  H3O= –40.0
  H4O= –40.0
  0=off, 1=on, 2=flash,
3=external
e.g. !nHN98123
e.g. !99HSRAY
e.g. 1.01
answer !nI=0099.9
  L = locked
U = unlocked
0 = off
1 = on
2 = Target norm. open
3 = Target norm. closed
4 = Intern norm. open
5 = Intern norm. closed
0 = off
1 = on
2 = norm. open
3 = norm. closed
0 = off
1 = target temp.
2 = head ambient
  L1O= –40.0 or
L= –40.0
  L2O= –40.0
  L3O= –40.0
  L4O= –40.0
Factory default Head /
Box
500°C
B
500°C
500°C
0
H
set at production H
Set at
H
production
Set in FW
H
H
H
unlocked
B
2
H
2
B
1
H
0°C
B
0°C
B
0°C
0°C
MI3

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Jeff Crabb
April 7, 2025

I am currently installing 4 modules, each with 2 of the Raytek MI3 units. 7 of the units arrived with the normal display (Bottom Unit in photo), but 1 has only a full white block in the display. Is this indicative of a failed unit, or would this require external adjustments. These units always work when received, so I am unfamiliar with the required troubleshooting.

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