Analog Output Current Values In Dependence Of Fail-Safe Error Codes; Table 13: Fail-Safe Error Codes; Table 14: Current Output Values In Accordance To An Error - Fluke endurance series User Manual

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Condition
Heater control temperature over range
Heater control temperature under range
Internal temperature over range
Internal temperature under range
Wide band detector failure
Narrow band detector failure
Energy too low
Attenuation too high (>95%)***
Attenuation too high >95%
("dirty lens", relay will go to "alarm" state)***
2-color temperature under range
2-color temperature over range
Wide band temperature under range
Wide band temperature over range
Narrow band temperature under range
Narrow band temperature over range
* only available via RS485 or LAN / Ethernet command
** Wide and narrow band stands for the first and the second wavelength in 2-color mode
*** Note that the activation levels for these conditions may be set to different values.
(e.g., "dirty lens" at 95%, EAAA at 98%)

11.2.2. Analog Output current values in dependence of Fail-Safe Error Codes

The relay is controlled by the temperature selected on the display. If any failsafe code
appears on the display, the relay changes to the "abnormal" state. The exception is the "dirty
window" condition. This causes the relay to change state, leaving a normal numerical
temperature output.

Table 14: Current Output Values in accordance to an Error

Error Code 0 – 20 mA Output
no error
ECHH
ECUU
EIHH
EIUU
EUUU
EHHH
EAAA
If two or more errors occur simultaneously, the error with the highest priority overrules the
lower priority errors. The highest priority error will be displayed on the 7-segment temperature
display and the assigned analog output (current) value (see Table 14) will be set. For
instance, in 2-color mode, if the internal ambient temperature is over the limit and the
attenuation is to high too, the unit outputs EIHH to the temperature display and sets an analog
output current of 21 mA on the analog current loop output lines. However, since 2-color wide
band and narrow band temperatures may all be presented simultaneously through RS485 or
LAN / Ethernet interface, their over and under range conditions are independent.
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Table 13: Fail-safe Error Codes

2-Color
ECHH
ECUU
EIHH
EIUU
EHHH
EHHH
EUUU
EAAA
<temperature>
EUUU
EHHH
<temperature>
<temperature>
<temperature>
<temperature>
according to temperature according to temperature
21 to 24 mA
0 mA
21 to 24 mA
0 mA
0 mA
21 to 24 mA
0 mA
1-Color 1-Color*
(wide band)** (narrow band)**
ECHH ECHH
ECUU ECUU
EIHH EIHH
EIUU EIUU
EHHH <temperature>
<temperature> EHHH
<temperature> <temperature>
<temperature> <temperature>
<temperature> <temperature>
<temperature> <temperature>
<temperature> <temperature>
EUUU <temperature>
EHHH <temperature>
<temperature> EUUU
<temperature> EHHH
4 – 20 mA Output
21 to 24 mA
2 to 3 mA
21 to 24 mA
2 to 3 mA
2 to 3 mA
21 to 24 mA
2 to 3 mA
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