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2 Instrument identification
2.2
Type designation
8
ATH-EXx-. .- .
ATH
Surface-mounting thermostat (with capillary)
ATH-EXx
Marking for explosion-protected version
ATH-EXx-.
.- .
Code number for the function:
2 =0Temperature monitor (TW)
7 =0Temperature limiter (TB)
7-F =0Temperature limiter (TB)
20 =0Fail-safe temperature monitor (STW)
70 =0Break-proof protection temperature limiter (STB)
70-F =0Break-proof protection temperature limiter (STB)
ATH-EXx-. .-
.
F =0Designation for factory-set limit setting.
Extra code (TZ) 679:
with changeover contact.
Limit adjustable within the housing.
with changeover contact and restart lock-out.
Limit adjustable within the housing.
with changeover contact and restart lock-out.
Limit is factory-set.
with changeover contact.
Limit adjustable within the housing.
with change-over contact and restart inhibit.
The limit value can be set by the installing engineer–
before commissioning the plant – within the housing.
with change-over contact and restart inhibit.
Limit value set to a fixed value at the factory.
Min. operating temperature: -50°C
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