5.0/ 5.0
100% pembeli merasa puas
1 rating • 1 ulasan
5(1)100%
4(0)0%
3(0)0%
2(0)0%
1(0)0%
Atur jumlah dan catatan
Stok Total: Sisa 4
Subtotal
Rp2.950.000
Explosion Proof Heat Detector Thermotech Model 302-EPM-194 (90°C)
Rp2.950.000
- Kondisi: Baru
- Min. Pemesanan: 1 Buah
- Etalase: LAIN-LAIN
Heat Detector — Rate Compensation, Explosion Proof Mounting, UL, 194 °F (90 °C)
Model 302-EPM, Explosion proof for installation in hazardous locations. Has hexagonal grip bushing with 1/2″ conduit threads for attachment to threaded hub cover of series JL fixture fitting as manufactured by Killark Electric Co., or equal. Must be hand tightened only. For interior use.
General
Each model is a normally open device designed especially for fire
detection and alarm systems. These rate compensation type detectors
are available in either 135° F. or 194° F. ratings. All four basic models
are self restoring, hermetically sealed, shock and corrosion resistant,
and are tamper proof. Refer to NFPA STANDARD 72, STANDARD FOR
AUTOMATIC FIRE DETECTORS for application requirements, testing
and maintenance.
Principal of Operation
All models operate on the principles of a rate compensation detector. The detector consists of a high expansion aluminum tube which
encases two insulation struts with opposing open constant points (see
cut-away view). The high expansion sensing shell and the expansion struts have a different coefficient of expansion. A slow rate of
temperature rise allows the heat to penetrate the inner expansion
struts. Therefore, the tubular shell and the struts expand slowly until
the total device has been heated to its rated temperature level of 135°
F./194°F. At this point, the silver contact points close which initiates
the alarm. When subjected to a rapid rate temperature rise there
is not as much time for heat to penetrate the inner strut. The rapid
lengthening of the shell allows the struts to come together at a lower
level which compensates for thermal lag inherent in conventional
fixed temperature detectors. When the surrounding air temperatures
goes below the rated temperature level, the shell contracts which
forces contacts to open, thus automatically resetting the detector.
Model 302-EPM, Explosion proof for installation in hazardous locations. Has hexagonal grip bushing with 1/2″ conduit threads for attachment to threaded hub cover of series JL fixture fitting as manufactured by Killark Electric Co., or equal. Must be hand tightened only. For interior use.
General
Each model is a normally open device designed especially for fire
detection and alarm systems. These rate compensation type detectors
are available in either 135° F. or 194° F. ratings. All four basic models
are self restoring, hermetically sealed, shock and corrosion resistant,
and are tamper proof. Refer to NFPA STANDARD 72, STANDARD FOR
AUTOMATIC FIRE DETECTORS for application requirements, testing
and maintenance.
Principal of Operation
All models operate on the principles of a rate compensation detector. The detector consists of a high expansion aluminum tube which
encases two insulation struts with opposing open constant points (see
cut-away view). The high expansion sensing shell and the expansion struts have a different coefficient of expansion. A slow rate of
temperature rise allows the heat to penetrate the inner expansion
struts. Therefore, the tubular shell and the struts expand slowly until
the total device has been heated to its rated temperature level of 135°
F./194°F. At this point, the silver contact points close which initiates
the alarm. When subjected to a rapid rate temperature rise there
is not as much time for heat to penetrate the inner strut. The rapid
lengthening of the shell allows the struts to come together at a lower
level which compensates for thermal lag inherent in conventional
fixed temperature detectors. When the surrounding air temperatures
goes below the rated temperature level, the shell contracts which
forces contacts to open, thus automatically resetting the detector.
Ada masalah dengan produk ini?