TECSYSTEM T119 - PTC Technical Specifications; Allowed PTC Resistance Values

11
T119
Table 1
TEMPERATURE
RESISTANCE 
MEASURED VDC VOLTAGE
From –20 to dNAT-20°K
From 20 to 250
 2,5
From dNAT –5°K
 550
 2,5
From dNAT +5°K
 1330
 2,5
From dNAT +15°K
 4000
 7.5 pulsed
Electric stiffness
2500 Vac
Maximum operating voltage
30
PTC TECHNICAL SPECIFICATIONS
PTC RESISTANCE VALUES ALLOWED FOR CONNECTION TO T119
The resistance value shown in table 1 refers to a single or multiple series of PTCs.
The device operates correctly if the stated resistance values are complied with. If the PTCs, either single or multiple in
series, have resistance values other than the stated, please notify TECSYSTEM Srl.
FUNCTION
RESISTANCE W
NO ALARM
Temperature of the machine below the alarm
thresholds
HIGHER THAN 50 Ω
ALARM
FAN-ALL-TRIP set alarm thresholds reached
HIGHER THAN 1800 Ω
FOC
Sensor diagnostics interrupted
HIGHER THAN 10 KΩ
FCC
Sensor diagnostics short-circuited
LOWER THAN 30 Ω