Fema C Series User Manual

Also see for C Series: Quick installation guide

Fema C Series User Manual Manual pdf 8 page image

FEMA ELECTRÓNICA . Series C . C40-D81.12 Measuring thermocouples• Thermocouples acceptedThe instrument accepts direct connection of thermo-couples type K, J, E, N, L, R, S, B, T and C.• Temperature ranges and total errorTemperature ranges and total error for each type of thermocoupleare indicated on ‘Table 10’ below.• Cold junction compensationThe thermocouple cold junction is automatically compensated bythe instrument. The automatic compensation can be disabled fromthe configuration menu.• Resolution and unitsThe instrument resolution when measuring thermocouples is 1º.Reading can be configured in ºC (degrees Celsius) or ºF (degreesFahrenheit).• Sensor break detectionIn case of sensor break, the instrument will show ‘h.ovr’ or ‘h.udr’(see section 1.28) depending on the broken cable.Thermocouple Jumper ‘S’(see section 1.9)Jumper ‘T’(see section 1.9)Range in ºC(in ºF)Connection(terminals)Total error(cold junction included)Thermocouple KE4-5-100 / 1350 ºC(-148 / 2462 ºF)2 (tc +)4 (tc -)<3 ºThermocouple J -100 / 1200 ºC(-148 / 2192 ºF)Thermocouple E -100 / 1000 ºC(-148 / 1832 ºF)Thermocouple N -100 / 1300 ºC(-148 / 2372 ºF)Thermocouple L -100 / 900 ºC(-148 / 1652 ºF)Thermocouple RE J0 / 1768 ºC(32 / 3214 ºF)Thermocouple S 0 / 1768 ºC(32 / 3214 ºF)Thermocouple T -100 / 400 ºC(-148 / 752 ºF)Thermocouple C E 0 / 2300 ºC(32 / 4172 ºF)<5 ºThermocouple B E J 700 / 1820 ºC(1292 / 3308 ºF)Table 10 - Temperature ranges for thermocouplestc +tc -1 2 3 4 5• Compensated cableTo correctly measure a thermocouple signal, always use compensat-ed cable, of the thermocouple used, to connect the instrument andthe thermocouple.• Response timesThe response time to a signal step is 300 mSeconds, independent ofthe signal range selected.• Terminal 5 ‘multifunction’ - External controlTerminal 5 remains configured as ‘EK’ external control function. Seesection 1.9 for a list of available functions.• Start-up, connections and jumpersFor instrument start-up follow the steps listed at section 1.7. Signalconnections are indicated at section 1.5. Location for internal jump-ers is indicated at section 1.9.See below connections for thermocouple :