gefran 850 Installation And Instruction Manual page 276

INPUTS
Sensor type
Thermocouple
(only Main and Aux1)
RTD input
(Pt100 and JPt100)
INGRESSI PRINCIPALE
ED AUSILIARIO
Linear DC input
(Main, Aux1, Aux2)
Sampling time
Digital filter
Rejection to network disturbance
(48-62Hz)
Temperature unit of measure
Reading interval
Insulation
Type
Type
TA
(ammeter) input
Accuracy
Numero
Type
DIGITAL INPUTS
Isolation
80209C_MHW_850-1650-1850_01-2020_ITA_pag. 274
• Thermocouples, RTD (PT100, JPT100), IR pyrometers with type K
output, 4...20mA, 0...20mA, 10V, 5V, 1V, 60mV, potentiometer
• Reading accuracy: ±0.1% of value read
This Gefran controller, when subjected to the necessary calibration
operations in the field, is suitable for use in Nadcap applications
for any class of oven, from 1 to 6, according to specification
AMS2750E, paragraph 3.3.1.
• Types: J, K, R, S, T, C, D, B, E, L, L-GOST, U, G, N,Pt20Rh-
Pt40Rh Custom linearisation available
• Linearisation accuracy: according to standard ITS90 polynomes;
refer to user manual for details
• Cold joint accuracy: < ± 1°C at 25°C ambient temperature
• Cold joint compensation: greater than 40:1, rejection at changes
in room temperature exceeding 25°C
• Diagnostics: Indication of faulty probe and out of scale
• Types: Pt100, JPt100. Custom linearisation available
• Calibration accuracy: < ±0,1% of the value read in °C ± 0,4°C
• Linearisation accuracy: <±0,062°C
• Thermal shift: < (±0.002% of read value/°C, starting from 25°C
room temperature) ± 0.1°C
• Diagnostics: Indication of faulty probe and out of scale
• Tipi : 0...60 mV, 0...20mA, 4...20mA, 0...1V, 0...5V, 0...10V,
0...2.4V high impedance, 0...1.2V high impedance
• Input impedance :
0...60mV, 0...1V, 0...1.2V, 0...2.4V : > 100 MΩ
0...5V, 0...10V : > 400 kΩ
0...20mA, 4...20mA : 50 Ω
• Linearisation: linear or custom
• Calibration accuracy: < 0,1% out of scale
• Thermal shift: <±0.003% full scale/°C, starting from 25°C room
temperature
60 ms or 120 ms, selectable
0,0...20,0 s configurable
Rejection to differential mode: >80 dB
Rejection to common mode: >150 dB
Grade C / F, selectable on the keypad
Type: linear
Scale: -1999...9999, settable decimal point
Functional insulation between main and auxiliary inputs
Isolato tramite trasformatore esterno
Number: 2 max
Maximum load: x / 50 mA AC
Network frequency: 50/60 Hz
Input impedance (Ri): 10 Ω
Isolated via external transformer
Number: 2 max
Max. capacity: x / 50 mA AC
Line frequency: 50/60 Hz
Input impedance (Ri): 10 Ω
±2% f.s. ±1 digit @25 °C
5 max
voltage-free contact, or
NPN 24 V - 4,5 mA, o
PNP 12/24 V - max 3,6 mA
For detail see electrical connections
250 V