gefran 850 Installation And Instruction Manual page 266

INPUTS
Sensor type
Thermocouple Input
MAIN AND AUXILIARY
INPUT
RTD input
(Pt100 and JPt100)
Linear DC input
MAIN AND AUXILIARY
INPUT Sampling time
Digital filter
Rejection to network disturbance
Temperature unit of measure
Reading interval
Insulation
Type
TA
(ammeter)
INPUT
Accuracy
Type
DIGITAL INPUTS
Isolation
Number
(48-62Hz)
80209C_MHW_850-1650-1850_01-2020_ITA_pag. 264
• 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 precision: < ±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
• Tipes : 0...60 mV, 0...20mA, 4...20mA, 0...1V, 0...5V, 0...10V
• Input impedance :
0...60mV, 0...1V : > 100 MΩ
0...5V, 0...10V : > 400 kΩ
0...20mA, 4...20mA : 50 Ω
• Linearisation: linear or custom
• Calibration accuracy: < 0.1% full scale
• Thermal shift: <±0.003% full scale/°C, starting from 25°C room
temperature
60 ms or 120 ms, selectionable
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
Tipe: linear
Scale: -1999...9999,settable decimal point
Functional insulation between main and auxiliary inputs
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
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
3 max