7 TECHNICAL SPECIFICATIONS
Common
characteristics
A/D converter with resolution of 50,000 points
Update measurement time: 0.2 seconds
Sampling time: 0.5 seconds
Input bias: -60…+60 digit
Input filter with enable/disable: 1…30 seconds
Accuracy
0.25% ±1 digits for temperature sensors
0.1% ±1 digits (for mV and mA)
Between 100…240Vac
the error is minimal
Resistance
thermometer
(for ∆T: R1+R2
must be <320Ω)
Pt100Ω at 0°C
(IEC 751)
°C/°F selectable
2 or 3 wires connection
Burnout (with any combi-
nation)
Wire Res: 20Ωmax. (3 wires)
Sensitivity: 0.35°C/10° E.
T.
<0.35°C/10Ω Wire Res.
Thermocouple
L, J, T, K, S
(IEC 584)
Rj >10MΩ
°C/°F selectable
Internal cold junction
compensation con NTC
Error 1°C/20°C ±0.5°C
Burnout
Line: 150Ω max.
Input drift:
<2µV/°C.Env. Temp
<5µV/10Ω Wire Res.
DC input (current)
4…20mA,0...20mA
with external shunt 2.5Ω
Rj >10MΩ
Engineering units
Conf. decimal point position
Init. Sc -999…9999
Full Sc. -999…9999
(min. range of 100 digits)
Input drift:
<0.1%/20°C Env. Temp.
DC input (voltage)
10…50mV, 0...50mV
Rj >10MΩ
Total configurability
(see par. 3.2 page 18
par. 4.6 page 35)
PV Input
(see page11,12 and
page 18)
Description
From keypad or serial communication the user selects:
- the type of input - the associated functions and the corresponding outputs
- the type of control algorithm - the type of output and the safe conditions
- the type and functionality of the alarms - the values of all the control parameters.
Features
(at 25°C environmental temp.)
46
7 - Technical specification
M4UK.ed6 20-05-2005 11:43 Pagina 46
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