Yokogawa YTA320 - Manual (Page 35)

<7. General Specifications>
7-
IM 01C50B01-01E
7. General Specifications
7.1 Standard Specifications
For the specifications of Fieldbus communication
type marked with (◊), refer to IM 01C50T02-01E.
Input signal:
Input points: YTA110; 1, YTA310; 1, YTA320; 2
Thermocouple (T/C):
J, K, E, T, R, S, B, N (JIS/IEC584), L, U
(DIN43710), W3, W5 (ASTM988)
Thermometer resistor (RTD):
Pt100, Pt200, Pt500 (IEC751), JPt100(JIS),
Cu, Ni120 2/3/4-wire
DC voltage: mV
Resistance: Resistor 2/3-wire
Input signal source resistance:
1kΩ or lower (at thermocouple, DC voltage
input)
Input lead wire resistance:
10Ω/1-core or less (with thermometer resistor,
resistance input)
Output(◊):
Two wire 4 to 20 mA DC
Output range: 3.68 mA to 20.8 mA
Measuring range:
Refer to Table 7.1.
Power supply voltage(◊):
For general use type;
10.5 to 42 VDC
With lightning protection (Optional code A);
10.5 to 32 VDC
For intrinsically safe, Type n, non-incendive or
non-sparking type;
10.5 to 30 VDC
Communication line conditions(◊):
Power supply voltage; 16.4 to 42 VDC
Load resistance; 250 to 600Ω (including cable
resistance)
For relation between power supply voltage and
load resistance, refer to Figure 5.3.
Maximum line length; 2 km when CEV cable is
used.
Load resistance; 0.22 μF or less
Load inductance; 3.3 mH or less
Spacing to power line;
Output signal line; 15 cm or longer (avoid
parallel wiring)
Input signal line; 100 cm or longer (avoid
parallel wiring)
Input impedance of receiver connected to
receiver resistance; 10 kΩ or higher (at 2.4 kHz)
Accuracy(◊):
YTA110;
A/C conversion accuracy + D/A conversion
accuracy (Refer to Table 7.1) or ±0.1%,
whichever is greater. For thermocouple input,
above plus reference junction compensation
accuracy.
YTA310, YTA320;
A/C conversion accuracy + D/A conversion
accuracy (Refer to Table 7.1) For
thermocouple input, above plus reference
junction compensation accuracy.
Reference junction compensation accuracy:
±0.5°C (±0.9°F)
Ambient temperature:
–40 to 85°C (–40 to 185°F) . . . .general type
–30 to 80°C (–1 to 176°F) . . . . .with Integral
indicator
Ambient temperature effect per 10°C change(◊):
YTA110;
±0.1% or ± (Temperature Coefficient/span),
whichever is greater (refer to Table 7.2)
YTA310, YTA320;
A/D conversion temperature factor + D/A
conversion temperature factor
(refer to Table 7.3)
Stability
RTD:
±0.1% of reading or ±0.1°C per 2 years,
whichever is greater at 23±2°C.
T/C:
±0.1% of reading or ±0.1°C per year,
whichever is greater at 23±2°C.
5 Year Stability
RTD:
±0.2% of reading or ±0.2°C,
whichever is greater at 23±2°C.
T/C:
±0.4% of reading or ±0.4°C,
whichever is greater at 23±2°C.
Ambient humidity:
5 to 100%RH at 40°C (104°F)