Emerson FLOBOSS S600 Instruction Manual page 43

FloBoss S600 Instruction Manual
4.1.9 PRT/RTD Inputs
There are three Platinum Resistance Thermometer (PRT)/Resistance Temperature Detector (RTD) inputs.
The PRT/RTD inputs are suitable for Class A, 4-wire PRT devices that conform to the BS EN 60751:1996
standard. The temperature measurement range is -100 to +200°C (-148 to +392°F). Two styles of
PRT/RTD probes are supported:
♦ DIN (coefficient of 0.00385 ohm/ohms degrees Celsius).
♦ AMERICAN (coefficient of 0.003926 ohm/ohms degrees Celsius).
The "DIN" 43760 selection is typical in Europe and common in the United States, while the
"AMERICAN" Standard selection coefficient (alpha) is still common for circumstances where a slightly
more pure Platinum is used to effect a higher absolute accuracy. The style of PRT/RTD must be
configured through Config 600 software.
The PRT/RTD input pin connections are shown in Table 4-12.
Rev Sep/04
Table 4-11. Frequency Input Pin Connections for SKT-B
Pin
9
27
10
28
11
29
Figure 4-18. PRT/RTD Input Schematic
Function
FREQUENCY-CH1+
FREQUENCY-CH1-
FREQUENCY-CH2+
FREQUENCY-CH2-
FREQUENCY-CH3+
FREQUENCY-CH3-
I/O 4-13