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EXCEL 500/600 INSTALLATION INSTRUCTIONS
ground
Vi
10 Vdc
Immersion temperature sensor VF 100
Air duct temperature sensor LF 100
25K ohm
Wind sensor:
Wind sensor WS21.
Further connections:
200K ohm
Temperature sensor terminal TF26
Table 15. Accuracy of analog input sensors
Fig. 75. Analog input / low-impedance sensors
Pull-Up Resistor Handling when Using Analog Inputs as
Digital Inputs (O.S. 2.03.xx)
When the input is identified as a DI point in CARE (DI
subtype AI), the internal pull-up resistor is enabled.
10 Vdc
25K ohm
200K ohm
Fig. 76. Analog inputs identified as DI point (O.S. 2.03.xx)
Pull-Up Resistor Handling when Using Analog Inputs as
Digital Inputs (O.S. 2.04.00 or higher)
When the input is identified as a DI point in CARE (DI subtype
AI), the internal pull-up resistor is disabled.
10 Vdc
Range
Measurement error
(without sensor tolerance)
Pt1000 NTC (20k ohms)
-58 to –4 °F (-50 to –20 °C) ≤ 1.2 K ≤ 5.0 K
-4 to 32 °F (-20 to 0 °C)
≤ 0.7 K ≤ 1.0 K
32 to 86 °F (0 to 30 °C)
≤ 0.5 K ≤ 0.3 K
86 to 158 °F (30 to 70 °C) ≤ 0.7 K ≤ 0.5 K
158 to 212 °F (70 to 100 °C)
≤ 1.2 K ≤ 1.0 K
212 to 266 °F (100 to 130 °C)
≤ 1.2 K ≤ 3.0 K
266 to 302 °F (130 to 150 °C)
≤ 1.2 K ≤ 5.5 K
ground
Vi
ground
Vi
200K ohm
Fig. 77. Analog inputs identified as DI point (O.S. 2.04.00
or higher)
Sensors and Transducers
Passive sensors (NTC 20k ohms)
Room temperature sensor RF20
Inlet temperature sensor VF20A
External temperature sensor AF20
Active sensors (0 to 10 V):
Duct Humidity Sensor H7011A1000
Duct Humidity Sensor H7012A1009
Active sensors (0 (4) to 20 mA):
35 EN1R-1047GE51 R0902