Honeywell UDC2500 Manuale Utente
Input Calibration
4/07
UDC2500 Universal Digital Controller Product Manual
137
Calibration Steps
Use the following steps when calibrating an input.
Step
Action
1
Find the minimum and maximum range values for your PV input range from Table 5-1.
2
Disconnect the field wiring and find out what equipment you will need to calibrate.
3
Wire the calibrating device to your controller according to the set up wiring instructions
for your particular input (Subsection 5.4 or 5.6).
for your particular input (Subsection 5.4 or 5.6).
4
5.2 Minimum and Maximum Range Values
Select the Range Values
Calibrate the controller for the minimum (0 %) and maximum (100 %) range values of
your particular input type. Two input controllers will need to have each input calibrated
separately.
your particular input type. Two input controllers will need to have each input calibrated
separately.
Select the Voltage, Current or Resistance equivalents for 0 % and 100 % range values
from Table 5-1 and Table 5-2. Use these values when calibrating your controller.
from Table 5-1 and Table 5-2. Use these values when calibrating your controller.
Table 5-1 Voltage, Milliamp and Resistance Equivalents for Input 1 Range Values
PV Input Range
Range Values
Sensor Type
°F
°C
0 %
100 %
Thermocouples
(per ITS-90)
(per ITS-90)
B
0 to 3300
–18 to 1816
–0.100 mV
13.769 mV
E
–454 to 1832
–270 to 1000
–9.835 mV
76.373 mV
E (low)
–200 to 1100
–129 to 593
–6.472 mV
44.455 mV
J
0 to 1600
–18 to 871
–0.886 mV
50.060 mV
J (med)
20 to 900
–7 to 482
–0.334 mV
26.400 mV
J (low)
20 to 550
–7 to 288
–0.334 mV
15.650 mV
K
0 to 2400
–18 to 1816
–0.692 mV
52.952 mV
K (med)
–20 to 1200
–29 to 649
–1.114 mV
26.978 mV
K (low)
–20 to 750
–29 to 399
–1.114 mV
16.350 mV
NiMo-NiCo (NM90)
32 to 2500
0 to 1371
0.000 mV
71.773 mV
NM90 (low)
32 to 1260
0 to 682
0.000 mV
31.825 mV
Nicrosil-Nisil (Nic)
0 to 2372
–18 to 1300
–0.461 mV
47.513 mV
Nic (low)
0 to 1472
–18 to 800
-0.461 mV
28.455 mV
R
0 to 3100
–18 to 1704
–0.090 mV
20.281 mV