User Manual

192
Analog Input Calibration (Thermocouple/Resistance Thermometer Input)
Section 6-5
6-5 Analog Input Calibration (Thermocouple/Resistance
Thermometer Input)
In this example, calibration is shown for a Controller with a Thermocouple/
Resistance Thermometer Multi-input, with an analog input (0 to 50 mV) set as
the input type.
STV
E5CN
DMM
−
+
9
10
STV
E5CN-U
DMM
−
+
10
11
2
1
4
5
Input power supply Input power supply
STV
E5AN/EN
DMM
−
+
1
2
17
18
Input power supply
1,2,3... 1. Connect the power supply.
2. Connect an STV and DMM to the analog input terminals (same as ther-
mocouple inputs), as shown in the figure above.
3. Turn the power ON.
4. Move to the calibration level.
This starts the 30-minute aging timer. This timer provides an approximate
timer for aging. After 30 minutes have elapsed, the No. 2 display changes
to 0. You can advance to the next step in this procedure even if 0 is not
displayed.
5. When the M key is pressed, the status changes as shown to the left.
The No. 2 display at this time shows the currently entered count value in
hexadecimal. Set the STV to 54 mV.
Allow the count value on the No. 2 display to fully stabilize, then press the
D key to temporarily register the calibration settings.
If this count value is outside of the specified range, the No. 2 display will
flash and the count value will not be temporarily registered.
6. When the M key is pressed, the status changes as shown to the left.
Set the STV to
−6 mV.
Allow the count value on the No. 2 display to fully stabilize, then press the
D key to temporarily register the calibration settings.
If this count value is outside of the specified range, the No. 2 display will
flash and the count value will not be temporarily registered.
7. When the M key is pressed, the status changes as shown to the left.
The data to be temporarily registered is not displayed if it is not complete.
Press the U key. The No. 2 display changes to yes. Release the key and
wait two seconds or press the M key. This stores the temporarily regis-
tered calibration data to EEPROM.
To cancel the saving of temporarily registered calibration data to EE-
PROM, press the M key (while no is displayed in the No. 2 display) with-
out pressing the U key.
8. The calibration mode is ended by turning the power OFF.
adj
30
t-54
b9a5
t--6
2988
str
no