Panametrics Sentinel LCT, Руководство пользователя

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Sentinel LNG User’s Manual 55
Chapter 3. General Programming
3.9.5 RTD (Additional Option)
If an option card is installed, an RTD Input may be available to the user, depending on the option card ordered.
1. Select the appropriate Slot for the Option Card.
2. Select the Temp(RTD) option
3. Enter in a Value for the Label if you want it changed
4. Select Mode and choose Off to turn off the input, or choose Temperature and select the input Temperature units.
5. Select CAL.
a.
Make sure the RTD is connected to the terminal board correctly, according to Figure 28 on page 35.
b. Panametrics Sensing's calibration process involves using a temperature bath and an iRTD (reference).
c. The iRTD is connected to iRTD Win Software to read the values.
d. The Meter is set up to display 1C:RTD.
e. Under IO/Slot 1/1C:Temp(RTD)/Mode choose temperature and enter in the right units.
f. A 2 to 5 point calibration is allowed with Sentinel LNG .
Cal points must be entered with the lowest temperature starting at setpoint #1, and in increasing order to the
highest setpoint.
Cal points must be performed over the full range to be measured. Temperatures that are out of the calibrated
range (not on or between the highest and lowest setpoints) will not have calibration information applied to
them
and will not be corrected. "Falling off of the cal range," or increasing the temperature beyond the last setpoint
could cause data to be discontinuous.
Empty locations in the calibration table should be filled with the value '0'.
g. The Setpoint is the actual temperature that you are trying to read.
h. The Offset is the temperature the meter is reading from the probe minus the reference reading.
i. Run all points with the values set to 0, and then fill them in when all cal points are complete.
6. Select Reset Table if you want to return all Calibration Entries back to 0.
3.10 Display
1. From the main menu, use the arrow keys to scroll to DISP. The screen displays four options: Views, Contrast,
Backlight, and Mode. Use the arrow keys to select an option to be configured.
2. To set up display Views, select it, and press [ENT]. 1 View and 2 Views appear as options.
3. Move through the categories and set up each view as desired. Press [ESC] to return to the DISP menu.
4. To change the display Contrast, select it, and press [ENT]. Using the arrow keys, change the percentage digits as
desired, and press [ENT]. The screen returns to the DISP menu.
5. To change the display Backlight, select it, and press [ENT]. Using the arrow keys, change the percentage digits as
desired, and press [ENT]. The screen returns to the DISP menu.
6. To change the display Mode, select it, and press [ENT]. Select Normal or Reverse and press [ENT]. The screen
returns to the DISP menu.
3.11 Calibration
1. Connect the Analog Output to an ammeter.
2. From the main menu, use the arrow keys to scroll to CAL. The screen displays one option: 4-20 Loop. Press [ENT]
and four categories appear: Base Trim, Span Trim, Percent and Mode.
3. Select Mode, press [ENT], and select Test(Trim).
4. Set the percentage to 0% and press [ENT].
5. Select Base Trim, press [ENT], and using the arrow keys, enter what the ammeter is reading.
6. Set the percentage to 100% and press [ENT].