Omega Engineering OMB-NETSCAN 1500, User Manual

Page: 114 / 256

6-16 Calibration NetScan User’s Manual
2. Apply calibration voltage from the precision calibrator to the first channel of each CSN14/HV/S card
(see following table), and verify with a digital multimeter. Requirements for both devices are specified
in Required Equipment.
Volts DC Slot # 1 Slot # 2 Slot # 3 Slot # 4 Slot # 5 Slot # 6 Slot # 7 Slot # 8
-2.5 V G1,20X G17,20 X G33,20X G49,20X G65,20X G81,20X G97,20X G113,20X
+2.5 V G1,20X G17,20X G33,20X G49,20X G65,20X G81,20X G97,20X G113,20X
-25.0 V G1,21X G17,21X G33,21X G49,21X G65,21X G81,21X G97,21X G113,21X
+25.0 V G1,21X G17,21X G33,21X G49,21X G65,21X G81,21X G97,21X G113,21X
-250.0 V G1,22X G17,22X G33,22X G49,22X G65,22X G81,22X G97,22X G113,22X
+250.0 V G1,22X G17,22X G33,22X G49,22X G65,22X G81,22X G97,22X G113,22X
Note: In the slot columns, the digit after the G is the channel number and the number immediately preceding
the X assigns the voltage value, e.g., G1,20X means “Calibrate Gain for channel 1, ±2.5 V.”
3. After each calibration type
U2X
and check for a return of
U128
to confirm no errors.
Response codes and meanings applicable to calibration are as follows:
Response to U2X Indication for Calibration Mode
U128 No error
U129 Read Failure (EEPROM Error)
U130 Write Failure (EEPROM Error)
U132 Chksum Err (EEPROM Error)
U136 Cal Err (offset, gain, or temperature sensor out of range)
U144 Invalid password
U160 Invalid command
4. After completing the gain calibration of all cards, type
EX
to end the calibration mode.
5. Type
U2X
to confirm calibration mode is disabled. A return of
U000
confirms this.
Note: You can view the calibration constants by typing an entry similar to the following:
C#1X QC?
…for slot #1
You can monitor the calibration voltage by typing an entry similar to the following:
*B
…to clear the buffer
C1,1X
…to addresses the channel, this example is for slot #1, channel 1
T1,1,0,0X;@X
… to trigger the acquisition (Trigger LED flashes); );
@X
starts acquisition
U13X
every entry of U13X results in an updated value of voltage in counts
Note that
@X
can be used to start or stop the acquisition.