Current Calibration - Thermo Scientific SmartView SV100A User Manual

Calibration
Thermo Fisher Scientific
Note The remaining steps use the 50 mV range; however, these steps are
the same regardless of the range you select. ▲
7. A known good -50 and +50 mV (or the range you selected) must be
supplied to the recorder's calibration input.
8. Press 50 mV in the Calibrate section. The Calibrate 50 mV screen
appears and displays the readings for counts and mV.
9. Set the precision voltage source to -50.000 mV, and press Accept.
10. Set the precision voltage source to +50.000 mV, and press Accept.
11. Set the precision voltage source for a zero input, and press Accept.
The recorder returns to the first ADC Calibration screen. You are ready to
calibrate the next range.
Note The mV reading in the text window may not show the correct value
until range calibration is completed and you return to the calibration
screen. ▲
Current
The ADC current source is used for resistance measurements and needs
calibration only if you need to make resistive measurements such as RTDs.
Each ADC board (inputs 1–6, 7–12, and 13–18) must be calibrated
separately.
A resistance of 400 ohms ±0.05% must be connected across the + and –
terminals of a free input on each board. The current source return path C
(common) must be connected to the – input terminal. The recorder applies
an excitation current of approximately 2 mA through the resistance to
calibrate current.
Before calibrating currents, the 1 V range (at a minimum) must be
calibrated.
1. From the Program menu, select Measurement > Calibrate ADC.
2. Press the Current button on the bottom left of the screen.
3. Press Accept, and repeat this procedure for each ADC board present.
Calibration

Current Calibration

SV100A/SV10AC User Guide 8-3