Baker Hughes Panametrics PanaFlow LC, Руководство пользователя

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Figure 57: Setting up analog output
3.5.2c Calibrating analog output
To calibrate Analog Output, use steps as in section “Log-in and Primary Pages” to navigate to the Input/Output settings page.
You may use a multimeter or DCS/SCADA to calibrate the Analog Output. Regardless of whether multimeter or DCS/SCADA is
used, the steps below remain the same. For better readability, the steps below only indicate multimeter and does not repeat
multimeter or DCS/SCADA.
1. Turn ON the multimeter (if used), and set it to measure Current (mA) DC. Connect test lead from positive side (Aout+) of
the Main Analog Output to the positive terminal of multimeter, and the negative lead to the negative terminal (Aout-).
2. Then in Meter Menu highlight [Analog Output (std)] and press [ENTER] . Then highlight [4-20mA] and press [ENTER] .
3. Scroll down and select [Calibrate] option.
4. Select [Calibrate 4mA] and check if the reading on the multimeter reads 4.00mA ± 0.01mA. If the value on the multimeter
is not 4.00mA ± 0.01mA, input the value read on the multimeter into the Calibrate 4mA value and press [ENTER] . Check
multimeter again verify the Current reads 4.00mA within ±0.01mA.
5. Select [Calibrate 20mA] and check if the reading on the multimeter reads 20.00mA ± 0.01mA. If the value on the
multimeter is not 20.00mA ± 0.01mA, input the value read on the multimeter into the Calibrate 20mA value and press
[ENTER] . Check multimeter again verify the Current reads 20.00mA within ±0.01mA.
6. Select [Percentage of Scale] and adjust the scale to 0.00% and press [ENTER] , then verify the reading on the multimeter
is 4.00mA within ±0.01mA. Then adjust the scale to 50.00% and press [ENTER] , then verify the reading on the multimeter is
12.00mA within ±0.01mA. Then adjust the scale to 100.00% and press [ENTER] , then verify the reading on the multimeter is
20.00mA within ±0.01mA.
7. If Steps 4, 5, and 6 were successfully completed and verified, the Analog output is successfully calibrated.
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