Emerson Rosemount 975, Справочное руководство

Страница: 28 / 40

Where required, this file will be provided by the manufacturer.
4.4 Set fixed current 4-20 values
4-20mA is factory calibrated with controlled and certified equipment; there is no need for
additional calibration. This process allows rounding of multimeter values to 4mA and
20mA fixed values.
For different equipment used at the customer site over ±0.05mA, the 4-20mA output can
be fixed to match the reading indicated on the customer's multimeter. The reading can be
adjusted within ±0.05mA.
Procedure
1. Select the 4 mA radio button
2. Click
Set fixed current
.
3. Enter multimeter reading.
4. Click the
Apply button.
5. Repeat steps Step 3 and Step 4 until you enter value within 4mA ±0.5.
Important
It is essential to enter the final value and click Apply .
6. Select the
20 mA
radio button.
7. Click Set fixed current .
8. Enter multimeter reading.
9. Click the
Apply button.
10. Repeat steps Step 8 and Step 9 until you enter value within 20mA ±0.5.
Important
It is essential to enter the final value and click Apply .
11. Click the Burn button to save the changes.
Maintenance Reference Manual
June 2021 00809-1500-4975
28 Emerson.com