5. COMPORTAMIENTO DE LOS EVENTOS DE ITS
5.1 SÍFILIS GESTACIONAL Y CONGENITA
1. Install the probe in the micrometer kit.
2. Connect the test equipment as shown. Use the same connection for 1701/05 and 1701/06 terminal bases. 3. Set the micrometer to 18 mils (or 460 µm).
4. Adjust for mechanical backlash by backing the micrometer out to 20 mils (500 µm). Be careful not to reverse the direction of travel during this operation. 5. Adjust the probe gap to electrical zero by moving the
probe until the multimeter reads -3.00 ± 0.1 Vdc. This setting is “electrical zero” for the 170133, 170150, and 170172 internal Proximitor sensors.
6. Increase the Gap value to the zero position voltage as
Danger
High voltage present. Contact could cause shock, burns, or death. Do not touch exposed wires or terminals.
full-scale range (“0” ± 1% ± 100 mV for the 1701/06 Isolator Terminal Base). If the reading does not meet specification, check your input signal and connections for problems. If you find no problems and the monitor still does not meet specification, go to the section “If a Channel Fails a Verification Test” on page 137.
8. Adjust the micrometer to the full up scale Gap value. Verify that the Direct reading is full scale ± 8 % of the full range (± 8 % ± 100 mV for the 1701/06 Isolator Terminal Base). If the reading does not meet specification, check your input signal and connections for problems. If you find no problems and the monitor still does not meet specification, go to the section “If a Channel Fails a Verification Test” on page 137.
If the upscale direction is toward the probe:
From the zero position Gap value, adjust the micrometer to decrease the probe gap to just over the full up scale value then bring the Gap back to the full up scale value.
Example
Meter Range = 25 - 0 - 25 mil
From the zero position gap adjust the micrometer to decrease the gap by 27 mils. Now reverse rotation direction and bring the gap back to 25 mils. Read the monitor’s Direct value.
If the upscale direction is away from the probe:
From the zero position Gap value, adjust the micrometer to increase the probe gap to just over the full up scale value then bring the Gap back to the full up scale value.
Example
Meter Range = 25 - 0 - 25 mil
From the zero position gap adjust the micrometer to increase the gap by 27 mils. Now reverse rotation direction and bring the gap back to 25 mils. Read the monitor’s Direct value.
9. Adjust the micrometer to the full bottom scale gap. Verify that the Direct reading is full bottom scale ± 8 % of
Application Advisory
The actual transducer average scale factor should be within ± 5% of the scale factor loaded in the I/O data table for the monitor and channel. The zero position gap is the gap that produces the zero position voltage input that will cause the Direct Thrust Position reading to be zero. Use the zero position voltage that is loaded in the monitors I/O data table.
Terminal Base). If the reading does not meet
specification, check your input signal and connections for problems. If you find no problems and the monitor still does not meet specification, go to the section “If a Channel Fails a Verification Test” on page 137.
If the upscale direction is toward the probe:
From the full up scale gap (from step 8) adjust the micrometer to increase the probe Gap to the full bottom scale value.
Example
Meter Range = 25 - 0 - 25 mil
From the full up scale gap adjust the micrometer to increase the gap by 50 mils. Read the monitor’s Direct value.
If the upscale direction is away from the probe: From the full up scale gap (from step 8) adjust the
micrometer to decrease the probe Gap to the full bottom scale value.
Example
Meter Range = 25 - 0 - 25 mil
From the full up scale gap adjust the micrometer to decrease the gap by 50 mils. Read the monitor’s Direct value.
10. Adjust the micrometer back to the zero position gap. Steps 11 through 17 verify Direct alarms
11. Verify that the channel is not in alarm by observing the alarm status on the HMI or by verifying that the monitor LED is a steady green. (Note that both channels must be OK for the LED to be a steady green.)
12. Adjust the micrometer so that the probe Gap value just exceeds the Alert/A1 Over setpoint level. After the
appropriate alarm time delay has expired, verify that the
Application Advisory
If your controller is programmed for latching
exceeds the Danger/A2 Over setpoint level. After the appropriate alarm time delay has expired, verify that the HMI indicates Danger.
14. Adjust the micrometer back to the zero position gap. 15. Verify the channel is not in alarm by observing the alarm
status on the HMI or by verifying that the monitor LED is a steady green. (Note that both channels must be OK for the LED to be a steady green.)
16. Adjust the micrometer so the probe Gap value just exceeds the Alert/A1 Under setpoint level. After the appropriate alarm time delay has expired, verify that the HMI indicates Alert or verify that the LED indication is correct. (Both channels must be OK for the LED to indicate alarms.)
17. Adjust the micrometer so the probe Gap value just exceeds the Danger/A2 Under setpoint level. After the appropriate alarm time delay has expired, verify that the HMI indicates Danger.
Step 18 verifies the Gap value
18. For the 170133 or 170172 internal Proximitor Sensors, use the micrometer to adjust the gap so that the multimeter reads -18.00 V. Verify that the gap value is - 18.000 V ± 20 mV (-18.000 V ± 120 mV for the 1701/06 Isolator Terminal Base). For the 170150 internal
Proximitor Sensor, use the micrometer to adjust the gap so that the multimeter reads -14.00 V. Verify that the gap value is -14.000 V ± 20 mV (-14.000 V ± 120 mV for the 1701/06 Isolator Terminal Base). If the reading does not meet specification, check your input signal and
connections for problems. If you find no problems and the monitor still does not meet specification, go to the section “If a Channel Fails a Verification Test” on page 137.
19. To test the OK Limits adjust the micrometer to the zero position gap. Verify that the channel status is OK. Gradually increase the Gap value over the upper OK limit. Verify that the HMI reports Not OK and the monitor LED is flashing red. (Note the other channel must be OK or you cannot use the LED as an indicator.) Adjust probe gap back to the zero position gap and verify that the channel status is OK. Decrease the probe gap below the lower OK limit and verify that the channel status is Not OK.
20. Disconnect the test equipment and remove the probe from the micrometer kit. After the probe is installed in the machine, verify that the channel status returns to the OK state.