Remote Spectrum Monitor™ MS27201A User Guide : General Information : Instrument Care and Preventive Maintenance
Instrument Care and Preventive Maintenance
Instrument care and preventive maintenance consist of proper operation in a suitable environment, occasional cleaning of the instrument, and inspecting and cleaning the RF connectors and all accessories before use. Clean the instrument with a soft, lint-free cloth dampened with water or water and a mild cleaning solution.
To avoid damaging the case, do not use solvents or abrasive cleaners.
Ventilation and Cooling
The Remote Spectrum Monitor provides active cooling of the internal components to prevent damage from overheating. The airflow vents on the edges and bottom of the instrument must be kept clear and unobstructed while the instrument is powered on. When using the Remote Spectrum Monitor on a desktop, bench or the instrument can be placed flat on its back to facilitate increased airflow.
Do not operate or store the Remote Spectrum Monitor in extreme environments. Refer to the instrument Technical Data Sheet for the specified operating and storage conditions.
Connector Care
Clean the RF connectors and center pins with a cotton swab dampened with denatured alcohol. Visually inspect the connectors. The fingers of the N(f) and K(f) connectors and the pins of the N(m) and K(m) connectors should be unbroken and uniform in appearance. If you are unsure whether the connectors are undamaged, gauge the connectors to confirm that the dimensions are correct. Visually inspect the test port cable(s). The test port cable should be uniform in appearance and not stretched, kinked, dented, or broken.
To prevent damage to your instrument, do not use pliers or a plain wrench to tighten the Type‑N and Type-K connectors. The recommended torque is 12 lbf · in to 15 lbf · in (1.36 N · m to 1.70 N · m). Inadequate torque settings can affect measurement accuracy. Over-tightening connectors can damage the cable, the connector, the instrument, or all of these items.
Visually inspect connectors for general wear, cleanliness, and for damage such as bent pins or connector rings. Repair or replace damaged connectors immediately. Dirty connectors can limit the accuracy of your measurements. Damaged connectors can harm the instrument. Connection of cables carrying an electrostatic potential, excess power, or excess voltage can damage the connector, the instrument, or both.
Connecting Procedure
1. Carefully align the connectors. The male connector center pin must slip concentrically into the contact fingers of the female connector.
2. To tighten, turn the connector nut, not the connector body. Major damage can occur to the center conductor and to the outer conductor if the connector body is twisted.
3. If you use a torque wrench, initially tighten by hand so that approximately 1/8 turn or 45 degrees of rotation remains for the final tightening with the torque wrench.
4. Relieve any side pressure on the connection (such as from long or heavy cables) in order to assure consistent torque. Use an open‑end wrench to keep the connector body from turning while tightening with the torque wrench. Do not over-torque the connector.
Disconnecting Procedure
1. If a wrench is needed, use an open‑end wrench to keep the connector body from turning while loosening with a second wrench.
2. Complete the disconnection by hand, turning only the connector nut.
3. Pull the connectors straight apart without twisting or bending.
ESD Caution
The Remote Spectrum Monitor, like other high performance instruments, is susceptible to electrostatic discharge (ESD) damage. Coaxial cables and antennas often build up a static charge, which (if allowed to discharge by connecting directly to the instrument without discharging the static charge) may damage the Remote Spectrum Monitor input circuitry. Instrument operators must be aware of the potential for ESD damage and take all necessary precautions.
Operators should exercise practices outlined within industry standards such as JEDEC-625 (EIA-625), MIL-HDBK-263, and MIL-STD-1686, which pertain to ESD and ESDS devices, equipment, and practices. Because these apply to the Remote Spectrum Monitor, it is recommended that any static charges that may be present be dissipated before connecting coaxial cables or antennas to the instrument. This may be as simple as temporarily attaching a short or load device to the cable or antenna prior to attaching to the Remote Spectrum Monitor. It is important to remember that the operator may also carry a static charge that can cause damage. Following the practices outlined in the above standards will ensure a safe environment for both personnel and equipment.
Calibration and Verification
The Remote Spectrum Monitor comes fully calibrated from the factory and there are no field-adjustable components. Anritsu recommends annual calibration and performance verification by local Anritsu service centers.
Contacting Anritsu for Sales and Service
To contact Anritsu, visit the following URL and select the services in your region: