The battery can be replaced without the use of tools. The battery compartment is located on the lower left side of the instrument. Slide the battery door down (towards the bottom of the instrument) to remove the door. Remove the battery pack from the instrument by pulling straight out on the battery lanyard. Replacement is the opposite of removal.
Caution
Use only Anritsu approved batteries, adapters and chargers with these instruments.
MS20xxC VNA Master Battery Compartment Door
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Battery Compartment Door
The battery that is supplied with the VNA Master may need charging before use. The battery can be charged in the VNA Master by using either the AC‑DC Adapter or the 12 Volt DC adapter, or can be charged separately in the optional Dual Battery Charger.
Caution
When using the Automotive 12 VDC Adapter, always verify that the supply is rated for a minimum of 60 Watts at 12 VDC, and that the socket is clear of any dirt or debris. If the adapter plug becomes hot to the touch during operation, discontinue use immediately.
Warning
VNA Masters are supplied with a rechargeable battery that could potentially leak hazardous compounds into the environment. These hazardous compounds present a risk of injury or loss due to exposure. Anritsu Company recommends removing the battery for long-term storage of the instrument and storing the battery in a leak-proof, plastic container. Follow the environmental storage requirements specified in the product data sheet.
ESD Caution
The VNA Master, like other high performance instruments, is susceptible to ESD (electrostatic discharge) damage. Coaxial cables and antennas often build up a static charge, which may damage the VNA Master input circuitry (if allowed to discharge by connecting directly to the VNA Master without previously discharging the static charge). 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 VNA Master, Anritsu Company recommends that any static charges that may be present be dissipated before connecting coaxial cables or antennas to the VNA Master. This may be as simple as temporarily attaching a short or load device to the cable or antenna prior to attaching to the VNA Master. Remember that the operator may also carry a static charge that can cause damage. Following the practices outlined in the above standards helps to ensure a safe environment for both personnel and equipment.
RF Input Warning (MS203xC only)
The VNA Master is a sensitive measuring instrument designed to measure low power levels. Avoid damaging this sensitive circuitry by observing the maximum input levels printed on the instrument connector labeling and specified in the product technical data sheet.
On MS203xC instrument models, typical maximum input at the spectrum analyzer port is +30 dBm (±50 VDC) and could be less if additional features, such as a preamplifier, are in use. Be sure to review the product technical data sheet or Anritsu website for recommended components and accessories that can help you protect your instrument. These include a variety of adapters, attenuators, filters, and RF detection accessories.
