Anritsu ML2437A - Chapter 2: Installation; Initial Inspection; Sensor Handling; Power Requirements

ML2437A/38A OM/PM PN: 10585-00001 Rev. P 2-1
Chapter 2 — Installation
2-1 Initial Inspection
Inspect the shipping container for damage. If the container or cushioning material is
damaged, retain until the contents of the shipment have been checked against the packing
list and the instrument has been checked for mechanical and electrical operation. If the power
meter is damaged mechanically, notify your local sales representative or Anritsu Customer
Service Center. If either the shipping container is damaged or the cushioning material shows
signs of stress, notify the carrier as well as Anritsu. Retain the shipping materials for the
carrier's inspection.
2-2 Sensor Handling
The sensors are enclosed in a polycarbonate case to help prevent damage. The sensor
connectors, however, are exposed and are a critical part of the microwave instrument. Refer
to the MA24xxA Series Power Sensor manual (10585-00004) for detailed information on
proper connector care.
2-3 Power Requirements
The ML243xA Power Meter can be operated from either AC line power, external DC power, or
from the optional internal battery. The ML243xA Power Meter is intended as an Installation
(Overvoltage) Category II, Insulation Category I device. At power-on, the power meter will
perform a brief power-on self test (POST). If a POST error occurs, information and available
options are displayed on the screen. If the POST is successful, the instrument loads the last
used configuration, unless Secure mode has been selected.
AC Line Power
The ML243xA Power Meter can operate on AC input power of 85-264 V, 47-440 Hz, 40 VA
maximum. The power meter automatically configures itself for the voltage applied. The AC
line input is protected by an internal fuse.
DC Power
The ML243xA Power Meter can also operate from a nominal external 12-24 VDC input in the
absence of AC line power. DC line power is protected by a fuse mounted inside the unit, on the
main board. A grounding terminal is provided on the rear panel to ground the unit during
operation from a DC supply.