Initial Checks; Introduction; Procedure - Ametek 7270 Instruction Manual

Dsp lock-in amplifier

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2.2 Initial Checks

The following procedure checks the performance of the model 7270. In general, this

procedure should be carried out after inspecting the instrument for obvious shipping

damage.

NOTE: Any damage must be reported to the carrier and to SIGNAL RECOVERY

immediately. In addition the shipping container must be retained for inspection by

the carrier.

Note that this procedure is intended to demonstrate that the instrument has arrived in

good working order, not that it meets specifications. Each instrument receives a

careful and thorough checkout before leaving the factory, and normally, if no

shipping damage has occurred, will perform within the limits of the quoted

specifications. If any problems are encountered in carrying out these checks, contact

SIGNAL RECOVERY or the nearest authorized representative for assistance.

1) Ensure that the model 7270 is set to the line voltage of the power source to be

used, as described in section 2.1.05.

2) With the rear-panel mounted power switch set to 0 (off), plug in the line cord to

an appropriate line power source.

3) Turn the model 7270 power switch to the I (on) position.

4) The front panel display will now briefly display the following:-

5) Wait until the opening display has changed to the Main Display and then press

the key under the bottom right hand corner of the display identified by the legend

MENU on the display. This enters the first of the two main menus,

Main Menu 1, shown below in figure 2-3.

Chapter 2, INSTALLATION AND INITIAL CHECKS

Figure 2-2, Opening Display

2-3

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