Invivo Millennia 3155A, Руководство по обслуживанию

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4-2
Figure 4-1. Power Supply Test Setup
g. Plug the Variable Auto Transformer’s AC line cord into the AC wall outlet, and turn the
Power Switch to the ON position.
h. Turn the AS153 Line Switch to the ON (
I
) position.
i. Turn the Millennia
®
3155MVS/3155A monitor Power Switch on the front panel to the
ON (
I
) position and allow 15 minutes for warmup.
4.3 Power Supply Calibration. Perform the following procedure to verify proper operation of
the monitor power supply.
a. Low Line Verification. Perform Low Line Verification as follows:
(1) Decrease the Variable Auto Transformer voltage setting to 107 VAC ±1.0 VAC
(for 120V models), 197 VAC ±1.0 VAC (for 220V models), or 85VAC ±1.0 VAC
(for 100V models).
(2) Turn ALL the Parameters ON.
(3) Verify proper operation.
b.
High Line Verification.
Perform High Line Verification as follows:
(1) Increase the Variable Auto Transformer voltage setting to 133 VAC ±1.0 VAC (for
120V models), 243 VAC ±1.0 VAC (for 220V models), or 110 VAC ±1.0 VAC
(for 100V models).
(2) Verify that ALL the Parameters are ON.
(3) Verify proper operation.
(4) Return the Variable Auto Transformer to the applicable nominal line voltage
setting.
c.
Low Battery Shut Off Verification.
Perform the following procedure to ensure proper
shut off in a low battery condition.
(1)
Turn the Millennia
®
3155MVS/3155A monitor Power Switch on the front panel
to the OFF (
F
) position.
(2) Turn the AS153 Line Switch to the OFF (
F
) position.
(3) Disconnect the AS153 AC Power Adapter from the Millennia
®
3155MVS/3155A
monitor by unplugging the AC348 cable from the monitor.
(4) Connect a DC Power Supply to the 18-22 VDC INPUT jack on the rear panel of
the monitor (use Pin 8 for +V connection and Pin 9 as Ground).
(5) Connect a DMM to the DC Power Supply and adjust the output to +12 Vdc.
(6) Turn the Millennia
®
3155MVS/3155A monitor Power Switch to the ON (
I
)
position.
(7) Verify proper operation of the Millennia
®
3155MVS/3155A monitor.