Back Light (Idle) Current Test; Valve/Pump Mode Current Test; Interface Test; Temperature Option Requirements - Welch Allyn Spot Vital Signs Service Manual

Service Manual

Back light (Idle) current test

The Back Light Current Test is defined as the amount of current drawn through the
battery. All LCD segments and the back light are turned on while the SpO
off. The limit is 400 mA maximum.

Valve/pump mode current test

The Valve/Pump Mode Current Test is defined as the amount of current that is drawn
through the battery terminals; Spot Vital Signs is in the Blank Mode while the valve and
pump are actuated to on. The limit is 700 mA maximum.

Interface test

When given the proper commands, the Display Window will turn on or off all segments
and turn on or off the back light. When given the proper command, the buzzer sounds to
verify operation. The user determines the pass/fail criteria.

Temperature option requirements

Accuracy test

Verify the accuracy of the temperature module is within ±0.2° F for readings with a nomal
temperature of 97.3° F (36.3° C) using a Cal Key (5200-25). Verify Spot Vital Signs can read
a temperature of 96.4° F (35.8° C) and 106° F (41.1° C) within ±0.3° F/±0.2° C using a
Welch Allyn 9600 Plus Calibrator.
If using a water bath to take temperatures, verify the bath themperature is between 84° F
and 106°F/28.8°C and 41.1°C. The reading must agree within (±1.0° F/0.8° C) measuring
against a temperature stated that is accurate to within (±1.0° F/0.8° C).

Temperature probe test

Spot Vital Signs displays "188.8" and then "ORL" after you remove the oral probe from
the probe housing.
SpO option requirements
2
These tests are only valid on Spot Vital Signs models with the Masimo or Nellcor SpO
option.
SpO functional test
2
See "Masimo"
SpO mode current test
2
The SpO
Current, that is drawn through the battery terminals, placing Spot Vital Signs in the Blank
or "Nellcor" starting on
Mode Current Test is defined as the amount of current, less the Blank Mode
2
page 24 for the functional test.
Repair test specifications 75
mode is turned
2
2