MSA FiveStar Instruction Manual download pdf (Page 43)

WARNING

Certain gases may react with the Aspirator Assembly; this

may cause lower than actual readings. If these gases are

suspected, re-verify readings in the diffusion mode by removing

the Aspirator Assembly or by using Pump Module (P/N 710790).

Attaching the Aspirator Assembly

1. Remove the two sensor lid screws located closest to the

display face.

• Store screws inside the Aspirator Assembly, on the white

manifold containing two recesses on each edge to

securely hold the screws.

2. Once screws are removed, align the Aspirator Assembly tabs

to sit inside the main body recesses by tilting the Aspirator

Assembly gently onto the back of the FiveStar unit.

• Ensure tabs engage notches; do not force connection as

damage can occur.

3. Gently rotate the Aspirator Assembly until the

manifold contacts the FiveStar unit sensor cover.

• Thumb screws align with holes left by the screws removed

in step 1.

4. Finger-tighten the screws to secure the Aspirator Assembly to

the FiveStar unit.

• Do not use tools or force the screws as damage can occur.

5. Attach sample lines (up to 25 feet long) and attach the probe.

Operation and Use

1. Block sample line or probe inlet and squeeze the aspirator bulb.

• With long sample line lengths (up to 25 feet), the bulb may

slowly inflate as a vacuum is drawn in the sample line;

squeeze the bulb one more time if necessary.

• The bulb should now remain deflated; if bulb inflates,

check for leaks and tighten as necessary.

2. Place the end of the probe at the point the sample is to be

taken.

3. Squeeze the bulb 10 times, allowing it to fully inflate

between squeezes.

• Note the readings.

Instruction Manual Chapter 2, Using the FiveStar Alarm

FiveStar Alarm 2-27

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MSA FiveStar Instruction Manual Page 43