Spectrex Quasar 900 Open-Path Gas Detection System Bedienungsanleitung PDF herunterladen (Seite 51)

TM 888200 Rev (I), January 2014

Safety Precautions 39

6.4 Safety Precautions

After powering up, the Detector requires minimal attention in order to

function properly, but the following should be noted:

1 Follow the instructions in the Manual; refer to the drawings and

specifications issued by the manufacturer.

2 Do not open the detector/source housing while power is supplied.

3 Disconnect external devices, such as automatic extinguishing systems

before carrying out any maintenance task warranty.

6.5 Signal Verification

The signal verification can be done through Host software supplied by

Spectrex. Refer to Manual TM 888050 or by Handheld unit refer to Manual

TM 799060.

6.5.1 Signal Values Limitation

Table 13 describes the maintenance data channels limitation limits.

Table 13: Maintenance Channels Limit Values

Channel

Installation Distance

Maintenance

Min

Med

Max

Reference

1V Gain1

1V Gain2

1V Gain4

The minimum signal

allowed is 2V at Gain9

Signal 1

1V Gain1

1V Gain2

1V Gain4

The minimum signal

allowed is 2V at Gain9

Ratio 0

0.6-1.4

0.5-3

NQRat 0

0.95 – 1.05

Must be 0.95 – 1.05

LEL

0 LEL x m

Temp.

Up to 25° C beyond room temp.

Up to 25° C beyond

room temp.

Voltage

32VDC > V > 18VDC

Note: The installation information refers to the installation distance.

 Min: The minimum distance as defined on the model no.

 Med: Half of the maximum distance as defined on the model no.

 Max: The maximum distance defined on the model no.

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