Bacharach PCA2 Specifications download pdf (Page 14)

Instruction 24-94481-8

Introduction

1.5.2 T-AIR (Primary Air Thermocouple)

If thermocouple P/N 104-1797 (10 feet long) or Utility Wand P/N 104-1799

(12 inch ridged probe with handle and 5 foot coiled cable) is to be used

to measure the burner’s primary air temperature, then connect either of

these thermocouples to the analyzer’s T-AIR connector.

1.5.3 POWER (AC Adapter)

The AC power adapter P/N 24-1404 can be used as an external power sup-

ply, which will run the analyzer on a continuous basis.

When using rechargeable NiMH batteries, the AC power adapter can also

be used to charge the batteries while inside the analyzer. The analyzer’s

rapid-charger circuit, however, must first be turned ON per Section 3.16.

The rapid charger will charge a set of depleted batteries in approximately

2 - 3 hours.

When disposable alkaline batteries are used, the analyzer’s battery char-

ger circuit must be OFF to prevent the batteries from overheating. As a

precaution, the charger circuit is automatically toggled back to its OFF

state when the analyzer is turned OFF.

1.5.4 ∆P (Differential Pressure)

Draft is measured by connecting the probe’s draft hose to the +∆P fitting,

while leaving the –∆P fitting open to the atmosphere.

In addition to measuring draft, the “+” and “–” ∆P fittings can also be used

to measure the differential pressure between two areas by first connecting

a hose P/N 24-1103 to the –∆P fitting, and then inserting the open end of

this hose into the area being used as the reference pressure. The analyzer’s

probe is then inserted into the area where differential pressure is to be

measured. Refer to Section 4.6.

1.5.5 USB (Computer Interface)

Data that has been stored in the analyzer’s memory can be downloaded to

a personal computer by connecting USB data cable P/N 104-4032 between

the USB ports of the computer and analyzer. Refer to Section 4.14.2.

1.5.6 IrDA (Printer Interface)

Data that has been stored in the analyzer’s memory can be printed on a

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Bacharach PCA2 Specifications Page 14