Bacharach PUR-CHEK PRO Manuál s instrukcemi stáhnout pdf (Strana 13)

Operation and Maintenance Instruction Manual

P/N 2100-9001 Rev 3 9

instrument. Figure 4-2 B shows a sample progress screen that is displayed as the Air Calibration is

occurring. Calibration will take approximately 130 seconds.



NOTE: In the unlikely event an ‘Air Calibration Unstable’ message is displayed as shown in

(Figure 4-2 C) verify you are in a ventilate area and there is no gas flowing near the air intake.

Once you have verified both parameters, press ‘RETRY’ to complete another calibration.

(A) (B) (C)

Figure 4-2. Sample Screens Showing Initiation and Progress of Calibration Testing

When the unit has completed a successful Air Calibration, the analyzer is then ready for gas testing. The

unit will display the screen shown in Figure 4-3 A. Determine if you are Vapor Sampling or Liquid

Sampling and make sure the proper hose assembly is connected to complete your required form of

testing. Section 4.4 Vapor Sampling and section 4.5 Liquid Sampling outline proper procedure for both

forms of testing.

Connect the hose to the tank or system, open the valve if connecting to a tank, and then press ‘TEST’.

The Pur•Chek™ Pro will display the screen shown in Figure 4-3 B. Before the test is completed the

screen in Figure 4-3 C will appear to indicate the test is nearly complete

(A) (B) (C)

Figure 4-3. Sample Gas Testing Screens

4.4. Vapor Sampling

Vapor sampling is the most common process used for identifying refrigerants using the Pur•Chek™ Pro.

It is a simple process requiring the operator to take these 4 steps:

1. Connect the vapor sampling hose to the instrument and then to the low side vapor port of the

system or cylinder.

2. Open the low side valve of the cylinder and press TEST (see Figure 4-3 A).

3. When the test is complete, close the low side valve of the cylinder and disconnect the hose from

the cylinder.

4. Disconnect the hose from the Pur•Chek™ Pro for storage.

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Bacharach PUR-CHEK PRO Manuál s instrukcemi Strana 13