background image

Y99AB-4 BASO Test Kit Application Note    

5

Continuity Testing

!

  CAUTION: Risk of Equipment Damage.

Turn off the power to the appliance. When the
meter is being used as a continuity tester, it should
never be put across line voltage potential.

Perform the following procedure for continuity
testing.

1.  Connect the test cable lead 44549-4 to the

milliampere jack on the test kit meter.

2.  Set the slide switch on the meter to the 0-500

(50 on scale) position.

3.  Connect the red and black alligator clips

together; turn the adjust knob clockwise until the
needle is above 500 (50 on scale). If unable to
get a reading of 500, check the alligator clip
connection or replace the batteries.

4.  Test for open circuits by touching or connecting

the alligator clips to terminals or points in the
circuit.

Closed Circuit Test

Perform the following procedure for closed circuit testing.

1.  Disconnect the thermocouple from the BASO

control.

2.  Attach the adapter assembly (64119-1D) to the

control and thermocouple.

3.  Remove the shorting jumper clip from the adapter

assembly.

4.  Set the slide switch on the meter to the 0-50

position.

5.  Attach the test cable lead 44549-8. Connect the red

clip to the copper tubing of the thermocouple and the
black clip to the adapter block terminal
(see Figure 7).

6.  Depress the reset button on the BASO control and

light the pilot using a safe lighting procedure. Hold
the reset button in for approximately 60 seconds or
until the output is high enough to hold the energized
valve.

7.  Observe output. The millivolt reading should agree

with the values listed in Table 1.

DC M ILLIVOLTS

PENN-BASO CONTROLS

0

10

20

30

40

50

100

300

500

700

900

MILLIAMPS

0-500

MILLIVOLTS

0-1000 0-50

ADJUST

MILLIVOLTS

MILLIAMPS

44549-8

Black

Red

Thermocouple

Lead

H19

High Pressure

Gas Valve

Reset

Button

Figure 7: Closed Circuit Test Connection Diagram

Summary of Contents for Y99AB-4

Page 1: ...res for each division on the dial Continuity Tester for detecting a broken or open circuit Definitions Automatic Pilot A device employed with gas burning equipment which automatically shuts off the gas supply to the burner being served by either direct or indirect means when the pilot flame is extinguished The pilot burner may or may not be constructed integrally with the device Closed Circuit Mil...

Page 2: ... thermocouple operated gas valve electrically operated gas valve and safety shutoff device connection diagrams Perform the following procedure for taking open circuit millivolt readings 1 Shut off the gas supply at the main manual shutoff valve 2 Disconnect the thermocouple from the BASO control 3 Attach the test cable lead 44549 8 to the thermocouple Connect the red clip to the copper tubing of t...

Page 3: ...p to the copper tubing of the adapter assembly and the black clip to the control end of the adapter assembly see Figure 5 3 Set the slide switch on the meter to the 0 50 or 0 1000 position 4 Reestablish pilot flame 5 The millivolt reading should agree with the values listed in Table 1 with a normal pilot flame see Figure 3 Note When taking a fixed load millivolt reading on a junction block thermoc...

Page 4: ... The milliampere reading at the moment of release is the dropout point of the BASO power unit Take two more readings by the same process and average the readings The milliampere dropout point must lie within the high and low range listed in Table 2 7 Pilot and main burner should extinguish within a few seconds If flames do not extinguish refer to the Troubleshooting section 44549 8 H17 Gas Valve R...

Page 5: ...llowing procedure for closed circuit testing 1 Disconnect the thermocouple from the BASO control 2 Attach the adapter assembly 64119 1D to the control and thermocouple 3 Remove the shorting jumper clip from the adapter assembly 4 Set the slide switch on the meter to the 0 50 position 5 Attach the test cable lead 44549 8 Connect the red clip to the copper tubing of the thermocouple and the black cl...

Page 6: ... 44549 8 Figure 8 Typical Thermocouple operated Gas Valve Connection Diagram Power Source Thermostat Transformer 44549 7 44549 8 BASO Magnetic Operator BASO Power Unit Reset Button B Valve Shutoff Valve Pilot Burner Gas Line Thermocouple Lead Red Black Figure 9 Typical Electrically operated Gas Valve Connection Diagram ...

Page 7: ...it Application Note 7 Transformer Shutoff Valve Pilot Burner Gas Line 44549 7 Black Red 44549 8 B Valve L Series Control Power Source Thermostat Thermocouple Lead Figure 10 Typical Safety Shutoff Device Connection Diagram ...

Page 8: ...r burning manual valve if included turned to the On position thermostat calling for heat Main burner does not come on Defective operator Check for operator input voltage If present replace the valve If not check voltage source Shorted thermostat circuit Perform the Continuity Testing procedure Thermostat not calling for heat or turned down manual valve if included in the On position Main burner do...

Reviews: