Ametek PST-2000 Manuel - Sayfa 10

Test Ekipmanları Ametek PST-2000 için çevrimiçi göz atın veya pdf Manuel indirin. Ametek PST-2000 12 sayfaları.

Adjust the Signal Adjust knob to position the pointer to your tachome-

ter's full scale reading (2400 or 3000 rpm). If your full scale reading is

3500, position the pointer to 3000 rpm.

d. After a 5-second stabilization time, the displayed value should be within

the values given in the column headed "Full Scale Range" for your switch

setting.

Check the accuracy at half scale (1200 or 1500 rpm) as previously described, but

use the values in the "Half Scale Hertz" and "Half Scale Range", and adjust the

Signal Knob to position the pointer at 1200 or 1500. If your full scale reading is

3500, position the pointer to 1500 rpm.

Verify the hourmeter (if applicable) is advancing properly. The tenths wheel

should advance every 6 seconds while power is applied.

The following example will help you understand the procedure:

Your tachometer's switches S1, S3, and S5 are on (closed). After looking up that

switch combination in the "Switches Closed" column of Accuracy Table 072-40315

and reading across to the "Full Scale Hertz" column, your find that your frequency

value is "8400". You would then set the Signal Range knob on the PST-2000 to the

880–10k range and adjust the Signal Adjust knob to position the pointer at 3000 rpm.

If the tachometer is accurate at full scale, the PST-2000 will display between 8232 and

8568 as given in the Full Scale Range column.

10 Fuel Level and Temperature Gauges

Unplug the gauge to be tested (or remove it from the 6/7 instrument panel) and

connect the PST-2000 as described in Figure 2.

Turn the PST-2000 Input Voltage switch to either 12 volts or 24 volts, whatever is

appropriate for your vehicle.

Turn the ignition on.

If the green Battery Voltage LED is on, continue this procedure.

b. If one of the red LEDs is on, the Input Voltage switch may not be set to

the vehicle's battery voltage, or the battery voltage is too high or too low.

If no LED is on, the PST-2000 fuse may be blown, the PST-2000 or its in-

put cable may be defective, or you may have a bad power connection.

Recheck your connections.

Note - If using an AC/DC adapter input cable, the High LED may light when

no gauge is connected to the tester. Disregard this indication.

Configure the PST-2000 Resistance Out switches until the gauge pointer aligns

with the gauge test point value given in Table 2 for the type of gauge you are test-

ing.

Important! Tap the gauge while adjusting the switches to accurately align the

pointer.

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