Basler — Operational Test
Testing & diagnosis · Voltage regulator
From a Basler service manual — check it applies to your exact model before use.
Procedure
- Move wire on sensing transformer T1 to 120 V tap for SR4A or 240 V tap for SR8A.
- Adjust voltage stability potentiometer R4 fully counter-clockwise (CCW).
- Connect voltage regulator as shown in Figure 5-1.
- Adjust voltage adjust potentiometer for maximum resistance.
- Connect regulator to power source. Bulb should flash on momentarily then extinguish.
- Slowly adjust voltage adjust rheostat toward minimum resistance. Bulb should reach full brilliance before minimum resistance.
- If light does not illuminate, adjust centering adjustment R3.
- At regulating point, small change in voltage adjust potentiometer should turn bulb on or off.
- Before reinstalling, reconnect sensing transformer T1 as it was before Step 1.
Specs & values
- Bulb should be 120 V and not more than 300 W
Source: Basler service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.