I-Mark & Impulse
Using ohmmeter, check resistances across lettered terminals as listed in chart. SeeFig 1 . If resistances are not correct, replace gauge.
TEMPERATURE GAUGE RESISTANCES
| Terminal Position | Ohms | |
|---|---|---|
| I-Mark | ||
| IG-U | 90 | |
| IG-E | 248 | |
| U-E | 158 | |
| Impulse | ||
| IG-U | 88 | |
| IG-E | 197 | |
| U-E | 109 | |