Features
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This digital instrument provides accurate measurement of engine angular velocity in RPM.
THA3.1 measures output signal frequency from alternator AC contact, engine electronic control unit or non-contact angular velocity sensor. The result of measurement displays on LED indicator.
Depending on versions the the tachometers have varied ratios.
| Version | Part Number | Ratio | Application |
| 2,71 | CHSDM motorgraders | ||
| 1,76 | CHTZ vibrating rollers | ||
| 3,45 | CHETRA tractors (Cummins engines) | ||
| 0,4 | BELAZ dump tracks (Cummins engines) | ||
| 1,71 | CHTZ tractors | ||
| 0,77 | CHSDM tractors T10 (Cummins engines) | ||
| 0,942 | CHTZ tractors (with hydromechanical transmission) | ||
| 1,25 | CHSDM tractors T10 (YAMZ and CHTZ engines) | ||
| 0,431 | CHSDM tractors T10 | ||
| 0,359 | CHSDM tractors T10 (with electric starter) |
| ×èñëî ðàçðÿäîâ öèôðîâîãî òàáëî | 4 |
| Âûñîòà öèôð òàáëî, ìì | 9,2 |
| Ïîãðåøíîñòü ïîêàçàíèé,îá/ìèí, íå áîëåå | ±20 |
| Öèêë îáíîâëåíèÿ ïîêàçàíèé öèôðîâîãî èíäèêàòîðà, ñåê | îò 0,5 äî 2,0 |
| Íîìèíàëüíîå íàïðÿæåíèå ïèòàíèÿ, Â | 24 (12) |
| Ïîòðåáëÿåìàÿ ìîùíîñòü ïðè íîìèíàëüíîì íàïðÿæåíèè ïèòàíèÿ, Âò, íå áîëåå | 3 |
| Ñòåïåíü çàùèòû îò âíåøíèõ âîçäåéñòâóþùèõ ôàêòîðîâ |
IÐ54 |
| Äèàïàçîí òåìïåðàòóð îêðóæàþùåé ñðåäû, °Ñ | |
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îò ìèíóñ 45 äî +55 |
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îò ìèíóñ 60 äî +65 |
| Êðåïëåíèå òàõîìåòðà | ùèòîâîå |
| Ãàáàðèòíûå ðàçìåðû, ìì, íå áîëåå | 65 × 65 × 58 |
| Ìàññà, êã, íå áîëåå | 0,12 |
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