123 DIN HALF SIZE HOUR METER TH63·TH64 is a new half-size hour meter from NAIS, with features such as small size, saving panel space, resettable, wide measurement range, easy installation, high precision and CE certification. It is suitable for the management of small generators and food processing machines, the hour counting of leased equipment, the maintenance management of various equipment, etc.
The TH63 and TH64 are compact DIN half‑size hour meters designed to save panel space while providing accurate hour counting for small generators, food‑processing machines, leased equipment, and maintenance management. The TH64 includes a reset button, while the TH63 does not.
The manual details the product’s features, typical applications, full technical specifications, wiring diagram, and step‑by‑step mounting instructions, including panel cutout dimensions and connector installation.
| Rated operating voltage | 12 V AC, 24 V AC, 48 V AC, 100 V AC, 115‑120 V AC, 200 V AC, 220 V AC, 240 V AC |
|---|---|
| Operating voltage range | 85 % to 115 % of rated operating voltage |
| Rated frequency | 50/60 Hz (selectable by switch) |
| Counting range (TH63) | 0 to 99 999.9 hours |
| Minimum time display | 0.1 hours (6 min) |
| Rated power consumption | ≈ 1.5 W |
| Initial insulation resistance | ≥ 100 MΩ between live and dead metal parts |
| Initial breakdown voltage | 2 000 Vrms between live and dead metal parts |
| Maximum temperature rise | 55 °C (131 °F) |
| Vibration resistance (functional) | 10 to 55 Hz, 1 cycle/min, double amplitude of 0.5 mm (10 min on 3 axes) |
| Shock resistance (functional) | ≥ 98 m/s² (10 G) (4 times on 3 axes) |
| Ambient temperature range | -10 °C to +50 °C (+14 °F to +122 °F) |
| Ambient humidity | Maximum 85 % RH |
| Weight | ≈ 80 g |
The TH63 can display a count from 0 to 99 999.9 hours.
The TH64 includes a reset button that, when pressed, returns the hour count to zero.
They are rated for 12 V AC, 24 V AC, 48 V AC, 100 V AC, 115‑120 V AC, 200 V AC, 220 V AC, and 240 V AC.