Type 634/635 is an electromechanical mini-totalizing counter with a 6 or 7-digit optical display, with standard pattern connector arrangement. The small dimensions and low power consumption make this the ideal device for front panel installation or PCB use. Types 1 and 3 can be machine-soldered and can, if necessary, be washed with no problems. The 634 variant is characterised by its excellent protection against magnetic disturbance, while model 635 is particularly impact-resistant.
| Product Family | 634/635 |
| Function | Totalizing counter |
| Technology | Electromechanical |
| Digits | 6-digit |
| Display |
|
| Preset | none |
| Digit Height [mm] | 4 mm (0.2 in), visual |
| Voltage |
|
| Reset | without reset |
| Duty Cycle at 25 °C | 100 % |
| RI + RV [Ohm] | 320-3720 |
| Power Consumption | 60 400 mW |
| Pulse Length min. | 50 ms |
| Supply Voltage |
|
| Count Frequency [Hz] | 10 Hz |
| Count Input | adding |
| Electrical Connection |
|
| Maintenance-Free operation | 10? pulses |
| IP Protection Class | IP65, IP66 |
| Operating Temperature [°C] | 10 + 50 °C (+ 14 ... 122 °F) |
| Storage Temperature [°C] | 40 + 85 °C (+ 14 ... 122 °F) |
| Degree of Protection |
|
| Susceptibility to Magnetic Interference | type 634 with 100 kA/m (328 kA/ft) (PTB) no effect |
| General Design | EN 61 010-1 / IEC 61010-1 |
| Vibration Resistance |
|
| Shock Resistance |
|
| Protection Class | II, EN 61010-1 / IEC 61010-1 |
| Contamination Level |
|
| Size [mm] |
|
| Mounting Options | Various variants |
| Mounting |
|
| Reset | without reset |
| Weight [g] | approx. 10 g (3.2 oz) |
| Mounting Position | horizontal rolling axis |