| Display | Number discs |
| Digits | 5-digit |
| Function | Time counter (with ATEX) |
| Product Family | Type 497 ATEX - Pneumatic Preset Time Counter |
| Technology | Pneumatic |
| Digit Height [mm] | 4 mm (0.2 in) |
| Reset | Pneumatic and Button Reset |
| Count Frequency [Hz] | 5 Hz |
| Reset Lock | Approx. 150 |
| Signal Times | Signal duration at port A: From reaching preset value until Reset at 3 bar |
| Attention | Minimum time between last pulse and pneumatic reset must be at least 50 ms |
| Reset Frequency | max. 1 per 2 s |
| Count Input | adding |
| Frequency Error | max. 1 per 2 s |
| Output | In the first Second max. 15 % |
| Input | After reaching preset value, pressure air ON from output P to A |
| Time Setting | is ventilated with Intake Air during Signal Generation |
| IP Protection Class | - IP40 with connected hoses.
- IP55 when using a transparent protection cover (see Accessories)
|
| Operating Temperature [°C] | - 0
+ 60°C
- Maximum compressed air temperature: 30°C
|
| Service Pressure | 2 - 6 bar |
| Air Quality | Filtered, dried and unlubricated air according to ISO 8573-1: 2010 [7:4:4] |
| Filter Pore Width | designed for use with compressed air. Operation with other media/pure gases upon request |
| Degree of Protection | oilfree |
| Vibration Resistance | - IP40 with connected hoses.
- IP55 when using a transparent hinged cover (see Accessories)
|
| RoHS | - ATEX approval:
- Gas: Ex II 2G Ex h IIB T4 Gb (0°C = Ta = 60°C)
- Dust: Ex II 2D Ex h IIIB T130°C Db (0°C = Ta = 60°C)
- Mining: Ex I M2 Ex h I Mb (0°C = Ta = 60°C)
|
| Size [mm] | 75x60x125 |
| Mounting | Front Panel Mounting |
| Mounting Depth [mm] | 122 mm |
| Front Panel Cutout | 52 x 52 mm |
| Weight [g] | approx. 150 g (5.29 oz) |
| Connection | hose coupler M5 |
| Reset | 5-digit |
User-friendly integrated preset time counter, Type 497 with ATEX, is easy to install using a hose coupler or rapid-fit connector. It has convenient pushbutton setting and is equipped with a manual pushbutton reset. Additionally it can have either an integrated pneumatic or an automatic reset function. The display ensures permanently visible preset and is available with 3 or 5-digits. The time unit can be chosen as minutes or seconds.
The ATEX version of pneumatic timer 497 is certified for use in potentially explosive atmospheres where there is a risk of gas or dust explosion, zones 1 and 21 as well as for Mining (category M2).
