Preset | 1 preset |
Display | Time range |
Digits | Time range |
Function | Time counter (with ATEX) |
Product Family | 499 ATEX Pneumatic timer |
Technology | Pneumatic |
Digit Height [mm] | - 1.5 mm x 4 mm white/black (preset time)
- 1.5 mm x 3 mm white/black (remaining time)
|
Reset | pneumatic reset |
Count Input | subtracting |
Time Setting | - positive (NC version): after the set time has elapsed, input 1 is connected to output 2
- negative (NO version): after the set time has elapsed, input 1 to output 2 is disconnected
|
Reset Time | timer 1 is started when input 1 is pressurized |
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 | < 40 µm |
Vibration Resistance | use suitable filters when necessary |
Shock Resistance | - IP40 with connected hoses.
- IP55 when using a transparent hinged cover (see Accessories)
|
Susceptibility to Magnetic Interference | - Timer: 30m/s^2 (10-500Hz)
- Reset: 50m/s^2 (10-500Hz)
|
Noise Level | 400m/s^2 (5ms) |
Cable Length | - ATEX approval:
- Gas: Ex II 2G Ex h IIB T4 Gb (0°C ? Ta ? 60°C)
- Dust: Ex II 2D Ex h IIIB T120°C Db (0°C ? Ta ? 60°C)
- Mining: Ex I M2 Ex h I Mb (0°C ? Ta ? 60°C)
|
Size [mm] | 48x24x60 |
Mounting | front panel installation or DIN-rail attachment |
Mounting Position | Any position (preferred reading direction) |
Mounting Depth [mm] | 57,5 mm |
Front Panel Cutout | 45 x 22,2 mm |
Weight [g] | approx. 50 g (3.2 oz) |
Connection | hose coupler M5 |
Repeating Accuracy | continuous with rotary knob |
Refresh Time | 200ms (For resetting at input 1) |
Setting Accuracy | - Depends on version:
- 0.2 - 3 s: ± 0.1 s
- 2 - 30 s: ± 0.3 s
- 8 - 120 s: ± 1.2 s
- 20 - 300 s: ± 3 s
|
Meets PTB Requirements | - Depends on version:
- 0.2 - 3 s: ± 0.3 s
- 2 - 30 s: ± 0.6 s
- 8 - 120 s: ± 3 s
- 20 - 300 s: ± 6 s
|
The convenient Type 499 timer with ATEX features compact fitting dimensions and can, as a result of its standard DIN dimensions, also be fitted to a DIN rail system. The unit features a stationary preset value and settable time range from 0.2 to 300 seconds. Type 499 timers do not require a continuous air supply.
The ATEX version of pneumatic timer 499 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).