Block Diagram - thuba PS 830 Manuel

Manual BVS 19 ATEX E 080 X
Failure to carry out this measure could result in
a 'welding of the relay contacts' and, conse-
quently, to a loss of the explosion protection
4.2.5 Blockdiagram
solenoid
Cut-off-contacts; alarm-contacts
5 Configuration and operation
Configure the PS 830 with the 4 keys and the
display.
5.1 Display
The built-in 8-figures display indicates operation
modes, present pressure or flow rate data, as
well as malfunctions.
5.2 Alarm monitor Lamp
The PS 830 has a monitor lamp below the dis-
play. This red lamp (LED) blinks if the pressure
inside of the Ex p-housing is below the defined
minimum pressure. In bypass mode the LED is
permanently on and in normal operation the
lamp is off.
Lamp

flashing

constant on
⊗
constant off
Edition July 2020
Copyright
mains
Meaning
The pressure inside of the cabinet
is below 0.8 mbar!
No explosionproof inside
cabinet!
Bypass mode is active –
no explosion proof inside cabinet!
Ex protection is "OK" –
normal operation
不执行这一措施可能导致"继电器触点的熔接"
，并最终导致防爆的失效。
4.2.5 块状图
solenoid
切断触点；警报触点
5 配置和操作
用4个键和显示器配置PS830。
5.1 显示
内置的8位数显示指示操作模式、当前压力或流
量数据以及故障。
5.2 报警监控灯
PS830在显示器下面有一个监视器灯。 如果防
爆正压腔内的压力低于定义的最小压力，则此红
灯(LED)闪烁。 在旁路模式下，LED是永久亮
的，在正常工作中，灯是关闭的。
灯

闪烁

常亮
⊗
不亮
mains
含义
机柜内的压力低于0.8mbar！
柜内没有防爆！
旁路模式，
机柜内没有防爆
正常运行，
防爆保护正常
thuba Ltd., CH-4002 Basel
Switzerland
31