PMA Process Controller

PMA Process ControllerUsed anywhere where monitoring of thermal processes is required, and in the event of a malfunction, the device switches to a safe state.

If the allowed temperature is reached, or if the monitoring equipment malfunctions within the allowed temperature range (sensor breakage or short circuit, component failure inside the equipment, software failure, power supply voltage failure or disallowed value, etc.). ）Set top box 55 immediately shuts down. The alarm contact is activated, and the "alarm" indicator light in the front panel and the background light on the display screen light up. The reason for the alarm is displayed in plain text on the display screen. In addition, the 24V DC signal can be used for external alarm signals.

PMA Process Controllerfeature

Certified according to EN 61508 SIL2 and EN 14597
Input of platinum 100 or J, K, N, and S-type dual thermocouples with 3-wire connection
Programmable temperature limit and switch hysteresis
Basic error% 3C0, 5%, 2-digit
Response time 0.5 seconds
1 SPDT relay for alarm output
Memory function of incorrect signals
Operator lock (password protected)
Clamp on the high cap DIN rail
Convenient four key operation

Specifications

PMA STB55 safety temperature limiter monitoring thermal PMA process controllerSTB55-1000-000

Dimensional drawing and selection table