With 16 alarm control output relays in it, and 4 types, optional
DT501：1-8 channels upper, lower limit alarm control output extension box
DT502：9-16 channels upper, lower limit alarm control output extension box
DT503：1-16 channels upper limit alarm control output extension box
DT504：1-16 channels lower limit alarm control output extension box
Can be with RS485/ RS232/Modem isolated communication interface
FBBUS-ASCII principle and MODBUS-RTU principle, optional
Universal input signal
Thermoresistance: Pt100、Pt100.0、Pt10、Cu50、Cu100
Thermocouple: K、E、S、B、J、R、T、N, with automatic cold temperature compensation
Standard signal: 0-10mA、4-20mA、0-5V、1-5V, linear and evolution signal
Remote pressure meter: 30-350W
General linear nonstandard signal: 0-60mV or 0-5V
Alarm relay
Max with two alarm relays, three alarm types for choose
“or” alarm: just any one channel alarm, relay works
“indication channel” alarm: just one specified channel alarm, relay workd
“track” alarm: when detect one channel, relay works according to channel state
