The patrol instrument switches the input signals through the multiplex switch, and goes round by measuring and processing one by one. Each point requires 0.2 seconds of processing time, the more channels, the longer the tour week, so the patrol meter is suitable for many signal points, but the change is not very fast occasions.
Number of channels: 2~96 channels.
Thermal resistance: Pt100, Cu100, Cu50, BA1, BA2, G53 and so on
Thermocouples: K, S, R, B, N, E, J, T, etc.
DC current: 4 to 20mA, 0 to 10mA, 0 to 20mA, etc.
DC voltage: 1 ~ 5V, 0 ~ 5V, 0 ~ 10V, etc.
Itinerant inspection speed: 0.2 s / per channel
Thermocouple input wire resistance: less than 100 ohms
Thermal resistance input wire resistance: less than 20 ohms
Measuring accuracy: + 0.2%F.S + 1 words
Thermocouple cold end compensation accuracy: + 1 degrees, range 0~60
Setting accuracy: consistent with the display value, no relative error.
2 bit LED channel number display
4 bit LED measurements show
Each channel alarm status indicator light
Call the police
4 measuring and alarming modes; 2 point common alarm relay output
Sensor fault relay output. (extended function)
Multipoint control relay output. (extended function)
Output relay contact capacity, AC250V, 2A (resistive load)
AC187V to 242V power 10VA
DC20 to 28V power 8VA
Temperature: 0~50 DEG C
Humidity 20 ~ 90%RH
RS232, RS485, RS422, and no communication can be omitted
Split print, integrated printing, no printing