BX8

BX8

Liên hệ để biết giá

– PID auto tuning
– Multi inputs (various sensor inputs)

Suffix code

Model	Suffix code		Description
BX8			Board type digital temperature controller
Control type	0		universal
Control type	1		Heating / Cooling
Selection		0	SV2, SV3
		1	HBA
		2	RS485
		3	RS485 / HBA

· Specification

Model

BX8

Function

· Fuzzy function	· Alarm Output Function(AL-1,2)
· Protection Structure(IP65 only the front)	· Auto operation function(ST, Low PV)
· Communication Function(RS485/422)	· Heating/cooling hysteresys
· Heater Break Alarm function(HBA)	variation function
· Input multi function	· Transmit Output Function(PV, SV, MV)
· Group PID function	· Input filter : OFF, 1 ~ 120 sec.
· Zone PID function	· Heating/cooling control function
· External contact function(DI 1, DI 2)	· Output Limit Function

Input Type

Thermocouple : K, J, E, T, R, S, B, L, N, U, WRe5 – 26, PL-II

· RTD : Pt 100 Ω, KPt 100 Ω

· d.c voltage input : 1~5 V d.c(For 4~20 mA d.c input, connect 250 Ω(0.1%) at the

exterior), -10~20 mV, 0~100 mV(programmable scale method)

Sampling Cycle

250 ms

Input Display Resolution

Basically, below the decimal point of the input signal and measuring range

Input Impedance

Thermocouple or mV input : above 1 MΩ, d.c V input : approx. 1 MΩ

Permissible resistance
of signal source

Thermocouple : below 250 Ω, Voltage : below 2 kΩ

Permissible
wiring resistance

RTD : below 150 Ω / single wire(but, the resistance of the 3 wires should be the same

Permissible input
resistance

Within ±10V(Thermocouple, RTD, Voltage : mV d.c), Within ±20V(Voltage : V d.c)

Noise rejection ratio

NMRR(normal mode) : above 40 dB, CMRR(common mode) : above 120 dB (50/60 Hz ±1%)

Applied standard

Thermocouple / RTD(KS / IEC / DIN)

Compensation
error at standard contact

±1.5 °C(15 ~ 35 °C), ±2.0 °C(0 ~ 50 °C)

BURN-OUT detection

Thermocouple : OFF, UP / DOWN selection

RTD : OFF, UP selection (when Thermocouple or RTD BURN-OUT, the detection current : approx. 50 nA)

Measuring Accuracy

±0.5%(FULL SCALE)

Input Range

Refer to “input signal and measuring range”

For thermocouple and RTD, the change is valid within the range of the input signal and measuring range table

For d.c voltage, the min/max voltage is possible within the each measuring range

and scaling is possible within the measuring condition

Power of operating sensors

20 V d.c(internal resistance 1.2 kΩ) Max. 50 mA, 15 V d.c (internal resistance 790 Ω)