Chenzhu CZWB110-EX

Technichal Data

• Characteristic : Intrinsically Safe

General

• Number of channels :  1
• Dielectric strength :   1500V AC;1minute(between input and output )
• Temperature drift : 0.01%F.S./℃
• Response time : According to IEC 61326-1(GB/T 18268)
• Insulation resistance : ≥100MΩ;500V DC(between input and output)
• Electromagnetic compatibility : According to IEC 61326-1(GB/T 18268)
• EX marking : Ex ia ⅡCT4/T6 Ga
• Weight : Approx 45g
• Suitable location : zone 0;zone 1;zone 2;IIA;IIB;IIC;T4;T6

Input data

• Output current : 4~20mA
• Current output load resistance : RL≤(Ue-12)/0.021Ω
• Alarm indication : Lower limit overflow alarm,output current ≈3.8mA;Upper limit overflow and breakage alarm,output current ≈20.8mA

Power supply

• Supply voltage(Ue) : 12～28V DC
• Power supply mode : Loop powered

Dimensions

• Depth : 46.6mm
• Width : 25.0mm

Housing

• Material : PC
• Degree of protection :  IP20
• Flammability rating : UL94/V0
• Colour : blue

Product Approvals

Approvals : NEPSI

Safe data(EX)

• Max.output voltage Uo  : 8.5V(3,4,5,6)
• Max.output current Io  :  30mA(3,4,5,6)
• Max.output power Po  : 63mW(3,4,5,6)
• IIC Max. external inductance Lo : 10mH(3,4,5,6)
• IIC Max. external capacitance Co : 4.0uF(3,4,5,6)
• Max. Input voltage Ui : 28V(1,2)
• Max. Input current Ii : 93mA(1,2)
• Max. Input power Pi : 0.66W(1,2)
• Max. internal inductance Li : 0mH(1,2)
• Max. internal capacitance Ci : 2.5nF(1,2)

EMC data

• Electrical fast transient/burst immunity :  According to:IEC 61326-1;Class A
• Surge immunity : According to:IEC 61326-1;Class B
• Radiated,radio-frequency,electromagnetic field immunity  : According to:IEC 61326-1
• Electrostatic discharge immunity  : According to:IEC 61326-1;Class A
• Immunity to conducted disturbances, induced by radio-frequency fields  :  According to:IEC 61326-1
• Immunity to conducted, common mode disturbances in the frequency range 0 Hz to 150 kHz :  According to:IEC 61326-1

Operating conditions

• Ambient temperature :  -40℃~+85℃
• Storage temperature :  -40℃~+85℃
• Relative humidity : 10%~90%
• Environmental requirements :  The air should not contain any medium corrupting the coat of chrome,nickel and silver.Moreover,violent quiver and impact or any cause of electromagnetic induction (such as big current or spark,etc.)must be avoided when using

Connection data

• Conductor cross section flexible range :  0.5~2.5mm²
• Conductor cross section AWG min :  12
• Conductor cross section AWG max. : 24
• Stripping length : 8mm
• Screw thread : M4
• Connection method : Screw connection
• Tightening torque min. :  0.5 Nm
• Tightening torque max. : 0.6 Nm