CHINT RTD,Isolated Barrier(1 channel) 1in and 1out
RTD Input Isolated Barrier,Isolation from hazardous areas to safe areas, The product requires independent power supply, power supply, input and output three isolation.
Production parameters
| MODEL NO |
CB4071-EX |
| Number of channel |
1 input/1 output |
| Supply voltage(Ue) |
20~35V DC |
| Input signal |
Pt100;Cu50;Cu100 |
| Output signal |
0~20mA;4~20mA;0~5V;1~5V |
| Ex-marking |
[Ex ia Ga]IIC |
| Field apparatus |
2-RTD;3-wire RTD |
Technical data
1. General
| Number of channels |
1input/1output |
| Dielectric strength |
Non-intrinsically safe part and intrinsically safe part≥2500VAC,power supply part and non-intrinsically safe part≥500VAC |
| Temperature drift |
0.01%F.S./ºC |
| Response time |
Reach 90% of final value in 1s |
| Insulation resistance |
Non-intrinsically safe part and intrinsically safe part≥100MΩ,power supply part and non-intrinsically safe part≥100MΩ |
| Electromagnetic compatibility |
According to IEC 61326-1(GB/T 18268) |
| EX marking |
[Ex ia Ga]IIC [Ex iaD] |
| Weight |
Approx 100g |
| Field apparatus |
2-wire RTD;3-wire RTD |
| Suitable location |
zone 0;zone 1;zone 2;IIA;IIB;IIC;T4~T6 |
2. Input Data
| Input signal |
Pt100;Cu50;Cu100 |
3. Output Data
| Output signal |
0~20mA;4~20mA;0~5V;1~5V |
| Current output load resistance |
RL≤300Ω |
| Voltage output load resistance |
RL≥20kΩ |
| Alarm indication |
Lower than range, LED L falshing, output current ≈3.8mA;Higher than range, LED H falshing, output current ≈20.8mA;Breakage, LED L and H falshing at the same time, output current ≈20.8mA;Short circuit, LED L and H falshing alternately, output current ≈3mA |
4. Power Supply
| Supply voltage(Ue) |
20~35V DC |
| Power protection |
Reverse protection of power supply |
| Current consumption |
≤65mA (at 24Vdc supply,20mA output) |
| Power supply mode |
Independent power supply |
| Power connecting mode |
Terminal |
5. Housing
| Material |
PA |
| Degree of protection |
IP20 |
| Flammability rating |
UL94/V0 |
| Colour |
grey |
6. Product approvals
7. Standard/Specification
| NEPSI |
[Ex ia Ga] IIC Comply with standard: GB 3836.1,GB 3836.4,GB 3836.20 [Ex iaD] Comply with standard: GB 12476.1,GB 12476.4 |
8. Safe data
| Max. r.m.s. a.c. or d.c. voltage Um |
250V |
| Max.output voltage Uo |
28V(7,8,9) |
| Max.output current Io |
93mA(7,8,9) |
| Max.output power Po |
651mW(7,8,9) |
| IIC Max. external inductance Lo |
4.2mH(7,8,9) |
| IIC Max. external capacitance Co |
0.083μF(7,8,9) |
| IIB Max. external inductance Lo |
12.6mH(7,8,9) |
| IIB Max. external capacitance Co |
0.65μF (7,8,9) |
| IIA Max. external inductance Lo |
33.6mH(7,8,9) |
| IIA Max. external capacitance Co |
2.15μF(7,8,9) |
9. 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 |
10. Operating Conditions
| Ambient temperature |
-20ºC~+60ºC |
| Storage temperature |
-40ºC~+80ºC |
| 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 |
11. Connection Data
| Conductor cross section solid range |
0.5~2.5mm² |
| 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 |
M3 |
| Connection method |
Screw connection |
| Tightening torque min. |
0.5 Nm |
| Tightening torque max. |
0.6 Nm |
12. Installation
Audited Supplier 
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