CL-420B Process Calibrator 4-20mA Product ID: CL-420B

LOOP Calibrator(V/mA)

The CL-420B Programmable Calibrator can measure loop current, voltage, and output current (current limiting).
It can calibrate signal receivers, digital displays, and industrial sensors.
Suitable for engineers to repair sensing equipment and test sensors.

Certificate:CE

 


 

 

Input

Range

Input range

Resolution

Accuracy

Explanation

Voltage

28V

-0.200 ~28.000V

1mV

±0.02% reading ±2mV

Input resistance 2MΩ

Current

20mA

-1.000~22.000mA

0.001mA

±0.02% reading ±4uA

Input resistance 20MΩ

Loopcurrent

20mA

0.000~22.000mA

0.001mA

±0.02% reading ±4uA

Supply 24V loop power

 

 

 

Output

Range

Input range

Resolution

Accuracy

Explanation

Current

20mA

0.000~22.000mA

0.001mA

±0.05% Setting value ±4uA

20mA,the max.overload is 1kΩ(Note1)

Analogue transducer

-20mA

0.000~-22.000mA

0.001mA

±0.05% Setting value ±4uA

20mA,the max.overload is 1kΩ(Note2)

Looppower

24V

 

 

±10%

The max.output current is 25mA

 

 

 

Power

9V battery (ANSI/NEDA 1640A or IEC 6LR619 alkaline) or AC power adapter

Battery

Approx. 20 hours under the condition of 10mA

Max.allowable voltage

30V

Operation temperture range

0-50°C

Operation humidity range

≤80%RH

Store temperature range

≤-10°C-50°C

Store humidity range

≤90%RH

Size

200×100×40mm

Weight

550g(with holster)

Accessories

Operation manual,test line CF-36(probe with alligator clip)

Options

AC adapter(VCPS),test line CF-31-A(probe clip)

Security

Conforms to IEC 1010

 


Note:

 

1.The max.overlaod is 1kΩ at 20mA range when the power is higher than 6.8V,

 

The max.overlaod is 700Ω at 20mA range when the power is higher than 5.8-6.8V,

 

2.Power supply range:DC 5-25V

 

3.Temperature coefficient:±0.005%,range/°C(5°C-18°C,28°C-40°C)