CL-420A multifunction Process Calibrator, loop, 4-20mA

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.

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Category： Calibrators for thermometers, sound level meter, process calibration

Certificate：CE

Product Introduction
The CL-420B is a handheld, programmable calibrator for measurement and signal output. It's great for measuring tiny currents and voltage signals, and it can power sensors while checking their returned current signals. Mainly used in sensor testing and monitoring gear, like for humidity, water level, wind speed, pressure, and other sensors and monitors. It's got this cool feature where it controls the minimum current in a live loop, and it can measure in a sensor's live loop too. Definitely a must-have tool for folks fixing up sensor equipment.
Measurement Specification
- Digits Display : 199,999
- Measure DCV : ±30.000 V ±(0.02% + 2MV)
- Measure DCI : ±30.000 mA ±(0.02% + 4UA)
- LOOP : DC 24V ±10%
- OUT DCI : 30.000 mA ±(0.05% + 4UA)
- LOOP DCI : 30.000 mA ±(0.05% + 4UA)
Product Features
- LED light :
- Backlighting :
- Stepping operation :
- Percentage display :
- Low battery Indicator :
- Automatic sleep :
- Zero calibration :
Product Information
- Best Operating Environment : 18 to 28°C / 20 to 80%RH without dew
- Storage Environment : -10 to 5°C / lower than 90%RH without dew。
- Elevation Limitation : Lower than 1,000 meters
- Power Supply : 1.5V (AA / LR6) Batteries x 3 pcs
- Dimension : 190 × 95 × 60 mm
- Weight : 430g
- Accessory : test lead (probe with alligator clip), Manual

The CL-420B is a handheld, programmable calibrator for measurement and signal output. It's great for measuring tiny currents and voltage signals, and it can power sensors while checking their returned current signals. Mainly used in sensor testing and monitoring gear, like for humidity, water level, wind speed, pressure, and other sensors and monitors. It's got this cool feature where it controls the minimum current in a live loop, and it can measure in a sensor's live loop too. Definitely a must-have tool for folks fixing up sensor equipment.

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)

CL-420B Process Calibrator 4-20mA

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

Product Introduction

Measurement Specification

Product Features

Product Information