Features of UT281 series Flex clamp

Certifications: CE, cETLus, RoHS

6000 count true RMS measurement;
Current range (auto ranging for each level)： UT281D: AC 6000A;
UT281E+/F: AC 10000A;
Inrush current: UT281D/UT281E+: 6000A
UT281F: 1000A
A flexible coil:
UT281D: 550mm (conductor φ: 175mm);
UT281E+/F: 1100mm (conductor φ: 350mm)
Frequency response: 45Hz – 500Hz;
AC/DC voltage: 1000V;
Resistance: 60MΩ ;
Power relative function (UT281F only):
Power test: up to 3600kW
Electrical energy: up to 3600kWh Power factor & Phase angle test
LCD dual-display: AC V + Hz; ACA + Hz
Alarm prompts;
CAT III 1000V / CAT IV 600V & IP54;
2m drop protection.

Model

UT699-S

UT699-D

Wavelength	1550nm (Supports 1577nm Live Fiber Test)	1310nm±20nm/1550nm±20nm
Dynamic Range	20dB	22dB/20dB
Number of Optical Ports	1
Test Range	0.1 to 80km
Fiber Type	Single mode
Optical Port	SC/UPC
Pulse Width	5ns to 20μs
Measurement Time	5s to 180s
Real-time Refresh Rate	2Hz
Attenuation Dead Zone	10m
Event Dead Zone	＜3m
Sampling Point	15600
MIN Sampling Interval	0.16m
Linearity	±0.05dB/dB
Loss Threshold	0.01dB
Loss Resolution	0.001dB
Distance Uncertainty	± (0.8 + 0.005% *Distance + Sampling Resolution) m
Input Light Detection	Supported
Refractive Index Setting	1.0000 to 2.0000
OPM Functions
Port	2.5mm universal port
Detector Type	InGaAs
Response Wavelength	700 to 1700nm
Calibrated Wavelengths	850/980/1270/1300/1310/1490/1550/1577/1625/1650nm
Power Range	+30 to -50dBm (C-type)
Accuracy	C-type: ±0.4dB(1310/1490/1550/1625nm) ±1dB(850/980/1270/1300/1577/1650nm)
Display Precision	0.01dBm
Display Unit	dBm, dB, W (auto switch to mW, uW or nW)
Frequency Identification	270/1K/2KHz
Wavelength Memory	✔
User Self-Calibration	Supported
Relative Measurement	Supported
VFL Functions
Port	2.5mm universal port
Wavelength	650±20nm
Output Power	10mW
Mode	CW/1Hz/2Hz
OLS Functions
Port	SC/UPC
Wavelength	1550nm	1310nm/1550nm
Output	＞-5dBm
Power
Mode	CW/270Hz/1kHz/2kHz/1kHz+Flashing/2kHz+Flashing
Others
Screen	3.5-inch color screen, 320*480 resolution, touch screen
LED Light	Supported
Auto Power Off	Supported
Charging Port	USB flash drive can be used for temporary storage; Type-C port
Battery	3.7V/2000mAh/Lithium battery
Battery Indicator	Yes, 5-level indicator
Operating Time	Standby > 6 hours, Measuring > 4 hours
Charging Indicator	Charging (red), Fully charged (green)
Operating Temp/Humidity	-10 to 50°C (Working); 0 to 45°C (Charging). <90% RH, non-condensing
Storage Temp/Humidity	100% Battery: 1hr at -20 to 60°C, 24hrs at -20 to 45°C.
	50% Battery: 12hrs at -20 to 60°C, 1 month at -20 to 45°C.
	Recommended: 50% battery, 65±20% RH, 25°C environment.
	Charge and discharge once every 3 months.
Size	123mm x 76mm x 39mm
Weight	About 206g	About 211g
Accessories	Optical Time Domain Reflectometer1, Gift Box1, User Manual 1, Type-C Cable 1, Cloth Bag*1.

UT281 Series Data Sheet

1 file(s) 1 MB

UT699-D UT699-S Data Sheet

1 file(s) 3 MB

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UT281 Series AC Flex Clamp

The UT281 series True RMS Flexible Clamp Meters are high-precision, multi-functional electrical measuring instruments. Boasting a current measurement range of up to 6000A, they are equipped with a 1100mm-long(UT281E+/F) flexible coil. These meters find extensive application across diverse fields including smelting, communications, manufacturing, petroleum, power, electrical engineering, and photovoltaic stations.

Models in UT281 series: UT281D，UT281E+，UT281F

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Category: Flex Clamp Sensor

Description

Wavelength	1550nm (Supports 1577nm Live Fiber Test)	1310nm±20nm/1550nm±20nm
Dynamic Range	20dB	22dB/20dB
Number of Optical Ports	1
Test Range	0.1 to 80km
Fiber Type	Single mode
Optical Port	SC/UPC
Pulse Width	5ns to 20μs
Measurement Time	5s to 180s
Real-time Refresh Rate	2Hz
Attenuation Dead Zone	10m
Event Dead Zone	＜3m
Sampling Point	15600
MIN Sampling Interval	0.16m
Linearity	±0.05dB/dB
Loss Threshold	0.01dB
Loss Resolution	0.001dB
Distance Uncertainty	± (0.8 + 0.005% *Distance + Sampling Resolution) m
Input Light Detection	Supported
Refractive Index Setting	1.0000 to 2.0000
OPM Functions
Port	2.5mm universal port
Detector Type	InGaAs
Response Wavelength	700 to 1700nm
Calibrated Wavelengths	850/980/1270/1300/1310/1490/1550/1577/1625/1650nm
Power Range	+30 to -50dBm (C-type)
Accuracy	C-type: ±0.4dB(1310/1490/1550/1625nm) ±1dB(850/980/1270/1300/1577/1650nm)
Display Precision	0.01dBm
Display Unit	dBm, dB, W (auto switch to mW, uW or nW)
Frequency Identification	270/1K/2KHz
Wavelength Memory	✔
User Self-Calibration	Supported
Relative Measurement	Supported
VFL Functions
Port	2.5mm universal port
Wavelength	650±20nm
Output Power	10mW
Mode	CW/1Hz/2Hz
OLS Functions
Port	SC/UPC
Wavelength	1550nm	1310nm/1550nm
Output	＞-5dBm
Power
Mode	CW/270Hz/1kHz/2kHz/1kHz+Flashing/2kHz+Flashing
Others
Screen	3.5-inch color screen, 320*480 resolution, touch screen
LED Light	Supported
Auto Power Off	Supported
Charging Port	USB flash drive can be used for temporary storage; Type-C port
Battery	3.7V/2000mAh/Lithium battery
Battery Indicator	Yes, 5-level indicator
Operating Time	Standby > 6 hours, Measuring > 4 hours
Charging Indicator	Charging (red), Fully charged (green)
Operating Temp/Humidity	-10 to 50°C (Working); 0 to 45°C (Charging). <90% RH, non-condensing
Storage Temp/Humidity	100% Battery: 1hr at -20 to 60°C, 24hrs at -20 to 45°C.
	50% Battery: 12hrs at -20 to 60°C, 1 month at -20 to 45°C.
	Recommended: 50% battery, 65±20% RH, 25°C environment.
	Charge and discharge once every 3 months.
Size	123mm x 76mm x 39mm
Weight	About 206g	About 211g
Accessories	Optical Time Domain Reflectometer1, Gift Box1, User Manual 1, Type-C Cable 1, Cloth Bag*1.

UT281 Series AC Flex Clamp

Features of UT281 series Flex clamp

UT281 Series Data Sheet

UT699-D UT699-S Data Sheet

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