HTC LX-104 Data Logger Lux Meter | 0–400,000 Lux | USB PC Interface | Data Logging | Peak Hold | Max/Min | Lux & FC
HTC LX-104 Data Logger Lux Meter
The HTC LX-104 is a professional digital illuminance (lux) meter with data-logging capability, designed to measure light intensity in Lux and Foot-candle (FC). It uses a silicon photodiode with a spectral-response filter and is designed around the CIE photopic response of the human eye.
Key Features
- Wide measurement range: up to 400,000 Lux
- Measures in Lux or Foot-candle (FC)
- 0.1 Lux resolution
- 3¾-digit LCD with high-speed bar graph
- 4 measurement ranges
- Automatic ranging
- Data Hold function
- Peak Hold function
- MAX/MIN measurement
- Relative measurement mode
- Automatic zeroing
- Large backlit LCD
- Low-battery indication
- Over-range indication
- Selectable automatic power-off
- USB computer interface
- Built-in memory for 99 readings
- Data logger capable of recording more than 16,000 values
- Adjustable data-logging sampling interval
- External photo detector with approximately 1.5 m cable
Technical Specifications
Parameter Specification
Model : HTC LX-104
Type : Digital Data Logger Lux Meter
Measurement Parameter : Illuminance
Lux Ranges : 400 / 4,000 / 40,000 / 400,000 Lux
FC Ranges : 40.00 / 400.0 / 4,000 / 40.00k FC
Resolution : 0.1 Lux / 0.01 FC
Accuracy : ±3% rdg ±0.5% f.s. below 10,000 Lux; ±4% rdg ±10 digits above 10,000 Lux
Repeatability : ±3%
Display : 3¾-digit LCD + 40-segment bar graph
Spectral Response : CIE Photopic
Spectral Accuracy : CIE V function, f₁′ < 6%
Cosine Response : f₂′ < 2%
Sampling Rate : Approx. 1.3 readings/sec
Detector : Silicon photodiode + spectral response filter
Data Memory : 99 manually stored values
Data Logger : More than 16,000 recorded values
Interface : USB
Power : 1 × 9V battery (6F22)
Operating Temperature : 0°C to 40°C
Operating Humidity : 0–80% RH
Storage Temperature : -10°C to 50°C
Storage Humidity : 0–70% RH
Detector Cable : Approx. 150 cm
Detector Size : 115 × 60 × 20 mm
Meter Size : 170 × 80 × 40 mm
Weight : Approx. 390 g
These specifications are from HTC’s current LX-104 documentation.
Measurement Range
The LX-104 provides four Lux ranges:
- 400 Lux
- 4,000 Lux
- 40,000 Lux
- 400,000 Lux
It can also display measurements in Foot-candles. 1 FC ≈ 10.76 Lux, while 1 kLux = 1,000 Lux.
Data Logging
One of the main advantages of the LX-104 over a basic lux meter is its data-logging capability. Measurements can be recorded over time and subsequently transferred to a computer through the USB interface.
The instrument provides 99-value internal memory, while its data-logger function can record more than 16,000 measurements. The sampling interval for logging can be configured according to the application.
Peak Hold & MAX/MIN
The Peak Hold function allows the instrument to capture short-duration peak light signals. HTC specifies that the peak function can trace light pulses with durations as short as approximately 10 µs.
The MAX/MIN function allows users to monitor the highest and lowest measured illuminance values.
USB & PC Connectivity
The LX-104 includes a USB computer interface for transferring logged measurements to a PC. Software is supplied for data analysis, allowing recorded measurements to be reviewed and processed.
Applications
The LX-104 can be used for checking and documenting lighting conditions in:
- Offices
- Schools and classrooms
- Laboratories
- Factories
- Warehouses
- Hospitals and healthcare facilities
- Commercial buildings
- Photography and studio environments
- Indoor lighting installations
- Industrial inspection
- Building maintenance
- General illumination surveys
It is particularly useful where light levels need to be measured repeatedly or recorded over an extended period, rather than simply taking a single reading.
Standard Accessories
The standard package is typically supplied with:
- HTC LX-104 meter
- External photo detector
- USB cable
- PC software
- Soft carrying case
- Instruction manual
- 9V battery
Product Advantages
HTC LX-104 combines a very wide 400,000 Lux measurement range with data logging, USB connectivity, peak detection, MAX/MIN measurements and a large backlit display. Its external sensor makes it convenient to position the detector at the measurement point while viewing the reading on the main instrument.
Short Description
HTC LX-104 Data Logger Lux Meter is a professional digital illuminance meter designed for accurate measurement and recording of light intensity from 0.1 Lux up to 400,000 Lux. It supports both Lux and Foot-candle measurements and features a silicon photodiode sensor, CIE photopic spectral response, 0.1 Lux resolution, data hold, peak hold, MAX/MIN, relative measurement, backlit LCD, USB connectivity and extensive data-logging capability. With memory for 99 manually stored readings and more than 16,000 logged measurements, the LX-104 is suitable for lighting surveys, industrial inspection, laboratories, offices, commercial buildings and other applications requiring reliable illumination monitoring.
Description
HTC LX-104 Data Logger Lux Meter
The HTC LX-104 is a professional digital illuminance (lux) meter with data-logging capability, designed to measure light intensity in Lux and Foot-candle (FC). It uses a silicon photodiode with a spectral-response filter and is designed around the CIE photopic response of the human eye.
Key Features
- Wide measurement range: up to 400,000 Lux
- Measures in Lux or Foot-candle (FC)
- 0.1 Lux resolution
- 3¾-digit LCD with high-speed bar graph
- 4 measurement ranges
- Automatic ranging
- Data Hold function
- Peak Hold function
- MAX/MIN measurement
- Relative measurement mode
- Automatic zeroing
- Large backlit LCD
- Low-battery indication
- Over-range indication
- Selectable automatic power-off
- USB computer interface
- Built-in memory for 99 readings
- Data logger capable of recording more than 16,000 values
- Adjustable data-logging sampling interval
- External photo detector with approximately 1.5 m cable
Technical Specifications
Parameter Specification
Model : HTC LX-104
Type : Digital Data Logger Lux Meter
Measurement Parameter : Illuminance
Lux Ranges : 400 / 4,000 / 40,000 / 400,000 Lux
FC Ranges : 40.00 / 400.0 / 4,000 / 40.00k FC
Resolution : 0.1 Lux / 0.01 FC
Accuracy : ±3% rdg ±0.5% f.s. below 10,000 Lux; ±4% rdg ±10 digits above 10,000 Lux
Repeatability : ±3%
Display : 3¾-digit LCD + 40-segment bar graph
Spectral Response : CIE Photopic
Spectral Accuracy : CIE V function, f₁′ < 6%
Cosine Response : f₂′ < 2%
Sampling Rate : Approx. 1.3 readings/sec
Detector : Silicon photodiode + spectral response filter
Data Memory : 99 manually stored values
Data Logger : More than 16,000 recorded values
Interface : USB
Power : 1 × 9V battery (6F22)
Operating Temperature : 0°C to 40°C
Operating Humidity : 0–80% RH
Storage Temperature : -10°C to 50°C
Storage Humidity : 0–70% RH
Detector Cable : Approx. 150 cm
Detector Size : 115 × 60 × 20 mm
Meter Size : 170 × 80 × 40 mm
Weight : Approx. 390 g
These specifications are from HTC’s current LX-104 documentation.
Measurement Range
The LX-104 provides four Lux ranges:
- 400 Lux
- 4,000 Lux
- 40,000 Lux
- 400,000 Lux
It can also display measurements in Foot-candles. 1 FC ≈ 10.76 Lux, while 1 kLux = 1,000 Lux.
Data Logging
One of the main advantages of the LX-104 over a basic lux meter is its data-logging capability. Measurements can be recorded over time and subsequently transferred to a computer through the USB interface.
The instrument provides 99-value internal memory, while its data-logger function can record more than 16,000 measurements. The sampling interval for logging can be configured according to the application.
Peak Hold & MAX/MIN
The Peak Hold function allows the instrument to capture short-duration peak light signals. HTC specifies that the peak function can trace light pulses with durations as short as approximately 10 µs.
The MAX/MIN function allows users to monitor the highest and lowest measured illuminance values.
USB & PC Connectivity
The LX-104 includes a USB computer interface for transferring logged measurements to a PC. Software is supplied for data analysis, allowing recorded measurements to be reviewed and processed.
Applications
The LX-104 can be used for checking and documenting lighting conditions in:
- Offices
- Schools and classrooms
- Laboratories
- Factories
- Warehouses
- Hospitals and healthcare facilities
- Commercial buildings
- Photography and studio environments
- Indoor lighting installations
- Industrial inspection
- Building maintenance
- General illumination surveys
It is particularly useful where light levels need to be measured repeatedly or recorded over an extended period, rather than simply taking a single reading.
Standard Accessories
The standard package is typically supplied with:
- HTC LX-104 meter
- External photo detector
- USB cable
- PC software
- Soft carrying case
- Instruction manual
- 9V battery
Product Advantages
HTC LX-104 combines a very wide 400,000 Lux measurement range with data logging, USB connectivity, peak detection, MAX/MIN measurements and a large backlit display. Its external sensor makes it convenient to position the detector at the measurement point while viewing the reading on the main instrument.
Short Description
HTC LX-104 Data Logger Lux Meter is a professional digital illuminance meter designed for accurate measurement and recording of light intensity from 0.1 Lux up to 400,000 Lux. It supports both Lux and Foot-candle measurements and features a silicon photodiode sensor, CIE photopic spectral response, 0.1 Lux resolution, data hold, peak hold, MAX/MIN, relative measurement, backlit LCD, USB connectivity and extensive data-logging capability. With memory for 99 manually stored readings and more than 16,000 logged measurements, the LX-104 is suitable for lighting surveys, industrial inspection, laboratories, offices, commercial buildings and other applications requiring reliable illumination monitoring.
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