MTTS 4METER Lightmeter Owner’s Manual

: June 10, 2024
: MTTS

Table of Contents

MTTS 4METER Lightmeter
Product Information
Product Usage Instructions
Parts
Key Functions
Light Irradiance Sensor
Displays/Indicators
Specifications
Ordering Information and Servicing
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

MTTS 4METER Lightmeter

MTTS-4METER-Lightmeter-product

Product Information

The Meter by 4METER is an instrument used to determine the actual level of sources required for effective medical therapy. It comes with a light irradiance sensor that has a spectral response chosen to match the wavelength used for jaundice treatment. The device also has a two-sided measurement for convenient measurement of double-sided phototherapy devices such as the MTTS Firefly.

Key Functions

Light Irradiance Sensor
- Spectral response chose to match the wavelength used for jaundice treatment.
- Two-sided measurement for convenient measurement of double-sided phototherapy devices such as the MTTS Firefly.
Displays/Indicators
- Touch screen liquid-crystal display (LCD).
- Alarms: low battery, system failure, out of measurement.
- Results ‘freeze’.
- Bandwidth estimator.
- Absolute and relative irradiance measurement.
- Multi-point mode.

Dimensions and Weight:

Height: 148 mm
Width: 73 mm
Depth: 17 mm
Weight: 200 g

Performance Specifications:

Application: LED and blue fluorescent phototherapy light sources; using the lightmeter for halogen phototherapy results in a minor but not considerable error; various gas sources used for respiratory therapy.
Light Sensor Spectral Response: 400-520nm
Measurement Range: +/- 3% of reading
Resolution Cosine Characteristics
Accuracy:
- Oxygen Sensor
- FiO2: 21-100%
- Flow Sensor
- Flow: 0-120 lpm, bi-directional
- Manometer
- Pressure Pressure
- High-Pressure Sen
- Temperature: 5-60oC
- Humidity: 0-100% RH

Battery Specification:

Type: 2xAAA 1.5V Alkaline, Non-rechargeable
Lifetime: Up to 120h operating time

Environmental Specification:

Operation Temperature
Storage Temperature
Operation Atmospheric Pressure
Storage Atmospheric Pressure
Operation Humidity
Storage Humidity
Sealing
Drop/Shock Standards:
- ISO 13485:2016
- IEC 61010-1:2010
- IEC 61326-1:2012

Ordering Information and Servicing:
For ordering or servicing information, please contact MTTS at info@mtts- asia.com or visit their website at https://mtts- asia.com. Calibration parts are required every 2 years after the delivery date, and no customer-serviceable parts are available. Please return the device to MTTS for calibration or service.

Product Usage Instructions

Turn on the Meter by pressing the power button.
Choose the appropriate measurement mode from the touchscreen display.
Position the light irradiance sensor towards the source to be measured.
Read the results displayed on the LCD screen.
If an alarm sounds, check the battery level or system failure and take appropriate action.
To freeze the results, press the ‘freeze’ button on the touch screen display.
When finished, turn off the Meter by pressing the power button again.

Note:
Calibration parts are required every 2 years after the delivery date. Please return the device to MTTS for calibration or service if needed.

Parts

An instrument for determination of the actual level of sources required for effective medical therapy.

MTTS-4METER-Lightmeter-fig-2

Key Functions

Blue light irradiance measurement:
- verify irradiance of phototherapy devices during preventive maintenance and normal use
O2 measurement:
- verify the purity of O2 sources (tank, generator, wall) during preventive maintenance
- verify the mechanical blender and another blender during preventive maintenance
- leak search inside the device and along external tubes during repair and equipment inspection
Pressure measurement:
- verify pressure at Y connector during use
Flow measurement:
- verify flow output of CPAP, Hi-flow, and ventilators during preventive maintenance
High-pressure measurement:
- verify hospital gas sources and check them for fluctuations
Temperature and humidity measurement:
- verify the temperature uniformity of the radiant warmers
- check the temperature and humidity inside the incubators

Light Irradiance Sensor

Spectral response chosen to match the wavelength used for jaundice treatment
Two-sided measurement for convenient measurement of double-sided phototherapy devices such as the MTTS Firefly

Light Sensor Spectral Response

MTTS-4METER-Lightmeter-fig-1

Displays/Indicators

touch screen liquid-crystal display (LCD)
alarms: low battery, system failure, out of measurement
results ‘freeze’
bandwidth estimator
absolute and relative irradiance measurement
multi-point mode

Specifications

Dimensions and Weight

Height: 148 mm
Width: 73 mm
Depth: 17 mm
Weight: 200 g

Performance Specifications

Application

LED and blue fluorescent phototherapy light sources; using the lightmeter for halogen phototherapy results in a minor but not considerable error
Various gas sources used for respiratory therapy

LIGHT SENSOR

Spectral response 400-520nm
Measurement range
- single side 0.1 – 150.0 μW/cm²/nm
- double side 0.1 – 300.0 μW/cm²/nm
Resolution 0.1 μW/cm²/nm
Cosine characteristics
- ±2% @ 30-degree angle
- ±7% @ 60-degree angle
- ±25% @ 80-degree angle
Accuracy +/- 3% of reading
OXYGEN SENSOR
- FiO2 21-100%
FLOW SENSOR
- flow 0-120 lpm, bi-directional
MANOMETER
- pressure 0-100 cm H2O
HIGH-PRESSURE SEN.
- pressure ±100 psi
TEMP/HUMIDITY SEN.
- temperature humidity
- 5-60oC
- 0-100% RH

Battery Specification

Type 2xAAA 1.5V Alkaline, Non-rechargeable
Lifetime Up to 120h operating time

Environmental Specification

Operation Temperature 10°C to 40°C
Storage Temperature 0°C to 50°C
Operation Atmospheric Pressure 70 – 106 kPA
Storage Atmospheric Pressure 70 – 106 kPA
Operation Humidity 30 – 90% RH non-condensing
Storage Humidity 5 – 90% RH non-condensing
Sealing IP-54
Drop/Shock 1m onto a hard surface, meets or exceeds IEC 60068-2-32 (only with the protective case)

Standards

ISO 13485:2016
IEC 61010-1:2010
IEC 61326-1:2012

Ordering Information and Servicing

ORDERING INFO/ITEM ORDER NO

Lightmeter LM-800 Main Unit
Oxygen meter LM-800-020
Flow meter LM-800-030
Manometer LM-800-040
High-pressure meter LM-800-050
Temperature/Humidity meter LM-800-060
Rechargeable batteries and charger LM-800-070
Storage case LM-800-080
Calibration
- Required Every 2 years after delivery date; return to MTTS for calibration
Parts No customer serviceable parts; return to MTTS for service