Channels: 2
Max. load weight: 300g
Drinking bottle volume: 150ml
Resolution: 10mg
Long term-fluctuation: <±0.1g
Noise: depends on temporal resolution: typ: ±10mg, max: ±15mg for a standard measuring interval of 1 minute
Temperature dependency: typ: 0.02g/°C, max: 0.1g/°C
Activity:
The infrared sensors of the system measure the activity of an animal by recording the body heat image of that animal and its spatial movement. The activity is measured in all three dimensions in the range of the sensor. Since infrared radiation cannot pass through standard cage plastics, sensors in adjacent cages do not interfere with each other.
Temperature/Relative Humidity:
The feature of logging temperature and relative humidity is well suited to monitor the ambient conditions in animal facility rooms. The integrated high precision sensors for temperature and relative humidity are calibrated and cover a wide measurement range.
Temperature Sensor: Multi-sensor module with calibrated digital output.
Measuring Range: -40 to 60°C
Resolution: 14Bit or 0.01°C
Accuracy: < ±0.4°C at 5 to 40°C, < ±1°C below 5°C / above 40°C
Humidity Sensor: Multi-sensor module with calibrated digital output.
Measuring Range: 0 to 100% relative humidity (RH)
Resolution: 12Bit or 0.03% RH
Accuracy: < ±2% at 10 to 90% RH, < ±4% at 0 to 10% and 90 to 100% RH, Non-linearity (10 to 90% RH) < ±3% RH
Light Intensity:
The light intensity logging feature is predominantly designed to monitor the animal facilities ambient and to detect potential faults or failures in illumination.
The measurement gives a general comparative idea of how much light there is in an area (sunlight v. shade, lights on/off, etc.) but not absolute values. The spectral response of the sensor emulates the human eye. Infrared wavelengths (emitted from halogen lamps, for example) interfering with light in the visible range are sharply attenuated.
Similar to the human eye the measured light intensity varies with the direction from which it reaches the sensor.
A special saving procedure ensures that flickering of a light source caused by the mains voltage doesn't influence the reading.
The light sensor is high sensitive from 1 to 20.000 lux. Because of that minor changes in the light intensity may yield significant differences in the measured values. This has to be considered when inspecting the results of light intensity logging.
Sensor: Light-to-voltage optical sensor with photodiode/amplifier chip
Measuring Range: 0 to 20.000Lux
Resolution: 1Lux at 0 to 200Lux, 10Lux at 200 to 2.000Lux, 100Lux at 2.000 to 20.000Lux
Accuracy: < ±3Lux, Non-linearity < ±2Lux, Zero error (offset) < ±1Lux
Analog Input (from External Sources):
The connector for external data input accepts any kind of analog signal sources. The analog-to-digital converter has a resolution of 10Bit.
Analog-to-Digital Converter: On-chip, 2.5V reference voltage
Signal Input: 0 to 2.5V
Impedance: 1 MOhm
Resolution: 10Bit or 2.44mV
Accuracy: < ±3Bit, Non-linearity < ±1Bit, Zero error (offset) < ±2.5Bit
