Apogee SS-120 Kullanıcı El Kitabı - Sayfa 11

Ölçüm Cihazları Apogee SS-120 için çevrimiçi göz atın veya pdf Kullanıcı El Kitabı indirin. Apogee SS-120 20 sayfaları. Spectroradiometer

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Apogee SS-120 Kullanıcı El Kitabı

OPERATION AND MEASUREMENT

SS-100 series spectroradiometers have onboard circuitry which allows for output to a datalogger (via ModBus) or
computer (via USB).
DATALOGGER OUTPUT (VIA MODBUS)
Wiring
ModBus Register Layout
1-Output Mode:
0-
Digital Counts
1-
Calibrated Watts/m
2-
Calibrated µmoles/m
3-
Single Sensor Reflectance Mode
4-
Downward Facing Reflectance Mode
3- Update Holding Registers: Writing anything to this register begins a measurement sequence and updates the humidity,
temperature, integration period (if auto-integration is on), and spectrum registers.
5-Number of scans to average:
•
Accepts and number from 0 to 100. Truncates any decimal value to integer.
•
Can also read this register.
7-Integration Time:
•
Accepts any number from 1,000 to 10,000,000. Number sent is desired integration time in microseconds.
•
Sending a zero initiates auto-integration.
•
Can also read this register. Especially useful during auto-integration to log actual integration time.
9-Status Register: Read this register to check the status of the spectroradiometers
•
Returns 0 while measurement is in progress
•
Returns 1 on successful measurement
•
Returns 99 on error
2
2
s
Black: Ground
Red: Power (12 V)
White: Receive
Green: Transmit
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