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HD33MT.4 Series – Data Logger for Weather Station, 4G
Brand: Delta OHM S.R.L.HD33MT.4 most universal compact meteorological data logger series with universal 4G/3G/2G/GPRS modem.
Designed to work with power supply from a solar panel, very low power consumption; solar charger and regulator are already integrated in this logger.
Just add a solar panel and the rechargeable battery and you are independent from any further power source. But of course it can also be powered directly from a power supply if that is more convenient.
Optionally, on request, an internal atmospheric pressure sensor can be added to the logger. As the electronic circuits for this are already integrated, this will not influence the number of free available inputs .
The modem will step down (from 4G to 3G to 2G) when a certain network is not available.
Standard supplied without display, ordering code with display HD33LMT.4
Depending on the sensors connected, simultaneous monitoring of: temperature, humidity, dew point, atmospheric pressure, solar radiation, amount of rain, wind speed and direction,
Features- 4 analog independently configurable inputs
- 2 voltage-free counting contact inputs
- SDI-12 “Master” port compatible with version 1.3.
- RS485 port Modbus-RTU configurable as “Master” or “Slave”.
- Ethernet MODBUS TCP/IP (optional as HD33MT.4/E or HD33LMT.4/E).
- 2 voltage-free contact alarm outputs.
Specifications
Brand
Power Supply
- If the rechargeable battery is used: 18…30 Vdc
- If the rechargeable battery is not used: 7…30 Vdc without ETHERNET module, 12…30 Vdc with ETHERNET module
Power Consumption at 12 Vdc
- < 3 mA without ETHERNET module and with no GSM/3G activity
- ∼ 200 mA with ETHERNET module and with no GSM/3G activity
- < 1 A peak during GSM/3G activity
Battery
- Optional internal lead 12 V / 3.4 Ah. Max. charge current 1 A.
- The autonomy depends on the number and type of sensors connected.
Switched Power Supply Output
- If the data logger is powered by a solar panel (+Vpanel input), the output is equal to the voltage of the internal lead battery (nominal 12 V).
- If the data logger is powered by the +Vdc input, the output is equal to the voltage of the +Vdc input.
- The output is active only when the external sensors have to be powered.
Antenna
- External
Measuring Interval
- 1, 2, 5, 10, 15, 30, 60 minutes
- 1, 2, 5, 10, 15, 30 seconds
Logging Interval
- 1, 2, 5, 10, 15, 30, 60 minutes
- 1, 2, 5, 10, 15, 30 seconds
Internal Memory
- Circular management or stop logging if memory is full
- Number of samples: from 242,850 to 858,070 depending on the number of detected quantities.
Alarm
- Sending of alarm e-mail and SMS.
- Two voltage-free normally open (NO) contact alarm outputs. Max. 300 mA @ 30 Vdc resistive charge.
Display
- Optional custom LCD
LED Indicator
- GSM/3G activity (blinks green)
- 2-color LED: power on (blinks red)
Connection to PC
- USB port with mini-USB connector
ETHERNET Connection
- RJ45 connector (only if the optional ETHERNET module is present)
Internal Clock Drift
- ± 2 ppm (0 to +40° C) / ± 5 ppm (-40 to +70° C)
Operating Conditions
- -40 to +70° C / 0 to 100 %RH for the version without LCD
- -20 to +70° C / 0 to 100 %RH for the version with LCD
Weight
- 1 kg approximately
Housing
- Dimensions: 270 x 170 x 110 mm (excluding external antenna)
- Material: Polycarbonate (PC)
- Protection degree: IP 65 (with protective cap on the USB connector)
Installation
- Installation
