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HD33MT.4– Data Logger for Weather Station, 4G

Make:  Delta Ohm       Model: HD33MT.4
✅ Datalogging of temperature, relative humidity, dew point temperature, atmospheric pressure, solar radiation, rainfall amount, wind speed and direction
✅ Available in two versions: with input for standard RS485 MODBUS-RTU sensors or with inputs for dedicated Delta OHM sensors
✅ GSM/GPRS module for remote monitoring
✅ Data sending via email, FTP and to an HTTP server (e.g. Delta OHM Cloud)
✅ Can be powered by mains or photovoltaic panel (with optional external power supply unit)
                
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SKU: DL-HD33MT.4-DEL Category:

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.

Key Points:

  • 4 analog independently configurable inputs (0…50 mV, -50…50 mV, 0…1 V, 0…10 V, 0…20 mA or 4…20 mA, Pt100, Pt1000, thermocouple, potentiometer, pyrgeometer).
  • 2 voltage-free counting contact inputs (e.g. a tipping bucket rain gauge and a cup anemometer can be connected).
  • One RS485 port with Modbus-RTU protocol, configurable as “Master” or “Slave”.
  • One SDI-12 “Master” port compatible with version 1.3 of SDI-12 protocol.
  • 2 voltage-free contact alarm outputs.
Make

Delta ohm

Model

HD33MT.4

Connectivity

4G / E version equipped with 4G + ETHERNET

Power Supply

if integrated battery is used: 18…28 Vdc (externally powered)
or 12 Vdc (photovoltaic panel)
if integrated battery is not used: 7…28 Vdc (externally powered)

Power Consumption

< 5 mA during measurement /
< 1 A peak during GSM activity

Integrated lead acid battery

optional

Switched power supply output

Active only when external sensors have to be powered

Antenna

External, included

Measuring & logging Interval

1, 2, 5, 10, 15, 30 seconds / 1, 2, 5, 10, 15, 30, 60 minutes

Internal Memory

Circular management or stop logging if memory is full

Number of samples (depending on the number of the detected quantities)

from 242,850 to 858,070

Alarm

Sending of alarm e-mail and SMS.
Two voltage-free (NO) contact alarm outputs.

Operating Conditions

-40…+70 °C / 0…100 %RH without display
-20…+70 °C / 0…100 %RH with display

Internal clock

High stability ± 2 ppm (0…+40°C)/± 5 ppm (-40…+70°C)

Display

Optional custom LCD

Connection to PC

USB port with mini-USB connector – Free software

Dimensions

270 x 170 x 110 mm

Protection Degree

IP65

Inputs

– 4 analog standard inputs
– 2 voltage free contact inputs
– 1 RS485 MODBUS-RTU input
-1 SDI-12 input
– 1 passive T/RH probe

Atmospheric Pressure

optional internal sensor

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