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Module with 2 NTC inputs and 2 digital inputs


DB2-2NTC-B00
Key features

  • Input for two NTC temperature sensors (not included)
  • Two digital inputs
  • Alarm thresholds
  • Sampling and transmission rates are confi gurable
  • Battery powered
  • Long life battery
  • Internal antenna

The DB2-2NTC-B00 is a battery powered ZigBee device which can read at the same time the temperature with the 2 on board NTC inputs and the 2 digital inputs and send them at regular intervals to one of a Gateway of the Digitron products family.
This device may be confi gured to manage alarm thresholds when exceeding maximum or minimum levels of temperature. It is also possible to adjust the sampling and data transmission rate to improve battery life.
This device can perform data transmissions automatically and immediately (regardless of confi gured sampling rate).
in order to signal a status change in one of the two digital inputs.


Technical Specs
General characteristics
Chip Ember EM250
Compatible IEEE 802.15.4 Stack EmberZnet 3.5.x (ZigBee PRO) Modbus/RTU
Device address settable via internal dip-switch
Wall mounting with screws
Cable gland: PG9
RF characteristics
Frequency: 2405 MHz ÷ 2480 MHz
Modulation: DSSS
Nominal transmission power: 2mW (3 dBm)
Reception sensitivity: -95 dBm
Internal antenna gain: 0 dB
Coverage outdoor/indoor: 100m/30m
Supply
AA high energy density lithium battery 3,6V/2000mAh
Battery life: 3 years in case of 1 transmission per minute at 20°C
Thermal sensor input
NTC sensor
103AT type (R25 = 10 KOhm; Beta = 3435K)
Measurement range: -50°C ÷ +100°C
Measurement resolution: 0,1°C
Measurement accuracy: ±0,5°C
Measures are linearized at tenth of degree
Digital inputs
Electronic type not insulated inputs for clean contact
Short circuit current 0,01mA. Use self-cleaning contacts
Connections
Pull out terminals (3,81 mm pitch)
Environment parameters
Operating temperature: -10 ÷ +60°C; <80% U.R. not condensing
Storage temperature: -20 ÷ +70°C; <80% U.R. not condensing
Degree of protection: IP 55
Compliant with 2006/95/EEC, 89/336/EEC, 99/5/EEC directives Reference Norms
ETSI EN 300 328: Radio Compatibility for digitals wide band transmissions
ETSI EN 301 489: Radio Compatibility
EN 61000-6-2: Electromagnetic Compatibility - Emissions
EN 61000-6-3: Electromagnetic Compatibility - Immunity
EN 60950-1: Electric Safety
Download Data Sheet Send Mail for information See DigBee 2