Pulse counter
DB2-PUL-2NTC
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Key features
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The DB2-PUL-2NTC is a battery powered ZigBee device, capable to count pulses emitted from fl ow rate meters (water, gas, electricity,...) and to measure the temperature from both the 2 on board NTC inputs. Pulse counters and temperature samples are sent at regular intervals to a gateway of Digitron products family.
Moreover, if temperature sensors are installed into an hydraulic circuit in the inlet and outlet pipes this device can General characteristicssend the difference between them.
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Technical Specs
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General characteristics
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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 |
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RF characteristics
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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 |
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Supply
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AA high energy density lithium battery 3,6V/2000mAh
Battery life: 2 years in case of 1 transmission per minute at 20°C |
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NTC thermal resistor input
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NTC type resistor
103AT type (R25 = 10 KOhm; Beta = 3435K) Measurement range: -50°C ÷ +110°C Measurement resolution: 0,1°C Measurement accuracy : ±1,0°C Measures are linearized at tenth of degree |
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Digital inputs
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Electronic type not insulated inputs for clean contact
Short circuit current 0,01mA. Use self-cleaning contact |
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Connections
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Pull out terminals (3,81 mm pitch)
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Environment parameters
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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 |
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Compliant with 2006/95/EEC,
89/336/EEC, 99/5/EEC directives
Reference Norms
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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 |
UNI EN ISO 9001:2008
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Organization with certified management system
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Calibration Certificates Accredia