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manufacturer of measuring instruments
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Four channel data logger with pulse and two-state inputs

code: U7844

Data logger is designed to record from four binary inputs or from two pulse and two binary inputs.
The recording is performed in a non-volatile electronic memory. The data can be transferred to a PC via USB-C.

Datalogger inputs can be set up for four binary inputs or two binary inputs and two pulse counters.

In case of exceeded set limits alarms are indicated by LED, LCD and acoustically by built-in beeper.

The device includes Traceable calibration certificate with declared metrological traceability of etalons is based on requirements of EN ISO/IEC 17025 standard.

Included in delivery:


Technical data

Value
Measured value Two-state signal
Pulses
BINARY INPUT
Parameters of the voltage contact „L“ level input voltage:< 0,4 V(*);
„H“ level input voltage:> 2 V;
Minimum voltage applicable:0 V;
Maximum voltage applicable:+30 V DC
Parameters of the voltage-free contact Contact resistance in „switched-on“ state:< 10 kOhm;
Contact resistance in the „switched-off“ state:> 300 kOhm;
Contact voltage in the „switched-off“ state:ca 3 V;
Minimum state duration necessary for latching the state:1s
COUNTER INPUT
Counter parameters Range 24 bits (16 777 215), possibility of letting the counter overflow
Maximum pulse frequency configured for voltage input - max. 5kHz
configured for a voltage-free or open-collector transistor - max. 200Hz
GENERAL TECHNICAL DATA
Operating temperature -20 to +60 °C
Channels 4x binary input nebo 2x binary input a 2x counter
Memory 500,000 values in noncyclic logging mode; 350,000 values in cyclic record mode
Recording interval adjustable from 1 s to 24 h
Display and alarm refresh adjustable 1 s, 10 s, 1 min
Recording mode noncyclic - data logging stops after filling the memory
cyclic - after filling memory oldest data is overwritten by new
Real time clock year, leap year, month, day, hour, minute, second
Power Lithium battery 3.6V, size AA
Protection class IP20
Dimensions 61 x 93 x 32 mm
Weight (including batteries) approx. 120 g
Warranty 3 years

Applications:

Aplikace - Zdravotnictví a laboratoře

Healtcare and laboratories - Monitoring of storage areas at temperatures up to -200 °C.

Aplikace - Sklady

Food industry - Monitoring of critical processes according to the HACCP standard with the possibility of prompt notification of unforeseen events that could lead to the degradation of the goods.

Aplikace - Monitorování v průběhu přepravy

Goods transport - Complete temperature monitoring during transport of pharmaceuticals, foodstuffs, flowers, ...

Aplikace - Průmysl

Industry and production - monitoring temperature and humidity in food, pharmaceutical, aerospace etc.

Aplikace - Sklady

Production facilities and warehouses - Monitoring of storage conditions and production processes in the temperature range -200 ° C to + 600 ° C. Sending data to COMET Database or SCADA third-party systems.

Aplikace - Serverovny a datová centra

Meteorology - COMET sensors together with COMET radiationshields are the ideal basis for weather stations for long-term weather, climate and air monitoring.

Aplikace - Serverovny a datová centra

Data centers, server rooms - Temperature and humidity monitoring, data center monitoring, RACK stands, including flood status reports, opening / closing of doors (windows), motion, smoke. SNMP monitoring, remote alarms by email and Syslog.

Aplikace - Automatizace budov a HVAC

Building management - Our instruments which measure temperature, humidity, atmospheric pressure and CO2 are an integral part of these industry-leading solutions.

Features description:

* the features may vary depending on the device type
● accurate measurement of temperature, humidity, dew point, events,
● nonvolatile memory for 500 000 records
● acoustic and 3-colours LEDs alarm
● easy to use software for data analysis on PC
● communication interfaces - USB-C
● rugged design
● long battery life up to 6 years

 
Warranty 3 years Traceable calibration certificate Comet Database Data report Datalogger Temperature sensor Humidity sensorTwo-state inputs2 line LCDInternal memory
 
Alarm SMSAlarmBattery powerIP protection
 
 

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