Vaisala DL2000 Temperature and Humidity Data Loggers

Features

  • Industry-leading temperature and relative humidity measurement precision
  • High accuracy, adjustable timebased digital recording
  • Printed reports for any time period
  • 10-year battery
  • Ability to perform validation and continuous monitoring with the same model
  • Traceable to SI units through national metrology institutes
  • Superior alternative to chart recorders and hard-wired systems
  • Integrated high-accuracy RH sensor
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Dpstar is a leading supplier of environmental measurement sensors for temperature, relative humidity, pressure, dew point, CO2, and other environmental condition monitoring for industrial process application and research. Since the ’90s, we earned a reputation as a trusted partner to our clients through our commitment and dedication. We are an authorized distributor and supplier of measuring sensors solutions from renowned manufacturers Vaisala. Vaisala is a global leader in environmental and industrial measurement. Building on 80 years of experience, Vaisala provides observations for a better world. Vaisala is a reliable partner for customers around the world, offering a comprehensive range of innovative observation and measurement products and services.

Vaisala’s 2000 series of data loggers are designed to provide high accuracy measurements for temperature, relative humidity and an analog sensor of your choice. The 2000 logger combines internal temperature and RH sensors with optional external channels for either current or voltage inputs for recording parameters such as differential pressure, CO2, level, particles, or conductivity. The 2000 logger can also include a Boolean channel for door switches or alarm contacts. The 2000 logger includes calibrations traceable to SI units through national metrology institutes. 1)

1) The measurement results are traceable to the international system of units (SI) through national metrology institutes (NIST USA, MIKES Finland, or equivalent) or ISO/IEC 17025 accredited calibration laboratories.

Ideal for use in standalone or networked applications, the 2000 data logger connects directly to a PC with USB, or installs to an existing network via Ethernet, Power over Ethernet, or WiFi. Each data logger contains a 10-year battery and onboard memory for recording at the point of measurement. With autonomous power and recording capacity, data is immune to network and power interruptions. The DL2000 data loggers can be used with Vaisala software, either viewLinc or vLog, to download, display, and analyze environmental data. The viewLinc the monitoring system provides 24/7 multi‑stage alarm notification, remote, real-time monitoring, and gap-free data. The vLog software is a simple solution for validation/ mapping applications. The measurement results are traceable to the international system of units (SI) through national metrology institutes (NIST USA, MIKES Finland, or equivalent) or ISO/IEC 17025 accredited calibration laboratories. All reports are customizable and can be exported to spreadsheets and PDF to provide records that meet the requirements of 21 CFR Part 11 and Annex 11.

Key Benefits

  • Battery-powered with large onboard memory
  • Validate & monitor with the same device
  • Accurate, stable measurements

Specification

General
Size 85 × 59 × 26 mm (3.4 × 2.3 × 1 in)
Weight 76 g (2.7 oz.)
Interfaces RS-232 serial, USB, WiFi, Ethernet and Power over Ethernet (vNet)
Mounting 3M Dual Lock™ fasteners
Power source Internal 10-year lithium battery (Battery life specified at +23 °C with sample interval of 1 min or longer)
Internal clock Accuracy ±1 min/month at -25 °C … +70 °C (-13 … +158 °F)
Electromagnetic compatibility FCC Part 15 and CE
EN 50581:2012
EN 55032:2012/AC:2013 Class B
EN 61326-1:2013
RoHS compliance 2011/65/EU
PC Software
Monitoring, alarming, and reporting viewLinc
Validation/mapping GxP environments vLog VL for validated
vLog SP for non-validated
Adding loggers to an existing OPCcompatible monitoring system OPC Server
Channel Configuration and Recording Span
Model Channel Types
CH 1 CH 2 CH 3 CH 4
2000-20R T RH
2000-3CR T RH 4 … 20 mA
2000-35R T RH 0 … 5 VDC
2000-3AR T RH 0 … 10 VDC
2000-4BR T RH Boolean Boolean
Number of Channels Enabled1)
Sample Interval 1 2 3 4
10 seconds 14.1 days 7.1 days 4.7 days 3.5 days
1 minute 2.8 months 1.4 months 23.8 days 21.2 days
5 minutes 1.2 years 7.1 months 4.7 months 3.5 months
15 minutes 3.5 years 1.7 years 1.2 years 10.6 months
1 hour 13.9 years 7.0 years 4.6 years 3.5 years
1) Temperature channel must be enabled when the RH channel is enabled
Memory
Sample capacity 122 197 12-bit samples
Memory type Non-volatile EEPROM
Memory modes User-selectable wrap (FIFO) or stop when memory is full. User-selectable start and stop times.
Sampling rates User-selectable from once every 10 seconds to once a day.
Internal Sensors
Internal Temperature Sensor
Calibrated measurement range1) -25 … +70 °C (-13 … +158 °F)
Operating range -35 … +85 °C (-31 … +185 °F)
Initial accuracy2)
± 0.10 °C over +20 °C … +30 °C (± 0.18 °F over +68 °F … +86 °F)
± 0.20 °C over -25 °C … +70 °C (± 0.36 °F over -13 °F … +158 °F)
One Year Accuracy3)
± 0.15 °C over +20 °C … +30 °C (± 0.27 °F over +68 °F … +86 °F)
± 0.25 °C over -25 °C … +70 °C (± 0.45 °F over -13 °F … +158 °F)
Resolution 0.02 °C at +25 °C (0.04 °F at +77 °F)
Internal RH Sensor
Calibrated measurement range1) 45 %RH at +10 °C (+50 °F)
10 … 80 %RH at +25 °C (+77 °F)
45 %RH at +45 °C (+113 °F)
Operating range 0 … 100 %RH (non-condensing)
Initial accuracy2) ± 1 %RH over 10 … 80 %RH at
+20 … +30 °C (+68 … +86 °F)
± 1.5 %RH over 80 … 90 %RH at
+20 … +30 °C (+68 … +86 °F)
± 2 %RH over 10 … 90 %RH at
-20 … +70 °C (-4 … +158 °F)
One year accuracy3) ± 2 %RH over 10 … 90 %RH at
+20 … +30 °C (+68 … +86 °F)
± 3 %RH over 10 … 90 %RH at
-20 … +70 °C (-4 … +158 °F)
Resolution 0.05 %RH
1) Custom calibration points available upon request including full ICH coverage.
2) Initial accuracy includes all known influence quantities present at the time of calibration including calibration uncertainty, mathematical fit, data logger resolution, hysteresis and reproducibility.
3) One Year Accuracy includes all known influence quantities present during the operation of a data logger over the course of one year including Initial Accuracy and Long Term Drift. Not included is any drift related to atypical contamination or misuse.
Current Loop and Voltage Inputs
Input Type Current Loop Analog Voltage
Available ranges 0 … 22 mA 0 … 5 VDC, 0 … 10 VDC
Resolution 5.5 μA 0.025 % F.S.
Accuracy ±0.15 % F.S. at +25 °C
(+77 °F)		 ±0.15 % F.S. at +25 °C
(+77 °F)
Input impedances 75 Ω1) >1 MΩ
Isolation One common per logger One common per logger
Overload protection 40 mA max. (reverse-polarity protected) ±24 VDC max. (reverse-polarity protected)
1) Termination resistance plus approximately 0.4 volt drop through a protection diode.

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