Fluke 1620A DewK Precision Digital Thermometer Hygrometer
$2,000.00
Condition: New – Open Box
1 in stock
Fluke 1620A DewK Digital Thermometer Hygrometer (Display Base Unit Only)
The Fluke 1620A DewK stands as the industry standard for high-precision ambient temperature and relative humidity monitoring across calibration laboratories, marine instrumentation control rooms, and strict industrial processing environments. Engineered by Fluke Calibration, this benchtop or wall-mounted digital thermo-hygrometer offers dual-channel sensor tracking, powerful onboard processing, and extensive network data logging.
Please Note: This listing is for the Fluke 1620A DewK Display Base Unit Only. Detachable sensors (Models 2626-S or 2626-H) must be purchased separately or paired with existing calibrated smart probes to execute measurements.
Model Details
- Brand: Fluke Calibration
- Model Number: 1620A (DewK)
- Manufacturer Part Number (MPN): 1620A
- Product Type: Digital Precision Thermo-Hygrometer Base Unit
Technical Details: Fluke 1620A DewK
| Specification Parameter | Technical Value / Rating |
|---|---|
| Operating Environment Range | 0 °C to 50 °C (32 °F to 122 °F); 0% to 100% RH (non-condensing) |
| Measurement Inputs | 2 channels; detachable, interchangeable smart sensors with self-contained calibration chips |
| Display Resolution | User-selectable up to 0.001 °C/°F and 0.01% RH |
| Data Storage Capacity | 400,000 individual date/time-stamped readings (non-volatile flash memory) |
| Power Requirement | 12 V DC (±10%) from external 100 V to 240 V AC power supply |
| Terminal & Interface Allocations | 1x RJ-45 Ethernet; 1x RS-232 Serial (DB9); 1x 0-12 V DC Alarm Auxiliary Output Port |
| Battery Backup System | Standard 9 V Alkaline battery (maintains continuous internal logging up to 16 hours during AC outages) |
| Display Screen | 240 x 128 graphics monochrome LCD with backlight; 16 pre-defined layout configurations |
| Enclosure Dimensions (H x W x D) | 125 mm x 211 mm x 51 mm (4.9 x 8.3 x 2.0 inches) |
| Net Weight | 0.7 kg (1.5 lbs) base unit without optional accessories |
Main Features
- Dual-Channel Smart Tracking – Supports up to two independent remote or direct-mounted temperature/humidity sensors simultaneously.
- Large Onboard Non-Volatile Memory: Logs years of continuous environmental criteria, storing up to 400,000 date and time stamped data points.
- Advanced Real Time Calculations: No additional telemetry software needed, calculates dew point, heat index, and absolute rates of change.
- Robust Network Integration: Built-in RJ45 Ethernet and RS-232 interface for automated data transfer with LogWare III.
- Fail-Safe Visual & Auxiliary Alarms Configurable visual/audible alarms and dedicated 0 to 12V DC auxiliary output to drive external industrial process control devices.
Technical Part Number Cross-References
- Fluke Calibration / Hart Scientific: 1620A, 1620A-H, 1620A-S
- Farnell / Newark SKU: 2983358, 1620A-H-256
- Alternate Reference IDs: Fluke DewK 1620A Base Unit
Uses
- Metrology & Calibration Laboratories: Master environmental reference node to meet stringent TUR (Test Uncertainty Ratio) reporting
- Industrial Cleanrooms & Semiconductors: Ongoing humidity and ambient temperature mapping for sustained production yields.
- maritime & Vessel adjust Rooms Used by maritime engineers to adjust climate settings for high-sensitivity automation controls, safety relays and crucial electrical switchboards subject to moisture damage.
- Server Rooms & Data Centers: Automated Ethernet tracking for high density thermal monitoring for network infrastructure protection.
Frequently Asked Questions
Does the Fluke 1620A base unit include a sensor probe?
No. The “Fluke 1620A DewK Display Only” model is the standalone base station instrument. To record measurements, it requires the addition of either a standard-accuracy (2626-S) or high-accuracy (2626-H) smart probe.
Can the Fluke 1620A measure two separate areas at once?
Yes. The DewK is built with two independent sensor input ports. By utilizing Fluke extension cables, you can position one sensor up to 100 feet away from the base unit while the second sensor monitors the immediate vicinity.
How long does the internal backup battery last if prime power fails?
The Fluke 1620A uses a standard 9V alkaline battery backup that turns off the heavy graphic LCD screen to save power while maintaining seamless data collection for up to 16 hours. Once line power restores, the screen reactivates and displays all stored data.
What interfaces are standard on the Fluke 1620A base unit?
The base unit features a built-in RJ45 Ethernet port for network telemetry, a standard DB9 RS-232 serial connection for direct PC interface or real-time printer output, and a 0 to 12V DC auxiliary alarm output terminal.
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