ySpecifications for TDVDR-02

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Home > Hygrometer > Specifications

Temperature Monitoring with Thermistor& RH sensors

Features:

Stores and Displays temperature history.
Two thermistor sensors w 20 foot cables.
Large LCD display shows temperature chart.
Zooms out to show months of temperature history.
Trace mode to highlight temperatures.
Scrolls through previous temperatures.
Serial port to download to PC.

Specifications:

Size 8 3/8” x 5” x 1 3/8"
Display: Various user selectable graphic presentations.
Display Resolution: .1 Degree on LCD display .0001 on PC
sensor type: Thermistor sensor on 20’ cable
LCD Size: 2.5" x 4.5" Graphic Display.
LCD Pixels: 240 Horizontal, 128 Vertical.
LCD Temperatures: 32°F to 122°F operating -4°F to 154°F non-operating.
LED: yes" Green – indicates AC power present
Sample Interval: User selectable: 10 sec - 24 hrs
Data Storage Technique: Battery Backed-Up SRAM
On Board RAM: 512k
Data Stored: 80,000 samples per channel.
Number of Channels for temperature only sensors 2
Sensor Temperature Range:0.3 °C thermistor sensors. -20 °C - 85 °C
Relative Humidity Range: ±2.5%, 5% to 95% Noncondensing
Calibration Optional NIST traceable.
Characterization: On-board one point table accessed via menu system.
Power: 12vac/dc 50/60hz (wall transformer) with emergency 9vdc backup.
Battery Backup: 48 hours with auto sleep mode on.
Output to PC: RS 232 (Com port) via custom cable (DB9 to audio style plug).
PC Software: TView - Include automatic and batch downloading. Site license.
Indicators: LCD & LED.
Controls: Seven buttons on membrane switch.
User Settings: Via onboard menu system.
Relay: Passive (dry contact) 2 terminal clamp <30 volts, (fused for .5 amp).
Alarm Conditions: min, max, rate of change of temperature.
Weight of display unit: 1 lb.
Shipping weight: 4.5 lbs w power adaptor, sensors, cables, battery, & guide.

Operating Temperature	Typical Thermometric Drift
	10 Months	100 months
0°C 25°C 100°C	<0.01°C <0.01°C 0.20°C	<0.01°C <0.02°C 0.32°C

Stability YSI thermistors are chemically stable and not significantly affected by aging or exposure to strong nuclear radiation. The table above shows typical stability for a representative thermistor.

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