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ThermaViewer > Specifications
ThermaViewer for Refrigerators/Freezers
Features:
- Stores and Displays temperature history
- Two digital sensors w 20 foot cables
- Large LCD display shows temperature chart
- Zooms out to show one year of temperatures
- Trace mode highlights individual temperatures
- Scrolls through previous temperatures
- Serial port to download data
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Specifications:
- 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
- Thermistor sensor on 20 foot 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: Green Light indicates AC power present
- Sample Interval User selectable: 15 sec - 60 min
- Data Storage Technique: Battery Backed-Up SRAM
- On Board RAM: 256k
- 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 to -80 °C
- Relative Humidity Range: ± 2.5%, 5% to 95% Noncondensing
- Calibration-Optional NIST traceable.
- Characterization: 3 pt table accessible through 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.
- Via onboard menu system.
- Relay: Dry contact, normally open (N/O) 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.
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PDF version of Specifications
1 Accuracy of sensor: ±1.0° at 25°C (typical)
1.5°C (typically) from –25°C to +100°C.
Specified –40°C to +100°C, Operation to 150°C
Temperature Error TA = 25°C 1.0 3.0 °C
–25°C < TA < +100°C1 1.5 4.0 °C
–40°C < TA < –25°C1 2.0 5.0 °C
Temperature Linearity 0.5 °C
Long-Term Stability 1000 Hours at 125°C .5 °C
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