Series DL7 Differential
Pressure Data Logger
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| Also Measures and Logs Temperature,
Self-Powered, 2-channel, Compact |
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 Monitor and Record low
differential pressures and temperature with the model DL7 Differential
Pressure Data Logger. Unit includes an onboard thermistor for
ambient temperature measurement. Sampling rates are user selectable
from 0.04 seconds to 8 hours with First-in first-out or Fill-then-stop
sampling options. Loggers can store up to 21,500 readings and
operate totally independently from any external power supply
with built-in lithium battery. Use Model DL200 Windows™ software
(sold separately) to quickly program the logger or upload data
to a computer. The series DL7 logger is ideal for monitoring
air duct velocity, testing and balancing HVAC systems, or verifying
room pressure.
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| Specifications: |
No. of Channels: Two; internal thermistor,
and a differential pressure sensor.
Internal Thermistor Range: -40 to 158°F (-40 to 70°C).
Compensated Temperature Range: 32 to 158°F (0 to 70°C).
Memory Size: 21,500 readings.
Accuracy: ±0.05" w.c.
Thermal Accuracy: ±0.5% FS.
Clock Accuracy:
±2 sec/day plus one sampling interval.
Resolution: ±0.01" w.c.
Internal Thermistor Resolution: 0.7°F (0.4°C), R25 value equal
to 10,000Ω [10kΩ @ 25°C (77°F)].
Resolution: 12 bits( 1 in 4096).
Nonlinearity: ±0.05% FS (BFSL).
Hysteresis and Repeatability: ±0.05% FS.
Drift: ±0.5% FS/yr.
Sampling Methods: Continuous (first-in, first-out: not available from
40 ms to 8 sec.), Stop when full (fill-then-stop), or delayed start.
Sampling Rates: Selectable from 0.04 seconds to 8 hours.
Ambient Operating Temperature/RH: -40 to 158°F (-40 to 70°C),
0 to 95% RH, non-condensing.
Connection: Two 1/8" I.D. permanent protective tubing.
Computer Requirements: IBM compatible 386 or above and Windows™ 3.1
or later with 2MB RAM and 2MB hard drive disk space, one serial port.
Service: Dry air and noncorrosive gases.
Max. Pressure Rating: 5 x rated pressure.
Power Requirement: Built-in 3.6V Lithium battery.
Power Consumption: 5-10 µA.
Housing Material: Noryl™.
Weight: 4 oz (110 g).
Agency Approvals: CE. |
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| Popular Models: |
| Model
Number |
Pressure
Range |
| DL70 |
±0.5" w.c. (1.2 mbar) |
| DL71 |
±1" w.c. (2.5 mbar) |
| DL72 |
±2.5" w.c. (6.2 mbar) |
| DL75 |
±5" w.c. (12.4 mbar) |
| DL710 |
±10" w.c. (24.9 mbar) |
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| Accessories: |
| Model
Number |
Pressure
Range |
| DL200 |
Windows Software and Connecting Cable |
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