Pressure data logger: Series DL7 DWYER

Monitor and Record low differential pressures and temperature with the model DL7 Differential Pressure Data Logger

Application

Record temp and room pressures
Ideal for monitoring air duct velocity,
Hospital Isolation Wards
Pharmaceutical, Manufacturing
Clean Rooms, Research Labs

DL7.i dl7_iom

(+84) 903 999 357

Measures and Logs Temperature, Self-Powered, 2-Channel, Compact

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Specification

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. (up to 2" range); ±0.1 w.c. (5" and 10" range).
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:	4X rated pressure.
Power Requirement:	3.6 V TL5134 lithium metal battery, internal, factory replaceable.
Power Consumption:	5-10 µA.
Housing Material:	PPE & PS (polyphenylene ether & polystyrene).
Weight:	4 oz (110 g).
Agency Approvals:	CE.