
Series DW-USB Compact USB Data Logger
Specications - Installation and Operating Instructions
Bulletin E-90-CDW
The SERIES DW-USB Compact USB Data Logger allow users to monitor temperature,
humidity, dew point, voltage, current, or carbon monoxide. The user can select the
sampling rate, start time, high/low alarm settings, and temperature unit parameters
with the free downloadable Windows®-based application. Stored data is downloaded
by plugging the module into a PC’s USB port. Alarm status and low battery is indicated
via built-in ashing LED’s. When the protective cap is tted, the data logger resists
moisture to IP67 standards.
LED FLASHING MODES
Windows®is a registered trademark of Microsoft Corporation.
SPECIFICATIONS
Range: DW-USB-1: -31 to 176°F (-35 to 80°C); DW-USB-2: -31 to 176°F (-35 to
80°C), 0 to 100% RH; DW-USB-2-HA: -31 to 176°F (-35 to 80°C), 0 to 100% RH;
DW-USB-3: 0 to 30 VDC; DW-USB-4: 4 to 20 mA; DW-USB-5: 0 to 1000 ppm;
DW-USB-5-LR: 0 to 300 ppm; DW-USB-6: J-type: -202 to 1652°F (-130 to 900°C);
K-type: -328 to 2372°F (-200 to 1300°C); T-type: -328 to 662°F (-200 to 350°C).
Accuracy: DW-USB-1: ±2°F (±1°C); DW-USB-2: ±1°F (±0.5°C), 3% RH; DW-USB-
2-HA: ±0.6°F (±0.3°C), 2% RH; DW-USB-3: ±1%; DW-USB-4: ±1%; DW-USB-5:
±6%; DW-USB-5-LR: ±4%; DW-USB-6: ±1.5°F (±1°C).
Resolution: DW-USB-1: 1°F (0.5°C); DW-USB-2: 1°F (0.5°C), 0.5% RH; DW-USB-
2-HA: 1°F (0.5°C), 0.5% RH; DW-USB-3: 50 mVDC; DW-USB-4: 0.05 mA; DW-
USB-5: 0.5 ppm; DW-USB-5-LR: 0.5 ppm; DW-USB-6: 0.9°F (0.5°C).
Memory Size: 16,382 temperature; 16,382 each temperature and RH; 32,764
readings for voltage, current, and thermocouple; and 32,510 for carbon monoxide.
Sampling Mode: Stop on memory full.
Sampling Rate: Selectable from 10 sec to 12 hrs (DW-USB-1, DW-USB-2, DW-
USB-2-HA), 1 sec to 12 hrs (DW-USB-3, DW-USB-4, DW-USB-5, DW-USB-5-LR:)
and 10 sec to 5 min (DW-USB-6).
Computer Requirements: Compatible with Windows®7, Windows®8, and
Windows®10.
Power Requirements: 3.6V lithium battery.
Housing: ABS plastic blend.
Alarms: Programmable high/low.
Interface: USB port.
Weight: 1.5 oz (43 g).
Agency Approvals: CE, RoHS.
CO SENSOR CAP
TERMINAL BLOCK CAP
VENTED
CLIP
ST
CLIP
Y
X
4-51/64
Ø1-3/32
[27.76]
1-3/64
[26.59]
1-1/16
[26.99]
DW-USB-2, DW-USB-2-HA: Features 2 clearly marked bi-colored LEDs, one for
temperature and one for RH.
(Single ash)
(Parpadeo simple)
Logging, no alarm on channel.
Registrando, sin alarma.
(Double ash)
(Parpadeo doble)
Delayed start.
El Registrado está preparado.
(Triple ash)
(Parpadeo triple)
Memory full, no alarm on last
stored value.
Registrador lleno, sin alarma en
el canal.
(Single ash)
(Parpadeo simple)
Logging, low alarm on channel.
Registrando, alarma baja en el
canal.
(Double ash)
(Parpadeo doble)
Logging, high alarm on channel.
Registrando, alarma alta en el
canal.
(Triple ash)
(Parpadeo triple)
Logger full, alarm on channel.
Registrador lleno, alarma en el
canal.
DW-USB-1: Features an orange problem condition LED and green/red LED for
alarm status.
(Single ash)
(Parpadeo simple)
Logging, no alarm on channel.
Registrando, sin alarma.
(Double ash)
(Parpadeo doble)
Delayed start.
El Registrado está preparado.
(Single ash)
(Parpadeo simple)
Logging, low alarm on channel.
Alarma baja.
(Double ash)
(Parpadeo doble)
Logging, high alarm on channel.
Alarma alta.
(Single/Double ash every
10 sec)
(Parpadeo doble/simple cada
10 seg)
Memory full.
Memoria llena.
(Single ash every 60 sec)
(Parpadeo simple cada 60
seg)
Low battery.
Batería baja.
DWYER INSTRUMENTS, INC.
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A.
Phone: 219/879-8000
Fax: 219/872-9057
www.dwyer-inst.com