Chapter 6: Reference
HOBO U30 Remote Monitoring System User’s Guide
57
Chapter 6:
Reference
This chapter discusses the following reference topics:
•
Detailed specifications
•
Supported Smart Sensors and Accessories
•
U30 Accessories
•
Warranty
•
Returns
•
Repair Policy
•
Contacting Technical Support
Detailed specifications
HOBO U30 Remote Monitoring System
Normal Operating Range
-20 to 40°C (-4 to 104°F)
Extended Operating Range -40 to 60°C (-40 to 140°F) Note: The GSM
radio module will not communicate below -
30°C (-22°F)
Sensor Inputs
5 standard; option to expand to 10
Smart Sensor Compatibility See list of supported Smart Sensors on
page 60.
Data Channels
Maximum of 15 (some sensors use more
than one data channel; see sensor manual
for details).
Expansion Slot
One expansion slot is available for factory-
installed expansion port. Check
www.onsetcomp.com for the latest list of
options.
Local Communication
Full Speed USB via USB mini-B connector
Dimensions
17.8 H x 11.7 D x 19.3 W cm (7.0 H x 4 .6
D x 7.6 W inches)
Weight
2 kg (4 lbs 10 oz)
Chapter 6: Reference
58
HOBO U30 Remote Monitoring System User’s Guide
HOBO U30 Remote Monitoring System
Materials
Outer Enclosure: ABS blend with stainless
steel hinge pins and bronze inserts
Inner Enclosure: Polycarbonate with
bronze inserts
U-Bolts: Steel with zinc dichromate finish
Gaskets: Silicone rubber
Cable entry channel: EPDM rubber
Cable entry bars: Aluminum with ABS
plastic thumb screws
Data Storage Memory
Nonvolatile flash data storage, 512K bytes
local storage
Memory Modes
Stop when full, wrap around when full
Operational Indicators
Up to seven (depending upon options)
status lights provide basic diagnostics
Logging Interval
1 second to 18 hours, user-specified
interval
Battery Type
4 Volt, 10 AHr, Rechargeable sealed lead-
acid
Rechargeable Battery
Service Life
Typical 3–5 years depending upon
conditions of use. Operation within the
extended operating range (but outside the
normal range) will reduce battery service
life.
Time Accuracy
0 to 2 seconds for the first data point and
±5 seconds per week at 25°C (77°F)
Environmental Rating
Weatherproof enclosure, tested to NEMA
6. (Requires proper installation of cable
channel system).
Mounting
3.8 cm (1.5 inch) mast or wall mount
Enclosure Access
Hinged door secured by two latches with
eyelets for securing with user-supplied
padlocks
Wireless Radio
Quad-Band GSM 850/900/1800/1900 MHz
GSM Antenna
Internal Quad-Band
Antenna Connector
Reverse Polarity SMA
Alarm notification latency
Logging interval plus 2–4 minutes (typical).
Onset is not responsible for failed
connections or undelivered mail/text
messages.
