Hobo U23-001 Manual

HOBO® Pro v2 (U23-00x) Manual
HOBO Pro v2 U23-001 shown
HOBO Pro v2 Logger
Models: U23-001
U23-002
U23-003
U23-004
Included Items:
• Clamp and mounting screws
• UV protective cap
Required Items:
• Coupler (COUPLER2-E) with
USB Optic Base Station (BASE-
U-4) or HOBO Waterproof
Shuttle (U-DTW-1)
• HOBOware Pro 2.2.1 or later
Accessories:
• RH sensor replacement kit for
U23-001 (HUM-RHPCB-1)
• RH sensor replacement kit for
U23-002 (HUM-RHPCB-2)
• Replacement cable/sensor for
U23-002 (CABLE-U23-002)
• Replacement UV protective
caps (U23-CAP)
10694-M MAN-U23
The HOBO Pro v2 logger's environmentally rugged case is designed for years of reliable use
in outdoor applications. It has enough memory to record over 42,000 12-bit measurements.
The U23-001 and U23-002 models also feature user-replaceable RH sensors.
The logger uses an optical USB communications interface (via a compatible shuttle or base
station) for launching and reading out the logger. The optical interface allows the logger to
be offloaded without compromising the electronics. The USB compatibility allows for easy
setup and fast downloads.
Specifications
Temperature Sensor
Operation Range
Accuracy
Resolution
Response Time
(Typical to 90%)
Stability (Drift)
Relative Humidity Sensor (U23-001, U23-002 only)
Operation Range
Accuracy
Resolution
Response Time
(Typical to 90%)
Stability (Drift)
Logger
Operation Range
Real-time Clock
Battery
Battery Life (Typical Use)
Memory (Non-Volatile)
Materials
Internal sensor: -40 to 70°C (-40 to 158°F)
U23-002 external temperature sensor: -40 to 70°C (-40 to 158°F)
U23-003 and U23-004 external sensors: -40 to 100°C (-40 to
212°F), with tip and cable immersion in fresh water up to 50°C
(122°F) for one year
±0.21°C from 0° to 50°C (±0.38°F from 32° to 122°F); see Plot A
0.02°C at 25°C (0.04°F at 77°F); see Plot A
U23-001 internal sensor: 40 minutes in air moving 1 m/sec
U23-002 external temperature sensor: 5 minutes in air moving
1 m/sec
U23-003 and U23-004 external sensors: 3 minutes in air moving
1 m/sec; 30 seconds in stirred water
< 0.1°C (0.18°F) per year
0 to 100% RH, -40° to 70°C (-40° to 158°F)
Exposure to conditions below -20°C (-4°F) or above 95% RH may
temporarily increase the maximum RH sensor error by an
additional 1%
±2.5% from 10% to 90% RH (typical), to a maximum of ±3.5%
including hysteresis. See Plot B for full range.
0.03%
U23-001: 40 minute in air moving 1 m/sec with protective cap
U23-002: 5 minutes in air moving 1 m/sec with protective cap
<1% per year typical
-40° to 70°C (-40° to 158°F)
±1 minute per month 0° to 50°C (32° to 122°F)
1/2 AA, 3.6 Volt lithium, user-replaceable (HP-B)
3 years with 1 minute or greater logging interval
64K bytes memory (approx. 21,000 temperature and RH
measurements)
All models: ASA styrene polymer housing and mounting clamp;
polypropylene protective cap; Buna-N o-ring(s); U23-001, U23-002
only: ASA styrene polymer RH sensor cap; modified hydrophobic
polyethersulfone membrane