Specifications

16
SmartReader 1
Two-Channel Temperature (Thermistor) Data Logger
The SmartReader 1 data logger is a simple and easy-to-use data logger for monitoring and
recording temperature. Quick and easy to set up, it works right out of the box, logging
temperature readings from its internal, precision-calibrated temperature sensor. For
added versatility, use the extra channel to record temperature (with an ACR thermistor
probe), resistance or switch status.
Order Information
MODEL MEMORY CATALOG #
SR-001 32 KB 01-0024
PRODUCT SPECIFICATIONS
No. of Channels:
Two - One for ambient temperature
- One for temperature (with thermistor probe),
resistance, or switch status
Memory Size:
32 KB
Common Specifications:
See page 15
Software Specifications:
See page 34
Remote & Network Communications:
See page 38
Accessories:
ACR ET Series Temperature Probes or any NTC
thermistor probe
SmartReader 2
Four-Channel Temperature and Relative Humidity Data
Logger
The SmartReader 2 data logger has a built-in temperature sensor, a plug-in rela-
tive humidity sensor and is equipped with two extra channels to connect either
ACR’s temperature/RH probe or thermistor probes. The RH plug-in sensor is
field replaceable so you can always be assured of continuous recording. The
SmartReader 2 is excellent for monitoring “air quality” conditions.
Order Information
MODEL MEMORY CATALOG #
SR-002 32 KB 01-0025
PRODUCT SPECIFICATIONS
No. of Channels:
Four - One for ambient temperature
- One for relative humidity (internal sensor)
- One for relative humidity (external sensor)
- One for temperature, resistance or switch status
Relative Humidity Sensor:
Capacitive thin polymer film
Range:
0 to 95% RH (non-condensing)
Accuracy:
+/- 4% RH from 10 to 90% RH (-20 to 40ºC [-4 to 104ºF])
Resolution:
Better than 0.4% between 25 and 60% RH at 25º C (77ºF)
Response Time:
Adequate ventilation increases the response time which
is approximately 5 minutes in still air
Memory Size:
32 KB
Environmental Conditions:
Like all relative humidity sensors, when exposed to
contaminants and/or extreme environmental conditions,
accuracy degradation could result. For maximum long-
term stability, sensor should not be exposed or subjected
to organic solvents, corrosive agents (strong acids, SO
2
,
H
2
SO
4
, CI
2
, HCl, H
2
S, etc.) and strong bases (compounds
with PH greater than 7). Dust settling on the sensor sur-
face will not affect sensor performance except possibly
to decrease the speed of response.
Common Specifications:
See page 15
Software Specifications:
See page 34
Remote & Network Communications:
See page 38
Accessories:
ACR EH-020A Temperature & RH Probe
ACR ET Series Temperature Probe or any NTC
thermistor probe
FEATURES
• Two channels
• Monitor and record
temperature
• Option to monitor
remote temperature,
resistance or switch
status
• Use with a variety of
different temperature
probes:
- General purpose
- High temperature
- Low temperature
- Waterproof temperature
- Oven temperature
- Skin surface temperature
- Pipe surface temperature
FEATURES
• Four channels
• Monitor and record
temperature and
relative humidity
• Option to monitor
remote tempera-
ture, RH and/or
resistance
• Use with a variety
of different temper-
ature probes (see
list above)
• N.I.S.T. traceable
measurements
• Includes calibration
certificate