Specifications

29
ACR-205
FEATURES
• Five channels to
monitor and record:
- Temperature
- Relative Humidity
- Carbon Dioxide
- And other gases
• Choose from a vari-
ety of gas sensors
• Built-in display and
data logger
• Accessories and
software included
PRODUCT SPECIFICATIONS
Size:
214 mm x 152 mm x 55 mm (8.44" x 6.0" x 2.18")
Weight:
1.32 kg (2.91 lb)
Case Material:
Powder painted aluminum
Mounting:
Handheld, desk or wall mount
Operating Limits:
0 to 50°C (32 to 122°F) and 0 to 100% RH (non-
condensing)
Clock Accuracy:
+/- 2 seconds per day
Battery (in logger):
3.6 volt Lithium
Battery (in monitor):
Integral sealed lead acid
Memory Size:
128 KB (87,000 readings)
Sampling Methods:
1. Continuous (First-in, First-out)
2. Stop when full (Fill-then-stop)
Sampling Rates:
User selectable from 8 seconds to once every 8 hours
Resolution:
12-bit (1 part in 4096)
PC Requirements:
IBM PC or 100% compatible running Windows® 3.1,
'95, '98, 2000, Me, NT or XP with at least 2 MB RAM, 2
MB of hard drive disk space and one free serial port
Software Requirements:
TrendReader® Standard (included - see page 34 for
details)
Accessories:
Carrying case and interface cable (included)
SENSOR SPECIFICATIONS
Temperature Sensor:
Type: NTC Thermistor
Range: 0 to 50°C (32 to 122°F)
Accuracy: +/- 0.5°C @ 25°C (+/- 0.9°F @ 77 °F)
Relative Humidity Sensor:
Type: Thin film capacitance
Range: 0 to 100% RH
Accuracy: +/- 2% RH
CO
2
Sensor:
Type: NDIR
Range: 0 to 5,000 ppm (standard)
Accuracy: +/- 20 ppm (typical)
CO Sensor:
Type: Electrochemical
Range: 0 to 50 ppm
Accuracy: < 2% per month in clean air
NO
2
Sensor:
Type: Electrochemical
Range: 0 to 5 ppm
Accuracy: < 3% @ 3 months
Other Gas Sensors (Range, Resolution):
O
2
(0 - 25.0% Volume, 0.2% Volume)
NH
3
(0 - 100 ppm, 1 ppm)
Cl
2
(0 - 5.0 ppm, 0.02 ppm)
ClO
2
(0 - 1.0 ppm, 0.02 ppm)
F
2
(0 - 1.0 ppm, 0.02 ppm)
H
2
(0 - 4000 ppm, <20 ppm)
HCl (0 - 30 ppm, 0.5 ppm)
HCN (0 - 30 ppm, 0.3 ppm)
H
2
S (0 - 50 ppm, 0.05 ppm)
NO (0 - 100 ppm, 0.1 ppm)
O
3
(0 - 1.00 ppm, 0.02 ppm)
SO
3
(0 - 20 ppm, 0.1 ppm)
With a built-in display and data logger, the ACR-205 provides the
user with a reliable and accurate method of evaluating indoor air
quality by measuring and recording temperature, relative humidity,
carbon dioxide, and one or two other gases at the same time. These
other gases can include: carbon monoxide (CO), nitrogen dioxide
(NO
2
), oxygen (O
2
), ammonia (NH
3
), chlorine (Cl
2
), chlorine diox-
ide (ClO
2
), fluorine (F
2
), hydrogen (H), hydrogen chloride (HCl),
hydrogen cyanide (HCN), hydrogen sulphide (H
2
S), nitric oxide
(NO), ozone (O
3
), or sulphur dioxide (SO
2
).
Order Information
MODEL CONFIGURATION CATALOG #
ACR-205 Temperature, RH, CO
2
and 2 spare channels 01-0337
ACR-205-4 Temperature, RH, CO
2
, CO and 1 spare channel 01-0332
ACR-205-5 Temperature, RH, CO
2
, CO and NO
2
01-0333
Five-Channel Multi-Gas Monitor