3
14. Specifications
CO2 Specification
Measurement Range
0 - 2,000ppm for rated specifications
0 - 10,000ppm output for 4-20mA output
Display Resolution 1ppm at 0~1,000ppm; 10ppm above 1,000ppm
Accuracy
0 - 2,000ppm: ±70ppm or ±5% of reading,
whichever is greater. >2,000ppm: ±7% of reading
Repeatability ±20ppm @400ppm
Pressure
Dependence
0.13% of reading per mmHg
Response Time < 2 minutes for 63% response to step change
SetPoint
RAD-0501 Greenhouse Mode = 1,000ppm
RAD-0501A Ventilation Mode = 1,200ppm
SetPoint Hysteresis ± 200ppm around Target
Sensor Warm-Up Time
< 60 seconds at 72°F (22°C)
Splash Rating
IP54 non-sealed enclosure
Operating Conditions:
Temperature 32°F to 122°F (0°C to 50°C)
Humidity 0 ~ 95% RH non-condensing
Storage Conditions:
Temperature -4°F to 140°F (-20°C to 60 °C)
Power Supply & Relay Output:
Power Supply AC adapter 110/220 VAC (U.S. Only)
AC
Input
Voltage 100 ~ 240 VAC
Frequency 50 / 60 Hz
Power
Requirement
1 W maximum @ 115 VAC 60 Hz
2 W maximum @ 230 VAC 50 Hz
Relay (Piggyback plug)
Peak Current < 5A@ 250 VAC, SPST.
Normally Open.
Analog Output
Linear current 4-20mA = 0-10,000ppm.
RL < 150Ω. Red (+) signal, White ground.
15. Dimensions
16. Error Codes & Troubleshooting
No
LCD
Fault
Icon
Description
(of the fault)
Suggested Actions
1 Er3
The ambient temperature
has exceeded the
temperature range 0°C to
50°C ( 32°F to 122°F)
This error will disappear when the
temperature returns to the range
between 0°C and 50°C (32°F to
122°F).
2 Er4
Inaccurate
measurement
or the sensor has
exceeded its expected life
Unplug the AC adapter and
reconnect it. If Er4 still appears,
contact CO2Meter.com.
3
Er5
Er6
EEPROM System Problem
Unplug the AC adapter and
reconnect it. If Er5 or Er6 still
appears, contact CO2Meter.com.
4 Er8
The accuracy of CO2
sensor may deviate from
the actual concentration.
1. Unplug the AC adapter and
reconnect. If the “Er8” still
appears, recalibrate.
2. Calibrate the unit. If the “Er8” still
appears, contact CO2Meter.com.
5 Er9
Calibration failure caused
by too large a difference
between the calibration
value selected and the
CO2 level read during
calibration.
1. Select the correct calibration
value before calibrating.
2. If Er9 still appears, contact
CO2Meter.com
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