​iGrow 100 series Sensor Issues 

Outdoor/Indoor Temp/Hum Sensor Troubleshooting

Temperature sensor not registering.

• Check sensor connection wires on the controller to make sure there tight and securely fastened.
• Check connections inside junction box (if one exists), for moisture or corrosion.
• Check the PCB for corrosion, moisture or contamination build up.
• Check the line that leads to that box for cuts or any damage which will affect the sensors readings.
• Check for wire any interference sources (voltage, motors, inverters, etc….)
• Check Sensor Mapping
• Check Calibrated Inputs

Inside Temperature Sensor Failure

•       Probe comes with the 100 series, the temp humidity is an additional cost.
•       Probe (Analog) Temp/Hum(Digital) Mapping is Vital
•       Probe has to be installed at the inside temp sensor location and mapped to analog 1.

“ 1 “ INSIDE TEMP SENSOR ONLY ( for 100 series controllers)

• You can assign an additional sensor to be backup or outside, but only 1 inside.

Sensor Cable Length Digital

• 100ft cable

Sensor Cable Length Analog

• 50ft

Max length for signal quality 150ft

• Must have shielded cable
• Away from electrical current
• Test the reading with portable temp device and just calibrate

Can I install the temperature sensor on a different channel?

• Analog | or Digital sensor locations on the PCB board
• You can as long as you map the sensor to  where you put it..

Temperature Sensor (PROBE) Installation 100 series

• 1 Pair 2 wires Alum color Copper color
• Non polarity wires - does not matter which output
• AIN1 & GND is the location ( 3 screw blue T.B. on PCB  “Inside Temperature Sensor”)

Can I get 2 separate temp readings on a big greenhouse one for each side using 2 temp sensors?

YES

• Average – up to 4 temp locations within the greenhouse, but this will only be the average.
• You can also install a separate temp sensor, but you would connect to the outside temp location and the screen would display “Outside Temp”.

With 2 temp sensors within the greenhouse, can I run 1 furnace off a) sensor and 1 of b) sensor?

• NO – Only the 1000 series can support this.
• Another alternate option is to purchase another 400 to be used as a thermostat.