Specifications

An economic solution for telecom shelter environment monitoring
Small size and good price
Multi-function

NW24 Environment Monitoring Controller for Telecommunication is an economic solution for telecom shelter's remote monitoring management.

It can control the work of two air conditioners as well as the centrifugal fan based on the detected temperature by sensors.

Fire/smog, intruson, water leakage, motion, battery voltage, fan failure can also be monitored.

Real-time records temp, alarm code and work status, upload date via Mini USB port.

Output DC 0 to 10V PWM dry contact signal to centrifugal fan.

Output on/off switch signal to air conditioners.

Alarm signal output.

 

Function:
Program	every work temp. can be programmed
Display	LED display temperature, and alarm code
Auto control	control the work of two air-conditioners and EC fan based on indoor, outdoor temperature.
Manual control	Air-conditioner and EC fan can be controlled by manual
Fan speed control	Fan speed can be adjusted ( half speed to full speed) The EC fans works only the environment satisfies following conditions: 1. no fire alarm 2. outdoor temperature > indoor temperature, and the difference >t09.
Logging	can real-time logging one moth date, interval 15 minutes.
Monitor	two temperature, fire, EC fan failure, AC power off.
Alarm	1 relay output alarm signal
Communication	supply monitor software (installed in PC), upload alarm date via Mini USB port.

 

Technical parameter:
Input voltage	DC 48V
Display	LED display temp., alarm code, parameter code and value Indicate light display work status and alarm
Work ambient temperature	-25°C~+55°C
Work ambient humidity	5%~95%RH
Temperature detect	2 x NTC 103AT, detect range: -40°C ~ 70°C accuracy: ± 1°C compensation value can be programmed
Alarm output relay	1 pcs
Control signal for air-conditioner	Switch signal
Control signal for EC fan	DC 0-10V
Memory capacity	3000pcs

 
Alarm

Code	Definition	Phenomena
E01	High temp.	Indoor temp. ≥ t08
E03	Smog fire alarm (option)	There is a smog fire in shelter
E05	AC power off	AC power failure
E09	EC fan fault	Feedback frequency signal of fan < F-E
E12	Temp. sensor failure	Short or open circuit of temp. sensor
E18	Air-con. has cooling efficiency fault	Indoor temp also raise when air-con work after A01 time