Electronic Lead/Lag Controller 2430

Electronic Lead/Lag Controller 2430

Sierra Monitor’s Electronic Lead/Lag Controller 2430 is a microprocessor-based module which performs all heating, ventilating and air conditioning (HVAC) controls and environmental alarm management in remote, above ground telecommunications structures.

A compact, cost-effective solution, the Model 2430 assures a precisely controlled and safe environment and personnel working within the structure. It provides demand logic control for two air conditioning units for heating, cooling, and economizer operation. Lead air conditioner cycle period, lead and lag set points, short cycle delay, and economizer set points are fully adjustable.

The Lead/Lag Controller 2430 is designed to operate on both AC and DC power. This provides the capability to alarm upon loss of commercial AC power and continue to monitor the structure for alarms and operate DC ventilation fans for cooling in the absence of HVAC operation. Since all data is stored in flash memory, power outages do not result in lost data nor is there the need for periodic battery replacement.

Microprocessor-Based Lead/Lag Temperature Control

Fully adjust lead air conditioner cycle period, lead and lag set points, short cycle delay, and economizer set points

Operator-Friendly Front Panel

Display lead and lag set points for both cooling and heating, high and low temperature alarm set points and status of alarms and controls with conveniently labeled keys

Slim Profile

Affords easy wall mounting with minimum protrusion from the wall and fully access the front panel for ease of field wiring

System
Power

120 VAC, 50/60 Hz

220 VAC, 50/60 Hz

12-50 VDC

5 Watts nominal

Microprocessor

PIC Controller 16F877

8 Kbytes EEPROM

256 bytes EPROM

Output Relay Rating
2350 Four SPDT 6 Amp non-inducting
2360 Five SPDT 6 Amp non-inducting
Environmental
Temperature

Operating Range: 4o to 122oF (-20o to 50oC)

Storage Range: -40o to 122oF (-40o to 50oC)

Humidity

0 – 95% RH

Audible Alarm
2350

68 dB at 2900 Hz

2360

68 dB at 2900 Hz

Front Panel
Display

LCD alphanumeric (2 rows x 16 characters)

Keypad

6 keys for set points, alarms, controls

Size
2350

4.5 x 8.9 x 1.6 in. (11.4 x 22.5 x 4.1 cm)

2360

4.5 x 8.9 x 1.6 in. (11.4 x 22.5 x 4.1 cm)

Sensors
Temperature

Range: 0o to 120oF (-15o to 49oC)

Accuracy: +/- 1oF (from 50o to 100oF)

Humidity (Optional)

Range: 0-100% Relative Humidity

Accuracy: +/- 2% Relative Humidty

Weight
2350

3 lb. (1.3 Kg)

2360

3 lb. (1.3 Kg)