1-6ton Capacity Load Limiter for Building Hoist/Construction
Elevator with LCD Display for Overload Protection
Product Introduction:
The overload limiter is a safeguarding device, which is specially
designed for buidling hoist/construction elevator. The overload
limiter can make alarm with sound and light, protecting the
building hoist/construction elevator from being overloaded.
Technical Patrameters
| Item | Parameter | Item | Parameter |
| Display mode | 6digit LCD backlight display | Rated load | 1-6t |
| Working temperature | -20~60℃ | Sensor working voltage | DC5-12V |
| Operating humidity | 95% | Sensitivity of the sensor | 1.0000Mv/v |
| Comprehensive error | ≤1%F.S | Installation | Slot type |
| Alarm output | AC250V/7A | Action error | ≤1%F.S |
| Buzzer | ≥90dB | | |
| Overload early warning | ≥ 95% of the rated weight(resettable); Relay status: coil power-off; normally-closed contact on; Buzzer status: intermittent ringing (one second with two seconds
interval) |
| Overload alarm | ≥ one second power-off (resettable) when 100% of the rated weight ; Relay status: coil is powered, normally-closed contact is off; Buzzer status: rapid ringing for two seconds. |
| Instant alarm | ≥ at 105% of the rated weight (immediate power off); Relay status: coil is powered, normally-closed contact is off |
| Alarm release | Alarm relieves automatically when the load is less than rated
weight. |
Sensor installation
Product Features:
1. Operation language can be set as English or Chinese;
2. Standard slot installation, the shell is of ABS fire-resistance
material,
3. High accuracy: Controller's measurement accuracy is better than
1%, which is much better than analog singal indicator;
4. Display: 6 digit LCD backlight display, 000.00-999.99, the
limiter can acheive high accuracy weighing results;
5. With built-in battery, the overload limiter can work up to
8hours without power, and can recharge itself automatically once
the power is on, which ensures the safe operation of the building
hoist/construction elevator when the door is open;
6. Wide voltage range: AC110-440V, suitable for 99% of the
construction site, which is more suitable than tranditional
indicator
7. Dual way normally closed contact for power cut-off;the overload
limiter can also be connected to extra buzzer or display;
8. Supportive to RS232/485 communications, can be connected with
monitor screen or PC;
9. Supportive to 0-5V, 4-20mA analog output;
10. Easy debugging, just press one button to correct all the
weighing date without actual weights;
