ALab™ DHP4-550 LCD Digital 4-Inch Hotplate
Product Detail
The ALab™ DHP4-550 is an LCD digital hotplate with a 4-inch (100 × 100 mm) glass-ceramic plate that heats from RT to 550°C. It has no stirring function; for heating and stirring on the same plate size, see the DMS4-550.
Three heating modes (A rapid, B standard, C stable) suit different samples. The LCD shows the set and actual temperature and the time, the timer runs from 1 min to 99 h 59 min and stops heating at the end of the countdown, and an external PT1000 temperature sensor (accuracy ±0.2°C) controls the liquid temperature.
580°C overheating protection, two independent safety circuits, a settable safety temperature and a "HOT" warning that flashes while the plate is above 50°C, even after the power is switched off, protect the user. A safety lock, a buzzer and an RS232 connector for remote control from a PC are built in.
Why choose the DHP4-550
Specifications General — DHP4-550
| Parameter | Specification |
|---|---|
| Brand | ALab™ by ACS Material |
| Model | DHP4-550 |
| Product type | LCD digital hotplate with 4-inch glass-ceramic plate (no stirring) |
| Work plate dimension | 100 × 100 mm (4 inch) |
| Work plate material | Glass ceramic |
| Temperature display | LCD |
| Heating temperature range | RT to 550°C, increment 1°C |
| Temperature control accuracy (liquid) | ±1°C (<100°C), ±1% (>100°C) |
| Overheating protection | 580°C |
| Temperature display accuracy | 0.1°C |
| External temperature sensor | PT1000 (accuracy ±0.2°C) |
| "HOT" warning | 50°C |
| Data connector | RS232 |
| Protection class | IP21 |
| Timer function | 1 min to 99 h 59 min |
| Power | 430 W |
| Heating output | 410 W |
| Voltage, frequency | 100 to 120 V / 200 to 240 V, 50/60 Hz |
| Dimensions [L × W × H] | 270 × 175 × 108 mm |
| Weight | 1.8 kg |
| Permissible ambient temperature and humidity | 5 to 40°C, 80% RH |
Control and safety
| Function | Detail |
|---|---|
| Heating modes | A: rapid heating, B: standard heating, C: stable heating |
| Timer | 1 min to 99 h 59 min; heating stops at the end of the countdown |
| Overheating protection | Overheating protection at 580°C |
| Two independent safety circuits | Continuous monitoring: on overheating or sensor failure the unit reports an error and stops heating; on a short circuit it cuts the power supply |
| "HOT" warning | When the plate is above 50°C and heating is off, "HOT" flashes on the display, even after the power is switched off |
| Safety temperature | Settable safety temperature limit |
| External temperature control | PT1000 temperature sensor, accuracy ±0.2°C, for control of the liquid temperature |
| Safety lock | Locks the settings against accidental changes during operation |
| Buzzer | Sounds when the unit detects a fault and when the timer countdown ends |
| RS232 data connector | Remote control from a PC |
Order codes ACS Cat. No.
| Model / configuration | ACS Cat. No. |
|---|---|
| DHP4-550 LCD Digital 4-Inch Hotplate | ALDH0100 |
Parent ACS Cat. No.: ALDH010F. Order ACS Cat. No.: ALDH0100.
Where it fits
Frequently asked questions
Does the DHP4-550 stir?
No. The DHP4-550 is a hotplate without a stirring motor. The DMS4-550 combines heating to 550°C with magnetic stirring on the same plate size.
What is the heating range?
From RT to 550°C in 1°C increments, with 580°C overheating protection. The heating output is 410 W.
Can I control the liquid temperature?
Yes. External temperature control is possible with a PT1000 sensor (accuracy ±0.2°C); the control accuracy is ±1°C below 100°C and ±1% above 100°C.
Does it have a timer?
Yes. The timer runs from 1 min to 99 h 59 min; heating stops at the end of the countdown.
What happens when the plate is still hot?
When the plate is above 50°C and heating is off, "HOT" flashes on the display, even after the power is switched off.