Temperature and Humidity Indicator with Buzzer Alarm – HTM-3000-W
₹6,825 – ₹7,520
Prices are inclusive of Delivery Charges.
HTM-3000-W-I – T + RH Indicator with Alarms and Integrated sensor – Wall mounting type
HTM-3000-W-E – T + RH Indicator with Alarms and external sensor model HTS-440 with 2-meter cable – Wall mounting type.
Libratherm offers a microcontroller-based (T + Rh) indicator to monitor ambient (T + Rh) values in offices, stores, warehouses, shop floors, or small factory areas. In addition to indicating values, this Hygro-Thermometer provides the capability to set high and low limits and to view the maximum and minimum variations in T + Rh values on demand. If T or RH values deviate from the set levels, the internal beeper will sound. The beeper can be snoozed or reset using the keyboard. Even in low ambient light, bright red and green LED displays indicate temperature and humidity values. HTM-3000 operates on a 24VDC power adapter.
Key Features:
- Microcontroller based design.
- Elegant appearance, easy to operate and compact in size.
- Highly accurate and sturdy in operation.
- Dual display for simultaneous indication of T and RH.
- High / Low Audible alarms and Max/Min display.
- Internal or External sensor as per user’s choice.
Technical Specifications
| Parameter | Description |
|---|---|
| T + RH Sensor elements | For Temperature – Pt-100 / class A element For Relative humidity, a capacitive sensor. Both sensors are embedded in the SS stem with a microporous bronze air filter. Model HTS-440 |
| Temperature Calibration Range | -40.0 to 100.0°C |
| Temperature Accuracy | Better than +/- 0.3 °C |
| %RH Calibration Range | 0.0 to 100.0 %RH |
| RH Accuracy | Better than +/-3 %RH @ 25.0°C |
| Temperature/RH Usable Range (Refer to the Chart1 given below) | 0 to 50°C/0 to 100%RH (Ideal Usable Range) 0 to 60°C/0 to 90%RH -20 to 75°C/0 to 70%RH -40 to 85°C/0 to 50%RH |
| Temperature Compensation | Automatic software compensation for accurate display of %RH value. |
| Display for T and %RH | 4-digit each – 0.3” red/green seven-segment LED. |
| Power Supply | 24VDC @ 150mA (+/-10%) – through the external adapter. |
| High/Low Alarms | Settable through the keyboard. Audible beeper with delay, Snooze and Reset facility. |
| Serial Interface (Optional) | MODBUS RTU over RS-485 |
| Keyboard | A membrane keyboard is provided to program the high/low set points and other functions. |
| Enclosure (Size) | ABS plastic (120 x 80 x 55) mm. |
| 24VDC Adapter (Optional) | A 24-VDC adapter working on 90-250VAC will be supplied along with an HTM-3000 as per customer requirements. |
| Mounting | Wall mounting clamps are provided. Terminals are provided for power supply and retransmission output connections, and cable entry is through suitable-size glands. |
| Storage and Operating Conditions | Maximum Temperature of 60°C @ 90%Rh (Non-Condensing) |
Ordering Information
| Model | Product Description | Part No. |
|---|---|---|
| HTM-3000-W-I | T + RH Indicator with Alarms and Integrated sensor HTS-440 | 3210-1 |
| HTM-3000-W-I | T + RH Indicator with Alarms and Integrated sensor HTS-440 + RS-485 interface | 3210-2 |
| HTM-3000-W-E | T + RH Indicator with Alarms and external sensor model HTS-440 with 2-meter cable | 3210-3 |
| HTM-3000-W-E | T + RH Indicator with Alarms and external sensor model HTS-440 with 2-meter cable + RS-485 interface | 3210-4 |
