Features
Up to 4 physical inputs - 2x TERMINALS + 2x MiniDin
Removable inputs allow connection of:
- Sensors with voltage output (range 0-10 V; accuracy ±10 mV)
- Sensors with current output (range 0-20 mA; accuracy ±20 µA)
- Devices with dual-state output (potential-free contact or 0-30 V voltage signal); can be applied to input 3 and 4
- Devices with pulse signal (potential-free contact or 0-30 V voltage signal); can be applied to input 4
- Pt1000 temperature probes with built-in configuration memory (xxx/M series)
- Temperature/relative humidity probes with digital output - DigiS/M, DigiL/M, DIGIH/M
- Probes are interchangeable without calibration to a specific device and independently of cable length. Cable length can be 1, 2, 5, 10, 15 meters
- Internal CO2 sensor with range 0 to 2000 ppm (custom range 0 to 10,000 ppm)
Evaluation of up to 16 variables
Up to 16 variables can be calculated from the four connected probes/sensors. This is the sum of the measured and calculated values. The calculated values can be an additional expression of humidity: dew point temperature, absolute humidity, specific humidity, mixing ratio, specific enthalpy. It can also be the result of conversions between channels, for example the difference of two connected temperature probes.
The measured values are stored in the internal non-volatile memory. The memory capacity is up to 1 million values. The recording mode can be set as non-cyclic, when the recording stops after filling the memory, or cyclic, when after filling the memory the oldest stored values are overwritten with the new ones.
The measured values are displayed on the display with backlight option and the possibility of changing the size of the display digits
Power supply
Multilogger can be operated with an AC adapter or with rechargeable batteries with charging capacity. The batteries are always part of the device (you can also use standard AA alkaline batteries). The batteries power the device for several months.
While using the AC adapter, the batteries provide backup operations and allow recording and measurement during a power failure. Thanks to the Ethernet output, the device reports the fault via an e-mail message.
Alarm limits and alarm indication
It is possible to set two independent alarm limits for each channel (i.e. measured or calculated value).
Alarm signaling can be acoustic (built-in buzzer), optical, sending an alert by e-mail or an alarm output. The alarm output is for connecting an external visual or audio alarm.
Communication interfaces
Multilogger is always equipped with a USB connector for communication, data analysis and also for charging the rechargeable batteries. Multilogger - Alarm limits
- Sends an e-mail when an alarm state begins or ends
- Uses DATALINK: displays current values or downloads values from memory to the COMET database on your PC. The COMET Database
- software contains many useful tools for data analysis: graphs, tables, statistics, etc.
- Simple wireless communication with TP-LINK Wi-Fi router
- Third-party applications to read actual measured values using universal SNMPv1 and XML protocols
- View current measured values using your web browser
ALARM OUT output
- The output can be used to control other devices when the alarm is triggered, such as an external buzzer, telephone dialer, etc.
- Output type: open collector transistor
- Maximum switching current: 100 mA
- Maximum voltage at output: 24 V
- Auxiliary voltage at terminal: +5 V (only when mains supply is present)
- Users can receive alarms if values go outside the set parameters. Alarms are indicated via an internal buzzer, 3 LEDs or email alerts via the Ethernet port.
