Descripción
Comet U0843M
- A solution for every need, every budget – economy and premium dataloggers
- High quality, accurate and stable sensors
- Built-in battery operated
- Built-in printer
IoT Wireless Temperature Datalogger for 2 External Probes, with 2 Two-State Inputs, Built-in GSM Modem
GSM Datalogger is designed to record from two external temperature probes and two two-state inputs. In case of exceeded set limits, SMS and JSON messages can be sent via GPRS data connection. Measured values can be sent to the internet storage COMET Cloud, which is complete monitoring, alarm, and analysis system.
It is also possible to set the regular sending of JSON messages to COMET Database, the sending interval is adjustable. Alarms are also indicated locally by LED, LCD, and acoustically by built-in beeper. The recording is performed in non-volatile electronic memory.
The data can be transferred to a PC via included USB-C cable. GSM recorder includes a Traceable calibration certificate with declared metrological traceability of etalons is based on requirements of EN ISO/IEC 17025 standard.
This model can measure up to two temperature values, which are sensed by outdoor Pt1000/0 series probes. In addition, it is provided with two binary inputs for monitoring voltage-signal changes or changes of a signal coming from a voltage-free contact. The binary input changes are registered immediately, irrespectively of the recording interval setting.
Connection Mode: For the procedure for connecting wires to the connecting block refer to Annex 4.
To safe record the input status, the signal must be present for at least 1 s. Binary inputs of this device are not able to capture connected/disconnected voltage status. Input signals are connected to a connecting block. The response to a temperature jump depends on the probe design. As a rule, this device is a few times faster than the inner-sensor model. The maximum length of the probe line wire should not exceed 15 m; the maximum length of the binary-input cable should not exceed 30 m. It is recommended to use shielded cables. The device’s ingress protection is IP 20. Due to low ingress protection, the device is not suitable for use in dusty rooms or rooms exposed to water ingress.
Manufacturer Specs
| Technical Data | |
| Measuring range | -200 to +260 °C |
| Accuracy | ±0.2°C; ±0,2 % of the measurement value in a range of +100 to +260 °C |
| Resolution | 0.1 °C |
| Response time t90 of temperature measurement (temperature step 20°C, air flow approximately 1m/s) | according to the connected probe |
| Binary Input | |
| Parameters of the voltage contact | «L» level input voltage:< 0,4 V(*); «H» level input voltage:> 2 V; Minimum voltage applicable:0 V; Maximum voltage applicable:+30 V DC |
| Parameters of the voltage-free contact | Contact resistance in «switched-on» state:< 10 kOhm; Contact resistance in the «switched-off» state:> 300 kOhm; Contact voltage in the «switched-off» state:ca 3 V; Minimum state duration necessary for latching the state:1s |
| General Technical Data | |
| Operating temperature | -20 to +60 °C |
| Channels | 2x external temperature probe, 2x binary input |
| Memory | 500,000 values in noncyclic logging mode; 350,000 values in cyclic record mode |
| Recording interval | adjustable from 1 s to 24 h |
| Display and alarm refresh | adjustable 1 s, 10 s, 1 min |
| Recording mode | noncyclic – data logging stops after filling the memory cyclic – after filling memory oldest data is overwritten by new |
| Real time clock | year, leap year, month, day, hour, minute, second |
| Power | battery SONY LiIon 5200mAh |
| Protection class | IP20 |
| Dimensions | 61 x 93 x 53 mm, with antenna 120 x 93 x 53 mm |
| Weight (including batteries) | approx. 270 g |
| Warranty | 3 years |
Tech Specs
Dataloggers / Data Acquisition/Dataloggers for Environmental Variables/Temperature Dataloggers Templ |
|
|---|---|
| Max Temperature | 260 C |
| Min Temperature | -200 C (-328 F) |
| # Inputs/Channels | 4 |
| Accuracy | ±0.2°C; ±0,2 % of the measurement value in a range of +100 to +260 °C |
| LCD Screen | Yes |
| Software Included | Yes |
Test Equipment General Attributes |
|
| Warranty | 3 YEARS |
| IP Rating | IP20 |
| Product Weight | 0.60 LBS |
| Shipping Weight | 0.69 LBS |
| Battery Type | Li-ion |
| Country of Origin | Czech Republic |
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