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Also known as: remote server environment monitoring, computer room monitor, data center thermometer, temperature humidity IP sensor, computer room temperature alert.
Rack monitor - front view
Rack monitor - rear view
 temperature
- humidity
- power presence
- flood
- smoke
- air flow
- room entry
Server monitoring system is designed for 19-inch rack mounting, the height is one rack unit - 1U.
Model H4531R is prepared for connection of external Pt1000 temperature probe and models H3531R, H7534R are equipped with 1 meter temperature + humidity probe. Unit also contains three binary inputs for detection of two-state events - e.g. power presence, water, smoke, airflow, glass break detection, door contact.
Rack unit provides 5Vdc and 12dc power supply for external all sensors and detectors.
Large dual line LCD for simultaneous display of temperature, humidity is an advantage. Parameters are easy adjustable from transmitter keyboard or from the computer.
State-of-the-art capacitive polymer sensor ensures excellent calibration long term stability, inertia against water and condensation.
Environmental monitor is equipped with two relay outputs for alarm indication or control of external devices. Each relay can be assigned to any measured value.
APPLICATIONS - online monitoring of temperature, humidity, power, flood, smoke, airflow, room entry at:
- server and computer rooms
- data centers
- rack monitoring
- industrial Ethernet
- building management and automation
- telecommunication devices
| MODES OF COMMUNICATION |
| Modbus TCP: |
Modbus TCP protocol enables to read measured values and binary input states, set alarm limits, adjust the probe. |
| Telnet: |
Port 9999 enables to set alarm limits (lower, upper limits, hysteresis for measured values and time delay), e-mail addresses, SNMP addresses, probe description, refresh of www pages (10s to 65535s), set storing interval to history (10s to 65535s), enable each communication channel. Capacity of the history memory is 100 sets of temperature, humidity, pressure + computed values. Password protection of this port is enabled. Automatic IP address assignment from DHCP server is also enabled. |
| WWW pages: |
User selectable design of www pages enabling to display curve of measurement history and binary input states. User can design the look of www pages and temperature, humidity, pressure + computed values history.
Temperature, humidity, pressure in Roznov p.R., Czech Republic
from online www internet sensor T7511 |
| SNMP: |
It is possible to read actual values, alarm limits and binary input states. In case of alarm creation warning message (trap) is sent to addresses defined by the user (maximum three addresses). |
| SOAP: |
Online transmitter enables to send actual measured data in the format of SOAP message to selected web server in preset interval 10-65535 s. In case message is not received by the server till next message is sent, warning trap 1/2 is sent. |
Online transmitter enables to monitor measured values and binary input states. In case of exceeding of adjusted limits warning message can be sent to specified addresses.
There are the following options of alarm indication:
| ALARM INDICATION OPTIONS |
| E-mail: |
In case of alarm creation warning e-mail message is sent to addresses defined by the user (maximum three addresses) or via e-mail to SMS message. |
| SNMP: |
In case of exceeding of adjusted temperature, humidity, pressure + computed value limits or binary input states alarm is activated and warning trap is sent to user specified IP addresses (maximum 3 addresses). |
| WWW pages: |
In case of exceeding of adjusted temperature, humidity, pressure + computed value limits or binary input states active alarm is displayed on www page. |
| syslog: |
Online transmitter enables to send text messages to selected syslog server after different events appear. E.g. after transmitter restart, alarm activation, communication error with SNTP, write to transmitter via mdb, sntp, after firmware change, after alarm termination, after communication error with SOAP server. |
Synchronizing of time and record to www table and measured values history is enabled by SNTP via Internet.
| TECHNICAL PARAMETERS OF THE ONLINE SENSOR |
| Maximum switching voltage, current, power of relay output: |
50V, 2A, 60VA |
| Operating relative humidity range: |
0 to 100% |
| Accuracy of relative humidity measurement: |
±2.5% relative humidity from 5 to 95% at 23°C |
| Temperature measurement accuracy: |
±0.4°C |
| Available temperature units: |
degrees Celsius, Fahrenheit |
| Accuracy and range of barometric pressure output: |
± 1.3hPa at 23°C
range: 600 to 1100hPa |
| Temperature operating range of case with electronics: |
-30 to +80°C |
| Temperature operating range of LCD display: |
readable to operating temperature +70°C, it is recommended to switch OFF the LCD over +70°C |
| Range of RH sensor temperature compensation: |
-30 to +105°C |
| Signal for binary inputs: |
from voltage-less contact, open collector or two-state voltage signal.
Inputs are not galvanically isolated. |
| Minimum pulse length at binary input: |
500 ms (shorter pulse may not be detected) |
| Voltage at open contact: |
3.3 V |
| Low voltage level: |
0 to +0.2 V |
| High voltage level: |
+3.0 to +30V |
| Filtering ability of sensor cover: |
0.025mm - filter with stainless steel mesh |
| Protection: |
IP30 electronics, IP40 sensors |
| LAN connection: |
RJ-45 connector |
| Power: |
9 - 30 Vdc, maximum consumption 250mA.
For power over Ethernet any PoE splitter is necessary e.g. DWL-P50 from D-Link company |
| Power connector: |
co-axial, diameter 5.5 x 2.1 mm |
| Dimensions of the case: |
483 x 44 x 45 mm (W x H x D), one rack unit 1U |
| Warranty: |
two years |
| Model |
Measured value |
Maximum measuring ranges |
Description |
H4531R |
temperature+
3 bin. inputs
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-200 to +600°C |
Temperature transducer for
RTD Pt1000probes
(not included).
Accuracy of the input without probe +/-0,2°C |
H3531R |
temperature+
humidity+
3 bin. inputs |
-30 to +105°C* including probe cable
relative humidity 0 to 100% |
Thermometer-hygrometer.
T+RH probe with 1m cable. Cable lengths 2m or 4m available optionally.
Humidity values available also as dew-point temperature, absolute humidity, specific humidity, mixing ratio, specific enthalpy. |
H7531R |
temperature+
humidity+
atmospheric pressure+
3 bin. inputs |
-30 to +105°C* including probe cable
relative humidity 0 to 100%
atmospheric pressure: 600 to 1100hPa
accuracy: +/-1,3hPa at 23°C |
Thermometer-hygrometer-barometer.
T+RH probe with 1m cable. Cable lengths 2m or 4m available optionally.
Humidity values available also as dew-point temperature, absolute humidity, specific humidity, mixing ratio, specific enthalpy.
Reading and pressure output in these units:
hPa, kPa, mbar, mmHg, inHg, inH2O, PSI, oz/in^2.
Barometer enables to measure sea level pressure by setting of correction to altitude above sea level. |
* Relative humidity at temperature over +85°C is limited in accordance with the graph. Near plastic case with electronics and probe cable maximum temperature is +80°C.
Figure: Working range of Ethernet sensor
Included accessory:
Traceable calibration certificate from the manufacturer, instruction manual. Calibration certificate with declared metrological traceability of etalons is based on requirements of EN ISO/IEC 17025 standard.
Example of calibration certificate.
Set of four rack mounting screws is also included.
Free program TSensor for configuring of the transmitter is ready to download.
Free program SensorReader for logging values from one transmitter to a PC disk file is ready to download. Program enables to alarm acoustically the PC user if adjusted alarm limits are exceeded. Recorded values in CSV format are easy to process in e.g. Excel. Program can be started several times on a computer at the same time to monitor values from several transmitters.
For acquiring values from several transmitters, third party software is necessary to use. Tested functionality is with programs:
LabVIEW from National Instruments.
TIRS.NET - transmitters are also directly supported by program TIRS.NET from Coral s.r.o. company. Please download demo enabling full work with transmitters.
| OPTIONAL ACCESSORY |
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SP008 |
AC voltage presence sensor, connectable to binary Hx531 inputs. |
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LD63HS |
Water leakage sensor LD63HS, relay output, connectable to binary Hx531 inputs.
Included cable 1.4 meters to water leakage sensor.
Included cable 1.9 meters for connection of Hx531R. |
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SD212SP |
Optical smoke detector, relay output, connectable to binary Hx531 inputs, powered from Hx531 12Vdc output. |
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SA200A |
Magnetic door contact, connectable to binary Hx531 inputs, without cable. |
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SA200A-2
SA200A-5
SA200A-10
SA200A-20
SA200A-30
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Magnetic door contact, connectable to binary Hx531 inputs with cable lengths 2, 5, 10, 20, 30 meters. |
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PP90 |
right-angled stain-less steel flange for wall mounting. |
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SP006 |
Tool for easy wire connection to terminals. |
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A1515 |
adapter 230V-50Hz/12Vdc. |
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DWLP50 |
DWL-P50 Power over Ethernet (PoE) adapter from company D-Link.
The adapter is supposed to be connected to Ethernet switch supporting PoE. |
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accessory for calibration and adjustment of humidity by the user. |
Software and firmware for transmitters.
You can downlaod configuration programs and updated firmware from page Download - transmitters and transducers.
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