Comet H5521 Quick Start Manual

PRODUCT DESCRIPTION

Programmable regulators with Ethernet connection are designed to measure temperature and relative humidity of air, to measure
concentration of CO in the air, to signal alarms and to control external devices. These regulators are to be used in a usual chemically
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non-aggressive environment.
The CO concentration is measured using a dual wavelength NDIR sensor with a multipoint calibration. This principle compensates aging
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of the sensing elements and offers maintenance free operation and outstanding long term stability.
The function of two output relays can be set from device web pages and using the jumpers (see „Device connection procedure"). The
device allows two alarm limits to be set for each measured value. In response to the change of the alarm state a relay may be closed, an
acoustic signal may be activated or an alarm message may be sent by email or other communication protocol. The status of output relays
can be controlled remotely via Ethernet, too. Values computed from humidity are supported. The currently measured values are shown on
a two-line LCD display. Visual indication of the CO
Formats of the Ethernet communication that are supported: HTTP – web, Modbus TCP protocol, SNMPv1, XML and SOAP protocol.
Alarm messages are sent via email, SNMPv1 Trap or Syslog. To set all device including their alarm limits embedded websites can be
used. A device connected to a local network can be found by the TSensor software (free to download at www.cometsystem.com).
Type * Measured values
H5521 CO
2
H5524 CO
2
H6520 T + RH + CO
H6521 T + RH + CO
f
* Models marked HxxxxZ are custom - specified devices

INSTALLATION, OPERATION AND CONFIGURATION

The mounting holes and connection terminals are accessible after unscrewing the four screws in the corners of regulator case and
removing the lid. Devices have to be mounted on a flat surface to prevent deformation. For output relays connection choose cables with
an external diameter 4 to 6.5mm and a wire cross-section 0.14 to 1.5mm
glands. Unpack the external CO
choice of working position or measuring point could adversely affect the accuracy and long-term stability of measured values.
To connect the device to the network it is necessary to know a new suitable IP address. Please contact the network administrator to obtain
the IP address. The device can obtain an IP address automatically from the DHCP server, or a static IP address can be set manually. The
default IP address of device is preset to 192.168.1.213. After connecting the external probe, the Ethernet cable and the power adapter,
the device IP address needs to be changed in the web pages. To change the IP address, the TSensor software can be used alternately.
After switching on the device starts an internal test. During this time (about 20 s) the LCD shows ---- instead of CO
The devices do not require special maintenance. We recommend verifying the measurement accuracy regularly by calibration.

MONITORING AND VALUES RECORDING

For data monitoring and auditing it is recommended to use Comet Database software. A trial version of Comet Database is available at
www.cometsystem.com. For monitoring, software and SCADA systems from third party vendors can be used. For data acquisition a
communication protocol can be used which is supported by the device.

ERROR STATES

The device continuously checks its state during operation. If an error appears, the relevant code is displayed: Err 1 – measured value
(except of CO concentration) or calculated value is above the upper limit, Err 2 – the measured or calculated value is below the lower
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limit, or a CO concentration measurement error has occurred, Err 0, Err 3 and Err 4 – a serious error has occurred, please contact
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distributor of the device (for devices with an external probe CO2G-10 the Err 4 indicates that the probe is not connected).

SAFETY INSTRUCTIONS

- Do not use or store the devices without the cover of the temperature and humidity sensors.
- Temperature and humidity sensors should not to be exposed to direct contact with water and other liquids.
- It is not recommended to use the humidity regulators for long time under condensation conditions.
- Take care when unscrewing the filter cap as the sensor element could be damaged.
- Use only a power adapter which is approved according to technical specifications and relevant standards.
- Do not connect or disconnect devices while power supply voltage is on.
- Installation, electrical connection and commissioning should be performed by qualified personnel only.
- The devices contain electronic components. Dispose of them in accordance with legal requirements.
- To complement the information in this data sheet read the manuals and other documentation, which are
available in the Download section for a particular device at
COMET SYSTEM, s.r.o.,
756 61 Roznov pod Radhostem, Czech Republic
concentration is provided by three LEDs.
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Version
probe on cable
ambient air
+ CV ambient air
2
+ CV probes on cable
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probe and connect it to the regulator. Pay attention to the device and probe mounting, because incorrect
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Bezrucova 2901
Regulators with Ethernet connection
T...temperature, RH...relative humidity, CO
. Do not forget to insert the attached plugs into the unused cable
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www.cometsystem.com
QUICK START MANUAL
H5521 • H5524 • H6520 • H6521
Mounting
wall
wall
wall
wall
...concentration CO in air, CV...computed values
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concentration value.
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Specifications are subject to change without notice.
ie-hgs-n-h5(6)5xx-06