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T20.0.2X.6C-05 page 1 of 4
Operating Manual
EASY
BUS
- Sensor Module
for Relative Air Humidity And Temperature
EBHT – 1R / 1K / 2K / Kabel
as of V2.8
Specification:
Measuring range: relative air humidity: 0.0...100.0 % rel. humidity (temperature compensated)
temperature: -40.0...120.0 °C or -40.0...248 °F
Rec. range of application: standard: 20,0...80,0 %RH
option high humidity: 5,0...95,0 %RH
Accuracy: (at nominal temperature = 25°C)
relative air humidity: ±1% linearity, 2% hysteresis
(at recommended range of application
)
temperature: 0.5% of measured value ±0.1°C
Sensors: relative air humidity: cap. polymer sensor
temperature: Pt1000
Temperature compensation: automatic
Min-/Max-Value Memory: Min and max measured values are stored
Output signal: EASY
BUS
-protocol
Connection: 2-wire EASY
BUS
, polarity free
Busload: 1.5 EASY
BUS
-devices
Adjusting: via interface or keypress (only with option VO)
by input of offset and scale (humidity and
temperature)
Display: (option) approx. 10 mm high, 4-digit LCD-display
Ambient conditions for electronics:
Nominal temperature: 25 °C
Operating temperature: -25 to 50 °C (sensor head and tube: -40 to 100°C – for short time up to 120°C)
Relative humidity: 0 to 95 %RH (non-condensing)
Storage temperature: -25 to 70 °C
Housing: ABS (IP65)
Dimensions: 82 x 80 x 55 mm (without elbow-type plug and sensor tube)
Mounting: With holes for wall mounting (in housing - accessible after cover has been removed).
Mounting distance: 50 x 70mm, max. shaft diameter of mounting screws is 4 mm.
Electrical connection: elbow-type plug conforming to DIN 43650 (IP65),
max. wire cross section: 1.5 mm², wire/cable diameter from 4.5 to 7 mm
EMC: The
device corresponds to the essential protection ratings established in the Regulations of the Council for the
Approximation of Legislation for the member countries regarding electromagnetic compatibility (89/336/EWG). In
accordance with
EN61326 +A1 +A2 (appendix A, class B), additional errors: < 1% FS.
When connecting long leads adequate measures against voltage surges have to be taken.
GREISINGER
electronic GmbH
D - 93128 Regenstauf, Hans-Sachs-Straße 26
Tel.: 0049 9402 / 9383-0, Fax: 0049 9402 / 9383-33, eMail: info@greisinger.de
Working area of humidity sensor:
T20.0.2X.6C-05 page 2 of 4
Safety instructions:
This device has been designed and tested in accordance with the safety regulations for electronic devices.
However, its trouble-free operation and reliability cannot be guaranteed unless the standard safety measures and special safety
advises given in this manual will be adhered to when using the device.
1. Trouble-free operation and reliability of the device can only be guaranteed if the device is not subjected to any other climatic
conditions than those stated under "Specification". If the device is transported from a cold to a warm environment condensation
may cause in a failure of the function. In such a case make sure the device temperature has adjusted to the ambient temperature
before trying a new start-up.
2. General instructions and safety regulations for electric, light and heavy current plants, including domestic safety regulations (e.g.
VDE), have to be observed.
3. If device is to be connected to other devices (e.g. via PC) the circuitry has to be designed most carefully. Internal connection in third
party devices (e.g. connection GND and earth) may result in not-permissible voltages impairing or destroying the device or another
device connected.
4. If there is a risk whatsoever involved in running it, the device has to be switched off immediately and to be marked accordingly to
avoid re-starting.
Operator safety may be a risk if:
- there is visible damage to the device
- the device is not working as specified
- the device has been stored under unsuitable conditions for a longer time.
In case of doubt, please return device to manufacturer for repair or maintenance.
5. Warning:
Do not use this product as safety or emergency stop devices, or in any other application where failure of the product could result in
personal injury or material damage.
Failure to comply with these instructions could result in death or serious injury and material damage.
Disposal instructions:
The device must not be disposed in the regular domestic waste.
Send the device directly to us (sufficiently stamped), if it should be disposed. We will dispose the device appropriate and
environmentally sound.
Assignment of elbow-type plug:
2-wire connection EASY
BUS
, no polarity, at terminals 1 and 2
General installation instructions:
To mount the connection cable (2-wire bus cable) the elbow-type plug screw has to be loosened and the coupling insert
has to be removed by means of a screw driver at the position indicated (arrow).
Pull out connection cable through PG glanding and connect to the loose coupling insert as described in the wiring
diagram. Replace loose coupling insert onto the pins at the transducer housing and turn cover cap with PG glanding in
the direction desired till it snaps on (4 different starting positions at 90° intervals). Re-tighten the screw at the angle plug.
Design types, dimensions
EBHT-1R EBHT-1K EBHT-2K EBHT-Kabel
short sensor tube aside long sensor tube aside long sensor tube bottom separated sensor tube
T20.0.2X.6C-05 page 3 of 4
Display functions
(only available for devices with option -VO)
Currently measured values
During normal operation the relative air humidity in [%RH] is displayed alternating to the temperature in [°C] or [°F].
display relative air humidity display temperature
Min/Max Value Memory
watch Min values (Lo): press ‘down‘(2) shortly once display changes between ‘Lo‘ and Min values
watch Max values (Hi): press ‘up‘(3) shortly once display changes between ‘Hi‘ and Max values
restore current values: press ‘down‘(2) or ’up’(3) once again current values are displayed
clear Min-values: press ‘down’(2) for 2 seconds Min values are cleared. The display shows shortly ‘CLr‘.
clear Max-values: press ‘up’(3) for 2 seconds Max values are cleared. The display shows shortly ‘CLr‘.
After 10 seconds the currently measured values will be displayed again.
Error and system messages
Display Description Possible fault cause Remedy
Err.1
measuring range exceeded Wrong signal Temperature above 120°C not allowed.
Err.2
Measuring value below
measuring range Wrong signal Temperature below -40°C not allowed.
Err.7
System fault Error in device Disconnect from supply and reconnect. If error
remains: return to manufacturer
Err.9
Sensor error Sensor or cable defective Check sensor, cable and connections
Er.11
Calculation not possible Calculation variable missing
or invalid Check temperature
8.8.8.8
Segment test The transducer performs a display test for 2 seconds after power up. After
that it will change to the display of the measuring.
Configuration of the device
The configuration of the device is done by means of the PC-software EbxKonfig or EASYBUS-Konfigurator.
The following parameters can be changed:
- Display unit of temperature measuring
- Adjusting of humidity and temperature display (offset and scale correction)
- Setting of the alarm function for humidity and temperature
The adjusting by means of offset and scale is intended to be used to compensate errors of the measurings. It is
recommended to keep the scale correction deactivated. The display value is given by following formula:
value = measured value - offset
With a scale correction (just for calibration laboratories, etc) the formula changes:
value = (measured value - offset) * ( 1 + scale adjustment/100)
Configuration at the device (only available for devices with option -VO)
Attention: If EASY
BUS
sensor modules are operated by a data acquisition software, there
can be problems if the configuration is changed during a running acquisition.
Therefore it is recommended not to change configuration values during a
running recording and furthermore to protect it against manipulation by
unauthorised persons. If the jumper connecting the contacts shown in the
figure is removed, the configuration is not accessible, the settings are
protected. Never connect the other contacts!
Arrow to Temp
indicates
temperature display

Produktspecifikationer

Varumärke: Greisinger
Kategori: Inte kategoriserad
Modell: EBHT-1R

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