FAQs

Use the RS485 kit for retrofitting (order number HA010605), see data sheet and operation manual of your specific product.

The device indicates an error according to NAMUR NE43. For details please see the operation manual of your specific E+E product.

The device has one GND connection for the power supply, a analogue output GND an an interface GND, see connection diagram in the operation malual. The analogue output GND and the interface GND carry only the current outpt resp. interface current, which results in a more stable signals compared to a mix GND connection.

Press 2x ► | 5x ◄ | 1x ▲ | 3x ◄ | 1x ▼ | 1x ► then select the "Configuration menu" and press ENTER. Scroll down to “Diagnosis”, press ENTER and scroll down to “Password protection” here you can see previously set password.

Connect the device via the Micro USB service interface to a PC running PCS10 Product Configuration Software and read out the communication setting.

Alternative for device with display: the display configuration menu has a section for Modbus settings (RS485, Modbus RTU) or IP settings (Ethernet, Modbus TCP) where you can see the actual setting or change it.

Connect the device via the Micro USB service interface to a PC running PCS10 Product Configuration Software and see at the section "Log data download" the data memory status.

The retrofit is possible for the device with plastic enclosure. Order type number HA010606 is for device type T5 & T10 and HA010607 for device type T2.

The transmitter requires a firmware update. Connect the device via the Micro USB service interface to a PC running PCS10 Product Configuration Software and confirm the update to version 1.20 or greater.

The measured data logged by the device can only be downloaded via the USB service interface to a PC running the PCS10 Product Configuration Software.

The pluggable remote probe has a label with the serial number close to the connector. This must be same as the serial number of the basis device. Refer to the operation manual chapter 4.6 for further details.

The main difference is the hardware interface. The Modbus RTU protocol runs on RS485 Hardware while Modbus TCP/IP protocol on Ethernet hardware.

EE160 and EE210 are tested and certified by BTL (BACnet Testing Laboratories).

All BACnet products are tested at E+E. The BTL listed E+E products have been additionally tested by the BACnet Testing Laboratories.

I²C a standardized on-board serial interface between one controller and multiple devices using data and clock line. For details about I²C, please see NXP UM10204 I²C-bus specification and user manual, Rev. 6, 4 April 2014.

E2 is a serial interface designed by E+E with unique command structure as well as reduced clock speed comparted to I²C. For more details about please see E2 Interface Specification

The maximum cable length depends on the product, clock speed and pull-up resistor, and can be up to 10m. For detail please see E2 interface for humidity probes/modules

I²C is an on-board interface, with bus lines up to 10cm. For longer bus please see the NXP wiring pattern.

Only one E+E device can be connected to the E2 interface of a controller.

Each I²C devices does have it's own ID by series, as long as this ID is unique in the bus this module or component could get built into the bus.

The Humor 20 scope of supply includes an inspection certificate according to DIN EN 10204 – 3.1 in the standard scope of supply. An accredited calibration certificate with specific test points is available upon request.

Please mention that you require an accredited calibration certificate when inquiring for a new HUMOR 20 or when returning for service or re-calibration an existing Humor 20. The most common accredited certificate festure 3 calibration points (15/55/90%RH) or 5 calibration points (15/35/55/75/90%RH). Other certificates upon request.

During normal operation mode, incease the humidity generated by the Humor 10 to the maximum by rotating the blue knob counter-clockwise. The HUMOR 20 display will show arround 100% RH, flashing. Open the cover of the distilled water tank and remove the cover from the calibration chamber. If the display shows is 100 %RH ±0.8%RH, the Humor 20 is within specifications. Is the reading is beyond 100 %RH ±0.8%RH please see the operation manual, chapter 6.4.

This is the sensing head from the plausibility sensor from the HUMOR 20.

By design, the temperature inside the measuring and the saturation cambers of the Humor 20 is uniform. By this, in the range 10 to 40°C the influence of the ambient temperature is negligible.

With distilled water inside during transportation, the Humor 20 may be tilted max. 20°. If this cannot be assured, the water must be removed before transportation.

The humidity generator requires a compressed airof max. 10 bar (145psi), filtered from particles > 0.1µm , with residual oil <0.01mg/m³

The humidity generator requires distilled water. Do not ever fill in tap water, because it causes depositsin the piping and pressure regulators, which lead to malfunktion and eventually to the failure of Humor 20.

When you plan to use the humidity generator again within 4 days we recommend to keep the it powered and the humidity level set to 100% rh. For a longer periods out og use, please remove the water and dry the humidity generator before switch of the power.

The cover is part from the measuring chamber and is mandatory for an accurate calibration with the HUMOR20. Please consult E+E if a cover for your needs is already available.

A blinking display after rotationg the blue knob for setting a new RH level indicates that the new RH evel has not been reached yet. The display should stop blinking after about 3 minutes when reached the new RH point. For a longer (or continuously) blinking display please consult the HUMOR20 operation manual.

Set the display switch to temperature

Yes. Please contact E+E for details and availability.

Calibration means comparing the specimen with a reference and documenting the deviations. Adjustment mens bringing the specimen in line with the reference.

Both certificate state the deviation of the speciment from the reference, while the accredited certificate include also the overall uncertainity calibration process. Only an accredited calibration certificate is traceable to national standard (NMI) and international standards. See also our white paper "Calibration and Traceability in measuring technology".

There are no difference. The E+E factory calibration certificate is an ISO certificate.

Before returning a device for service or calibration, please contact E+E, an E+E subsidiary or an E+E distributor for a quote and instruction on the return procedure.

Yes, this is possible in most of the cases. Before sending a device for calibration, please contact E+E, an E+E subsidiary or an E+E distributor, which will confirm if the required calibration can be performed and issue a quote.

The E+E calibration laboratory performs accredited calibrations for: relative humidity, dew point temperature, air velocity, flow, temperature, CO₂ and pressure. For details please see our calibration website for details of possible ranges of calibration.

Transmitter with "two-wires" technology receive the power from the process, and the signal is carry on return wire (closed current loop). With technology "three-wires" the power supply is separate from current output: 2 wires are the power supply and third carry the signal.

How can I clean the filter cap of a humidity measuring device?

The E+E proprietary sensor coating is a protective layer applied to the active surface and leads of the sensing elements. The coating extends the lifetime and the measurement performance of the E+E sensor.

The E+E propritary Coating helps in dirty, dusty and corrosive environment. salts, off-shore applications). It improves the sensor’s long term stability in dusty, dirty or oily applications by preventing stray impedances caused by deposits on the active sensor surface and on its connecting leads.

Coating does not help again chemicals in gazeous form. Contact an E+E sales representative for details on the influence of certain chemicals onto the humidity sensing elements.

Response time of a humidity sensor protected by the E+E proprietary coating is slightly longer than the response time without coating. Please see the data sheet of the specific sensor.

Temperature gradients along the sensing probes lead to relevant measurement errors. Whenever possible, install the entire probe inside the space to be monitored. If the probe is installed into a separation wall, make sure to isolate thermally the part of the probe looking out of the wall at the cable side.

The product data sheet indicates if and what type of inspection certificate is included in to standard scope of supply. Most of the E+E measurement devices feature an inspection certificate according to DIN EN 10204-3.1 or DIN EN 10204-2.2. An accredited calibration certificate is available on request, see the E+E scope of accreditation at our calibration website

The calibration / adjustement interval depend from the application and from the requirements of the specific industry. See also "Princibles of Humidity measurement".

Calibration for a specific oil is a laboratory procedure for determining the saturation curve of the oil. The saturation curved is described by two parameters (A and B). These parameters are used for setting up the moisture in oil sensor for correct calculation of the water content (ppm) out of the measured temperature and water activity (aw).

Sensor replacement is possible the EE360 models when option PC4 (pluggable probe). Please see the operation manual for detail and spare part code ordering guide.

Please see the cleaning instructions.

No, coating is not available for MIO sensors.

The standard scope of supply of E+E MIO sensorsincludes an inspection certificate according DIN EN 10204 - 3.1. For details on calibration certificates please see our white paper "Calibration and Traceability in Measuring Technology".

No, mineral transformer oils from different manufacturers are quite similar.. A and B parameters are the same.

Not at all. Do not temper in any way with the CO₂ sensing cell. Please see the operation manual of the specific E+E CO₂ measurement device.

Please the section "Maintenance" in the operation manual.

Not al all. A dirty filter cap shall be replaced by a new one. Please the section "Caution"" in the operation manual.

Not at all. Do not temper in any way with the CO₂ sensing cell. Please see the operation manual of the specific E+E CO₂ measurement device.

All E+E CO₂ measuring devices feature an auto-calibration function. For details please refer to "Princibles of CO₂ measurement".

Yes, this in normal in several applications. It is the case for instance in new concrete buildings, due to the concrete carbonation effect. The calcium in the new concrete binds CO₂ from the air.

The standard scope of supply of E+E CO₂ sensors includes an inspection certificate according DIN EN 10204 - 2.2. For details on calibration certificates please see our white paper "Calibration and Traceability in Measuring Technology".

Accredited calibration certificate for CO₂ is available upon request, please see our calibration website.

Due to its design and materials, the E+E thin film sensing element for air velocity is highly insensitive to pollution. When operaten in very dusty or diry environment, cleaning might be necessary. See section maintenance at downloads.epluse.com/fileadmin/data/miscellaneous/datasheet_air_velocity_measurement_basics.pdf

This is not possible. Return the device to E+E for service.

The standard scope of supply of E+E air velocity sensors includes an inspection certificate according DIN EN 10204 - 2.2 or DIN EN 10204 - 3.1, depending on the model. Please see the product data sheet and operation manual for the type of certificate. For details on calibration certificates please see page 5 in www.kalibrierdienst.at/fileadmin/content/White_Paper_Calibration_and_traceability_in_measuring_technology.pdf

Accredited calibration certificate for air velocity is available upon request, please see our calibration website

For readjusting the air velocity sensor you need first of all a reliable reference. This would be a wind channel. For the readjustment procedure please see the operation manual of the specific E+E air velocity sensor available at www.epluse.com

In case an approriate air velocity reference in not available, please return the device to E+E for service.

The dew point temperature (Td) indicates where condensation begins. The frost point temperature (Td) indicates where icing begins.

Yes, the probe and the sensing element of all E+E dew point measurement devices is wettable.

Low dew point means the difference between the ambient temperature and the dew point temperature is higher than 40 °C (72 °F). This corresponds to RH < 5%.

The appropriate products are the EE371 and EE355. Both devices feature an auto-calibration procedure.

High dew point means the difference between the ambient temperature and the dew point temperature is lower than 3 °C. It corresponds to RH > 85%.

The appropriate product is the EE33-K. The device features a heated sensing element.

The auto-calibration corrects periodically even the smallest drift of the capacitive sensor at very low relative humidity. This is neccessary for high accuracy and long term stability of the dew point measurement. The auto-calibration is performed every 30 minutes and takes approx. 3 minutes. During the auto-calibration, the output is frozen at the last measured dewpoint value.

Auto-calibration is used by EE371 and EE355.

The standard scope of supply of E+E dew point sensors includes an inspection certificate according DIN EN 10204 - 3.1. For details on calibration certificates please see page 5 in www.kalibrierdienst.at/fileadmin/content/White_Paper_Calibration_and_traceability_in_measuring_technology.pdf

Accredited calibration certificate for CO₂ is available upon request, please see our calibration website.

No, this is not allowed. The ATEX devices must carry the original manufacturer labels at all times.

The standard scope of supply of ATEX E+E humidity and temperature measurement devices includes an inspection certificate according DIN EN 10204 - 3.1. For details on calibration certificates please see page 5 in www.kalibrierdienst.at/fileadmin/content/White_Paper_Calibration_and_traceability_in_measuring_technology.pdf

Accredited calibration certificate for ATEX E+E humidity and temperature measurement devices is available upon request, please see our calibration website

The additional measurement error is up to 3 % of the measured value

The standard scope of supply of E+E flow measurement devices includes an inspection certificate according DIN EN 10204 - 3.1. For details on calibration certificates please see our white paper "Calibration and Traceability in Measuring Technology".

Accredited calibration certificate for flow is available upon request, please see our calibration website.

For readjusting the flow sensor you need first of all a reliable reference. In case this is not available, please return the device to E+E for service. Otherwise see the readjustment procedure in the operation manual of the specific E+E flow sensor. 

Yes. Use the E+E Product Configuration Software, section "Process Parameters". See operation manual of the specific E+E device.

Certificate Type 2.1
Declaration of compliance with the order - Statement of compliance with the order.

Certificate Type 2.2
Test report - Statement of compliance with the order, with indication of results of nonspecific inspection

Certificate Type 3.1
Inspection certificate 3.1 - Statement of compliance with the order, with indication of results of specific inspection. 

The meassured data logged by the device can only be downloaded via the USB service interface to a PC running the E-PCS Product Configuration Software

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