The smart memo is an electronic pressure measurement device for carrying out pressure tests with the possibility of connecting several external sensors (EDS2). Various menu items are available for the smart memo, which contain ready-made, menu-guided procedures for carrying out tests, e.g. in the gas and water sector. In addition, further menu items are available that have been programmed for different applications. The EDS2 Data Logger is a menu item for long-term recording of several EDS2 sensors for various applications.

What can I do with the EDS2 Data Logger?

With the EDS2 Data Logger, several measuring channels can be recorded and documented simultaneously over a longer period of time. As soon as an EDS2 sensor is connected, it is automatically listed as a separate measuring channel. Every EDS2 sensor from Esders GmbH can be used with the EDS2 Data Logger. Thus, it is possible to check, control and document different measured variables of an application. Some example applications are listed below:

Testing of gas meters and gas installations

With the help of the EDS2 Data Logger and several EDS2 sensors, the control behaviour of a gas meter or gas pressure regulator in the gas installation can be tested, for example. Two EDS2-P pressure sensors can be used for this purpose, one connected upstream and one downstream of the regulator. The measured values of both measuring channels are recorded at the same time for a set duration and can be compared or checked after the measurement has been completed. In addition, one or more temperature sensors can be connected to the pipeline to gain further knowledge.

smart memo Datenlogger

Testing of pressure loss of components

The EDS2 Data Logger can be used, for example, to check the pressure loss of parts/components in pipeline systems and record it over a longer period of time. In pipeline systems, the pressure loss can be tested via an orifice plate with the help of two pressure sensors in order to estimate velocities. Pressure losses upstream or downstream of a consumer can also be checked.

Process flow review

The EDS2 Data Logger can also be used to check different process parameters, e.g. to test pressure and temperature in a pressure vessel or in a boiler. The temperature, for example, can be checked at several measuring points in order to eliminate possible sources of error in the process or to optimise it. 

Pressure and/or temperature recording for pressure tests according to DVGW G 469 C3 and B2

In principle, the EDS2 Data Logger can also be used for recording measurement data at different measuring points as part of a long-term test on high-pressure gas pipelines in accordance with DVGW regulation G 469 C3 or B2.

What do the menu item and protocol look like? Where are the measurement data available?

The EDS2 Data Logger is a separate (optionally bookable) menu item on the smart memo. When starting the menu item, all sensors to be recorded should already be connected. The recording of the air pressure can be activated optionally. After setting the storage interval and the measurement duration, the recording can be started. If required, the zero points of the sensors can be set.

The setting of the measuring duration is limited upwards. The maximum measurement duration depends on the number of connected sensors and the selected storage interval (larger number of sensors causes a smaller maximum storage duration).

After the end of the recording, the measurement data is made available in a PDF protocol in the form of graphical measurement data diagrams. In addition, the measurement data is available for download in Excel format in Esders Connect.

smart memo Datenlogger Bericht

What do I need for this task?

To carry out these tasks, a smart memo with the EDS2 Data Logger Option enabled is required. Depending on the requirements, at least one or more EDS2 sensors are necessary whose measured values are to be recorded. Any EDS2 sensor from Esders GmbH can be used with the EDS2 Data Logger. Different pressure sensors (EDS2-P), temperature sensors (EDS2-T) and flow sensors (EDS2-F) are available. EDS2 level sensors will also be available soon, which can also be used with the EDS2 Data Logger.

A B11 connection cable is required for each connected sensor. If more than one EDS2 sensor is connected, a T- connection piece B11 is required for each additional sensor (available in 5 m and 1 m lengths).

Suitable connection accessories, such as adapters, hoses etc. can be found in our online shop.

Example equipment set:

smart memo
smart memo
Electronic pressure test case for pressure tests with connection possibility of up to 5 external pressure or temperature sensors. - the test procedures are menu-guided and can be carried out with simple Data entry dialog - a freely programmable pressure test is included - optional test sequences for gas and water tightness tests e.g. according to DVGW, ÖVGW, EWE, Avacon, WEVG. - a subsequent addition of test sequences is possible easily - large, illuminated display, even in direct sunlight easy to read - Data entry and signature via touch display and foil keys - Stylus for the touch display included - Data memory for hundreds of measurements, depending on test sequence - Communication via Bluetooth for update, data transmission, printer - LTE / GPS module (optional) - robust case (IP 67) - Operating time approx. 200 hours, extension with power supply possible from outside Dimensions: 220 x 90 x 168 mm Weight: approx. 1450 g
Option EDS2 Data Logger
Option EDS2 Data Logger
Menu item for recording measurement data from any EDS2 sensors. Different sensor types can be connected (pressure, temperature, flow) and their measured value is recorded simultaneously (max. 5 sensors). The storage interval is freely adjustable within a maximum measurement duration (depending on the number of sensors).

ATTENTION: you need 2x the external pressure sensor for this application

External pressure sensor EDS2-P 10 bar 0,1% 0-40 °C incl. DAkkS
External pressure sensor EDS2-P 10 bar 0,1% 0-40 °C incl. DAkkS
can be used with the measuring device via connection cable incl. DAkkS calibration certificate (initial certification) Sensor type: absolute pressure sensor Measuring range: 0 to 10 bar above atmospheric pressure Measuring accuracy: < 0.1% of final value at 0 - 40°C Operating temperature: -20 °C to +70 °C Max. pressure 15 bar Connection: outer thread G 1/4"

ATTENTION: you need 2x the temperature sensor for this application

Temperature sensor contact element EDS2-T 0,1K DAkkS
Temperature sensor contact element EDS2-T 0,1K DAkkS
including DAkkS calibration certificate Measuring range: 0°C to 40 °C Measuring range resolution: up to 0.01 °C Accuracy: 0.1 °C Docking element with an elastic belt for fixing to the pipe, up to approx. OD 500. Material: synthetic material (housing), aluminum (contact face)
EDS2-V flow meter 1-42l/min 5%
EDS2-V flow meter 1-42l/min 5%
Digital flow meter to connect to smart memo. Measurement data are automatically transferred and used, for example, for the pressure drop test according to German DVGW guideline W 400-2. Can be used for the following drain volumes in water pressure tests (e.g. W 400-2/W 101): min. 32 ml max. 84 litres Sensor type: flow meter Measuring range: 1-42l/min. Accuracy: 5% of MW. Operating temperature: 0°C to +70 °C Max. pressure: 25 bar Connection: inlet nipple series 5020, outlet Geka coupling Instructions for use: For proper measurement results, the sensor must be rinsed with water before the test is carried out!

ATTENTION: you need 4x the connection cable B11 5 m length for this application

Connecting cable B11 5m
Connecting cable B11 5m
for external digital sensors (EDS2), length: 5 m connection to smart memo
Connecting cable B11 or extension cable B11, 1m
Connecting cable B11 or extension cable B11, 1m
to connect external digital sensors (EDS2) with smart memo

ATTENTION: you need 4x the T-connection piece for this application

T-piece B11
T-piece B11
T-connection piece B11 bayonet coupling 11 mm

Example equipment set: