pH/Redox/ISE Meter TM 40 Oxygen Meter AM 40 Conductivity Meter LF 40

Safety This Operating Instructions Manual contains fundamental information that should be observed in connection with the installation, start-up, operation and maintenance of the instrument in connection with the sensor. Therefore, it is absolutely vital for the user to read this manual completly prior to working with it. The symbol "General Warning" indicates special warnings in the manual. User qualification The meter has been designed for analytical measurements. It is assumed that the user/operator and the maintenance personnel have the proper professional skills and experience to know the...

2 sockets for connecting the sensor and the” Interface HMG USB” are located on the front side of the instrument. Please use only the delivered original cable for the interface with the PC. For protecting the sockets against moisture and to avoid corrosion, the sensor should always be connected to the instrument and the “Interface HMG USB” socket should be sealed by means of the protection cap if it is not in use. The “Interface HMG USB” is not included in the delivery. The measuring inputs must be potential-free and must have no connection to mains voltage potentials. All inputs must be operated...

3 Button, Display, Menu structure, Password protection 3.1 Operation elements The instrument features easy operation by means of 5 buttons only and a plain text menu structure. Configuration Navigation <up> Calibration Navigation <right> Data logger Navigation <down> ^ By pressing the button “ON/OFF“ the meter switches on. The meter switches off either automatically after a preset time-out or by long (approximately 3 seconds) pressing the “ON/OFF“ button. ^ Only for AM 40: Also when the AM 40 is switched off, the connected O2-Sensor is supplied with the necessary polarisation voltage and so the...

Datenlogger data logger Allgemein general Intervall intervall Festtemp. fixed temp. Automatik automatic Temp.-Wert temp.-value zurueck back Hauptanzeige main value Reset reset pass word zurueck back M-Bereich meas.range Ansprechv. response

Configuration the basic settings “General” The entire structure of the menu is displayed graphically in  chapter 3.2. Under "General", the following device-relevant basic settings can be configured: Display Password Clock Language Off time Back 4.1 Configuration Backlight On the device the backlight for display can be switched on or off. For configuration of the backlight do the following steps: 1. Open menu „general“ 2. Select „Backlight“ disable/enable Select the position you would like to use by using the buttons Press the -button to accept and save the entry. To cancel the input dialogue...

For configuration of the language do the following steps: 1. Open menu „general“ 2. Select “language" and enter the language Select the position you would like to use by using the buttons -button to accept and save the entry. To cancel the input dialogue without saving the value 4.5 Configuration off time You can set the time when the meter switches off automatically. The data logger will continue to log, if it is set in ffl chapter “Data logger”. To configuration the off time do the following steps: 1. Open menu „general“ 2. Select “off time“ and enter the time Select the position you would...

Menu structure data logger Back to the measurement value Next periode Measurement value Info Next Measurement value Info Menu structure Info MIN/MAX INFO MESSMODUS RESET MIN/MAX For comfortable reading out of the data logger and configuration the device, a download of the software “DinModule” from http://download.meinsberg.de/en/ is possible. To connected the pocked meter with a PC the as accessory available “Interface HMG USB“ is needed.

7.1 Application Fields TM 40 The pH/Redox/ISE Meter measures pH,/Redox and ISE-potential and combines the features for mobile application in the field with the precision and comfort of a laboratory meter with plaint text structure menu, integrated data logging system and a rugged watertight IP 65 enclosure. 7.2 Composition TM 40 TM 40/Set comes completely with the accompanying pH-Sensor EGA142-K010-U-X and accessories in a protective case. This combination operates in accordance with the standardized requirements for determination of pH; electrochemical probe method acc. EN ISO 10523:2012. The...

Select the position you would like to change by using the buttons position with dialogue without saving the value press -button to accept and save the entry. To cancel the input . 7.3.2 Configuration of the sensor type The TM 40 can be connected with pH, ORP or ISE electrodes. The used sensor type has to be configured in the device. For configuration of a sensor type do the following steps: 1. open menu „sensortype“ 2. select the type pH Redox ISE Select the position you would like to use by using the buttons and save the entry. To cancel the input dialogue without saving the value press 7.4...

7.4.1 Data input Data input stands for the input of the specific values of the connected sensor, for example as determined at the laboratory before. asymmetry slope back Select the corresponding calibration value whose settings you want to change. An input dialogue will now enable you to change the values within corresponding limits. If you exceed these you will get an error message to prompt you to enter a value within the fixed limits. Select the position you would like to change by using the buttons Press the -button to accept and save the entry. CONF LOGS To cancel the input dialogue without...

7.4.4 Automatic Calibration The automatic calibration of the pH measurement is a two-point type and requires knowledge of what buffer solution group you want to use. The TM 40 offers the following buffer solution groups for calibration: NBS standard buffer solution as per DIN 19266: pH value at 25 °C 1.68 / 4.01 / 6.86 / 9.18 / 12.45 Technical buffer solution as per DIN 19267: pH value at 25 °C 1.09 / 3.06 / 4.65 / 6.79 / 9.23 Knick/Mettler-Toledo/Ingold buffer solution: pH value at 25 °C 2.00 / 4.01 / 7.00 / 9.21 You must take a choice in the first dialogue...