781 pH/Ion Meter

781 pH/Ion Meter
Order number: 2.781.0010

In addition to pH, ion, voltage and temperature measurement, the combined 781 pH/Ion Meter also offers an automatic stirrer control, a multi-point calibration with up to nine buffers (pH mode), a method memory and various monitoring functions. The automatic pH electrode test in conformance with GLP permits objective assessment of the electrode. The large backlit multi-line display provides an overview and makes the individual settings easy. The bi-directional RS-232 interface enables data transfer to a printer or PC.

Three different modes are available for ion measurement: direct measurement, standard or sample addition. In the case of fully automated standard addition with an optional Dosimat, only the concentration of the standard and the desired quantity of addition steps need to be entered, the pH/ion meter takes care of the rest. Up to 19 standards can be used for the calibration for direct measurement.

  • Documents
  • Included parts
  • Opt. equipment
  • Brochure: 780 pH-Meter + 781 pH/Ion Meter (english)
    • Brochure: 780 pH-Meter + 781 pH/Ion Meter (deutsch)
  • Brochure: Food Analysis - Quality control in the food and beverage industry (english)
    • Brochure: Food Analysis - Quality control in the food and beverage industry (français)
    • Brochure: Food Analysis - Quality control in the food and beverage industry (deutsch)
    • Brochure: Food Analysis - Quality control in the food and beverage industry (español)
  • Declaration of conformity for 781 pH/ion meter (english)
  • Instructions for Use 780/781 pH/Ion Meter: Operation via RS-232, English (english)
  • Manual for 780/781 pH/Ion Meter (english)
    • Manual for 780/781 pH/Ion Meter (français)
    • Manual for 780/781 pH/Ion Meter (deutsch)
    • Manual for 780/781 pH/Ion Meter (español)
  • Monograph: Analysis of water samples and water constituents with Metrohm instruments (English) (english)
865 Dosimat plus

865 Dosimat plus

2.865.0010

Universal dispensing unit for titration and dosing tasks in the laboratory. Including push-button cable for manual dispensing control and 6.3026.220 exchange unit (20 mL). A multitude of instruments can be connected at the USB interface of the Dosimat plus, even a number of them simultaneously when a USB hub is used (keyboard, mouse, USB compact printer or USB DIN A4 printer, USB Memory Stick for methods and data backup). The optional 6.2148.030 USB/RS-232 Adapter Box enables the connection of laboratory balances and operation with a computer.

With its four dosing modes, the Dosimat plus offers a multitude of applications:

DOS (Dosing) – Dosing at the press of a button

This mode is particularly suitable for performing manual titrations with indicator. A result can be calculated and a result report can be printed automatically from the dosed volume.

XDOS (Extended dosing) – Controlled dosing

  • Fixed volume dosing: The volume and the dosing rate are specified.
  • Time-controlled dosing: The volume and the time are specified.
  • Dosing according to dosing rate: The dosing rate and the time are specified.

If continuous dosing without interruption is required, then the 865 Dosimat plus can be operated together with an 805 Dosimat in tandem mode.

CNT D (Content dosing) – Preparation of standard and other solutions.

The volume of the solvent to be dosed is determined automatically on the basis of the sample size of the starting substance (solid or stock solution) and the specified target concentration.

LQT (Liquid transfer) – Pipetting and diluting of liquids.