conductivity measuring device | GMH 3451
541,00 EUR
inkl. 19 % USt -> Preis zzgl. Versandkosten
Lieferzeit i.d. Regel ca. 0-4 Arbeitstage für Standardausführung
Art.Nr.: GMH3451Produktbeschreibung
conductivity measuring device incl. 4-pole measuring cell, with data logger
- display of resistivity, salinity or TDS (total dissolved solids)
- in accordance to the regulations of the drinking water ordinance (TrinkwV 2001) and DIN EN 27888
- data logger, analog output and min/max alarm
| measuring ranges: | conductivity: 0.0 μS/cm to 200.0 μS/cm 0 μS/cm to 2,000 μS/cm 0.00 μS/cm to 20.00 mS/cm 0.0 μS/cm to 200.0 mS/cm 0 mS/cm to 400 mS/cm manually selectable or AutoRange temperature: -5.0°C to +100.0°C resistivity: 0.005 kOhm * cm to 100.0 kOhm * cm salinity: 0.0 g/kg to 70.0 g/kg water TDS: 0 mg/l to 1,999 mg/l |
| accuracy (±1 digit) (at nominal temperature = +25°C): | conductivity: ±0.5 % of m.v. ±0.3 % FS or ±2 μS/cm temperature: ±0.2 % of m.v. ±0.3 K |
| cell correction: | adjustable 0.800 cm-1 to 1.200 cm-1 manually or automatically with selectable reference solution |
| temperature compensation: | automatical or disengageable, by temperature sensor integrated in the electrode |
| type of compensation: | nLF: non-linear function of natural waters acc. to DIN EN27888 (ISO 7888) (reference temperature selectable: +20°C or +25°C) Lin: linear compensation from 0.3 %/K to 3.0 %/K (reference temperature selectable: +20°C or +25°C) off: no compensation |
| display: | two 4 digit LCD displays (12.4 mm or 7 mm high) for conductivity (resistivity, salinity, TDS) and temperature, or for min, max value, hold function, etc. and additional indicator arrows |
| measuring cell: | conductivity measuing cell with integrated temperature sensor in shaft, electrode material: graphite. shaft material: Epoxide (GMH 3451), the graphite electrodes are an excellent solution for sewage and can be cleaned easily, GMH 3431: 2-pole; GMH 3451: 4-pole 4-pole measuring cell: better long-term stability at high conductivity values (>20 mS/cm) and for harsh environments, stable measuring values even in polluted media (e.g. sewage, salt water) |
| warranty for sensor element: | 12 months |
| analog output: | 0 V to 1 V, freely scalable, connection via 3-pole jack socket, Ø 3.5 mm, resolution 13 bit, accuracy 0.05 % at nominal temperature |
| data logger: | cyclic: 10,000 data sets, manual: 1,000 data sets (with measuring point input, 40 adjustable measuring point texts or measuring point numbers) |
| working conditions: |
device: -25°C to +50°C, 0 % to 95 % r. h. measuring cell: -5°C to +80°C (permanent) to +100°C (short-term) |
| relative humidity: | 0 % to +95 % r.h. (non-condensing) |
| interface: | serial interface, connectable to RS232 or USB interface of a PC via electrically isolated interface converter GRS 3100, GRS 3105 or USB 3100 N (accessories) |
| control elements: | 6 membrane keys for ON/OFF-switch, selection of meas. range, min and max value memory, hold-function, etc. |
| power supply: | 9 V battery as well as additional power supply unit (1.9 mm internal pin Ø) for external 10.5 V to 12 V DC supply (suitable power supply: GNG10/3000) |
| battery life: | approx. 150 h |
| housing: | impact-resistant ABS plastic housing, membrane keyboard, transparent panel, integrated pop-up clip |
| dimensions: | device: 142 x 71 x 26 mm (H x W x D) electrode shaft: approx. 120 mm long, Ø approx. 12 mm, 1 m permanently fixed connection cable between electrode and device |
| weight: | approx. 230 g (incl. battery and measuring cell) |
catalogue page as .pdf:
instruction manual as .pdf:
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