Battery-operated pH meters, Knick Portamess® 911 to 913 series
Portable. With a range of functions equivalent to high-quality laboratory bench models. Simple operation via the graphics interface. Waterproof housing. Compact, ergonomically designed, comfortable to handle shape. For industrial applications, environmental protection, food production and water/waste water analysis.lt;BR>Supplied with batteries, electrode holder, carrying strap (electrode not included).

Portamess® 911 pH, basic instrument.

Measuring ranges:
-pH: -2.00 to +16.00
-mV: -1300 to +1300
-°C: -20.0 to +120 °C.
Measuring error (±1 Digit):
-pH: < 0.01
-mV: < 0.1 % of value ±0.3 mV
-°C: < 0.3 K.

Electrode adjustment: Calimatic® automatic calibration with automatic buffer recognition, choice of 8 buffer sets.
Temperature compensation: Pt 1000 / NTC 30 kW (automatic recognition when switching on) or manual.
Interference suppression: EN 50 081-1 and EN 50 081-2.
Interference immunity: EN 50 082-1. EN 50 082-2 and NAMUR NE 21.
Housing: PA, IP 66 protection level with integral electrode sleeve.
Operating hours: 2000 with 3 AA cell batteries.
Dimensions(W x D x H): 133 x 30 x 160 mm.
Weight: Approx. 560 g including batteries.

Portamess® 912 pH, with memory function.
As 911 pH, but with additional time function: Built-in real-time clock with date. Memory: for 100 measurements: pH/mV, °C, time and date. Electrode adjustment: manual calibration with any two buffers is also possible.

Portamess® 913 pH, equipped for digital communication.
As 912 pH, but with additional interface: serial, bidirectional, synchronous, 4800 Baud, can be configured as a printer or computer interface. Data logger: manual, interval or event-controlled. Interface cable : 1metre, with universal plug, either for PC or printer connection.

Type Portamess® 911 X