Specifications Portamess  911 Ph - ProMinent Portamess 911 pH Instruction Manual

Specifications Portamess
Ranges pH:
mV:
°C:
Display LC display 35 x 67 mm, character height 15 mm
Measurement approx. 1 s
Cycle
Measurement Error pH:
(± 1 count)
mV:
°C:
Input DIN 19 262
12 W
Input Resistance > 1 x 10
-12
Input Current < 1 x 10 A
(20 °C)

Electrode Stan- Calimatic automatic calibration with automatic buf-
dardization fer recognition (German patent 29 37 227)
manual electrode standardization

Meter and Elec- Sensoface :
trode Monitoring
Meter self test:
Temperature Com- Pt 1000 / NTC 30 kW
pensation
(automatic recognition during power-on) or manual
Data Retention configuration and calibration data, factory settings
> 10 years
Auto Switch-off after 1 hour
EMC Emitted interference:
EN 61 326 Class B
Immunity to interference:
EN 61 326, EN 61 326/A1 and NAMUR NE 21
Environmental Operation:
Temperature Transport and storage:
Power Supply 3 alkaline AA cells
Operating Time approx. 2,000 h*
* Due to storage, the service life of the included battery may be shorter.

911 pH
-2.00 to +16.00
-1,300 to +1,300
-20.0 to +120.0
< 0.01
< 0.1 % of meas. value ± 0.3 mV
< 0.3 K
evaluates the calibration interval,
zero point, electrode slope, re-
sponse time and glass impedance
of the electrode, optical indication
good/average/poor
during power-on
-10 to +55 °C
-20 to +70 °C
Appendix 25