G 7500-PH/CON/O2, Portable Multisensor Meter for Water Analysis, Kit with 3 Probes

G 7500-PH/CON/O2, Portable Multisensor Meter for Water Analysis, Kit with 3 Probes

G 7500 is a comfortable multichannel measuring device for water analysis. It measures two parameters and the associated temperature simultaneously.
Kit G 7500-PH/CON/O2 contains three probes for pH/temperature, redox and dissolved oxygen.
All major electrochemical measurements are combinable with these:
* pH/redox + conductivity/salinity
* pH/redox + dissolved oxygen

The illuminated graphic display indicates all parameters in plain text in German or English.
Large display or measurement diagrams are also displayable.

The modern device platform uses the common USB cables for charging the internal (interchangeable) batteries and for reading out the data logger without the need of any additional software or adaptor. 
The logger is read out comfortably like a USB 2.0 pen drive. 


Applications:

• water monitoring
• neutralization processes
• agricultural measurement
• drinking water treatment
• sewage treatment plants
• fish farming and aquaculture
• vertical/urban farming

Technical data:
Input no. 1, pH/redox
Connection: BNC, water resistant
Measuring range: -2.00 ... +16.00pH (±0.25% FS @ 25°C)
                           or -1500...+1500mV redox voltage (±0.25% FS @ 25°C)
Temperature: -10.0 ... +150.0°C (Pt1000) ±0.25 % FS 
                  connection via 4mm banana plug, alternatively via O₂/LF sensor
Temperature compensation: manual, automatic

Input no. 2
Connection: 7-pole bayonet socket
Temperature: -10.0 ... +110.0°C (NTC or Pt1000)
                         measuring range (Pt 1000):
                         -10.0 ... +110.0°C
                         measuring range (NTC 10k):
                         -10.0 ... +110.0°C (integrated in O₂/LF sensor)

Conductivity
     Measuring range: 0µS/cm ... 500mS/cm (±0.5% FS @ 25°C)
     Salinity/PSU: 0.0 ... 70.0g/kg
     Cell constant: 0.3 ... 1.6000 1/cm
Temperatur e compensation:
     Off, linear (0.300..3.000% /K), NLF (according to DIN EN 27888),
     Reference temperature: 20°C or 25°C (adjustable)

Dissolved oxygen
Measuring range: Oxygen saturation: 0.0 ... 500.0% sat
                               Oxygen concentration: 0.0 ... 50.0mg/l
                               Oxygen partial pressure: 0 ... 1013mbar O₂
      (accuracy depending on sensor and calibration, with flow
        >20cm/s, add.. ±1.5 % FS @ 25°C, 100% sat. O₂)
    Temperature compensation: Automatic via connected sensor
    Pressure compensation: Manual, automatic via internal sensor:  500 ... 1100hPa ±4hPa
    Salinity compensation: Manual PSU 0 ... 70g/kg
Additional functions: Text based user guidance (DE/EN), 
                                  Charging via USB socket (3 x AAA rechargeable batteries integrated, interchangeable)
Display: LCD (180 x 128 pixels), monochrome, adjustable background illumination
Interface: USB 2.0, Micro USB socket
Calibration: pH 1 ... 5-point calibration (PHL buffer, DIN buffer)
                        LF cell constant
                        O₂: water-saturated air
Data logger:  8 GB with  FAT file system
Alarm: audible (horn)
           visual (red LCD background)
Power supply: 3 x NiMh AAA (max. 750mAh)
Current drain: ON: ca. 75mA in operation;
                          OFF: ca. <0.1mA
Housing: impact resistant ABS, with integrated stand/hanging bracket
Housing protection: IP67
Dimensions: 160 x 86 x 37mm³ (H x W x D) incl. protection boot
Weight: 300g incl. battery and protection boot

Scope of delivery: 
Device with  3 AAA rechargeable batteries
Probes: GE125-L02, LF425-L02, GWO5610-L02
Case GKK2021
Short manual 
User manual and test protocol as a pdf file on mass storage medium


Optional Accessories:
GWO5610-L02     Probe (spare) for dissolved oxygen, 2m cable
GWO5610-L04     Probe for dissolved oxygen, 4m cable
LF425-L02            Probe (spare) for Conductivity, graphite measuring cell, 2m cable
GE125-BNC-L02  Waterproof pH electrode (spare) with Pt1000, on a 4mm banana connector
KOH 100              KOH spare electrolyte, 100ml
GCAL 3610          Calibration bottle for dissolved oxygen sensors with Ø12mm
GKL- 100              conductivity control solution, 1413µS/cm, 100ml bottle
GKL-102               conductivity control solution, 50mS/cm, 100ml bottle
PHL 4                   ready for use pH buffer solution, pH4 in 250ml dosage bottle
PHL 7                   ready for use pH buffer solution, pH7 in 250ml dosage bottle
PHL10                  ready for use pH buffer solution, pH10 in 250ml dosage bottle
GRL100                HCL/pepsin cleaning solution, 100ml