H72.0.11.6C-04
Operating Manual GMH 3451
page 18 of 18
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18 Specification
Measuring
ranges
Anzahl
5
Conductivity 1 *) 0,0 ... 200,0 µS/cm
” 2 *) 0 ... 2000 µS/cm
” 3 *) 0,00 ... 20,00 mS/cm
” 4 *) 0,0 ... 200,0 mS/cm
” 5 *) 0 ... 400 mS/cm
Resistivity
0,005 ... 100,0 kOhm*cm
TDS
0,0 ... 1999 mg/l
Salinity
0,0 ... 70,0 g/kg (PSU)
Temperature
-5,0 ... +100,0 °C
23,0 ... 212,0 °F
Accuracy Conductivity ±0,5%
v.MW ±0,3 % FS or ±2 µs/cm
Temperature ±0,2
K
Connections Conductivity/
Temperature
Permanently connected measuring cell
Interface
Analogue output
Serial interface (3.5mm jack) can be connected to USB or RS232 interface of a PC
via electrically isolated interface adapter USB3100, USB 3100 N, GRS3100 or
GRS3105 (see accessories). Alternative selectable analogue output 0-1V
Measuring cell
Four-electrode-conductivity-measuring cell with integrated temperature sensor
Electrode material special graphite
Shaft material
epoxy
Size
dia. 12 mm, length 120 mm
Ambient condition -5 … +80°C (continuous) up to +100°C (short-duration)
Display
4 digit 7-segment (main and secondary display) with additional symbols
Additional functions
Min / max / hold
Adjustment/Calibration
Cell correction manually or automatically via selectable reference solution
Data logger
Real-time clock
Cyclic: 10000 data sets, cycle time selectable: 1s … 60 min
Single: 1000 data sets (with measuring point input, 40 selectable measuring point
texts or numbers)
Alarm
2 alarm channels with separate limit values for conductivity (or resistivity, TDS, SAL)
and temperature
Alerting: buzzer / visual / interface
Housing
Break-proof ABS housing
Protection class
Front side IP65
Dimensions
L*W*H [mm]
142 x 71 x 26 mm
(L x W x H)
Working conditions
-25 to 50 °C; 0 to 95 % RH (non condensing)
Storage temperature
-25 to 70 °C
Power supply
9V-battery, typ IEC 6F22 (included in scope of supply) or external
Current
consumption
2 mA (Out = Off)
Battery indicator Automatically if battery exhausted
and ’ bAt ’
Auto-Off-Function
Device will be automatically switched off if no key is pressed/no interface
communication takes place for the time of the power-off delay. The power-off delay
can be set to values between 1and 120 min.; it can be completely deactivated.
Directives and standards
The instruments confirm to following European Directives:
2014/30/EU
EMC
Directive
2011/65/EU
RoHS
Applied harmonized standards:
EN 61326-1 : 2013
emissions level: class B
emi immunity according to table 3 and A.1
Additional fault: <1%
