User manual

H70.0.21.6C-01 Operating Manual GMH 3511 page 13 of 14
12 Specification
Measuring ranges pH 0,00 ... 14,00 pH
ORP / mV -1999 … 2000 mV
Relating to hydrogen system: -1792 .. +2207 mV
H
(bei 25°C, DIN 38404)
Temperature -5,0 ... +150,0 °C, Pt1000
23,0 ... 302,0 °F
Accuracy pH ±0,01 pH
ORP / mV ±0,1% FS
Temperature ±0,2 K (in the range of -5,0…100,0°C)
Working conditions -20 to 50 °C; 0 bis 95 % r.F. (non condensing)
Storage temperature -20 to 70 °C
Connections pH, ORP BNC- socket, additional connection for reference electrode: 4mm banana socket
Temperature Pt1000 via 4 mm banana socket
Interface 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) or analog output 0-1V
external supply d.c. connector (diameter of internal pin 1.9 mm) for external 10.5-12V direct
voltage supply. (suitable power supply: GNG10/3000)
Input resistance pH, OPR >10
12
Ohm
Display 4 digit 7-segment (main and secondary display) with additional symbols
pH calibration Automatic 2-point calibration, technical buffer GPH
Additional functions Min / max / hold
Housing Break-proof ABS housing
Protection class Front side IP65
Dimensions
Wight
without BNC connector 142 x 71 x 26 mm (L x B x H) BNC connector at the
devices front end: approx. 13 mm long, about 170 g incl. battery
Power supply
Current consumption
9V battery, type: IEC 6F22 (included in scope of supply), external d.c. supply
< 1 mA (Out = Off)
Change 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.
EMV The device corresponds to the essential protection ratings established in the
Regulations of the Council for the Approximation of Legislation for the member
countries regarding electromagnetic compatibility (2004/108/EG). Additional
fault: <1%