7
1.9 Specifications
Mode
Range
Resolution
Accuracy
Specific Ions
Auto-ranging in units of
ppM, ppK, % and
Exponential Notation
User selectable for 3
significant digits, 2
significant digits or Auto-
rounding.
± Least significant digit
pH
0 to 14.000 pH
0 to 14.00 pH
0 to 14.0 pH
0.001 pH
0.01 pH
0.1 pH
±0.002 pH
±0.01 pH
±0.1 pH
mV
0 to ±500.0 mV
0 to ±1500 mV
(auto-ranging)
0.1 mV
1 mV
±0.15 mV
±1 mV
Relative mV
0 to ±500.0 mV
0 to ±1500 mV
(auto-ranging)
0.1 mV
1 mV
±0.15 mV
±1 mV
Temperature
-10.0 to 120.0
O
C
0.1
O
C
±0.2
O
C
Additional Specific Ion Specifications
Input Impedance
: >3 x 10
12
Ω
Asymmetry Range
: Auto detection
Slope Range
: 50.0 to 110.0 %
Temperature Compensation
: Automatic, 0 to 100
O
C
Calibration
: Automatic calibration in user-definable standards.
Additional pH Specifications
Input Impedance
: >3 x 10
12
Ω
Asymmetry Range
: -1.00 to 1.00 pH
Slope Range
: 85.0 to 105.0 %
Temperature Compensation
: Automatic, 0 to 100
O
C
Calibration
: Automatic calibration. Automatic recognition of pH4.00, 6.88, 7.00,
9.22 and 10.06 buffers. Manual entry of any other buffer value.
Additional Temperature Specifications
Temp. Sensor Offset Range
: -10.0
o
C to +10.0
o
C
General Specifications
Memory
: 1200 readings including date and time
Automatic Logging
: User-set for one reading every 1 to 90 seconds, minutes or hours.
RS232 Port (optional)
: 300, 1200 & 9600 baud.
8 bits, no parity, 1 stop bit, XON/XOFF Protocol.
Clock
: Calendar clock displays date, month, year, hours, minutes & seconds.
Good Laboratory Practices
: Date, Time and Value of last Ion and pH calibration for each Channel,
plus Temperature calibration are stored. This information can be
recalled or sent to the optional RS232 port at any time.
Power
: 12V DC, 50mA. Plug-pack power supply is included in standard kit.
Dimensions
: 270 x 210 x 75 mm
Mass
: Instrument only : Approx. 1.0 kg
Full Kit
: Approx. 3.0 kg
Environment
Temperature
: 0 to 45
O
C
Humidity
: 0 to 90 % R.H.