Model 270 Coulometric Karl Fischer Titrators

In addition to titration control, Model 270 MultiMode Controller offers other measurement modes:

• Conductivity Mode that covers 0 to 3 x 105 in 5 sub-ranges, readout in mS/cm or µS/cm, and measurement of salinity, resistivity and TDS.
• Ion Mode with a range of 9.99 x 109 to 1.00 x 10-9 and direct readout in any units, plus 8 indirect modes.
• pH Mode with selectable resolution to 0.001pH; mV Mode with a range of ±1800.0 mV, absolute or relative, and even direct temperature readout in °C, °F or °K.

Denver Model 275KF Coulometric KF Titration Module
Microprocessor-controlled by Denver Model 270 Titration Controller

Titration Mode
Range	10µg to 20mg H2O
Accuracy	±2µg or ±0.5%
Resolution	0.1µg
Rate	3500µg H2O/min. (maximum)
Endpoint Control	0 to 99 sec. persistence time and 0 to 9.9 µg/sec. slope (programmable)
Capacity	1000mg H2O (for single charge reagents)

Controller Specifications
Displays	4.8"W x 3.6"H Backlit VGA resolution
Titration	Full-screen display of titration progress
Measurement	3/4"H single channel, 5/16"H dual channel
Information	1/8"H for date, time, temperature, standards
Menus	Guide user through all modes and procedures
Help Screens	Context-sensitive aid for keys and procedures
Keypad Controls	Sealed; audible entry
Data Memory Points	620
Power-on Self-test	Yes
Error Messages	Yes
Data Output	On demand; when stable; at selected intervals at titration completion
I/O	RS-232-C to computer or printer; serial net work to titrator modules
Alarm	High/low set points for all modes

Model 270 Additional Modes
Conductivity Range	0 to 3 x 105, ±0.5% µS/cm
Salinity Ranges	0 to 70ppt NaCI equiv. salinity; ±0.5%, 0 to 42 ppt Practical Salinity; ±0.5%
Resistivity	30 to 100 megohmocm; ±0.5%
pH	-2.000 to 20.000; ±0.002
Ion	1.00 x 10-9 to 9.99 x 109; ±0.17n%
mV	±1800.0; ±0.1
Temperature	-5.0° to +105.0°C; ±0.3°C,
Inputs	RS-232-C to computer; two BNC/pin (for pH/ISE/mV); two ATC; conductivity/ATC