Bench pH Meters

• Sleek design with easy touch-pad operation
• Large display screen with improved graphics

All meters feature a IP43 rated housing, RS232 output, include a flexible electrode arm and a 3-in-1 refillable, epoxy body electrode. 3-in-1 electrode measures pH and temperature, and has a patented Ag ion barrier internal reference which makes it compatible with Tris buffers.

Model 530P Basic Meter

• Easy to operate with minimal training

Basic, reliable meter provides accurate, efficient digital measurements for educational or routine laboratory applications. Simplified operation and automatic temperature compensation make this meter easy to use with minimal training. Measure and display pH or mV and temperature simultaneously. Three-point calibration and % slope readout.

Model 540P Meter

• Date and time stamp capability

Features advanced software for completely automatic performance to make your work easier. All-purpose meter offers the accuracy required for advanced academic and research applications. Measure and display pH; or mV and temperature simultaneously. Features automatic buffer recognition with three-point calibration, automatic temperature compensation, self-diagnostics testing, % slope readout, and auto endpoint. Non-volatile memory retains calibration data during power loss.

Model 545P Advanced/Research Meter

• Ideal for GLP requirements

Sophisticated software and microcomputer technology make this most flexible benchtop meter. Special user functions such as the 800 point data logger, selectable high/low alarm, and timer suit this meter for applications from high-volume quality control laboratories to cutting-edge research facilities.

Automatic and manual temperature compensation give the operator more control. Automatic read and endpoint sensing combine to reduce the number of keypad operations required for calibration and sample measurement. Self-diagnostic test checks the meter upon start-up. Non-volatile memory will retain calibration and measurement data during power loss. Displays pH; or mV and temperature with selectable pH resolution down to 0.001. Other features include % slope readout and three-point calibration.

Model 555P pH/Ion Meter

• Two independent channels with a split display and dual electrode reference sockets

Meter uses advanced software and technology to ensure accurate, reliable, and precise results. Sophisticated microprocessor technology runs complete measurements and analysis upon start-up. Automatic read and endpoint sensing. Multiparameter LCD provides readings, user promts and help messages. Calibration data, sample readings and experimental conditions provided by the "Good Laboratory Practices" menu. UL/CSA/FCC/IEC/CE listed.

SPECIFICATIONS
Model Number	530P	540P	545P	555P
Modes:	pH, mV, °C	pH, mV, °C	pH, mV, °C	pH, mV, Ion, °C
Ranges:
pH:	-2 to 19.99	-2 to 19.999	-2 to 19.999	-2 to 19.999
mV:	±1999	±999.9, ±1999	±999.9, ±1999.9	±999.9, ±1999.9
Concentration	-	-	-	0 to 1,999
Temperature	-5 to 105°C	-5 to 105°C	-5 to 105°C	-5 to 105°C
Resolution:
pH (Max)	0.01	0.001	0.001	0.001
mV	1	1	0.3	0.2
Concentration	-	-	-	0.001
Temperature	0.1°C	0.1°C	0.1°C	0.1°C
Calibration Points:	3	3	3	3

For Government Users