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Welcome to Weiss Research - your high quality, inexpensive laboratory and industrial processing pH, ORP (Redox), Ion-Selective electrode (ISE) Headquarters.

Electrodes

  pH Electrodes  
  ORP Electrodes  
  Ion-Selective  
  Conductivity  
  Reference  
  Temperature  

Meters

 

pH/mV Meter

 
 

Ion/pH Meter

 

Conductivity

 
Reagents
 

pH Buffer & etc.

 
  ORP Standard  
 

ISE Std & etc.

 
  Conductivity Std  
     
 

Connectors

 
     
     
 

Ion/ pH/ ORP/ mV/ Temperature Meter Model 6251

This meter not only can display the ion concentration directly but also can be used as pH meter, ORP meter, mV meter and Temperature meter.

  • pH buffer recognition: pH 7.00, 4.01 & 10.01
  • High resolution: 0.001/0.01 pH; 0.1/1.0 mV (selectable)
  • Direct readout in ion concentration
  • CE approved
  • Auto/manual temp. compensation
  • Splash resistant / Watertight case
  • Highly reliable mechanical touch keys with tactile & audio feedback
  • Power down memory backup
  • battery/AC adaptor
  • High 50/60 Hz AC noise rejection

6251-meter, Ion/pH/mV/temp with AC adaptor......... $295.00 6251 AC adaptor ...................................................$10.00
6251-ATC, temperature probe, 3ft cable .................. $69.00

Specifications

 

Range

Resolution

Accuracy

pH

-2.000 to +16.000 pH

0.001/0.01

0.1% 1 digit

mV

-1999.9 to +1999.9

0.1/1.0 mV

0.1% 1 digit

Temp.

-5.0 to +125.0 C

0.1 C

0.5 C

Ion

0.000 to 19900

one least significant digit

2 LSD

 

 pH temp. compensation

 Auto/Manual: -5.0 to +125.0 C

 

pH buffer temp. range

0 to 50 C

 

 

pH electrode offset recognition

90 mV

 

 

pH electrode slope recognition

30%

 

 

pH standardization

Single or dual point

 

 

Ion standardization

Single point

 

 

Input impedance

>1013 Ohm

 

 

ATC probe

Thermistor (10K Ohm at 25 C)

 

 

Communication

RS232C output

 

 

Power back

Memory Backup

 

 

Audio Feedback

All touch keys

 

 

Display:  pH/mV Temp

15 mm 8.7 mm high LCD

 

 

Ambient temp. range

0 to 50 C

 

 

Power supply: batteries/adaptor

6 AAA batteries/115V or 230V AC

 

 

Battery life (alkaline)

~25 hrs

 

 

Dimensions (W x L x H)

83 x 421 x 71 mm

 

 

Weight

450 gm (batteries included)

 

 

2005 Weiss Research, Inc. P.O. Box 720109, Houston, TX 77272, USA, 281-879-9666 (fax), 281-561-6102

2005 Weiss Research, Inc. P.O. Box 720109, Houston, TX 77272, USA, 1-800-299-2082;  832-369-7682 (fax)