The Model 3345 Laboratory Ion Meter |
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Dual Display Simultaneous display of primary and secondary measurements. A Switch Screen key is used to toggle the input channel priority. Ease of Use A simple push-button control panel, used in conjunction with the display, ensures that even inexperienced operators can achieve reliable results. Dual Input (Rear Panel) The Model 3345 Laboratory Ion Meter features two independent input channels for both sensor and temperature monitoring. A socket is provided for connection to an optional overhead or bench stirrer which can then be controlled directly from the instrument keypad. Set Up Menus Set-up menus are provided on the Model 3345 Laboratory Ion Meter to give access to all user defined options. |
Languages Clear user instructions
are available in six language options, (English, French, German, Italian,
Portuguese or Spanish), operator selectable via the instrument set up
mode.
Calibration A choice of 1 to 3 point calibration is offered for pH
measurement and 1 to 5 point calibration
in Ion mode. The Model 3345 will automatically recognize 2,4,7,9 and 10pH
buffers with a manual override facility.
Incremental Methods The Model 3345 Laboratory Ion Meter is programmed to
make the calculations necessary when carrying out Known and Sample Addition and
Subtraction, and Multiple Sample Addition.
Sample Measurement Icons and prompts guide the user through calibration and
measurement routines.
GLP Essential to the modern laboratory GLP protocols are fully supported.
Product performance is continually monitored, with all logged results being time
and date stamped, thus satisfying the requirements of Good Laboratory Practice.
RS232 / Analog Outputs The Model 3345 can download directly to a computer or
printer by the bi-directional RS232 link and provides an analogue output for
connection to a chart recorder or datalogger.
Other Ion Meters available from Techne® are the Model 3205 Portable Ion Meter and the Model 3340 Laboratory Ion Meter.
Model 3345 Specifications |
| pH | |
| Range | -2 to 19.999pH |
| Resolution | 0.1 / 0.01 / 0.001pH |
| Accuracy | ±0.003pH |
| mV | |
| Range | -1999.9 to 1999.9mV |
| Resolution | 0.1mV |
| Accuracy | ±0.2mV |
| Concentration | |
| Range | 1 x 10-9 to 9.99 x 109 |
| Units | Activity, ppm, %, mg/l, M or none |
| Resolution | 3 significant digits |
| Accuracy | ±0.003pX for monovalent ions |
| Measurement Methods | Direct potentiometry / Incremental |
| Input Impedance | >1013 Ohms |
| Number of Electrode Inputs | 2 |
| Temperature | |
| Range | -10 to 105ºC / 14 to 221ºF |
| Resolution | 0.1ºC / 1ºF |
| Accuracy | ±0.5ºC / ±1ºF |
| ATC Range | 0 to 100ºC / 32 to 212ºF |
| Manual Temperature Compensation Range | 0 to 100ºC / 32 to 212ºF |
| Number of Temperature Inputs | 2 |
| Auto Buffer Recognition | 2, 4, 7, 9 and 10pH buffers with manual override facility |
| Calibration | 1, 2 or 3 point pH / 1, 2, 3, 4 or 5 point Concentration |
| Outputs | Analog 1mV per digit / Bi-directional RS232 / hi-lo alarm outputs open collector 0.5A 50V max |
| Datalogger | 100 results |
| Clock | 24 hour, hour/min/sec or day of month/month/year - Leap year corrected |
| Alarm Points | -2 to 19.999pH / ±1999.9mV / 1 x 10-9 to 9.99 x 109 |
| Good Laboratory Practice | Calibration reminder with an interval of 1 to 999 hours from last calibration. Timed printout with an interval from 1 second to 1 day |
| Display | LCD Graphics |
| Power | Power supply 9V AC |
| Size | 275(l) x 240(w) x 150(d)mm |
| Weight | 1.2Kg |
Model 3345 Order Codes |
| 548 001 | Model 3345 Laboratory Ion Meter supplied with glass bodied combination electrode (924 005), swing arm electrode holder (903 200), ATC probe (027 232), English instruction manual, 4 & 7 pH buffer capsules, UK power supply (021 030) and BNC to Leadless electrode cable (013 173). |
| 027 232 | Temperature Probe |
| 013 173 | Electrode lead (BNC to Leadless) |
