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Section 1
Introduction
1.1 Instrument Description
The Model 3520 is a fully specified laboratory pH/mV/Temperature meter that includes full support
for good laboratory practices (GLP). The meter supports 1, 2 or 3 point pH calibration on either
manually entered pH buffers or automatically temperature compensated buffers to DIN, JIS and
NIST standards. Powerful data logging capabilities are included with the ability to store up to 500
readings either manually, at timed intervals or on alarm events.
1.2 Instrument Specification
pH (1, 2 or 3 point cal)
Range:
-2.000 to 20.000pH
Resolution:
0.001 / 0.01 / 0.1pH
Accuracy:
±0.003pH
mV (Absolute or Relative)
Range:
-1999 to +1999mV
Resolution:
0.1mV
Accuracy:
±0.2mV
Input Impedance:
>10
12
ohms
Temperature Measuring
Ranges:
-10 to +105°C / 14 to 221°F
Resolution:
0.1°C / 1°F
Accuracy:
±0.5°C / ±1°F
ATC Range:
0 to 100°C / 32 to 212°F
Manual Temp. Compensation:
0 to 100°C / 32 to 212°F
Auto Buffer Selection:
Jenway (2.00, 4.00, 7.00, 9.20 and 10.00)
DIN (3.06, 4.65, 6.79, 9.23, 12.75)
NIST (1.68, 4.01, 6.87, 9.18, 12.45)
JIS (1.68, 4.01, 6.87, 9.18, 12.45) or manually entered buffers
Calibration:
User selectable 1, 2 or 3 point
Outputs:
Analogue 1mV per 0.01pH
RS232 serial and IrDA printer interface
Alarm - open collector
Clock:
24 hours, hrs/min/sec or day of month/month/year, leap year
corrected (European and American formats)
GLP:
Calibration reminder interval (1-999 hours)
Alarm outputs (open collector and audible)
Security code protected user data
Display:
Back lit 1/8 VGA monochrome LCD
Languages
:
English, French, German, Italian, Spanish, Portuguese
Power:
Power Supply 9Vac
Size:
275(l)x240(w)x150(d)mm
Weight:
850g
352 050/REV A/03-03
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Содержание 3520
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