Technical Specifications - Hach sensION+ MM340 Manual

1. Technical Specifications

Measuring ranges:
pH -2 to 19
mV ± 2000
ISE
10 M to 10 M
-6 -1
Temp -20 to 150 ºC (-4 to 302 ºF)
Resolution
pH 0 .1/0 .01/0 .001
mV
0 .1/1
ISE programable
Temp 0 .1 ºC (0 .18 ºF)
Measuring error
(± 1 digit)
pH 0 .002
mV
0 .2
Temp 0 .2 ºC ( 0 .36 ºF)
Reproducibility
(± 1 digit)
pH ± 0 .001
mV
± 0 .1
Temp ± 0 .1 ºC (± 0 .18 ºF)
Automatic temperature compensation
Manual entrance or with Pt 1000 temperature probe (A .T .C .)
Isopotential pH programmable, standard value 7 .00 .
pH calibration
With 1, 2 or 3 buffers selectable inside the range .
Automatic recognition of technical and DIN 19266 buffers and
up to 3 user's buffers .
Calibration at any pH value (indirect calibration) .
Theoretical calibration .
Manual introduction of the calibration parameters .
Programmable calibration validity between 0 h and 7 days .
Automatic recalibration warning .
Automatic rejection of electrodes in poor conditions .
pH calibration criteria
Asymmetry potential ± 58 mV .
Slope 41 to 62 mV/pH, at 25°C (77 °F) (sensitivity 70 to 105 %) .
mV calibration
Automatic recognition of redox standard 220 mV at 25ºC
(77 °F) .
Calibration at any mV value .
Manual introduction of the calibration parameters .
ISE calibration
2 to 5 programmable standards .
Selectable calibration units mol/l, M, g/l, mg/l, ppm, mmol/l, mM,
µmol/l or % .
Up to 4 calibration curves for each channel .
Temperature readjustment
Correction of the temp . probe deviation (A .T .C .) at 25 ºC (77 °F)
and 85 ºC (185 °F) .
Measuring mode
By stability (selectable stability criteria) . Continuous . By time .
2
Data Logger
Storage capacity up to 400 readings, by channel .
Storage the last 9 pH calibrations .
Languages
English, German, Spanish, French, Italian, Portuguese .
Display
Graphic, backlit liquid crystal, 128 x 64 dots .
Inputs and outputs
2 Combined or indicator electrodes, BNC connector (Imp . >10
2 Reference electrodes, banana connector .
1 A .T .C . type Pt 1000, banana or telephonic connector .
2 Stirrers, RCA connector .
RS232C for printer or PC, telephonic connector .
External PC key board, mini DIN connector .
Ambient conditions
Working temperature 5 to 40 ºC (41 to 104 ºF) .
Storage temperature -15 to 65 ºC (5 to 149 ºF) .
Relative humidity < 80% (not condensed) .
Power supply
External plug-in power supply 220VAC/12 VDC, 3 .3 W .
Materials
Enclosure, ABS and PC . Keypad, PET with protective treatment .
Physical parameters
Weight: 1100 g . Size: 350 x 200 x 110 mm .
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