User manual

Monitor UPC-900
User Manual 18-1125-55 Edition AE
51
Reference information D
compensated ±0.2 pH within +15 to +25 °C
±0.5 pH within +4 to +15 °C and +25 to
+40 °C
Response time <10 s (0 - 95% of step)
Long term stability Dev. max. 0.02 pH/h (measured at pH 4.0)
Flow rate sensitivity Dev. max. 0.1 pH units
pH flow cell
Flow rate 0.1 - 100 ml/min
Max. pressure 0.5 MPa (5 bar, 72 psi)
Generated back-pressure Max. 0.02 MPa (0.2 bar, 2.9 psi) at
100 ml/min
C.2 Physical data
Control Stand-alone or from a PC with
UNICORN version 3.0 or higher, via
UniNet 1 connection.
Degree of protection
housing IP 20, IP 21
flow cells IP 44
Power requirements 100–240 V AC, 50–60 Hz
Power consumption 25 VA
Functions Languages available; English, German,
Spanish, French, Italian
UV lamp cable length 1.5 m, AMP 5+2 pole connector
Optical unit, cable length 1.5 m, RJ-45 connector
pH electrode cable length 1.5 m, BNC connector
Cond. cell cable length 1.5 m, D-sub 9 pole connector
Tubing connections Fingertight connector, 1/16”
Analogue outputs 0–1 V full scale
Display 2 rows with 20 characters each
Dimensions, H x W x D 100 x 260 x 370 mm
Weight 8.5 kg
Wetted materials
UV flow cells Quartz, ETFE, titanium
cond. flow cell Titanium, CTFE
pH electrode Glass, FFKM (perfluororubber)
flow cell titanium
dummy electrode PTFE (polytetrafluoroethylene)
pH stability range 1–13 (1–14, <1 day exposure)
Typical lamp lifetime
Hg, 254 nm,
room temperatur 7000 hours
coold room 2000 hours
Hg, 280 nm,
room temperature 3500 hours
Zn, 214 nm,
room temperature 2000 hours
Chemical resistance The wetted parts are resistant to organic
solvents and salt buffers commonly used in
chromatography of biomolecules, except
100% ethylacetate, 100% hexane, and
100 % tetrahydrofuran (THF).