User Guide

9
9
indication in ºC
pH : Switches display to pH indication
I.
pH/ºCpH/ºC
pH/ºCpH/ºC
pH/ºC LCD display the selected
measurement depending on the position of
H.
J.
OFFSETOFFSET
OFFSETOFFSET
OFFSET knob for calibration of pH in
neutral buffer solution (pH 7.01 at 25ºC).
K.
SLOPESLOPE
SLOPESLOPE
SLOPE knob for calibration of pH in acid (pH
4.01 at 25ºC) or alkaline (pH 10.01 at 25ºC)
solution.
L.
SET/MEASURESET/MEASURE
SET/MEASURESET/MEASURE
SET/MEASURE, selector switch for LCD
display
M.
SET-POINTSET-POINT
SET-POINTSET-POINT
SET-POINT, adjust the set-point of pH
N.
DISPLAYDISPLAY
DISPLAYDISPLAY
DISPLAY, LCD display for pH measure-
ment or pH set-point.
REAR PANELREAR PANEL
REAR PANELREAR PANEL
REAR PANEL
See Figure 1.
K.
AC POWER CORDAC POWER CORD
AC POWER CORDAC POWER CORD
AC POWER CORD or battery plug for
model HI 190MB.
L.
ON/OFF ON/OFF
ON/OFF ON/OFF
ON/OFF switch for power supply.
M.
FUSEFUSE
FUSEFUSE
FUSE holder for 200 mA or 1A fuse
depending on models.
NOTE:NOTE:
NOTE:NOTE:
NOTE: HI 190M, HI 190MB and HI 200M are not
provided with ON/OFF switch.
They are switched on when there is a power
supply input.
Fig. 1
istrstirR2.p65
10
10
USEUSE
USEUSE
USE
HI 190M or
HI 190MB or
HI 200M
HI 300N
HI 310N
APPLICATIONSAPPLICATIONS
APPLICATIONSAPPLICATIONS
APPLICATIONS
1. Newtonian fluids up to
1 litre
2. Newtonian fluids up to
2.5 litres
3. Non-Newtonian fluids
up to 5 litres whose vis-
cosities change during
stirring or Newtonian flu-
ids up to 5 litres or mixing
operation where load
changes during stirring.
Fig. 2
MINI AND GENERAL PURPOSE STIRRERSMINI AND GENERAL PURPOSE STIRRERS
MINI AND GENERAL PURPOSE STIRRERSMINI AND GENERAL PURPOSE STIRRERS
MINI AND GENERAL PURPOSE STIRRERS
Models: HI 190M, HI 190MB, HI 200M, HI
300N normal stirrers and HI 310M Auto Speed
stirrer
These general purpose stirrers are suitable for
daily stirring applications in the laboratory. The
HI 190M, HI 190MB and HI 200M are compact
designed mini stirrers of 1 litre capacity suitable
for use on crowed benches. The HI 190M and
HI 190MB are enclosed completely in chemical
and impact resistant plastic housing. The HI
200M, HI 300N and HI 310N are covered with
a corrosion resistant stainless steel top.