品牌加拿大HOLLINSYS	型号电导率表传感器2401B-0.01

technical  data 
measuring  ranges
0...2.000?s k=0.1, k=0.01
0...20.00?s k=1.0, k=0.1, k=0.01 
0...200.0?s k=1.0, k=0.1, k=0.01 
0...2.000ms k=1.0, k=0.1, inductive cell 
0...20.00ms k=1.0, inductive cell 
0...200.0ms inductive cell
0...2.000s  inductive cell
range  indicators
3 green  lamps
display
red  led-display 3?-digit, character high12.7mm
accuracy
0.5%
measuring  frequency
80hz...7khz
measuring  amplitude
70mv and  150mv, conductive cell only
step  response
time  between a conductivity change from 0% to 100% or reverse, measured between 10%  and 90% = 4 seconds
temperature compensation
manual from 0 to  120?c, automatic by an external pt-100 platinum by 2 or 3-wire. the unit  calculates with 25?c when the pt-100 sensor wires are  broken
temperature slope
0.00%/?c  (=without compensation) to 8.00%/?c.
conductivity of water
is  measured and temperature compensated
reference  temperature
25?c
maximum  length of cell cable
cable  capacity is compensated automatically. the max. capacity must be  <0.02?f
limit or  alarm contacts
two floating  change-over contacts can be adjusted over the full range. each can be defined as  a normally open or normally closed contact by an internal slide  switch
adjustment  of the limit contacts
each limit  value can be adjusted by a button on the front panel. the limit value is  displayed by pressing the corresponding button and can be changed with the + or  - button over the full measuring range
status
status:  the limit status is indicated by two green lamps 
hysteresis
10 parts  fixed
contacts  rating
change  over at 6a/230vac with resistive load
contact  live
200`000  operations at max. load, 20`000`000 operation mechanically, without  load 
output  current signal
0. . . 20ma or  4 . . . 20ma over the selected range. 0...20ma or 4...20ma can be defined by an  internal slide switch which is accessible to the user. the output signal is  galvanically isolated
output  impedance
>1mw at  20ma
maximum  load
>500w
supply  voltage
230v/50-60hz, ca. 8va
ce-conformity
fulfilled
case
black  plastic case 96 x 96 mm
mounting
2 mounting  clamps
terminals
2 plug-in  screw terminals for supply, limit contacts and signals
cut  out
91 mm x 91  mm, depth 158 mm.
weight
670 grams  (23.5 ounces)
options
different  cell constants
leak proof  housing ip54
supply  voltages: 230vac
output  signal voltage
limit  contacts with different hysteresis
output  current with signal isolation