| Input specifications |
Two or four electrode measurement with cell constant from 0.008 to 50.0 cm -1 |
| Detection method |
Frequency, read-pulse position and reference voltage are dynamically optimized. |
| Input ranges |
| - Conductivity : |
0.000 micro S/cm to 1999 mS/cm at 25 degrees C (77 degrees F) reference temperature. |
| |
Minimum : |
1 micro S x C at process temperature
(underrange 0.000 micro S/cm). |
| Maximum : |
500 mS x C at process temperature
(overrange 1999 mS x C). |
| - Resistivity : |
0.000 k ohm - 999 M ohm/C at 25 degrees C (77 degrees) reference temperature. |
| |
Minimum : |
0.002 k ohm/C at process temperature
(underrange 0.000 k ohm x cm). |
| Maximum : |
1 M ohm /C at process temperature
(overrange 999 M ohm x cm). |
| - Temperature |
|
Pt1000 : |
-20 to +250 degrees C (0 - 500 degrees F) |
| Pt100 and Ni100 : |
-20 to +200 degrees C (0 - 400 degrees F) |
| 8K55 NTC : |
-10 to +120 degrees C (10 - 250 degrees F) |
| PB36 NTC : |
-20 to +120 degrees C (0 - 250 degrees F) |
|
| Span |
| - Conductivity : |
- min. 0.010 micro S/cm,
- max. 1999 mS/cm. (max 90% zero suppression) |
| - Resistivity : |
- min. 0.001 k ohm x cm
- max. 999 M ohm x cm. (max 90% zero ppression) |
| - Temperature : |
Dependent on temp. sensor |
| Sensor type |
min. |
max. |
| Pt1000 |
25 degrees C
(50 degrees F) |
250 degrees C
(500 degrees F) |
| Pt100, Ni100 |
25 degrees C
(50 degrees F) |
200 degrees C
(400 degrees F) |
| PB36 NTC, 8K55 NTC |
25 degrees C
(50 degrees F) |
100 degrees C
(200 degrees F) |
The instrument is user programmable for linear or non-linear conductivity ranges. |
| Transmission Signals |
Two isolated outputs of 0/4-20 mA
DC with common negative.
Maximum load 600 ohm.
Auxiliary output can be chosen from conductivity, resistivity,
temperature or PI control Burn up (22 mA) or Burn down (0/ 3.5 mA) to signal failure. |
| Temperature compensation |
| Automatic, for temperature ranges mentioned under C (inputs). |
| - Reference temp. : |
programmable from 0 to 100 degrees C or
30 - 210 degrees F (default 25 degrees C). |
|
| Compensation algorithm |
According IEC 746-3 NaCl tables (default).
Two independent user programmable temperature coefficients,
from 0% to 3.5% per degree C (degree F) by adjustment or calibration. |
| - Matrix compensation : |
with conductivity function of concentration and temperature.
Choice of 5 preprogrammed matrixes and a 25-point user programmable matrix. |
|
| Display |
Custom liquid crystal display, with a main display of 3 1/2 digits 12.5
mm high. Message display of 6 alphanumeric characters, 7 mm
high. Warning flags and units (mS/cm, k ohm.cm, micro S/cm and
M ohm.cm) as appropriate. |
| Contact Outputs |
| - General : |
Four (4) SPDT relay contacts with LED indicators. For S1, S2, and S3, the LED is on when relay is powered.
Contact outputs configurable for hysteresis and delay time. |
| - Switch capacity : |
Maximum values 100 VA, 250 VAC, 5 Amps.
Maximum values 50 Watts, 250 VDC, 5 Amps. |
| - Status : |
High/low process alarms, selected from conductivity, resistivity and temperature.
Contact output is also available to signal "Hold active" |
| - Control function : |
On / Off
PI pulsed - Proportional duty cycle control with integral term.
PI frequency - Proportional frequency control with integral term.
In addition FAIL alarm for system and diagnostic errors on S4 |
|
| Contact Input |
| Remote range switching to 10 times the programmed range. |
| - Contact open : |
If impedance > 100 k ohm: Range 1 |
| - Contact closed : |
If impedance < 10 ohm: Range 2 (10 x Range 1) |
|
| Power Supply |
- 230 VAC +/- 15%, 50/60 Hz, maximum consumption 15 VA.
- 115 VAC +/- 15%, 50/60 Hz, maximum consumption 15 VA.
- 100 VAC +/- 15%, 50/60 Hz, maximum consumption 15 VA. |
| Input isolation |
1000 VAC or 2100DC |
| Shipping Details |
Package size w x h x d
290 x 225 x 170 mm.
11.5 x 8.9 x 6.7 in.
Packed weight approx. 2.5 kg (5lb). |
