Yokogawa EXA DC402 Dual-Channel Conductivity Analyzer - Manual (Page 9)

IM 12D08E02-01E
2-2 Specification
H. Display : Custom liquid crystal display,
with a main display of 3 1 /
2
digits 12.5 mm high. Message
display of 6 alpha numeric
characters, 7 mm high. Warn-
ing flags and units (mS/cm,
kΩ·cm, µS/cm and MΩ·cm) as
appropriate.
I. Contact Outputs
- General : Four (4) SPDT relay contacts
with LED indicators. For S1,
S2, and S3, the LED is on
when relay power is removed.
NOTE: For S4 (FAIL) LED
lights when relay is
deenergised (Fail
safe).
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.
(PI control on Conductivity/
Resistivity only) In addition
FAIL alarm for sys tem and
diagnostic errors on S4.
J. Power Supply
Supply voltage rating: 115, 230 VAC
Applicable range: 97.8 to 132.2, 195.5 to
264.5 VAC
Supply frequency rating: 50 / 60 Hz
Applicable range: 50 Hz ± 5% / 60 Hz ± 5%
Power consumption: Maximum 10 VA for
steady operation
K. Shipping Details
Package size
: W x H x D
290 x 300 x 290 mm.
11.5 x 11.8 x 11.5 in.
Packed weight
:approx. 2.5 kg (5lb).
2-2. Operating specifications
A. Performance : Conductivity
- Linearity : ± 0.5 % FS
- Repeatability : ± 0.5 % FS
- Accuracy : ± 0.5 FS
Performance : Resistivity
- Linearity : ± 0.5 FS
- Repeatability : ± 0.5 % FS
- Accuracy : ± 0.5 % FS
Performance : Temperature with Pt1000Ω,
Ni100Ω and PB36 NTC
- Linearity : ± 0.3 °C
- Repeatability : ± 0.3 °C
- Accuracy : ± 0.3 °C
Performance : Temperature with PT100Ω
and 8k55Ω
- Linearity : ± 0.4 °C
- Repeatability: ± 0.4 °C
- Accuracy : ± 0.4 °C
Note; The following tolerance are added to
above performance.
mA output tolerance : ± 0.02 mA of
"0/4 - 20 mA"
Digital display tolerance: +1 digit
Performance : Temperature compensation
- NaCl table : ± 1 %
- Matrix : ± 3 %
- Step response: 90 % (< 2 decades) in ≤ 6
seconds
B. Ambient operating temperature
: -10 to +55 °C (14 to 131 ºF)
C. Storage temperature
: -30 to +70 °C (-20 to 160 ºF)
D. Humidity
: 10 to 90% RH non-condensing