Yokogawa EXA ISC202 2-wire Conductivity Transmitter/Analyzer - Manual (Page 14)

IM 12D06A03-01E
2-2 Specifications
0
200
400
600
800
12 16
17
20 24 28 32
425
775
Voltage (V)
Load Resistance (
Ω
)
31.5 V
Possible
Fig.2-2 Supply voltage/ load diagram for the ISC202S
J) Temperature compensation:
- Sensor types: Pt1000Ω or 30kΩ NTC
- Automatic: -20 to 140 ºC (0 to 280 ºF)
- Algorithm: selectable as mentioned below
NaCl according to IEC 60746-3
tables.
Two T.C. setting possible between
0.00 to 3.50 %/°C
Matrix: user selectable/
configurable. 8 selectable for
concentrated solutions, 1 free
programmable.
K) Sensor diagnostics:
Abnormal temperature (open, short), abnormal
conductivity values (E5/E6 free programmable),
e.g. dry cell, wiring problems.
L) Calibration:
Manual, calibration Input pre-measureds data
(cell constant).
M) Logbook:
Software record of important events and diag-
nostic data.
N) Display:
Custom liquid crystal display.
- Main display: 3
½
digits, 12.5 mm high, zero
change included.
- Message display: 6 alphanumeric
characters, 7 mm high.
- Special fields: Flags for status indication :
FAIL and HOLD.
- Measuring units: μS/cm or mS/cm
- Key prompts: YES, NO, >, ^, ENT, Menu pointer
- Keys: 6 keys operated through
flexible window with tactile
feedback. One hidden key
behind the front cover.
O) Power supply:
Power supply : Normal 24 V DC loop powered
system, see Figure 2-1, 2-2.
ISC202G: 17 - 40 V DC
ISC202S: 17 - 31.5 V DC
- Input Isolation: Maximum 1000 VDC
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P) Housing :
- Material : Cast aluminium case with
chemically resistant coat-
ing, cover with flexible
polycarbonate window.
- Color : Case : Off-white (Equivalent to
Munsell 2.5Y8.4/1.2)
Cover : Deepsea Moss
green(Equivalent to Mun-
sell 0.6GY3.1/ 2.0)
- Cable gland : 2-Pg13.5
Q) Mounting :
Pipe, Wall or Panel.
R) Shipping details :
Package size : W x H x D, 290 x 300 x 290 mm
(11.5 x 11.8 x 11.5 inch).
S) Environment and operational conditions:
- Ambient temp.: -10 to 55 ºC (+10 to +130 ºF)
LCD operational
temperature is specified -
10 to 70 ºC (14 to 160 ºF)
Excursions to -30 to +70 ºC
will not damage the instrument.
- Storage temp.: -30 to +70 ºC (-20 to +160 ºF).
- Relative humidity: 10 to 90% RH at 40 ºC
ambient temperature, non
condensing
- Data protection: EEPROM for configuration
and logbook. Battery
supported clock.
- Watchdog timer : Checks microprocessor.
- Automatic safeguard: Return to measurement
after 10 minutes when
no keystroke.
Operation protection: 3 digital pass codes (pro-
grammable).
Power down: No effect, reset to meas-
urement.
T) HART® specifications :
Minimum cable diameter: 0.51 mm, 24 AWG.
Maximum cable length: 1500 m
Refer to standard HART® specifications for more
details.
See www.hartcomm.org
U) EMC Conformity standard ,
EN 61326-1 Class A, Table 2
(For use in industrial locations)
EN 61326-2-3
EN 61326-2-5 (pending)
CAUTION
This instrument is a Class A product, and it is
designed for use in the industrial environment.
Please use this instrument in the industrial
environment only.
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