JF-1A CONDUCTIVITY SENSOR
A440-010
December, 2005
5
1.0 GENERAL & LABELING
JF-1A Applications
The JF-1A Conductivity Sensor is a 2-Wire 4-20 mA Electrical Conductivity
Measurement Sensor.
Liquid media
The sensor is used for measuring the electrical conductivity of liquid media:
In hazardous locations, Zone I of Explosion Group II C corresponding to EN
guidelines
In hazardous locations Class I, Div. 1, Group B, C and D in accordance with FM
and CSA guidelines
ATTENTION!
The sensor is not designed to meter gaseous media or solids.
Manufacturer
D-2 Incorporated
21A Commerce Park Road
Pocasset, MA 02559, USA
Type
II 2G
Code
EEx d [ia] IIC T4
Testing Station
KEMA QUALITY, B.V., Utrechtseweg 310, 6812 AR Arnhem
Certificate #
KEMA05ATEX1252
Ambient Temp Range
-20 to 50 Celcius
Process Max Temperature
40 Celcius
Ambient Max Pressure
16 Bar (235 PSIG)
Maximum Voltage (Loop)
38 VDC
Maximum Current (Loop)
22 mA
Maximum (RS-232 Input)
(RXD)
M/- 25 VDC +/- 5 mA
Maximum (RS-232 Output)
(TXD) Maximum +/- 5VDC +/- 30 mA (Short Circuited)
Test Voltage
Um = 250 VAC
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