Yokogawa SC25V - Manual (Page 6)

6
IM12B6J1-40E-E
2.6 Sensor Dimensions
Dimension according to DIN 19263:2007-05
Criteria : 120 mm version
L (below plug head) : 120 ± 2 mm
Ø shaft
: 11.9 ± 0.1 mm
Criteria : 225 mm version
L (below plug head) : 225 ± 2 mm
Ø shaft
: 11.9 ± 0.1 mm
Concentricity : < 0,25 mm (centerline plug
head - 25 mm from tip)
Perpendicularity : < 0,5 mm (plug head
- 25 mm from tip)
Cilindricity : < 0,5 mm (centerline
sensor)
Criteria : All types
All measuring elements within 25mm from tip.
Figure 1
2.7 Equipment and protective systems
intended for use in potentially explosive
atmospheres
ATEX II1G Ex ia IIC T3...T6 Ga.
EC-type Examination Certificate Number:
DEKRA 11ATEX0014 X
IECEx-type Examination Certificate Number:
IECEx DEK 11.0064x
Description
pH sensor series SC25V for connection to a
certified associated pH/ORP transmitter are
used for measurement of pH, redox(ORP) and
temperature.
Ambient temperature range:
-40°C to +40°C for temp. class T6,
-40°C to +55°C for temp. class T4 and T5,
-40°C to +105°C for temp. class T3,
Electrical data
Sensor input circuits (connector):
In type of protection intrinsic safety Ex ia IIC,
only for connection to a certified intrinsically safe
circuit, with the following maximum values:
Ui = 18V; Ii =170 mA; Pi = 0,4 W; Ci = 0 nF
(connector) or 3,6 nF (permanently connected
cable); Li = 0 mH;
Or for connection to the certified intrinsically
safe YOKOGAWA pH/ORP Transmitter Model
FLXA21 series or Model PH202S series.
Special conditions for safe use:
For ambient temperature see above.
Electrostatic charges on the enclosure and
cable shall be avoided.
pH sensor series SC25V is suitable for use with
the PH202S, FLXA21-EA conform to ATEX.
Note: When the sensor has been connected
to none intrinsically safe equipment or
equipment which exceeds the restrictions
regarding the sensor input circuit, the
sensor is not suitable for intrinsically safe
use anymore.
PG13.5
Wrench 19
Ø12
< Ø11.8
0344
YOKOGA
W
A
II 1 G E
X
ia IIC
T3/T4/T5/T6 Ga
DEKRA
1
1A
TEX0014X
0344
Made in the netherlands NL-3825 HD-2
120 / 225
25.0
S
X C
1
2
-
5
0
V
0
-A
16
173 / 278