<2. Notes on Handling>
2-4
IM 01C50B01-01E
a) CSA Intrinsically Safe Type/Non-incendive
Type
Caution for CSA Intrinsically safe type. (Following
contents refers “DOC No. ICS008-A13 P.1-1 and
P.1- 2”)
Note 1. Model YTA110/CU1, YTA310/CU1 and
YTA320/CU1 temperature transmitters are
applicable for use in hazardous locations:
Certificate 172608-0001053837
[For CSA C22.2]
• Applicable Standard: C22.2 No.0,
C22.2 No.0.4, C22.2 No.25, C22.2 No.94,
C22.2 No.142, C22.2 No.157, C22.2 No.213
• Intrinsically Safe for Class I, II, III, Division 1,
Groups A, B, C, D, E, F & G.
• Non-incendive for Class I, II, Division 2, Groups
A, B, C, D, F & G, Class III, Division 1.
• Encl. “Type 4X”
• Temperature Class: T4
• Ambient temperature: –40 to 60°C
Note 2. Entity Parameters (Electrical/Nonincendive
field wiring parameters)
• [Supply Circuit]
Vmax = 30 V, Imax = 165 mA, Pmax = 0.9 W,
Ci = 18 nF, Li = 730 μH
• [Associated apparatus]
Voc ≤ 30 V, Isc ≤ 165 mA, Pmax ≤ 0.9 W
• [Sensor Circuit]
Voc = 9 V, Isc = 40 mA, Po = 90 mW,
Ca = 1 μF, La = 10 mH
Note 3. Installation
• All wiring shall comply with Canadian Electrical
Code Part I and Local Electrical Codes.
• For the sensor circuitry, the above parameters
for sensor circuit must be taken into account.
• Dust-tight conduit seal must be used when
installed in class II and III environments.
• In any used safety barrier, output current must
be limited by a resistor 'R' such that Isc=Voc/R.
• The safety barrier must be CSA certified, and
the input voltage of the barrier must be less
than 250Vrms/Vdc.
• For non-incendive type, general purpose
equipment must be CSA certified and the
equipment which have non-incendive field
wiring parameters.
• The instrument modification or parts replacement
by other than authorized representative of
Yokogawa Electric Corporation is prohibited
and will void Canadian Standards Intrinsically
safe and nonincendive Certification.
F0203.ai
Safety Barrier
Supply
Hazardous Location
Nonhazardous Location
General
Purpose
Equipment
+
–
+
–
+
–
Supply
+
–
+
–
[Intrinsically Safe]
Hazardous Location
Nonhazardous Location
Not Use
Safety Barrier
+
–
[Non-incendive]
General
Purpose
Equipment
Sensor
1
2
3
4
5
Sensor
1
2
3
4
5
YTA Series
Temperature
Transmitter
YTA Series
Temperature
Transmitter
b) CSA Explosionproof Type
Caution for CSA Explosionproof type
Note 1. Model YTA110/CU1, YTA310/CU1 and
YTA320/CU1 temperature transmitters are
applicable for use in hazardous locations:
Certificate 1089576
[For CSA C22.2]
• Applicable Standard: C22.2 No.0,
C22.2 No.0.4, C22.2 No.25, C22.2 No.30,
C22.2 No.94, C22.2 No.142, C22.2 No.157,
C22.2 No.213, C22.2 No.1010.1
• Explosionproof for Class I, Division 1, Groups
B, C and D.
• Dust-ignitionproof for Class II, Groups E, F and
G, Class III.
• Encl “Type 4X”
• Temperature Class: T6
• Ambient Temperature: –40 to 60°C
• Supply Voltage: 42 V dc max.
• Output Signal: 4 to 20 mA
Note 2. Wiring
• All wiring shall comply with Canadian Electrical
Code Part I and Local Electrical Codes.
• In hazardous location, wiring shall be in conduit
as shown in the figure.
WARNING: A SEAL SHALL BE INSTALLED
WITHIN 50 cm OF THE
ENCLOSURE. UN SCELLEMENT
DOIT ÊTRE INSTALLÉ À MOINS
DE 50 cm DU BOÎTIER.
