TTF200
FIELD-MOUNT TEMPERATURE TRANSMITTER | OI/TTF200-EN REV. B
7
Type of protection flameproof (enclosure) Ex db IIC
Supply circuit
Maximum voltage
U
S
= 30 V
Maximum current
I
s
= 32 mA, limited by the upstream fuse
(rated fuse current 32 mA)
Measurement current
circuit
Maximum voltage
U
O
= 6.5 V
Maximum current
I
O
= 17.8 mA
Maximum power
P
O
= 29 mW
LCD indicator
Intrinsic safety type of protection Ex ia IIC
Supply circuit
Max. voltage
U
i
= 9 V
Short-circuit current
I
i
= 65.2 mA
Max. power
P
i
= 101 mW
Internal inductance
L
i
= 0 mH
Internal capacitance
C
i
= 0 nF
Installation instructions
ATEX / IECEx
The installation, commissioning, maintenance and repair of
devices in potentially explosive atmospheres must only be
carried out by appropriately trained personnel. Works may be
carried out only by persons, whose training has included
instructions on different types of protection and installation
techniques, concerned rules and regulations as well as general
principles of zoning. The person must possess the appropriate
competences for the type of work to be conducted.
When operating with combustible dusts, comply with
EN 60079-31.
The safety instructions for electrical apparatus in potentially
explosive areas must be in accordance with Directive
2014/34/EU (ATEX) and IEC 60079-14 (Installation of electrical
equipment in potentially explosive areas).
Comply with the applicable regulations for the protection of
employees to ensure safe operation.
Cable entries
Devices with type of protection ‘Ex d’ without supplied
cable glands
For devices with type of protection ‘Ex d – flameproof
(enclosure)’ supplied without cable glands, refer to the notices in
ATEX - Zone 1 (20)
on page 10 and
Flameproof (enclosure) -
Zone 1
on page 11.
For information on the cable gland used, refer to the relevant
data sheet and operating instructions.
Devices with type of protection ‘Ex d’ with cable glands
If devices in ‘Ex d – flameproof (enclosure)’ type of protection
with cable gland are ordered, an Ex d certified cable gland is
factory-installed.
Cable gland data
• Thread: 2 × M20 × 1.5 or 2 × ½ in NPT
• Temperature
range:
−
50 to 85 °C (
−
58 to 185 °F)
• Cable outside diameter: 3.2 to 8.7 mm (0.13 to 0.34 in)
• Material: nickel-plated brass
The cable entry is only suitable for fixed installations and non-
reinforced cables with round and smooth plastic sleeves and
suitable outside diameter. The cables must be attached
appropriately in order to prevent them being pulled out or
twisted.
The operating instruction and approvals supplied with the cable
glands, as well as any applicable requirements in accordance
with EN 60079-14 must be taken into account accordingly.
