+ 1
– 2
10 –
7 +
12 –
11 +
0/4...20 mA
III III
3
+ 4
– 5
6
9 –
8 +
HART®
GN
I
?
I
?
?
?
?
?
1
2
HART®
210 Ω
210 Ω
1
2
0/4...20 mA
(source)
RL ≤ 500 Ω
0/4...20 mA
(source)
RL ≤ 500 Ω
HHTHHT
PowerPwr
+ 1
2
– 3
+ 4
5
– 6
+ 2
– 3
+ 5
– 6
HART®
HART®
HART®
HART®
Fig. 5: Block diagram of the IM33-22-Hi/24VDC
5.3 Commissioning
When the device is in operation, ensure that the power supply is within the specified voltage range. Commission-
ing is described in the operating instructions for the particular device.
DANGER
Malfunction caused by operating errors
Danger to life if safety function fails!
A function test must be completed prior to initial operation, after repair and replacement, as well as at the
stipulated interval T[Proof].
5.3.1 Selecting transmitters
The transmitters must be suitable for use in safety circuits.
Ensure that the devices and the housing materials are suitable for the application. For this refer also to the appli-
cable data sheets of the Turck devices at www.turck.com.
6 Operation, maintenance and repair
The information is valid for the operating stress conditions in an industrial environment as per IEC 606541-1 Class
C (sheltered location) with an ambient temperature of 40 °C over a long period of time.
6.1 Troubleshooting
The rectification of faults is described in the operating instructions for the particular device.
NOTE
The user must notify Turck immediately of any faults on the device which occur when it is used in safety instru-
mented applications.
6.2 Maintenance
Ensure that the plug connections and cables are always in good condition.
The devices are maintenance-free, clean dry if required.
DANGER
Malfunction caused by conductive media or static charge
Danger to life if safety function fails!
When cleaning do not use any liquid media or statically charging cleaning agent.
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