Manual

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VIBRATIONS TRANSMITTER mod. Ex TR-26

Function

The integrated transmitter mod. Ex TR-26 measures the Absolute Vibrations of any rotating

machine support and is able to interface itself directly (two-wires technique, current loop 4 to 20

mA) with an acquisition system (PLC or DCS).

The transmitter reduces at maximum installation and wiring incidence, that normally limits the

possibilities to apply the traditional systems for vibration monitoring.

The transmitter is certified for applications in areas classified as:

- Ex II 2 G Ex ia IIC T6 or T5 or T4

General description

The transmitter, assembled through direct fastening on the machinery, generates a current signal (4

to 20 mA) that is proportional respectively to vibration speed or acceleration.

The transmitter is composed of a stainless steel body having a threaded machine connection; the

connection with the users is performed by means of a MIL-C-5015 connector (2 poles), included.

NOTE: The transmitter is available in different configurations and becomes operative only after its

correct electrical connection, as per drawing no. 85465-P; it doesn’t need setup or maintenance.

Technical characteristics

Summary of content (7 pages)

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---------------------------------------------------------------------------------------------------------------------- VIBRATIONS TRANSMITTER mod. Ex TR-26 Function The integrated transmitter mod. Ex TR-26 measures the Absolute Vibrations of any rotating machine support and is able to interface itself directly (two-wires technique, current loop 4 to 20 mA) with an acquisition system (PLC or DCS).
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Composition  Integrated transmitter body, in AISI 316L stainless steel material. Power supply  24 Vdc (10 to 35 Vdc) current loop 4 to 20 mA (two-wires)  Maximum load as per figure 2 External connections  MIL-C-5015, 2 poles connector (conductors max section 2,5 mm²) Environmental use field  - 50°C to + 120°C  IP 65 EN 60529/10.
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Figure 2 – Maximum allowable load on current loop 900 800 Maximum load [Ohm] 700 600 500 400 300 200 100 0 0 5 10 15 20 Power supply [V] 3 25 30 35
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ASSEMBLY N.B.: the operations must be performed, if possible, when the machine is OFF and by using the maximum delicateness in order to avoid any transmitter damages. 1) Predispose a special threaded hole on the support to be measured. The surface on which the transmitter lies must be flat and smooth. It is better to interpose a silicon layer between the transducer and the support surface. N.B. : Avoid giving violent shocks to the transmitter body, the closure torque must be 5 to 10 N-m.
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Notes for identification: The transmitter is constructed to be correctly used, according to the conditions set out by the following table: Certifications to ATEX 94/9/CE 0722 0722 0722 II 2 G Ex ia IIC T4 II 2 G Ex ia IIC T5 II 2 G Ex ia IIC T6 CESI 09 ATEX 045 Legend of nameplate safety data Marking of conformity with the applicable European directives 0722 Number of the Notified Body carrying out the surveillance (CESI) Marking of conformity with Directive 94/9/CE and relative technical standards II
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Ordering data A B C TR – 26 /  /  /  where, A : measuring field 0 1 2 3 4 5 6 S B 0 to 10 mm/s RMS 0 to 20 mm/s RMS 0 to 50 mm/s RMS 0 to 100 mm/s RMS 0 to 1 g RMS 0 to 5 g RMS 0 to 10 g RMS Special, to be defined : threaded connection 0 1 2 M8x1,25 ¼’’ – 18NPT ¼’’ – 28UNF C : ATEX certification 0 2 None II 2 G Ex ia IIC T6 or T5 or T4 (Zone 1) Ordering example TR – 26 / 1 / 0 / 2 TR – 26 measuring field 0 to 20 mm/s RMS, connection M8x1,25, certification for Zone 1 6
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Ex TR-26 05 gb 7 ASTM09120