Siemens EchoMax ST-H Guide Rapide page 5

Wiring setups for hazardous area installations
Always check the device nameplate and process device tag to verify the approval rating.
1. Intrinsically Safe wiring
Device nameplate (ATEX/INMETRO/C-TICK/CSA)
The ATEX certificate can be downloaded from the product
page of our website at: https://www.automation.siemens.com/w1/automation-technology-
st-h-transducer-18736.htm. Go to Support > Approvals / Certificates.
CSA Intrinsically Safe connection drawing number 1-9470004Z-DX-A can be downloaded
from the product page of our website at: https://www.automation.siemens.com/w1/
automation-technology-st-h-transducer-18736.htm. Go to Support > Installation Drawings >
Level Measurement > Continuous - Ultrasonic.
Device nameplate (FM)
Instructions specific to hazardous area installations (Reference European
• Refer to
ATEX Directive 94/9/EC, Annex II, 1/0/6)
A5E32105880
ST-H ULTRASONIC TRANSDUCER
Serial No. GYZ / S1034567
Amb. Temp.: - 20°C to 60°C
V in: 1.77 V r.m.s.; 250 V p; in : 44.2 mA r.m.s.
Siemens Milltronics Process Instruments, Peterborough
Assembled in Canada with domestic and imported parts
ST-H ULTRASONIC TRANSDUCER
Serial No. GYZ / S1034567
Amb. Temp.: – 40°C to 73°C
Max. Input Power: 11.5W Max. Input Voltage: 380V rms
Siemens Milltronics Process Instruments, Peterborough
Assembled in Canada with domestic and imported parts
ST-H Transducer – QUICK START MANUAL
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on page 4.
Page EN-3