Honeywell ST 3000 - Manual (Page 120)

6 of 10 34-ST-99-36 (Addendum to 34-ST-33-39) 10/04
Specific Parameters
for Non-Sparking
Zone 2 Installation
(Honeywell certified)
Supply Voltage:
Supply Current:
Ambient Temperate Limits:
Temperature Classification:
11-42 Vdc
23 mA
- 50 o C to 93 o C
T6 at Ta ≤ 78 o C
T5 at Ta ≤ 93 o C
Special Conditions
for Safe Use,
Non-Sparking
Zone 2 Installation
(Honeywell certified)
• The installation of this equipment in Zone 2 hazardous areas must
comply with VDE specification 0165, IEC 60079-14, EN 50021 and/or
valid national standards for installation and operation.
• Before commissioning of this equipment, it must be verified that the
power supply voltage cannot exceed the 42 Vdc maximum for 4-20 mA
analog and DE equipment.
• The electronic assemblies in these units are non-repairable items and if
faulty must be replaced. The electrical power supply must be switched
off before any replacement and during any time that the wiring
terminations are being connected or disconnected.