Introduction; Application And Key Features; Factory Mutual Approval - Wahl DST500-FM User Manual

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Introduction

The following symbols are used in this manual.
Please adhere to all !
! Warning – identifies conditions and actions that may be dangerous to the
user.
Caution! – identifies conditions and actions that may cause damage to the
product or equipment.
Note: - provides additional explanatory information.
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Application and Key Features

The Wahl DST500-FM is designed for temperature monitoring applications in
Classified Hazardous Locations, where a high degree of accuracy and ease of
use are desired. To achieve this objective the DST500-FM incorporates the
following features:
High reliability, 4-wire, 100 ohm, .00385Ω/Ω/°C, thin-film platinum RTD
•
sensor per DIN EN 60751, Class A.
Hazardous Location approval by FM Approvals as defined in Section 3 of this
•
manual.
High accuracy 24-bit Delta-Sigma Analog/Digital Converter.
•
Probe Error checking: Checks for open wire, open sensor, shorted sensor,
•
incorrect wiring.
Programmable RØ: Allows programming of the sensing probes specific RØ
•
value into the meter for accurate temperature calibration.
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Factory Mutual Approval

3.1 The DST500-FM when used with the Wahl p/n DSA3060 battery(Tadiran
model TL-2200), carries hazardous location approval and is suitable for use
in the following locations.
• Intrinsically Safe; Class I, II and III; Division 1; Groups ABCDEFG;
Temperature Class T4A Ta = 70° C; Indoor and Outdoor (Type 4X)
Hazardous Locations.
• Class I, II, III; Division 2; Groups ABCDEFG; Temperature Class T4A Ta =
70° C; Indoor and Outdoor (Type 4X) Hazardous Locations
• All Non-hazardous Locations
DST500-FM USER MANUAL
Warnings and Cautions! in this manual.
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