Yokogawa ADMAG AXF - Manual (Page 120)

IM 01E20D01-01E 8-4
8. EXPLOSION PROTECTED TYPE INSTRUMENT
8.2 FM
(1) Technical Data
*AXF002C – AXF400C
Applicable Standard:
FM3600, FM3610, FM3615,
FM3810, ANSI/NEMA 250
(Integral Flowmeter)
Explosion proof for Class I, Division 1, Groups A,
B, C & D.
Dust-ignition proof for Class II/III, Division1,
Groups E, F & G.
Intrinsically safe (electrodes) for Class I, Division 1,
Groups A, B, C & D.
“SEAL ALL CONDUITS WITHIN 18 INCHES”
“WHEN INSTALLED IN DIV. 2, SEALS NOT
REQUIRED”
Electrode Circuit Um: 250 Vac/dc
Maximum power supply voltage: 250 Vac/130 Vdc
Excitation Circuit: 140V max
Enclosure: NEMA 4X
Temperature Code: T6
Refer to following table;
T27-1.EPS
+70 °C (+158°F)
+85 °C (+185°F)
Temperature
Code
+120 °C (+248°F)
Maximum Process
Temperature
–40 °C (–40°F)
–40 °C (–40°F)
–40 °C (–40°F)
–40 °C (–40°F) T6
Minimum Process
Temperature
T4
T5
T3 +130 °C (+266°F)
Ambient Temp.: –40
°C to +60°C (–40°F to +140°F)
(Remote Flowtube)
Explosion proof for Class I, Division 1, Groups A,
B, C & D.
Dust-ignition proof for Class II/III, Division1,
Groups E, F & G.
Intrinsically safe (electrodes) for Class I, Division 1,
Groups A, B, C & D.
“SEAL ALL CONDUITS WITHIN 18 INCHES”
“WHEN INSTALLED IN DIV. 2, SEALS NOT
REQUIRED”
Electrode Circuit Um: 250 Vac/dc
Excitation Circuit: 170V max
Enclosure: NEMA 4X
Temperature Code: T6
Refer to following table;
T28-1_1.EPS
Temperature
Code
Maximum Process
Temperature
–40 °C (–40°F)
–40 °C (–40°F)
–40 °C (–40°F)
–40 °C (–40°F) T6
Minimum Process
Temperature
T4
T5
T3
+70 °C (+158°F)
+85 °C (+185°F)
+120 °C (+248°F)
+150 °C (+302°F)
Ambient Temp.: –40
°C to +60°C (–40°F to +140°F)
(2) Installation
WARNING
• All wiring shall comply with National Electrical
Code ANSI/NFPA 70 and Local Electrical
Code.
• In hazardous locations, wiring to be in conduit
as shown in Figure 8.2.1.
• When installed in Division 2, “SEALS NOT
REQUIRED”
(3) Operation
WARNING
• “OPEN CIRCUIT BEFORE REMOVING COV-
ERS.”
• “SEALS ALL CONDUITS WITHIN 18 INCHES”
in hazardous locations.
• When installed in Division 2, “SEALS NOT
REQUIRED”
• Take care not to generate mechanical spark
when access to the instrument and peripheral
devices in hazardous locations.
(4) Maintenance and Repair
WARNING
The instrument modification or parts replacement
by other than authorized representative of
Yokogawa Electric Corporation is prohibited and
will void the approval of Factory Mutual Re-
search Corporation.