Gefran W6 DataSheet
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DIGITAL MELT PRESSURE GAUGE
(OIL-FILLED)
W6 SERIES 4–20 mA Retransmission
The W6 Series has an improved digital readout utilizing an extra-large five-digit display.
The W6 Series melt pressure gauge provides reliable, maintenance-free, localized pressure indication. The small capillary tube filled with a special medium isolates the gauge housing from potential thermal damage.
MAIN FEATURES
• Better than ±0.50% accuracy
• Economically priced
• 2 times overload capacity (ranges < 700 bar [10000 psi])
• 1/2-20 UNF thread standard, M18x1.5 also available
• One alarm standard
• 4-20 mA retransmission standard
• 17-7 PH corrugated diaphragm with TiN (Titanium
Nitride) coating standard
• Oil-fill is FDA approved — meets requirements
CFR172.3620 and CFR172.878
W60 The rigid stem configuration makes installation fast and easy.
W61 The flexible configuration is designed for applications requiring further thermal isolation or where installation would be otherwise difficult or impractical.
W62 The pressure/temperature configuration requires only one mounting hole for the measurement of both process values.
TECHNICAL SPECIFICATIONS
Nominal accuracy including
Linearity, Repeatability, Hysteresis
Measurement Range
M < ±0.50% FSO
Maximum Overpressure
Measurement Principle
Supply Voltage
Retransmission of Pressure Value
Maximum Housing Temperature
Thermal Drift in Zero Shift
Compensated RangeSensitivity Shift
Maximum Diaphragm Temperature
Zero Drift due to
Change in Process Temperature
Material In Contact with Process Medium
Standard
Thermocouple (model W62)
Alarm
0–35 to 0–1000 bar
0–500 to 0–15000 psi
2 x FSO
1.5 x FSO
(700 bar [10000 psi] and above)
Strain gage Wheatstone bridge
115 VAC or 230 VAC
(factory set)
4–20 mA (650
Ω max. load)
55°C (130°F)
4.0%/100°C (2.0%/100°F)
2.0%/100°C (1.0%/100°F)
315°C / 600°F
0.04 bar/°C
(30 psi/100°F)
Corrugated 17-7PH SS
(Titanium Nitride coated)
Type “J” (isolated junction)
High Only For C Relay
5A @ 115-230 VDC
FSO = Full Scale Output (output signal at nominal pressure)
ACCESSORIES
Accessories
Mounting bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SF18-659
Dummy plug for 1/2-20UNF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SC12
Dummy plug for M18x1.5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SC18
Drill kit for 1/2-20UNF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .KF12
Drill kit for M18x1.5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .KF18
Cleaning kit for 1/2-20UNF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CT12
Cleaning kit for M18x1.5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CT18
Thermocouple for W62 model
Type “J” (153 mm [6”] stem) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TTER718
MECHANICAL DIMENSIONS
Alarm Reset Button
Alarm Reset Button
ø4.7 [ø0.18”]
Panel mounting
ø39.4 [ø1.55”]
ø4.7 [ø0.18”]
Panel mounting
ø39.4 [ø1.55”]
ø17.5 [ø0.69”]
D5
D4
D1
D3
D2
D5
D4
D1
D3
D2
ø7.5 [ø0.30”] 475 [18”]
Flexible armor
D1
D2
D3
D4
D5
A
B
C
Ch
[Hex]
1/2-20 UNF
ø7.8 -0.05
[ø0.307” -0.002
]
ø10.49
±0.025
[ø0.413” ±0.001
]
ø10.67
[ø0.42”]
ø12.7
[ø0.5”]
5.56 -0.26
[0.219” -0.01
]
11.4
[0.45”]
15.75
[0.62”]
16
[5/8”]
D1
D2
D3
D4
D5
A
B
C
Ch
[Hex]
M18x1.5
ø10 -0.05
[ø0.394” -0.002
]
ø16
-0.08
[ø0.630” -0.015
]
ø16 -0.4
[ø0.630” -0.015
]
ø18
[ø0.71”]
6 -0.26
[0.236” -0.010
]
14.8
-0.4
[0.580” -0.016
]
19
[0.75”]
19
[3/4”]
Type J Thermocouple with connector
ø7.5 [ø0.30”] 108 [4.5”]
Flexible armor
ø31.8 [ø1.25”]
D5
D4
D1
D3
D2
Alarm Reset Button
ø4.7 [ø0.18”]
Panel mounting
ø39.4 [ø1.55”]
ø17.5 [ø0.69”]
ø7.5 [ø0.30”] 475 [18”]
Flexible armor
NOTE : dimensions refer to rigid stem length option “4” (153 mm – 6”)
WARNING : For installation use a maximum tightening torque of 56 Nm(500 in-lb)
ELECTRICAL CONNECTIONS
Wiring key:
3
2
1
5
4
7
6
10
9
8
4-20mA Auxiliary output (-)
4-20mA Auxiliary output (+)
Not used
Alarm common
Alarm normally Open
Alarm normally Closed
Not used
Earth Ground (G)
AC Low (N)
AC High (L)
Alarm Set Button
Zero Adjustment Trimpot
Alarm Reset Button
Alarm Led Indicator
Alarm Adjustment Trimpot
ORDER CODE
W 6 M 000
OUTPUT SIGNAL
Digital Gauge 6
VERSION
Rigid Stem 0
Rigid Stem + Flex 1
With Thermocouple 2
CONNECTOR
None 0
000 = standard version
Special or customized versions available on request
FLEXIBLE LENGTH *
(mm, inches)
Standard (W60)
0 none
Standard (W61, W62)
D 457 mm, 18”
F 760 mm, 30”
Available on request
A 76 mm, 3”
B
C
E
152 mm, 6”
300 mm, 12”
610 mm, 24”
ACCURACY CLASS
0.50% FSO M
RANGE bar
35
50
B35U
B05D psi
500
750
P05C
P75D
70 B07D 1000 P01M
100 B01C 1500 P15C
200 B02C 3000 P03M
350 B35D 5000 P05M
500 B05C 7500 P75C
700 B07C 10000 P10M
1000 B01M 15000 P15M
RIGID STEM LENGTH *
(mm, inches)
Standard (W60, W61, W62)
4 153 mm, 6”
5 318 mm, 12.5”
Available on request
1 38 mm, 1.5”
2
3
50 mm, 2”
76 mm, 3”
6
7
8
350 mm, 14”
400 mm, 16”
456 mm, 18”
* The W6 comes standard with a 10-pin connector for power supply, alarm and retransmission signal.
THREAD
Standard
1 1/2-20 UNF
4 M18x1.5
Available on request
2
3
M10x1.0
M14x1.5
* Note: Maximum overall length
(sum of flex and stem) is
912 mm (36”)
Examples
W60-0-M-B07C-1-4-0-000
Oil-filled digital melt pressure gauge, rigid stem, 1/2-20 UNF thread, 700 bar full scale output, 0.50% accuracy class, 153 mm (6”) rigid stem
W62-0-M-P03M-1-4-D-000
Oil-filled digital melt pressure gauge with type “J” thermocouple, 1/2-20 UNF thread, 1/2-20 UNF thread,
3000 psi full scale output, 0.50% accuracy class, 153 mm (6”) rigid stem, 457 mm (18”) flex
GEFRAN reserves the right to make any kind of design or functional modification at any moment without prior notice.
GEFRAN spa via Sebina, 74
25050 PROVAGLIO D’ISEO (BS) - ITALIA tel. 0309888.1 - fax. 0309839063
Internet: http://www.gefran.com
DTS_W60_0208_ENG
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