GF Signet 2537, Instruction Manual

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2 Signet 2537 Flowmeter
40
80
120
160
200
3
6
8
11
14
0 40 80 120 160 200
-18 4 27 49 71 93
°F
°C
psi
bar
240
115
PVDF
Polypropylene
Fluid Conditions
Pressure/Temperature Ratings:
Polypropylene Body:
• 12.5 bar (180 psi) max. @ 20 °C (68 °F)
• 1.7 bar (25 psi) max. @ 85 °C (185 °F)
PVDF Body:
• 14 bar (200 psi) max @ 20 °C (68 °F)
• 1.7 bar (25 psi) max @ 85 °C (185 °F)
Intended Use: This product is intended for use in industrial water treatment
and wastewater treatment applications where the chemical content and the # uid
temperatures are consistent with the speci ! cations listed herein.
This device is not approved for use or installation in fl ammable liquids.
Chemical Compatibility
Georg Fischer Signet products are manufactured in a variety of wetted materials to suit various liquids and chemicals.
All plastic materials including typical piping types (PVC, PVDF, PP and PE) are more or less permeable to contained media, such as
water or volatile substances, including some acids. This effect is not related to porosity, but purely a matter of gas diffusion through the
plastic.
If the plastic material is compatible with the medium according to the application guidelines, the permeation will not damage the plastic
itself. However, if the plastic encloses other sensitive components, as is the case with GF Signet plastic paddlewheel sensors, these
may be affected or damaged by the media diffusing through the plastic body and rotor.
PVDF paddlewheel sensors may experience failure when used in hot nitric acid applications. PVDF is known to allow for substantial
permeation of nitric acid constituents without being damaged itself. No clear guideline can be given here, since the damaging effect to
the sensor is highly dependent on temperature, pressure and concentration.
Utilizing sensors in applications with aggressive substances is possible. On special request GF Signet can provide sensors with a
different internal resin encapsulation (potting) that will delay the damaging effect of acids to the sensors.
The retaining nuts of paddlewheel sensors are not designed for prolonged contact with aggressive substances. Strong acids,
caustic substances and solvents or their vapor may lead to failure of the retaining nut, ejection of the sensor and loss of the
process fl uid with possibly serious consequences, such as damage to equipment and serious personal injury. Retaining nuts
that may have been in contact with such substances, e.g. due to leakage or spilling, must be replaced.
For all Special Product inquiries or to place an order, please email
signet-specialproduct@georgfi scher.com.
Flow Switch Output
Relay Modes: Low, High
Time Delay: 0.0 to 6400.0 seconds
Hysteresis: Adjustable in Engineering Units
Relay Specifi cations
Dry Contact SPDT: 5 A @ 30 VDC, 5 A @ 250 VAC
Solid-State Relay: 100 mA @ 40 VDC, 70 mA @ 33 VAC
Digital (S
3
L) output
Type: Serial ASCII, TTL level 9600 bps
Maximum Cable Length: See Digital (S
3
L) speci ! cations
Current output (Passive 4 to 20 mA)
Loop Accuracy: ±32 $ A (@ 25 °C @ 24 VDC)
Loop Resolution: 5 $ A
Temp. Drift: ±1 $ A per °C max.
Power Supply Rejection: ±1 uA per V
Maximum Cable Length: 305 m (1,000 ft)
Max Loop Resistance: 600 % @ 24 VDC, 1 K % @ 32 VDC
Standards & Approvals
• UL
• CE
• Manufactured under ISO 9001 for Quality, ISO 14001
for Environmental Management and OHSAS 18001 for
occupational health and safety.
China RoHS (Go to www.gfsignet.com for details)
WARNING
Declaration of Conformity according to FCC Part 15
This device complies with Part 15 of the FCC rules.
Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and,
(2) This device must accept any interference received, including
interference that may cause undesired operation.