Signet 3-2537-1C-P0 Manual

Signet 2537 Paddlewheel Flowmeter
3-2537.090
3-2537.090 Rev C
SAFETY INSTRUCTIONS
1. Depressurize and vent system prior to installation or removal.
2. Confi rm chemical compatibility before use.
3. Do not exceed maximum temperature/pressure specifi cations.
4. Wear safety goggles or faceshield during installation/service.
5. Do not alter product construction
6. If this equipment is used in a manner not specifi ed by the manufacturer, the protection provided
by the equipment may be impaired.
7. This device is not approved for use or installation in hazardous locations.
Description
The 2537 Paddlewheel Flowmeter Series offer low fl ow, low power and high resolution with various output options such as a fl ow
switch, pulse divider, Digital (S
• The Digital model provides a digital (S
• The 4-20 mA model provides a blind current loop output.
• The Flow Switch Model uses a single relay (mechanical or solid state) for Hi or Lo alarm operation.
• The Pulse model uses a single relay (mechanical or solid state) and has two selectable operating modes:
• The Divider mode scales the paddlewheel frequency down to accommodate low frequency input devices.
• In Total mode, the Pulse Model becomes a traditional pump pulser, able to output one pulse per a set volume of fl uid.
A small LCD enables the 2537 to be programmed without any external equipment. During normal operation the display is not visible.
Specifi cations
General
Wetted Materials
Model Suffi x Sensor Body
-P0, -P1 glass-fi lled PP
-T0 PVDF, Natural
Case: PBT, yellow
Inside cover: Valox, black
Wiring ports ½ in. NPT threads; liquid-tight
connector accepts cables 7-10 mm od
(0.275-0.394 in.)
Power requirements
Pulse, Flow Switch
With dry-contact relay: 24 VDC nominal
(21.6 VDC min. to 26.4 VDC max.)
30 mA max current
With solid-state relay: 5 to 24 VDC nominal
(5.0 VDC min to 26.4 VDC max.)
30 mA max current
Digital (S 3 L): 5 VDC nominal
(5.0 VDC min to 6.5 VDC max.)
30 mA max current (1.5 mA nominal)
4-20 mA: 12 VDC to 32 VDC nominal
(10.8 VDC min to 35.2 VDC max.)
30 mA max current
Reverse Polarity and short circuit protected: Up to 40V, 1 hour
Over-voltage protection: +60 VDC, -50 VDC
Paddlewheel sensor performance specifi cations
Pipe Size Range: DN15 to DN 200 (½ in. to 8 in.)
Min. Reynolds Number: 4500
Paddlewheel Frequency: 49 Hz per m/s nominal
(15 Hz per ft/s nominal)
Operating Range: 0.1 m/s to 6 m/s (0.3 ft/s to 20 ft/s)
Linearity: ±1% of max. range @ 25°C (77°F)
Repeatability ±0.5% of max. range @ 25°C (77°F)
Electronics performance specifi cations
Input Frequency Range: 1 Hz to 1000 Hz
System Response: 100 ms update rate nominal
06/09 English
3 L), or 4-20 mA. This unit can be confi gured on-site directly through the built-in user interface.
3 L) output for use with the Signet 8900 Multi-Parameter Controller.
Rotor Pin
PVDF, Black Titanium
PVDF, Natural PVDF, Natural
400 mV max ripple voltage
Environmental Requirements
Enclosure rating:
O-ring
Storage Temperature:
FPM
Ambient Temperature:
FPM Relative Humidity:
Altitude:
Pollution Degree:
Output specifi cations
Signal Averaging:
Sensitivity Response:
Pulse divider/Total pulse output
Pulse Divider Setting:
Flow switch output
Relay Modes:
Time Delay:
Hysteresis:
Relay Specifi cations
Mechanical SPDT:
Solid-State Relay:
3
Digital (S L) output
Type:
Maximum cable length:
Current output (Passive 4 to 20 mA)
Loop Accuracy:
Loop resolution:
Temp. drift:
Power supply rejection:
Maximum cable:
Max Loop Resistance:
Standards & Approvals
• UL
• CE
• ISO 9001 and ISO 14001
China RoHS (Go to www.gfsignet.com for details)
NEMA 4X/IP65
-10°C to 75°C
0°C to 65°C
0 to 90% RH, non-condensing
2000 m (6562 ft.)
2
Programmable 0 to 100 seconds
Programmable 0 to 9 scale
1.0000 to 99999
Maximum pulse rate: 300 Hz
Maximum pulse width: 50 ms
Low, High
0.0 to 6400.0 seconds
Adjustable in Engineering Units
5A @ 30 VDC, 5A @ 250VAC
100mA @ 40VDC, 70 mA @ 33 VAC
Serial ASCII, TTL level 9600 bps
3
See S L specifi cations
±32 μA (@ 25°C @ 24 VDC)
5 μA
±1 μA per °C max.
±1 uA per V
300 m (1000 ft.)
600Ω @ 24 VDC, 1KΩ @ 32 VDC
English