SPK81 Flow Switch
Features
· Optional power supply 24VDC or 220VAC
·OLED LCD screen, switchable display between the progress bar and
digital display
· All stainless steel housing, IP67 protection
· Temperature compensation
· 2-way PNP ¦ 2-way NPN ¦ 1 relay output are optional
· No moving parts, maintenance-free
· Switch output, control point setting continuously on panel
· Compact size, support inverted display
· Mounting joint can be equipped with different interfaces for a
variety of pipe diameters requirement
Introduction
SPK81 flow switch is an intelligent thermal diffusion
principle-based flow monitoring sensor. It adopts ARM processing
core and combines with high quality sensors and dedicated circuit.
With temperature-compensation and calibration, it can ensure
measurement accuracy in the case of water temperature change. It is
available for real-time monitoring of pipe water flow. It can be
used for cooling or lubrication system flow monitoring to realize
pre-warning and protection for critical equipment when there is
flow fault. It uses fully enclosed design, stainless steel
construction to adapt to a variety of application environment. It
is with overvoltage, overcurrent and reverse polarity protection
function. With self-luminous OLED screen, it allows switchable
display between the progress bar and digital display numbers. SPK81
supports quick action point set, also it has display inversion
function that enables installation in any direction, and no need
for frequent adjustment and maintenance. It can be applied for
operation protection of large equipment in fileds such as power
generation, metallurgy, steel, paper, boilers etc.
Specification
| Measure Range | 1cm/s～150cm/s (water) |
| Optimal Range | 3cm/s～100cm/s (water) |
| Power Supply | (220±44)V AC； (24±4.8)V DC |
| Working Current | ≤ 60mA |
| Switch accuracy | ±10cm/s |
| Hysteresis | ±2cm/s～±8cm/s |
| Initial time | 2s～15s,8s(typ.) |
| Switch Current | ≤ 400mA |
| Switch-off Time | 1s～15s,2s(typ.) |
| Output signal | 1 relay￤2-way PNP￤2-way NPN (optional) |
| Output Function | NO,NC (optional) Relay |
| Characters | Switch voltage: ≤ 250V AC / 30V DC
Switch Current: ≤3A; Transistors
Switch Voltage Drop:≤ 1.5V
Switch Current: ≤ 400mA |
| Switch-on time | 1s～13s,2s(typ.) |
| Display | OLED indicator,resolution 128×32 |
| Electric Protection | Reverse, short-circuit, over-voltage |
| Housing | S.S. |
| Button | PP |
| Probe | S.S. |
| Installation | Joint mounting + adaptor |
| Endurance Pressure | 10MPa |
| Set | Button |
| Electric Connection | M12×1 5-pin plug |
| Gross weight | 265g |
| Water Temp. | -20℃～80℃ |
| Storage Temp. | -30℃～85℃ |
| Working Temp. | -20℃～70℃ |
| Protection | IP67 |
| Temperature Compensation | 5℃～50℃(water) |
| Electromagnetic Compatibility | GB/T 17626.2/3-2006, GB/T 17626.4-2008
Shock: ≤ 20g (GB/T 2423.10-2008)
Impact:≤ 50g/11ms (GB/T 2423.5-1995) |
| Note: The above specification test medium is water;
5cm/s~100cm/s；20℃(Factory defaults) |
Order Guide
Optional accessories: SP901 2m 5-pin M12×1 Female Elbow RVVP
Cable(Standard)
SP601 M20×1.5 male adaptor
SP602 G1/2 male adaptor
Notes
1. Pressure port can be customized for users. Please note in the
purchase order.
2. If users have special requirement, please contact us freely.
Why choose us?
- The company has a group of proffesional technicians
- We enjoy a good team of production quality control
- Both the performance index and the quality of the products reach
the top of the domestic market
