WT sensor PCM710 User manual

1 www.wtsensor.com
PCM710 Intelligent Pressure Switch
Features
■High precision
■Adjustable response time
■NPN, PNP compatible, free
switching
■Button operation, shortcut button
for one-click zero calibration, fast
unit switching
■OLED shows the current
pressure
■LED for node action, easy to
observe
Applications and industries
■Hydropower
■Chemical industry
■City water supply
■Scientific research
■Accurate measurement and
control of pressure of fluids
Notes:
1 Do not touch the diaphragm with hard
objects, which may cause damage to
the diaphragm.
2 Please read the Instruction Manual of
the product carefully before installation
and check the relevant information of
the product.
3 Strictly follow the wiring method for
wiring, otherwise it may cause product
damage or other potential faults.
4 Misuse of the product may cause
danger or personal injury.
Product overview
PCM710 Intelligent Pressure Switch is an intelligent
pressure measurement & control product which integrates
pressure measurement, display, output and control. This product
is in full-electronic structure. The piezoresistive silicon pressure
sensor is adopted in the front end. The output signal is
processed by the amplifier with high precision and low
temperature drift, and then sent into high precision A/D
converter. Through arithmetic processing by microprocessor, the
output signal is displayed on site with 2-way switch quantity and
4～20mA analog quantity, accomplishing the measurement and
control for the control system pressure.
This intelligent digital pressure controller has advantages of
flexible use, simple operation, easy commissioning and high
safety and reliability. It is widely used in hydropower, tap water,
petroleum, chemical, mechanical, hydraulic and other industries
for the measurement, display and control of pressure of fluid
media.
Notes:
1 Do not misuse documentation.
2 The information presented in this product sheet is for reference
only. Do not use this document as a product installation guide.
3 Complete installation, operation, and maintenance information is
provided in the instructions of the product.
4 Misuse of the product may cause danger or personal injury.

2 www.wtsensor.com
Performance parameters
Pressure range
0～10kPa…40MPa
Overload capability
150～300%FS
Accuracy
±0.5%FS
Power supply
12～30V, 24V recommended
Display mode
OLED display of 4 digits
Output mode
2-way switch quantity, NPN and PNP compatible + 4～20mA
Load capacity
≤24V 1.2A
Power consumption
≤15mA
Operating temp.
-25℃～80℃
Storage temp.
-40℃～100℃
Response time
≤20ms
Insulation
100MΩ/250VDC
Structural performance parameters
Housing material
304
Medium compatibility
Liquid contacting diaphragm 316L, pressure port 304
Outline dimension
In mm
Dimension

3 www.wtsensor.com
Wring method
M12×1
Wiring definition
Wiring diagram
1: VCC (Supply +)
2: SP2 (Switch 2)
3: GND (Supply -)
4: SP1 (Switch 1)
5: 4～20mA
PNP output wiring diagram
NPN output wiring diagram
Signal interference suppression
DAP
damping mechanism:
As the switch action
determination basis, the
current pressure
measurement value
sampling frequency is
programmable. When
DAP starts, the pressure
sampling data will be the
average pressure value
over a period of time.
The low sampling
frequency can effectively
restrain the high
frequency pressure signal
noise.

4 www.wtsensor.com
Switch action time-delay
mechanism:
When the pressure switch
captures a switch action
task, the user can select
to adopt the
instantaneous switch
action or the subsequent
action after the delayed
t/s. During the delayed
time, the pressure switch
doesn’t respond to any
switch operation, so as to
avoid repeated switch
actions.

5 www.wtsensor.com
Fast operating mode
When the system is under
the normally displayed
pressure, the functions of
fast zero point correction
and fast unit switchover
can be realized by
pressing [▲]/[▼].
Switch action characteristics
Supporting two kinds of
switching modes:
1. Hysteresis mode
2. Window mode
Normally open/Normally
closed options
Operating instructions for the keys
·When the pressure is displayed normally
③[●]Short-press to call out the menu
interface
④[▼]Long-press the fast zero point
correction
⑤[▲] Short-press the fast unit switchover
·When entering the menu interface
[●]OK/Exit
Long-press[▲][▼]to edit the data

6 www.wtsensor.com
Pressure range selection
Pressure range
code
Pressure
reference
Pressure range
Overpressure %
FS
Burst
pressure %FS
10k
G
0~10kPa
300
600
35k
G
0~35kPa
300
600
70k
G
0~70kPa
300
600
100k
G, A
0~100kPa
200
500
250k
G, A
0~250kPa
200
500
400k
G, A
0~400kPa
200
500
600k
G, A
0~600kPa
200
500
1.0M
G, A
0~1.0MPa
200
500
2.5M
G, S
0~2.5MPa
200
500
6M
S
0~6MPa
200
400
10M
S
0~10MPa
200
400
16M
S
0~16MPa
200
400
25M
S
0~25MPa
150
300
40M
S
0~40MPa
150
300
How to order
PCM710 - 1M - G - P1 -C1
Example: PCM710-1MGP1C1
Refer to PCM710 Pressure Switch, with pressure range 1MPa, gauge pressure, accuracy
±0.5%FS, and pressure connection M20×1.5.
Accessory
Product model
Pressure range
selection
P1 = ±0.5%FS
C1 = M20×1.5
C2 = G1/2
C3 = G1/4
C5 = NPT1/4
G = Gauge pressure
A = Absolute pressure
S = Sealed gauge
pressure

7 www.wtsensor.com
Name
Specifications
M12×1 female with wire
M12×1 female 5-pin with wire 2m
Ordering tips
1. Please ensure the compatibility between the measured medium and the contacting part of the product
when placing an order.
2. If there are special requirements for the product appearance or performance parameter, our company
can provide customization.
Wotian reserves the right to make any change in this publication without notice. The information
provided is believed to be accurate and reliable as of this product sheet.
Contact us
Nanjing Wotian Technology Co.,Ltd.
website: www.wtsensor.com
Add: 5 Wenying Road, Binjiang Development Zone, Nanjing, 211161, China
Sales Manager: Wuzhou Lian
Email: [e-mail]
Version No.: V1.0