-1-
DPX300 R20151015
Digital Pressure Switch
CAUTIONS
1. This product may cause an electric shock in handling. Please do not attempt to open it with power turned on.
2. This product should be installed in a place fixed secured by a rack or panel.
3.This product can be used under the following environmental condition.
① Indoor ②Pollution Degree 2 ③At an altitude of 2000m or below
4. Power input must be within the designated ranges.
5. To turn on or turn off power supply for this product, please the circuit breaker or switch of a standard product of IEC
60947-1 or IEC 60947-3 product and install it within a close distance allowing convenient operation by user.
6. Please be understood that if this product is dismantled or modified discretionary, after sales service will not
be able to be provided.
7. An output wire to be used for this product should be inflammable grade FV1 (V-1 grade or above), the thickness
of the wire should be AWG No. 20 or above(0.50mm
2
).
8. In order to prevent it from an inductive noise, please maintain the high-voltage wire and power wire separated.
9. Please avoid installing the product in a place where a strong magnetism, noise, severe vibration and impact exist.
10. When extending the sensor wire, use a shield wire and do not extend it unnecessary long.
11. The sensor wire and signal wire should be away from the power and load wires using conduits separately installed.
12. Please avoid using the product near a device generating strong high frequency noise (high-frequency welding machine,
high-frequency sewing machine, high-frequency radiotelegraph, high capacity SCR controller)
13. Product’s damages other than those decribed in the guarantee conditions provided by the manufacturer shall not be
respoinsible by us.
14. If this unit is used to control machineries (Medical equipment, vehicle, train, airplane, combustion apparatus,
entertainment, processing and transportation equipment, elevator and various safety device etc.) enabling to effect
on human or property, it is required to install fail-safe device.
※ The Aforementioned precautions must be observed, and if you fail to do so, it may cause a product’s breakdown
.
※ The specifications, dimensions, and etc. are subject to change for enhancement without a prior notice.
DPX300
User Manual
DOTECH INC.
6F, JOONGANG-ILBO B/D, 30, Dongsan-ro, Danwon-gu,
Ansan-si, Gyeonggi-do, KOREA
TEL: +82-31-495-3767 FAX: +82-31-495-3917
www.dotech21.com
1. OVERVIEW
※ FEATURES
- High pressure protection, Low pressure protection, Oil pressure protection,
an integrated high pressure fan control
- Automatic / Manual reset, Selection of various refrigerants
- Precise pressure control, Sensor offset, Sensor error detection
: SPECIFICATIONS(STANDARD MODEL)
Description
Power 100 – 240 Vac, 50/60 Hz
Power Consumption MAX 10 VA
Output 4P Relay Outputs / 250Vac, 30Vdc, 5 A
Pressure
Sensors
Measurement
Range
-0.10 ~ 5.00 MPa
Accuracy ±1.0 %FS
Overpressure 150 %FS
Stability ±0.5 %FS/year
Shock 20 g sinusoidal, 11 msec
Vibration x-y-z directions of 5 -2000Hz / 10g
Working Temp. -40 ~ 120 °C
Connection 7/16UNF” / MALE
Pressure Type Gauge
Dimensions 159(W)mm X 128(H)mm X 58(D)mm
Operation Temperature -10~50 °C / Humidity 90%RH or less
Storage Temperature -20~60 °C / Humidity 90%RH or less
: SELECTION GUIDE
Model Description
DPX300-HLO-00-MPA Digital Pressure Switch Standard(Pressure Unit: MPa )
DPX300-HLO-R4-MPA Digital Pressure Switch for Communication(RS485 Modbus )
DPX300-HLO-00-KGF Digital Pressure Switch Standard(Pressure Unit: kgf/cm2)
DPX300-HLO-R4-KGF Digital Pressure Switch for Communication(RS485 Modbus )
DPX300-HLO-00-BAR Digital Pressure Switch Standard(Pressure Unit: bar )
DPX300-HLO-R4-BAR Digital Pressure Switch for Communication(RS485 Modbus )
DPX300-HLO-00-PSI Digital Pressure Switch Standard(Pressure Unit: psi )
DPX300-HLO-R4-PSI Digital Pressure Switch for Communication(RS485 Modbus )
※ Communication is not supported in standard models.
※ Specify the pressure unit when ordering.
: Supplied Contents
Bracket 1ea User Manual
※ This item is provided for securing the bracket tightening all bolts please.
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