DPTH High Accuracy Differential Pressure Transmitter-Operation Manual
Edition: A/2
1
DPTH High Accuracy Differential Pressure Transmitter
Applications & Features
Apply high accuracy MEMS sensor and digital technology,
can measure positive, negative or differential pressure, and
air velocity or volume
It can measure system pressure of fan, blower, filter,
furnace draft and orifice plate and can apply to various
clean room, biological safety cabinet, clean bench, ducts
collection, medical or pharmaceutical machine, etc.
Excellent temperature compensation and electromagnetic
interference (EMI) ability, good for applications in complex
EMI environments of industrial systems or equipments
Multiple ranges, engineering units and outputs
High accuracy up to 0.5% and range as low as 25Pa
Function keys: zero reset, units select, response time set,
square root output set (air velocity or volume), K factor
calibrate and area parameter’s input, etc.
Field upgradable LCD display module with unit indication
Square root output: when applying along with pitot tubes or
other air velocity or volume sensor, can supply linear output
for air velocity or volume
Specifications
Medium:
on-combustible, non-corrosive air, insensitive to
moisture, dust, condensation and oil
Working Temp.:
-20~70°C
Medium Temp.:
0~60°C
Temp. Compensation:
0~50°C
Storage Temp.
：
-20~70°C
Working Pressure:
overload 10xFS(<=1kPa)/8xFS(>1kPa)
burst 20xFS(<=1kPa)/10xFS(>1kPa)
Accuracy:
±0.5%FS(±1.0%FS@25Pa range)
Long term stability:
±0.5%FS /Year
Thermal effect:
<0.03%FS/°C (zero), <0.04%FS/°C (FS)
Response Time:
0.5~30s, can be set by keys
Process Connection:
5mm ID tubing
Display:
4 digits LCD, with unit indication, field upgradable
Output:
0~10V, 4~20mA (2 wires), RS485 selectable
Output Load:
≤500Ω (current), ≥2kΩ (voltage)
Power:
Voltage: 16~28VAC/ 16~35VDC
Current: 18.5~35VDC(RL=500Ω), 8.5~35VDC(RL=0Ω)
Unit select:
by keys
Zero set:
easy to reset by keys
Air velocity/volume:
square root output set (air velocity or
volume), K factor calibrate and area parameter’s input
Materials:
fire retardant ABS+PC(UL94V-0)
Protection:
IP65
Weight:
180g
Approval:
CE, meet EN61326-1 for industrial equipment
Models
Model
DPTH
High accuracy DP
transmitter
Range
X
Range selection
Output
1
0-10V
2
4-20mA(2 wires)
8
RS485/Modbus
Display
0 N/A
1 LCD
Measuring Ranges
Code
UNIT & Range & Display Resolution
Pa
Pa
kPa
in w.c.
mm w.c.
mbar
0
0-25
25.00
0.025
0.100
2.500
0.250
1
0-60
60.00
0.060
0.250
6.000
0.600
2
0-125
125.0
0.125
0.500
12.00
1.250
3
0-250
250.0
0.250
1.000
25.00
2.500
4
0-500
500.0
0.500
2.000
50.00
5.000
5
0-1000
1000
1.000
4.000
100.0
10.00
6
0-2500
2500
2.500
10.00
250.0
25.00
7
0-5000
5000
5.000
20.00
500.0
50.00
8
0-10000
10000
10.000
40.00
1000.0
100.00
1. Set the 5 engineering units by button keys and the related LCD indicator will be on.
2. For zero center models, add “Z” at the end of the model. For example, DPTH1**Z, means the range
is -30-0-30Pa. Only ranges 0~6 have this selection.
