Product ID: PM-731
Dual Input Differential Manometer PM-731
Most robust differential pressure meter.
4 switchable units: InWC, mmWC, mbar, psi.
Rubber-boot protection for tough applications.
Dual Display and Dual input.
Main Display: P1.
Second Display: P1-P2, P2.
DUAL INPUT DIFFERENTIAL MANOMETER
Accuracy: Stated accuracy at 23°C±5°C,
Operating environment: 0°C to 50°C, (32°F to 122°F)
Compatible Media: Dry, non-corrosive gases.
Battery Life: 200 hours with low battery indication on
Units of Measure: InWC, mmWC, mbar, psi.
Pressure Ports: tube connectors for 8mm I.D. flexible
Battery: 1.5V x 4pcs AAA size.
Dimensions: 171mm(H) x 83mm(W) x 40mm(D).
Weight: approx. 230g including batteries.
InWC: 0.00 to ± 60.00
mmWC: 0.0 to ± 1500.0
mbar: 0.00 to ± 150.00
psi: 0.0000 to ± 2.0000
Accuracy: ±1.5% FS
Can this meter be used for butane gas?
The sensor used in our differential manometer is for air pressure use.
It should not apply the gases that have corrosive property.
The butane gas is flammable and liquid type. Which I think that might influence the
As the accuracy of PM-731 is +/- 1.5% FS and full scale of mmWc is 1500mm =>
1.5% = +/-22.5mmWc or +/- 1.5% FS of reading ex. if reading is 5mmWc, accuracy is
5 x 1.5% = 0.075mm.
Refers to the full scale measurement range multiplied by the maximum error value
That is, error value of the range scale.
InWC: -60.00 ~ 60.00 error value is 60 X 1.5% = 0.9, so the error is 0.9 InWC range
full of reading,
such as mmWC -1500 ~ 1500 is 1500 X 1.5% = 22.5, error is +/- 22.5 full range of
When the customer's absolue measurement value is 100 mmWC, then the error
range is in the acceptance of 77.5 ~ 122.5
In other words, the more a small equivalent measured values, the error ratio is
Dual Input Differential Manometer
TECPEL CO., LTD.
http://www.tecpel.net ; http://www.tecpel.com
TECPEL CO., LTD.