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低压表P421系列

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产品描述

Service intended

P421 series are designed to measure low, vacuum or compound pressure. These models have a stainless steel measuring element which consists of two formed diaphragms and diaphragms are welded together.

Nominal diameter	100 and 150 mm
Accuracy	±1.0 % of full scale ±1.5 % of full scale
Scale range (kPa, mbar)	-50 ~ 0 to -1 ~ 0 kPa -15 ~ 15 to -0.5 ~ 0.5 kPa -0.2 ~ 0 to -0.6 ~ 0 kPa 0 ~1 to 0 ~ 35 kPa
Working pressure	Steady : 75 % of full scale Over range protection : 130 % of full scale
Working temperature	Ambient : -20 ~ 65 °C Fluid : Max. 100 °C
Temperature effect	Accuracy at temperature above and below the reference temperature (20 ℃) will be effected by approximately ±0.6 % per 10 ℃ of full scale

Standard features

Pressure connection	Stainless steel (316L SS)
Element	Stainless steel (316L SS) Pressure chamber : Up to 35 kPa
Case	Stainless steel (304SS)
Cover	Stainless steel (304SS)
Window	Safety glass
Movement	Brass
Dial	White aluminium with black graduations
Pointer	Black painted aluminium alloy
Process connection	¼", ⅜", ½" PT, NPT and PF
Certificates	ATEX Ex II GD c IIc TX
Option	• Internal zero adjustment, only available with diameter 100 mm • Laminate safety glass