HLR 7970 tech help

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Pressure Sensor : Engineering Details

Control Working Pressure:
30 PSI (2.109 KG/CM2) - 125 PSI (8.62 Bar, 8.78 KG/CM2) Pneumaic or Hydraulic Instrument Supply
Working Pressure of Piston Assembly:

10,000 PSI Max. (689 BAR, 703 Kg/Cm2).

Connection Sizes:Control Ports - 1/4"-18 NPT "F".
Monitored Press. Inlet - 1/2"-14
MNPT & 1/8" - 27 FNPT

Four Individual Piston
Arrangements Enclosed

Complete “Sets” of 1-1/8", 1/2",
1/4" & 3/16" (Piston Assemblies
within).

CV Factor:.35
Dead Band:
3-5% of Pressure
Setting


Repeatability:

within 1% of Pressure Setting

Dimensions:

Body O.D. = 1.750 in. (4.45cm)
Length = 8.375 in. (21.27cm)

Panel Hole Cutout Size Required:
1 - 5/8” Diameter (4.13cm)

Click on image below to enlarge.

INSTRUMENT CONNECTIONS & CONTROL FUNCTIONS ASSUMED

“HIGH” Application (PSH)
(Pressure Increasing)
CONNECTIONFUNCTION
H Supply Inlet
L Exhaust
O Outlet (Output)

“LOW” Application (PSL)

(Pressure Decreasing)
CONNECTION FUNCTION
L
Supply Inlet
H
Exhaust
O Outlet (Output)