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Ashcroft 2074 - User Manual

Ashcroft 2074
32 pages
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I&M008-10109 Rev. F 10/13
Digital Industrial Gauge
Operating Instructions
I&M008-10109-DIG Rev F 07-12_layout 10/14/13 9:45 AM Page 1
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Ashcroft 2074 Specifications

General IconGeneral
BrandAshcroft
Model2074
CategoryMeasuring Instruments
LanguageEnglish

Summary

QUICK REFERENCE

Pressure Unit Selection

Lists available units for pressure measurement.

Update Rate Settings

Configures the frequency of pressure readings on the display.

Backlite Operation

Details options for manual and automatic backlite control.

Automatic Shut-off Configuration

Defines time intervals for automatic gauge power-off.

Dampening Functionality

Averages readings to stabilize fluctuating process pressure.

Calibration Procedures

Covers zero, span, and mid-scale calibration steps.

Menu Option Disabling

Allows disabling specific menu items or keypad functions.

KEYPAD FUNCTIONS

On;Off Key Functionality

Turns the gauge on and off; initiates startup display.

Zero;Clear Key Operation

Resets zero shift and clears min/max values.

Min;Max Key Review

Reviews and displays minimum and maximum pressure values.

Enter Key Selection

Finalizes selections and confirms feature choices in menus.

Menu Options Overview

Lists available settings for gauge customization.

Unit of Measure Configuration

Selects the desired unit for pressure measurement.

Menu Key Navigation

Accesses and cycles through main menu options for customization.

Backlite Key Control

Manually toggles the backlite on or off.

MENU FUNCTIONS

Setting a User Password

Establishes a unique password for accessing menu options.

Entering User Password

Prompts for password entry to access protected features.

Recalibration Procedure

Guides through recalibrating zero, mid, and full-scale.

Factory Recalibration Settings

Restores original factory calibration settings for the gauge.

Zero Key Adjustment Options

Sets the tolerance for rezeroing using the Zero/Clear key.

Disabling Menu Items

Allows enabling or disabling specific menu functions.

Bar Graph Configuration

Adjusts the bar graph to represent specific pressure ranges.

Automatic Shut-off Timer

Configures the time before the gauge automatically powers off.

Display Update Rate Settings

Sets the speed at which pressure is updated on the screen.

Dampening Settings

Averages readings to stabilize minor process fluctuations.

Switch Setpoint Configuration

Sets user-defined switch points for output signals.

Switch Setpoint and Retrip Values

Sets switch points for rising and falling pressure.

DIGITAL INDUSTRIAL GAUGE SPECIFICATIONS

Gauge Type and Case Details

Specifies gauge models, case sizes, and materials.

Display and Bar Graph Features

Details display resolution, character height, and bar graph presence.

Keypad and Menu Function Summaries

Overview of keypad actions and menu options.

Optional Features Overview

Describes 4-20mA output, line power, and switching options.

DIGITAL INDUSTRIAL GAUGE RANGES

DISPLAY MESSAGES AND ACTIONS

WIRING DIAGRAM (Loop Powered 4-20 mA)

Installation Procedure (Type 2174)

Step-by-step guide for installing loop powered gauges.

WIRING DIAGRAM (Line Powered)

Installation Procedure (Type 2274)

Step-by-step guide for installing line powered gauges.

WIRING DIAGRAM (Line Powered with 1 SPDT Switch)

Installation Procedure (Type 2274 XU1)

Guide for installing line powered gauges with one switch.

Switch Wiring Connections

Explains how to connect the single SPDT switch.

WIRING DIAGRAM (Line Powered with 2 SPDT Switches)

Installation Procedure (Type 2274 XU2)

Guide for installing line powered gauges with two switches.

Wiring Switch 1

Details connections for the first SPDT switch.

Wiring Switch 2

Details connections for the second SPDT switch.

WIRING DIAGRAM (Line Powered;Loop Powered 4-20 mA)

Installation Procedure (Type 2274 XAO)

Guide for installing combined line/loop powered 4-20mA gauges.

WIRING DIAGRAM (Line Powered;Loop Powered 4-20 mA with 1 SPDT Switch)

Installation Procedure (Type 2274 XAOU1)

Guide for installing combined wiring with one SPDT switch.

Switch Wiring Configuration

Explains switch connections for the combined unit.

WIRING DIAGRAM (Line Powered;Loop Powered 4-20 mA with 2 SPDT Switches)

Installation Procedure (Type 2274 XAOU2)

Guide for installing combined wiring with two SPDT switches.

Wiring Switch 1

Details connections for the first switch on combined unit.

Wiring Switch 2

Details connections for the second switch on combined unit.

GAUGE INSTALLATION

Battery Installation and Replacement

ESD PRECAUTIONS

PANEL MOUNTING DIMENSIONS

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