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PT-1 Digital Pressure Indicator

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Data Sheet

FEATURES

Single or dual pressure measurement display

Digital interface capability via RS232 interface

Large LCD display

Pressure modules permanently installed (PPT-1

and PPT-2)

Pressure measurement accuracies of ±0.10% to

±0.025% of span, range dependent

ORDERING CODE

PT

2

L

N

P

R

Part Number

PT - Ashcroft® base unit; no sensors

PT

Power Supply

1 - 110 Vac/60 Hz

2 - 220 Vac/50 Hz

2

3 - 100 Vac/60 Hz

4 - No power supply provided

Optional Features

L - Back Lit display

L

N - Nicad batteries

N

A - Alkaline batteries

H - Handle

P - Panel mounting hardware

P

R - Series 7 retrofit panel (option P will be required

to mount this)

R

E - Non-standard engineering units

SPECIFICATIONS

Reference Temperature: 70 ºF

Accuracy:

From ±0.1% to ±0.025% of span, depending on range.

Process Connection: 1⁄8 NPT female

Calibration:

Traceable calibration certificate included for each

pressure module

Recalibration:

Complete recalibration can be accomplished over

instrument RS232 interface. Zero and span can be

accomplished via front panel keypad.

Resolution:

±0.002% of span (max.)

Repeatability:

±0.01% of span (all psi ranges)

±0.01% of span (ranges of 1 through 200 in. H

2O)

±0.02% of span (ranges below 1 in. H

2O)

Operating Temp.

Range:

32 °F to 120 °F (0 °C to 49 °C)

Temp. Comp. Range: 20 °F to 120 °F (0 °C to 49 °C)

Temperature Effect: ±0.004% of span per °F over compensated range

from reference temperature of 70 °F (±3°F)

Optional Temp.

Compensation:

Eliminates temperature error from 20 ° to 120 °F

(-7 °C to 49 °C). Available only on PPM2 sensors.

Storage Temp.:

-4 °F to 158 °F (-20 °C to 70 °C)

PT-1

Digital Pressure Indicator

Media:

PPM1: Sensor Type: Clean, dry, non-conductive,

non-corrosive gas

PPM2: Sensor Type: Any medium compatible with

316 Stainless steel

Overpressure:

PPM1 - Low pressure sensors

Under/Overpressure capability -15 to 50 psi

Maximum static (line) pressure 100 psi

PPM2 - Medium/High pressure sensors

Overpressure capability

200% for ranges up to 1000 psi

150% for ranges over 1000 psi

Display:

Liquid crystal

Case Material:

High Impact ABS, black

Power

Requirements:

Standard: 110 Vac, 60 Hz adapter provided

Optional: 220 Vac, 50 Hz or 100 Vac adapter, Nicad

or alkaline battery pack

Push Button Keypad

Functions Include:

Zero adjust, 12 Standard engineering unit select,

Tare function, Min/Max recall, Print, Damping, Port

select, Display hold

Dual sensor modes:

Add or subtract pressure applied to one module

from the second module (differential pressure)

Field Recalibratable: Yes

Warm Up:

5 min. to rated accuracy

30 Min. to complete stability

Display Size:

2 Line, 0.38˝ height per line

16 alpha or numeric characters per line (Max)

Display Update:

100 ms