SPECIFICATIONS

Accuracy:

±0.1% of gauge span

Gauges:

Ashcroft Model A4A, 6˝, ASME B40.1,

Grade 4A, temperature compensated

Bourdon tube material – 403 Stainless Steel

or Beryllium Copper (depending on range)

Gauge ranges – (see table)

Operating Pressure:

0 to 10,000 psi max.

Reservoir Volume

Approximately 1.5 pints (0.7 liter)

Pump Body Material

Aluminum alloy

Operating Fluid:

1327CMS – SAE 20 automotive or machine oil

1327CMH – Phosphate or glycol base

hydraulic fluids

1327CMO – Distilled water (with sodium

molybdate and phosphoric acid additives

recommended as corrosion inhibitors)

O-Ring Seals:

Standard (1327CMS and 1327CMO) – Buna-N

Optional (1327CMH) – Ethylene Propylene

Accessories:

Metal carrying and storage box

Lower connection offset pipe assembly

Back connection pipe

Gauge pipe extension assembly

¼ and ½ NPT Female adapters

Wrench (1˝x11⁄8˝)

Wrench (7⁄8˝x1˝)

Wrench (5⁄8˝)

Pointer puller set

Installation and Operation Manual

Spare O-ring kit

KEY BENEFITS

•Easy to use – no weight stacking

•Can be used to calibrate oxygen service gauges

•Higher accuracy gauges support 4:1 calibration

ratio

FEATURES

„

1 to 3, 6˝ certified test gauges provided

„

Accuracy: ±0.1% of span, ASME B40.100,

grade 4A gauges

„

Maximum operating pressure: 10,000 psi

„

Compatible with a variety of operating fluids,

including water

TYPICAL USES

Calibration laboratories

Portable for field calibrations

SPECIFICATIONS (Continued)

Certification:

Standard – Traceable calibration certificate

provided for each gauge.

Carrying Case

Dimensions:

10 ½˝ x 8 ½˝ x 24 ½˝ (inches)

(11˝ x 10˝ x 24½˝ including latches and handle)

of 3

1

Data Sheet

All specifications are subject to change without notice. All sales subject to standard

terms and conditions. Ashcroft® and Trust the Shield® are trademarks of Ashcroft Inc.

©2022 Ashcroft Inc. 1327CM_PrComp_ds_RevA_09-29-22

ashcroft.com

| 1.800.328.8258 | Contact Us

1327CM Pressure Gauge Comparator

1327CM Pressure Gauge Comparator

(Pressure gauge pictured on left not included)