Ashcroft ATE-2 Specifications

ATE-2 Handheld Calibrator

STANDARD BASE UNIT
FEATURES

• Data logging

• IP65 / NEMA 4X enclosure

• Onboard 24Vdc loop power supply
(non-intrinsically safe version)

• Optional intrinsically safe approvals
(FM, ATEX, CSA)

• SD memory card slot

• USB interface

• 13 Engineering units of measure

• Large back lit display

• 180 Degree flip display

• Programmable damping

• Switch test function

• Percent error function

• Min/max recall

• Push-button zero adjust

• Tare function

• Hot swap capability

The Ashcroft ATE-2 calibrator is
designed to measure pressure, tempera­ture, voltage or current. It includes the
capability to display up to two modules
and one electrical measurement simulta­neously, along with logging data to inter­nal memory or communicating directly to
a PC via USB connection.
The ATE-2 has a wide selection of pres­sure modules, covering ranges from 0.25
inches H20 through 10,000 psi. The base
unit design allows the user to operate
one or two modules. Modules are inter­changeable, and can be changed without
the need of tools, minimizing downtime.

The ATE-2 provides a large LCD
display for ease of reading measurements
and configuring the calibrator.
The unique product platform also
includes data logging; with internal
storage capacity for up to 16,000 records
on up to 64 data log files that can be
transferred to an SD card.
A wide range of approvals including UL,
FM, ATEX and CSA make the ATE-2
a popular choice worldwide.

large, bright

LOOK FOR THESE MARKS ON

OUR PRODUCTS

display for ease
of use

All specifications are subject to change without notice.
All sales subject to standard terms and conditions.
© Ashcroft Inc. 2018 ate-2_calibrator_ds1.0, Rev. A, 09/18

Ashcroft Inc., 250 East Main Street, Stratford, CT 06614 USA
Tel: [phone] • Fax: [phone]
email: [e-mail] • www.ashcroft .com

ATE-2 Hand Held Calibrator

ATE-2 STANDARD FUNCTIONS

• Data logging allows the user to save
pressure, temperature and or electronic
values displayed on the LCD to internal
memory. Internal memory can hold up
to 64 data log files and a total of up
to 16,000 individual records. Manual
logging is initiated with a single key
press. Automatic data logging can be
programmed to collect data at timed
intervals between 0.1 second and 24
hours.

• SD Memory Card Slot gives the ATE-2
additional data storage capability limited
only by the capacity of the SD card
installed. Data logs stored on the SD
card are saved in .csv format which
can be read by most spreadsheet
programs. Data can easily be trans­ferred from the ATE-2 to a PC.

• Loop Power Supply is a standard
feature on non-I.S. units, and allows the
user to conveniently power the device
under test with 24Vdc up to 35mA.

• Percent Error Function can be used
when calibrating pressure transducers.
Calculations are performed by the
ATE-2 eliminating potential for human
errors. This function enables the user
to program the full scale range and
electrical output of the transducer
under test and will display the actual
pressure and electrical output readings
as well as a percentage value compar­ing the actual output to the theoretical
output.

• Switch Test Function allows the oper-
ator to calibrate and document the
pressure switch function. The on-board
display will show pressure switch trip
point, reset point and will calculate
switch deadband. All calculations are
performed by the ATE-2 eliminating
potential for human errors.

• Dual Mode Function allows the oper-
ator to add or subtract the measured
pressure values from two installed
Quick-Select™ pressure modules. This
allows for measurement of “high-line”
or elevated static differential pressures.
This feature also offers the ability to
add barometric pressure from an abso­lute pressure module to the measured
pressure from a gauge pressure mod­ule, giving the user the ability to mea­sure a variety of absolute pressures
without using designated modules.

BASE UNIT SPECIFICATIONS

Ashcroft Model:

ATE-2
Dimensions:

8.7 in. (L) x 5.1 in. (W) x 3.8 in. (H)
Unit Weight (no modules):

2.4 lbs
Case Material:
High-impact PC-ABS
Enclosure:
IP65 / NEMA 4X
Sensor Module Capacity:
Two bays for Ashcroft AM2 sensor modules
LCD Display:

2.5˝ (W) x 1.5˝ (H); displays three (3) simultaneous
measurements, bar graph, back light and
flip-screen capability
Electrical Connection:
4mm banana jacks – 1 set of test leads included
with each ATE-2
Loop Power Supply:

24Vdc-35mA maximum (non I.S. only)

Available Engineering Units:

psi, in.H2O, in.Hg, ftSW, bar, mbar, kPa,
MPa, mmHg, cmH2O, mmH2O, kg/cm2,
User Programmable

Operating Temperature Range:
–4 to 120°F (–20 to 49°C)
Storage Temperature:
–4 to 158°F (–20 to 70°C)
Update Rate:
100ms – 1 module installed
200ms – 2 modules installed
300ms – 2 modules installed and external input
Resolution:
±0.001% span; 99,999 counts
Warm-Up Time:
5 minutes for rated accuracy
Electrical Measurements:
0-20mA or 0-30Vdc

Input Volts Accuracy

0/10 Vdc ±0.025% fs
10/30 Vdc ±0.10% fs
0-20mA ±0.03% fs

2

ATE-2 Handheld Calibrator

Programable Filtering (Damping):

Levels 1 through 16
Temperature Effect Electrical Measurement:
±0.001% of span per F over compensated range
from reference temperature of 70°F (±3°F)

Serial Interface:

USB (Micro-B connector type)
Field Calibration: Base Unit and pressure
modules may be field-calibrated via keypad
commands

Data Logging:

• Internal storage for up to 64 data logs and up to
16,000 records; transferrable to SD card

• Manual / automatic data logging capability

•

Programmable data intervals (0.1 sec. to 24 hrs.)

Agency Approvals:
CE Mark, FCC (CFR47), UL 61010-1

OPTIONAL FEATURES
Hazardous Location Version
(Battery Powered Only):

FM Intrinsic Safety CL 1,
Div 1, Gr A, B, C, D

CSA Intrinsic Safety CL 1,
Div 1, Gr A, B, C, D

ATEX Ex ia ii c T4 Ga –20°C<Ta<+50°C

Note: Loop power supply is not included with
Intrinsically Safe Units

Power Requirements:

(4) AA Batteries or via USB power supply
USB universal AC adapter 100-240Vac, 50/60 Hz

Battery Life:

Up to 40 hours battery with 2 modules installed

Certification:

N.I.S.T. traceable certification document provided for
base unit and Quick-Select sensor modules.

HOW TO ORDER ATE-2 BASE UNIT

P/N Description Version

ATE2ST Ashcroft Base Unit (ST) Standard

ATE2IS Ashcroft Base Unit (IS) Intrinsically Safe

a large variety
of pressure and
temperature
modules are
available

3

ATE-2 Hand Held Calibrator

OPTIONAL PRESSURE
MODULE FEATURES

• AM2-1 Low Pressure Module

• AM2-2 Medium/High Pressure

Module

• Hot Swap

• Accuracies from 0.025% to 0.1%

• Low Pressure Ranges from ±0.25

InH2O to 200 InH2O

• Medium/High Pressure Ranges

from 5 psi up to 10,000 psi

• Gauge, Absolute, Differential,

Vacuum and Compound Ranges

Quick-Select™ Pressure Modules

Available in full-scale ranges from

0.25 inches H20 through 10,000 psi.
Gauge, vacuum, absolute, differential or
compound pressure ranges are available.

Select from multiple modules that can
be quickly interchanged (“hot-swapped”)
without the use of tools, and are auto­matically recognized once installed in the
base unit.

Ashcroft Low Pressure Module AM2-1

The AM2-1 Quick-Select low pressure
module is based on a proprietary, vari­able-capacitance sensor. This sensor is
available in ranges from 0.25 to 0/200
inches H20 with accuracies from ±0.1%
to ±0.06% of span, and are available for
gauge, differential and compound pres­sures. They are suitable for use with dry,
non-corrosive gases
The variable-capacitance sensing
element incorporates a micro-machined
silicon diaphragm. Silicon provides opti­mum repeatability with minimal hysteresis.
The sensor is extremely stable, due to the
sputtered metal capacitance plates being
molecularly bonded to the silicon. This
design eliminates adhesives from the sen­sor assembly.
The AM2-1 sensor is also extremely
rugged. It can withstand extreme over­pressure, shock and vibration without sig­nificant error or calibration offset.

Ashcroft Medium / High Pressure
Module AM2-2

The AM2-2 Quick-Select pressure
module incorporates a piezoresistive,
micro-machined silicon sensor. These
sensors are available in ranges from 5 psi
through 0-10,000 psi, and are also offered
in absolute, vacuum and compound
ranges with accuracies from 0.025% to

0.1% of span. 316 SS sensor isolation is
provided on all ranges except for 10,000
psi which is 17-4 PH stainless steel, and
is suitable for applications involving fluids
or corrosive gases.
Optional enhanced accuracy eliminates
temperature error over the entire compen­sated temperature range of high pressure
modules.

OPTIONAL PRESSURE SENSOR
MODULE SPECIFICATIONS

AM2-1 LOW PRESSURE MODULE
Pressure Types:

Gauge, differential and compound
Available Ranges:
Refer to Range Table
Available Accuracies:
±0.06 (0/1-0/200˝ in.H20),
±0.07 (0/0.25-0/0.5˝ in.H20), or 0.1% of Span
Compensated Temperature Range:
20 to 120°F (–7 to 49°C)

Temperature Effect:

±0.004% of Span per °F over compensated
range from reference temperature range of
70°F (±3 degrees)

Repeatability:

±0.01% of Span (range 0/1 in.H20 or higher)
±0.02% of Span (range below 1.0 in.H20)
Sensitivity:
±0.002% of Span (typical)

Media Compatibility:

Clean, dry, non-conductive, non-corrosive gas

Under / Overpressure Capability:

–15 to 50 psi
Maximum Static (line) Pressure:
100 psi
Process Connection:
Standard 1⁄8 NPT Female
Agency Approvals:
FCC (CFR47), UL-61010-1
Not RoHS compliant

4