Altek 2500T User Manual

The 2500T offers
simplistic set-up to
make your job
easier.

Features:

■ Two Built-In Pumps –

Vacuum and Pressure

■ High Accuracy – 0.035% FS

■ 1-51 mA Inputs

■ Switch Test Inputs

■ 100 PSID Internal Sensor

■ Read up to 10,000 PSI With

Optional External Sensor

■ Built-In 24 VDC Loop Power

■ Temperature Compensated

From -10˚ to 50˚C
(13˚ to 122˚F)

■ Selectable Engineering Units

■ Just 18 Pounds

■ Dual Digital Display –

PSI and mA

■ Gauge, Differential, or

Vacuum Modes

PneuCal III

The Altek PneuCal III is a highly accurate, digital calibrator for pneumatic field
instrumentation, including valve actuators, P/I transmitters, controllers, gauges,
switches and recorders. It is especially suitable for checking 3 to 15 PSI
systems. Its dual precision regulators enable output of set and variable
pressures to control devices, while the switching manifold allows fast selection
among the pressure ports. The unit simultaneously displays pressure and mA,
and has a built-in loop power supply. Accuracy is ± 0.035% of full scale for
all ranges. Optional external sensors measure other pressure ranges.

Each Unit Includes: Built-In Switch Testing, AC Adapter/Charger, Test Leads,
Hard Shell Carrying Case, Instructions, Built-in Pressure and Vacuum Pumps.

663 PNEUMATIC CALIBRATOR SPECIFICATIONS

Pressure Ranges/Resolution: -5.00 to 100.00 PSI, -34.47 to 680.00 kPa, VAC to

10,000 PSI with optional modules

Pressure Accuracy: ±0.035% FS PSI (over -10 to +50˚C range)

2

Pressure Engineering Units: PSI; Pa; kPa; MPa; BAR; mBAR; atm; kgf/cm

in Hg @ 0˚C and 15˚C, in H

H20 @ 4˚C and 23˚C; cm H2O @ 4˚C and 23˚C
Electrical Engineering Units: mA; % of 4-20 mA; % of 10-50 mA
Electrical Input Connections: Double insulated, full-size banana jacks
mA Input Range: 1-51 mA
mA Resolution: 0.001mA
mA Accuracy: ±0.01% FS
Temperature Effect: 0.005%/˚C (mA Input only)
Loop Power: 24 VDC, ±20%, 25 mA max. (When loop power is enabled,

the discharge rate on the batteries exceeds the charging

capacity of the 16 VDC adapter.)
Switch Test: Dry contacts only. (Display will freeze when switch test inputs

change state. Press RESET key to resume normal operation.)
Operating Temperature: -10˚C to 50˚C (13˚F to 122˚F)
Storage Temperature: -30˚C to 85˚C (-22˚F to 185˚F)
Zero Adjustment: Via front panel push-button (pressure only)
Display: 2-line,16 character alpha-numeric display
Power: Internal Ni-Cd batteries or 16 VDC adapter. (To charge battery

the unit has to be powered off.)
Battery Life (typical): 23 hrs. (1 hr. with 24 VDC transmitter power at 20 mA)
Dimensions (h x w x d): 7"x18.5"x15.5"

O: 4˚C,15˚C, 20˚C, 23˚C; mm

2

; mm Hg;

Unless otherwise indicated, all specifications are referred to an ambient temperature of
23˚C ±1˚C (72˚F ±2˚F).

PHONE: [phone] • FAX: [phone]

E-MAIL: [e-mail] • WEB: www.altekcalibrators.com

MODULES

PRESSURE MODULE SPECIFICATIONS

Gauge Pressure Modules

Model Range Accuracy Media

90-5G 5 PSIG ±0.025% Rdg +0.01% FS 316SS Compatible
90-10G 10 PSIG ±0.025% Rdg +0.01% FS 316SS Compatible
90-30G 30 PSIG ±0.025% Rdg +0.01% FS 316SS Compatible
90-100G 100 PSIG ±0.025% Rdg +0.01% FS 316SS Compatible
90-300G 300 PSIG ±0.025% Rdg +0.01% FS 316SS Compatible
90-500G 500 PSIG ±0.025% Rdg +0.01% FS 316SS Compatible
90-1,000G 1,000 PSIG ±0.025% Rdg +0.01% FS 316SS Compatible
90-2,500G 2,500 PSIG ±0.025% Rdg +0.01% FS 316SS Compatible
90-5KG 5,000 PSIG ±0.1% FS 316SS Compatible
90-10KG 10,000 PSIG ±0.1% FS 316SS Compatible

“Dual Sensor” Pressure Module

Model Range Accuracy Media

90-10G/2500G 10/2,500 PSIG ±0.025% Rdg +0.01%FS 316SS Compatible

Differential Pressure Modules

Model Range Accuracy Media

90-10WD ±10 "H
90-5D 5 PSID ±0.025% Rdg +0.01% FS 316SS High/Dry Gas Low
90-15D 15 PSID ±0.025% Rdg +0.01% FS 316SS High/Dry Gas Low
90-30D 30 PSID ±0.025% Rdg +0.01% FS 316SS High/Dry Gas Low
90-100D 100 PSID ±0.025% Rdg +0.01% FS 316SS High/Dry Gas Low

O Diff. ±0.025 in. H2O Clean Dry Gasses

2

Absolute Pressure Modules

Model Range Accuracy Media

90-15A 15 PSIA ± 0.05% FS 316SS Compatible
90-30A 30 PSIA ± 0.05% FS 316SS Compatible

Vacuum Modules

Model Range Accuracy Media

90-15V VAC to 0 PSIG ± 0.05% FS 316SS Compatible
90-15C VAC to 15 PSIG ± 0.05% FS 316SS Compatible

MODPAK 91 MODULE HOLDER

PHONE: [phone] • FAX: [phone]

E-MAIL: [e-mail] • WEB: www.altekcalibrators.com