Omega Products PXTX-703 User Manual

2-WIRE TRANSMITTER FOR USE WITH

®

OMEGA

CONVERTS mV, V, OR mA INPUT TO 4 TO 20 mA OUTPUT

PRESSURE TRANSDUCERS

PXTX-703

$

430

⻬ Provides 1000 V Input-

to-Output Isolation

⻬ 16 Switch-Selectable

Input Ranges

⻬ 80% Zero and Span

Adjustability Within
Each Input Range

⻬ 100 ms Response Time
⻬ Rugged, EMI/RFI

Shielded Housing

SPECIFICATIONS

Input Span: 16 ranges, switch

selectable (see range chart)

Note: Bipolar span selection will move the
unipolar range to reflect negative offset
(20 mA = ±10 mA)

Input Impedance:

Ranges 1 to 4: 5 MΩ, typical
Ranges 5 to 12: >200 kΩ

Ranges 13 to 16: 20 Ω, typical
Supply Voltage Range: 13 to 80 Vdc
Minimum Output Current:
Maximum Output Current:
Output Span (Fixed): 4 to 20 mA
Maximum Change in Supply Voltage

Effect: 0.05% of span
Maximum Change in Load Effect:

0.05% of span

Loop Voltage Drop: 13 Vdc @ 20 mA
Output Current Limiting:

Active: 27 mA; fused (fixed): 0.25 A

Stability:

Zero: ±0.02% of span/°C max

(±0.05%, bipolar)

Span: ±0.03% of span/°C max
Accuracy: Overall (includes best

straight line, linearity, hysteresis
and repeatability @ 25°C) ±0.2%
of any adjusted span, max

Linearity: ±0.1% of range
Hysteresis and Repeatability:

±0.05% of range

Zero Adjustability:

80% turn-up of span (max)
Span Adjustability: 80% turn-down of

full scale range (see range chart)

Response Time (63% Response):

100 ms, max
Output Ripple: 0.1% of span,

rms, typical 0.5%, max

3.3 mA, typical
24 mA, typical

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Normal-Mode Rejection:

16 dB @ 60 Hz

Common-Mode Rejection:

60 Hz: 80 dB; DC: 120 dB
Common-Mode Range: 60 Hz:

1000 Vrms; DC: 1000 Vdc

RFI Effect (1.5 W, 470 MHz
at 1.7'): <1% of span error

Isolation: 1000 Vrms maximum input

to output, input to case, output to case
Temperature Range: -40 to 80°C

(-40 to 176°F)

Weight: 265 g (0.58 lb)

TX70-RM,
mounting
ring for
HEP-TX,
$50.

HEP-TX, explosion­resistant housing, $80.

Both models shown
smaller than actual size.

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PXTX-703, $430, shown actual size.

16 Switch-Selectable Ranges

Input Input Minimum

Range Limits Span

1 0 to 100 mV 20 mV
2 0 to 200 mV 40 mV
3 0 to 316 mV 65 mV
4 0 to 632 mV 130 mV
5 0 to 1.78 V 360 mV
6 0 to 3.56V 710 mV
7 0 to 5.62V 1.2V
8 0 to 11.2V 2.3V

9 0 to 31.6V 6.4V
10 0 to 63V 12.6V
11 0 to 100V 20V
12 0 to 200V 40V
13 0 to 20 mA 4 mA
14 4 to 20 mA 3.2 mA
15 0 to 50 mA 10 mA
16 0 to 5 mA 1 mA

AVAILABLE FOR FAST DELIVERY!

To Order (Specify Model Number)

MODEL NO. PRICE DESCRIPTION

PXTX-703 $430 Two-wire transmitter, 16 switch-selectable input ranges
HEP-TX 80 Explosion-resistant housing (requires TX70-RM

mounting ring)

TX70-RM 50 Mounting ring for HEP-PX head

Comes complete with operator’s manual.

Ordering Example: PXTX-703, 2-wire transmitter, HEP-TX, explosion-resistant housing,
TX70-RM, mounting ring, $430 + 80 + 50 = $560.

C-19

One Omega Drive | Stamford, CT 06907 | 1-888-TC-OMEGA (1-888-826-6342) | [e-mail]

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088-466-342

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596-311-899

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