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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
See S
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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.
l
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com
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ent
i
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R
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om
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
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