Javelin 2-Wire Isolated Universal Transmitter


Javelin 2-Wire Isolated Universal Transmitter

Universal Input, 4-20mA Output, DIN Mount, Loop Powered, Isolated

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What it does

The Javelin accepts one of several popular input signal types and outputs a 4-20mA signal. Input types: RTD, mA, V, Pot, TC

The Javelin is a loop powered, isolated transmitter. One of its key features is its easy software setup using Define ToolBox. ToolBox enables simple and flexible programming of the Javelin in less than a minute, with no input signal or power supply required.

The Javelin offers flexible input options to suit a virtually endless range of industries. High quality signal conditioning is a popular application. Another widely used application is as a simple 4–20mA in, and 4–20mA out isolator, to protect inputs of PLC’s and SCADA systems from ground loops, transients, and the effectsof EMC.

The Javelin can also be used to convert other standard process signals (such as ±10V, 1–5V, and 0–10V) to a 4–20mA signal.

More sophisticated applications are also catered to. For example, a level signal from an odd shaped tank can be converted to a 4–20mA signal representing volume, by using the in-built linearization table.

At a glance:

  • 2-wire universal input: Accepts mA, V, mV, RTD, TC and potentiometer signals
  • 4–20mA current loop output
  • Isolation between input and output
  • High Accuracy 0.03%
  • Hassle-free DIN-rail mounting, with a space-saving (0.5″ wide) case
  • Simple USB setup Using Define ToolBox and requires Bridge Key

Try Before You Buy!

Use the product simulator inside our free ToolBox software to demo how this instrument works.

Bridge Key Required!

In addition to this software a Bridge Key is required for the configuration of this product.

You must order one unless you already have one from a previous product purchase.

How can we sell this product at this price?

If you have been comparing the Javelin with other UL temperature transmitters in the market, you’re wondering why this price is so competitive.

You may also by wondering what corners were cut for us to reduce the price. The answer is NONE.

You pay this price because…

Our products are made in New Zealand, not Asia. We are the manufacturer and you’re buying direct from our key partner in the US.
We don’t have an army of distributors and so don’t need to compensate for their heavy margin in our price.
We don’t need to employ a legion of phone support workers. Our products are so simple, we rarely receive tech support calls.
We almost never have product returns. Our products are very robust and so we don’t need to cover this in our pricing either.
Brand & Model Universal Input?
Isolated? UL listed?
Acromag 655T
No Yes Yes
Inor IPAQ-L Plus
Yes Yes
Omega DRLP
Yes No $240
Datexel DAT4035
Yes Yes No
Define Instruments Javelin
Yes Yes

(Prices checked Feb 28, 2017)

5 Year WarrantyRCM E2180CEC UL US Listed


Universal Input

Number of universal inputs 1: Accepts Thermocouple, RTD, Current, Voltage, & Potentiometer. (See below for full specifications for each input type)


Power supply: 10.5–36V DC

Supply voltage sensitivity: < ±0.005%/V FSO

Thermocouple Input

Thermocouple types:

K: -328 to 2300°F (-200 to 1260°C)

B: 752 to 3272°F (400 to 1800°C)

E: -328 to 1292°F (-200 to 700°C)

J: -328 to 1832°F (-200 to 1000°C)

R: 32 to 3092°F (0 to 1700°C)

S: 32 to 3092°F (0 to 1700°C)

T: -328 to 752°F (-200 to 400°C)

N: -328 to 2372°F (-200 to 1300°C)

Input impedance: >500KΩ min

T/C lead resistance: 100Ω max

Cold junction compensation: 14 to 140°F (-10 to 60°C)

CJC error: <0.02°c typical for all

Accuracy: 0.1% of FSO±1°C typical

Sensor open: Upscale/Downscale (software programmable)

RTD Input

RTD input type: PT100 (3-wire RTD DIN 43760:1980), or PT1000 (3-wire RTD standard) Calibrated range: -328 to 1562°F (-200 to 850°C), 0.1°C res

Lead wire resistance: 10Ω/lead max recommended

Sensor current: 0.15mA continuous

Sensor open: Upscale/Downscale (software programmable)

Accuracy: 0–300°C= ±0.15°C. <0°c or>300°C= ±0.3°C

Ambient drift: 0.003°C/C typical

Current Input

Range: 0/4–20mA

Input impedance: 10Ω

Linearity & repeatability: 0.1% FSO max

Accuracy: 0.1% FSO max

Ambient drift: <50ppm °c of fs

Response time: 400msec

Voltage Input

Ranges: ±200mV, –100mV to 1V, 0–10V, ±10V, 0–50V DC

Input impedance: >500KΩ on all ranges

Linearity & repeatability: 0.05% FSO max

Accuracy: 0.1% FSO max

Ambient drift: <50ppm °c of fs

Potentiometer Input

Potentiometer input: 3-wire

Excitation voltage: Variable

Potentiometer resistance: Low range (<2kω) or high range

Field programmable zero: 0–90% of span

Field programmable span: 0.1–100%

Linearity & repeatability: <±0.05% fso

Response time: 400msec

Ambient drift: <50ppm

Analog Output (Retransmission)

Analog output type: 4–20mA or 20–4mA (loop powered)

Isolation: Input/output isolated

Isolation test voltage: 2500V AC for 1min

Resolution: 1μA

Output load resistance: 650Ω at 24V DC (50Ω/V above 10.5V DC)

Max output current: Limited to <28ma

Response time: 400msec typical (10–90% 300msec typical)

Accurate to: <±0.03% fso


Define ToolBox: Simple software programming. Connect using the Bridge Key (sold separately). Program in less than a minute using Define ToolBox.


Casing: 35mm DIN rail mount. Installation Category II; Pollution Degree 2; Flame resistant

Ingress protection rating: IP20

Dimensions (H x W x D): 3.5 x 0.5 x 4.4″ (90 x 12.5 x 112mm)

Weight: 2.7oz (77g)

LED indication: Status LED for error notification

Environmental Conditions

Operating temperature: -4 to 131°F (-20 to 55°C)

Storage temperature: -4 to 149°F (-20 to 65°C)

Operating humidity: 5–85%RH max (non-condensing)

Altitude: 6561ft (2000m)

Certifications & Compliances

UL listed: File Number E473114

EMC: Emissions (EN 61326). Immunity (EN 61326). Safety (EN 61010-1).


JAV-2DLI Manual 15V01, 30-Mar-2015 | (1103 KB)
JAV-2DLI Datasheet 15V02, 27-Apr-2017 | (621 KB)


Define ToolBoxDefine ToolBox

Smart, simple software to program your non-Zen series products

Use Define ToolBox software to program your non-Zen series product via your PC. It configures:

ToolBox offers a simple interface for connecting to your compatible device, and a range of flexible configuration options, including an extensive library of pre-calibrated ranges and linearization tables for advanced scaling.

Define ToolBox Configuration Software

All prices are in US Dollars. For pricing in other currencies, please contact us.