NK TECHNOLOGIES VTD Series Instructions

Specifi cations
Power Supply 24 VAC/VDC External Power
A fuse rated maximum 5 A shall be
placed in series with the main input,
24 VDC, power terminal.
(20-45 VDC, 22-38 VAC), <2 VA
Power and output are not isolated. Do not connect together.
Input Range: Input 15 V: 25 KΩ, 25 V: 42 KΩ,
Impedance 50 V: 82 KΩ, 150 V: 250 KΩ,
300 V: 500 KΩ, 600 VDC: 1.00 MΩ
Output Signal 4-20 mA (capped at 24 mA max)
0-5 VDC (capped at 5.75 VDC)
0-10 VDC (capped at 11.5 VDC)
Response Time 250 ms (to 90% of step change)
Accuracy < 1% Full Scale
Linearity < 0.5%
Output Loading 4-20 mA: < 500 ohm
0-5/10 V: > 10 K ohm
Isolation Voltage 2200 VAC
Frequency Range DC
Enclosure UL94 V-0 Rated
Environmental Operating Temp.
-4 to 140°F (-20 to 60°C)
0–95% RH, Non-condensing
Pollution Degree 2
Altitude to 6561 ft (2000 meters)
Listings UL/cUL listed, CE
For products intended for the EU market, the following is ap-
plicable to the CE compliance of the product:
The VTD series comply with EN 61010-1 CAT III 600 V max
measurement category. Power source overvoltage category I as
defi ned per EN 61010-1
Warning! Risk of danger
Safe operation can only be guaranteed if the
transducer is used for the purpose for which it
was designed and within the limits of the techni-
cal specifi cations. When this symbol is used,
it means you must consult all documentation to
understand the nature of potential hazards and
the action required to avoid them.
Warning! Risk of electrical shock
When operating the transducer certain parts may
carry hazardous live voltage (e.g. primary con-
ductors, power supply). The transducer should
not be put into operation if the installation is not
complete.
Model Number Key
VTD 1 - 420 - 24U - DIN
CASE STYLE:
DIN - DIN rail compatible
POWER SUPPLY:
24U - Nominal 24 VAC/VDC
OUTPUT:
420 - 4-20 mA
005 - 0-5 VDC
010 - 0-10 VDC
VOLTAGE INPUT RANGE:
0 - 15 VDC
1 - 25 VDC
2 - 50 VDC
3 - 150 VDC
4 - 300 VDC
5 - 600 VDC
SENSOR TYPE:
VTD - DC Voltage Transducers
Know Your Power
Other NK Technologies Products Include:
AC & DC Current Transducers
AC & DC Current Operated Switches
1 & 3Power Transducers
Current & Potential Transformers (CTs & PTs)
3511 Charter Park Drive, San Jose, CA 95136
Phone: 800-959-4014 or 408-871-7510
Fax: 408-871-7515
sales@nktechnologies.com, www.nktechnologies.com
INSTRUCTIONS
VTD SERIES
DC Voltage Transducers
Ranges 15, 25, 50, 150, 300 and 600 Volts
4-20 mA, 0-5/10 VDC Outputs
Quick "How To" Guide
1. Ensure correct sensor model was chosen for Input Volt-
age of application.
2. Mount the sensor to a DIN rail using integrated mounting
clip on backside of transducer.
3. Connect input voltage -(5) & +(6) and output wiring
using up to 22-12 AWG copper conductors only insu-
lated to 75°C minmum and tighten to 6-in lbs. Refer
to "Output Wiring" section for voltage and impedance
recommendations.
4. Connect 24 VAC or DC power supply fused to 5 A to
terminals 3-4.
Do not connect power supply and signal circuits together.
There is no isolation.
292182001 Rev 9